CN108260217B - Information transmission method, device and communication node - Google Patents

Information transmission method, device and communication node Download PDF

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Publication number
CN108260217B
CN108260217B CN201810180673.8A CN201810180673A CN108260217B CN 108260217 B CN108260217 B CN 108260217B CN 201810180673 A CN201810180673 A CN 201810180673A CN 108260217 B CN108260217 B CN 108260217B
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antenna
information
dci
communication node
srs
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CN108260217A (en
Inventor
王瑜新
鲁照华
蒋创新
李儒岳
吴昊
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ZTE Corp
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ZTE Corp
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Priority to PCT/CN2019/077031 priority patent/WO2019170089A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0061—Error detection codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the invention discloses a method, a device and a communication node for information transmission, wherein the method comprises the following steps: the first communication node configures the use of the SRI domain in the downlink control information DCI through signaling or a predefined mode; and the first communication node sends the DCI to a second communication node according to the application of the SRI domain in the DCI, wherein the SRI domain in the DCI carries at least one of antenna information and SRS resource indication information of a measurement reference signal. In the embodiment of the invention, the first communication node can transmit the antenna information to the second communication node, so that the flexible switching of the antenna or the antenna group for transmitting the uplink signal is realized.

Description

Information transmission method, device and communication node
Technical Field
The present invention relates to communications technologies, and in particular, to a method and an apparatus for information transmission, and a communications node.
Background
With the development of communication technology, the demand of data service is increasing, and available low-frequency carriers are also very scarce, so that communication based on high-frequency (30-300 GHz) carriers which are not fully utilized is one of important communication means for solving the problem of future high-speed data communication. The available bandwidth for high frequency carrier communication is large, and efficient high-speed data communication can be provided. However, a great technical challenge faced by high-frequency carrier communication is that the high-frequency signal has very large spatial fading due to the relatively low-frequency signal, and although the high-frequency signal has a problem of spatial fading loss in outdoor communication, more antennas can be generally used due to the reduction of the wavelength of the high-frequency signal, so that the communication can be performed based on beams to compensate for the spatial fading loss.
However, when the number of antennas increases, the cost and power consumption increase due to the fact that each antenna needs to have one set of radio frequency links. Thus, current research is relatively prone to hybrid beamforming, i.e., a radio frequency beam and a digital beam together form the final beam.
In the new radio access technology (New Radio Access Technology, abbreviated as NR), in addition to the first communication node configuring a large number of antennas to form a downlink transmission beam to compensate for spatial fading of high-frequency communication, the second communication node also configuring a large number of antennas to form an uplink transmission beam, where transmission of a Sounding REFERENCE SIGNAL (abbreviated as SRS) is also transmitted in a beam form. For antenna switching transmission of uplink signals, no corresponding implementation scheme exists in the related art.
Disclosure of Invention
The embodiment of the invention provides an information transmission method, an information transmission device and a communication node, which are used for supporting the switching of an antenna for transmitting uplink signals.
The embodiment of the invention provides an information transmission method, which comprises the following steps:
The first communication node configures the use of the SRI domain in the downlink control information DCI through signaling or a predefined mode;
The first communication node sends the DCI to a second communication node according to the application of the SRI domain in the DCI, wherein the SRI domain in the DCI carries at least one of antenna information and SRS resource indication information of a measurement reference signal;
The antenna information includes information of an antenna or an antenna group used by the second communication node to transmit an uplink signal, and the SRS resource indication information is used to indicate SRS resources used by the second communication node to transmit a physical uplink shared channel PUSCH.
The embodiment of the invention also provides an information transmission method, which comprises the following steps:
The first communication node configures antenna information in a predefined manner;
the first communication node indicates the antenna information through the existing signaling in the downlink control information DCI, or indicates the antenna information through the Cyclic Redundancy Check (CRC) of the DCI, and sends the DCI to the second communication node;
the antenna information includes information of an antenna or an antenna group used by the second communication node to transmit uplink signals.
The embodiment of the invention also provides an information transmission method, which comprises the following steps:
the second communication node determines the purpose of the SRI domain of the measurement reference signal resource identifier in the downlink control information DCI through signaling or a predefined mode;
The second communication node receives the DCI, analyzes information carried by the SRI domain according to the application of the SRI domain in the DCI, and acquires at least one of antenna information and SRS resource indication information of a measurement reference signal;
The antenna information includes information of an antenna or an antenna group used by the second communication node to transmit an uplink signal, and the SRS resource indication information is used to indicate SRS resources used by the second communication node to transmit a physical uplink shared channel PUSCH.
The embodiment of the invention also provides an information transmission method, which comprises the following steps:
The second communication node receives DCI sent by the first communication node, and acquires antenna information according to the existing signaling in the DCI or acquires the antenna information through the CRC of the DCI according to a predefined mode;
the second communication node configures an antenna or an antenna group according to the antenna information;
the antenna information includes information of an antenna or an antenna group used by the second communication node to transmit uplink signals.
The embodiment of the invention also provides an information transmission device, which comprises:
The first configuration module is used for configuring the application of the SRI domain in the downlink control information DCI through signaling or a predefined mode;
a first sending module, configured to send, according to an application of an SRI field in the DCI, the DCI to a second communication node through at least one of antenna information and measurement reference signal SRS resource indication information carried by the SRI field in the DCI;
The antenna information includes information of an antenna or an antenna group used by the second communication node to transmit an uplink signal, and the SRS resource indication information is used to indicate SRS resources used by the second communication node to transmit a physical uplink shared channel PUSCH.
The embodiment of the invention also provides an information transmission device, which comprises:
A second configuration module for configuring antenna information in a predefined manner;
a second sending module, configured to instruct, by using an existing signaling in downlink control information DCI, the antenna information, or instruct, by using a Cyclic Redundancy Check (CRC) code of the DCI, the antenna information, and send the DCI to a second communication node;
the antenna information includes information of an antenna or an antenna group used by the second communication node to transmit uplink signals.
The embodiment of the invention also provides an information transmission device, which comprises:
a third determining module, configured to determine, by signaling or in a predefined manner, a use of an SRI domain in downlink control information DCI;
a third receiving module, configured to receive the DCI, analyze information carried in the SRI domain according to a use of a measurement reference signal resource identifier SRI domain in the DCI, and learn at least one of antenna information and SRS resource indication information;
The antenna information includes information of an antenna or an antenna group used by the second communication node to transmit an uplink signal, and the SRS resource indication information is used to indicate SRS resources used by the second communication node to transmit a physical uplink shared channel PUSCH.
The embodiment of the invention also provides an information transmission device, which comprises:
a fourth receiving module, configured to receive downlink control information DCI sent by a first communication node, and obtain antenna information according to existing signaling in the DCI according to a predefined manner, or obtain the antenna information through CRC of the DCI;
a fourth configuration module, configured to configure an antenna or an antenna group according to the antenna information;
the antenna information includes information of an antenna or an antenna group used by the second communication node to transmit uplink signals.
