CN101715237A - Uplink transmission method and device based on competition - Google Patents

Abstract

The present invention discloses a contention-based uplink transmission method and device. The method includes: the network side notifies the terminal of one or more shared resource identifiers CB-RNTI, and sends the uplink scheduling corresponding to one or more CB-RNTIs to the terminal. Grant signaling, wherein the uplink scheduling grant signaling is used to notify the resources allocated for the terminal for CB uplink transmission, the resources are located between the resources occupied by the uplink control signaling and the resources occupied by frequency hopping, and the CB-RNTI and The uplink scheduling authorization signaling corresponds to one by one; the terminal performs CB uplink transmission through resources. The present invention reduces the overhead of PDCCH, reduces the probability of terminal collision, alleviates the load of PDCCH public search space, reduces the impact on frequency domain scheduling or PUSCH frequency hopping, and improves the overall contention-based uplink signal transmission scheme performance.

Description

Contention-based uplink transmission method and device

technical field

The present invention relates to the communication field, in particular, to a contention based (abbreviated as CB) uplink transmission method and device.

Background technique

In the Long Term Evolution (LTE for short) wireless system, a terminal (User Equipment, UE for short) sends a Scheduling Request (SR for short) through a Physical Uplink Control Channel (PUCCH for short) and The process of obtaining and sending uplink data is shown in Figure 1: the terminal sends SR; the base station assigns an uplink scheduling grant (Uplink Scheduling Grant, UL Grant) to the terminal through a Physical Downlink Control Channel (PDCCH for short); the terminal Send a buffer status report (BSR) according to the obtained uplink grant (or pre-configured uplink grant); the base station allocates an uplink grant for sending uplink data to the terminal through the PDCCH according to the scheduling policy; the terminal according to the obtained uplink grant. An uplink shared channel (Physical UplinkShared Channel, PUSCH for short) sends uplink data.

The above-mentioned (1)-(5) process from the terminal sending the SR to sending the uplink data brings a relatively large delay. For signaling or delay-sensitive services, the delay caused by the above process may affect the throughput or user perception. . Therefore, the uplink resource request method adopted in LTE still has certain optimization requirements in terms of time delay, and the time delay performance can be optimized through an auxiliary contention-based uplink signal transmission method.

The contention-based uplink signal transmission can make the terminal in the synchronous state directly send uplink data without sending SR in advance, thereby saving the process of step (1) or even steps (1)-(3), and reducing delay and signaling overhead. In order to realize this optimization, the terminal needs to acquire resources for sending uplink data in advance. In order not to affect the normal scheduling process and save uplink resources, the base station can allocate some special resource blocks, which are the remaining resource blocks after normal scheduling, and can be shared by multiple or all terminals. A terminal that needs to send uplink data can directly use the resource without requesting the base station in advance. Since multiple terminals may use the shared resource block at the same time, contention or conflict may occur, resulting in failure of uplink data transmission. However, when the system load is low, the probability that multiple terminals compete for the above-mentioned shared resource block at the same time will be in a certain low range, so that uplink data transmission using this resource can be successful in most cases. In order to notify the terminal of the above-mentioned shared resource block, the base station may broadcast one or more shared resource identifiers CB-RNTI through a system message in the cell (cell). All terminals in the cell can learn the above identifier. The base station dynamically allocates the uplink grant scrambled with the identifier through the PDCCH, and the terminal can obtain the corresponding uplink grant according to the identifier, so as to use the resource allocated by the uplink grant to perform uplink data transmission and add the terminal's own information to the sent data. The identifier C-RNTI (Cell-Radio Network Temporary Identifier) in the cell, so that the base station can know which terminal the above data belongs to.

The above process is shown in Figure 2: in step (0), the base station notifies all terminals of the resource identifier CB-RNTI through system information; after obtaining the identifier, the terminal can obtain the identifier and its corresponding uplink by monitoring the PDCCH in the active state Authorization, that is, step (1); for a terminal that does not have a dedicated uplink authorization, it can directly use the above-mentioned shared uplink authorization to send uplink data on the PUSCH channel, that is, step (2).

In LTE, downlink physical control signaling is carried on PDCCH. PDCCH is used to transmit downlink control information (DCI for short). Different types of control information are distinguished by the format of control information (DCI format). LTE includes format 0, format 1, format 1A, format 1B, format 1C, format1D, format 3, format 3A and other downlink control information formats, among which DCI format 0 is used for notification of uplink scheduling authorization signaling (UL grant). Each DCI signaling format will be accompanied by a 16-bit Cyclic Redundancy Check (CRC for short), and each CRC will correspond to a Radio Network Temporary Identity (RNTI for short) through implicit coding. ), that is, by using the RNTI to scramble the CRC, and then the terminal performs blind detection on the CRC according to the RNTI to obtain the control information it contains.

Uplink channel resource allocation in the LTE system is in units of resource blocks (Resource Block, RB). The resource block is used to describe the mapping from a physical channel (Physical Channel) to a resource element (Resource Element, referred to as RE). Resource blocks include two types: physical resource blocks (Physical Resource Block, referred to as PRB) and virtual resource blocks (Virtual Resource Block, referred to as VRB).

子载波间隔为15kHz，即一个PRB在频域上的宽度为180kHz。对常规循环前缀(Normal cyclic prefix，简称为Normal CP)，

对扩展循环前缀(Extended cyclic prefix，简称为Extended CP)，即一个PRB在时域上的长度为一个时隙(slot，0.5ms)。这样，一个PRB包括N_symb ^UL×N_SC ^RB个资源单元。在一个时隙中，PRB的索引为n_PRB，其中，

N_RB ^UL为上行系统带宽对应的PRB数；RE的索引对为(k，l)，其中，

为频域索引，

为时域索引，则

以常规循环前缀为例，PRB的结构如图3所示。一个虚拟资源块VRB具有与PRB相同的结构和大小。According to the bandwidth configuration, there may be N _RB ^UL RBs in the uplink, and one physical resource block PRB occupies N _SC ^RB consecutive subcarriers (subcarriers) in the frequency domain and N _symb ^UL consecutive symbols in the time domain. in

The subcarrier interval is 15kHz, that is, the width of one PRB in the frequency domain is 180kHz. For Normal cyclic prefix (Normal CP for short),

For Extended cyclic prefix (Extended cyclic prefix, Extended CP for short), That is, the length of one PRB in the time domain is one slot (slot, 0.5 ms). In this way, one PRB includes N _symb ^UL ×N _SC ^RB resource units. In a slot, the index of PRB is n _PRB , where,

N _RB ^UL is the number of PRBs corresponding to the uplink system bandwidth; the index pair of RE is (k, l), where,

is the frequency domain index,

is the time domain index, then

Taking the conventional cyclic prefix as an example, the structure of the PRB is shown in FIG. 3 . A virtual resource block VRB has the same structure and size as a PRB.

As shown in FIG. 4 , the resource allocation of LTE PUSCH can adopt a localized allocation method, that is, the PUSCH of a UE occupies a continuous bandwidth in the frequency domain, which is a part of the entire uplink system bandwidth. This bandwidth includes a group of continuous PRBs, the number of PRBs is M _RB ^PUSCH , and the number of consecutive subcarriers included is Discontinuous resource allocation (also called distributed allocation) can also be used, which means that the PUSCH of the user terminal occupies multiple bandwidths in one component carrier. These bandwidths are discontinuous, and each bandwidth contains a group of continuous PRBs, called It is a cluster, as shown in Figure 5.

Although the process of CB uplink transmission is given in the prior art, the resource allocation method for CB uplink transmission and the process of how the terminal uses the allocated resources to perform CB uplink transmission have not been pointed out yet.

Contents of the invention

The present invention is proposed in view of the problems in the related art that the resource allocation method for CB uplink transmission and the process of how the terminal uses the allocated resources for CB uplink transmission have not been pointed out. Therefore, the main purpose of the present invention is to provide a method based on A contention uplink transmission method and device to solve at least one of the above problems.

In order to achieve the above object, according to one aspect of the present invention, a contention-based CB uplink transmission method is provided, the method includes: the network side notifies the terminal of one or more shared resource identifiers CB-RNTI, and sends one or more CB-RNTIs to the terminal Uplink scheduling grant signaling corresponding to multiple CB-RNTIs, wherein the uplink scheduling grant signaling is used to notify the resources allocated for the terminal for CB uplink transmission, and the resources are located between the resources occupied by the uplink control signaling and the resources occupied by frequency hopping There is a one-to-one correspondence between the CB-RNTI and the uplink scheduling grant signaling among the resources; the terminal performs CB uplink transmission through resources.

