CN114501569B

CN114501569B - Data transmission method, device, terminal and network side equipment

Info

Publication number: CN114501569B
Application number: CN202011147008.2A
Authority: CN
Inventors: 王蒙军; 苏昕; 陈润华; 高秋彬
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2020-10-23
Filing date: 2020-10-23
Publication date: 2024-03-15
Anticipated expiration: 2040-10-23
Also published as: CN114501569A

Abstract

The embodiment of the invention provides a data transmission method, a data transmission device, a terminal and network side equipment, wherein the method comprises the following steps: determining that at least two beam information are configured or activated by a higher layer; receiving a first command, wherein the first command comprises switching indication information; the switching indication information is used for indicating the current beam information used by the terminal in the at least two beam information; and at the corresponding transmission time, carrying out uplink data transmission by utilizing the beam information indicated by the switching indication information. In the embodiment of the invention, the terminal can dynamically select or dynamically switch among single or multiple beam information according to the switch indication information, so as to adapt to the continuously changing channel condition, improve the quality of an uplink and improve the reliability or throughput of the uplink.

Description

Data transmission method, device, terminal and network side equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a data transmission method, a data transmission device, a terminal, and a network side device.

Background

In some scenarios, the terminal needs to support the ebbb (enhanced Mobile Broadband ) service and the URLLC (Ultra-Reliable Low Latency Communications, low latency and high reliability) service, and the terminal switches a certain beam or certain beams to transmit PUSCH (Physical Uplink Shared Channel ) at different occasions, and a certain beam or certain beams on the base station side can be jointly or independently received, which is significant for improving PUSCH throughput or reliability. However, the base station adopts a method of configuring high-layer signaling and activating beam information (uplink beam information can be generally represented by using spatial relationship information), and it is difficult to control the terminal to dynamically switch different beams to transmit PUSCH corresponding to single/multiple beams of the base station.

In the scenario of multiple TRP (Transmitor Receive Point, transmitting/receiving node), the PUSCH based on the codebook is received by two TRPs, the base station may configure two spatial relations in one SRS (Sounding Reference Signal ) resource, each spatial relation corresponds to a different TRP, the base station selects the SRS resource through one DCI (Downlink Control Information ), and the terminal uses the beam obtained by the spatial relation configured in the SRS resource to transmit the PUSCH. The terminal transmits the PUSCH to different TRPs respectively according to the spatial relationship, and the reliability of the PUSCH can be improved when a certain uplink is blocked.

For PUSCH based on a non-codebook, a base station configures a reference signal corresponding to a certain received beam to a terminal through a high-layer command, namely, a spatial relation CSI-RS (Channel State Information Reference Signal ) of an SRS resource set, and the terminal selects a matched beam based on the reference signal to transmit PUSCH. In the prior art, an SRS resource set is supported, and the resource set is configured with the CSI-RS and is limited; the terminal does not expect to configure the associated CSI-RS of the SRS resource set and the spatial relationship of the SRS resources at the same time.

The DMRS (Demodulation Reference Signal ) of the PUSCH based on the codebook is associated with two spatial relationships configured in a certain SRS resource, and the current NR (New Radio) system prescribes that the physical layer DCI selects the SRS resource, and the terminal cannot dynamically switch between a certain spatial relationship and a plurality of spatial relationships of the SRS, and cannot dynamically select a certain spatial relationship from the plurality of spatial relationships to transmit the PUSCH.

Based on the PUSCH of the non-codebook, configuration of an SRS resource set is currently supported, the resource set configures a spatial relationship (such as CSI-RS), and the spatial relationship of all resources in the resource set is unique.

In summary, in the current system, the base station configures beam information of SRS resources of the terminal or beam information of SRS resource sets through higher layer signaling, dynamically schedules the terminal to select SRS resources through a physical layer DCI command, and the beam information is fixed.

Disclosure of Invention

The embodiment of the invention aims to provide a method and a device for transmitting and receiving a PUSCH, a terminal and network side equipment, so as to solve the problem that the terminal cannot be controlled to dynamically select beam information to transmit data in the prior art.

