CN114071475A

CN114071475A - Transmission method, terminal, base station and storage medium of uplink channel

Info

Publication number: CN114071475A
Application number: CN202010788468.7A
Authority: CN
Inventors: 司倩倩; 王磊; 高雪娟
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2022-02-18
Also published as: WO2022028138A1

Abstract

The embodiment of the application provides an uplink channel transmission method, a terminal, a base station and a storage medium, wherein the method comprises the following steps: after determining that the precoding matrix switching diversity is used for sending an uplink channel, dividing resources for transmitting the uplink channel into at least two resource groups, and mapping each resource group to an antenna set through precoding based on the precoding matrix; the antenna set comprises a plurality of physical antennas or a plurality of antenna ports; and transmitting the uplink channel in a diversity mode through the antenna set. According to the method and the device, the resources for transmitting the uplink channel are divided into at least two resource groups, each resource group is mapped to the antenna set through precoding, the uplink channel is transmitted in a diversity mode through the antenna set, the transmission performance of the uplink channel is improved, for cell edge users, the transmission performance of the uplink channel is still good when the channel condition is poor, and the coverage requirement is met.

Description

Transmission method, terminal, base station and storage medium of uplink channel

Technical Field

The present application relates to the field of wireless communications technologies, and in particular, to a transmission method, a terminal, a base station, and a storage medium for an uplink channel.

Background

The uplink channel is used for the terminal to send information to the base station, for example, the uplink control channel is used for the terminal to send scheduling reQuest sr (scheduling reQuest), HARQ (Hybrid Automatic Repeat reQuest ) feedback, and channel Status information csi (channel Status information) and other information to the base station.

However, the uplink channel in the existing NR is transmitted using a single antenna, and for cell edge users, the transmission performance of the uplink channel is poor when the channel condition is poor, and the coverage requirement may not be met.

Therefore, how to provide a method for improving the transmission performance of the uplink channel becomes a problem to be solved urgently.

Disclosure of Invention

The embodiment of the application provides a transmission method, a terminal, a base station and a storage medium of an uplink channel, which are used for solving the defects that the transmission performance of the uplink channel is poor and the coverage requirement cannot be met when the condition of a single-antenna sending channel is poor in the prior art, and realizing the improvement of the transmission performance of the uplink channel.

In a first aspect, an embodiment of the present application provides a method for transmitting an uplink channel, including:

after determining that the precoding matrix switching diversity is used for sending an uplink channel, dividing resources for transmitting the uplink channel into at least two resource groups, and mapping each resource group to an antenna set through precoding based on the precoding matrix; the antenna set comprises a plurality of physical antennas or a plurality of antenna ports;

and transmitting the uplink channel in a diversity mode through the antenna set.

Optionally, according to a transmission method of an uplink channel in an embodiment of the present application, the dividing resources used for transmitting the uplink channel into at least two resource groups includes:

dividing the resources for transmitting the uplink channel into at least two resource groups based on the number of the resources for transmitting the uplink channel divided in the time domain and the number of the resources for transmitting the uplink channel divided in the frequency domain; or

Dividing the resources for transmitting the uplink channel into at least two resource groups based on the number of the determined resource groups; the number of the resource groups is predefined or notified by the base station; and the resource occupied by each resource group is determined based on the uplink channel resource and the number of the resource groups.

Optionally, according to a transmission method of an uplink channel in an embodiment of the present application, the dividing, based on the number of the resources for transmitting the uplink channel divided in the time domain and the number of the resources for transmitting the uplink channel divided in the frequency domain, the resources for transmitting the uplink channel into at least two resource groups includes:

determining that the resources for transmitting the uplink channel are divided into a preset number X in a time domain, and determining that the resources for transmitting the uplink channel are divided into a preset number Y in a frequency domain;

dividing the resources for transmitting the uplink channel based on the preset number X and the preset number Y to obtain at least two resource groups;

wherein, X is a value predefined or notified by the base station or a value determined based on the number of DMRS (Demodulation Reference Signal) symbols and/or the uplink channel format, and Y is a value predefined or notified by the base station or a value determined based on the number of Resource blocks RB (Resource Block) included in the uplink channel.

Optionally, according to a transmission method of an uplink channel in an embodiment of the present application, the method further includes:

if the uplink channel is configured to be repeatedly transmitted, the value of X is an integer value less than or equal to the number of times a of repeated transmission of the uplink channel, or a value that is an even multiple of the number of times a of repeated transmission of the uplink channel.

Optionally, according to the transmission method of an uplink channel in an embodiment of the present application, the number of the determined resource groups is a small value taken from the first number and the second number;

and the first number is a preset resource group number Z, and the second number is determined according to the number N of DMRS symbols contained in the uplink channel, the repetition frequency A of the uplink channel and the number B of RBs contained in the uplink channel.

Optionally, according to the transmission method of the uplink channel in an embodiment of the present application, the second number is determined by calculating according to the following formula, where the second number is min (N, x) a B, and a value of x is 2 or 4;

and if the number of the determined resource groups is the second number, each RB of the uplink channel in each uplink channel repeating time slot comprises min (N, x) resource groups, and each resource group comprises one RB and N/x DMRS symbols.

Optionally, according to the method for transmitting an uplink channel in an embodiment of the present application, if the number of the determined resource groups is the first number, the resource for transmitting the uplink channel is divided into Z resource groups according to a sequence that the resource is divided into different resource groups, then the resource is divided into different RB groups, and then the resource in each RB group is divided into different resource groups.

Optionally, according to the transmission method of an uplink channel in an embodiment of the present application, the mapping each resource group to an antenna set through precoding based on a precoding matrix includes:

the precoding is digital domain precoding or analog precoding, the digital domain precoding is mapped to an antenna set through a precoding matrix, and the analog precoding is mapped to the antenna set through space domain related information.

Optionally, according to the transmission method of the uplink channel in an embodiment of the present application, the precoding matrix is randomly selected from at least two resource groups, or the precoding matrix is used in at least two resource groups based on a predefined order.

Optionally, according to the transmission method of the uplink channel in an embodiment of the present application, the number of rows/columns of the precoding matrix is greater than or equal to the number of physical antennas or the number of antenna ports in the antenna set.

Optionally, according to a transmission method of an uplink channel in an embodiment of the present application, the determining to transmit the uplink channel using precoding matrix switching diversity includes:

based on the instruction of a base station or the stipulation of a protocol, when a common cyclic prefix is used, determining the transmission diversity switched by using a precoding matrix only for an uplink channel with the length of 10-14 symbols; or

Based on the instruction of a base station or the stipulation of a protocol, when an extended cyclic prefix is used, determining the transmission diversity switched by using a precoding matrix only for an uplink channel with the length of 10-12 symbols; or

Determining transmit diversity using precoding matrix switching only for a specific uplink channel format based on an indication of a base station or a specification of a protocol; or

Based on the instruction of the base station or the specification of the protocol, the transmission diversity switched by using the precoding matrix is determined only for the uplink channel hopping within the time slot.

In a second aspect, an embodiment of the present application further provides a method for transmitting an uplink channel, including: after determining that a terminal uses a precoding matrix to switch diversity to send an uplink channel, dividing resources for transmitting the uplink channel into at least two resource groups;

receiving the uplink channel sent by the terminal based on the at least two resource group diversity; the uplink channel is sent through the antenna set diversity after the terminal divides resources for transmitting the uplink channel into at least two resource groups and maps each resource group to an antenna set through precoding based on a precoding matrix; the antenna set includes a plurality of physical antennas or a plurality of antenna ports.

Dividing the resources for transmitting the uplink channel into at least two resource groups based on the number of the determined resource groups; the number of the resource groups is predefined or set by the base station, and correspondingly, the number of the set resource groups is sent to the terminal, so that the terminal divides the resources for transmitting the uplink channel into at least two resource groups based on the number of the resource groups; and the resource occupied by each resource group is determined based on the uplink channel resource and the number of the resource groups.

the method comprises the steps that X is predefined, or is a value determined based on the number of demodulation reference signal (DMRS) symbols and/or an uplink channel format, or is a value set by a base station, and correspondingly, the set value of X is sent to a terminal so that the terminal can determine that resources for transmitting the uplink channel are divided into a preset number of X in a time domain; y is predefined, or a value determined based on the number of Resource Blocks (RB) contained in the uplink channel, or a value set by the base station, and accordingly, the set value of Y is sent to the terminal so that the terminal can determine that the resource for transmitting the uplink channel is divided into the preset number Y in the frequency domain.

Optionally, according to a transmission method of an uplink channel in an embodiment of the present application, the determining that the terminal uses a precoding matrix to switch diversity to transmit the uplink channel includes:

determining the terminal to use the transmit diversity switched by the precoding matrix only for the uplink channel with the length of 10-14 symbols based on the stipulation of a protocol or when the terminal is indicated to use the common cyclic prefix; or

Determining the terminal to use the transmit diversity switched by the precoding matrix only for the uplink channel with the length of 10-12 symbols based on the stipulation of a protocol or when the terminal is indicated to use the extended cyclic prefix; or

Determining that the terminal determines the transmit diversity switched by using a precoding matrix only for a specific uplink channel format based on the stipulation of a protocol or an indication terminal; or

And determining the uplink channel of the terminal, which is only subjected to frequency hopping in the time slot, based on the stipulation of a protocol or the indication of the terminal, and determining the transmission diversity switched by using the precoding matrix.