Preferably, the uplink scheduling grant signaling is used to notify the resources allocated to the terminal for CB uplink transmission on multiple subframes.

Preferably, the CB uplink transmission by the terminal using resources includes: the terminal selects a resource from the resources notified by the uplink grant signaling corresponding to one or more CB-RNTIs; uses the CB-RNTI corresponding to the selected resource to perform uplink Scrambling of transmission, and use a selected resource for CB uplink transmission.

In order to achieve the above object, according to one aspect of the present invention, a CB uplink transmission method is provided, including: the network side notifies the terminal of a CB-RNTI and a predetermined rule, and sends an uplink scheduling authorization signaling corresponding to the CB-RNTI to the terminal , where the predetermined rule includes that the size of the resource used by the terminal for CB uplink transmission is N, and the uplink scheduling signaling is used to notify the resource information allocated for the terminal. The resource information includes the resource location and the allocated resource size, and the allocated resource size is M× N and M are positive integers; the terminal performs CB uplink transmission according to predetermined rules and resource information.

Preferably, the CB uplink transmission by the terminal according to predetermined rules and resource information includes: the terminal divides the resource indicated by the resource information into M blocks according to the order of frequency domain positions, where the size of each resource in the M blocks of resources is N; A resource is selected from the block resources for CB uplink transmission.

Preferably, the resource allocation mode adopted by the resource notified by the uplink grant signaling includes at least one of the following: centralized resource allocation and discontinuous resource allocation.

In order to achieve the above object, according to one aspect of the present invention, a CB uplink transmission method is provided, including: the network side notifies the terminal of a CB-RNTI, the first predetermined rule and the second predetermined rule, and sends high-level signaling to the terminal , wherein the first predetermined rule includes: the size of the resource used by the terminal for CB uplink transmission is N, the second predetermined rule includes: the resource arrangement rule for the CB uplink transmission allocated by the network side for the terminal, and the high-level signaling is used to Notify the resource information allocated for the terminal, the resource information includes the allocated resource size, the allocated resource size is M×N, and M is a positive integer; the terminal performs CB uplink transmission according to the first predetermined rule, the second predetermined rule and the resource information.

Preferably, the terminal performing CB uplink transmission according to the first predetermined rule, the second predetermined rule and the resource information includes: when the terminal receives an uplink scheduling authorization signaling from the network side for activating the CB uplink transmission of the terminal, the terminal CB uplink transmission is performed according to the first predetermined rule, the second predetermined rule and resource information.

Preferably, the second predetermined rule includes: the resources allocated by the network side for the terminal for CB uplink transmission are located between the resources occupied by uplink control signaling and the resources occupied by frequency hopping, and evenly distributed among the resources occupied by frequency hopping On both sides of the resource and next to the resources occupied by frequency hopping.

Preferably, the terminal's CB uplink transmission according to the first predetermined rule, the second predetermined rule and resource information includes: the terminal determines the frequency domain position of the resource allocated by the network side for the CB uplink transmission according to the N _RB ^HO and the M value, wherein, N _RB ^HO is the PUSCH frequency hopping offset; the terminal divides the resources with determined frequency domain positions into M blocks according to the order of frequency domain positions, where the size of each block of M blocks of resources is N; the terminal selects a block from the M blocks of resources Resources for CB uplink transmission.

In order to achieve the above object, according to one aspect of the present invention, a CB uplink transmission method is provided, including: the network side notifies the terminal of a CB-RNTI and a predetermined rule, and sends an uplink scheduling authorization signaling corresponding to the CB-RNTI to the terminal , wherein the predetermined rule includes that the resource size used by the terminal for CB uplink transmission is the resource size of the cluster selected by the terminal, and the uplink scheduling signaling is used to notify the resource information allocated for the terminal, and the resource information includes multiple clusters for CB uplink transmission The size and location of the resource; the terminal performs CB uplink transmission according to predetermined rules and resource information.

Preferably, each of the multiple clusters is a group of continuous resource blocks, and each cluster is separated by at least one resource block in the frequency domain.

Preferably, performing CB uplink transmission by the terminal according to a predetermined rule and resource information includes: the terminal selects a resource cluster from multiple clusters indicated by the resource information to perform CB uplink transmission.

In order to achieve the above object, according to another aspect of the present invention, a CB uplink transmission device is provided, including: a sending module, configured to notify the terminal of one or more CB-RNTIs, and send one or more CB-RNTIs to the terminal The uplink scheduling grant signaling corresponding to the RNTI, wherein the uplink scheduling grant signaling is used to notify the resources allocated for the terminal for CB uplink transmission, and the resources are located between the resources occupied by the uplink control signaling and the resources occupied by frequency hopping , the CB-RNTI corresponds to the uplink scheduling grant signaling one-to-one; the transmission module is used to perform CB uplink transmission through resources.

In order to achieve the above object, according to another aspect of the present invention, a CB uplink transmission device is provided, including: a sending module, configured to notify the terminal of a CB-RNTI and a predetermined rule, and send the uplink corresponding to the CB-RNTI to the terminal Scheduling authorization signaling, wherein the predetermined rule includes that the resource size used by the terminal for CB uplink transmission is N, and the uplink scheduling signaling is used to notify the resource information allocated for the terminal. The resource information includes the resource location and the allocated resource size, and the allocated resource The size is M×N, and M is a positive integer; the transmission module is used for CB uplink transmission according to predetermined rules and resource information.

In order to achieve the above object, according to another aspect of the present invention, a CB uplink transmission device is provided, including: a sending module, configured to notify a terminal of a CB-RNTI, a first predetermined rule, and a second predetermined rule, and send the CB-RNTI to the terminal Sending high-level signaling, wherein the first predetermined rule includes: the size of the resource used by the terminal for CB uplink transmission is N, and the second predetermined rule includes: the resource arrangement rule for the CB uplink transmission allocated by the network side for the terminal, and the high-level The signaling is used to notify the resource information allocated for the terminal, the resource information includes the allocated resource size, the allocated resource size is M×N, and M is a positive integer; The resource information is transmitted uplink by CB.

In order to achieve the above object, according to another aspect of the present invention, a CB uplink transmission device is provided, including: a sending module, configured to notify a terminal of a CB-RNTI and a predetermined rule, and send the uplink corresponding to the CB-RNTI to the terminal Scheduling authorization signaling, wherein the predetermined rule includes that the resource size used by the terminal for CB uplink transmission is the resource size of the cluster selected by the terminal, and the uplink scheduling signaling is used to notify the resource information allocated for the terminal, and the resource information includes the resources used for CB uplink transmission The size and location of resources of multiple clusters; the transmission module is used to perform CB uplink transmission according to predetermined rules and resource information.

Through the present invention, the arrangement rules of allocated resources are stipulated and the terminal is notified of the arrangement rules and the size of the resources used by the terminal, and the terminal performs CB uplink transmission according to the above information obtained, which solves the problem that the resource for CB uplink transmission has not been pointed out The allocation method and the process of how the terminal uses the allocated resources for CB uplink transmission reduce the overhead of PDCCH, reduce the probability of terminal collision, alleviate the load of PDCCH common search space, and reduce the frequency domain scheduling or PUSCH The influence of frequency hopping improves the overall performance of the contention-based uplink signaling scheme.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the present invention and constitute a part of the application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations to the present invention. In the attached picture:

FIG. 1 is a schematic diagram of an uplink data transmission process in an LTE system according to related technologies;

FIG. 2 is a schematic diagram of a contention-based uplink signal transmission process according to related technologies;

FIG. 3 is a schematic structural diagram of a PRB in an LTE system according to related technologies;

FIG. 4 is a schematic diagram of PUSCH centralized resource allocation in an LTE system according to related technologies;

FIG. 5 is a schematic diagram of PUSCH discontinuous resource allocation in an LTE system according to related technologies;

FIG. 6 is a flowchart of a CB uplink transmission method according to Embodiment 1 of the method of the present invention;

FIG. 7 is a flowchart of a CB uplink transmission method according to Embodiment 2 of the method of the present invention;

FIG. 8 is a flowchart of a CB uplink transmission method according to Embodiment 3 of the method of the present invention;

FIG. 9 is a flowchart of a CB uplink transmission method according to Embodiment 4 of the method of the present invention;

FIG. 10 is a schematic diagram of resource allocation according to Embodiment 1 of the present invention;

FIG. 11 is a schematic diagram of contention-based uplink transmission resource allocation according to Examples 1 and 3 of the present invention;

FIG. 12 is a schematic diagram of contention-based uplink transmission resource allocation according to Example 2 of the present invention;

FIG. 13 is a schematic diagram of contention-based uplink transmission resource allocation according to Example 4 of the present invention;

Fig. 14 is a structural block diagram of a CB uplink transmission device according to an embodiment of the present invention.