The embodiment of the invention also provides a communication node, which comprises:
a processor;
a memory for storing the processor-executable instructions;
transmission means for performing information transmission-reception communication according to control of the processor;
wherein the processor is configured to perform the following operations:
the method comprises the steps of configuring the application of a measurement reference signal resource identifier SRI domain in downlink control information DCI through signaling or a predefined mode;
According to the application of the SRI domain in the DCI, transmitting the DCI to a second communication node through at least one of antenna information and SRS resource indication information of a measurement reference signal carried by the SRI domain in the DCI;
The antenna information includes information of an antenna or an antenna group used by the second communication node to transmit an uplink signal, and the SRS resource indication information is used to indicate SRS resources used by the second communication node to transmit a physical uplink shared channel PUSCH.
The embodiment of the invention also provides a communication node, which comprises:
a processor;
a memory for storing the processor-executable instructions;
transmission means for performing information transmission-reception communication according to control of the processor;
wherein the processor is configured to perform the following operations:
Configuring antenna information in a predefined manner;
indicating the antenna information through the signaling existing in the DCI or indicating the antenna information through the Cyclic Redundancy Check (CRC) code of the DCI, and sending the DCI to a second communication node;
the antenna information includes information of an antenna or an antenna group used by the second communication node to transmit uplink signals.
The embodiment of the invention also provides a communication node, which comprises:
a processor;
a memory for storing the processor-executable instructions;
transmission means for performing information transmission-reception communication according to control of the processor;
wherein the processor is configured to perform the following operations:
determining the purpose of the SRI domain of the measurement reference signal resource identifier in the downlink control information DCI through signaling or a predefined mode;
Receiving the DCI, analyzing information carried by the SRI domain according to the application of the SRI domain in the DCI, and acquiring at least one of antenna information and SRS resource indication information;
the antenna information includes information of an antenna or an antenna group used for sending an uplink signal, and the SRS resource indication information is used for indicating SRS resources used by the second communication node to send a physical uplink shared channel PUSCH.
The embodiment of the invention also provides a communication node, which comprises:
a processor;
a memory for storing the processor-executable instructions;
transmission means for performing information transmission-reception communication according to control of the processor;
wherein the processor is configured to perform the following operations:
Receiving Downlink Control Information (DCI) sent by a first communication node, and acquiring antenna information according to the existing signaling in the DCI or acquiring the antenna information through the CRC of the DCI according to a predefined mode;
Configuring an antenna or an antenna group according to the antenna information;
The antenna information includes information of an antenna or an antenna group for transmitting an uplink signal.
The embodiment of the invention also provides a computer readable storage medium, which stores computer executable instructions for executing the method for transmitting information.
The embodiment of the invention comprises the following steps: the first communication node configures the use of a measurement reference signal resource identifier (SRS resource indicator, abbreviated as SRI) field in downlink control information (Downlink Control Information, abbreviated as DCI) by signaling or a predefined manner; the first communication node sends the DCI to a second communication node according to the application of the SRI domain in the DCI, wherein the SRI domain in the DCI carries at least one of antenna information and SRS resource indication information of a measurement reference signal; the antenna information includes information of an antenna or an antenna group used by the second communication node to transmit an uplink signal, and the SRS resource indication information is used to indicate SRS resources used by the second communication node to transmit a PUSCH. In the embodiment of the invention, the first communication node can transmit the antenna information to the second communication node, so that the flexible switching of the antenna or the antenna group for transmitting the uplink signal is realized.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate and do not limit the application.
Fig. 1 is a flowchart of a method for information transmission according to an embodiment of the present invention (a first scheme applied to a first communication node);
Fig. 2 is a flowchart of a method for information transmission according to an embodiment of the present invention (a first aspect, applied to a second communication node);
fig. 3 is a flowchart of a method for information transmission according to an embodiment of the present invention (a second aspect, applied to a first communication node);
Fig. 4 is a flowchart of a method for information transmission according to an embodiment of the present invention (a second aspect, applied to a second communication node);
Fig. 5 is a schematic diagram of an apparatus for information transmission according to an embodiment of the present invention (a first scheme applied to a first communication node);
fig. 6 is a schematic diagram of an apparatus for information transmission according to an embodiment of the present invention (a first scheme applied to a second communication node);
Fig. 7 is a schematic diagram of an apparatus for information transmission according to an embodiment of the present invention (a second scheme applied to a first communication node);
fig. 8 is a schematic diagram of an apparatus for information transmission according to an embodiment of the present invention (a second scheme is applied to a second communication node).
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present application more apparent, embodiments of the present application will be described in detail hereinafter with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be arbitrarily combined with each other.
The steps illustrated in the flowchart of the figures may be performed in a computer system, such as a set of computer-executable instructions. Also, while a logical order is depicted in the flowchart, in some cases, the steps depicted or described may be performed in a different order than presented herein.
In long term evolution (Long Term Evolution, abbreviated LTE), a physical downlink control channel (Physical Downlink Control Channel, abbreviated PDCCH) is used to carry downlink control information (Downlink Control Information, abbreviated DCI), where the DCI may include uplink and downlink scheduling information, and uplink power control information. DCI formats (formats) are classified into DCI formats 0, 1A, 1B, 1C, 1D, 2A, 3a, etc., and later evolved into LTE-a Release 12 (LTE-a Release 12) with the addition of DCI formats 2B, 2C, 2D to support a variety of different applications and transmission modes. A first communication Node, e.g., an evolved Node-B (eNB), may configure a second communication Node device, e.g., a User Equipment (UE), with downlink control information, or the second communication Node device accepts configuration of a higher layer (HIGHER LAYERS), also referred to as configuring the UE with higher layer signaling.
A Sounding REFERENCE SIGNAL (SRS) is a signal used between the second communication node device and the first communication node to measure radio channel Information (CSI). In a long term evolution system, a UE periodically transmits an uplink SRS on a last data symbol of a transmission subframe according to parameters such as a frequency band, a frequency domain position, a sequence cyclic shift, a period, a subframe offset, and the like indicated by an eNB. And the eNB judges the CSI of the UE uplink according to the received SRS, and performs operations such as frequency domain selection scheduling, closed loop power control and the like according to the obtained CSI.
In the study of LTE-A Release 10 (LTE-A Release 10) it was proposed: in uplink communication, non-precoded SRS should be used, namely: an antenna-specific SRS precodes a reference signal (De Modulation REFERENCE SIGNAL, abbreviated as DMRS) for demodulation of a Physical Uplink shared channel (PUSCH SHARED CHANNEL). The first communication node can estimate the original uplink CSI by receiving the non-precoded SRS, and the precoded DMRS cannot enable the first communication node to estimate the original uplink CSI. At this time, when UEs transmit non-precoded SRS using multiple antennas, SRS resources required for each UE increase, which results in a decrease in the number of UEs that can be multiplexed simultaneously in the system. The UE may send SRS through two trigger modes, namely higher layer signaling (also referred to as triggering through TRIGGER TYPE 0) or downlink control information (also referred to as triggering through TRIGGER TYPE 1), and the SRS is triggered based on the higher layer signaling and is triggered based on the downlink control information and is aperiodic. The method for aperiodically transmitting the SRS is added in the LTE-A Release 10, so that the utilization rate of SRS resources is improved to a certain extent, and the flexibility of resource scheduling is improved.