Optionally, according to the transmission method of an uplink channel in an embodiment of the present application, after the uplink channel sent by the terminal is received based on the at least two resource group sets in a diversity manner, the method further includes:

and performing independent channel estimation on the at least two resource groups.

In a third aspect, an embodiment of the present application further provides a terminal, including:

the first division module is used for dividing resources for transmitting the uplink channel into at least two resource groups after determining that the uplink channel is transmitted by using the precoding matrix switching diversity, and mapping each resource group to an antenna set through precoding based on a precoding matrix; the antenna set comprises a plurality of physical antennas or a plurality of antenna ports;

and a sending module, configured to send the uplink channel in a diversity manner through the antenna set.

In a fourth aspect, an embodiment of the present application further provides a terminal, including a memory, a processor, and a program stored in the memory and executable on the processor, where the processor executes the program to implement the following steps:

Optionally, according to a terminal of an embodiment of the present application, the dividing resources used for transmitting the uplink channel into at least two resource groups includes:

Optionally, according to a terminal of an embodiment of the present application, the dividing the resource for transmitting the uplink channel into at least two resource groups based on the number of the resource for transmitting the uplink channel divided in the time domain and the number of the resource for transmitting the uplink channel divided in the frequency domain includes:

x is a value which is predefined or notified by a base station or a value determined based on the number of DMRS symbols of a demodulation reference signal and/or an uplink channel format, and Y is a value which is predefined or notified by the base station or a value determined based on the number of RB (resource block) contained in an uplink channel.

Optionally, according to the terminal of an embodiment of the present application, the steps further include:

Optionally, according to the terminal in an embodiment of the present application, the number of the determined resource groups is a small value taken from the first number and the second number;

Optionally, according to the terminal of an embodiment of the present application, the second number is determined by calculating according to the following formula, where the value of x is 2 or 4;

Optionally, according to the terminal in an embodiment of the present application, if the number of the determined resource groups is the first number, the resource for transmitting the uplink channel is divided into Z resource groups according to a sequence that the repeated transmission is divided into different resource groups first, then the different RBs are divided into different resource groups, and then the resource in each RB is divided into different resource groups.

Optionally, according to a terminal in an embodiment of the present application, the mapping each resource group onto an antenna set through precoding based on a precoding matrix includes:

Optionally, according to the terminal in an embodiment of the present application, the precoding matrix is randomly selected from at least two resource groups, or the precoding matrix is used based on a predefined order in at least two resource groups.

Optionally, according to the terminal in an embodiment of the present application, the number of rows/columns of the precoding matrix is greater than or equal to the number of physical antennas or the number of antenna ports in the antenna set.

Optionally, according to the terminal in an embodiment of the present application, the determining to transmit the uplink channel using precoding matrix switching diversity includes:

In a fifth aspect, an embodiment of the present application further provides a base station, including:

the second division module is used for dividing resources for transmitting the uplink channel into at least two resource groups after the terminal is determined to use the precoding matrix switching diversity to transmit the uplink channel;

a receiving module, configured to receive the uplink channel sent by the terminal based on the at least two resource group diversity; the uplink channel is sent through the antenna set diversity after the terminal divides resources for transmitting the uplink channel into at least two resource groups and maps each resource group to an antenna set through precoding based on a precoding matrix; the antenna set includes a plurality of physical antennas or a plurality of antenna ports.

In a sixth aspect, an embodiment of the present application further provides a base station, including a memory, a processor, and a program stored in the memory and executable on the processor, where the processor executes the program to implement the following steps:

after determining that a terminal uses a precoding matrix to switch diversity to send an uplink channel, dividing resources for transmitting the uplink channel into at least two resource groups;

Optionally, according to the base station in an embodiment of the present application, the dividing the resource for transmitting the uplink channel into at least two resource groups includes:

Optionally, according to the base station of an embodiment of the present application, the dividing the resource for transmitting the uplink channel into at least two resource groups based on the number of the resource for transmitting the uplink channel divided in the time domain and the number of the resource for transmitting the uplink channel divided in the frequency domain includes:

Optionally, according to the base station of an embodiment of the present application, the steps further include:

Optionally, according to the base station in an embodiment of the present application, the number of the determined resource groups is a small value taken from the first number and the second number;

Optionally, according to the base station in an embodiment of the present application, the second number is determined according to the following formula, where the second number is min (N, x) a B, and a value of x is 2 or 4;

Optionally, according to the base station in an embodiment of the present application, if the number of the determined resource groups is the first number, the resource for transmitting the uplink channel is divided into Z resource groups according to a sequence that the repeated transmission is divided into different resource groups first, then the different RBs are divided into different resource groups, and then the resource in each RB is divided into different resource groups.

Optionally, according to the base station in an embodiment of the present application, the determining that the terminal uses the precoding matrix to switch diversity to transmit the uplink channel includes:

Optionally, according to the base station in an embodiment of the present application, after receiving the uplink channel sent by the terminal based on the at least two resource group sets in a diversity manner, the method further includes:

In a seventh aspect, an embodiment of the present application further provides a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the transmission method for an uplink channel as provided in the first aspect.

In an eighth aspect, embodiments of the present application further provide a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the transmission method for an uplink channel as provided in the second aspect.

According to the uplink channel transmission method, the terminal, the base station and the storage medium provided by the embodiment of the application, the resources for transmitting the uplink channel are divided into at least two resource groups, each resource group is mapped to the antenna set through precoding based on the precoding matrix, the uplink channel is sent in a diversity mode through the antenna set, the transmission performance of the uplink channel is improved, the transmission performance of the uplink channel is still good when the channel condition is poor for cell edge users, and the coverage requirement is met.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic flow chart of a transmission method of an uplink channel according to an embodiment of the present application;

fig. 2 is a schematic diagram illustrating uplink channel resource group division according to an embodiment of the present application;

fig. 3 is a schematic diagram illustrating uplink channel resource group division according to another embodiment of the present application;

fig. 4 is a schematic diagram illustrating uplink channel resource group division according to another embodiment of the present application;

fig. 5 is a schematic diagram illustrating uplink channel resource group division according to yet another embodiment of the present application;

fig. 6 is a schematic diagram illustrating uplink channel resource group division according to still another embodiment of the present application;

fig. 7 is a schematic diagram illustrating uplink channel resource group division according to still another embodiment of the present application;

fig. 8 is a schematic diagram illustrating uplink channel resource group division according to still another embodiment of the present application;

fig. 9 is a schematic diagram illustrating uplink channel resource group division according to still another embodiment of the present application;

fig. 10 is a schematic diagram illustrating uplink channel resource group division according to still another embodiment of the present application;

fig. 11 is a schematic diagram illustrating uplink channel resource group division according to still another embodiment of the present application;

fig. 12 is a flowchart illustrating a method for transmitting an uplink channel according to another embodiment of the present application;

fig. 13 is a schematic structural diagram of a terminal according to an embodiment of the present application;

fig. 14 is a schematic structural diagram of a terminal device according to another embodiment of the present application;

fig. 15 is a schematic structural diagram of a terminal according to another embodiment of the present application;

fig. 16 is a schematic structural diagram of a base station according to an embodiment of the present application;

fig. 17 is a schematic structural diagram of a base station according to another embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

For the convenience of clearly describing the technical solutions of the embodiments of the present application, in the embodiments of the present application, if words such as "first" and "second" are used to distinguish the same items or similar items with basically the same functions and actions, those skilled in the art can understand that the words such as "first" and "second" do not limit the quantity and execution order.

Several background information that is used in the examples of the present application is described below:

in NR (New Radio, New air interface), a Physical Uplink Control Channel (PUCCH) supports 5 formats, as shown in the following table.

Wherein PUCCH format 1, format 3 and format 4 can use a PUCCH length of 14 symbols at maximum and support repeated transmission in multiple slots. When the repeated transmission is performed, the transmission is performed in each slot according to the same transmission length. PUCCH format 2 and format 3 support transmission on multiple RBs, PUCCH format 2 supports transmission on 1-16 Resource Blocks (RBs), and PUCCH format 3 supports transmission on a specific number of RBs as specified in table 1.

In the Long Term Evolution (LTE) system research process, a Precoding Vector Switching (PVS) transmit diversity scheme has been studied, which performs precoding between 2 antenna ports using a precoding Vector [ +1, +1] for a previous slot in a subframe and performs precoding between 2 antenna ports using a precoding Vector [ +1, -1] for a subsequent slot. The precoding vector is fixed, and is an open loop mode, and signaling is not needed to inform the precoding vector.