Detailed ways

Functional Overview

Considering the problems existing in the prior art, the embodiment of the present invention provides a CB uplink transmission scheme, the processing principle of which is: the network side notifies the terminal of the resources allocated by the network side for the terminal through the uplink scheduling authorization signaling; The terminal performs CB uplink transmission through the above resources. The resources allocated by the network side may be located between the resources occupied by the uplink control signaling and the resources occupied by frequency hopping, so as to consider the impact of the resources that may be occupied by frequency hopping on the above resources, so that the above resources can be allocated between multiple uplink subframes. It can still be used within the range; or, the network side can also specify the resource size used by the terminal in CB uplink transmission, and notify the terminal of the resource size and location allocated for it so that the terminal can use the resource for CB uplink transmission; or, it can also It stipulates the resource size used by the terminal in CB uplink transmission and the arrangement rules of resources allocated by the network side for the terminal, and notifies the terminal of the allocated resource size so that the terminal can use the resource for CB uplink transmission. This scheme reduces the overhead of PDCCH, reduces the probability of terminal collision, eases the load of PDCCH common search space, and reduces the impact on frequency domain scheduling or PUSCH frequency hopping, and improves the overall performance of the contention-based uplink signal transmission scheme. performance.

Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

Method embodiment one

According to an embodiment of the present invention, a CB uplink transmission method is provided. FIG. 6 is a flowchart of a CB uplink transmission method according to Embodiment 1 of the method of the present invention. As shown in FIG. 6 , the method includes the following steps S602 to step S604:

Step S602, the network side notifies the terminal of one or more shared resource identifiers CB-RNTI, and sends the uplink scheduling grant signaling corresponding to one or more CB-RNTIs to the terminal, wherein the uplink scheduling grant signaling is used to notify the terminal The resources allocated for CB uplink transmission are located between the resources occupied by the uplink control signaling and the resources occupied by frequency hopping, and there is a one-to-one correspondence between the CB-RNTI and the uplink scheduling grant signaling.

Step S604, the terminal performs CB uplink transmission through resources.

Preferably, in step S602, the network side notifies the terminal of one or more CB-RNTIs through a predetermined method, wherein the predetermined method includes at least one of the following: system broadcast message, RRC dedicated signaling, and preset CB-RNTI value. The format of the uplink authorization signaling includes at least one of the following: downlink control information DCI format0 using centralized uplink resource allocation, and DCI format using discontinuous resource allocation. The uplink scheduling grant signaling is used to notify the resources allocated to the terminal for CB uplink transmission on multiple subframes. The above multiple subframes include at least one of the following: a fixed number of multiple subframes, a configurable number of multiple subframes, multiple subframes from the first subframe of the multiple subframes to the end of the terminal receiving new uplink grant signaling frame, multiple subframes from the first subframe of multiple subframes to when the CB uplink transmission function is disabled. The CB uplink transmission function is disabled by a predetermined method, wherein the predetermined method includes at least one of the following: radio resource control RRC dedicated signaling, media access control MAC protocol data unit PDU, physical downlink control signaling, and system information change function.

其中，N_RB ^UL为上行系统带宽对应的物力资源块的数量，在N_RB ^HO为奇数的情况下，

否则，

N_RB ^HO为PUSCH跳频偏移。Wherein, the uplink control signaling includes at least one of the following: channel quality indicator CQI, precoding matrix index (Pre-coding Matrix index, PMI for short), rank indicator (Rank Indicator, RI for short), uplink ACK/NACK, An uplink scheduling request (Scheduling Request, SR for short). The resources occupied by frequency hopping are represented by the physical uplink shared channel PUSCH frequency hopping range N _RB ^PUSCH ,

Among them, N _RB ^UL is the number of physical resource blocks corresponding to the uplink system bandwidth. When N _RB ^HO is an odd number,

otherwise,

N _RB ^HO is the PUSCH frequency hopping offset.

Preferably, the network side can adjust the PUSCH frequency hopping offset through high layer signaling configuration according to whether to activate CB uplink transmission.

In step S604, the CB uplink transmission by the terminal through resources includes: the terminal selects a resource from the resources notified by the uplink authorization signaling corresponding to one or more CB-RNTIs. A resource; use the CB-RNTI corresponding to the selected resource to perform uplink transmission scrambling, and use the selected resource to perform CB uplink transmission.

Method embodiment two

According to an embodiment of the present invention, a CB uplink transmission method is provided. FIG. 7 is a flowchart of a CB uplink transmission method according to Embodiment 2 of the method of the present invention. As shown in FIG. 7 , the method includes the following steps S702 to step S704:

Step S702, the network side notifies the terminal of a CB-RNTI and a predetermined rule, and sends an uplink scheduling authorization signaling corresponding to the CB-RNTI to the terminal, wherein the predetermined rule includes that the resource size used by the terminal for CB uplink transmission is N, and the uplink scheduling The signaling is used to notify the resource information allocated to the terminal. The resource information includes the resource location and the allocated resource size. The allocated resource size is M×N, and M is a positive integer.

Step S704, the terminal performs CB uplink transmission according to predetermined rules and resource information.

Preferably, in step S702, the resources notified by the uplink grant signaling can be allocated through discontinuous resource allocation, or can also be allocated through continuous resource allocation (that is, centralized resource allocation), and the network side can The resource allocation method adopted is selected according to the situation of free resources. The network side notifies the terminal of a CB-RNTI in a predetermined manner, wherein the predetermined manner includes at least one of the following: system broadcast message, RRC dedicated signaling, and preset CB-RNTI value.

In step S704, the CB uplink transmission performed by the terminal according to predetermined rules and resource information includes: the terminal divides the resource indicated by the resource information into M blocks according to the sequence of frequency domain positions, where the size of each block of M resources is N; the terminal A resource is selected from the M resources for CB uplink transmission. Wherein, the terminal selects a resource from the M resources for CB uplink transmission includes: the terminal randomly selects a resource from the M resources with equal probability for CB uplink transmission, and performs scrambling with the corresponding CB-RNTI.

Method embodiment three

According to an embodiment of the present invention, a CB uplink transmission method is provided. FIG. 8 is a flowchart of a CB uplink transmission method according to Embodiment 3 of the method of the present invention. As shown in FIG. 8 , the method includes the following steps from step S802 to step S804:

Step S802, the network side notifies the terminal of a CB-RNTI, the first predetermined rule and the second predetermined rule, and sends high-level signaling to the terminal, wherein the first predetermined rule includes: the size of the resource used by the terminal for CB uplink transmission is N , the second predetermined rule includes: arranging rules for resources allocated by the network side for CB uplink transmission for the terminal, high-level signaling is used to notify resource information allocated for the terminal, the resource information includes the allocated resource size, the allocated resource size It is M×N, and M is a positive integer.

Step S804, the terminal performs CB uplink transmission according to the first predetermined rule, the second predetermined rule and resource information.

其中，N_RB ^UL为上行系统带宽对应的物力资源块的数量，在N_RB ^HO为奇数的情况下，

否则，N_RB ^HO为PUSCH跳频偏移。Preferably, in step S802, the terminal performing CB uplink transmission according to the first predetermined rule, the second predetermined rule and resource information includes: receiving an uplink scheduling authorization signaling from the network side for activating CB uplink transmission of the terminal at the terminal In the case of , the terminal performs CB uplink transmission according to the first predetermined rule, the second predetermined rule and resource information. When the terminal receives an uplink scheduling authorization signaling from the network side for deactivating the CB uplink transmission of the terminal, the terminal stops using resources determined according to the first predetermined rule, the second predetermined rule, and resource information to perform CB uplink transmission . The network side notifies the terminal of a CB-RNTI in a predetermined manner, wherein the predetermined manner includes at least one of the following: system broadcast message, RRC dedicated signaling, and preset CB-RNTI value. The second predetermined rule includes: the resources allocated by the network side for the terminal for CB uplink transmission are located between the resources occupied by uplink control signaling and the resources occupied by frequency hopping, and evenly distributed between the resources occupied by frequency hopping side and next to the resources occupied by frequency hopping. The uplink control signaling includes at least one of the following: channel quality indicator CQI, precoding matrix index PMI, rank indication RI, uplink ACK/NACK, and uplink scheduling request SR. The resources occupied by frequency hopping are represented by PUSCH frequency hopping range N _RB ^PUSCH ,

Among them, N _RB ^UL is the number of physical resource blocks corresponding to the uplink system bandwidth. When N _RB ^HO is an odd number,

otherwise, N _RB ^HO is the PUSCH frequency hopping offset.