In the embodiment of the invention, the first communication node can transmit the antenna information to the second communication node, so as to realize flexible switching of the antenna or the antenna group used by the second communication node for sending the uplink signal.
In the embodiment of the invention, two schemes can be adopted to realize that the first communication node transmits the antenna information to the second communication node.
The first scheme configures the use of the SRI field in the DCI through signaling or a predefined manner, so that the antenna information can be carried through the SRI field in the DCI.
As shown in fig. 1, the method for transmitting information according to the embodiment of the present invention is applied to a first communication node, and includes:
step 101, a first communication node configures the purpose of an SRI domain in DCI through signaling or a predefined mode;
step 102, according to the use of the SRI field in the DCI, the first communication node sends the DCI to a second communication node through at least one of antenna information and SRS resource indication information carried by the SRI field in the DCI;
The antenna information includes information of an antenna or an antenna group used by the second communication node to transmit an uplink signal, and the SRS resource indication information is used to indicate SRS resources used by the second communication node to transmit a physical uplink shared channel PUSCH.
In the embodiment of the invention, the first communication node can transmit the antenna information to the second communication node, so that the flexible switching of the antenna or the antenna group for transmitting the uplink signal is realized.
In one implementation manner, the first communication node may be a base station of a macrocell, a base station or a transmission node of a small cell (SMALL CELL), a transmitting node in a high-frequency communication system, a transmitting node in an internet of things system, and the like, and the second communication node may be a node in a communication system such as a user terminal (UE), a mobile phone, a portable device, an automobile, and the like.
The uplink signal may be an SRS, or an uplink demodulation reference signal, or an uplink signal for random access, or a PUSCH signal, or a phase tracking reference signal.
The information of the antenna or the antenna group may be identification information of the antenna or the antenna group, port information of the antenna or the antenna group, or beam identification information corresponding to the antenna or the antenna group.
The SRS resource indication information may be information such as SRS sequence, SRS time-frequency location parameter, etc.
In an embodiment, the first communication node configures the use of the SRI field in the DCI by means of signaling, including:
the first communication node sends radio resource control (Radio Resource Control, abbreviated as RRC) signaling to the second communication node, the RRC signaling being used to configure the use of the SRI domain.
In an embodiment, the use of the SRI field in the DCI includes at least one of: an SRS resource indication for PUSCH transmission configured in codebook mode, an SRS resource indication for PUSCH transmission of physical uplink shared channel configured in non-codebook mode, antenna switching for measurement reference signal SRS, antenna switching for physical uplink shared channel PUSCH;
The SRS resource indication information includes at least one of: SRS resource indication information when PUSCH transmission in codebook mode is configured, SRS resource indication information when PUSCH transmission in non-codebook mode is configured; the antenna information includes at least one of: antenna information for antenna switching of SRS, antenna information for antenna switching of PUSCH.
The SRI field may be used to indicate one or more of the four uses described above, and RRC signaling may carry a number of bits to indicate the manner in which the indication is made. For example, the SRI field is used to indicate one of the four purposes, and 2 bits are used in RRC signaling to indicate the indication mode, where 00 indicates SRS resource indication when the SRI field is used for PUSCH transmission configured in codebook mode, 01 indicates SRS resource indication when the SRI field is used for PUSCH transmission configured in non-codebook mode, 10 indicates antenna switching of the SRI field for measurement reference signal SRS, and 11 indicates antenna switching of the SRI field for PUSCH.
In a predefined manner, the SRI field may be fixedly set to indicate one or more of the four uses, e.g., the SRI field is fixed to carry both the SRS resource indication information and the two antenna information.
In an embodiment, the use of the SRI field in the DCI is predefined to be related to a most recently configured SRS use, and when the most recently configured SRS use is antenna switching, the SRI field in the DCI is used for antenna switching of SRS or antenna switching of PUSCH.
The SRS use may also be referred to as SRS type. The SRI domain may be configured by higher layer signaling for antenna switching of SRS or for antenna switching of PUSCH.
The most recently configured SRS use may be the most recently configured SRS use before the slot or symbol where the DCI is located, or may be the most recently configured SRS use before the DCI takes effect after the slot or symbol where the DCI is located.
The second scheme configures antenna information in a predefined manner, and carries the antenna information through the DCI.
As shown in fig. 2, the method for transmitting information according to the embodiment of the present invention is applied to a first communication node, and includes:
Step 201, a first communication node configures antenna information in a predefined manner;
Step 202, the first communication node indicates the antenna information through the existing signaling in the DCI or indicates the antenna information through the Cyclic Redundancy Check (CRC) code of the DCI, and sends the DCI to a second communication node;
the antenna information includes information of an antenna or an antenna group used by the second communication node to transmit uplink signals.
In the embodiment of the invention, the first communication node can transmit the antenna information to the second communication node, so that the flexible switching of the antenna or the antenna group for transmitting the uplink signal is realized. Moreover, in this manner, the transfer of antenna information does not occupy more resources, thereby improving resource utilization.
In one implementation manner, the first communication node may be a base station of a macrocell, a base station or a transmission node of a small cell (SMALL CELL), a transmitting node in a high-frequency communication system, a transmitting node in an internet of things system, and the like, and the second communication node may be a node in a communication system such as a user terminal (UE), a mobile phone, a portable device, an automobile, and the like.
The uplink signal may be an SRS, or an uplink demodulation reference signal, or an uplink signal for random access, or a PUSCH signal, or a phase tracking reference signal.
The information of the antenna or the antenna group may be identification information of the antenna or the antenna group, port information of the antenna or the antenna group, or beam identification information corresponding to the antenna or the antenna group.
The first communication node indicates the antenna information through the existing signaling in the DCI, which may be implicitly or explicitly indicated by the existing signaling in the DCI, where the implicit indication refers to that the signaling has other uses, and may be used to indicate the antenna information when the signaling is not used.
In an embodiment, the first communication node indicates the antenna information through signaling already existing in DCI, including:
And when the PUSCH resource allocation information carried in the DCI is of type 0 (type 0), indicating the antenna information to a physical resource block mapping bit (VRB-to-PRB mapping bit) or a frequency hopping identifier (Frequency hopping flag) through a virtual resource block in the DCI.
Wherein, PUSCH resources are allocated as type 0, and VRB-to-PRB mapping bits and Frequency hopping flag in downlink control information are not used and can be used to indicate the antenna information.
For example, when the PUSCH resource allocation is type 0 and the VRB-to-PRB mapping bit or Frequency hopping flag in the downlink control information takes a value of 0, then an antenna 0 or antenna group 0 used by the second communication node is instructed to transmit an uplink signal; when the value of VRB-to-PRB mapping bit or Frequency hopping flag in the downlink control information is 1, the antenna 1 or antenna group 1 used by the second communication node is indicated to send the uplink signal. Therefore, the problem of channel reciprocity when the number of the transmission links of the second communication node is inconsistent with the number of the receiving links can be solved, such as the case that the second communication node is configured as 1T2R, 2T4R and 4T 8R. Where T represents the number of transmission links, R represents the number of reception links, e.g., 1T2R represents the number of transmission links 1 and the number of reception links 2.