In order to enhance the coverage of the uplink control channel, the transmit diversity scheme of the uplink control channel may need to be considered in NR Rel-17. At present, uplink channels in NR are transmitted by using a single antenna, a transmit diversity scheme is not defined, and for cell edge users, the transmission performance of PUCCH is poor when the channel condition is poor, and the coverage requirement may not be met. If PVS transmit diversity in LTE is used, since the PUCCH in NR is not transmitted in subframe units, it is not clear how to divide two resource groups into two different precoding vectors, and the division into two resource groups may not be sufficient for round robin of the precoding vectors, and performance improvement is not significant.

In order to solve the problem, the core idea of the embodiments of the present application is: and dividing uplink channel resources into a plurality of resource groups based on a predefined mode, mapping each resource group to different antennas or antenna ports by using different precoding vectors, and transmitting the uplink channels in a diversity mode through an antenna set.

The present application is described in detail below with reference to several embodiments.

Fig. 1 is a schematic flow chart of a transmission method of an uplink channel according to an embodiment of the present application; as shown in fig. 1, the method comprises the steps of:

step 100, after determining to transmit an uplink channel by using a precoding matrix switching diversity, dividing resources for transmitting the uplink channel into at least two resource groups, and mapping each resource group to an antenna set through precoding based on a precoding matrix; the antenna set comprises a plurality of physical antennas or a plurality of antenna ports;

specifically, the basic principle of diversity is to carry multiple copies of the same information through multiple sets of channel resources, and because the transmission characteristics of the multiple sets of channel resources are different, the fading of the multiple copies of the signal will not be the same. The base station receives a plurality of copies of the information through a plurality of groups of channel resources, and the information contained in the plurality of copies can be used for correctly recovering the original transmission signal.

Specifically, in this embodiment, in order to improve the performance of channel transmission, the uplink channel may be sent through diversity, that is, resources used for transmitting the uplink channel may be divided into at least two resource groups, and the uplink channel is transmitted through the at least two resource groups.

Specifically, when the uplink channel is transmitted through at least two resource groups, each resource group may be mapped to multiple antennas to transmit the uplink channel.

It can be understood that, in this embodiment, after determining to transmit the uplink channel using the precoding matrix switching diversity, the terminal may further divide the resource for transmitting the uplink channel into at least two resource groups, and transmit the uplink channel.

It can be understood that, in this embodiment, the determination of the terminal to transmit the uplink channel using the precoding matrix switching diversity may be determined based on an indication of the base station.

And 101, transmitting the uplink channel in a diversity mode through the antenna set.

Specifically, after the terminal divides the resources for transmitting the uplink channel into at least two resource groups and maps the at least two resource groups to the antenna set, the uplink channel can be sent in a diversity manner through the antenna set.

According to the uplink channel transmission method provided by the embodiment of the application, the resources for transmitting the uplink channel are divided into at least two resource groups, each resource group is mapped to the antenna set through precoding based on the precoding matrix, the uplink channel is sent in a diversity mode through the antenna set, the transmission performance of the uplink channel is improved, the transmission performance of the uplink channel is still good when the channel condition is poor for cell edge users, and the coverage requirement is met.

Optionally, on the basis of the foregoing embodiments, the dividing the resource for transmitting the uplink channel into at least two resource groups includes:

dividing the resources for transmitting the uplink channel into at least two resource groups based on the number of the resources for transmitting the uplink channel divided in the time domain and the number of the resources for transmitting the uplink channel divided in the frequency domain;

specifically, in this embodiment, the number of time-domain partitions and the number of frequency-domain partitions of the resource for transmitting the uplink channel may be predefined or determined based on the parameters notified by the base station, and it can be understood that, since the time-domain resource and the frequency-domain resource are determined, the size of each resource group is determined after the number of time-domain partitions and the number of frequency-domain partitions of the uplink channel are determined.

It can be understood that, in this embodiment, when the resource for transmitting the uplink channel is divided into at least two resource groups based on the number X of the resource for transmitting the uplink channel divided in the time domain and the number Y of the resource for transmitting the uplink channel divided in the frequency domain, one group in the time domain and one group in the frequency domain are combined to obtain one resource group, that is, one uplink channel resource is divided into X × Y resource groups altogether.

It can be understood that, in the present embodiment, when X is preset to 1, Y is not preset to 1 in order to ensure that the uplink resources are divided into at least 2 resource groups.

Or dividing the resources for transmitting the uplink channel into at least two resource groups based on the number of the determined resource groups; the number of the resource groups is predefined or notified by the base station; and the resource occupied by each resource group is determined based on the uplink channel resource and the number of the resource groups.

Specifically, in this embodiment, the number of resource groups for dividing resources used for transmitting the uplink channel may be predetermined, and when the resources are specifically divided, the uplink channel resources may be divided into the resource groups of the determined number.

It is understood that the number of resource groups for dividing resources used for transmitting the uplink channel, that is, the number of the determined resource groups, may be predefined or notified by the base station;

it can be understood that, in this embodiment, in the case that the number of resource groups is determined, the resource occupied by each resource group may be determined based on the uplink channel resource and the number of resource groups.

Optionally, on the basis of the foregoing embodiments, the dividing the resource for transmitting the uplink channel into at least two resource groups based on the number of the resource for transmitting the uplink channel divided in the time domain and the number of the resource for transmitting the uplink channel divided in the frequency domain includes:

Specifically, if the resource for transmitting the uplink channel is to be divided into at least two resource groups based on the number of the resources for transmitting the uplink channel divided in the time domain and the number of the resources for transmitting the uplink channel divided in the frequency domain, it may be determined that the resources for transmitting the uplink channel are first divided in the time domain into a preset number X, and the resources for transmitting the uplink channel are determined to be divided in the frequency domain into a preset number Y, for example, X is determined to be 2 and Y is determined to be 2, that is, the uplink channel resources are divided in the time domain into 2, and the uplink channel is divided in the frequency domain into 2, the uplink channel resources are divided into 4 in total.

It can be understood that, in this embodiment, X may be a predefined value or a value notified by a base station or a value determined based on the number of DMRS symbols for demodulation reference signals and/or an uplink channel format, for example, the value of X may be 1, 2, or 4; y may be a predefined or base station notified value or a value determined based on the number of resource blocks RB contained in the uplink channel, for example, assuming that the number of RBs contained in the uplink channel is B, B RBs of the uplink channel resource are divided into Y groups, and each B/Y consecutive PUCCH RBs form a group, where B can be evenly divided by Y.

For example, when the value of X is 1, assuming that the uplink channel resource includes N symbols, the first resource group in the time domain is also the only resource group that includes N symbols, and it can be understood that when X is 1, Y may not be 1 in order to ensure transmission performance.

For example, when the value of X is 2, assuming that the uplink channel resource includes N symbols, the first resource group in the time domain includes floor (N/2) symbols, and the second resource group includes ceil (N/2) symbols.

For example, when the value X is 4, assuming that the uplink channel includes N symbols, a first resource group in the time domain includes ceil (floor (N/2)/2) symbols, a second resource group includes floor (floor (N/2)/2) symbols, a third resource group includes ceil (ceil (N/2)/2) symbols, and a fourth resource group includes floor (ceil (N/2)/2) symbols; where ceil () represents rounded up and floor () represents rounded down.

It is understood that in this embodiment, when resource group division is performed, ceil and floor used may be replaced with each other, but the principle of division is not changed.

For example, fig. 2 is a schematic diagram illustrating the partitioning of uplink channel resource groups according to an embodiment of the present application; as shown in fig. 2, when the terminal determines to transmit the uplink channel using precoding matrix switching diversity, for example, after the base station configures the terminal to use a precoding matrix switching based transmission diversity scheme, and the terminal is to transmit an uplink channel resource occupying 2 RBs and 14 symbols, the uplink channel includes 2 DMRS symbols, and the uplink channel resource is predefined to be divided into 2 groups in the time domain and 2 groups in the frequency domain, the terminal may divide the uplink channel resource into 4 resource groups, as shown in fig. 2, where the first 7 symbols of RB #1 are a first resource group Precoder 1, the last 7 symbols of RB #1 are a second resource group Precoder 2, the first 7 symbols of RB #2 are a third resource group Precoder 3, and the last 7 symbols of RB #4 are a fourth resource group Precoder 4, and the terminal maps transmission information on the physical antenna set or the antenna port set using different precoding matrices on the four resource groups, for example, the terminal transmits using two physical antennas, the precoding matrix on the first resource group Precoder 1 is {1,1}, the precoding matrix on the second resource group Precoder 2 is {1, -1}, the precoding matrix on the third resource group Precoder 3 is {1, j }, and the precoding matrix on the fourth resource group Precoder 4 is {1, -j }. And finally, the two physical antennas carry out diversity transmission on the uplink channel.

