CN108282885B - Method and device for signal transmission - Google Patents

Abstract

The present invention relates to the field of mobile communication, and in particular, to a technology for enabling different wireless communication systems to coexist on the same resource. In a signal transmission method, a terminal device determines a target resource for transmitting target information communicated with a network device, and sends or receives the target information at the target resource; the target information includes first type information and second type information , the first type of information is a part of the information type in the LTE system, the second type of information is the information type in the first wireless communication system, and the first wireless communication system is different from the LTE system. Through the solution provided by the present invention, the LTE system and other wireless communication systems can coexist on the same resources.

Description

Method and apparatus for signal transmission

technical field

The present invention relates to the field of wireless communication, and in particular, to a technology for enabling different wireless communication systems to coexist on the same resource.

Background technique

Long Term Evolution (Long Term Evolution, LTE) is the long-term evolution of the Universal Mobile Telecommunications System (UMTS) technical standard formulated by the 3rd Generation Partnership Project (The 3rd Generation Partnership Project, 3GPP). At present, LTE has gone through the standardization process of Release8 to Release14, and some features have been successfully commercialized. From Release8 to Release14 of LTE, each evolved version is compatible with the previous version. For example, the terminal equipment of Release 8/9 can work in the system of Release 10. The LTE system uses shared resources to schedule and transmit user data. The base station can schedule according to the different channel volumes of different users, the quality of service (QoS) requirements of the service, the utilization of the overall system resources and the interference level. Thereby, the system resources are used more effectively and the throughput of the system is maximized.

The downlink and uplink of the LTE system are based on Orthogonal Frequency Division Multiple Access (OFDMA) and Single-carrier Frequency-Division Multiple Access (SC-FDMA) respectively, and time-frequency resources are divided into time domains OFDM or SC-FDMA symbols in the dimension (hereinafter referred to as time-domain symbols) and sub-carriers in the frequency-domain dimension. LTE supports frequency division duplexing (Frequency Division Duplexing, FDD) and time division duplexing (Time Division Duplexing, TDD) two duplex modes. The radio frame of LTE on the air interface is divided into 10 subframes with a length of 1ms, and each subframe is composed of two time slots (slots) with a length of 0.5ms. The smallest resource granularity is called a resource element (Resource Element, RE), which means a time-frequency lattice point composed of a time-domain symbol in the time domain and a subcarrier in the frequency domain.

3GPP adopted the work plan of RP-160671 on the first version of 5G New Radio (NR) standardization at the RAN#71 meeting in March 3016. The goal of this work plan is to standardize related technologies to meet the communication needs of mobile broadband enhancement, large-scale MTC, and URLLC. The key technical design of NR may adopt advanced technologies such as channel coding methods, multiple access methods, and signal waveforms that are different from LTE. According to the working scenarios designed for NR, NR systems can be deployed both below and above 6 GHz.

Considering that the frequency band below 6GHz is also the frequency band in which the LTE system is deployed. In the later stage of LTE commercial use and the early stage of NR commercial use, how to effectively allocate frequency resources below 6 GHz to meet the needs of a smooth transition between LTE systems and NR systems is a problem to be solved, that is, how to make the LTE system and other wireless communication systems use the same resources coexist on.

SUMMARY OF THE INVENTION

The present invention aims to provide a signal transmission method and corresponding terminal equipment, network equipment and system, so that different wireless communication systems can coexist on the same resources.

In one aspect, an embodiment of the present invention provides a method for signal transmission. The method includes: a terminal device determines a target resource for transmitting target information communicated with a network device; the terminal device sends or receives the target information at the target resource; wherein the target information includes first type information and second type information, the first type information is part of the information type in the LTE system, the second type information is the information type in the first wireless communication system, and the first wireless communication system is different from the LTE system ; In the case that the terminal device sends the target information in the target resource, the information types in the LTE system include PUCCH, PRACH, SRS, PUSCH; when the terminal device receives the target information in the target resource In the case of target information, the information types in the LTE system include PSS, SSS, PBCH, CRS, PRS, CSI-RS, PCFICH, PDCCH, and PDSCH.

In a possible design, the target resource includes a first target resource and a second target resource on a shared resource; wherein, when the terminal device sends the target information on the target resource, the first target resource A target resource is used to send the first type of information, and the second target resource is used to send the second type of information; when the terminal device receives the target information at the target resource, the The first target resource is used to receive the first type of information, and the second target resource is used to receive the second type of information; both the first target resource and the second target resource belong to shared resources, and the The shared resources are resources that support the multiplexing of the LTE system and the first wireless communication system by means of time division and/or frequency division.

In a possible design, determining, by the terminal device, a target resource for transmitting the target information communicated with the network device includes: determining, by the terminal device, according to the reference information in the first type of information, within a first transmission time interval The included second target resource; wherein the reference information includes at least one of the following: a value of a CFI (Control Format Indicator, control format indicator) indicated by the PCFICH of the first transmission time interval; the first transmission time interval A time identifier of the transmission time interval in the LTE system; the value of the downlink system bandwidth indicated by the PBCH in the radio frame where the first transmission time interval is located, and the radio frame is a radio frame of the LTE system.

In a possible design, the terminal device determines a target resource for transmitting target information communicated with the network device, and further includes: the terminal device acquires the reference information according to first configuration information; wherein the first The configuration information is information sent by the network device for the terminal device, and the first configuration information includes at least one of a cell ID, a downlink system bandwidth, an identifier of a time location for sending the reference information, and an antenna configuration; or , the first configuration information includes a frequency location and/or a time location of at least one of PSS, SSS, and PBCH.

In a possible design, the terminal device receiving the target information at the target resource includes: the terminal device receiving the first type information at the first target resource; the terminal device according to the The reference signal in the first type of information receives the second type of information at the second target resource.

In a possible design, the terminal device receiving the second type information at the second target resource according to the reference signal in the first type information includes: the terminal device determining the type of information according to the second configuration information The reference signal; wherein, the second configuration information is information sent by the network device for the terminal device, and the second configuration information includes a cell ID, a downlink system bandwidth, and an identifier of a time location for sending the reference signal , at least one of antenna configurations; or, the second configuration information includes a frequency position and/or a time position of at least one of PSS, SSS, and PBCH.

In a possible design, the target resource further includes a third target resource on the exclusive resource, the exclusive resource is a resource exclusively used by the first wireless communication system, and the third target resource is used for sending or receiving the second type information; the terminal device receiving the target information at the target resource includes: the terminal device receiving the target information at the third target resource according to the reference signal in the second type information Describe the second type of information.

In a possible design, the first type of information includes at least one type of preprocessing-free information in the LTE system, and the terminal device does not need to perform DFT preprocessing on the transmitted information before sending the preprocessing-free information.

In a possible design, the preprocessing-free information includes at least one of the following: SRS parameter configuration information, configuration information of at least one of the PUCCH formats 1/1a/1b/2/2a/2b, and the corresponding uplink data DMRS configuration information; determining, by the terminal device, a target resource for transmitting target information communicated with a network device includes: determining, by the terminal device, the first target resource included in the first transmission time interval according to the third configuration information; The third configuration information is information sent by the network device for the terminal device, and the third configuration information includes at least one of the following: SRS parameter configuration information, PUCCH format 1/1a/1b/2/2a Configuration information of at least one format in /2b, and DMRS configuration information corresponding to uplink data.

In a possible design, the first type of information includes at least one type of code division multiplexing information in the LTE system, and the code division multiplexing information is to use a code division multiple access method to multiplex the same time for multiple terminal devices and frequency resource information.

In a possible design, sending the target information by the terminal device on the target resource includes: determining, by the terminal device in the candidate information set according to the first indication information, the target information to be sent within the second transmission time interval. First type information, the candidate information set includes at least one configuration information of the first type information and at least one configuration information of the second type information, and the first indication information is the control corresponding to the second transmission time interval information.

In a possible design, the method further includes: the terminal device sends capability indication information to the network device, where the capability indication information is used to indicate that the terminal device can send or receive the first type of information.

On the other hand, an embodiment of the present invention provides a method for signal transmission. The method includes: a network device determines a target resource for transmitting target information communicated with a terminal device; the network device sends or receives the target information at the target resource; wherein the target information includes first type information and second type information, the first type information is part of the information type in the LTE system, the second type information is the information type in the first wireless communication system, and the first wireless communication system is different from the LTE system ; In the case that the terminal device sends the target information in the target resource, the information types in the LTE system include PSS, SSS, PBCH, CRS, PRS, CSI-RS, PCFICH, PDCCH, PDSCH; When the terminal device receives the target information on the target resource, the information types in the LTE system include PUCCH, PRACH, SRS, and PUSCH.

In a possible design, the target resource includes a first target resource and a second target resource on a shared resource; wherein, when the network device sends the target information on the target resource, the first target resource A target resource is used to send the first type of information, and the second target resource is used to send the second type of information; when the network device receives the target information at the target resource, the The first target resource is used to receive the first type of information, and the second target resource is used to receive the second type of information; both the first target resource and the second target resource belong to shared resources, and the The shared resources are resources that support the multiplexing of the LTE system and the first wireless communication system by means of time division and/or frequency division.

In a possible design, the sending, by the network device, the target information on the target resource includes: the network device sending configuration information to the terminal device, where the configuration information includes first configuration information and second configuration information. information and at least one of third configuration information; wherein, the first configuration information includes at least one of a cell ID, a downlink system bandwidth, an identifier of a time location where the reference information is sent, and an antenna configuration; or, all The first configuration information includes a frequency position and/or a time position of at least one of PSS, SSS, and PBCH; the second configuration information includes a cell ID, a downlink system bandwidth, an identifier of a time position for sending the reference signal, at least one of antenna configurations; or, the second configuration information includes a frequency position and/or a time position of at least one of PSS, SSS, and PBCH; the third configuration information includes at least one of the following: SRS parameters Configuration information, configuration information of at least one of PUCCH formats 1/1a/1b/2/2a/2b, and DMRS configuration information corresponding to uplink data.