In order to achieve the above objective, an embodiment of the present invention provides a method for transmitting a PUSCH, applied to a terminal, including:

Determining that at least two beam information are configured or activated by a higher layer;

receiving a first command, wherein the first command comprises switching indication information; the switching indication information is used for indicating the current beam information used by the terminal in the at least two beam information;

and at the corresponding transmission time, carrying out uplink data transmission by utilizing the beam information indicated by the switching indication information.

Wherein determining that the higher layer configures or activates at least two beam information comprises:

acquiring first resource configuration information, wherein the first resource configuration information comprises: at least two sounding reference signal, SRS, resources and one beam information associated with each SRS resource;

or,

obtaining second resource configuration information, wherein the second resource configuration information comprises: one SRS resource and at least two beam information associated with the SRS resource;

or,

obtaining spatial relationship configuration information, wherein the spatial relationship configuration information comprises: at least two beam information;

or,

obtaining third resource configuration information, wherein the third resource configuration information comprises: one SRS resource set and at least two beam information associated with the SRS resource set;

or,

Acquiring fourth resource configuration information, wherein the fourth resource configuration information comprises: at least two SRS resource sets, and one beam information associated with each SRS resource set.

Wherein, in case of acquiring the first resource configuration information,

and the switching indication information in the first command is used for indicating the index of the SRS resource, and the beam information currently used by the terminal is indicated through the index of the SRS resource.

Wherein, in case of acquiring the second resource configuration information,

the switch indication information in the first command is used for indicating the index of the beam information currently used by the terminal.

Wherein, under the condition that the spatial relationship configuration information is acquired,

and the switching indication information in the first command is a transmission pattern, and the current beam information used by the terminal is respectively indicated by different values of the transmission pattern.

Wherein, when the third resource configuration information is acquired, the beam information includes: associating a channel state information reference signal (CSI-RS);

and the switching indication information in the first command is used for indicating the index of the associated CSI-RS currently used by the terminal.

Wherein, in case of acquiring the fourth resource configuration information,

And the switching indication information in the first command is used for indicating the index of the SRS resource set, and the beam information currently used by the terminal is indicated through the index of the SRS resource set.

Wherein, when the first resource configuration information is obtained, the first command further includes: at least two SRS resource indication domains corresponding to the SRS resources respectively;

or, in the case that the third resource configuration information or the fourth resource configuration information is acquired, and the SRS resource set includes at least two SRS resources,

the first command further includes: and the first indication domains are respectively corresponding to the SRS resource sets and are used for indicating SRS resources used for uplink data transmission in the corresponding SRS resource sets.

If the data after the channel coding at different transmission occasions are the same, the first command further includes at least one of the following:

at least two transmission precoding indication (TPMI) fields corresponding to the respective beam information;

one frequency domain resource indicates an FDRA field applicable to the at least two beam information;

one time domain resource indicates a TDRA field; the TDRA field is applicable to the at least two beam information;

A modulation coding level (MCS) field; the MCS field is applicable to the at least two beam information.

If the data after the channel coding at different transmission occasions are different, or the data before the channel coding at different transmission occasions are different, the first command further includes at least one of the following:

at least two frequency domain resource indication FDRA fields corresponding to each beam information respectively;

at least two time domain resource indication TDRA fields corresponding to the respective beam information;

at least two modulation and coding level MCS fields corresponding to the respective beam information.

The embodiment of the invention also provides a data transmission method which is applied to the network side equipment and comprises the following steps:

configuring or activating at least two beam information by a higher layer;

a first command is sent to a terminal, wherein the first command comprises switching indication information; the switching indication information is used for indicating the current beam information used by the terminal in the at least two beam information;

and at the corresponding transmission time, carrying out data reception by utilizing the beam information indicated by the switching indication information.

Wherein configuring or activating at least two beam information by a higher layer includes:

Transmitting first resource configuration information, wherein the first resource configuration information comprises: at least two sounding reference signal, SRS, resources and one beam information associated with each SRS resource;

or,

transmitting second resource configuration information, wherein the second resource configuration information comprises: one SRS resource and at least two beam information associated with the SRS resource;

or,

transmitting spatial relationship configuration information, wherein the spatial relationship configuration information comprises: at least two beam information;

or,

transmitting third resource configuration information, wherein the third resource configuration information comprises: one SRS resource set and at least two beam information associated with the SRS resource set;

or,

transmitting fourth resource configuration information, wherein the fourth resource configuration information comprises: at least two SRS resource sets, and one beam information associated with each SRS resource set.