In an embodiment, the first communication node indicates the antenna information through a CRC of DCI, including:
and performing CRC check on the DCI by adopting an antenna selection mask and a corresponding radio network temporary identifier (Radio Network Tempory Identity, for short, RNTI), wherein the antenna selection mask indicates the antenna information.
For example, when configuring terminal transmit antenna selection, DCI is CRC checked using antenna selection mask x AS,0,xAS,1,...,xAS,15 and corresponding radio network temporary identity (Radio Network Tempory Identity, abbreviated RNTI) shown in table 1 below
TABLE 1
In an embodiment, the method further comprises:
The first communication node receives antenna configuration information sent by the second communication node, wherein the antenna configuration information comprises at least one of the following components:
Information of the corresponding antenna or antenna group of each radio frequency link; such as (antenna 0, antenna 1), (antenna 2, antenna 3);
Numbering of the antennas.
Wherein, the numbering mode of the antenna can comprise: serial numbers, such as (antenna 0, antenna 1, antenna 2, antenna 3) and cross-polarization numbers, such as (antenna 0, antenna 2, antenna 1, antenna 3).
In an embodiment, the method further comprises:
The first communication node and the second communication node determine the association relation between the SRS resource port and the antenna port in a predefined mode, as shown in table 2 or table 3 or table 4 or table 5 or table 6 or table 7.
Or in consideration of the capability of different second communication nodes, defining the association relation between SRS resource (resource) ports and antenna ports in the processes of 1T8R, 2T8R and 4T8R in combination with the antenna numbering mode of the second communication nodes.
Taking 4T8R as an example:
When the antenna numbering of the second communication node is (ant.0, ant.1, ant.2, ant.3, ant.4, ant.5, ant.6, ant.7), as shown in table 2:
table 2 SRS association of resource ports with antenna ports
SRS ports Antenna port
Port 0 of the first SRS resource Antenna port 0
Port 1 of a first SRS resource Antenna port 2
Port 2 of first SRS resource Antenna port 4
Port 3 of the first SRS resource Antenna port 6
Port 0 of the second SRS resource Antenna port 1
Port 1 of a second SRS resource Antenna port 3
Port 2 of a second SRS resource Antenna port 5
Port 3 of the second SRS resource Antenna port 7
When the antenna numbering of the second communication node is (ant.0, ant.4, ant.1, ant.5, ant.2, ant.6, ant.3, ant.7), as shown in table 3:
Table 3 SRS association of resource ports with antenna ports
SRS ports Antenna port
Port 0 of the first SRS resource Antenna port 0
Port 1 of a first SRS resource Antenna port 1
Port 2 of first SRS resource Antenna port 2
Port 3 of the first SRS resource Antenna port 3
Port 0 of the second SRS resource Antenna port 4
Port 1 of a second SRS resource Antenna port 5
Port 2 of a second SRS resource Antenna port 6
Port 3 of the second SRS resource Antenna port 7
Taking 2T8R as an example:
When the antenna numbering of the second communication node is (ant.0, ant.1, ant.2, ant.3, ant.4, ant.5, ant.6, ant.7), as shown in table 4:
Table 4 SRS association of resource ports with antenna ports
SRS ports Antenna port
Port 0 of the first SRS resource Antenna port 0
Port 1 of a first SRS resource Antenna port 2
Port 0 of the second SRS resource Antenna port 4
Port 1 of a second SRS resource Antenna port 6
Port 0 of the third SRS resource Antenna port 1
Port 1 of a third SRS resource Antenna port 3
Port 0 of the fourth SRS resource Antenna port 5
Port 1 of fourth SRS resource Antenna port 7
When the antenna numbering of the second communication node is (ant.0, ant.4, ant.1, ant.5, ant.2, ant.6, ant.3, ant.7), as shown in table 5:
Table 5 SRS association of resource ports with antenna ports
SRS ports Antenna port
Port 0 of the first SRS resource Antenna port 0
Port 1 of a first SRS resource Antenna port 1
Port 0 of the second SRS resource Antenna port 2
Port 1 of a second SRS resource Antenna port 3
Port 0 of the third SRS resource Antenna port 4
Port 1 of a third SRS resource Antenna port 5
Port 0 of the fourth SRS resource Antenna port 6
Port 1 of fourth SRS resource Antenna port 7
Taking 1T8R as an example:
When the antenna numbering of the second communication node is (ant.0, ant.1, ant.2, ant.3, ant.4, ant.5, ant.6, ant.7), as shown in table 6:
table 6 SRS association of resource ports with antenna ports
When the antenna numbering of the second communication node is (ant.0, ant.4, ant.1, ant.5, ant.2, ant.6, ant.3, ant.7), as shown in table 7:
Table 7 SRS association of resource ports with antenna ports
SRS ports Antenna port
Port 0 of the first SRS resource Antenna port 0
Port 0 of the second SRS resource Antenna port 1
Port 0 of the third SRS resource Antenna port 2
Port 0 of the fourth SRS resource Antenna port 3
Port 0 of the fifth SRS resource Antenna port 4
Port 0 of the sixth SRS resource Antenna port 5
Port 0 of seventh SRS resource Antenna port 6
Port 0 of eighth SRS resource Antenna port 7
The SRS transmission enables the first communication node to support downlink data transmission by utilizing channel reciprocity, and by the mode, the mapping relation between the antenna switching of the uplink signal and the antenna switching of the SRS can be established.
Accordingly, for the first solution, as shown in fig. 3, the method for transmitting information in the embodiment of the present invention is applied to the second communication node, and includes:
Step 301, the second communication node determines the purpose of the SRI field in the DCI through signaling or a predefined manner;
Step 302, the second communication node receives the DCI, and analyzes information carried in the SRI domain according to the use of the SRI domain in the DCI, so as to obtain at least one of antenna information and SRS resource indication information;
The antenna information includes information of an antenna or an antenna group used by the second communication node to transmit an uplink signal, and the SRS resource indication information is used to indicate SRS resources used by the second communication node to transmit a physical uplink shared channel PUSCH.
In the embodiment of the invention, the second communication node can receive the antenna information transmitted by the first communication node, so that the flexible switching of the antenna or the antenna group for transmitting the uplink signal is realized.
In one implementation manner, the first communication node may be a base station of a macrocell, a base station or a transmission node of a small cell (SMALL CELL), a transmitting node in a high-frequency communication system, a transmitting node in an internet of things system, and the like, and the second communication node may be a node in a communication system such as a user terminal (UE), a mobile phone, a portable device, an automobile, and the like.
The uplink signal may be an SRS, or an uplink demodulation reference signal, or an uplink signal for random access, or a PUSCH signal, or a phase tracking reference signal.
The information of the antenna or the antenna group may be identification information of the antenna or the antenna group, port information of the antenna or the antenna group, or beam identification information corresponding to the antenna or the antenna group.