In step S804, the terminal's CB uplink transmission according to the first predetermined rule, the second predetermined rule and resource information includes: the terminal determines the frequency domain position of the resource for CB uplink transmission allocated by the network side according to the N _RB ^HO and the M value, Among them, N _RB ^HO is the PUSCH frequency hopping offset; the terminal divides the resources with determined frequency domain positions into M blocks according to the order of frequency domain positions, wherein, the size of each block of M blocks of resources is N; the terminal selects resources from the M blocks of resources A resource is selected for CB uplink transmission. Specifically, the terminal randomly selects one piece of resources from M pieces of resources according to equal probability to perform CB uplink transmission, and uses the corresponding CB-RNTI to perform scrambling.

Preferably, the above method further includes: the network side adjusts the PUSCH frequency hopping offset according to whether the CB uplink transmission is activated. The uplink scheduling grant signaling is also used to notify the terminal to close the CB uplink transmission function

Method Embodiment Four

According to an embodiment of the present invention, a CB uplink transmission method is provided. FIG. 9 is a flowchart of a CB uplink transmission method according to Embodiment 4 of the method of the present invention. As shown in FIG. 9, the method includes the following steps S902 to step S904:

Step S902, the network side notifies the terminal of a CB-RNTI and a predetermined rule, and sends an uplink scheduling authorization signaling corresponding to the CB-RNTI to the terminal, wherein the predetermined rule includes that the resource size used by the terminal for CB uplink transmission is the cluster selected by the terminal The uplink scheduling signaling is used to notify the resource information allocated for the terminal, and the resource information includes the resource size and location of multiple clusters used for CB uplink transmission.

Step S904, the terminal performs CB uplink transmission according to predetermined rules and resource information.

Preferably, each of the plurality of clusters in step S902 is a group of continuous resource blocks, and each cluster is separated by at least one resource block in the frequency domain. The network side notifies the terminal of a CB-RNTI in a predetermined manner, wherein the predetermined manner includes at least one of the following: system broadcast message, RRC dedicated signaling, and preset CB-RNTI value.

Preferably, in step S904, performing CB uplink transmission by the terminal according to predetermined rules and resource information includes: the terminal selects a resource cluster from multiple clusters indicated by the resource information to perform CB uplink transmission. The terminal selects a cluster of resources from multiple clusters indicated by the resource information for CB uplink transmission including: the terminal randomly selects a cluster of resources from multiple clusters with equal probability for CB uplink transmission, and uses the corresponding CB-RNTI to add disturb.

Preferably, after the terminal performs CB uplink transmission according to predetermined rules and resource information, the above method further includes: the network side receives the CB uplink transmission data of the terminal according to the resource information and predetermined rules.

The implementation process of the embodiment of the present invention will be described in detail below with reference to examples.

Embodiment one

The contention-based uplink signal transmission method includes the following two processes: the base station notifies the terminal of resource allocation for contention-based uplink signal transmission, and the terminal performs contention-based uplink signal transmission. The specific process includes the following steps:

Step 11, the network side notifies the terminal of the CB-RNTI used to identify the contention-based uplink transmission. The above process of notifying the CB-RNTI may be notified through a system broadcast message or RRC dedicated signaling, or the terminal may obtain the CB-RNTI by pre-fixing the value of the CB-RNTI. The number of CB-RNTIs that the network side notifies the terminal may be one or more.

上行控制信令包括以下至少之一：CQI、预编码矩阵索引、秩指示、上行ACK/NACK、上行调度请求。进一步地，网络侧可以根据是否激活基于竞争的上行传输来调整pusch-HoppingOffset的值，从而达到预留用于基于竞争的上行传输的资源的目的，具体地，调整pusch-HoppingOffset是通过高层信令(包括RRC信令、广播类型信令等)配置来实现的。进一步地，如图10所示，上述分配的资源为RB的整数倍。Step 12: The network side notifies the terminal through the uplink authorization signaling corresponding to the CB-RNTI to allocate resources that can be used for contention-based uplink transmission. The above-mentioned resources are located in the PUCCH resource blocks occupied by the uplink control signaling and can be used for PUSCH frequency hopping between resource blocks. Among them, the resource blocks that can be used for PUSCH frequency hopping are represented by PUSCH_Hopping_Range, and the size of PUSCH_Hopping_Range N _RB ^PUSCH is determined by the high-level parameter PUSCH frequency hopping offset (pusch-HoppingOFFSet) N _RB ^HO ,

The uplink control signaling includes at least one of the following: CQI, precoding matrix index, rank indication, uplink ACK/NACK, and uplink scheduling request. Further, the network side can adjust the value of pusch-HoppingOffset according to whether contention-based uplink transmission is activated, so as to achieve the purpose of reserving resources for contention-based uplink transmission. Specifically, the adjustment of pusch-HoppingOffset is through high-level signaling (including RRC signaling, broadcast type signaling, etc.) configuration to achieve. Further, as shown in FIG. 10 , the resources allocated above are integer multiples of RBs.

The network side notifies the terminal that the network side starts from the predetermined uplink subframe through the uplink scheduling grant (UL Grant) signaling of the CB-RNTI identifier sent on the PDCCH (that is, the CRC attached to the UL Grant is scrambled with the CB-RNTI). The resources allocated on a sequence of uplink subframes that can be used for contention-based uplink transmission, the corresponding relationship between the predetermined uplink subframe i and the subframe k carrying the UL Grant sent by the PDCCH is i=k+4; further, the above A sequence of uplink subframes may be a fixed number L of uplink subframes or a configurable number L' of uplink subframes, that is, i, i+1,...i+L-1 subframes or i, i+1,...i+L'-1 subframes, or the above-mentioned sequence of uplink subframes may also continue until the new uplink scheduling grant signaling corresponding to the above-mentioned CB-RNTI is received (that is, resource change) or/and the contention-based uplink transmission function is disabled. Further, the format of the uplink grant signaling may be the DCI format 0 adopting centralized uplink resource allocation in LTE or the newly added DCI format used for discontinuous resource allocation in LTE-A.

Step 13, the terminal can obtain one or more resources that can be used for contention-based uplink transmission according to the number of CB-RNTIs; the terminal can randomly select one of the above resources for contention-based uplink transmission with a medium probability, and use the corresponding The CB-RNTI performs scrambling for the uplink transmission.

Embodiment two

The contention-based uplink signal transmission method includes the following two processes: the base station notifies the terminal of resource allocation for contention-based uplink signal transmission, and the terminal performs contention-based uplink signal transmission. The specific process includes the following steps:

Step 21, the network side notifies the terminal of the CB-RNTI used to identify the contention-based uplink transmission, and there is only one CB-RNTI. The above process of notifying the CB-RNTI may be notified through a system broadcast message or RRC dedicated signaling, or the terminal may obtain the CB-RNTI by pre-fixing the value of the CB-RNTI. Further, the network side needs to pre-set the size of resources used by the terminal for each contention-based uplink transmission as N RBs.

Step 22, the network side notifies the terminal network side of the uplink scheduling grant (UL Grant) signaling of the CB-RNTI identifier sent on the PDCCH (that is, the CRC attached to the UL Grant is scrambled with the CB-RNTI). The RB resources allocated above can be used for contention-based uplink transmission, wherein, the corresponding relationship between the predetermined uplink subframe i and the subframe k in which the PDCCH sends UL Grant signaling is i=k+4. The resource block size notified by the above signaling is an integer multiple of N, and the uplink grant signaling can support discontinuous resource allocation, thereby indicating all idle uplink resource blocks.

Step 23, the terminal reads the above-mentioned CB-RNTI scrambled uplink authorization signaling according to the CB-RNTI blind detection PDCCH, so as to obtain M*N RB resources on the corresponding uplink subframe that can be used to send contention-based uplink transmission.