For example, fig. 3 is a schematic diagram illustrating uplink channel resource group division according to another embodiment of the present application; as shown in fig. 3, the base station configures the terminal to use a precoding matrix-based switching transmit diversity scheme, when the terminal transmits an uplink channel resource occupying 1 RB and 14 symbols, where the uplink channel includes 2 DMRS symbols, and assuming that the uplink channel resource is divided into 4 groups in the time domain when additional DMRS symbols are configured are predefined, the terminal may divide the uplink channel resource into 4 resource groups, as shown in fig. 2, where the first 3 symbols of RB #1 are a first resource group Precoder 1, the 4 th to 7 th symbols are a second resource group Precoder 2, the 8 th to 10 th symbols are a third resource group Precoder 3, and the 11 th to 14 th symbols are a fourth resource group Precoder 4, and the terminal uses different precoding matrices to map transmit information on a physical antenna set or an antenna port set on the four resource groups, for example, the terminal uses two physical antennas to transmit, the precoding matrix over the first set of resources is {1,1}, the precoding matrix over the second set of resources is {1, -1}, the precoding matrix over the third set of resources is {1, j }, and the precoding matrix over the third set of resources is {1, -j }. Alternatively, the four resource groups are rotated by precoding matrices {1,1} and {1, -1}, such as a precoding matrix {1,1} on the first resource group Precoder 1, a precoding matrix {1, -1} on the second resource group Precoder 2, a precoding matrix {1,1} on the third resource group Precoder 3, and a precoding matrix {1, -1} on the fourth resource group Precoder 4.

Optionally, on the basis of the foregoing embodiments, the method further includes:

Specifically, when the uplink channel is configured with repeat transmission, the value of X may be an integer value less than or equal to the number of repeat transmissions of the uplink channel, for example, every two repeat transmissions are transmitted by using the same resource group;

assuming that the repetition number of the uplink channel is a, for example, dividing a repeated transmissions of the uplink channel resource into X groups, and repeating the uplink channel in every a/X time slots/sub-time slots into one group, where a can be divided by X;

specifically, the value of X may also be 2 times or 4 times of the number of times of uplink channel repeat transmission;

for example, the uplink channel in each timeslot/sub-timeslot is divided into 2 or 4 resource groups based on a manner when no repeat transmission is configured, and assuming that the number of times of repetition of the uplink channel is a, the uplink channel is divided into 2 × a or 4 × a groups in the time domain.

For example, fig. 4 is a schematic diagram illustrating division of an uplink channel resource group according to another embodiment of the present application; as shown in fig. 4, when the base station configures the terminal to switch the transmit diversity scheme based on the precoding matrix, and the terminal transmits an uplink channel resource occupying 1 RB and 14 symbols, and the uplink channel is configured to repeat transmission 4 times, the terminal may divide the uplink channel resource into 4 resource groups, i.e., Precoder 1, Precoder 2, Precoder 3, and Precoder 4, as shown in fig. 4, where each time of repeated transmission is one resource group, the terminal maps transmission information on the four resource groups onto a physical antenna set or an antenna port set using different precoding matrices, e.g., the terminal transmits using two physical antennas, the precoding matrix on the first resource group, i.e., Precoder 1, the precoding matrix on the second resource group, i.e., Precoder 2, the precoding matrix on the third resource group, i.e., 1, j, and the precoding matrix on the fourth resource group Precoder 4 is {1, -j }. Alternatively, the four resource groups are rotated by precoding matrices {1,1} and {1, -1}, such as a precoding matrix {1,1} on the first resource group Precoder 1, a precoding matrix {1, -1} on the second resource group Precoder 2, a precoding matrix {1,1} on the third resource group Precoder 3, and a precoding matrix {1, -1} on the fourth resource group Precoder 4.

It should be noted that, this embodiment is described by taking as an example that the uplink channel occupies 1 RB and 4 repeated transmissions are divided into 4 resource groups, or 4 repeated transmissions are divided into two resource groups, where the first two repeated transmissions are the first resource group and the second two repeated transmissions are the second resource group. If the uplink channel resources in this embodiment occupy two RBs, it can also be divided into 8 resource groups, where each RB in each repeat transmission is a resource group; or divided into 4 resource groups, and 2 RBs repeatedly transmitted at one time are one resource group; or, the method can also be divided into two resource groups, the first two repeated transmissions are the first resource group, and the second two repeated transmissions are the second resource group.

For example, fig. 5 is a schematic diagram illustrating uplink channel resource group division according to still another embodiment of the present application; as shown in fig. 5, when the base station configures the terminal to use a precoding matrix-based switching transmit diversity scheme, and the terminal transmits an uplink channel resource occupying 1 RB and 14 symbols, and the uplink channel is configured to repeat transmission 4 times, the terminal may divide the uplink channel resource into 8 resource groups, i.e., Precoder 1, Precoder 2, Precoder 3, Precoder 4, Precoder 5, Precoder 6, Precoder 7, and Precoder 8, as shown in fig. 5, where each repeat transmission includes 2 resource groups, and the terminal maps transmit information on the 8 resource groups onto a physical antenna set or an antenna port set using different precoding matrices.

It should be noted that, this embodiment is described by taking as an example that the uplink channel occupies 1 RB and 4 times of repeated transmission is divided into 8 resource groups, if the uplink channel resource in this embodiment occupies two RBs, the uplink channel resource may also be divided into 16 resource groups, and each time of repeated transmission is divided into 4 resource groups in a manner similar to that in fig. 2; or the resource can be divided into 8 resource groups, the time domain division mode is unchanged, and two RBs on the frequency domain belong to the same resource group.

Optionally, on the basis of the foregoing embodiments, the number of the determined resource groups is a small value taken from the first number and the second number;

Specifically, if the number of resource groups is determined, the number of the final resource groups into which the resource groups are divided may be determined based on the first number of resource groups, i.e., the number Z, and the second number, i.e., the number N of DMRS symbols included in the uplink channel, the number a of repetitions of the uplink channel, and the number B of RBs included in the uplink channel.

Specifically, the values of the two are compared, if the first number, that is, the preset number Z of resource groups is smaller, the uplink channel resources are divided into Z, and if the second number is smaller, the number of the uplink channel resources is divided into the second number.

Optionally, on the basis of the foregoing embodiments, the second number is determined by calculating according to the following formula, where the value of x is 2 or 4;

In particular, a second number min (N, x) a B may be specified, wherein x takes on a value of 2 or 4; if the number of the preset resource groups is Z, the number of DMRS symbols contained in the uplink channel is N, the number of times of repetition of the uplink channel is A, and the number of RBs contained in the uplink channel is B, if Z > -min (N, x) A x B, the uplink channel is divided into min (N, x) A x B resource groups; otherwise, the uplink channel is divided into Z resource groups.

Specifically, when the uplink channel is divided into min (N, x) a by B resource groups, each RB of the uplink channel in each uplink channel repetition slot includes min (N, x) resource groups, each resource group includes one RB and N/x DMRS symbols,

for example, if x is 2, the first resource group of each RB contains floor (N/2) symbols, and the second resource group contains ceil (N/2) symbols;

for example, if the number of DMRS symbols included in the uplink channel is greater than or equal to 4 and x is 4, the first resource group of each RB includes ceil (color (N/2)/2) symbols, the second resource group includes color (N/2)/2) symbols, the third resource group includes ceil (ceil (N/2)/2) symbols, and the fourth resource group includes color (ceil (N/2)/2) symbols.

For example, fig. 6 is a schematic diagram illustrating partitioning of uplink channel resource groups according to still another embodiment of the present application; as shown in fig. 6, the base station configuration terminal switches the transmit diversity scheme based on the precoding matrix, and indicates that the number of resource groups is 4. Assuming that x is predefined to be 1, when the terminal sends an uplink channel resource occupying 2 RBs and 14 symbols, and the number of DMRS symbols included in the uplink channel is 4, and no repeated transmission is configured, Z is 4, min (N, x) a × B — min (4,1) 1 × 2 — 2, and since Z > min (N, x) a × B, the terminal may divide the uplink channel resource into 2 resource groups, i.e., Precoder 1 and Precoder 2, as shown in fig. 6, and the terminal maps transmission information on multiple physical antennas or antenna ports using different precoding matrices on the two resource groups.

Optionally, on the basis of the foregoing embodiments, if the number of the determined resource groups is the first number, the resource for transmitting the uplink channel is divided into Z resource groups according to a sequence that the repeated transmission is divided into different resource groups first, then the different RBs are divided into different resource groups, and then the resource in each RB is divided into different resource groups.

Specifically, when the uplink channel is divided into Z resource groups, the repeated transmission may be divided into different resource groups, then different RBs may be divided into different resource groups, and finally the resource in each RB may be divided into different resource groups, and the uplink channel may be divided into Z resource groups according to the division sequence.

For example, if Z < ═ a, a repeatedly transmitted uplink channels are divided into Z resource groups, and there may be multiple specific dividing manners, which is not specifically limited in this embodiment; if Z is greater than a and Z < ═ a × B, the a × B repeatedly transmitted uplink channel RB resources are divided into Z resource groups, and the specific division manner may be various, which is not specifically limited in this embodiment; if Z > a × B, the uplink channel resources are divided into Z resource groups, and the specific dividing manner may be various, which is not specifically limited in this embodiment.

