CN111132319B

CN111132319B - Data transmission method, network equipment, terminal and storage medium

Info

Publication number: CN111132319B
Application number: CN201811290435.9A
Authority: CN
Inventors: 王飞; 李岩; 王菡凝; 金婧; 刘光毅
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2018-10-31
Filing date: 2018-10-31
Publication date: 2022-08-23
Anticipated expiration: 2038-10-31
Also published as: WO2020088329A1; CN111132319A

Abstract

The embodiment of the invention discloses a data transmission method, network equipment, a terminal and a storage medium. The method comprises the following steps: the network equipment configures configuration information of at least two aperiodic Sounding Reference Signal (SRS) resource sets to a terminal; SRS resources in the at least two sets of aperiodic SRS resources are used for codebook transmission.

Description

Data transmission method, network equipment, terminal and storage medium

Technical Field

The present invention relates to the field of wireless communication technologies, and in particular, to a data transmission method, a network device, a terminal, and a storage medium.

Background

In a New wireless (NR, New Radio) system, Sounding Reference Signals (SRS) used for uplink and downlink Beam Management have four purposes, which are respectively used for CodeBook (CB, CodeBook) transmission, Non-CodeBook (NCB, Non-CodeBook) transmission, Beam Management (BM, Beam Management) and Antenna Switching (AS). In time domain behavior, there are periodic SRS (P-SRS), semi-persistent SRS (SP-SRS), and aperiodic SRS (AP-SRS).

The network side configures at most one SRS resource set for codebook transmission for the terminal, wherein the SRS resource set at most comprises two SRS resources; for high frequencies, the two SRS resources may be configured to associate with different beams. However, the high frequency is greatly affected by factors such as occlusion, and beam switching may occur frequently. When beam switching occurs, a network side needs to reconfigure an AP-SRS Resource set for a terminal through Radio Resource Control (RRC) signaling, and then trigger the terminal to send the SRS Resource set through Downlink Control Information (DCI), which may cause a large time delay (in the order of hundreds of milliseconds) in a beam switching process and may cause a scenario that beam switching occurs again when reconfiguration is completed. Therefore, there is no effective solution to solve the fast switching of the high frequency beam.

Disclosure of Invention

In order to solve the existing technical problem, embodiments of the present invention provide a data transmission method, a network device, a terminal, and a storage medium.

In order to achieve the above purpose, the technical solution of the embodiment of the present invention is realized as follows:

an embodiment of the present invention provides a data transmission method, where the method includes:

the network equipment configures configuration information of at least two aperiodic SRS resource sets to the terminal; SRS resources in the at least two sets of aperiodic SRS resources are used for codebook transmission.

In the above scheme, the method further comprises:

the network equipment configures configuration information of a mapping relation between an indication bit of DCI and an aperiodic SRS resource set to the terminal; wherein the set of aperiodic SRS resources comprises a set of aperiodic SRS resources for codebook transmission.

In the foregoing solution, the configuring, by the network device, the configuration information of the mapping relationship between the indication bits in the DCI and the aperiodic SRS resource set to the terminal includes:

and the network equipment sends configuration information of the mapping relation between the indication bits in the DCI and the aperiodic SRS resource set to the terminal through a Media Access Control (MAC) signaling.

In the foregoing solution, the method further includes: and the network equipment determines the number of the indicating bits of the DCI through high-layer signaling.

In the above scheme, the number of the indicating bits of the DCI is 1 bit, 2 bits, or 3 bits.

In the above scheme, the method further comprises: the network equipment sends DCI to the terminal; wherein the content of the first and second substances,

and determining the value of the indicator bit in the DCI based on the configuration information, or determining the value of the indicator bit in the DCI based on a pre-agreed mapping relation between the indicator bit of the DCI and the aperiodic SRS resource set.

The embodiment of the invention also provides a data transmission method, which comprises the following steps:

a terminal receives configuration information of at least two aperiodic SRS resource sets configured by network equipment; SRS resources in the at least two sets of aperiodic SRS resources are used for codebook transmission.

In the above scheme, the method further comprises: the terminal receives configuration information of a mapping relation between indication bits of DCI configured by the network equipment and an aperiodic SRS resource set; wherein the set of aperiodic SRS resources comprises a set of aperiodic SRS resources for codebook transmission.

In the above scheme, the receiving, by the terminal, configuration information of a mapping relationship between an indication bit of DCI configured by the network device and an aperiodic SRS resource set includes:

and the terminal receives the configuration information of the mapping relation between the indication bits of the DCI configured by the network equipment and the aperiodic SRS resource set through MAC signaling.