Step 24, the terminal divides the above-mentioned M*N RBs into M blocks with a length of N RBs according to predetermined rules, and the terminal selects one of the M blocks of resources for sending contention-based uplink transmission, and the uplink transmission uses CB-RNTI to add disturb. Further, the predetermined rule is based on the frequency domain position order of RBs, and is known by the network side and the terminal side; further, the terminal randomly selects one block from M blocks of resources with equal probability to send contention-based uplink transmission.

Embodiment three

The contention-based uplink signal transmission method includes the following two processes: the base station notifies the terminal of resource allocation for contention-based uplink signal transmission, and the terminal performs contention-based uplink signal transmission. The specific process includes the following steps:

Step 31: The network side notifies the terminal of the CB-RNTI used to identify the contention-based uplink transmission. There is one and only one CB-RNTI mentioned above. The CB-RNTI can be notified by system broadcast message or RRC dedicated signaling, or by pre-fixed setting The CB-RNTI value is used to notify the terminal of the CB-RNTI. In addition, the network side also needs to pre-set the size of resources used by the terminal for each contention-based uplink transmission as N RBs.

In step 32, the network side notifies the terminal that the allocated resource size is M*N RB through high layer signaling. The resources allocated by the network side for contention-based uplink transmission (that is, the above M*N RB resources) are located in the PUCCH resource blocks occupied by uplink control signaling and the resource blocks available for PUSCH frequency hopping (indicated by PUSCH_Hopping_Range) Between, the size of PUSCH_Hopping_Range N _RB ^PUSCH is determined by the upper layer parameters pusch-HoppingOffset, N _RB ^HO , in The uplink control signaling includes at least one of the following: CQI, precoding matrix index, rank indication, uplink ACK/NACK, and uplink scheduling request. Further, the network side may adjust the value of the pusch-HoppingOffset according to whether to activate contention-based uplink transmission, so as to achieve the purpose of reserving resources for contention-based uplink transmission. Further, the size of the above-mentioned allocated resource blocks is an integer multiple of N and is evenly distributed in the upper and lower two "gap between PUCCH resource blocks occupied by uplink control signaling and PUSCH_Hopping_Range", and is next to PUSCH_Hopping_Range.

Specifically, the network side can activate or deactivate the "contention-based uplink transmission" function through the uplink scheduling grant (UL Grant) signaling identified by the CB-RNTI sent on the PDCCH, that is, the above-mentioned high-level signaling can be Uplink scheduling grant signaling.

Step 33, if the terminal obtains the above-mentioned activation command, according to the pusch-HoppingOffset, the NRBHO parameter and the value M notified, it can calculate the frequency domain position of the M*N RB allocated by the network side that can be used for contention-based uplink transmission; if the terminal needs Perform contention-based uplink transmission, divide the above M*N RB into M blocks according to predetermined rules, select a resource from M blocks for contention-based uplink transmission, and use CB-RNTI scrambling for the uplink transmission. Further, the predetermined The rule can be the frequency domain position sequence of the above-mentioned M*N RB, and is known to the network side and the terminal side; further, the terminal randomly selects a resource from the above-mentioned M blocks with equal probability to perform contention-based uplink transmission. On the other hand, if the terminal obtains the above-mentioned deactivation command, it terminates the use of the above-mentioned M*N RB resources for contention-based uplink transmission.

It should be noted that the second predetermined rule in this embodiment is that the resources used for CB uplink transmission are located between the resources occupied by uplink control signaling and the resources occupied by frequency hopping, and are evenly distributed among the resources occupied by frequency hopping. On both sides of the resource and next to the resources occupied by frequency hopping. In practical applications, the second predetermined rule can be flexibly configured according to the situation of idle resources, and the content of the second predetermined rule is not limited to the specific rules given in this embodiment.

Embodiment four

The contention-based uplink signal transmission method includes the following two processes: the base station notifies the terminal of resource allocation for contention-based uplink signal transmission, and the terminal performs contention-based uplink signal transmission. The specific process includes the following steps:

Step 41: The network side notifies the terminal of the CB-RNTI used to identify the contention-based uplink transmission. There is only one CB-RNTI above, and the CB-RNTI can be notified through a system broadcast message or RRC dedicated signaling, or through a pre-fixed setting Notify the terminal of the CB-RNTI by means of the CB-RNTI value.

Step 42, the network side notifies the terminal network side to use the CB-RNTI to scramble the CRC attached to the UL grant through the uplink scheduling grant (UL grant) signaling of the CB-RNTI flag sent on the PDCCH (that is, the CRC attached to the UL grant) The resources of P clusters (Cluster) allocated on the uplink subframe for contention-based uplink transmission, the correspondence between the corresponding uplink subframe i and the subframe k sent by the PDCCH is i=k+4. Further, the clusters notified by the above signaling may be a group of continuous RB resources, and the P cluster resources may be non-contiguous in the frequency domain, that is, each cluster is separated by at least 1 RB.

Step 43: The terminal reads the above-mentioned CB-RNTI scrambled uplink authorization signaling according to the CB-RNTI blind detection PDCCH, so as to obtain P cluster resources on the corresponding uplink subframe that can be used to send contention-based uplink transmission. The terminal selects a cluster from the P clusters according to a predetermined rule to send a contention-based uplink transmission, and the uplink transmission uses the above-mentioned CB-RNTI for scrambling. Further, the above predetermined rule is that the terminal randomly selects one cluster from the P clusters with equal probability to send the contention-based uplink transmission.

Step 44, since the terminal and the network side agree that the resource size used for each contention-based uplink transmission is determined by the selected cluster, that is, the resource size of the contention-based uplink transmission is equal to the resource size of the selected cluster, therefore, the network side According to the size and position of the allocated cluster, the uplink transmission scrambled by CB-RNTI can be received.

Example 1

This example describes in detail a specific application example of the method provided in Embodiment 1.

那么

其中

网络侧需要在该分量载波上激活基于竞争的上行传输功能，通知终端两个CB-RNTI(CB-RNTI 1和CB-RNTI 2)，网络侧为基于竞争的上行传输分配了两块大小为2个RB的资源位于PUSCH_Hopping_Range的两侧并紧挨着，如图11所示：Assume that in the LTE-A system, the system bandwidth of a component carrier is 10MHz, and the corresponding number of PRBs is The size of PUSCH_Hopping_Range N _RB ^PUSCH is determined by the high-level parameters pusch-HoppingOffset, N _RB ^HO , assuming that the network side is configured

So

in

The network side needs to activate the contention-based uplink transmission function on the component carrier, notify the terminal of two CB-RNTIs (CB-RNTI 1 and CB-RNTI 2), and the network side allocates two contention-based uplink transmissions with a size of 2 RB resources are located on both sides of PUSCH_Hopping_Range and next to each other, as shown in Figure 11:

The network side notifies the terminal network side through the uplink scheduling grant (UL Grant) signaling identified by CB-RNTI 1 sent on the PDCCH on subframe k (that is, the CRC attached to the UL Grant is scrambled with CB-RNTI 1) The allocated resource location and resource size that can be used for a piece of contention-based uplink transmission starting from uplink subframe k+4, that is, the two RBs next to the upper part of PUSCH_hopping_range as shown in Figure 11, the network side in subframe k In addition, the uplink scheduling grant (UL Grant) signaling identified by CB-RNTI 2 sent on the PDCCH (that is, the CRC attached to the UL Grant is scrambled with CB-RNTI 1) notifies the terminal network side of the allocation The resource location and resource size that can be used for another block of contention-based uplink transmission starting from uplink subframe k+4, that is, the 2 RBs immediately below the PUSCH_hopping_range as shown in FIG. 11 . Or the network side can also use CB-RNTI 1 to notify the first and third RBs of the above 4 RBs for transmission through discontinuous allocation, and use CB-RNTI 2 to notify the second and third RBs of the above 4 RBs The fourth RB transmits, thereby obtaining frequency diversity gain.

The terminal can obtain the above two RB resources from subframe k through CB-RNTI 1 and CB-RNTI 2, starting from uplink subframe k+4, as long as the network does not close the contention-based uplink transmission function and/or does not receive For the new PDCCH scrambled by CB-RNTI1 and CB-RNTI 2, when the terminal needs to send contention-based uplink transmission, it can randomly select one from the two resources indicated by CB-RNTI 2 indicated by CB-RNTI 1 above with medium probability It is used for contention-based uplink transmission, and uses the corresponding CB-RNTI to perform uplink transmission scrambling.