Wherein, in case of transmitting the first resource configuration information,

Wherein, in case of transmitting the second resource configuration information,

Wherein, in case of transmitting the spatial relationship configuration information,

Wherein, in the case of transmitting the third resource configuration information, the beam information includes: associating a channel state information reference signal (CSI-RS);

Wherein, in case of transmitting the fourth resource configuration information,

Wherein, when sending the first resource configuration information, the first command further includes: at least two SRS resource indication domains corresponding to the SRS resources respectively;

or, in the case that the third or fourth resource configuration information is transmitted and the set of SRS resources includes at least two SRS resources,

The embodiment of the invention also provides a terminal, which comprises a memory, a transceiver and a processor:

a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:

Wherein the processor is further configured to read the computer program in the memory and perform the following operations:

or,

Or,

or,

Wherein, in case of acquiring the first resource configuration information,

Wherein, in case of acquiring the second resource configuration information,

Wherein, in case of acquiring the fourth resource configuration information,

The embodiment of the invention also provides a data transmission device, which is applied to the terminal and comprises:

a relation determining module, configured to determine that at least two beam information are configured or activated by a higher layer;

The first receiving module is used for receiving a first command, wherein the first command comprises switching indication information; the switching indication information is used for indicating the current beam information used by the terminal in the at least two beam information;

and the transmission module is used for carrying out uplink data transmission by utilizing the beam information indicated by the switching indication information on the corresponding transmission time.

The embodiment of the invention also provides network side equipment, which comprises a memory, a transceiver and a processor:

configuring or activating at least two beam information by a higher layer;

or,

Wherein, in case of transmitting the first resource configuration information,

Wherein, in case of transmitting the second resource configuration information,

Wherein, in case of transmitting the fourth resource configuration information,

The embodiment of the invention also provides a data transmission device, which is applied to the network side equipment and comprises:

a configuration activation module for configuring or activating at least two beam information through a higher layer;

the terminal comprises a sending module, a receiving module and a receiving module, wherein the sending module is used for sending a first command to the terminal, and the first command comprises switching indication information; the switching indication information is used for indicating the current beam information used by the terminal in the at least two beam information;

and the second receiving module is used for receiving data by utilizing the beam information indicated by the switching indication information on the corresponding transmission time.

Embodiments of the present invention also provide a processor-readable storage medium storing a computer program for causing the processor to perform the method as described above.

The technical scheme of the invention has at least the following beneficial effects:

in the data transmission method, the device, the terminal and the network side equipment provided by the embodiment of the invention, under the condition that at least two beam information are configured or activated at a high layer, the network side equipment can control the terminal to dynamically select or dynamically switch among a plurality of beam information through a first command, the terminal can select a corresponding beam to transmit data to a corresponding TRP, and one or a plurality of TRPs are used for independently or jointly receiving the data, so that the data transmission method, the device, the terminal and the network side equipment adapt to continuously changing channel conditions, can improve the quality of an uplink and improve the uplink reliability or throughput.

Drawings

Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present invention are applicable;

fig. 2 shows one of the flowcharts of the steps of the data transmission method according to the embodiment of the present invention;

FIG. 3 is a second schematic diagram illustrating a data transmission method according to an embodiment of the invention;

fig. 4 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

fig. 5 shows one of schematic structural diagrams of a data transmission device according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a network side device according to an embodiment of the present invention;

fig. 7 shows a second schematic structural diagram of a data transmission device according to an embodiment of the invention.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved more apparent, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.

Fig. 1 shows a block diagram of a wireless communication system to which the present transmission embodiment is applicable. The wireless communication system includes a terminal device 11 and a network device 12. The terminal device 11 may also be referred to as a terminal or User Equipment (UE). Note that, the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may be a base station or a core network, and it should be noted that, in the embodiment of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

In the embodiment of the invention, the term "and/or" describes the association relation of the association objects, which means that three relations can exist, for example, a and/or B can be expressed as follows: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

The term "plurality" in the embodiments of the present application means two or more, and other adjectives are similar thereto.