In a possible design, the first type of information includes at least one type of preprocessing-free information in the LTE system, where the preprocessing-free information is information that does not need to be preprocessed by DFT before being sent.

In a possible design, the first type of information includes at least one type of code division multiplexing information in the LTE system, and the code division multiplexing information is to use a code division multiple access method to multiplex the same time for multiple terminal devices and frequency resource information.

In a possible design, sending the target information by the network device on the target resource includes: the network device sending first indication information to the terminal device, where the first indication information is used to send the target information to the terminal device. The terminal device indicates alternative information to be sent at the second transmission time interval, the alternative information is information in an alternative information set, and the alternative information set includes at least one configuration information of the first type of information and at least one second type of information. Configuration information for type information.

In a possible design, the method further includes: receiving, by the network device, capability indication information sent by the terminal device, where the capability indication information is used to indicate that the terminal device can send or receive the first type of information .

On the other hand, an embodiment of the present invention provides a terminal device. The terminal device includes: a determination unit for determining a target resource for transmitting target information communicated with a network device; a transmission unit for sending or receiving the target information at the target resource; wherein the target information Including first type information and second type information, the first type information is part of the information type in the LTE system, the second type information is the information type in the first wireless communication system, the first wireless communication The system is different from the LTE system; when the transmission unit is used to send the target information on the target resource, the information types in the LTE system include PUCCH, PRACH, SRS, and PUSCH; In the case that the target information is received in the target resource, the information types in the LTE system include PSS, SSS, PBCH, CRS, PRS, CSI-RS, PCFICH, PDCCH, and PDSCH.

In a possible design, the target resource includes a first target resource and a second target resource on the shared resource; wherein, when the transmission unit is configured to send the target information on the target resource, the The first target resource is used to send the first type information, and the second target resource is used to send the second type information; in the case that the transmission unit is used to receive the target information at the target resource the first target resource is used to receive the first type of information, and the second target resource is used to receive the second type of information; both the first target resource and the second target resource belong to the shared resources, and the shared resources are resources that support multiplexing of the LTE system and the first wireless communication system by means of time division and/or frequency division.

In a possible design, the determining unit is further configured to: determine the second target resource included in the first transmission time interval according to the reference information in the first type information; wherein the reference information includes the following At least one: the value of the CFI indicated by the PCFICH of the first transmission time interval; the time mark of the first transmission time interval in the LTE system; the value of the CFI indicated by the PBCH in the radio frame where the first transmission time interval is located The value of the downlink system bandwidth, the radio frame is the radio frame of the LTE system.

In a possible design, the determining unit is further configured to: acquire the reference information according to first configuration information; wherein the first configuration information is information sent by the network device for the terminal device, and the The first configuration information includes at least one of a cell ID, a downlink system bandwidth, an identifier of a time position for sending the reference information, and an antenna configuration; or, the first configuration information includes at least one of PSS, SSS, and PBCH frequency location and/or time location.

In a possible design, the transmission unit is further configured to: receive the first type information on the first target resource; receive the first type information on the second target resource according to the reference signal in the first type information Describe the second type of information.

In a possible design, the transmission unit is further configured to: determine the reference signal according to second configuration information; wherein the second configuration information is information sent by the network device for the terminal device, and the The second configuration information includes at least one of a cell ID, a downlink system bandwidth, an identifier of a time position for sending the reference signal, and an antenna configuration; or, the second configuration information includes at least one of PSS, SSS, and PBCH frequency location and/or time location.

In a possible design, the target resource further includes a third target resource on the exclusive resource, the exclusive resource is a resource exclusively used by the first wireless communication system, and the third target resource is used for sending Or receive the second type information; the transmission unit is further configured to: receive the second type information in the third target resource according to the reference signal in the second type information.

In a possible design, the first type of information includes at least one type of preprocessing-free information in the LTE system, and the terminal device does not need to perform DFT preprocessing on the transmitted information before sending the preprocessing-free information.

In a possible design, the preprocessing-free information includes at least one of the following: SRS parameter configuration information, configuration information of at least one of the PUCCH formats 1/1a/1b/2/2a/2b, and the corresponding uplink data DMRS configuration information; the determining unit is further configured to: determine the first target resource included in the first transmission time interval according to the third configuration information; wherein the third configuration information includes at least one of the following: SRS parameter configuration information, configuration information of at least one of PUCCH formats 1/1a/1b/2/2a/2b, and DMRS configuration information corresponding to uplink data.

In a possible design, the first type of information includes at least one type of code division multiplexing information in the LTE system, and the code division multiplexing information is to use a code division multiple access method to multiplex the same time for multiple terminal devices and frequency resource information.

In a possible design, the transmission unit is further configured to: determine the first type of information to be sent within the second transmission time interval in an alternative information set according to the first indication information, where the alternative information set includes at least One piece of configuration information of the first type of information and at least one piece of configuration information of the second type of information, the first indication information is control information corresponding to the second transmission time interval.

In a possible design, the transmission unit is further configured to: send capability indication information to the network device, where the capability indication information is used to indicate that the terminal device can send or receive the first type of information.

On the other hand, an embodiment of the present invention provides a terminal device. The terminal device includes: a processor for determining a target resource for transmitting target information communicated with a network device; a transmitter/receiver for sending or receiving the target information at the target resource; wherein the The target information includes first type information and second type information, the first type information is a part of the information type in the LTE system, the second type information is the information type in the first wireless communication system, and the first type information is the information type in the first wireless communication system. A wireless communication system is different from an LTE system; when the transmitter/receiver is used to send the target information on the target resource, the information types in the LTE system include PUCCH, PRACH, SRS, and PUSCH; The transmitter/receiver is configured to receive the target information in the target resource, the information types in the LTE system include PSS, SSS, PBCH, CRS, PRS, CSI-RS, PCFICH, PDCCH, PDSCH .

In a possible design, the target resource includes a first target resource and a second target resource on a shared resource; wherein, when the transmitter/receiver is used to send the target information on the target resource , the first target resource is used to send the first type information, the second target resource is used to send the second type information; the transmitter/receiver is used to receive the information at the target resource In the case of target information, the first target resource is used to receive the first type information, and the second target resource is used to receive the second type information; the first target resource and the second target The resources are all shared resources, and the shared resources are resources that support multiplexing of the LTE system and the first wireless communication system by means of time division and/or frequency division.

In a possible design, the processor is further configured to: determine the second target resource included in the first transmission time interval according to the reference information in the first type information; wherein the reference information includes the following At least one: the value of the CFI indicated by the PCFICH of the first transmission time interval; the time mark of the first transmission time interval in the LTE system; the value of the CFI indicated by the PBCH in the radio frame where the first transmission time interval is located The value of the downlink system bandwidth, the radio frame is the radio frame of the LTE system.

In a possible design, the processor is further configured to: acquire the reference information according to first configuration information; wherein the first configuration information is information sent by the network device for the terminal device, and the The first configuration information includes at least one of a cell ID, a downlink system bandwidth, an identifier of a time position for sending the reference information, and an antenna configuration; or, the first configuration information includes at least one of PSS, SSS, and PBCH frequency location and/or time location.

In a possible design, the transmitter/receiver is further configured to: receive the first type information at the first target resource; The resource receives the second type of information.

In a possible design, the transmitter/receiver is further configured to: determine the reference signal according to second configuration information; wherein the second configuration information is information sent by the network device for the terminal device , the second configuration information includes at least one of a cell ID, a downlink system bandwidth, an identifier of a time position for sending the reference signal, and an antenna configuration; or, the second configuration information includes PSS, SSS, and PBCH. The frequency location and/or the time location of at least one item.

In a possible design, the target resource further includes a third target resource on the exclusive resource, the exclusive resource is a resource exclusively used by the first wireless communication system, and the third target resource is used for sending Or receive the second type information; the transmitter/receiver is further configured to: receive the second type information at the third target resource according to the reference signal in the second type information.

In a possible design, the first type of information includes at least one type of preprocessing-free information in the LTE system, and the terminal device does not need to perform DFT preprocessing on the transmitted information before sending the preprocessing-free information.

In a possible design, the preprocessing-free information includes at least one of the following: SRS parameter configuration information, configuration information of at least one of the PUCCH formats 1/1a/1b/2/2a/2b, and the corresponding uplink data DMRS configuration information; the processor is further configured to: determine the first target resource included in the first transmission time interval according to the third configuration information; wherein the third configuration information includes at least one of the following: SRS parameter configuration information, configuration information of at least one of PUCCH formats 1/1a/1b/2/2a/2b, and DMRS configuration information corresponding to uplink data.

In a possible design, the first type of information includes at least one type of code division multiplexing information in the LTE system, and the code division multiplexing information is to use a code division multiple access method to multiplex the same time for multiple terminal devices and frequency resource information.

In a possible design, the transmitter/receiver is further configured to: determine the first type of information to be sent within the second transmission time interval in the alternative information set according to the first indication information, the alternative information The set includes at least one configuration information of the first type of information and at least one configuration information of the second type of information, and the first indication information is control information corresponding to the second transmission time interval.

In a possible design, the transmitter/receiver is further configured to: send capability indication information to the network device, where the capability indication information is used to indicate that the terminal device can send or receive the first type of information .

On the other hand, an embodiment of the present invention provides a network device. The network device includes: a determination unit for determining a target resource for transmitting target information communicated with a terminal device; a transmission unit for sending or receiving the target information at the target resource; wherein the target information Including first type information and second type information, the first type information is part of the information type in the LTE system, the second type information is the information type in the first wireless communication system, the first wireless communication The system is different from the LTE system; when the transmission unit is used to send the target information on the target resource, the information types in the LTE system include PSS, SSS, PBCH, CRS, PRS, CSI-RS, PCFICH, PDCCH, PDSCH; when the transmission unit is configured to receive the target information on the target resource, the information types in the LTE system include PUCCH, PRACH, SRS, and PUSCH.