In the above scheme, the method further comprises: and the terminal receives DCI of the network equipment, and determines an aperiodic SRS resource set corresponding to the indicating bit of the DCI based on the configuration information.

In the foregoing solution, the method further includes: and the terminal receives the DCI of the network equipment, and determines an aperiodic SRS resource set corresponding to the indicating bit of the DCI based on a pre-promissory mode.

In the above scheme, the method further comprises: the terminal transmits a set of aperiodic SRS resources to the network device based on the DCI.

The embodiment of the invention also provides network equipment, which comprises a first communication unit, a second communication unit and a control unit, wherein the first communication unit is used for configuring configuration information of at least two aperiodic SRS resource sets to a terminal; SRS resources in the at least two sets of aperiodic SRS resources are used for codebook transmission.

In the foregoing solution, the first communication unit is further configured to configure, to the terminal, configuration information of a mapping relationship between an indication bit of DCI and an aperiodic SRS resource set; wherein the set of aperiodic SRS resources comprises a set of aperiodic SRS resources for codebook transmission.

In the foregoing solution, the first communication unit is configured to send, to the terminal through MAC signaling, configuration information of a mapping relationship between an indication bit in DCI and an aperiodic SRS resource set.

In the foregoing solution, the network device further includes a first processing unit, configured to determine the number of indicator bits of the DCI through a high-layer signaling.

In the foregoing solution, the first communication unit is further configured to send DCI to the terminal; and determining the value of the indicator bit in the DCI based on the configuration information, or determining the value of the indicator bit in the DCI based on a mapping relation between the indicator bit of the DCI agreed in advance and the aperiodic SRS resource set.

The embodiment of the invention also provides a terminal, which comprises a second communication unit, a second communication unit and a second communication unit, wherein the second communication unit is used for receiving configuration information of at least two aperiodic SRS resource sets configured by network equipment; SRS resources in the at least two sets of aperiodic SRS resources are used for codebook transmission.

In the foregoing solution, the second communication unit is further configured to receive configuration information of a mapping relationship between indication bits of DCI configured by the network device and an aperiodic SRS resource set; wherein the set of aperiodic SRS resources comprises a set of aperiodic SRS resources for codebook transmission.

In the foregoing solution, the second communication unit is configured to receive, through MAC signaling, configuration information of a mapping relationship between an indication bit of DCI configured by the network device and an aperiodic SRS resource set.

In the above solution, the terminal further includes a second processing unit;

the second communication unit is further configured to receive DCI of the network device;

the second processing unit is configured to determine an aperiodic SRS resource set corresponding to an indication bit of the DCI based on the configuration information.

In the above scheme, the terminal further includes a second processing unit;

the second processing unit is configured to determine an aperiodic SRS resource set corresponding to the indicating bit of the DCI based on a pre-agreed manner.

In the foregoing scheme, the second processing unit is further configured to transmit an aperiodic SRS resource set to the network device based on the DCI.

An embodiment of the present invention further provides a 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 data transmission method applied to a network device according to the embodiment of the present invention; alternatively, the program may be executed by a processor to implement the steps of the data transmission method applied to the terminal according to the embodiment of the present invention.

The embodiment of the present invention further provides a network device, which includes a memory, a processor, and a computer program stored in the memory and capable of running on the processor, and when the processor executes the computer program, the steps of the data transmission method applied to the network device according to the embodiment of the present invention are implemented.

The embodiment of the invention also provides a terminal, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the processor executes the program to realize the steps of the data transmission method applied to the terminal.

The data transmission method, the network equipment, the terminal and the storage medium provided by the embodiment of the invention comprise the following steps: the network equipment configures configuration information of at least two aperiodic SRS resource sets to the terminal; SRS resources in the at least two sets of aperiodic SRS resources are used for codebook transmission. By adopting the technical scheme of the embodiment of the invention, at least two aperiodic SRS resource sets are configured to the terminal through the network equipment, so that the condition that when the wave beam is switched, the aperiodic SRS used for codebook transmission needs to be reconfigured for the terminal by the network side for the aperiodic SRS is avoided, the high-frequency wave beam is rapidly switched, and the system performance is ensured.