The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The technical scheme provided by the embodiment of the application can be suitable for various systems, in particular to a 5G system. For example, suitable systems may be global system for mobile communications (Global System of Mobile communication, GSM), code division multiple access (Code Division Multiple Access, CDMA), wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) universal packet Radio service (General Packet Radio Service, GPRS), long term evolution (Long Term Evolution, LTE), LTE frequency division duplex (Frequency Division Duplex, FDD), LTE time division duplex (Time Division Duplex, TDD), long term evolution-advanced (Long Term Evolution Advanced, LTE-a), universal mobile system (Universal Mobile Telecommunication System, UMTS), worldwide interoperability for microwave access (Worldwide interoperability for Microwave Access, wiMAX), 5G New air interface (New Radio, NR), and the like. Terminal devices and network devices are included in these various systems. Core network parts such as evolved packet system (Evloved Packet System, EPS), 5G system (5 GS) etc. may also be included in the system.

The terminal device according to the embodiments of the present application may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing device connected to a wireless modem, etc. The names of the terminal devices may also be different in different systems, for example in a 5G system, the terminal devices may be referred to as User Equipment (UE). The wireless terminal device may communicate with one or more Core Networks (CNs) via a radio access Network (Radio Access Network, RAN), which may be mobile terminal devices such as mobile phones (or "cellular" phones) and computers with mobile terminal devices, e.g., portable, pocket, hand-held, computer-built-in or vehicle-mounted mobile devices that exchange voice and/or data with the radio access Network. Such as personal communication services (Personal Communication Service, PCS) phones, cordless phones, session initiation protocol (Session Initiated Protocol, SIP) phones, wireless local loop (Wireless Local Loop, WLL) stations, personal digital assistants (Personal Digital Assistant, PDAs), and the like. The wireless terminal device may also be referred to as a system, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile), remote station (remote station), access point (access point), remote terminal device (remote terminal), access terminal device (access terminal), user terminal device (user terminal), user agent (user agent), user equipment (user device), and the embodiments of the present application are not limited.

The network device according to the embodiment of the present application may be a base station, where the base station may include a plurality of cells for providing services for a terminal. A base station may also be called an access point or may be a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminal devices, or other names, depending on the particular application. The network device may be operable to exchange received air frames with internet protocol (Internet Protocol, IP) packets as a router between the wireless terminal device and the rest of the access network, which may include an Internet Protocol (IP) communication network. The network device may also coordinate attribute management for the air interface. For example, the network device according to the embodiments of the present application may be a network device (Base Transceiver Station, BTS) in a global system for mobile communications (Global System for Mobile communications, GSM) or code division multiple access (Code Division Multiple Access, CDMA), a network device (NodeB) in a wideband code division multiple access (Wide-band Code Division Multiple Access, WCDMA), an evolved network device (evolutional Node B, eNB or e-NodeB) in a long term evolution (Long Term Evolution, LTE) system, a 5G base station (gNB) in a 5G network architecture (next generation system), a home evolved base station (Home evolved Node B, heNB), a relay node (relay node), a home base station (femto), a pico base station (pico), and the like. In some network structures, the network device may include a Centralized Unit (CU) node and a Distributed Unit (DU) node, which may also be geographically separated.

Multiple-input Multiple-output (Multi Input Multi Output, MIMO) transmissions may each be made between a network device and a terminal device using one or more antennas, and the MIMO transmissions may be Single User MIMO (SU-MIMO) or Multiple User MIMO (MU-MIMO). The MIMO transmission may be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, or may be diversity transmission, precoding transmission, beamforming transmission, or the like, depending on the form and number of the root antenna combinations.

As shown in fig. 2, an embodiment of the present invention provides a data transmission method, which is applied to a terminal, and includes:

step 201, determining that at least two beam information are configured or activated by a higher layer;

step 202, receiving a first command, wherein the first command comprises switching indication information; the switching indication information is used for indicating the current beam information used by the terminal in the at least two beam information;

at step 203, uplink data transmission is performed at the corresponding transmission timing (transmission occasion) using the beam information indicated by the handover indication information. For example, transmission of a physical uplink control channel PUCCH, transmission of a physical uplink shared channel PUSCH, and the like are not particularly limited herein.

The beam information mentioned in the embodiment of the present invention may also be referred to as: spatial relationship (spatial relation) information, spatial filter (spatial filter) information, transmission configuration indication state (TCI state) information, quasi co-location (QCL) information, QCL parameters, or the like. The downstream beam information may be generally represented using TCI state information or QCL information, among others. Upstream beam information may generally be represented using spatial relationship information. The common beam information, such as the uplink channel and the downlink channel, may use the same common beam information, and the spatial correlation information or the TCI state information are not specifically limited herein.