In a possible design, the target resource includes a first target resource and a second target resource on the shared resource; wherein, when the transmission unit is configured to send the target information on the target resource, the The first target resource is used to send the first type information, and the second target resource is used to send the second type information; in the case that the transmission unit is used to receive the target information at the target resource the first target resource is used to receive the first type of information, and the second target resource is used to receive the second type of information; both the first target resource and the second target resource belong to the shared resources, and the shared resources are resources that support multiplexing of the LTE system and the first wireless communication system by means of time division and/or frequency division.

In a possible design, the transmission unit is further configured to: send configuration information for the terminal device, where the configuration information includes a cell ID, a downlink system bandwidth, an identifier of a time position for sending the reference signal, and an antenna configuration or, the configuration information includes a frequency location and/or a time location of at least one of PSS, SSS, and PBCH.

In a possible design, the first type of information includes at least one type of preprocessing-free information in the LTE system, where the preprocessing-free information is information that does not need to be preprocessed by DFT before being sent.

In a possible design, the first type of information includes at least one type of code division multiplexing information in the LTE system, and the code division multiplexing information is to use a code division multiple access method to multiplex the same time for multiple terminal devices and frequency resource information.

In a possible design, the transmission unit is further configured to: send first indication information to the terminal device, where the first indication information is used to indicate to the terminal device an alternative to be sent at the second transmission time interval information, the candidate information is the information in the candidate information set, and the candidate information set includes at least one configuration information of the first type of information and at least one configuration information of the second type of information.

In a possible design, the transmission unit is further configured to: receive capability indication information sent by the terminal device, where the capability indication information is used to indicate that the terminal device can send or receive the first type of information.

On the other hand, an embodiment of the present invention provides a network device. The network device includes: a processor for determining a target resource for transmitting target information communicated with a terminal device; a transmitter/receiver for sending or receiving the target information at the target resource; wherein the The target information includes first type information and second type information, the first type information is a part of the information type in the LTE system, the second type information is the information type in the first wireless communication system, and the first type information is the information type in the first wireless communication system. A wireless communication system is different from the LTE system; when the transmitter/receiver is used to transmit the target information in the target resource, the information types in the LTE system include PSS, SSS, PBCH, CRS, PRS , CSI-RS, PCFICH, PDCCH, PDSCH; when the transmitter/receiver is used to receive the target information in the target resource, the information types in the LTE system include PUCCH, PRACH, SRS, PUSCH .

In a possible design, the target resource includes a first target resource and a second target resource on a shared resource; wherein, when the transmitter/receiver is used to send the target information on the target resource , the first target resource is used to send the first type information, the second target resource is used to send the second type information; the transmitter/receiver is used to receive the information at the target resource In the case of target information, the first target resource is used to receive the first type information, and the second target resource is used to receive the second type information; the first target resource and the second target The resources are all shared resources, and the shared resources are resources that support multiplexing of the LTE system and the first wireless communication system by means of time division and/or frequency division.

In a possible design, the transmitter/receiver is further configured to: send configuration information for the terminal device, where the configuration information includes a cell ID, a downlink system bandwidth, an identifier of a time position for sending the reference signal, at least one of antenna configurations; or, the configuration information includes a frequency position and/or a time position of at least one of PSS, SSS, and PBCH.

In a possible design, the first type of information includes at least one type of preprocessing-free information in the LTE system, where the preprocessing-free information is information that does not need to be preprocessed by DFT before being sent.

In a possible design, the first type of information includes at least one type of code division multiplexing information in the LTE system, and the code division multiplexing information is to use a code division multiple access method to multiplex the same time for multiple terminal devices and frequency resource information.

In a possible design, the transmitter/receiver is further configured to: send first indication information to the terminal device, where the first indication information is used to indicate to the terminal device to send at the second transmission time interval The candidate information is the information in the candidate information set, and the candidate information set includes at least one configuration information of the first type of information and at least one configuration information of the second type of information.

In a possible design, the transmitter/receiver is further configured to: receive capability indication information sent by the terminal device, where the capability indication information is used to indicate that the terminal device can send or receive the first type information.

On the other hand, an embodiment of the present invention provides a communication system. The communication system includes the terminal device and the network device described in the above aspects.

Description of drawings

1 is a schematic diagram of a communication system to which an embodiment of the present invention is applied;

FIG. 2 is a schematic diagram of the LTE system and the NR system sharing resources by time division and or frequency division;

3 is a schematic flowchart of a method for signal transmission provided by an embodiment of the present invention;

FIG. 4 is a schematic diagram of the LTE system and the NR system working in one carrier through FDM;

5A is a schematic diagram of the coexistence of an LTE system and an NR system through FDM;

5B is a schematic diagram of coexistence of an LTE system and an NR system through MBSFN configuration in the LTE system;

6 is a schematic diagram of an MBSFN subframe under an LTE system;

FIG. 7 is a schematic communication diagram of another method for signal transmission provided by an embodiment of the present invention;

FIG. 8 is a schematic communication diagram of another signal transmission method provided by an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;

FIG. 10 is a schematic structural diagram of another terminal device provided by an embodiment of the present invention;

11 is a schematic structural diagram of a network device according to an embodiment of the present invention;

FIG. 12 is a schematic structural diagram of another network device according to an embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a schematic diagram of a communication system to which an embodiment of the present invention is applied.

As shown in FIG. 1 , the communication system 100 may include at least one network device 110 for the LTE system, at least one network device 111 for the first wireless communication system, and a plurality of terminal devices located within the coverage of the network devices 110 and 111 120, wherein at least one terminal device 120 can communicate with the network device 110 for the LTE system and the network device 111 for the first wireless communication system. The network device 110 used in the LTE system and the network device 111 used in the first wireless communication system belong to network devices supporting wireless communication protocols of different generations, and communicate with the terminal device 120 using different communication protocols. For example, the network device 110 used in the LTE system is a network device supporting the LTE protocol, and the network device 111 used in the first wireless communication system is a network device supporting the 5G protocol. FIG. 1 exemplarily shows two network devices and three terminal devices. Alternatively, the communication system 100 may include a plurality of network devices and the coverage of each network device may include other numbers of terminal devices. The network device 110 used in the LTE system and the network device 111 used in the first wireless communication system may be the same physical entity, or may be two physical entities linked by ideal backhaul, which is not limited in this embodiment of the present invention .

Optionally, the wireless communication system 100 may further include other network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present invention.

The first wireless communication system involved in the embodiment of the present invention may be an NR system, or may be another non-LTE wireless communication system that shares resources with the LTE system, which is not limited in this embodiment of the present invention. In the following description, it is taken as an example that the first wireless communication system is an NR system. Those of ordinary skill in the art can know that the technical solutions provided in the embodiments of the present invention are also applicable to other non-LTE systems that share resources with the LTE system.

As shown in FIG. 2 , the network device used in the LTE system and the network device used in the first wireless communication system each have exclusive resources for communicating with the served terminal device. In addition, both the network device for the LTE system and the network device for the first wireless communication system can communicate with the served terminal device using the resources of the shared resources. Alternatively, the present invention is applicable to a scenario in which both the network device used in the LTE system and the network device used in the first wireless communication system can use the resources of the shared resource to communicate with the served terminal device, which is different from the network device used in the LTE system. It is irrelevant whether each of the network devices used in the first wireless communication system has exclusive resources for communicating with the served terminal device.

The system architecture and service scenarios described in the embodiments of the present invention are for the purpose of illustrating the technical solutions of the embodiments of the present invention more clearly, and do not constitute a limitation on the technical solutions provided by the embodiments of the present invention. Those skilled in the art can know that with the evolution of the network architecture and the emergence of new service scenarios, the technical solutions provided by the embodiments of the present invention are also applicable to similar technical problems.

The network devices involved in the embodiments of the present invention may be used to provide wireless communication functions for terminal devices. The network equipment may include various forms of macro base stations, micro base stations (also referred to as small cells), relay stations, access points, and the like. The network device can be an evolved base station (Evolutional NodeB, eNB or e-NodeB) in LTE, a corresponding device gNB (Gigabit NodeB) in a 5G network, or a network device that has the functions of the above two devices . For the convenience of description, in all the embodiments of the present invention, the above-mentioned apparatuses for providing wireless communication functions for terminal devices are collectively referred to as network devices.

The terminal equipment involved in the embodiments of the present invention may also be referred to as user equipment (User Equipment, UE), a mobile station (Mobile Station, MS), a mobile terminal (Mobile Terminal), etc. The terminal equipment can be accessed via wireless A Radio Access Network (RAN) communicates with one or more core networks. For example, a terminal device may be a mobile phone (or "cellular" phone), a computer with a mobile terminal, etc., or a portable, pocket-sized, hand-held, computer-built-in, or vehicle-mounted mobile device, which is associated with wireless access Exchange language and/or data over the Internet. This is not specifically limited in this embodiment of the present invention.

In order to make the LTE system and the NR system coexist on the same resources, a possible way is to re-plan the use of frequency bands below 6 GHz in the commercial phase of the NR system, so that LTE and NR work in different frequency bands. However, in this way, the radio frequency band is hard divided into the LTE frequency band and the NR frequency band, which results in that the use of radio frequency resources cannot meet the business ratio requirements of LTE and NR, and the frequency resource use efficiency is low. Another possible way is to deploy both LTE and NR systems on the same resources. Using this method can effectively improve the spectral efficiency, but it needs to ensure that the NR system deployed on the resources of this frequency band does not affect the normal operation of the LTE system.

For the second method in the evolution from LTE to NR, that is, deploy LTE and NR on the same resources at the same time, and require that the NR system does not affect the normal operation of the LTE system, the following solutions can be adopted:

1) FDM

On shared resources, LTE and NR work on different bandwidths through FDM.