Example 2

This example describes in detail a specific application example of the method provided in Embodiment 2.

网络侧根据负载情况可利用闲散的RB资源用于终端发送基于竞争的上行传输。Assume that in the LTE-A system, the system bandwidth of a component carrier is 10MHz, and the corresponding number of PRBs is

According to the load condition, the network side can use idle RB resources for the terminal to send contention-based uplink transmission.

The network side notifies the terminal of the CB-RNTI used to identify the contention-based uplink transmission, and there is only one CB-RNTI. Further, the CB-RNTI may be notified through a system broadcast message or RRC dedicated signaling, or the aforementioned terminal may be notified by pre-fixedly setting a CB-RNTI value. The network presets the size of the resources that the terminal uses for each contention-based uplink transmission to be 2 RBs.

The network side notifies the terminal network side of the uplink scheduling grant (UL Grant) signaling (that is, the CRC attached to the UL Grant is scrambled with the CB-RNTI) through the uplink scheduling grant (UL Grant) signaling sent on the PDCCH on the subframe k For the RB resources allocated on the uplink subframe k+4 that can be used for contention-based uplink transmission, the network side knows in advance the number of idle RBs and frequency domain positions on the uplink subframe k+4, and the network side can use these idle RB resources It is configured for contention-based uplink transmission. Assuming that there are 10 idle RBs, the network side instructs the terminal to use 8 RBs for contention-based uplink transmission through CB-RNTI scrambling UL Grant, as shown in Figure 12. According to the number of idle RBs, the network side can dynamically notify available resources for contention-based uplink transmission in the above manner.

The terminal reads the above-mentioned CB-RNTI scrambled uplink authorization signaling according to the CB-RNTI blind detection PDCCH, so as to obtain that 8 RB resources on the uplink subframe k+4 can be used to send contention-based uplink transmission. The terminal divides the 8 RBs into 4 blocks with a length of 2 RBs according to the sequence of frequency domain positions of the above 8 RBs. A terminal that needs to send contention-based uplink transmission may randomly select one of the above four blocks of resources with medium probability to send contention-based uplink transmission, and the uplink transmission is scrambled by using CB-RNTI.

Example 3

This example describes in detail a specific application example of the method provided in Embodiment 3.

网络侧需要在该分量载波上激活基于竞争的上行传输功能，通知终端用于标识基于竞争的上行传输所用的CB-RNTI，上述CB-RNTI有且只有一个。进一步地，可以通过系统广播消息或者RRC专用信令通知CB-RNTI，或者通过预先固定设置CB-RNTI值的方式通知上述终端。而且，网络侧预先设定了终端每次用于基于竞争的上行传输的资源大小为2个RB，而且网络侧预先设定了分配的可用于基于竞争的上行传输的资源的分布规则，即资源位于被上行控制信令所占用的PUCCH资源块和可用于PUSCH跳频的资源块(用PUSCH_Hopping_Range表示)之间，PUSCH_Hopping_Range的大小N_RB ^PUSCH由高层参数pusch-HoppingOffset，N_RB ^HO决定，其中

其中，上行控制信令所占用的PUCCH资源包括CQI，上行ACK/NACK所占用的上行资源。进一步地，网络侧可以根据是否激活基于竞争的上行传输来调整pusch-HoppingOffset的值，从而达到预留用于基于竞争的上行传输的资源的目的。假定网络侧配置

那么

如图11所示。Assume that in the LTE-A system, the system bandwidth of a component carrier is 10MHz, and the corresponding number of PRBs is

The network side needs to activate the contention-based uplink transmission function on the component carrier, and notify the terminal of the CB-RNTI used to identify the contention-based uplink transmission, and there is only one CB-RNTI. Further, the CB-RNTI may be notified through a system broadcast message or RRC dedicated signaling, or the aforementioned terminal may be notified by pre-fixedly setting a CB-RNTI value. Moreover, the network side pre-sets the size of the resources that the terminal uses for contention-based uplink transmission each time as 2 RBs, and the network side pre-sets the distribution rules of the allocated resources that can be used for contention-based uplink transmission, that is, resource Located between the PUCCH resource blocks occupied by uplink control signaling and the resource blocks available for PUSCH frequency hopping (indicated by PUSCH_Hopping_Range), the size of PUSCH_Hopping_Range N _RB ^PUSCH is determined by the high-level parameters pusch-HoppingOffset, N _RB ^HO , where

Wherein, the PUCCH resource occupied by the uplink control signaling includes the CQI and the uplink resource occupied by the uplink ACK/NACK. Further, the network side can adjust the value of pusch-HoppingOffset according to whether to activate contention-based uplink transmission, so as to achieve the purpose of reserving resources for contention-based uplink transmission. Assume network side configuration

So

As shown in Figure 11.

The network side pre-configures 4 RB resources and equally distributes them in the upper and lower "the gap between the PUCCH resource block occupied by the uplink control signaling and the PUSCH_Hopping_Range", and is next to the PUSCH_Hopping_Range. The network side notifies the terminal through a broadcast message or an RRC dedicated message that 2 resources are allocated for contention-based uplink transmission; the terminal can know the network side according to the resource block size for each contention-based uplink transmission preset by the network. 4 RBs are allocated.

The network side can activate or deactivate the "contention-based uplink transmission" function through the uplink scheduling grant (UL Grant) signaling identified by the CB-RNTI sent on the PDCCH.

和终端获知网络分配的RB个数为4，可计算出网络侧分配的可用于基于竞争的上行传输的4个RB的频域位置，即，PUSCH_hopping_Range的上下各2个RB。If the terminal obtains the above activation command, according to the parameter N _RB ^HO

Knowing that the number of RBs allocated by the network is 4, the terminal can calculate the frequency domain positions of the 4 RBs allocated by the network side that can be used for contention-based uplink transmission, that is, 2 RBs above and below the PUSCH_hopping_Range.

If the terminal needs to perform contention-based uplink transmission, it is divided into 2 blocks with a length of 2 RBs according to the frequency domain position sequence of the above-mentioned 4 RBs, and the terminal randomly selects a resource from the above-mentioned 2 blocks with equal probability for contention-based uplink transmission. The uplink transmission is scrambled by CB-RNTI.

If the terminal obtains the above-mentioned deactivation command, it terminates contention-based uplink transmission using the above-mentioned 4 RB resources.

Example 4

This example describes in detail a specific application example of the method provided in Embodiment 4.

Assume that in the LTE-A system, the system bandwidth of a component carrier is 10MHz, and the corresponding number of PRBs is According to the load condition, the network side can use idle RB resources for the terminal to send contention-based uplink transmission.

The network side notifies the terminal of the CB-RNTI used to identify the contention-based uplink transmission, and there is only one CB-RNTI. Further, the CB-RNTI may be notified through a system broadcast message or RRC dedicated signaling, or the aforementioned terminal may be notified by pre-fixedly setting a CB-RNTI value.

The network side configures the idle resources on the uplink subframe k+4 for contention-based uplink transmission according to the load condition, and the network side transmits the uplink scheduling grant (UL grant) signaling identified by the CB-RNTI on the PDCCH on the subframe k (That is, the CRC attached to the UL grant is scrambled with the CB-RNTI) Notify the terminal network side of the P clusters (Clusters) that can be used for contention-based uplink transmission allocated on the uplink subframe k+4 resources, each cluster is a group of continuous RB resources and each cluster of resources is discontinuous in the frequency domain. As shown in FIG. 13 , in this example, P is 3, the size of the first cluster is 2 RBs, the size of the second cluster is 1 RB, and the size of the third cluster is 3 RBs.

The terminal reads the above-mentioned CB-RNTI scrambled uplink authorization signaling according to the CB-RNTI blind detection PDCCH, so as to obtain the resources of the three clusters on the uplink subframe k+4 that can be used to send contention-based uplink transmissions, and obtain each cluster The size and frequency domain location of , as shown in Figure 13.

A terminal that needs to send contention-based uplink transmission may randomly select a cluster from the resources of the above three clusters with medium probability to send contention-based uplink transmission, and the uplink transmission is scrambled by using CB-RNTI.

The network side receives the uplink transmission scrambled by the CB-RNTI according to the size and position of the allocated cluster.