According to the embodiment of the invention, the terminal can dynamically select and switch in single or multiple spatial relations by decoupling the spatial relation of the SRS resource configuration or decoupling the spatial relation (such as association CSI-RS) of the SRS resource set configuration and indicating by the first command.

For example, the terminal may dynamically select or switch among a single spatial relationship or multiple spatial relationships according to the spatial relationship indicated by the switching indication information, so as to be able to select an optimal transmission beam or beam group corresponding to different spatial relationships to transmit PUSCH.

For convenience of description, the following will specifically describe the beam information as an example of spatial relationship.

As an alternative embodiment, step 201 includes:

or,

For example, the first resource configuration information, the second resource configuration information, and the spatial relationship configuration information are information that the network side device is configured based on a codebook PUSCH or a non-codebook PUSCH; for another example, the third resource configuration information and the fourth resource configuration information are information that the network side device is configured based on a non-codebook PUSCH.

For the non-codebook PUSCH, the terminal does not expect the base station to simultaneously configure "the first resource configuration information, the second resource configuration information, or the spatial relationship configuration information" and "the third resource configuration information, or the fourth resource configuration information".

As an optional embodiment, in a case that the first resource configuration information is acquired, the handover indication information in the first command is used to indicate an index of the SRS resource, and the beam information currently used by the terminal is indicated through the index of the SRS resource. The first command further includes: at least two SRS resource indication domains respectively corresponding to the SRS resources.

For example, the handover indication information includes 2 bits, which when "00" indicates index 0 of the SRS resource; when it is "01", index 1 indicating SRS resource; when it is "10", index 0 and index 1 of SRS resource are indicated; "11" may be used as a reserved field or a reserved field.

For example, based on the codebook PUSCH, the base station may configure a plurality of SRS resources for the terminal through a high-level command, where each SRS resource is associated with a spatial relationship, and the base station may instruct the terminal through the handover indication information to transmit the PUSCH on different transmission occasions by using beams corresponding to different spatial relationships.

Specifically, a handover indication field (i.e., handover indication information) may be added to the DCI (i.e., the first command), where each segment of handover indication field indicates a spatial relationship corresponding to the used SRS resource. That is, the index of the SRS resource may be indicated by the handover indication information, and the beam information currently used by the terminal may be indicated by the index of the SRS resource.

For example, two SRS resources may be configured, the length of the handover indication field is 2, and each handover indication field and the SRS resource index indicated by the handover indication field and the corresponding spatial relationship are shown in the following table:

as another example, the SRI (SRS resource indicator, SRS resource indication) field may be extended, i.e.And +.>bit, where N _{SRS_0} And N _{SRS_1} The number of SRS resources among the SRS resource set No. 0 and the SRS resource set No. 1 of the higher layer configuration are respectively represented.

In addition, if the channel codes of different transmission occasions are the same, the transmission precoding indication TPMI field may be further extended in the DCI command to indicate the precoding and the number of layers based on the above steps of the present embodiment. The network side equipment (i.e. the base station) transmits the PUSCH through the DCI scheduling terminal, the size of the expansion information field changes along with the number of the spatial relationships, and other expansion fields can only keep the command information of the current scheduling PUSCH.

That is, if the PUSCH data after channel coding at different transmission occasions are the same, the first command further includes at least one of the following: at least two transmission precoding indication (TPMI) fields corresponding to the respective beam information; one frequency domain resource indicates an FDRA field applicable to the at least two beam information; one time domain resource indicates a TDRA field; the TDRA field is applicable to the at least two beam information; a modulation coding level (MCS) field; the MCS field is applicable to the at least two beam information.

If the data before channel coding at different transmission occasions are different, or the data after channel coding at different transmission occasions are different, that is, the layer number, the modulation order and the time-frequency resource may be different, the frequency domain resource indication FDRA field, the time domain resource indication TDRA field and the modulation coding level MCS field need to be extended in addition to the first command extension precoding and the layer number field (that is, the TPMI field).