2) TDM

a) MBSFN field in MBSFN subframe of LTE is used for NR transmission

The LTE system supports regular subframes for transmitting unicast information to a single terminal device, and multicast/broadcast single frequency network (MBSFN, Multimedia Broadcast Multicast Service Single Frequency Network) subframes for transmitting broadcast information to multiple terminal devices . The base station informs the terminal equipment which subframes are regular subframes and which subframes are MBSFN subframes through a broadcast message. Each MBSFN subframe is divided into non-MBSFN domain and MBSFN domain. The non-MBSFN domain occupies the first or the first two OFDM symbols in this MBSFN subframe, and is used to send the PDCCH related to uplink data scheduling, and the specific number of occupied symbols is indicated by the PCFICH in the subframe. Resources other than the non-MBSFN domain in the MBSFN subframe are the MBSFN domain. For a terminal device supporting MBMS (Multimedia Broadcast Multicast Service), it is determined whether to receive and demodulate the MBMS signal in the MBSFN domain in the MBSFN subframe through whether the higher layer signaling is configured to demodulate the MBMS signal. When LTE and NR are deployed on the same carrier, MBSFN subframes can be configured for LTE terminal equipment, and the terminal equipment is restricted from receiving MBMS signals in the MBSFN domain of MBSFN through high-layer signaling. On the other hand, the MBSFN domain in the MBSFN subframe is used for signal transmission of the NR system. In this way, the purpose of using LTE to configure the MBSFN subframe to support NR without affecting the normal operation of the LTE system can be achieved.

b) NR is supported in the uplink subframe of the LTE system

The uplink transmission of the terminal equipment in the LTE system is performed based on the scheduling of the eNB. The eNB may not schedule any terminal equipment to send data in certain uplink subframes by implementing methods, and then these data can be used in the NR system. Especially for the TDD system, the uplink subframe of TDD that does not transmit any terminal equipment data can be used for both the uplink transmission of the NR system and the downlink transmission of the NR system. In TDD versions prior to LTE Release 12, the eNB indicates the UL/DL subframe configuration option of TDD to the terminal device through system information. LTE Release 12 and later versions introduce enhanced Interference Management and Traffic Adaptation (eIMTA), which makes the TDD downlink/uplink (UL/DL) ratio more flexible adapt to interference management and business needs.

c) On shared resources, NR is supported when SCell is off in LTE

LTE Release 10 and later versions support carrier aggregation (Carrier Aggregation, CA). The CA system of LTE includes a primary cell (Pcell, Primary Cell) and at least one secondary cell (Secondary Cell, Scell). To better manage the battery consumption of CA-configured terminal devices, LTE provides an SCell on and off mechanism. During the de-shutdown of the SCell, the base station only transmits the DRS in the SCell, so the resources other than the DRS can be used for the NR system.

In the above-mentioned various schemes using FDM and TDM to support coexistence of LTE and NR, the service support ratio of LTE and NR is not flexible enough. For example, in the FDM scheme, the ratio of NR and LTE services that can be supported depends on the ratio between the bandwidths allocated to LTE and NR; in the TDM scheme in which the MBSFN subframe of LTE supports NR, LTE and NR The proportion of using the shared frequencies respectively depends on the configuration of the MBSFN subframes broadcast signaled. If the configuration of the MBSFN subframe is such that only one subframe in a frame is configured as an MBSFN subframe, the NR can only use the MBSFN field configured as an MBSFN subframe. If the demand for shared frequencies in NR systems increases, broadcast signaling is required to reconfigure MBSFN subframes. Considering that the period of broadcast signaling reconfiguration is long, the dynamic usage ratio of the service ratio between LTE and NR cannot be satisfied. Similarly, in the scheme in which the uplink subframe of LTE supports NR, the service support ratio of LTE and NR is related to the ratio of DL/UL subframe in LTE. In the scheme in which the deactivated state of SCell in LTE supports NR, only all the Only when the terminal device is in the deactivated state can resources other than the DRS during the period be configured for the terminal device to use.

In general, the above-mentioned solutions supporting LTE and NR deployment on the same carrier are insufficient in meeting the requirement of flexibly adapting to the service ratio between LTE and NR.

In addition, when LTE and NR systems are deployed on the same carrier at the same time, in order to meet the needs of dynamically adapting the service ratio between LTE and NR, the terminal equipment can work in a dual-mode state during the smooth transition between LTE and NR systems. , that is, one mode of the terminal device is to communicate with the base station in the LTE system, and the other mode is to communicate with the base station in the NR system. In this way, the base station can adjust which mode the terminal device works in according to the requirement of the service ratio between LTE and NR. For example, when the service volume of the terminal equipment increases and the service volume of the LTE terminal equipment decreases, since the configuration parameters of LTE cannot be dynamically adjusted to adapt to the changing requirements of the two service ratios, before reconfiguring the parameters, the base station can schedule the terminal equipment to The first mode communicates with a base station in an LTE system.

Although the terminal equipment works in the dual-mode state to realize the transition stage from the LTE system to the NR system, when the LTE and NR systems are deployed on the same carrier at the same time, the service ratio of the two systems needs to change dynamically. However, due to the key technical design of NR and LTE are different. , the dual-mode method leads to high cost and complexity requirements for terminal equipment. For example, the LTE traffic channel adopts Turbo coding, while the NR traffic channel adopts LDPC coding method. The terminal equipment working in dual mode needs to have the capability of Turbo encoding and decoding and LDPC encoding and decoding at the same time, which directly leads to the high cost and complexity of the terminal equipment. high.

Several schemes that deploy LTE and NR on shared resources at the same time and require that the NR system does not affect the normal operation of the LTE system cannot support the dynamic allocation of resources used by LTE and NR on the shared resources, and cannot meet the requirements of the LTE system and the NR system. However, if the terminal equipment simultaneously possesses all LTE signal transmission and reception functions, the cost and complexity of the terminal equipment will be very high.

The embodiments of the present invention will be described in further detail below based on the above-mentioned common aspects involved in the present invention.

FIG. 3 is a schematic flowchart of a signal transmission method provided by an embodiment of the present invention.

S301: The terminal device determines a target resource for transmitting target information communicated with the network device.

S302: The network device determines a target resource for transmitting target information communicated with the terminal device.

S303: The terminal device sends the target information to the network device at the target resource or receives the target information from the network device. The target information includes first type information and second type information. The first type of information is part of the information type in the LTE system, and the second type of information is the information type in the NR system.

The first type of information and the second type of information included in the target information may be information that the terminal device communicates with the network device at different times, or information that the terminal device communicates with the network device at the same time. Taking the LTE system and the NR system working in one carrier through FDM as an example, as shown in FIG. 4 , the first type of information and the second type of information are transmitted on the target resource.

Information types in the LTE system include synchronization information, broadcast information, control information, service information, reference signals, random access information, and the like. The control information includes downlink control information and uplink control information. The service information includes downlink service information and uplink service information. The reference signals include downlink reference signals and uplink reference signals. The more information of the first type supported by the terminal device, the better its adaptability to the dynamically changing demands of the LTE system and the NR system service ratio on the shared resources, but the higher the requirements for cost and complexity.

In the case where the terminal device sends the target information on the target resource, the information types in the LTE system include Physical Uplink Control Channel (PUCCH), Physical Random Access Channel (PRACH), Probe Reference Signal (Sounding Reference Symbol, SRS), Physical Uplink Shared Channel (Physical Uplink Shared Channel, PUSCH). In the case where the terminal device receives the target information on the target resource, the information types in the LTE system include a primary synchronization signal (Primary Synchronization Signal, PSS), a secondary synchronization signal (Secondary Synchronization Signal, SSS), and a physical broadcast channel (Physical Broadcast Channel, PBCH) ), Cell-specific Reference Signal (CRS), Positioning Reference Signal (PRS), CSI Reference Signal (Channel-state Information Reference Signals, CSI-RS), Physical Control Format Indicator Channel ( Physical Control Format Indicator Channel, PCFICH), Physical downlink control signal (Physical downlink control channel, PDCCH), Physical downlink shared channel (Physical downlink shared channel, PDSCH).

As an example, if the first type of information includes PSS and SSS, the terminal device can obtain the cell identifier (Cell Identifier, Cell ID), time/frequency synchronization point, and cyclic prefix used by the LTE system in the shared resources according to the information. (Cyclic Prefix, CP) length, etc.

In another example, if the first type of information includes PBCH, the terminal device can obtain, according to the information, the downlink system bandwidth configured by the LTE system in the shared resources, the physical hybrid ARQ indicator channel (Physical Hybrid ARQ) of the LTE system in the shared resources -ARQ Indicator Channel, PHICH) resource configuration, the system frame number of the LTE system in the shared resource, the antenna configuration of the LTE system in the shared resource, etc., and the CRS sent by the LTE system in the shared resource can also be detected according to these information. information.

In another example, if the first type of information includes the PCFICH, the terminal device may acquire, according to the information, the number of symbols occupied by the PDCCH of the current subframe in the shared resource of the LTE system.

In another example, if the first type of information includes the PDCCH, the terminal device may acquire downlink control information sent by the LTE system in the current subframe in the shared resource according to the information.

In another example, if the first type of information includes the PDSCH, the terminal device may acquire, according to the information, the downlink data scheduled in the current subframe in the shared resource by the mid-LTE system. For example, the downlink data may carry the SIB message in the LTE system, the dedicated signaling of the terminal device, and the like.

In another example, if the first type of information includes PUCCH, the terminal device may feed back the uplink control information through the resources of the PUCCH channel of the LTE system in the shared resources.

Further, if the first type of information includes PRACH, the terminal device may send the random access signal by using the resources allocated to the PRACH of the LTE system in the shared resources.

In another example, if the first type of information includes the SRS, the terminal device may transmit the sounding reference signal by sharing the resources allocated to the LTE system in the shared resources.

By applying the technical solutions in the embodiments of the present invention, on the one hand, before the parameters are reconfigured to adapt to the dynamic change of the service ratio between the LTE system and the NR system, the terminal device can communicate with the network device through the signal form of the LTE system, thereby Adjusting the occupancy ratio of the two wireless communication systems to the shared resources, on the other hand, can avoid the cost and complexity of the terminal equipment being too high and unacceptable.