Drawings

FIG. 1 is a schematic view of an interaction flow of beam management;

fig. 2 is a first flowchart illustrating a data transmission method according to an embodiment of the present invention;

fig. 3 is a second flowchart illustrating a data transmission method according to an embodiment of the invention;

fig. 4 is a third schematic flowchart of a data transmission method according to an embodiment of the present invention;

fig. 5a and 5b are schematic diagrams of mapping relationships before and after beam switching in the data transmission method according to the embodiment of the present invention, respectively;

fig. 6 is a fourth schematic flowchart of a data transmission method according to an embodiment of the present invention;

fig. 7 is a fifth flowchart illustrating a data transmission method according to an embodiment of the present invention;

fig. 8 is a sixth schematic flowchart of a data transmission method according to an embodiment of the present invention;

fig. 9 is a seventh flowchart illustrating a data transmission method according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a network device according to an embodiment of the present invention;

fig. 11 is a schematic diagram of another structure of a network device according to an embodiment of the present invention;

fig. 12 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 13 is a schematic diagram of another structure of the terminal according to the embodiment of the present invention;

fig. 14 is a schematic diagram of a hardware component structure of a communication device according to an embodiment of the present invention.

Detailed Description

Before describing the data transmission scheme in detail, the interaction flow of beam management and the data transmission method are briefly described. FIG. 1 is a schematic view of an interaction flow of beam management; as shown in fig. 1, includes:

step 101: user Equipment (UE) reports the UE capability and reports the UE capability to a base station (gNB).

For example, if the terminal is equipped with 2 antenna panels (panels), each having 8 beams (beams), the terminal reports this capability information to the base station.

Step 102: and the base station performs BM SRS configuration.

For example, the base station configures 8 SRS resources (resources), each SRS resource corresponding to 8 beams (denoted as beam1-1 to beam1-8) of panel 1 of 2 panels, and 8 beams (denoted as beam2-1 to beam2-8) of panel2, respectively.

Step 103: the UE sends a BM SRS set (set) to the base station, wherein the BM SRS set comprises the 8 SRS resources.

Step 104: and the base station performs CB AP-SRS set configuration.

For example, the base station judges that beam1-1 and beam2-1 are better, and configures 1 CB AP-SRS set, wherein the set comprises 2 SRS resources; herein, the SRS resource 1 uses beam1-1, and the SRS resource 2 uses beam 2-1.

Step 105: the base station sends an SRS request to trigger the UE to send the CB AP-SRS set. For example, a base station triggers the UE to transmit a CB AP-SRS set by a 2-bit (bit) SRS request of DCI.

Step 106: the UE transmits the CB AP-SRS set.

Step 107: the base station transmits a Scheduling Request Indication (SRI).

For example, the base station determines that the SRS resource 1 has good performance, and indicates the performance through the SRI.

Therefore, the network side (i.e. the base station) configures at most one CB SRS set for the UE, wherein the CB SRS set comprises at most 2 SRS resources; and triggering the UE to send the CB AP-SRS set through the SRS request of 2 bits (bit) of the DCI, so that the fast switching of the high-frequency wave beam cannot be realized.

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

The embodiment of the invention provides a data transmission method. Fig. 2 is a first flowchart illustrating a data transmission method according to an embodiment of the present invention; as shown in fig. 2, the method includes:

step 201: the network equipment configures configuration information of at least two aperiodic SRS (AP-SRS) resource sets to the terminal; SRS resources in the at least two sets of aperiodic SRS resources are used for Codebook (CB) transmission.

In this embodiment, each of the at least two sets of aperiodic SRS resources includes at least one SRS resource.

The embodiment of the invention configures at least two aperiodic SRS resource sets to the terminal through the network equipment, thereby avoiding that when the wave beam is switched, the network side needs to reconfigure the aperiodic SRS used for codebook transmission for the terminal through RRC signaling for the aperiodic SRS, realizing the fast switching of high-frequency wave beam and ensuring the system performance.

In an alternative embodiment of the present application, as shown in fig. 3, the method further comprises:

step 202: the network equipment configures configuration information of a mapping relation between indication bits of DCI and an aperiodic SRS resource set to the terminal; wherein the set of aperiodic SRS resources comprises a set of aperiodic SRS resources for codebook transmission.

In this embodiment, different values of the indicating bits of the DCI indicate different meanings. Taking the 2-bit indication bit of the DCI as an example, the corresponding four states include: 00-no transmission; 01-denotes sending SRS set; 10-indicates sending SRS sets; 11-indicates that SRS set is transmitted; and the network equipment transmits the configuration information of the mapping relation between the indication bits of the DCI and the aperiodic SRS resource set to the terminal.