That is, if the data after the channel coding at different transmission occasions are different, or the data before the channel coding at different transmission occasions are different, the first command further includes at least one of the following: at least two transmission precoding indication (TPMI) fields corresponding to the respective beam information; at least two frequency domain resource indication FDRA fields corresponding to each beam information respectively; at least two time domain resource indication TDRA fields corresponding to the respective beam information; at least two modulation and coding level MCS fields corresponding to the respective beam information.

Specifically, for the expansion of SRI and TPMI fields, the embodiment of the present invention provides two basic modes shown in the following table, where the first expansion mode is:

and the expansion mode II is as follows:

as an optional embodiment, in case that the second resource configuration information is acquired, the handover indication information in the first command is used to indicate an index of beam information currently used by the terminal.

For example, the handover indication information includes 2 bits, which indicates the first spatial relationship when it is "00"; when it is "01", a second spatial relationship is indicated; where it is "10", the first spatial relationship and the second spatial relationship are indicated; "11" may be used as a reserved field or a reserved field.

For example, based on codebook PUSCH, a base station may configure one SRS resource through a high-level command, where the SRS resource configures two or more spatial relationships; each spatial relationship contains one RS (Reference Signal), such as CSI-RS.

Specifically, the SRI may be indicated in the DCI, and the spatial relationship selection domain corresponding to the corresponding SRS resource is added. For example, an SRS resource is configured with two spatial relationships, each spatial relationship includes an RS, TPMI is extended, and the switching indication field and the corresponding spatial relationship are shown in the following table:

Handover indication field	Spatial relationship (SRS Spatial Relation)
		00	First spatial relationship
01	Second spatial relationship
		10	First spatial relationship and second spatial relationship
11	Reservation of

If the data after the channel coding at different transmission occasions are the same, the first command further includes at least one of the following: at least two transmission precoding indication (TPMI) fields corresponding to the respective beam information; one frequency domain resource indicates an FDRA field applicable to the at least two beam information; one time domain resource indicates a TDRA field; the TDRA field is applicable to the at least two beam information; a modulation coding level (MCS) field; the MCS field is applicable to the at least two beam information.

If the data after the channel coding at different transmission occasions are different, or the data before the channel coding at different transmission occasions are different, the first command further comprises at least one of the following: at least two transmission precoding indication (TPMI) fields corresponding to the respective beam information; at least two frequency domain resource indication FDRA fields corresponding to each beam information respectively; at least two time domain resource indication TDRA fields corresponding to the respective beam information; at least two modulation and coding level MCS fields corresponding to the respective beam information.

In addition, in this embodiment, the manner of expanding other DCI fields is similar to that in the foregoing embodiment, and will not be described here again.

As an optional embodiment, in the case that the spatial relationship configuration information is obtained, the switching indication information in the first command is a transmission pattern, and the beam information currently used by the terminal is respectively indicated by different values of the transmission pattern.

For example, based on the codebook PUSCH, different transmission patterns (i.e., the transmission patterns) may be predefined or configured by a higher layer, a transmission pattern may be dynamically selected in DCI, and the higher layer configuration or the activated spatial relationship may be combined to dynamically instruct the terminal to transmit the PUSCH using one or several beams.

For example, the base station configures or activates two spatial relationships through a higher layer, and defines 8 valid transmission patterns in total, wherein transmission patterns No. 0 and No. 7 indicate that the terminal transmits PUSCH in a single or repeated manner in the time domain based on only a certain spatial relationship.

Specifically, an indication field of a transmission pattern may be added to the physical layer DCI, for example, 3 bits may correspondingly define 8 transmission patterns. Wherein 000 indicates a transmission pattern No. 0, i.e. indicates that the terminal selects a first spatial relationship; 111 indicates transmission pattern number 7, i.e. the terminal selects the second spatial relationship dynamically. For example, the transmission pattern, the pattern number and the corresponding spatial relationship are shown in the following table:

In addition, in this embodiment, the manner of extending other DCI fields except for the TPMI field is similar to that in the foregoing embodiment, and will not be described here again.

As an optional embodiment, in case that the third resource configuration information is acquired, the beam information includes: associating a channel state information reference signal (CSI-RS); and the switching indication information in the first command is used for indicating the index of the associated CSI-RS currently used by the terminal. In the case that the third resource configuration information is obtained and the SRS resource set includes at least two SRS resources, the first command further includes: and the first indication domains are respectively corresponding to the SRS resource sets and are used for indicating SRS resources used for uplink data transmission in the corresponding SRS resource sets.