For example, fig. 7 is a schematic diagram illustrating partitioning of uplink channel resource groups according to still another embodiment of the present application; as shown in fig. 7, the base station configuration terminal switches the transmit diversity scheme based on the precoding matrix, and indicates that the number of resource groups is 4. Assuming that x is 2 is predefined, when the terminal sends an uplink channel resource occupying 1 RB and 14 symbols, and the number of DMRS symbols included in the uplink channel is 2, and the uplink channel is configured to repeat transmission 4 times, Z is 4, min (N, x) a B min (2,2) 4B 1 — 8, since Z < min (N, x) a B, the terminal may divide the uplink channel resource into Z4 resource groups Precoder 1, Precoder,2, Precoder,3, and Precoder 4, as shown in fig. 7, where each repetition transmission is one resource group, and the terminal uses different precoding matrices to map transmission information on multiple physical antennas or antenna ports.

For example, fig. 8 is a schematic diagram illustrating partitioning of uplink channel resource groups according to still another embodiment of the present application; as shown in fig. 8, the base station configuration terminal switches the transmit diversity scheme based on the precoding matrix, and indicates that the number of resource groups is 4. Assuming that x is 4 is predefined, when a terminal sends an uplink channel resource occupying 2 RBs and 14 symbols, and the number of DMRS symbols included in the uplink channel is 2, and the uplink channel is configured to repeat transmission 4 times, Z is 4, min (N, x) a B min (2,4) 4B 2 min (2,4) 16, because Z < min (N, x) a B, the terminal may divide the uplink channel resource into 4 resource groups, i.e., Precoder 1, Precoder,2, Precoder,3, and Precoder 4, as shown in fig. 8, where each repetition transmission is one resource group, and the terminal uses different precoding matrices to map transmission information on multiple physical antennas or antenna ports on the four resource groups.

For example, fig. 9 is a schematic diagram illustrating partitioning of an uplink channel resource group according to still another embodiment of the present application; as shown in fig. 9, the base station configuration terminal switches the transmit diversity scheme based on the precoding matrix, and indicates that the number of resource groups is 4. Assuming that x is 4 is predefined, when the terminal sends an uplink channel resource occupying 2 RBs and 14 symbols, and the uplink channel contains 2 DMRS symbols, and is configured to repeat transmission 2 times, Z is 4, min (N, x) a B min (2,4) 2 x 28, since Z < min (N, x) a B, the terminal may divide the uplink channel resource into 4 resource groups, i.e., Precoder 1, Precoder,2, Precoder,3, and Precoder 4, as shown in fig. 9, where two resource groups are divided into two resource groups in each repeat transmission, and the terminal maps transmission information on multiple physical antennas or antenna ports using different precoding matrices on these four groups.

It can be understood that, in this embodiment, the first number may also be equal to the second number, and then the first number is used as the determined number of resource groups or the second number is used as the determined number of resource groups.

For example, fig. 10 is a schematic diagram illustrating partitioning of uplink channel resource groups according to still another embodiment of the present application; as shown in fig. 10, the base station configuration terminal switches the transmit diversity scheme based on the precoding matrix, and indicates that the number of resource groups is 4. Assuming that x is 4 is predefined, when the terminal sends an uplink channel resource occupying 2 RBs and 14 symbols, and the uplink channel contains 2 DMRS symbols, and is not configured with repeated transmission, Z is 4, min (N, x) a × B min (2,4) 1 × 2 — 4, since Z × min (N, x) a × B, the terminal may divide the uplink channel resource into 4 resource groups Precoder 1, Precoder,2, Precoder,3, and Precoder 4, as shown in fig. 10, where each RB contains 2 resource groups, and the terminal uses different precoding matrices to map transmission information on multiple physical antennas or antenna ports on the four resource groups.

For example, fig. 11 is a schematic diagram illustrating partitioning of uplink channel resource groups according to still another embodiment of the present application; as shown in fig. 11, the base station configuration terminal switches the transmit diversity scheme based on the precoding matrix, and indicates that the number of resource groups is 4. Assuming that x is 4 is predefined, when the terminal sends an uplink channel resource occupying 1 RB and 14 symbols, and the number of DMRS symbols included in the uplink channel is 4, and no repeated transmission is configured, Z is 4, min (N, x) a ═ B ═ min (4,4) 1 ═ 4, because Z ═ min (N, x) a ═ B, the terminal may divide the uplink channel resource into 4 resource groups, i.e., precoding 1, precoding, 2, precoding, 3, and precoding 4, as shown in fig. 11, the terminal maps transmission information on multiple physical antennas or antenna ports using different precoding matrices on the four resource groups.

Optionally, on the basis of the foregoing embodiments, the mapping each resource group onto an antenna set through precoding based on a precoding matrix includes:

Specifically, in this embodiment, the precoding may be a digital domain precoding or an analog precoding.

If the precoding is digital domain precoding, i.e. based on matrix elements in the precoding matrix being mapped onto a set of antennas, for example, for a single-layer transmission uplink channel, when the number of transmit antennas is 2, the length of the precoding vector is 2, where the precoding vector may be {1,1}, {1, -1}, {1, -j }, and {1, j }, where the first element of each vector corresponds to a first antenna and the second element corresponds to a second antenna.

If the precoding is analog precoding, the analog precoding is mapped to the antenna set through the spatial domain related information. For example, the analog precoding is mapped onto a set of physical antennas or antenna ports by spatial correlation information, e.g., beam direction.

Optionally, on the basis of the foregoing embodiments, the precoding matrix is randomly selected within at least two resource groups, or the precoding matrix is used within at least two resource groups based on a predefined order.

Specifically, the precoding matrix performs handover transmission in a plurality of resource groups, wherein the precoding matrix can be randomly selected in the plurality of resource groups, that is, each resource group randomly selects which precoding matrix to use when mapping to an antenna set; alternatively, the precoding matrix is used within a plurality of resource groups on a predefined order, i.e. each resource group selects the precoding matrix in a predefined order when mapped to the set of antennas.

Optionally, on the basis of the foregoing embodiments, the number of rows/columns of the precoding matrix is greater than or equal to the number of physical antennas or the number of antenna ports in the antenna set.

Specifically, in this embodiment, the number of rows/columns of the precoding matrix is greater than or equal to the number of antennas or antenna ports for transmission, for example, for single-layer transmission, the number of rows of the precoding matrix is 1, that is, the length of the precoding vector is greater than or equal to the number of antennas or antenna ports for transmission.

Optionally, on the basis of the foregoing embodiments, the determining to transmit the uplink channel using precoding matrix switching diversity includes:

In particular, the base station or protocol may instruct or specify that the terminal diversity transmit only in certain situations, such as only on special channels.

Such as transmit diversity that instructs the terminal to use precoding matrix switching only for uplink channels of a particular length. For example, when a common cyclic prefix is used, the terminal only uses the transmit diversity switched by the precoding matrix for the uplink channels with the length of 10-14 symbols; when the extended cyclic prefix is used, the terminal only uses the transmit diversity switched by the precoding matrix for the uplink channel with the length of 10-12 symbols; the uplink channel of unspecified length uses a single antenna transmission scheme.

Such as transmit diversity, which instructs the terminal to use precoding matrix switching only for certain uplink channel formats, e.g. diversity transmission only for uplink channel PUCCH formats 1, 3 and 4.

Such as transmit diversity that instructs the terminal to use precoding matrix switching only for uplink channels that hop within a time slot.

Fig. 12 is a flowchart illustrating a method for transmitting an uplink channel according to another embodiment of the present application; as shown in fig. 2, the method comprises the steps of:

step 1200, after determining that the terminal uses the precoding matrix to switch diversity to transmit the uplink channel, dividing the resource for transmitting the uplink channel into at least two resource groups;

It can be understood that, in this embodiment, after determining that the terminal uses the precoding matrix switching diversity to transmit the uplink channel, the base station may divide the resource for transmitting the uplink channel into at least two resource groups for receiving the uplink channel.

It can be understood that, in this embodiment, the base station may instruct the terminal to determine to transmit the uplink channel using the precoding matrix switching diversity.

Step 1201, receiving the uplink channel sent by the terminal based on the at least two resource group diversity; the uplink channel is sent through the antenna set diversity after the terminal divides resources for transmitting the uplink channel into at least two resource groups and maps each resource group to an antenna set through precoding based on a precoding matrix; the antenna set includes a plurality of physical antennas or a plurality of antenna ports.

Specifically, after the base station divides the resources for transmitting the uplink channel into at least two resource groups, the uplink channel sent by the terminal in diversity can be received on each resource group.

It can be understood that the uplink channel sent by the terminal in diversity is that when the terminal transmits the uplink channel through at least two resource groups, each resource group is mapped onto a different antenna, and the uplink channel is sent through different resource groups by the antenna.