In this embodiment, the configuring, by the network device, the configuration information of the mapping relationship between the indication bit in the DCI and the aperiodic SRS resource set to the terminal includes: and the network equipment sends configuration information of the mapping relation between the indication bits in the DCI and the aperiodic SRS resource set to the terminal through Medium Access Control (MAC) signaling. Compared with RRC signaling, the adoption of MAC signaling can greatly shorten the time delay.

In an optional embodiment of the present application, the method further comprises: and the network equipment determines the number of the indicating bits of the DCI through high-layer signaling.

In an optional embodiment of the present application, the number of the indication bits of the DCI is 1 bit, 2 bits, or 3 bits.

In an alternative embodiment of the present application, as shown in fig. 4, the method further comprises:

step 203: the network equipment sends DCI to the terminal; and determining the value of the indicator bit in the DCI based on the configuration information, or determining the value of the indicator bit in the DCI based on a mapping relation between the indicator bit of the DCI agreed in advance and the aperiodic SRS resource set.

It can be understood that the value of the indicator bit in the DCI sent by the network device to the terminal corresponds to the aperiodic SRS resource set; the value of the indicating bit in the DCI is determined based on the configuration information; or the mapping relation between the indication bits of the pre-agreed DCI and the aperiodic SRS resource set is determined. For the method determined based on the mapping relationship between the indication bits of the pre-agreed DCI and the aperiodic SRS resource set, it can be understood that the network device does not need to send the configuration information of the mapping relationship between the indication bits of the DCI and the aperiodic SRS resource set to the terminal, i.e. does not need to execute step 202; the network equipment and the terminal pre-agree on the mapping relation between the indicating bits of the DCI and the aperiodic SRS resource set.

The following describes embodiments of the present invention with reference to specific examples.

The network equipment can configure 2 BM SRS sets for the terminal through RRC signaling, wherein each BM SRS set comprises 8 SRS resources and corresponds to 2 panels of the terminal respectively; each BM SRS set corresponds to one panel; the SRS resources in each BM SRS set correspond to beams in panel, respectively, as shown in Table 1.

TABLE 1

The network equipment can configure 4 CB AP-SRS sets for the terminal through RRC signaling; wherein CB AP-SRS set 1 contains 2 SRS resources (SRS resource 1-1 and SRS resource 1-2, associated with BM SRS resource 1-1 and BM SRS resource 1-2, respectively), CB AP-SRS set 2 contains 2 SRS resources (SRS resource 2-1 and SRS resource 2-2, associated with BM SRS resource 1-3 and BM SRS resource 1-4, respectively), CB AP-SRS set 3 contains 2 SRS resources (SRS resource 3-1 and SRS resource3-2, associated with BM resource 2-1 and BM SRS resource 2-2, respectively), CB AP-SRS resource set 4 contains 2 SRS resources (SRS resource 3-1 and SRS resource3-2, associated with BM resource 2-1 and BM resource 2-2, respectively), CB AP-resource 4 contains 2 SRS resources (SRS resource 4-1 and SRS resource 4-2, associated with BM resource 2-3 and BM resource 2-4, respectively), as shown in table 2.

TABLE 2

Assume that the AP-SRS set configured by the network device for the terminal has 1 NCB AP-SRS set, 1 BM AP-SRS set and 1 AS AP-SRS set besides the 4 CB AP-SRS sets, namely 7 AP-SRS sets in total.

The network device configures mapping relationships between a plurality of states of an indicator bit in DCI and 7 AP-SRS sets for the terminal through MAC signaling, for example, at a certain moment, the network device configures the mapping relationship shown in FIG. 5a for the terminal according to information such as feedback information and channel conditions of the terminal, that is, the network device can subsequently dynamically trigger the terminal to transmit CB AP-SRS set 1 and CB AP-SRS set 2 (associated with four beams 1-1/1-2/1-3/1-4 of the terminal Panel 1) through the DCI.

When the channel state information of the terminal changes, the network device configures the mapping relationship shown in fig. 5b for the UE according to the feedback information, channel condition and other information of the terminal, that is, the network device may subsequently dynamically trigger the UE to transmit CB AP-SRS set 1 and CB AP-SRS set 3 through DCI (associated with 2 beams 1-1/1-2 of terminal Panel 1 and 2 beams 2-1/2-2 of terminal Panel 2). Therefore, the signaling overhead of DCI is not required to be increased, and the AP-SRS can support the quick switching of the beam.