The SRS resource indication information may be information such as SRS sequence, SRS time-frequency location parameter, etc.
In an embodiment, when the second communication node knows the antenna information, the method further includes:
and the second communication node configures an antenna or an antenna group according to the antenna information.
Because the antenna or the antenna group has a corresponding relation with the beam, the second communication node can also configure the beam according to the antenna information.
In an embodiment, the determining, by signaling, the use of the SRI field in the DCI by the second communication node includes:
The second communication node receives Radio Resource Control (RRC) signaling sent by the first communication node, wherein the RRC signaling is used for configuring the purpose of the SRI domain.
In an embodiment, the use of the SRI field in the DCI includes at least one of: an SRS resource indication for PUSCH transmission configured in codebook mode, an SRS resource indication for PUSCH transmission of physical uplink shared channel configured in non-codebook mode, antenna switching for measurement reference signal SRS, antenna switching for physical uplink shared channel PUSCH;
The SRS resource indication information includes at least one of: SRS resource indication information when PUSCH transmission in codebook mode is configured, SRS resource indication information when PUSCH transmission in non-codebook mode is configured; the antenna information includes at least one of: antenna information for antenna switching of SRS, antenna information for antenna switching of PUSCH.
The SRI field may be used to indicate one or more of the four uses described above, and RRC signaling may carry a number of bits to indicate the manner in which the indication is made. For example, the SRI field is used to indicate one of the four purposes, and 2 bits are used in RRC signaling to indicate the indication mode, where 00 indicates SRS resource indication when the SRI field is used for PUSCH transmission configured in codebook mode, 01 indicates SRS resource indication when the SRI field is used for PUSCH transmission configured in non-codebook mode, 10 indicates antenna switching of the SRI field for measurement reference signal SRS, and 11 indicates antenna switching of the SRI field for PUSCH.
In a predefined manner, the SRI field may be fixedly set to indicate one or more of the four uses, e.g., the SRI field is fixed to carry both the SRS resource indication information and the two antenna information.
In an embodiment, the determining, by the second communication node, the use of the SRI field in the DCI in a predefined manner includes:
The use of the SRI field in the DCI is predefined to be related to the most recently configured SRS use, and when the most recently configured SRS use is antenna switching, the SRI field in the DCI is used for antenna switching of SRS or antenna switching of PUSCH.
The SRS use may also be referred to as SRS type. The SRI domain may be configured by higher layer signaling for antenna switching of SRS or for antenna switching of PUSCH.
The most recently configured SRS use may be the most recently configured SRS use before the slot or symbol where the DCI is located, or may be the most recently configured SRS use before the DCI takes effect after the slot or symbol where the DCI is located.
Accordingly, for the second solution, as shown in fig. 4, the method for transmitting information in the embodiment of the present invention is applied to a second communication node, and includes:
Step 401, a second communication node receives DCI sent by a first communication node, and according to a predefined manner, acquires antenna information according to existing signaling in the DCI, or acquires the antenna information through CRC of the DCI;
step 402, the second communication node configures an antenna or an antenna group according to the antenna information;
the antenna information includes information of an antenna or an antenna group used by the second communication node to transmit uplink signals.
In the embodiment of the invention, the second communication node can receive the antenna information transmitted by the first communication node, so that the flexible switching of the antenna or the antenna group for transmitting the uplink signal is realized. Moreover, in this manner, the transfer of antenna information does not occupy more resources, thereby improving resource utilization.
In one implementation manner, the first communication node may be a base station of a macrocell, a base station or a transmission node of a small cell (SMALL CELL), a transmitting node in a high-frequency communication system, a transmitting node in an internet of things system, and the like, and the second communication node may be a node in a communication system such as a user terminal (UE), a mobile phone, a portable device, an automobile, and the like.
The uplink signal may be an SRS, or an uplink demodulation reference signal, or an uplink signal for random access, or a PUSCH signal, or a phase tracking reference signal.
The information of the antenna or the antenna group may be identification information of the antenna or the antenna group, port information of the antenna or the antenna group, or beam identification information corresponding to the antenna or the antenna group.
The antenna information is obtained according to the existing signaling in the DCI, which may be obtained by implicit or explicit indication of the existing signaling in the DCI, where the implicit indication refers to that the signaling has other uses, and may be used to indicate the antenna information when the signaling is not used.
In an embodiment, the learning, according to the existing signaling in the DCI, the antenna information according to the predefined manner includes:
And when the received PUSCH resource allocation information carried in the DCI is of the type 0 (type 0), the antenna information is obtained from a virtual resource block in the DCI to a physical resource block mapping bit (VRB-to-PRB mapping bit) or a frequency hopping identifier (Frequency hopping flag).
Wherein, PUSCH resources are allocated as type 0, and VRB-to-PRB mapping bits and Frequency hopping flag in downlink control information are not used and can be used to indicate the antenna information.
For example, when the PUSCH resource allocation is type 0 and the VRB-to-PRB mapping bit or Frequency hopping flag in the downlink control information has a value of 0, then the antenna 0 or the antenna group 0 used by the second communication node sends an uplink signal; when the value of VRB-to-PRB mapping bit or Frequency hopping flag in the downlink control information is 1, the antenna 1 or antenna group 1 used by the second communication node sends the uplink signal. Therefore, the problem of channel reciprocity when the number of the transmission links of the second communication node is inconsistent with the number of the receiving links can be solved, such as the case that the second communication node is configured as 1T2R, 2T4R and 4T 8R. Where T represents the number of transmission links, R represents the number of reception links, e.g., 1T2R represents the number of transmission links 1 and the number of reception links 2.
In an embodiment, the obtaining the antenna information through the CRC of the DCI in a predefined manner includes:
the antenna information is known from an antenna selection mask used for CRC checking the DCI.
For example, from the antenna selection mask x AS,0,xAS,1,...,xAS,15 used in table 1, port information of a corresponding antenna or antenna group can be known.
In an embodiment, the method further comprises:
The second communication node sends antenna configuration information to the first communication node, the antenna configuration information including at least one of:
Information of the corresponding antenna or antenna group of each radio frequency link; such as (antenna 0, antenna 1), (antenna 2, antenna 3);
Numbering of the antennas.
Wherein, the numbering mode of the antenna can comprise: serial numbers, such as (antenna 0, antenna 1, antenna 2, antenna 3) and cross-polarization numbers, such as (antenna 0, antenna 2, antenna 1, antenna 3).
In an embodiment, the method further comprises:
The second communication node determines the association relationship between the SRS resource port and the antenna port with the first communication node in a predefined manner, as shown in table 2 or table 3 or table 4 or table 5 or table 6 or table 7.
Or in consideration of the capability of different second communication nodes, defining the association relation between SRS resource (resource) ports and antenna ports in the processes of 1T8R, 2T8R and 4T8R in combination with the antenna numbering mode of the second communication nodes.
Taking 4T8R as an example:
When the antenna numbering of the second communication node is (ant.0, ant.1, ant.2, ant.3, ant.4, ant.5, ant.6, ant.7), as shown in table 2.