Optionally, the target resource includes a first target resource and a second target resource on the shared resource. When the terminal device sends the target information at the target resource, that is, the network device receives the target information at the target resource, the first target resource is used by the terminal device to send the first type of information to the network device, and the second target resource is used by the terminal device to send the first type of information to the network device. The network device sends the second type of information. When the terminal device receives the target information at the target resource, that is, the network sends the target information at the target resource, the first target resource is used by the terminal device to receive the first type of information from the network device, and the second target resource is used by the terminal device from the network device. The device receives the second type of information. Both the first target resource and the second target resource belong to shared resources. Shared resources are resources that support multiplexing of the LTE system and the NR system through time division and/or frequency division.

As an example, FIG. 5A shows the way in which the LTE system and the NR system coexist on the shared resource through FDM, and FIG. 5B shows the way in which the NR system communication is supported on the shared resource through the MBSFN domain in the MBSFN subframe in the LTE system. As shown in FIG. 5A , the first target resource belongs to the first resource, the second target resource belongs to the second resource, and the first resource and the second resource are mutually orthogonal resources in terms of shared resources. The first resource is a resource allocated for use by the LTE system, and the second resource is a resource allocated for use by the NR system.

Optionally, in S301, the terminal device determines the second target resource included in the first transmission time interval according to the reference information in the first type information. The reference information includes at least one of the following: the value of the CFI indicated by the PCFICH of the first transmission time interval, the time identifier of the first transmission time interval in the LTE system, and the downlink system indicated by the PBCH in the radio frame where the first transmission time interval is located. The value of the bandwidth. The time identifier of the first transmission time interval in the LTE system refers to the serial number of the subframe or the serial number of the time slot number in which the time interval is located. The radio frame here is the radio frame of the LTE system.

As an example, in an MBSFN subframe under the LTE system, the non-MBSFN domain occupies the first or the first two OFDM symbols in the MBSFN subframe, and the MBSFN domain occupies other symbols. If the MBSFN field in the MBSFN subframe in the LTE system is used for transmission in the NR system, the resources used for communication between the network device and the terminal device in the NR system on the shared resources are related to the size of the MBSFN field in the MBSFN subframe. The size of the MBSFN field is determined by the value of the CFI in the PCFICH of the subframe. Since the value of the CFI in the PCFICH changes in each subframe, in order to determine the position and size of the second resource in the subframe, the terminal device needs to determine the value of the CFI in the PCFICH. A possible way is that the network device sends indication information on a specific resource of the current subframe, and the terminal device determines the position and size of the second resource in the subframe by detecting the indication information. These specific resources are resources that the second resource necessarily includes. As shown in FIG. 6 , the indication information is located at symbols 3, 7, and 11 of the subframe, and is used to indicate the starting point of the symbol occupied by the second resource of the subframe. Another possible way is that the terminal device determines the number of symbols occupied by the LTE system by detecting the PCFICH sent by the network device in the LTE system. Therefore, the first type of information received by the terminal device from the network device needs to include the PCFICH.

Optionally, in S301, the terminal device receives first configuration information from the network device, and obtains reference information according to the first configuration information. The first configuration information includes at least one of a cell ID, a downlink system bandwidth, an identifier of a time position for sending the reference information, and an antenna configuration. Alternatively, the first configuration information includes a frequency location and/or a time location of at least one of PSS, SSS, and PBCH.

Taking the reference information including the value of the CFI indicated by the PCFICH of the first transmission time interval as an example, in order to read the PCFICH in the LTE system, the terminal device needs to obtain the cell ID, the downlink system bandwidth, and the time position at which the reference information is sent. Time stamp and antenna configuration information in the LTE system. The terminal device may acquire all or part of the information through the information in the first type of information. For example, PSS, SSS and PBCH are received in the first type information of the terminal device. The terminal device can determine the cell ID number in the LTE system, the time mark of the time position of sending the reference information in the LTE system through the PSS and the SSS, and obtain the information of the downlink system bandwidth in the LTE system through the PBCH. According to the information, the terminal device can obtain the value of the CFI indicated by the PCFICH of the first transmission time interval. Alternatively, a part of these pieces of information is included in the first type of information, so that the terminal device obtains part of the information required by the value of the CFI indicated by the PCFICH of the first transmission time interval by receiving the pieces of information. Other information for obtaining the value of the CFI indicated by the PCFICH of the first transmission time interval can be obtained by sending the indication information on the specific resource of the current subframe by the network device. The indication information may be the second type of information. That is, the first type of information includes at least one of PSS, SSS and PBCH. The terminal device acquires necessary information for reading PCFICH by reading at least one of PSS, SSS and PBCH. The network device may indicate the frequency position and/or time position of at least one of PSS, SSS, and PBCH to the terminal device through the first configuration information, so that the terminal device can read these channels. The terminal device may acquire the resources of the corresponding channel through the first configuration information and perform detection to acquire the information carried in the channel. Alternatively, for a channel not included in the first configuration information, the network device may directly send the information carried in the channel to the terminal device as the first configuration information. For example, if there is no frequency location and time location information of the PBCH in the first configuration information, the network device can directly configure the downlink system bandwidth, antenna configuration and other information carried in the PBCH to the terminal device.

FIG. 7 is a schematic communication diagram of another signal transmission method provided by an embodiment of the present invention.

S701: The terminal device determines a target resource for transmitting target information communicated with the network device. For a specific description, reference may be made to the description in S301 above, which will not be repeated here.

S702: The network device determines a target resource for transmitting target information communicated with the terminal device. For a specific description, reference may be made to the description in S302 above, which will not be repeated here.

S703: The terminal device receives target information from the network device at the target resource. The target information includes first type information and second type information. The first type of information is part of the information type in the LTE system, and the second type of information is the information type in the NR system. For a specific description, reference may be made to the description in S303 above, which will not be repeated here.

Optionally, in S703, the terminal device receives the first type information from the network device at the first target resource, and receives the second type information from the network device at the second target resource according to the reference signal in the first type information.

As an example, in the LTE Release 8/9 system, the network device always sends the CRS according to the antenna configuration in the non-MBSFN subframe, and also sends the CRS in the MBSFN domain of the MBSFN subframe. The CRS can be used for downlink channel quality measurement, downlink channel estimation, and downlink time-frequency synchronization. In the NR system, the terminal equipment also needs the network equipment to send reference signals to achieve the purposes of downlink channel quality measurement, downlink channel estimation, and downlink time-frequency synchronization. On the shared resource, the terminal device may receive the second type of information on the second target resource according to the reference signal in the first type of information. That is, the terminal device can complete processes such as downlink channel quality measurement, downlink channel estimation, and downlink time-frequency synchronization on the shared resources through the reference signal in the first type of information. Based on the results of downlink channel quality measurement, downlink channel estimation, and downlink time-frequency synchronization, the second type of information is received at the second target resource. Based on this, the reference signal of the NR system can be reduced or not sent on the shared resources, and the use efficiency of the shared resources can be improved.

Optionally, in S703, the terminal device receives the second configuration information from the network device, and determines the reference signal in the first type of information according to the second configuration information. The second configuration information includes at least one of a cell ID, a downlink system bandwidth, an identifier of a time position for sending a reference signal, and an antenna configuration. Alternatively, the second configuration information includes a frequency location and/or a time location of at least one of PSS, SSS, and PBCH.

Taking the reference signal including the CRS as an example, to obtain the CRS channel in the LTE system, the terminal device needs to obtain at least one of the cell ID in the LTE system, the downlink system bandwidth, the identifier of the time position for sending the reference signal, and the antenna configuration. These information are distributed. In PSS, SSS, PBCH in LTE system. A possible way is that the first type of information includes at least one of PSS, SSS, and PBCH, and the network device can pass the second configuration information to the frequency location and/or time location of at least one of PSS, SSS, and PBCH. It is indicated to the terminal equipment, and the terminal equipment can obtain information such as cell ID, downlink system bandwidth, identification of the time position for sending reference signals, and antenna configuration by reading these channels in the resources occupied by the LTE system in the shared resources. For the information that can be provided by the signal that is not included in the first type of information, the network device directly sends the information provided by the signal to the terminal device through the second configuration information. For example, the first type of information includes PSS and SSS, but does not include PBCH, and the second configuration information may include frequency domain locations and/or time domain locations of PSS and SSS. And the second configuration information may further include downlink system bandwidth and antenna configuration. In this way, the terminal device can read the PSS and the SSS according to the frequency domain position and/or the time domain position of the PSS and the SSS, so as to obtain the cell ID and the downlink system bandwidth. And the terminal device acquires the downlink system bandwidth and antenna configuration through the second configuration information. With this information, the terminal device can receive the CRS in the first type of information. Another possible way is that the terminal device directly obtains the information through the second configuration information, that is, the network device can directly use information such as cell ID, downlink system bandwidth, identifier of the time position for sending the reference signal, and antenna configuration as the second configuration information is sent to the terminal device. Therefore, the terminal device can receive the CRS in the first type of information.

Optionally, the target resource further includes a third target resource on the exclusive resource. Exclusive resources are resources exclusively used by the NR system. The third target resource is used to send or receive the second type of information. In S703, the terminal device receives the second type information from the network device at the third target resource according to the reference signal in the second type information.

On the shared resource, the terminal device can complete the processes of the shared resource uplink and downlink channel quality measurement, downlink channel estimation, downlink time-frequency synchronization and other processes through the reference signal in the first type of information. On the exclusive resource, the terminal equipment can complete the downlink channel quality measurement, downlink channel estimation, downlink time-frequency synchronization and other processes through the reference signal in the NR system. On the shared resources, reference signals used for downlink channel quality measurement, downlink channel estimation, downlink time-frequency synchronization, etc. in the NR system can be eliminated, thereby improving the utilization efficiency of system resources.

FIG. 8 is a schematic communication diagram of still another signal transmission method provided by an embodiment of the present invention.

S801: The terminal device determines a target resource for transmitting target information communicated with the network device. For a specific description, reference may be made to the description in S301 above, which will not be repeated here.