The embodiment of the invention also provides a data transmission method. Fig. 6 is a fourth schematic flowchart of a data transmission method according to an embodiment of the present invention; as shown in fig. 6, the method includes:

step 301: a terminal receives configuration information of at least two aperiodic SRS resource sets configured by network equipment; SRS resources in the at least two sets of aperiodic SRS resources are used for codebook transmission.

In an alternative embodiment of the present application, as shown in fig. 7, the method further comprises:

step 302: the terminal receives configuration information of a mapping relation between indication bits of DCI configured by the network equipment and an aperiodic SRS resource set; wherein the set of aperiodic SRS resources comprises a set of aperiodic SRS resources for codebook transmission.

In this embodiment, different values of the indicating bits of the DCI indicate different meanings. Taking the 2-bit indication bit of the DCI as an example, the corresponding four states include: 00-no transmission; 01-denotes sending SRS set; 10-denotes sending SRS sets; 11-indicates that SRS set is transmitted; and the network equipment sends the configuration information of the mapping relation between the indication bits of the DCI and the aperiodic SRS resource set to the terminal.

In an optional embodiment of the present application, the receiving, by the terminal, configuration information of a mapping relationship between indication bits of DCI configured by the network device and an aperiodic SRS resource set includes: and the terminal receives configuration information of the mapping relation between the indication bits of the DCI configured by the network equipment and the aperiodic SRS resource set through MAC signaling. Compared with RRC signaling, the adoption of MAC signaling can greatly shorten the time delay.

In an alternative embodiment of the present application, as shown in fig. 8, the method further comprises:

step 303 a: and the terminal receives DCI of the network equipment, and determines an aperiodic SRS resource set corresponding to the indicating bit of the DCI based on the configuration information.

Step 304: the terminal transmits a set of aperiodic SRS resources to the network device based on the DCI.

In the embodiment, a terminal first receives configuration information of a mapping relation between an indication bit of DCI configured by a network device and an aperiodic SRS resource set; and after further receiving the DCI, determining an aperiodic SRS resource set corresponding to the indicating bit of the DCI through the configuration information, and triggering the terminal to send the corresponding aperiodic SRS resource set to the network equipment.

In an alternative embodiment of the present application, as shown in fig. 9, the method further comprises:

step 303 b: and the terminal receives the DCI of the network equipment, and determines an aperiodic SRS resource set corresponding to the indicating bit of the DCI based on a pre-promissory mode.

In this embodiment, the terminal does not need to receive configuration information of a mapping relationship between an indication bit of DCI configured by the network device and the aperiodic SRS resource set; and determining an aperiodic SRS resource set corresponding to the indicating bits of the DCI through a mapping relation between the indicating bits of the DCI agreed in advance or configured in advance and the aperiodic SRS resource set, and triggering the terminal to send the corresponding aperiodic SRS resource set to the network equipment.

The embodiment of the invention configures at least two aperiodic SRS resource sets to the terminal through the network equipment, avoids that when the wave beam is switched, for the aperiodic SRS, a network side needs to reconfigure the aperiodic SRS used for codebook transmission for the terminal through RRC signaling, realizes the fast switching of high-frequency wave beams, ensures the system performance, does not need to increase the signaling overhead of DCI, and can enable the AP-SRS to support the fast switching of the wave beam.

The embodiment of the invention also provides network equipment. Fig. 10 is a schematic structural diagram of a network device according to an embodiment of the present invention; as shown in fig. 10, the network device includes a first communication unit 41, configured to configure configuration information of at least two aperiodic SRS resource sets to a terminal; SRS resources in the at least two sets of aperiodic SRS resources are used for codebook transmission.

In an optional embodiment of the present application, the first communication unit 41 is further configured to configure, to the terminal, configuration information of a mapping relationship between an indication bit of DCI and an aperiodic SRS resource set; wherein the set of aperiodic SRS resources comprises a set of aperiodic SRS resources for codebook transmission.

In an optional embodiment of the present application, the first communication unit 41 is configured to send configuration information of a mapping relationship between an indication bit in DCI and an aperiodic SRS resource set to the terminal through MAC signaling.

In an optional embodiment of the present application, as shown in fig. 11, the network device further includes a first processing unit 42, configured to determine the number of indicator bits of the DCI through high layer signaling.