When the antenna numbering of the second communication node is (ant.0, ant.4, ant.1, ant.5, ant.2, ant.6, ant.3, ant.7), as shown in table 3.
The SRS transmission enables the first communication node to support downlink data transmission by utilizing channel reciprocity, and by the mode, the mapping relation between the antenna switching of the uplink signal and the antenna switching of the SRS can be established.
The embodiment of the present invention further provides an information transmission device, which is used to implement the foregoing embodiments and implementations, and is not described in detail. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the following embodiments may be implemented in software, implementation in hardware, or a combination of software and hardware, is also possible and contemplated.
As shown in fig. 5, the apparatus for transmitting information according to the embodiment of the present invention is applied to a first communication node, and corresponds to a first scheme, and includes:
a first configuration module 51, configured to configure, by signaling or in a predefined manner, use of the SRI domain of the measurement reference signal resource identifier in the downlink control information DCI;
A first sending module 52, configured to send the DCI to a second communication node according to the use of the SRI field in the DCI, where the SRI field in the DCI carries at least one of antenna information and SRS resource indication information of a measurement reference signal;
The antenna information includes information of an antenna or an antenna group used by the second communication node to transmit an uplink signal, and the SRS resource indication information is used to indicate SRS resources used by the second communication node to transmit a physical uplink shared channel PUSCH.
In the embodiment of the invention, the first communication node can transmit the antenna information to the second communication node, so that the flexible switching of the antenna or the antenna group for transmitting the uplink signal is realized.
In an embodiment, the first configuration module 51 is configured to:
and sending Radio Resource Control (RRC) signaling to the second communication node, wherein the RRC signaling is used for configuring the purposes of the SRI domain.
In an embodiment, the use of the SRI field in the DCI includes at least one of: an SRS resource indication for PUSCH transmission configured in codebook mode, an SRS resource indication for PUSCH transmission of physical uplink shared channel configured in non-codebook mode, antenna switching for measurement reference signal SRS, antenna switching for physical uplink shared channel PUSCH;
The SRS resource indication information includes at least one of: SRS resource indication information when PUSCH transmission in codebook mode is configured, SRS resource indication information when PUSCH transmission in non-codebook mode is configured; the antenna information includes at least one of: antenna information for antenna switching of SRS, antenna information for antenna switching of PUSCH.
In an embodiment, the first configuration module 51 is configured to: the use of the SRI field in the DCI is predefined to be related to the most recently configured SRS use, and when the most recently configured SRS use is antenna switching, the SRI field in the DCI is used for antenna switching of SRS or antenna switching of PUSCH.
In an embodiment, further comprising:
the first receiving module is configured to receive antenna configuration information sent by the second communication node, where the antenna configuration information includes at least one of the following:
Information of the corresponding antenna or antenna group of each radio frequency link;
Numbering of the antennas.
In an embodiment, the numbering of the antennas includes at least one of: sequential numbering and cross-polarization numbering.
In an embodiment, further comprising:
and the first determining module is used for determining the association relation between the SRS resource port and the antenna port with the second communication node in a predefined mode.
As shown in fig. 6, the apparatus for transmitting information according to the embodiment of the present invention is applied to a first communication node, and corresponds to a second scheme, and includes:
a second configuration module 61, configured to configure the antenna information in a predefined manner;
A second sending module 62, configured to send the DCI to a second communication node by indicating the antenna information through an existing signaling in the DCI or indicating the antenna information through a Cyclic Redundancy Check (CRC) code of the DCI;
the antenna information includes information of an antenna or an antenna group used by the second communication node to transmit uplink signals.
In the embodiment of the invention, the first communication node can transmit the antenna information to the second communication node, so that the flexible switching of the antenna or the antenna group for transmitting the uplink signal is realized. Moreover, in this manner, the transfer of antenna information does not occupy more resources, thereby improving resource utilization.
In an embodiment, the second sending module 62 is configured to:
and when the PUSCH resource allocation information carried in the DCI is of the type 0, indicating the antenna information by mapping bits or frequency hopping identifiers to physical resource blocks through virtual resource blocks in the DCI.
In an embodiment, the second sending module 62 is configured to:
And carrying out CRC (cyclic redundancy check) on the DCI by adopting an antenna selection mask and a corresponding Radio Network Temporary Identifier (RNTI), wherein the antenna selection mask indicates the antenna information.
In an embodiment, further comprising:
the second receiving module is configured to receive antenna configuration information sent by the second communication node, where the antenna configuration information includes at least one of the following:
Information of the corresponding antenna or antenna group of each radio frequency link;
Numbering of the antennas.
In an embodiment, the numbering of the antennas includes at least one of: sequential numbering and cross-polarization numbering.
In an embodiment, further comprising:
and the second determining module is used for determining the association relation between the SRS resource port and the antenna port with the second communication node in a predefined mode.
As shown in fig. 7, the apparatus for transmitting information according to the embodiment of the present invention is applied to a second communication node, and corresponds to a first scheme, and includes:
A third determining module 71, configured to determine, by signaling or in a predefined manner, a use of the SRI field in the DCI;
a third receiving module 72, configured to receive the DCI, analyze information carried in the SRI field according to the use of the SRI field in the DCI, and learn at least one of antenna information and SRS resource indication information;
The antenna information includes information of an antenna or an antenna group used by the second communication node to transmit an uplink signal, and the SRS resource indication information is used to indicate SRS resources used by the second communication node to transmit a physical uplink shared channel PUSCH.
In the embodiment of the invention, the second communication node can receive the antenna information transmitted by the first communication node, so that the flexible switching of the antenna or the antenna group for transmitting the uplink signal is realized.
In an embodiment, further comprising:
and the third configuration module is used for configuring the antenna or the antenna group according to the antenna information.
In an embodiment, the third determining module 71 is configured to:
The second communication node receives Radio Resource Control (RRC) signaling sent by the first communication node, wherein the RRC signaling is used for configuring the purpose of the SRI domain.
In an embodiment, the third determining module 71 is configured to:
The use of the SRI field in the DCI is predefined to be related to the most recently configured SRS use, and when the most recently configured SRS use is antenna switching, the SRI field in the DCI is used for antenna switching of SRS or antenna switching of PUSCH.
In an embodiment, further comprising:
a third transmitting module, configured to transmit antenna configuration information to the second node, where the antenna configuration information includes at least one of:
Information of the corresponding antenna or antenna group of each radio frequency link;
Numbering of the antennas.
In an embodiment, further comprising:
and the fourth determining module is used for determining the association relation between the SRS resource port and the antenna port with the first communication node in a predefined mode.
As shown in fig. 8, the apparatus for transmitting information according to the embodiment of the present invention is applied to a second communication node, and corresponds to a second scheme, and includes:
a fourth receiving module 81, configured to receive DCI sent by the first communication node, and obtain antenna information according to existing signaling in the DCI, or obtain the antenna information through CRC of the DCI according to a predefined manner;
a fourth configuration module 82, configured to configure an antenna or an antenna group according to the antenna information;
the antenna information includes information of an antenna or an antenna group used by the second communication node to transmit uplink signals.