The uplink channel transmission method provided by the embodiment of the application divides resources for transmitting the uplink channel into at least two resource groups, and receives the uplink channel sent by the terminal based on at least two resource group diversity, wherein the uplink channel is sent by the antenna set diversity after the terminal divides the resources for transmitting the uplink channel into at least two resource groups and maps each resource group to the antenna set through precoding based on a precoding matrix; the transmission performance of the uplink channel is improved, and for cell edge users, the transmission performance of the uplink channel is still better when the channel condition is poorer, so that the coverage requirement is met.

specifically, in this embodiment, the number of time-domain partitions and the number of frequency-domain partitions of resources for transmitting the uplink channel may be predefined first, and it can be understood that, since the time-domain resources and the frequency-domain resources are fixed, the size of each resource group is predefined after the number of time-domain partitions and the number of frequency-domain partitions of the uplink channel are predefined.

Or dividing the resources for transmitting the uplink channel into at least two resource groups based on the number of the determined resource groups; the number of the resource groups is predefined or set by the base station, and correspondingly, the number of the set resource groups is sent to the terminal, so that the terminal divides the resources for transmitting the uplink channel into at least two resource groups based on the number of the resource groups; and the resource occupied by each resource group is determined based on the uplink channel resource and the number of the resource groups.

It can be understood that, the number of resource groups for dividing resources used for transmitting the uplink channel is predefined, that is, the number of the determined resource groups may be predefined, or set by the base station, and it can be understood that, after the base station sets the number of the resource groups, the base station may also notify the number of the resource groups set by the terminal, so that the terminal can divide the resources used for transmitting the uplink channel into at least two resource groups based on the number of the resource groups;

It can be understood that, in this embodiment, X may be a value predefined or set by a base station or a value determined based on the number of DMRS symbols for demodulation reference signals and/or an uplink channel format, for example, the value of X may be 1, 2, or 4; y may be a value predefined or set by the base station or a value determined based on the number of resource blocks RB contained in the uplink channel, for example, assuming that the number of RBs contained in the uplink channel is B, the B RBs of the uplink channel resource are divided into Y groups, and each B/Y consecutive PUCCH RBs form a group, where B can be evenly divided by Y.

It can be understood that when X or Y is set to a value by the base station, the base station can simultaneously transmit the value to the terminal, so that the terminal can use the same value to divide the same resource group as the base station.

Specifically, when the uplink channel is configured with repeat transmission, the value of X may be an integer value smaller than the number of repeat transmissions of the uplink channel, for example, every two repeat transmissions are transmitted by using the same resource group;

Optionally, on the basis of the foregoing embodiments, the determining that the terminal uses the precoding matrix to switch diversity to transmit the uplink channel includes:

Optionally, on the basis of the foregoing embodiments, after the receiving the uplink channel sent by the terminal based on the at least two resource group sets in a diversity manner, the method further includes:

Specifically, after the base station receives the uplink channels sent by the terminal based on at least two resource group diversity, the base station may perform independent channel estimation on each resource group.

It can be understood that, since the terminal performs precoding operation on both data and pilot included in the uplink channel when performing precoding, the base station does not need to know the precoding matrix used by the terminal in each resource group when performing precoding, the base station can perform channel estimation on each resource block in the received uplink channel based on the pilot, the estimated channel information already includes precoding related information, and the base station processes the received data based on the estimated channel information, thereby removing the influence of channel and precoding.

Optionally, if at least two resource groups divided by the precoding matrix switching transmit diversity method used by the terminal side always perform channel estimation independently, the method may be transparent to the base station side, that is, the base station side does not need to notify the terminal side whether to perform precoding matrix switching transmit diversity, and the base station side normally receives an uplink channel. The at least two resource groups always perform channel estimation independently, and may be that the at least two resource groups belong to different time slots, or belong to different repeated transmissions, or belong to different frequency hopping resources, or belong to different RBs, or the like.

Fig. 13 is a schematic structural diagram of a terminal according to an embodiment of the present application, and as shown in fig. 13, the terminal includes: a first partitioning module 1301 and a sending module 1302; wherein:

the first dividing module 1301 is configured to divide a resource for transmitting an uplink channel into at least two resource groups after determining that the uplink channel is transmitted using precoding matrix switching diversity, and map each resource group to an antenna set through precoding based on a precoding matrix; the antenna set comprises a plurality of physical antennas or a plurality of antenna ports;

the transmitting module 1302 is configured to transmit the uplink channel in a diversity manner through the antenna set.

Specifically, after determining to transmit an uplink channel by using precoding matrix switching diversity through the first partitioning module 1301, the terminal partitions resources for transmitting the uplink channel into at least two resource groups, and maps each resource group to an antenna set through precoding based on a precoding matrix; and then the transmitting module 1302 transmits the uplink channel in diversity through the antenna set.

The terminal provided in this embodiment of the present application is configured to execute the method described in the corresponding embodiment, and the specific steps of executing the method described in the corresponding embodiment by using the apparatus provided in this embodiment are the same as those in the corresponding embodiment described above, and achieve the same technical effects, which are not described herein again.

The terminal provided by the embodiment of the application divides the resources for transmitting the uplink channel into at least two resource groups, maps each resource group to the antenna set through precoding based on the precoding matrix, and transmits the uplink channel through the antenna set in a diversity manner, so that the transmission performance of the uplink channel is improved, and for cell edge users, the transmission performance of the uplink channel is still better when the channel condition is poor, and the coverage requirement is met.

Optionally, on the basis of the foregoing embodiments, the first dividing module includes:

a first time-frequency domain dividing module, configured to divide the resource for transmitting the uplink channel into at least two resource groups based on the number of the resource for transmitting the uplink channel divided in the time domain and the number of the resource for transmitting the uplink channel divided in the frequency domain; or

A first determined number dividing module, configured to divide the resource for transmitting the uplink channel into at least two resource groups based on the determined number of the resource groups; the number of the resource groups is predefined or notified by the base station; and the resource occupied by each resource group is determined based on the uplink channel resource and the number of the resource groups.

Optionally, on the basis of the foregoing embodiments, the first time-frequency domain dividing module is specifically configured to:

Optionally, on the basis of the foregoing embodiments, the first time-frequency domain dividing module is further specifically configured to:

Optionally, on the basis of each of the foregoing embodiments, the number of the determined resource groups in the first determined number dividing module is a value that is smaller than the first number and the second number;

Fig. 14 is a schematic structural diagram of a terminal device according to another embodiment of the present application, and as shown in fig. 14, the terminal device 1400 may include: at least one processor 1401, memory 1402, at least one network interface 1404, and other user interfaces 1403. The various components in terminal device 1400 are coupled together by a bus system 1405. It will be appreciated that bus system 1405 is used to enable communications among the components connected. The bus system 1405 includes a power bus, a control bus, and a status signal bus, in addition to the data bus. For clarity of illustration, however, the various buses are labeled as bus system 1405 in fig. 14.

The user interface 1403 may include, among other things, a display, a keyboard, or a pointing device, such as a mouse, trackball (trackball), touch pad, or touch screen.

It will be appreciated that the memory 1402 in the subject embodiments can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic random access memory (ddr Data Rate SDRAM, ddr SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 702 of the systems and methods described in various embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

In some embodiments, memory 1402 stores elements, executable modules or data structures, or a subset thereof, or an expanded set thereof, such as: an operating system 14021 and application programs 14022.

The operating system 14021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, for implementing various basic services and processing hardware-based tasks. The application 14022 contains various applications, such as a Media Player (Media Player), a Browser (Browser), and the like, for implementing various application services. A program implementing the methods of embodiments of the present application may be included in application 14022.

In the embodiment of the present application, the processor 1401 is configured to, by calling a computer program or an instruction stored in the memory 1402, specifically, a computer program or an instruction stored in the application 14022:

The methods disclosed in the embodiments of the present application described above may be applied to the processor 1401, or implemented by the processor 1401. Processor 1401 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by instructions in the form of hardware integrated logic circuits or software in the processor 1401. The Processor 1401 may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory 1402, and a processor 1401 reads information in the memory 1402 and performs the steps of the above method in combination with hardware thereof.

It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or any combination thereof. For a hardware implementation, the Processing units may be implemented within one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units configured to perform the functions described herein, or a combination thereof.

For a software implementation, the techniques may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described in the embodiments of the application. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.

Optionally, as another embodiment, the dividing the resource for transmitting the uplink channel into at least two resource groups includes:

Optionally, as another embodiment, the dividing the resource for transmitting the uplink channel into at least two resource groups based on the number of the resource for transmitting the uplink channel divided in the time domain and the number of the resource for transmitting the uplink channel divided in the frequency domain includes:

Optionally, as another embodiment, the processor 1401 is further configured to:

Optionally, as another embodiment, the number of the determined resource groups is a smaller value between the first number and the second number;

Optionally, as another embodiment, the second number is determined by calculating according to the following formula, where the second number is min (N, x) a B, where x has a value of 2 or 4;

Optionally, as another embodiment, if the number of the determined resource groups is the first number, the resource for transmitting the uplink channel is divided into Z resource groups according to a sequence that the resource is divided into different resource groups, then the different RBs are divided into different resource groups, and then the resource in each RB is divided into different resource groups.