In an optional embodiment of the present application, the first communication unit 41 is further configured to send DCI to the terminal; wherein a value of the indicator bit in the DCI is determined based on the configuration information, or the value of the indicator bit in the DCI is determined based on a pre-agreed mapping relationship between the indicator bit of the DCI and the aperiodic SRS resource set.

In the embodiment of the present invention, the first Processing Unit 42 in the network device may be implemented by a Central Processing Unit (CPU), a Digital Signal Processor (DSP), a Micro Control Unit (MCU), or a Programmable Gate Array (FPGA) in the network device in practical application; the first communication unit 41 in the network device can be implemented by a communication module (including a basic communication suite, an operating system, a communication module, a standardized interface, a protocol, etc.) and a transceiver antenna in practical application.

It should be noted that: in the network device provided in the foregoing embodiment, when data transmission is performed, only the division of the program modules is described as an example, and in practical applications, the processing distribution may be completed by different program modules according to needs, that is, the internal structure of the network device is divided into different program modules to complete all or part of the processing described above. In addition, the network device and the data transmission method provided by the above embodiments belong to the same concept, and specific implementation processes thereof are described in the method embodiments for details, which are not described herein again.

The embodiment of the invention also provides the terminal. Fig. 12 is a schematic structural diagram of a terminal according to an embodiment of the present invention; as shown in fig. 12, the terminal includes a second communication unit 51, configured to receive configuration information of at least two aperiodic sounding reference signal SRS resource sets configured by a network device; SRS resources in the at least two sets of aperiodic SRS resources are used for codebook transmission.

In an optional embodiment of the present application, the second communication unit 51 is further configured to receive configuration information of a mapping relationship between indication bits of DCI configured by the network device and an aperiodic SRS resource set; wherein the set of aperiodic SRS resources comprises a set of aperiodic SRS resources for codebook transmission.

In an optional embodiment of the present application, the second communication unit 51 is configured to receive, through MAC signaling, configuration information of a mapping relationship between indication bits of DCI configured by the network device and an aperiodic SRS resource set.

In an alternative embodiment of the present application, as shown in fig. 13, the terminal further comprises a second processing unit 52; the second communication unit 51 is further configured to receive DCI of the network device;

the second processing unit 52 is configured to determine an aperiodic SRS resource set corresponding to an indication bit of the DCI based on the configuration information.

In an alternative embodiment of the present application, as shown in fig. 13, the terminal further includes a second processing unit 52; the second communication unit 51 is further configured to receive DCI of the network device;

the second processing unit 52 is configured to determine an aperiodic SRS resource set corresponding to the indication bit of the DCI based on a pre-agreed manner.

In an optional embodiment of the present application, as shown in fig. 13, the second processing unit 52 is further configured to transmit an aperiodic SRS resource set to the network device based on the DCI.

In the embodiment of the present invention, the second processing unit 52 in the terminal may be implemented by a CPU, a DSP, an MCU or an FPGA in the terminal in practical application; the second communication unit 51 in the terminal can be implemented by a communication module (including a basic communication suite, an operating system, a communication module, a standardized interface, a protocol, etc.) and a transceiver antenna in practical application.

It should be noted that: in the terminal provided in the foregoing embodiment, when performing data transmission, only the division of each program module is described as an example, and in practical applications, the processing allocation may be completed by different program modules as needed, that is, the internal structure of the terminal is divided into different program modules, so as to complete all or part of the processing described above. In addition, the terminal and the data transmission method provided by the above embodiments belong to the same concept, and the specific implementation process thereof is described in the method embodiments, which is not described herein again.

The embodiment of the invention also provides a communication system; the communication system comprises network equipment and a terminal; the network device may be configured to implement the corresponding function implemented by the network device in the foregoing method, and the terminal may be configured to implement the corresponding function implemented by the terminal in the foregoing method, which is not described herein again for brevity.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), a Long Term Evolution (Long Term Evolution, LTE) System, an LTE Frequency Division Duplex (FDD) System, an LTE Time Division Duplex (TDD), a Universal Mobile Telecommunications System (UMTS), or a 5G System, etc.

Illustratively, the network device of the embodiment of the present application may be a device communicating with a terminal. A network device may provide communication coverage for a particular geographic area and may communicate with terminal devices located within that coverage area. Alternatively, the network device may be a base station in a communication system, such as an evolved node b (eNB) in an LTE system, or a base station (gNB) in a 5G system, and so on.