In the embodiment of the invention, the second communication node can receive the antenna information transmitted by the first communication node, so that the flexible switching of the antenna or the antenna group for transmitting the uplink signal is realized. Moreover, in this manner, the transfer of antenna information does not occupy more resources, thereby improving resource utilization.
In an embodiment, further comprising:
A fourth transmitting module, configured to transmit antenna configuration information to the first communication node, where the antenna configuration information includes at least one of:
Information of the corresponding antenna or antenna group of each radio frequency link;
Numbering of the antennas.
In an embodiment, further comprising:
And a fifth determining module, configured to determine, with the first communication node, an association relationship between the SRS resource port and the antenna port in a predefined manner.
The embodiment of the invention also provides a communication node, which comprises:
a processor;
a memory for storing the processor-executable instructions;
transmission means for performing information transmission-reception communication according to control of the processor;
wherein the processor is configured to perform the following operations:
the method comprises the steps of configuring the application of a measurement reference signal resource identifier SRI domain in downlink control information DCI through signaling or a predefined mode;
According to the application of the SRI domain in the DCI, transmitting the DCI to a second communication node through at least one of antenna information and SRS resource indication information of a measurement reference signal carried by the SRI domain in the DCI;
The antenna information includes information of an antenna or an antenna group used by the second communication node to transmit an uplink signal, and the SRS resource indication information is used to indicate SRS resources used by the second communication node to transmit a physical uplink shared channel PUSCH.
The embodiment of the invention also provides a communication node, which comprises:
a processor;
a memory for storing the processor-executable instructions;
transmission means for performing information transmission-reception communication according to control of the processor;
wherein the processor is configured to perform the following operations:
Configuring antenna information in a predefined manner;
indicating the antenna information through the signaling existing in the DCI or indicating the antenna information through the Cyclic Redundancy Check (CRC) code of the DCI, and sending the DCI to a second communication node;
the antenna information includes information of an antenna or an antenna group used by the second communication node to transmit uplink signals.
The embodiment of the invention also provides a communication node, which comprises:
a processor;
a memory for storing the processor-executable instructions;
transmission means for performing information transmission-reception communication according to control of the processor;
wherein the processor is configured to perform the following operations:
Determining the purpose of the SRI domain in the DCI through signaling or a predefined mode;
Receiving the DCI, analyzing information carried by the SRI domain according to the application of the SRI domain in the DCI, and acquiring at least one of antenna information and SRS resource indication information;
the antenna information includes information of an antenna or an antenna group used for sending an uplink signal, and the SRS resource indication information is used for indicating SRS resources used by the second communication node to send a physical uplink shared channel PUSCH.
The embodiment of the invention also provides a communication node, which comprises:
a processor;
a memory for storing the processor-executable instructions;
transmission means for performing information transmission-reception communication according to control of the processor;
wherein the processor is configured to perform the following operations:
Receiving DCI sent by a first communication node, and acquiring antenna information according to the existing signaling in the DCI or acquiring the antenna information through CRC of the DCI according to a predefined mode;
Configuring an antenna or an antenna group according to the antenna information;
The antenna information includes information of an antenna or an antenna group for transmitting an uplink signal.
The embodiment of the invention also provides a computer readable storage medium which stores computer executable instructions for the method for transmitting information.
In the present embodiment, the storage medium may include, but is not limited to: a usb disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.
It will be apparent to those skilled in the art that the modules or steps of the embodiments of the invention described above may be implemented in a general purpose computing device, they may be concentrated on a single computing device, or distributed across a network of computing devices, they may alternatively be implemented in program code executable by computing devices, so that they may be stored in a storage device for execution by computing devices, and in some cases, the steps shown or described may be performed in a different order than what is shown or described, or they may be separately fabricated into integrated circuit modules, or a plurality of modules or steps in them may be fabricated into a single integrated circuit module. Thus, embodiments of the invention are not limited to any specific combination of hardware and software.
Although the embodiments of the present invention are described above, the embodiments are only used for facilitating understanding of the present invention, and are not intended to limit the present invention. Any person skilled in the art can make any modification and variation in form and detail without departing from the spirit and scope of the present disclosure, but the scope of the present disclosure is to be determined by the appended claims.

Claims (14)

1. A method of information transmission, comprising:
The first communication node configures the use of the SRI domain in the downlink control information DCI through signaling or a predefined mode;
Wherein, the use of the SRI domain in the DCI comprises at least one of the following: an SRS resource indication for PUSCH transmission configured in codebook mode, an SRS resource indication for PUSCH transmission configured in non-codebook mode, antenna switching for SRS, antenna switching for PUSCH; the first communication node configures the usage of the SRI domain in the downlink control information DCI through a predefined mode, and the usage comprises the following steps: the use of the SRI domain in the DCI is predefined to be related to the use of the SRS which is configured recently, and when the use of the SRS which is configured recently is antenna switching, the SRI domain in the DCI is used for antenna switching of the SRS or antenna switching of the PUSCH;
The first communication node sends the DCI to a second communication node according to the application of the SRI domain in the DCI, wherein the SRI domain in the DCI carries at least one of antenna information and SRS resource indication information of a measurement reference signal;
The antenna information includes information of an antenna or an antenna group used by the second communication node for sending uplink signals, and the SRS resource indication information is used for indicating SRS resources used by the second communication node for sending a physical uplink shared channel PUSCH;
The method further comprises the steps of:
The first communication node receives antenna configuration information sent by the second communication node, wherein the antenna configuration information comprises at least one of the following components:
Information of the corresponding antenna or antenna group of each radio frequency link;
Numbering of the antennas.
2. The method of claim 1, wherein the first communication node signaling the use of the SRI field in the DCI, comprising:
the first communication node sends radio resource control, RRC, signaling to the second communication node, the RRC signaling being used to configure the use of the SRI domain.
3. The method of claim 1 or 2, wherein,
The SRS resource indication information includes at least one of: SRS resource indication information when PUSCH transmission in codebook mode is configured, SRS resource indication information when PUSCH transmission in non-codebook mode is configured; the antenna information includes at least one of: antenna information for antenna switching of SRS, antenna information for antenna switching of PUSCH.
4. The method of claim 1, wherein the numbering of the antennas comprises at least one of: sequential numbering and cross-polarization numbering.
5. The method of claim 1, wherein the method further comprises:
the first communication node and the second communication node determine the association relation between the SRS resource port and the antenna port in a predefined mode.