Optionally, as another embodiment, the mapping each resource group onto the antenna set through precoding based on a precoding matrix includes:

Optionally, as another embodiment, the precoding matrix is randomly selected within at least two resource groups, or the precoding matrix is used within at least two resource groups based on a predefined order.

Optionally, as another embodiment, the number of rows/columns of the precoding matrix is greater than or equal to the number of physical antennas or the number of antenna ports in the antenna set.

Optionally, as another embodiment, the determining to transmit the uplink channel by using precoding matrix switching diversity includes:

It should be noted that, the terminal device provided in the embodiment of the present application can implement all the method steps implemented by the embodiment of the transmission method for an uplink channel, and can achieve the same technical effect, and details of the same parts and beneficial effects as those of the embodiment of the method are not described herein again.

Fig. 15 is a schematic structural diagram of a terminal according to another embodiment of the present application, where the terminal in fig. 15 may be a mobile phone, a tablet computer, a Personal Digital Assistant (PDA), an electronic reader, a handheld game machine, a Point of Sales (POS), a vehicle-mounted electronic device (vehicle-mounted computer), or the like. As shown in fig. 15, the terminal includes a Radio Frequency (RF) circuit 1510, a memory 1520, an input unit 1530, a display unit 1540, a processor 1560, an audio circuit 1570, a wifi (wireless fidelity) module 1580, and a power supply 1590. Those skilled in the art will appreciate that the handset configuration shown in fig. 15 is not intended to be limiting and may include more or fewer components than those shown, or may combine certain components, or split certain components, or arranged in different components.

Among other things, the input unit 1530 may be used to receive numerical or character information input by a user and to generate signal inputs related to user settings and function control of the mobile terminal. Specifically, in the embodiment of the present application, the input unit 1530 may include a touch panel 15301. The touch panel 15301, also referred to as a touch screen, can collect touch operations of a user (e.g., operations of the user on the touch panel 15301 by using any suitable object or accessory such as a finger or a stylus) thereon or nearby, and drive the corresponding connection device according to a preset program. Alternatively, the touch panel 15301 may include two parts, a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts it to touch point coordinates, and sends the touch point coordinates to the processor 1560, and can receive and execute commands from the processor 1560. In addition, the touch panel 15301 may be implemented in various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. The input unit 1530 may further include other input devices 15302 in addition to the touch panel 15301, and the other input devices 15302 may be used to receive input number or character information and generate key signal inputs related to user settings and function control of the mobile terminal. In particular, other input devices 15302 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, a light mouse (a light mouse is a touch-sensitive surface that does not display visual output, or is an extension of a touch-sensitive surface formed by a touch screen), and the like.

Among them, the display unit 1540 may be used to display information input by a user or information provided to the user and various menu interfaces of the mobile terminal. The display unit 1540 may include a display panel 15401. The Display panel 15401 may be configured by a Liquid Crystal Display (LCD), an organic light-Emitting Diode (OLED), or the like, and the Display panel 15401 is configured by the LCD (LCD), the OLED (organic light-Emitting Diode), or the like.

It should be noted that touch panel 15301 may cover display panel 15401 to form a touch display screen, which when detecting a touch operation on or near the touch display screen, transmits the touch operation to processor 1560 to determine the type of touch event, and processor 1560 then provides a corresponding visual output on the touch display screen according to the type of touch event.

The touch display screen comprises an application program interface display area and a common control display area. The arrangement modes of the application program interface display area and the common control display area are not limited, and can be an arrangement mode which can distinguish two display areas, such as vertical arrangement, left-right arrangement and the like. The application interface display area may be used to display an interface of an application. Each interface may contain at least one interface element such as an icon and/or widget desktop control for an application. The application interface display area may also be an empty interface that does not contain any content. The common control display area is used for displaying controls with high utilization rate, such as application icons like setting buttons, interface numbers, scroll bars, phone book icons and the like.

RF circuit 1510 may be used for receiving and transmitting signals during information transmission and reception or during a call, and in particular, may be used for processing the received downlink information to processor 1560; in addition, the design uplink data is sent to the network side. In general, RF circuit 1510 includes, but is not limited to, an antenna, at least one Amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, RF circuit 1510 may also communicate with networks and other devices via wireless communication. The wireless communication may use any communication standard or protocol, including but not limited to Global System for mobile communications (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), email, Short Messaging Service (SMS), and the like.

The memory 1520 is used to store software programs and modules, and the processor 1560 executes various functional applications and data processing of the mobile terminal by operating the software programs and modules stored in the memory 1520. The memory 1520 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the mobile terminal, and the like. Further, the memory 1520 may include high-speed random access memory and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device.

The processor 1560 is a control center of the mobile terminal, connects various parts of the entire mobile phone using various interfaces and lines, and performs various functions of the mobile terminal and processes data by operating or executing software programs and/or modules stored in the first memory 15201 and calling data stored in the second memory 15202, thereby integrally monitoring the mobile terminal. Processor 1560 may include one or more processing units.

In this embodiment, the processor 1560 is configured to:

Optionally, as another embodiment, the processor 1401 is further configured to:

Fig. 16 is a schematic structural diagram of a base station according to an embodiment of the present application, and as shown in fig. 16, the base station includes: a second partitioning module 1601, a receiving module 1602; wherein:

the second dividing module 1601 is configured to divide a resource used for transmitting an uplink channel into at least two resource groups after determining that the terminal uses a precoding matrix to switch diversity to transmit the uplink channel;

a receiving module 1602, configured to receive the uplink channel sent by the terminal based on the at least two resource group diversity; the uplink channel is sent through the antenna set diversity after the terminal divides resources for transmitting the uplink channel into at least two resource groups and maps each resource group to an antenna set through precoding based on a precoding matrix; the antenna set includes a plurality of physical antennas or a plurality of antenna ports.

Specifically, after determining that the terminal uses the precoding matrix to switch diversity to transmit the uplink channel through the second dividing module 1601, the base station divides the resource for transmitting the uplink channel into at least two resource groups, and then receives the uplink channel transmitted by the terminal based on the at least two resource group diversity through the receiving module 1602.

The base station provided in the embodiment of the present application is configured to execute the method described in the corresponding embodiment, and the specific steps of executing the method described in the corresponding embodiment by using the apparatus provided in the embodiment are the same as those in the corresponding embodiment, and achieve the same technical effects, which are not described herein again.

The base station provided by the embodiment of the application divides resources for transmitting an uplink channel into at least two resource groups, and receives the uplink channel sent by a terminal based on at least two resource group diversity, wherein the uplink channel is sent by the antenna set diversity after the terminal divides the resources for transmitting the uplink channel into at least two resource groups and maps each resource group to the antenna set through precoding based on a precoding matrix; the transmission performance of the uplink channel is improved, and for cell edge users, the transmission performance of the uplink channel is still better when the channel condition is poorer, so that the coverage requirement is met.

Optionally, on the basis of the foregoing embodiments, the second dividing module specifically includes;

a second time-frequency domain dividing module, configured to divide the resource for transmitting the uplink channel into at least two resource groups based on the number of the resource for transmitting the uplink channel divided in the time domain and the number of the resource for transmitting the uplink channel divided in the frequency domain; or

The second quantity dividing module is used for dividing the resources for transmitting the uplink channel into at least two resource groups based on the number of the determined resource groups; the number of the resource groups is predefined or set by the base station, and correspondingly, the number of the set resource groups is sent to the terminal, so that the terminal divides the resources for transmitting the uplink channel into at least two resource groups based on the number of the resource groups; and the resource occupied by each resource group is determined based on the uplink channel resource and the number of the resource groups.

Optionally, on the basis of the foregoing embodiments, the second time-frequency domain dividing module is specifically configured to: determining that the resources for transmitting the uplink channel are divided into a preset number X in a time domain, and determining that the resources for transmitting the uplink channel are divided into a preset number Y in a frequency domain;

Optionally, on the basis of the foregoing embodiments, the second time-frequency domain dividing module is further specifically configured to:

Optionally, on the basis of the foregoing embodiments, the base station further includes:

Fig. 17 is a schematic structural diagram of a base station according to another embodiment of the present application, and as shown in fig. 17, the base station 1700 may include at least one processor 1701, a memory 1702, at least one other user interface 1703, and a transceiver 1704. The various components in the base station 1700 are coupled together by a bus system 1705. It is understood that bus system 1705 is used to enable connected communication between these components. The bus system 1705 includes a power bus, a control bus, and a status signal bus, in addition to a data bus. For clarity of illustration, however, the various buses are designated in fig. 17 as the bus system 1705, which may include any number of interconnected buses and bridges, with one or more processors, represented by the processor 1701, and various circuits, represented by the memory 1702, being linked together. The bus system may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further in this application. The bus interface provides an interface. The transceiver 1704 may be multiple elements including a transmitter and a receiver providing a means for communicating with various other apparatus over a transmission medium. The user interface 1703 may also be an interface to enable external connection of a desired device for different user devices, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

It will be appreciated that the memory 1702 in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic random access memory (ddr Data Rate SDRAM, ddr SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 1702 of the systems and methods described in the various embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

The processor 1701 is responsible for managing the bus system and general processing, and the memory 1702 may store computer programs or instructions for use by the processor 1701 in performing operations, including, in particular,

the processor 1701 may be configured to:

The methods disclosed in the embodiments of the present application described above may be applied to the processor 1701 or implemented by the processor 1701. The processor 1701 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by instructions in the form of hardware, integrated logic circuits, or software in the processor 1701. The Processor 1701 may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 1702, and the processor 1701 reads the information in the memory 1702 and, in conjunction with its hardware, performs the steps of the above-described method.