The embodiment of the invention also provides communication equipment, which can be network equipment or a terminal. Fig. 14 is a schematic diagram of a hardware component structure of a communication device according to an embodiment of the present invention; as shown in fig. 14, the communication device includes a memory 62, a processor 61, and a computer program stored on the memory 62 and executable on the processor 61.

It will be appreciated that the communication device also includes a communication interface 63. The various components in the communication device are coupled together by a bus system 64. It will be appreciated that the bus system 64 is used to enable communications among the components. The bus system 64 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 64 in fig. 14.

It will be appreciated that the memory 62 can be either volatile memory or nonvolatile memory, and can include both volatile and nonvolatile memory. Among them, the nonvolatile Memory may be a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), a magnetic random access Memory (FRAM), a magnetic random access Memory (Flash Memory), a magnetic surface Memory, an optical Disc, or a Compact Disc Read-Only Memory (CD-ROM); the magnetic surface storage may be disk storage or tape storage. 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 (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced DRAM), Synchronous Dynamic Random Access Memory (SLDRAM), Direct Memory (DRmb Access), and Random Access Memory (DRAM). The memory 62 described in connection with the embodiments of the invention is intended to comprise, without being limited to, these and any other suitable types of memory.

The method disclosed in the above embodiments of the present invention may be applied to the processor 61, or may be implemented by the processor 61. The processor 61 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 61. The processor 61 described above may be a general purpose processor, a DSP, or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. Processor 61 may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present invention. The general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed by the embodiment of the invention can be directly implemented by a hardware decoding processor, or can be implemented by combining hardware and software modules in the decoding processor. The software modules may be located in a storage medium located in the memory 62, and the processor 61 reads the information in the memory 62 and performs the steps of the aforementioned method in conjunction with its hardware.

In an exemplary embodiment, the communication Device may be implemented by one or more Application Specific Integrated Circuits (ASICs), DSPs, Programmable Logic Devices (PLDs), Complex Programmable Logic Devices (CPLDs), Field-Programmable Gate arrays (FPGAs), general purpose processors, controllers, Micro Controllers (MCUs), microprocessors (microprocessors), or other electronic components for performing the aforementioned methods.

Optionally, the communication device may specifically be the network device in the embodiment of the present application, and the communication device may implement the corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Optionally, the communication device may specifically be a terminal in the embodiment of the present application, and the communication device may implement a corresponding process implemented by the terminal in each method in the embodiment of the present application, and for brevity, details are not described here again.

Embodiments of the present application also provide a computer-readable storage medium having a computer program stored thereon.

Optionally, the computer-readable storage medium may be applied to the network device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the network device in each method in the embodiment of the present application, which is not described herein again for brevity.

Optionally, the computer-readable storage medium may be applied to a terminal in the embodiment of the present application, and the computer program enables the computer to execute corresponding processes implemented by the terminal in the methods in the embodiment of the present application, which are not described herein again for brevity.

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. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.

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, that is, 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, all the functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately regarded as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.

Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: a removable storage device, a ROM, a RAM, a magnetic or optical disk, or various other media that can store program code.

Alternatively, the integrated unit of the present invention may be stored in a computer-readable storage medium if it is implemented in the form of a software functional module and sold or used as a separate product. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or a part contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a removable storage device, a ROM, a RAM, a magnetic or optical disk, or various other media capable of storing program code.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A method of data transmission, the method comprising:

the network equipment configures configuration information of at least two aperiodic Sounding Reference Signal (SRS) resource sets to a terminal; SRS resources in the at least two sets of aperiodic SRS resources are used for codebook transmission;

the network equipment sends DCI to the terminal; the value of the indicating bit in the DCI is determined based on a mapping relation between the indicating bit of the pre-agreed DCI and the aperiodic SRS resource set; the number of the indicating bits of the DCI is determined through high layer signaling.

2. The method of claim 1, further comprising:

the network equipment configures configuration information of a mapping relation between an indication bit of Downlink Control Information (DCI) and an aperiodic SRS resource set to the terminal; wherein the set of aperiodic SRS resources comprises a set of aperiodic SRS resources for codebook transmission.

3. The method of claim 2, wherein the network device configures configuration information indicating a mapping relationship between bits in the DCI and the aperiodic SRS resource set to the terminal, and the method comprises:

and the network equipment sends configuration information of the mapping relation between the indication bits in the DCI and the aperiodic SRS resource set to the terminal through Media Access Control (MAC) signaling.

4. The method of claim 1, wherein the number of indicator bits of the DCI is 1 bit, 2 bits, or 3 bits.

5. The method according to any one of claims 1 to 3,

and the value of the indication bit in the DCI is determined based on the configuration information.