In the prior art, only one SRS resource set is supported to configure one CSI-RS resource for non-codebook PUSCH transmission. In the embodiment of the invention, based on the non-codebook PUSCH, one SRS resource set can be configured at a high layer, and the resource set can be configured with two or more associated CSI-RSs or spatial relations.

Specifically, if the data of the scheduled terminal after the channel coding at different transmission occasions are the same, the time-frequency resource scheduling, the code rate and the Rank (Rank) of the PUSCH are the same, the SRI field may be extended, and an indication spatial relationship, such as an NZP CSI-RS resource switching indication field, may be added to the SRS request of the DCI.

That is, if the data after channel coding at different transmission occasions are the same, the first command further includes at least one of the following: one frequency domain resource indicates an FDRA field applicable to the at least two beam information; one time domain resource indicates a TDRA field; the TDRA field is applicable to the at least two beam information; a modulation coding level (MCS) field; the MCS field is applicable to the at least two beam information.

For example, taking two CSI-RS as an example, the switching indication field and the CSI-RS resources indicated by the switching indication field are shown in the following table:

handover indication field	CSI-RS in SRS resource set
		00	Low sequence number CSI-RS
01	High sequence number CSI-RS
		10	Low sequence number CSI-RS and high sequence number CSI-RS
11	Reservation of

If the scheduling terminal is different before the channel coding of different transmission occasions or different after the channel coding of different transmission occasions, and the time-frequency resource scheduling, the code rate and the rank of the PUSCH are different, the frequency domain resource indication FDRA field, the time domain resource indication TDRA field and the modulation coding MCS field are further extended, and the extension manner is similar to that in the foregoing embodiments and will not be repeated here.

That is, if the data after the channel coding at different transmission occasions are different, or the data before the channel coding at different transmission occasions are different, the first command further includes at least one of the following: at least two frequency domain resource indication FDRA fields corresponding to each beam information respectively; at least two time domain resource indication TDRA fields corresponding to the respective beam information; at least two modulation and coding level MCS fields corresponding to the respective beam information.

As an optional embodiment, in the case that the fourth resource configuration information is obtained, the handover indication information in the first command is used to indicate an index of the SRS resource set, and the beam information currently used by the terminal is indicated through the index of the SRS resource set. In the case that the fourth resource configuration information is obtained and the SRS resource set includes at least two SRS resources, the first command further includes: and the first indication domains are respectively corresponding to the SRS resource sets and are used for indicating SRS resources used for uplink data transmission in the corresponding SRS resource sets.

For example, based on the non-codebook PUSCH, two or more SRS resource sets are configured by a higher layer, and each SRS resource set configures one associated CSI-RS resource.

Specifically, if the PUSCH data of the scheduled terminal after the channel coding of different transmission occasions are the same, the time-frequency resource scheduling, the code rate and the rank of the PUSCH are the same, a field for indicating the switching of the SRS resource set may be newly added in the DCI, and the SRS resource field for indicating the use in each resource set may be expanded, and the sequence of increasing the sequence number of the SRS resource set is used as the indication sequence, and the length of the field isAnd->And (3) summing; wherein N is _{SRs_0} Representing the number of SRS resources in the first SRS resource set; n (N) _{SRS_1} Representing the number of SRS resources in the second SRS resource set; l (L) _max The PUSCH maximum MIMO (multiple input multiple output) layer number is indicated.

For example, taking a higher layer configuration of two SRS resource sets as an example, the handover indication field and the SRS resource set indicated by the handover indication field are shown in the following table:

handover indication field	SRS resource set
		00	Low sequence number resource set
01	High sequence number resource set
		10	Selecting a low sequence number resource set and a high sequence number resource set
11	Reservation of

If the scheduling terminal is different before the channel coding of different transmission occasions or different after the channel coding of different transmission occasions, the time-frequency resource scheduling, the code rate and the rank are different, the frequency domain resource indication (FDRA) field, the time domain resource indication (TDRA) field and the Modulation Coding (MCS) field are further expanded, and the expansion mode is similar to that in the previous embodiment and is not repeated here.