Device embodiment one

According to an embodiment of the present invention, a CB uplink transmission device is provided, and the device is used to implement the CB uplink transmission method described in the first method embodiment above. Fig. 14 is a structural block diagram of a CB uplink transmission device according to an embodiment of the present invention. As shown in Fig. 14, the device includes: a sending module 142, configured to notify the terminal of one or more CB-RNTIs, and send one or more CB-RNTIs to the terminal Uplink scheduling grant signaling corresponding to multiple CB-RNTIs, wherein the uplink scheduling grant signaling is used to notify the resources allocated for the terminal for CB uplink transmission, and the resources are located between the resources occupied by the uplink control signaling and the resources occupied by frequency hopping There is a one-to-one correspondence between the CB-RNTI and the uplink scheduling grant signaling among the resources; the transmission module 144 is connected to the sending module 142, and is used for CB uplink transmission through resources.

It should be noted that the CB uplink transmission device described in the device embodiment corresponds to the above method embodiment, and its specific implementation method has been described in detail in the method embodiment, and will not be repeated here.

Device embodiment two

According to an embodiment of the present invention, a CB uplink transmission device is provided, the device is used to implement the CB uplink transmission method described in the second method embodiment, the device includes: a sending module, used to send a CB-RNTI and a predetermined Informing the terminal of the rule, and sending an uplink scheduling authorization signaling corresponding to the CB-RNTI to the terminal, wherein the predetermined rule includes that the resource size used by the terminal for CB uplink transmission is N, and the uplink scheduling signaling is used to notify the resource information allocated for the terminal, The resource information includes resource location and allocated resource size, the allocated resource size is M×N, and M is a positive integer; the transmission module is connected to the sending module, and is used for CB uplink transmission according to predetermined rules and resource information.

It should be noted that the CB uplink transmission device described in the device embodiment corresponds to the above method embodiment, and its specific implementation method has been described in detail in the method embodiment, and will not be repeated here.

Device Embodiment Three

According to an embodiment of the present invention, a CB uplink transmission device is provided, the device is used to implement the CB uplink transmission method described in the third method embodiment, the device includes: a sending module, used to send a CB-RNTI, the first A predetermined rule and a second predetermined rule notify the terminal and send high-level signaling to the terminal, wherein the first predetermined rule includes: the size of the resource used by the terminal for CB uplink transmission is N, and the second predetermined rule includes: the network side allocates resources for the terminal The resource arrangement rules for CB uplink transmission. The high-level signaling is used to notify the resource information allocated for the terminal. The resource information includes the allocated resource size. The allocated resource size is M×N, and M is a positive integer; the transmission module , connected to the sending module, for performing CB uplink transmission according to the first predetermined rule, the second predetermined rule and resource information.

It should be noted that the CB uplink transmission device described in the device embodiment corresponds to the above method embodiment, and its specific implementation method has been described in detail in the method embodiment, and will not be repeated here.

Device Embodiment Four

According to an embodiment of the present invention, a CB uplink transmission device is provided, the device is used to implement the CB uplink transmission method described in Embodiment 4 of the above method, the device includes: a sending module, used to send a CB-RNTI and a predetermined Notify the terminal of the rule, and send the uplink scheduling authorization signaling corresponding to the CB-RNTI to the terminal, wherein the predetermined rule includes that the resource size used by the terminal for CB uplink transmission is the resource size of the cluster selected by the terminal, and the uplink scheduling signaling is used to notify The resource information allocated by the terminal, the resource information includes the size and location of resources of multiple clusters used for CB uplink transmission; the transmission module, connected to the sending module, is used to perform CB uplink transmission according to predetermined rules and resource information.

It should be noted that the CB uplink transmission device described in the device embodiment corresponds to the above method embodiment, and its specific implementation method has been described in detail in the method embodiment, and will not be repeated here.

To sum up, the CB uplink transmission scheme provided by the embodiment of the present invention reduces the overhead of PDCCH, reduces the probability of terminal collision, alleviates the load of PDCCH common search space, and reduces the frequency domain scheduling or PUSCH frequency hopping at the same time. impact, improving the overall performance of the contention-based uplink signaling scheme.

It should be noted that the steps shown in the flowcharts of the accompanying drawings may be performed in a computer system, such as a set of computer-executable instructions, and that although a logical order is shown in the flowcharts, in some cases, The steps shown or described may be performed in an order different than here.

Obviously, those skilled in the art should understand that each module or each step of the above-mentioned present invention can be realized by a general-purpose computing device, and they can be concentrated on a single computing device, or distributed in a network formed by multiple computing devices Optionally, they can be implemented with program codes executable by computing devices, thus, they can be stored in storage devices and executed by computing devices, or they can be made into individual integrated circuit modules, or they can be integrated into Multiple modules or steps are fabricated into a single integrated circuit module to realize. As such, the present invention is not limited to any specific combination of hardware and software.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (35)

1. the CB ascending transmission method based on competition is characterized in that, comprising:

Network side is with one or more shared resource sign CB-RNTI notice terminals, and send the uplink scheduling authorization signaling of described one or more CB-RNTI correspondences to described terminal, wherein, described uplink scheduling authorization signaling is used to notify the resource that is used for the CB uplink for described terminal distribution, described resource is between the shared resource of the shared resource of upstream control signaling and frequency hopping, and described CB-RNTI and described uplink scheduling authorization signaling are corresponding one by one;

Described terminal is carried out the CB uplink by described resource.

2. method according to claim 1 is characterized in that, described uplink scheduling authorization signaling is used to notify the resource that is used for the CB uplink on a plurality of subframes for described terminal distribution.

3. method according to claim 2, it is characterized in that, described a plurality of subframes comprise following one of at least: a plurality of subframes of fixed qty, a plurality of subframes of configurable number, begin to receive a plurality of subframes that new uplink authorization signaling finishes, begin a plurality of subframes when CB uplink function is closed from first subframes of described a plurality of subframes to described terminal from first subframes of described a plurality of subframes.

4. method according to claim 3, it is characterized in that, described CB uplink function is closed by predetermined way, wherein, described predetermined way comprise following one of at least: radio resource control RRC dedicated signaling, media interviews control Medium Access Control (MAC) Protocol Data Unit PDU, physical down control signaling, changing system information function.

5. method according to claim 1 is characterized in that, described upstream control signaling comprise following one of at least: channel quality indicator CQI, pre-coding matrix index, order indication, uplink ACK/NACK, uplink scheduling request.

6. method according to claim 1 is characterized in that, the shared resource of described frequency hopping Physical Uplink Shared Channel PUSCH frequency hopping scope N _RB ^PUSCHExpression,

Wherein, N _RB ^ULFor the quantity of the material resources piece of up-link bandwidth correspondence, at N _RB ^HOUnder the situation for odd number,

Otherwise, N _RB ^HOBe the skew of PUSCH frequency hopping.

7. method according to claim 6 is characterized in that, described method also comprises:

Described network side disposes by high-level signaling and adjusts described PUSCH frequency hopping skew according to whether activating the CB uplink.

8. method according to claim 1, it is characterized in that, described network side is notified described terminal by predetermined way with described one or more CB-RNTI, wherein, described predetermined way comprise following one of at least: system broadcast message, RRC dedicated signaling, set in advance the CB-RNTI value.

9. method according to claim 1 is characterized in that, the form of described uplink authorization signaling comprise following one of at least: the Downlink Control Information DCI format0, the DCI format that adopts discontinuous resource allocation that adopt centralized ascending resource to distribute.

10. according to each described method in the claim 1 to 9, it is characterized in that described terminal is carried out the CB uplink by described resource and comprised:

Described terminal is selected a resource from the resource that the described uplink authorization signaling of described one or more CB-RNTI correspondences is notified;

Utilize the CB-RNTI of a resource correspondence of described selection to carry out the scrambling of uplink, and utilize a resource of described selection to carry out the CB uplink.

11. a CB ascending transmission method is characterized in that, comprising:

Network side is with a CB-RNTI and pre-defined rule notice terminal, and send the uplink scheduling authorization signaling of described CB-RNTI correspondence to described terminal, wherein, described pre-defined rule comprises that the resource size that described terminal is used for the CB uplink is N, described uplink scheduling signaling is used to notify the resource information into described terminal distribution, described resource information comprises the resource size of resource location and distribution, and the resource size of described distribution is M * N, and M is a positive integer;

Described terminal is carried out the CB uplink according to described pre-defined rule and described resource information.