6. A method of data transmission, the method comprising:

a terminal receives configuration information of at least two aperiodic Sounding Reference Signal (SRS) resource sets configured by network equipment; SRS resources in the at least two sets of aperiodic SRS resources are used for codebook transmission;

the terminal receives DCI of the network equipment; the value of the indicating bit in the DCI is determined based on a mapping relation between the indicating bit of the pre-agreed DCI and the aperiodic SRS resource set; the number of the indicating bits of the DCI is determined through high layer signaling.

7. The method of claim 6, further comprising:

the terminal receives configuration information of a mapping relation between indication bits of DCI configured by the network equipment and an aperiodic SRS resource set; wherein the set of aperiodic SRS resources comprises a set of aperiodic SRS resources for codebook transmission.

8. The method of claim 7, wherein the terminal receives configuration information of mapping relationship between indication bits of DCI configured by the network device and aperiodic SRS resource set, and the method comprises:

9. The method according to any one of claims 6 to 8, further comprising:

and the terminal receives DCI of the network equipment, and determines an aperiodic SRS resource set corresponding to the indicating bit of the DCI based on the configuration information.

10. The method of claim 6, further comprising:

and determining an aperiodic SRS resource set corresponding to the indicating bit of the DCI based on a pre-promissory mode.

11. The method of claim 10, further comprising:

the terminal transmits a set of aperiodic SRS resources to the network device based on the DCI.

12. Network equipment, characterized in that the network equipment comprises a first communication unit, configured to configure configuration information of at least two aperiodic SRS resource sets to a terminal; SRS resources in the at least two sets of aperiodic SRS resources are used for codebook transmission;

the first communication unit is further configured to send DCI to the terminal; the value of the indicating bit in the DCI is determined based on a mapping relation between the indicating bit of the pre-agreed DCI and the aperiodic SRS resource set; the number of the indicating bits of the DCI is determined through high layer signaling.

13. The network device of claim 12, wherein the first communication unit is further configured to configure, to the terminal, configuration information of a mapping relationship between indication bits of DCI and an aperiodic SRS resource set; wherein the set of aperiodic SRS resources comprises a set of aperiodic SRS resources for codebook transmission.

14. The network device of claim 13, wherein the first communication unit is configured to send configuration information of a mapping relationship between an indication bit in DCI and an aperiodic SRS resource set to the terminal through MAC signaling.

15. The network device of claim 12, wherein the number of indicator bits of the DCI is 1 bit, 2 bits, or 3 bits.

16. The network device of any one of claims 12 to 14, wherein a value of an indicator bit in the DCI is determined based on the configuration information.

17. A terminal is characterized in that the terminal comprises a second communication unit, configured to receive configuration information of at least two aperiodic Sounding Reference Signal (SRS) resource sets configured by a network device; SRS resources in the at least two sets of aperiodic SRS resources are used for codebook transmission;

the second communication unit is further configured to receive DCI of the network device; the value of the indicating bit in the DCI is determined based on a mapping relation between the indicating bit of the pre-agreed DCI and the aperiodic SRS resource set; the number of the indicating bits of the DCI is determined through high layer signaling.

18. The terminal of claim 17, wherein the second communication unit is further configured to receive configuration information about a mapping relationship between indication bits of DCI configured by the network device and an aperiodic SRS resource set; wherein the set of aperiodic SRS resources comprises a set of aperiodic SRS resources for codebook transmission.

19. The terminal of claim 18, wherein the second communication unit is configured to receive configuration information of a mapping relationship between indication bits of DCI configured by the network device and an aperiodic SRS resource set through MAC signaling.

20. The terminal according to any of the claims 17 to 19, characterized in that the terminal further comprises a second processing unit;

21. The terminal of claim 17, further comprising a second processing unit;

the second processing unit is configured to determine an aperiodic SRS resource set corresponding to the indication bit of the DCI based on a pre-agreed manner.

22. The terminal of claim 21, wherein the second processing unit is further configured to transmit a set of aperiodic SRS resources to the network device based on the DCI.

23. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 5; alternatively, the program is adapted to carry out the steps of the method of any one of claims 6 to 11 when executed by a processor.

24. A network device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the steps of the method according to any of claims 1 to 5 are implemented when the processor executes the program.

25. A terminal comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the steps of the method of any one of claims 6 to 11 are carried out when the program is executed by the processor.