Optionally, as another embodiment, the method further includes:

Optionally, as another embodiment, the determining that the terminal uses precoding matrix switching diversity to transmit the uplink channel includes:

Optionally, as another embodiment, after the receiving the uplink channel sent by the terminal based on the at least two resource group sets in a diversity manner, the method further includes:

The base station provided in the foregoing embodiments of the present application is configured to execute the method described in the foregoing corresponding embodiments, and the specific steps of executing the method described in the foregoing corresponding embodiments by using the apparatus provided in this embodiment are the same as those in the foregoing corresponding embodiments, and achieve the same technical effects, which are not described herein again.

The above description mainly introduces the solutions provided in the embodiments of the present application from the perspective of electronic devices (mobile terminals and base stations). It is understood that the electronic device provided in the embodiments of the present application includes a hardware structure and/or a software module for performing the above functions. Those of skill in the art would readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software.

Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiment of the present application, the electronic device and the like may be divided into the functional modules according to the method example, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode.

It should be noted that, in the embodiment of the present application, the division of the module is schematic, and is only one logic function division, and there may be another division manner in actual implementation.

It will be clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be performed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to perform all or part of the above described functions. For the specific working processes of the system, the apparatus and the unit described above, reference may be made to the corresponding processes in the foregoing method embodiments, and details are not described here again.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) or a processor to execute all or part of the steps of the method according to the embodiments of the present application. The computer storage medium is a non-transitory (English) medium, comprising: flash memory, removable hard drive, read only memory, random access memory, magnetic or optical disk, and the like.

In another aspect, the present application also provides a computer program product, where the computer program product includes a computer program stored on a non-transitory computer-readable storage medium, where the computer program includes program instructions, and when the program instructions are executed by a computer, the computer can execute the method for transmitting a signal provided by the above method embodiments, where the method includes:

Or comprises the following steps:

In another aspect, the present application also provides a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program is implemented by a processor to perform the method provided by the foregoing embodiments, and includes:

Or comprises the following steps:

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims

1. A method for transmitting an uplink channel, comprising:

2. The method according to claim 1, wherein the dividing the resources for transmitting the uplink channel into at least two resource groups comprises:

3. The method according to claim 2, wherein the dividing the resource for transmitting the uplink channel into at least two resource groups based on the number of the resource for transmitting the uplink channel divided in the time domain and the number of the resource for transmitting the uplink channel divided in the frequency domain comprises:

4. The method for transmitting an uplink channel according to claim 3, further comprising:

5. The method according to claim 2, wherein the number of the determined resource groups is a value that is smaller in a first number and a second number;

6. The method according to claim 5, wherein the second number is determined by calculating according to the following formula, where the second number is min (N, x) a B, where x has a value of 2 or 4;

7. The method according to claim 5, wherein if the number of the determined resource groups is the first number, the resources for transmitting the uplink channel are divided into Z resource groups according to an order of dividing the repeated transmission into different resource groups first, then dividing different RBs into different resource groups, and then dividing resources in each RB into different resource groups.

8. The method for transmitting uplink channel according to claim 1, wherein the precoding-matrix-based mapping of each resource group onto the antenna set comprises:

9. The method of claim 1 or 8, wherein the precoding matrix is randomly selected from at least two resource groups, or the precoding matrix is used from at least two resource groups based on a predefined order.

10. The method according to claim 1 or 8, wherein the number of rows/columns of the precoding matrix is greater than or equal to the number of physical antennas or the number of antenna ports in the antenna set.

11. The method for transmitting the uplink channel according to any one of claims 1 to 8, wherein the determining to transmit the uplink channel using precoding matrix switching diversity comprises:

12. A method for transmitting an uplink channel, comprising:

13. The method according to claim 12, wherein the dividing the resources for transmitting the uplink channel into at least two resource groups comprises:

14. The method according to claim 13, wherein the dividing the resource for transmitting the uplink channel into at least two resource groups based on the number of the resource for transmitting the uplink channel divided in the time domain and the number of the resource for transmitting the uplink channel divided in the frequency domain comprises:

15. The method for transmitting an uplink channel according to claim 14, further comprising:

16. The method according to claim 13, wherein the number of the determined resource groups is a value that is smaller in a first number and a second number;

17. The method according to claim 16, wherein the second number is determined by calculating according to the following formula, where the second number is min (N, x) a B, where x has a value of 2 or 4;

18. The method according to claim 16, wherein if the number of the determined resource groups is the first number, the resources for transmitting the uplink channel are divided into Z resource groups according to an order of dividing the repeated transmission into different resource groups, then dividing different RBs into different resource groups, and then dividing resources in each RB into different resource groups.

19. The method for transmitting the uplink channel according to any one of claims 12 to 18, wherein the determining that the terminal transmits the uplink channel using precoding matrix switching diversity comprises:

20. The method for transmitting uplink channel according to claim 12, wherein after the uplink channel transmitted by the terminal is received based on the at least two resource group sets in a diversity manner, the method further comprises:

21. A terminal, comprising:

22. A terminal comprising a memory, a processor, and a program stored on the memory and executable on the processor, wherein the processor when executing the program performs the steps of:

23. The terminal of claim 22, wherein the dividing the resources for transmitting the uplink channel into at least two resource groups comprises:

24. The terminal of claim 23, wherein the dividing the resources for transmitting the uplink channel into at least two resource groups based on the number of the resources for transmitting the uplink channel divided in the time domain and the number of the resources for transmitting the uplink channel divided in the frequency domain comprises:

25. The terminal of claim 24, wherein the steps further comprise:

26. The terminal of claim 23, wherein the determined number of resource groups is a fraction of the first number and the second number;

27. The terminal of claim 26, wherein the second number is determined according to the following equation, where x is 2 or 4;

28. The terminal of claim 26, wherein if the determined number of resource groups is the first number, the resources for transmitting the uplink channel are divided into Z resource groups according to an order of dividing repeated transmission into different resource groups first, then dividing different RBs into different resource groups, and then dividing resources in each RB into different resource groups.

29. The terminal of claim 22, wherein the precoding based matrix maps each resource group to a set of antennas through precoding, comprising:

30. The terminal according to claim 22 or 29, wherein the precoding matrix is randomly selected over at least two resource groups or the precoding matrix is used over at least two resource groups based on a predefined order.

31. The terminal according to claim 22 or 29, wherein the number of rows/columns of the precoding matrix is greater than or equal to the number of physical antennas or the number of antenna ports in the antenna set.

32. The terminal according to any of claims 22 to 29, wherein said determining to transmit the uplink channel using precoding matrix switch diversity comprises:

33. A base station, comprising:

34. A base station comprising a memory, a processor, and a program stored on the memory and executable on the processor, wherein the processor when executing the program performs the steps of:

35. The base station of claim 34, wherein the dividing the resources for transmitting the uplink channel into at least two resource groups comprises:

36. The base station of claim 35, wherein the dividing the resources for transmitting the uplink channel into at least two resource groups based on the number of the resources for transmitting the uplink channel divided in the time domain and the number of the resources for transmitting the uplink channel divided in the frequency domain comprises:

37. The base station of claim 36, wherein the steps further comprise:

38. The base station of claim 35, wherein the determined number of resource groups is a fraction of the first number and the second number;

39. The base station of claim 38, wherein the second number is determined by calculating the second number from the following equation, where x has a value of 2 or 4;

40. The base station of claim 38, wherein if the determined number of resource groups is the first number, the resources for transmitting the uplink channel are divided into Z resource groups according to an order of dividing repeated transmission into different resource groups first, then dividing different RBs into different resource groups, and then dividing resources in each RB into different resource groups.

41. The base station according to any of claims 34 to 40, wherein said determining that the terminal transmits the uplink channel using precoding matrix switching diversity comprises:

42. The base station of claim 34, wherein after the receiving the uplink channel transmitted by the terminal based on the at least two resource group sets, further comprises:

43. A non-transitory computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the steps of the method for transmission of an upstream channel according to any one of claims 1 to 11.

44. A non-transitory computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the steps of the method for transmission of an upstream channel according to any one of claims 12 to 20.