12. method according to claim 11 is characterized in that, described terminal is carried out the CB uplink according to described pre-defined rule and described resource information and is comprised:

Described terminal is divided into the M piece according to the frequency domain position order resource that described resource information is indicated, and wherein, every resource size in the M piece resource is N;

Described terminal selects a resource to carry out the CB uplink from described M piece resource.

13. method according to claim 12 is characterized in that, described terminal is selected a resource to carry out the CB uplink from described M piece resource to comprise:

Described terminal selects a resource to carry out the CB uplink from described M piece resource according to equiprobability randomly.

14. method according to claim 11 is characterized in that, the resource distribution mode that resource that described uplink authorization signaling is notified adopts comprise following one of at least: centralized resources distributes, discontinuous resource allocation.

15. according to each described method in the claim 11 to 14, it is characterized in that, described network side is notified described terminal by predetermined way with a described CB-RNTI, wherein, described predetermined way comprise following one of at least: system broadcast message, RRC dedicated signaling, set in advance the CB-RNTI value.

16. a CB ascending transmission method is characterized in that, comprising:

Network side is with a CB-RNTI, first pre-defined rule and second pre-defined rule notice terminal, and to terminal transmission high-level signaling, wherein, described first pre-defined rule comprises: the resource size that described terminal is used for the CB uplink is N, described second pre-defined rule comprises: described network side is the arranging rule of the resource that is used for the CB uplink of described terminal distribution, described high-level signaling is used to notify the resource information into described terminal distribution, described resource information comprises the resource size of distribution, the resource size of described distribution is M * N, and M is a positive integer;

Described terminal is carried out the CB uplink according to described first pre-defined rule, described second pre-defined rule and described resource information.

17. method according to claim 16 is characterized in that, described terminal is carried out the CB uplink according to described first pre-defined rule, described second pre-defined rule and described resource information and is comprised:

Described terminal receive from described network side be used to activate under the situation of uplink scheduling authorization signaling of CB uplink of described terminal, described terminal is carried out the CB uplink according to described first pre-defined rule, described second pre-defined rule and described resource information.

18. method according to claim 17, it is characterized in that, under described terminal received situation from the uplink scheduling authorization signaling of the CB uplink that is used for the described terminal of deexcitation of described network side, described terminal stopped to utilize the resource of determining according to described first pre-defined rule, described second pre-defined rule and described resource information to carry out the CB uplink.

19. method according to claim 16, it is characterized in that, described second pre-defined rule comprises: described network side be the resource that is used for the CB uplink of described terminal distribution between the shared resource of the shared resource of upstream control signaling and frequency hopping, and be evenly distributed on the both sides and the shared resource of adjacent described frequency hopping of the shared resource of described frequency hopping.

20. method according to claim 19 is characterized in that, described terminal is carried out the CB uplink according to described first pre-defined rule, described second pre-defined rule and described resource information and is comprised:

Described terminal is according to N _RB ^HODetermine the frequency domain position of the resource that is used for the CB uplink that described network side distributes with the M value, wherein, N _RB ^HOBe the skew of PUSCH frequency hopping;

Described terminal will determine that according to the frequency domain position order resource of frequency domain position is divided into the M piece, and wherein, every resource size in the M piece resource is N;

Described terminal selects a resource to carry out the CB uplink from described M piece resource.

21. method according to claim 20 is characterized in that, described terminal is selected a resource to carry out the CB uplink from described M piece resource to comprise:

Described terminal selects a resource to carry out the CB uplink from described M piece resource according to equiprobability randomly.

22. method according to claim 19 is characterized in that, described upstream control signaling comprise following one of at least: CQI, pre-coding matrix index, order indication, uplink ACK/NACK, uplink scheduling request.

23. method according to claim 19 is characterized in that, the shared resource of described frequency hopping PUSCH frequency hopping scope N _RB ^PUSCHExpression,

Wherein, N _RB ^ULFor the quantity of the material resources piece of up-link bandwidth correspondence, at N _RB ^HOUnder the situation for odd number,

Otherwise,

N _RB ^HOBe the skew of PUSCH frequency hopping.

24. method according to claim 23 is characterized in that, described method also comprises:

Whether described network side basis activates the CB uplink and adjusts described PUSCH frequency hopping skew.

25. according to each described method in the claim 16 to 24, it is characterized in that, described network side is notified described terminal by predetermined way with a described CB-RNTI, wherein, described predetermined way comprise following one of at least: system broadcast message, RRC dedicated signaling, set in advance the CB-RNTI value.

26. a CB ascending transmission method is characterized in that, comprising:

Network side is with a CB-RNTI and pre-defined rule notice terminal, and send the uplink scheduling authorization signaling of described CB-RNTI correspondence to terminal, wherein, described pre-defined rule comprise resource size that described terminal is used for the CB uplink be described terminal select bunch resource size, described uplink scheduling signaling is used to notify the resource information into described terminal distribution, and described resource information comprises the size and the position of a plurality of bunches the resource that is used for the CB uplink;

Described terminal is carried out the CB uplink according to described pre-defined rule and described resource information.

27. method according to claim 26 is characterized in that, each bunch in described a plurality of bunches is one group of continuous Resource Block, and at least one Resource Block of being separated by on frequency domain between described each bunch.

28. method according to claim 26 is characterized in that, described terminal is carried out the CB uplink according to described pre-defined rule and described resource information and is comprised:

Described terminal selects the cluster resource to carry out the CB uplink from indicated a plurality of bunches of described resource information.

29. method according to claim 28 is characterized in that, described terminal is selected the cluster resource to carry out the CB uplink from indicated a plurality of bunches of described resource information to comprise:

Described terminal selects the cluster resource to carry out the CB uplink from described a plurality of bunches according to equiprobability randomly.

30. method according to claim 26 is characterized in that, described terminal is carried out after the CB uplink according to described pre-defined rule and described resource information, and described method also comprises:

Described network side receives the CB uplink transmission data of described terminal according to described resource information and described pre-defined rule.

31. according to each described method in the claim 26 to 30, it is characterized in that, described network side is notified described terminal by predetermined way with a described CB-RNTI, wherein, described predetermined way comprise following one of at least: system broadcast message, RRC dedicated signaling, set in advance the CB-RNTI value.

32. a CB uplink device is characterized in that, comprising:

Sending module, be used for one or more CB-RNTI notice terminals, and send the uplink scheduling authorization signaling of described one or more CB-RNTI correspondences to described terminal, wherein, described uplink scheduling authorization signaling is used to notify the resource that is used for the CB uplink for described terminal distribution, described resource is between the shared resource of the shared resource of upstream control signaling and frequency hopping, and described CB-RNTI and described uplink scheduling authorization signaling are corresponding one by one;

Transport module is used for carrying out the CB uplink by described resource.

33. a CB uplink device is characterized in that, comprising:

Sending module, be used for a CB-RNTI and pre-defined rule notice terminal, and send the uplink scheduling authorization signaling of described CB-RNTI correspondence to described terminal, wherein, described pre-defined rule comprises that the resource size that described terminal is used for the CB uplink is N, and described uplink scheduling signaling is used to notify the resource information into described terminal distribution, and described resource information comprises the resource size of resource location and distribution, the resource size of described distribution is M * N, and M is a positive integer;

Transport module is used for carrying out the CB uplink according to described pre-defined rule and described resource information.

34. a CB uplink device is characterized in that, comprising:

Sending module, be used for a CB-RNTI, first pre-defined rule and second pre-defined rule notice terminal, and to terminal transmission high-level signaling, wherein, described first pre-defined rule comprises: the resource size that described terminal is used for the CB uplink is N, described second pre-defined rule comprises: described network side is the arranging rule of the resource that is used for the CB uplink of described terminal distribution, described high-level signaling is used to notify the resource information into described terminal distribution, described resource information comprises the resource size of distribution, the resource size of described distribution is M * N, and M is a positive integer;

Transport module is used for carrying out the CB uplink according to described first pre-defined rule, described second pre-defined rule and described resource information.

35. a CB uplink device is characterized in that, comprising:

Sending module, be used for a CB-RNTI and pre-defined rule notice terminal, and send the uplink scheduling authorization signaling of described CB-RNTI correspondence to terminal, wherein, described pre-defined rule comprise resource size that described terminal is used for the CB uplink be described terminal select bunch resource size, described uplink scheduling signaling is used to notify the resource information into described terminal distribution, and described resource information comprises the size and the position of a plurality of bunches the resource that is used for the CB uplink;

Transport module is used for carrying out the CB uplink according to described pre-defined rule and described resource information.

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