S802: The network device determines a target resource for transmitting target information communicated with the terminal device. For a specific description, reference may be made to the description in S302 above, which will not be repeated here.

S803: The terminal device sends the target information to the network device at the target resource. The target information includes first type information and second type information. The first type of information is part of the information type in the LTE system, and the second type of information is the information type in the NR system. For a specific description, reference may be made to the description in S303 above, which will not be repeated here.

Optionally, the first type of information includes at least one type of preprocessing-free information in the LTE system. Preprocessing-free information refers to information that the terminal device does not need to perform DFT preprocessing on before sending.

As an example, in the LTE system, the process of processing the PUSCH signal includes a preprocessing (TransformPrecoder), and the processing process is as follows:

个组，每个组对应一个SC-FDMA符号，按照如下预处理过程对每个组进行处理。Divide the digitally modulated M _symb symbols into

Each group corresponds to one SC-FDMA symbol, and each group is processed according to the following preprocessing process.

代表PUSCH的带宽包括多少个RB的频率宽度，

代表一个RB内包括的子载波的数目。Corresponds to the output symbols z(0),...,z(M _symb -1). in,

Represents the frequency width of how many RBs the bandwidth of PUSCH includes,

Represents the number of subcarriers included in one RB.

Not all LTE uplink signals need to go through this preprocessing process. For example, PUCCH in LTE has multiple formats, such as LTE PUCCH format 1/1a/1b/2/2a/2b/3/4/5, where the terminal device is sending PUCCH format 1/1a/1b/2/2a/ The uplink signal does not need to be preprocessed before 2b. The uplink control information transmitted on PUCCH format 1/1a/1b/2/2a/2b is as follows:

-Format 1a is used for 1-bit hybrid ARQ acknowledgement command (Hybird Auto Repeat-request Acknowledgement, HARQ-ACK), or 1-bit HARQ-ACK and uplink scheduling request SR;

-Format 1b is used for 2-bit HARQ-ACK, or 2-bit HARQ-ACK and uplink scheduling request SR, or no more than 4-bit HARQ-ACK in channel selection mode;

-Format 1 is used for uplink scheduling request SRS;

-Format 2 is used for channel state information (Channel-state Information, CSI) feedback without HARQ-ACK, or feedback of CSI and HARQ-ACK under extended CP;

-Format 2a is used for 1-bit HARQ-ACK and CSI feedback under normal CP;

-Format 2b is used for 2-bit HARQ-ACK and CSI feedback under normal CP.

In addition, the terminal equipment in the LTE system also does not need to perform the DFT preprocessing process before sending the PRACH signal and the SRS signal.

Restricting the first type of information to the information that does not require DFT preprocessing on the information before sending can save a large amount of data processing and computation on the terminal equipment. Compared with the terminal equipment, it supports all information types of LTE and information of the NR system. For the type of dual-mode terminal equipment, the cost and complexity of the terminal equipment can be greatly saved. At the same time, the preprocessing-free information sent by the terminal device may be able to multiplex shared resources with the processing-free information sent by the LTE terminal device in the LTE system through code division or frequency division, so as to improve the use efficiency of the shared resources.

Optionally, the preprocessing-free information includes at least one of the following: SRS parameter configuration information, configuration information of at least one of PUCCH formats 1/1a/1b/2/2a/2b, and DMRS configuration information corresponding to uplink data. At S801, a terminal device receives third configuration information from a network device, and determines the first target resource included in the first transmission time interval according to the third configuration information. The third configuration information includes at least one of the following: SRS parameter configuration information, configuration information of at least one of PUCCH formats 1/1a/1b/2/2a/2b, and DMRS configuration information corresponding to uplink data.

As an example, the first type of information sent by the terminal device includes preprocessing-free information. The terminal device needs to determine the first target resource before sending the first type of information. The preprocessing-free information includes SRS, at least one of PUCCH formats 1/1a/1b/2/2a/2b, DMRS corresponding to uplink data, and the like. Therefore, the terminal device needs to obtain the first target resource for sending the preprocessing-free information through the third configuration information. If the preprocessing-free information includes SRS, the third configuration information includes SRS parameter configuration information, specifically including subframe configuration, frequency position, cyclic shift value, comb position and the like for sending the SRS. If the preprocessing-free information includes PUCCH format 1, the third configuration information includes the transmission period, cyclic shift value, superimposed orthogonal code index, frequency position, and the like of PUCCH format 1.

Optionally, the first type of information includes at least one type of code division multiplexing information in the LTE system. The code division multiplexing information is information for multiplexing the same time and frequency resources by multiple terminal devices by means of code division multiple access.

As an example, in the LTE system, the PUCCH formats 1/1a/1b/2/2a/2b/3/5 can all use the code division method to multiplex the same time and frequency resources for multiple terminal devices. Alternatively, the PRACH channel and the SRS signal in the LTE system can also multiplex the same time and frequency resources for multiple terminal devices in a code division manner.

Taking PUCCH format 3 as an example, the resources of one RB occupied by one PUCCH format 3 can be multiplexed by code division multiplexing HARQ-ACK and other uplink control information sent by five terminal devices. If only two terminal devices in the LTE system send PUCCH format 3 on the resource, the uplink control channel capacity on the resource is actually not full. At this time, if the terminal device that sends the first type information and the second type information sends the PUCCH format 3 on the resource, the resource utilization efficiency of the PUCCH can be improved. That is, the first type of information includes PUCCH format 3.

Restricting the first type of information to multiple terminal devices that can reuse the same time and frequency resource information in a code-division manner, so that some of the resources allocated to the LTE system on the shared resources can pass the same time and frequency resources. When it is not reused by LTE terminal equipment, the multiplexing terminal equipment sends uplink information, which can flexibly adjust the demand for dynamic changes in the proportion of LTE and NR services, and improve the efficiency of system resource use.

Optionally, in S803, the terminal device determines the first type of information to be sent within the second transmission time interval in the candidate information set according to the first indication information. Optionally, in S803, the network device sends the first indication information to the terminal device. The first indication information is used to indicate to the terminal device alternative information to be sent at the second transmission time interval. Alternative information is information in a set of alternative information. The set of candidate information includes at least one configuration information of the first type of information and at least one configuration information of the second type of information. The first indication information is control information corresponding to the second transmission time interval.

As an example, the first type of information includes PUCCH as an example. The network device may configure N1 uplink control channel resources of the LTE system and N2 uplink control channel resources of the NR system for the terminal device, where N1 and N2 are both positive integers. The network device can instruct the terminal device to send uplink control information on one uplink control channel in the uplink control channel resource set consisting of the uplink control channel resources of N1 LTE systems and the uplink control channel resources of N2 NR systems through the information type indicator signal. . The terminal device receives the first indication information sent by the network device, and determines the uplink control channel resource for sending the target information according to the first indication information. If the uplink control channel resource used to send the target information is one of the uplink control channel resources of N1 LTE systems, the target information is the first type of information; if the uplink control channel resource used to send the target information is N2 NR systems one of the uplink control channel resources, the target information is the second type of information. Taking the candidate signal set including the resource configuration information of PUCCH format 3 in the LTE system and the resource configuration information of the uplink control channel in the NR system as an example, in the second transmission time interval, the terminal device according to the PUCCH format 3 in the LTE system. Whether the resource configuration information sends the uplink control information or sends the uplink control information according to the resource configuration information of the uplink control channel in the NR system is indicated by the first indication information. The first indication information is control information corresponding to the second transmission time interval. For example, when the uplink control information capacity of the resource corresponding to the resource configuration information of PUCCH format 3 in the above-mentioned LTE system is not used up, the first indication information may instruct the terminal device to follow the PUCCH format in the LTE system at the second transmission time interval. The resource configuration information of 3 sends uplink control information. When the uplink control information capacity of the resource corresponding to the resource configuration information of PUCCH format 3 in the above-mentioned LTE system has been used up, the first indication information may instruct the terminal device to follow the resource configuration of the uplink control channel in the NR system at the second transmission time interval information to send uplink control information. Through this method, the resource utilization efficiency of the PUCCH in the LTE system can be improved.

Optionally, in S303, the terminal device sends capability indication information to the network device. The capability indication information is used to indicate that the terminal device can send or receive the first type of information.

As an example, among all the terminal devices that communicate with the network device, only some of the terminal devices support the transmission of the first type of information and the second type of information to communicate with the network device at the same time as the terminal device provided in the embodiment of the present invention, and others The terminal device does not support communicating with the network device by transmitting the first type of information. The terminal device that simultaneously supports the transmission of the first type of information and the second type of information and communicates with the network device is mainly used to meet the requirement of flexibly adjusting the dynamic change of the service ratio between the LTE system and the NR system during the evolution from the LTE system to the NR system. A terminal device that does not support transmitting the first type of information to communicate with the network device and a terminal device that does not support transmitting the second type of information to communicate with the network device can keep the cost and complexity at a reasonable level.

Therefore, the terminal device supporting the transmission of the first type information and the second type information needs to send capability indication information to the network device to indicate that the terminal device can communicate with the network device by transmitting the first type information and the second type information. After receiving the capability indication information, the network device can schedule the terminal device to communicate with the network device through the first type of information before reconfiguring the LTE parameters to adapt to the dynamic change of the service ratio between the LTE system and the NR system until the LTE The radio resource ratio of the two corresponding to the configuration parameters of the two matches the service ratio of the two.

FIG. 9 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.

The terminal device includes a processing unit 901 and a transmission unit 902 .

The determining unit 901 is configured to determine a target resource for transmitting target information communicated with a network device.

Optionally, the determining unit 901 is further configured to determine the second target resource included in the first transmission time interval according to the reference information in the first type information.

Optionally, the determining unit 901 is further configured to acquire the reference information according to the first configuration information.

Optionally, the determining unit 901 is further configured to determine the first target resource included in the first transmission time interval according to the third configuration information.

For a specific description, reference may be made to the descriptions in S301, S701, and S801 above, which are not repeated here.