6. A method of information transmission, comprising:
the second communication node determines the purpose of the SRI domain of the measurement reference signal resource identifier in the downlink control information DCI through signaling or a predefined mode;
Wherein, the use of the SRI domain in the DCI comprises at least one of the following: an SRS resource indication for PUSCH transmission configured in codebook mode, an SRS resource indication for PUSCH transmission configured in non-codebook mode, antenna switching for SRS, antenna switching for PUSCH; the second communication node determines the purpose of the SRI field in the DCI in a predefined manner, including: the use of the SRI domain in the DCI is predefined to be related to the use of the SRS which is configured recently, and when the use of the SRS which is configured recently is antenna switching, the SRI domain in the DCI is used for antenna switching of the SRS or antenna switching of the PUSCH;
The second communication node receives the DCI, analyzes information carried by the SRI domain according to the application of the SRI domain in the DCI, and acquires at least one of antenna information and SRS resource indication information of a measurement reference signal;
The antenna information includes information of an antenna or an antenna group used by the second communication node to transmit an uplink signal, and the SRS resource indication information is used to indicate SRS resources used by the second communication node to transmit a physical uplink shared channel PUSCH;
The method further comprises the steps of:
the second communication node sends antenna configuration information to the first communication node, the antenna configuration information including at least one of:
Information of the corresponding antenna or antenna group of each radio frequency link;
Numbering of the antennas.
7. The method of claim 6, wherein when the second communication node knows the antenna information, the method further comprises:
and the second communication node configures an antenna or an antenna group according to the antenna information.
8. The method of claim 6, wherein the second communication node signaling the use of the SRI field in the DCI, comprising:
The second communication node receives Radio Resource Control (RRC) signaling sent by the first communication node, wherein the RRC signaling is used for configuring the purpose of the SRI domain.
9. The method of claim 6, wherein the method further comprises:
And the second communication node and the first communication node determine the association relation between the SRS resource port and the antenna port in a predefined mode.
10. An apparatus for information transmission, comprising:
The first configuration module is used for configuring the application of the SRI domain in the downlink control information DCI through signaling or a predefined mode;
Wherein, the use of the SRI domain in the DCI comprises at least one of the following: an SRS resource indication for PUSCH transmission configured in codebook mode, an SRS resource indication for PUSCH transmission configured in non-codebook mode, antenna switching for SRS, antenna switching for PUSCH; the method for configuring the application of the SRI domain in the downlink control information DCI through a predefined mode comprises the following steps: the use of the SRI domain in the DCI is predefined to be related to the use of the SRS which is configured recently, and when the use of the SRS which is configured recently is antenna switching, the SRI domain in the DCI is used for antenna switching of the SRS or antenna switching of the PUSCH;
a first sending module, configured to send, according to an application of an SRI field in the DCI, the DCI to a second communication node through at least one of antenna information and measurement reference signal SRS resource indication information carried by the SRI field in the DCI;
The antenna information includes information of an antenna or an antenna group used by the second communication node for sending uplink signals, and the SRS resource indication information is used for indicating SRS resources used by the second communication node for sending a physical uplink shared channel PUSCH;
the apparatus further comprises:
the first receiving module is configured to receive antenna configuration information sent by the second communication node, where the antenna configuration information includes at least one of the following:
Information of the corresponding antenna or antenna group of each radio frequency link;
Numbering of the antennas.
11. An apparatus for information transmission, comprising:
a third determining module, configured to determine, by signaling or in a predefined manner, a use of an SRI domain in downlink control information DCI;
Wherein, the use of the SRI domain in the DCI comprises at least one of the following: an SRS resource indication for PUSCH transmission configured in codebook mode, an SRS resource indication for PUSCH transmission configured in non-codebook mode, antenna switching for SRS, antenna switching for PUSCH; determining the purpose of the SRI field in the DCI in a predefined manner, comprising: the use of the SRI domain in the DCI is predefined to be related to the use of the SRS which is configured recently, and when the use of the SRS which is configured recently is antenna switching, the SRI domain in the DCI is used for antenna switching of the SRS or antenna switching of the PUSCH;
a third receiving module, configured to receive the DCI, analyze information carried in the SRI domain according to a use of a measurement reference signal resource identifier SRI domain in the DCI, and learn at least one of antenna information and SRS resource indication information;
The antenna information includes information of an antenna or an antenna group used by the second communication node for sending uplink signals, and the SRS resource indication information is used for indicating the second communication node to send SRS resources used by a physical uplink shared channel PUSCH;
the apparatus further comprises:
A third transmitting module, configured to transmit antenna configuration information to the second communication node, where the antenna configuration information includes at least one of:
Information of the corresponding antenna or antenna group of each radio frequency link;
Numbering of the antennas.
12. A communication node, comprising:
a processor;
a memory for storing the processor-executable instructions;
transmission means for performing information transmission-reception communication according to control of the processor;
wherein the processor is configured to perform the following operations:
the method comprises the steps of configuring the application of a measurement reference signal resource identifier SRI domain in downlink control information DCI through signaling or a predefined mode;
Wherein, the use of the SRI domain in the DCI comprises at least one of the following: an SRS resource indication for PUSCH transmission configured in codebook mode, an SRS resource indication for PUSCH transmission configured in non-codebook mode, antenna switching for SRS, antenna switching for PUSCH; the method for configuring the application of the SRI domain in the downlink control information DCI through a predefined mode comprises the following steps: the use of the SRI domain in the DCI is predefined to be related to the use of the SRS which is configured recently, and when the use of the SRS which is configured recently is antenna switching, the SRI domain in the DCI is used for antenna switching of the SRS or antenna switching of the PUSCH;
According to the application of the SRI domain in the DCI, transmitting the DCI to a second communication node through at least one of antenna information and SRS resource indication information of a measurement reference signal carried by the SRI domain in the DCI;
The antenna information includes information of an antenna or an antenna group used by the second communication node for sending uplink signals, and the SRS resource indication information is used for indicating SRS resources used by the second communication node for sending a physical uplink shared channel PUSCH;
receiving antenna configuration information sent by the second communication node, wherein the antenna configuration information comprises at least one of the following components:
Information of the corresponding antenna or antenna group of each radio frequency link;
Numbering of the antennas.
13. A communication node, comprising:
a processor;
a memory for storing the processor-executable instructions;
transmission means for performing information transmission-reception communication according to control of the processor;
wherein the processor is configured to perform the following operations:
determining the purpose of the SRI domain of the measurement reference signal resource identifier in the downlink control information DCI through signaling or a predefined mode;
Wherein, the use of the SRI domain in the DCI comprises at least one of the following: an SRS resource indication for PUSCH transmission configured in codebook mode, an SRS resource indication for PUSCH transmission configured in non-codebook mode, antenna switching for SRS, antenna switching for PUSCH; determining the purpose of the SRI field in the DCI in a predefined manner, comprising: the use of the SRI domain in the DCI is predefined to be related to the use of the SRS which is configured recently, and when the use of the SRS which is configured recently is antenna switching, the SRI domain in the DCI is used for antenna switching of the SRS or antenna switching of the PUSCH;
Receiving the DCI, analyzing information carried by the SRI domain according to the application of the SRI domain in the DCI, and acquiring at least one of antenna information and SRS resource indication information;
The antenna information includes information of an antenna or an antenna group used for sending uplink signals, and the SRS resource indication information is used for indicating the second communication node to send SRS resources used by a physical uplink shared channel PUSCH;
transmitting antenna configuration information to a first communication node, the antenna configuration information comprising at least one of:
Information of the corresponding antenna or antenna group of each radio frequency link;
Numbering of the antennas.
14. A computer readable storage medium storing computer executable instructions for performing the method of any one of claims 1-9.
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