The transmission unit 902 is configured to send the target information to the network device or receive the target information from the network device at the target resource. The target information includes first type information and second type information. The first type of information is part of the information type in the LTE system, and the second type of information is the information type in the NR system.

Optionally, the transmitting unit 902 is further configured to receive the first type information at the first target resource, and receive the second type information at the second target resource according to the reference signal in the first type information.

Optionally, the transmission unit 902 is further configured to determine the reference signal according to the second configuration information.

Optionally, the transmitting unit 902 is further configured to receive the second type information in the third target resource according to the reference signal in the second type information.

Optionally, the transmission unit 902 is further configured to determine the first type of information to be sent within the second transmission time interval in the candidate information set according to the first indication information.

Optionally, the transmission unit 902 is further configured to send capability indication information to the network device.

For a specific description, reference may be made to the descriptions in S303, S703, and S803 above, which will not be repeated here.

FIG. 10 is a schematic structural diagram of another terminal device according to an embodiment of the present invention.

The terminal device includes a processor 1001 and a transmitter/receiver 1002 .

The processor 1001 is configured to determine a target resource for transmitting target information communicated with the network device.

Optionally, the processor 1001 is further configured to determine the second target resource included in the first transmission time interval according to the reference information in the first type of information.

Optionally, the processor 1001 is further configured to acquire the reference information according to the first configuration information.

Optionally, the processor 1001 is further configured to determine the first target resource included in the first transmission time interval according to the third configuration information.

For a specific description, reference may be made to the descriptions in S301, S701, and S801 above, which are not repeated here.

The transmitter/receiver 1002 is used to transmit target information to or receive target information from the network device at the target resource. The target information includes first type information and second type information. The first type of information is part of the information type in the LTE system, and the second type of information is the information type in the NR system.

Optionally, the transmitter/receiver 1002 is further configured to receive the first type information at the first target resource, and receive the second type information at the second target resource according to the reference signal in the first type information.

Optionally, the transmitter/receiver 1002 is further configured to determine the reference signal according to the second configuration information.

Optionally, the transmitter/receiver 1002 is further configured to receive the second type information in the third target resource according to the reference signal in the second type information.

Optionally, the transmitter/receiver 1002 is further configured to determine the first type of information to be sent within the second transmission time interval in the candidate information set according to the first indication information.

Optionally, the transmitter/receiver 1002 is further configured to send capability indication information to the network device.

For a specific description, reference may be made to the descriptions in S303, S703, and S803 above, which will not be repeated here.

FIG. 11 is a schematic structural diagram of a network device according to an embodiment of the present invention.

The network device includes a determination unit 1101 and a transmission unit 1102 .

The determining unit 1101 is configured to determine a target resource for transmitting target information communicated with the terminal device. For a specific description, reference may be made to the descriptions in S302, S702, and S802 above, which will not be repeated here.

The transmission unit 1102 is configured to send the target information to the terminal device or receive the target information from the terminal device at the target resource. The target information includes first type information and second type information. The first type of information is part of the information type in the LTE system, and the second type of information is the information type in the NR system.

Optionally, the transmission unit 1102 is further configured to send configuration information to the terminal device.

Optionally, the transmitting unit 1102 is further configured to send the first indication information to the terminal device.

Optionally, the transmitting unit 1102 is further configured to receive capability indication information sent by the terminal device.

For a specific description, reference may be made to the descriptions in S303, S703, and S803 above, which will not be repeated here.

FIG. 12 is a schematic structural diagram of another network device according to an embodiment of the present invention.

The network device includes a processor 1201 and a transmitter/receiver 1202 .

The processor 1201 is configured to determine a target resource for transmitting target information communicated with the terminal device. For a specific description, reference may be made to the descriptions in S302, S702, and S802 above, which will not be repeated here.

The transmitter/receiver 1202 is used to transmit target information to or receive target information from the terminal device at the target resource. The target information includes first type information and second type information. The first type of information is part of the information type in the LTE system, and the second type of information is the information type in the NR system.

Optionally, the transmitter/receiver 1202 is further configured to send configuration information to the terminal device.

Optionally, the transmitter/receiver 1202 is further configured to send the first indication information to the terminal device.

Optionally, the transmitter/receiver 1202 is further configured to receive capability indication information sent by the terminal device.

For a specific description, reference may be made to the descriptions in S303, S703, and S803 above, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. For example, the above receiver and transmitter may be physically integrated on one module, such as a transceiver or an antenna.

Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be implemented by instructing relevant hardware through a computer program, and the program can be stored in a computer-readable storage medium. During execution, the processes of the embodiments of the above-mentioned methods may be included. The storage medium may be a magnetic disk, an optical disk, a read-only memory (Read-Only Memory, ROM), or a random access memory (Random Access Memory, RAM) or the like.

In a word, the above descriptions are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (35)

1. A method for signal transmission, wherein the method comprises: The terminal device determines the target resource for transmitting the target information communicated with the network device; The terminal device sends or receives the target information at the target resource; Wherein, the target information includes first type information and second type information, the first type information is a part of the information type in the LTE system, and the second type information is the information type in the first wireless communication system, the first wireless communication system is different from the LTE system; When the terminal device sends the target information on the target resource, the information types in the LTE system include PUCCH, PRACH, SRS, and PUSCH; when the terminal device receives the target information on the target resource In the case of information, the information types in the LTE system include PSS, SSS, PBCH, CRS, PRS, CSI-RS, PCFICH, PDCCH, PDSCH; Wherein, the target resource includes a first target resource and a second target resource on the shared resource; when the terminal device sends the target information on the target resource, the first target resource is used to send the target information. the first type of information, the second target resource is used to send the second type of information; when the terminal device receives the target information at the target resource, the first target resource is used to receive the first type information, and the second target resource is used to receive the second type information; The first target resource and the second target resource are mutually orthogonal resources; the shared resource is a resource that supports multiplexing of the LTE system and the first wireless communication system by means of time division and/or frequency division. 2. The method according to claim 1, wherein the terminal device determines a target resource for transmitting target information communicated with the network device, comprising: The terminal device determines the second target resource included in the first transmission time interval according to the reference information in the first type information; The reference information includes at least one of the following: a CFI value indicated by the PCFICH of the first transmission time interval; a time identifier of the first transmission time interval in the LTE system; where the first transmission time interval is located The value of the downlink system bandwidth indicated by the PBCH in the radio frame of , where the radio frame is a radio frame of the LTE system. 3. The method of claim 2, wherein the terminal device determines a target resource for transmitting target information communicated with the network device, further comprising: acquiring, by the terminal device, the reference information according to the first configuration information; The first configuration information is information sent by the network device for the terminal device, and the first configuration information includes a cell ID, a downlink system bandwidth, an identifier of a time position for sending the reference information, an antenna configuration At least one of ; or, the first configuration information includes a frequency position and/or a time position of at least one of PSS, SSS, and PBCH. 4. The method according to any one of claims 1 to 3, wherein the terminal device receiving the target information at the target resource comprises: receiving, by the terminal device, the first type of information at the first target resource; The terminal device receives the second type information at the second target resource according to the reference signal in the first type information. 5. The method according to claim 4, wherein the terminal device receives the second type information in the second target resource according to the reference signal in the first type information, comprising: determining, by the terminal device, a reference signal in the first type of information according to the second configuration information; The second configuration information is information sent by the network device for the terminal device, and the second configuration information includes a cell ID, a downlink system bandwidth, an identifier of a time position for sending the reference signal, and an antenna configuration or, the second configuration information includes a frequency location and/or a time location of at least one of PSS, SSS, and PBCH. 6. The method of claim 4, wherein: The target resource further includes a third target resource on an exclusive resource, the exclusive resource is a resource exclusively used by the first wireless communication system, and the third target resource is used for sending or receiving the second type information; The terminal device receiving the target information at the target resource includes: the terminal device receiving the second type information at the third target resource according to a reference signal in the second type information. 7. The method according to any one of claims 1 to 3, wherein: The first type of information includes at least one type of preprocessing-free information in the LTE system, and the terminal device does not need to perform DFT preprocessing on the transmitted information before sending the preprocessing-free information. 8. The method according to any one of claims 1 to 3, wherein: The first type of information includes at least one type of preprocessing-free information in the LTE system, and the terminal device does not need to perform DFT preprocessing on the transmitted information before sending the preprocessing-free information; The preprocessing-free information includes at least one of the following: SRS parameter configuration information, configuration information of at least one of PUCCH formats 1/1a/1b/2/2a/2b, and DMRS configuration information corresponding to uplink data; The terminal device determines the target resource for transmitting the target information communicated with the network device, including: determining, by the terminal device, the first target resource included in the first transmission time interval according to the third configuration information; The third configuration information is information sent by the network device for the terminal device, and the third configuration information includes at least one of the following: SRS parameter configuration information, PUCCH format 1/1a/1b/2/2a Configuration information of at least one format in /2b, and DMRS configuration information corresponding to uplink data. 9. The method according to any one of claims 1 to 3, wherein: The first type of information includes at least one type of code division multiplexing information in the LTE system, where the code division multiplexing information is information that multiplexes the same time and frequency resources for multiple terminal devices by means of code division multiple access. 10. The method according to claim 9, wherein the terminal device sends the target information in the target resource, comprising: The terminal device determines the first type of information to be sent within the second transmission time interval in an alternative information set according to the first indication information, where the alternative information set includes at least one configuration information of the first type of information and at least one Configuration information of the second type of information, where the first indication information is control information corresponding to the second transmission time interval. 11. The method according to any one of claims 1, 2, 3, 5, 6 or 10, wherein the method further comprises: The terminal device sends capability indication information to the network device, where the capability indication information is used to indicate that the terminal device can send or receive the first type of information. 12. A method for signal transmission, characterized in that the method comprises: The network device determines the target resource for transmitting the target information communicated with the terminal device; The network device sends or receives the target information at the target resource; Wherein, the target information includes first type information and second type information, the first type information is a part of the information type in the LTE system, and the second type information is the information type in the first wireless communication system, the first wireless communication system is different from the LTE system; In the case that the network device sends the target information in the target resource, the information types in the LTE system include PSS, SSS, PBCH, CRS, PRS, CSI-RS, PCFICH, PDCCH, and PDSCH; When the network device receives the target information in the target resource, the information types in the LTE system include PUCCH, PRACH, SRS, and PUSCH; Wherein, the target resource includes a first target resource and a second target resource on the shared resource; in the case that the network device sends the target information on the target resource, the first target resource is used to send the target information. the first type of information, the second target resource is used to send the second type of information; when the network device receives the target information at the target resource, the first target resource is used to receive the first type information, and the second target resource is used to receive the second type information; The first target resource and the second target resource are mutually orthogonal resources; the shared resource is a resource that supports multiplexing of the LTE system and the first wireless communication system by means of time division and/or frequency division. 13. The method of claim 12, wherein the network device sending the target information on the target resource comprises: The network device sends configuration information to the terminal device, where the configuration information includes at least one of first configuration information, second configuration information, and third configuration information; The first configuration information includes at least one of a cell ID, downlink system bandwidth, an identifier of a time position for sending reference information, and an antenna configuration; or, the first configuration information includes at least one of PSS, SSS, and PBCH. the frequency location and/or time location of an item; The second configuration information includes at least one of a cell ID, a downlink system bandwidth, an identifier of a time position for sending a reference signal, and an antenna configuration; or, the second configuration information includes at least one of PSS, SSS, and PBCH frequency location and/or time location; The third configuration information includes at least one of the following: SRS parameter configuration information, configuration information of at least one of PUCCH formats 1/1a/1b/2/2a/2b, and DMRS configuration information corresponding to uplink data. 14. The method of claim 12 or 13, wherein: The first type of information includes at least one type of preprocessing-free information in the LTE system, where the preprocessing-free information is information that does not need to be preprocessed by DFT before being sent. 15. The method of claim 12 or 13, wherein: The first type of information includes at least one type of code division multiplexing information in the LTE system, where the code division multiplexing information is information that multiplexes the same time and frequency resources for multiple terminal devices by means of code division multiple access. 16. The method of claim 15, wherein the network device sending the target information at the target resource comprises: The network device sends first indication information to the terminal device, where the first indication information is used to indicate to the terminal device alternative information to be sent at the second transmission time interval, where the alternative information is alternative information The information in the set, the candidate information set includes at least one configuration information of the first type of information and at least one configuration information of the second type of information. 17. The method of any one of claims 12, 13 or 16, wherein the method further comprises: The network device receives capability indication information sent by the terminal device, where the capability indication information is used to indicate that the terminal device can send or receive the first type of information. 18. A terminal device, wherein the terminal device comprises: a determining unit, configured to determine a target resource for transmitting target information communicated with the network device; a transmission unit, configured to send or receive the target information at the target resource; Wherein, the target information includes first type information and second type information, the first type information is a part of the information type in the LTE system, and the second type information is the information type in the first wireless communication system, the first wireless communication system is different from the LTE system; In the case that the transmission unit is used to send the target information on the target resource, the information types in the LTE system include PUCCH, PRACH, SRS, and PUSCH; the transmission unit is used to send the target information on the target resource. In the case of receiving the target information, the information types in the LTE system include PSS, SSS, PBCH, CRS, PRS, CSI-RS, PCFICH, PDCCH, PDSCH; Wherein, the target resource includes a first target resource and a second target resource on a shared resource; when the transmission unit is used for sending the target information on the target resource, the first target resource is used for sending the first type of information, the second target resource is used to send the second type of information; in the case that the transmission unit is used to receive the target information at the target resource, the first target The resource is used to receive the first type of information, and the second target resource is used to receive the second type of information; The first target resource and the second target resource are mutually orthogonal resources; the shared resource is a resource that supports multiplexing of the LTE system and the first wireless communication system by means of time division and/or frequency division. 19. The terminal device according to claim 18, wherein the determining unit is further configured to: determining the second target resource included in the first transmission time interval according to the reference information in the first type of information; The reference information includes at least one of the following: a CFI value indicated by the PCFICH of the first transmission time interval; a time identifier of the first transmission time interval in the LTE system; where the first transmission time interval is located The value of the downlink system bandwidth indicated by the PBCH in the radio frame of , where the radio frame is a radio frame of the LTE system. 20. The terminal device according to claim 19, wherein the determining unit is further configured to: obtaining the reference information according to the first configuration information; The first configuration information is information sent by the network device for the terminal device, and the first configuration information includes a cell ID, a downlink system bandwidth, an identifier of a time position for sending the reference information, an antenna configuration At least one of ; or, the first configuration information includes a frequency position and/or a time position of at least one of PSS, SSS, and PBCH. 21. The terminal device according to any one of claims 18 to 20, wherein the transmission unit is further configured to: receiving the first type of information at the first target resource; The second type of information is received at the second target resource according to the reference signal in the first type of information. 22. The terminal device according to claim 21, wherein the transmission unit is further configured to: determining the reference signal in the first type of information according to the second configuration information; The second configuration information is information sent by the network device for the terminal device, and the second configuration information includes a cell ID, a downlink system bandwidth, an identifier of a time position for sending the reference signal, and an antenna configuration or, the second configuration information includes a frequency location and/or a time location of at least one of PSS, SSS, and PBCH. 23. The terminal device of claim 21, wherein: The target resource further includes a third target resource on an exclusive resource, the exclusive resource is a resource exclusively used by the first wireless communication system, and the third target resource is used for sending or receiving the second type information; The transmission unit is further configured to: receive the second type information in the third target resource according to the reference signal in the second type information. 24. The terminal device according to any one of claims 18 to 20, wherein: The first type of information includes at least one type of preprocessing-free information in the LTE system, and the terminal device does not need to perform DFT preprocessing on the transmitted information before sending the preprocessing-free information. 25. The terminal device according to any one of claims 18 to 20, wherein: The first type of information includes at least one type of preprocessing-free information in the LTE system, and the terminal device does not need to perform DFT preprocessing on the transmitted information before sending the preprocessing-free information; The preprocessing-free information includes at least one of the following: SRS parameter configuration information, configuration information of at least one of PUCCH formats 1/1a/1b/2/2a/2b, and DMRS configuration information corresponding to uplink data; The determining unit is also used for: determining the first target resource included in the first transmission time interval according to the third configuration information; The third configuration information includes at least one of the following: SRS parameter configuration information, configuration information of at least one of PUCCH formats 1/1a/1b/2/2a/2b, and DMRS configuration information corresponding to uplink data. 26. The terminal device according to any one of claims 18 to 20, wherein: The first type of information includes at least one type of code division multiplexing information in the LTE system, where the code division multiplexing information is information that multiplexes the same time and frequency resources for multiple terminal devices by means of code division multiple access. 27. The terminal device according to claim 26, wherein the transmission unit is further configured to: The first type of information to be sent within the second transmission time interval is determined in an alternative information set according to the first indication information, where the alternative information set includes at least one configuration information of the first type of information and at least one second type of information configuration information, the first indication information is control information corresponding to the second transmission time interval. 28. The terminal device according to any one of claims 18, 19, 20, 22, 23 or 27, wherein the transmission unit is further configured to: Send capability indication information to the network device, where the capability indication information is used to indicate that the terminal device can send or receive the first type of information. 29. A network device, characterized in that the network device comprises: a determining unit, configured to determine a target resource for transmitting target information communicated with the terminal device; a transmission unit, configured to send or receive the target information at the target resource; Wherein, the target information includes first type information and second type information, the first type information is a part of the information type in the LTE system, and the second type information is the information type in the first wireless communication system, the first wireless communication system is different from the LTE system; When the transmission unit is used to send the target information on the target resource, the information types in the LTE system include PSS, SSS, PBCH, CRS, PRS, CSI-RS, PCFICH, PDCCH, and PDSCH; When the transmission unit is configured to receive the target information on the target resource, the information types in the LTE system include PUCCH, PRACH, SRS, and PUSCH; Wherein, the target resource includes a first target resource and a second target resource on a shared resource; when the transmission unit is used for sending the target information on the target resource, the first target resource is used for sending the first type of information, the second target resource is used to send the second type of information; in the case that the transmission unit is used to receive the target information at the target resource, the first target The resource is used to receive the first type of information, and the second target resource is used to receive the second type of information; The first target resource and the second target resource are mutually orthogonal resources; the shared resource is a resource that supports multiplexing of the LTE system and the first wireless communication system by means of time division and/or frequency division. 30. The network device of claim 29, wherein the transmission unit is further configured to: Sending configuration information for the terminal device, the configuration information includes at least one of a cell ID, a downlink system bandwidth, an identifier of a time position for sending a reference signal, and an antenna configuration; or, the configuration information includes PSS, SSS, PBCH The frequency location and/or the time location of at least one of . 31. The network device of claim 29 or 30, wherein: The first type of information includes at least one type of preprocessing-free information in the LTE system, where the preprocessing-free information is information that does not need to be preprocessed by DFT before being sent. 32. The network device of claim 29 or 30, wherein: The first type of information includes at least one type of code division multiplexing information in the LTE system, where the code division multiplexing information is information that multiplexes the same time and frequency resources for multiple terminal devices by means of code division multiple access. 33. The network device of claim 32, wherein the transmission unit is further configured to: Sending first indication information to the terminal device, where the first indication information is used to indicate to the terminal device alternative information to be sent at the second transmission time interval, where the alternative information is information in an alternative information set , the candidate information set includes at least one configuration information of the first type of information and at least one configuration information of the second type of information. 34. The network device according to claim 29, 30 or 33, wherein the transmission unit is further configured to: Receive capability indication information sent by the terminal device, where the capability indication information is used to indicate that the terminal device can send or receive the first type of information. 35. A communication system, characterized in that the communication system comprises the terminal device according to any one of claims 18-28 and the network device according to any one of claims 29-34.

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