As an alternative embodiment, after the first resource configuration information is obtained,

or, in the case that the third resource configuration information or the fourth resource configuration information is obtained, and the SRS resource set includes at least two SRS resources, the first command further includes: and the first indication domains are respectively corresponding to the SRS resource sets and are used for indicating SRS resources used for uplink data transmission in the corresponding SRS resource sets.

As an alternative embodiment, the base station may schedule (i.e. instruct) the terminal to dynamically switch (or dynamically select) a certain spatial relationship(s), or a certain resource(s), a certain set of resources(s), on different transmission occasions through a joint field or multiple separate fields in the DCI uplink grant. Wherein, the data after channel coding at different PUSCH transmission occasions can be the same or different; the pre-channel coding data at different PUSCH transmission occasions may be the same or different.

As an optional embodiment, if the channel coded data of different transmission occasions are the same, the first command further includes at least one of the following:

Note that, the codebook PUSCH has a TPMI field, and the non-codebook PUSCH has no TPMI field.

As an optional embodiment, if the data after channel coding at different transmission occasions are different, or the data before channel coding at different transmission occasions are different, the first command further includes at least one of the following:

In summary, in the embodiment of the present invention, the terminal may dynamically select or dynamically switch between single or multiple beam information according to the switch indication information, so as to adapt to the continuously changing channel condition, and improve the quality of the uplink, and improve the reliability or throughput of the uplink.

As shown in fig. 3, an embodiment of the present invention further provides a data transmission method, which is applied to a network side device, including:

step 301, configuring or activating at least two beam information by a higher layer;

Step 302, a first command is sent to a terminal, wherein the first command comprises switching indication information; the switching indication information is used for indicating the current beam information used by the terminal in the at least two beam information;

and step 303, at the corresponding transmission time, performing data reception by using the beam information indicated by the switching indication information.

In the embodiment of the invention, the network side equipment can instruct the terminal to dynamically select or dynamically switch among single or multiple spatial relations by sending the switching instruction information, so as to adapt to the continuously changing channel condition, improve the quality of an uplink and improve the reliability or throughput of the uplink.

As an alternative embodiment, step 301 includes:

Or,

or,

As an optional embodiment, in a case of sending the first resource configuration information, the handover indication information in the first command is used to indicate an index of the SRS resource, and the beam information currently used by the terminal is indicated through the index of the SRS resource. The first command further includes: at least two SRS resource indication domains respectively corresponding to the SRS resources.

That is, if the data after channel coding at different transmission occasions are the same, the first command further includes at least one of the following: at least two transmission precoding indication (TPMI) fields corresponding to the respective beam information; one frequency domain resource indicates an FDRA field applicable to the at least two beam information; one time domain resource indicates a TDRA field; the TDRA field is applicable to the at least two beam information; a modulation coding level (MCS) field; the MCS field is applicable to the at least two beam information.

If the data before channel coding at different transmission occasions are different, or the data after channel coding at different transmission occasions are different, that is, the number of layers, the modulation order and the time-frequency resources may be different, besides the DCI extended precoding and the number of layers field (that is, the TPMI field), an extended frequency domain resource indication FDRA field, a time domain resource indication TDRA field and a modulation coding level MCS field are required.

and the expansion mode II is as follows:

as an alternative embodiment, in the case of sending the second resource configuration information, the handover indication information in the first command is used to indicate an index of beam information currently used by the terminal.

For example, based on codebook PUSCH, a base station may configure one SRS resource through a high-level command, where the SRS resource configures two or more spatial relationships; wherein each spatial relationship contains one RS, such as CSI-RS.

As an alternative embodiment, in case of transmitting the spatial relationship configuration information,

As an alternative embodiment, in the case of transmitting the third resource configuration information, the beam information includes: associating a channel state information reference signal (CSI-RS);

and the switching indication information in the first command is used for indicating the index of the associated CSI-RS currently used by the terminal. In the case that the third resource configuration information is obtained and the SRS resource set includes at least two SRS resources, the first command further includes: and the first indication domains are respectively corresponding to the SRS resource sets and are used for indicating SRS resources used for uplink data transmission in the corresponding SRS resource sets.

Specifically, if the PUSCH data of the scheduling terminal after the channel coding at different transmission occasions are the same, the time-frequency resource scheduling, the code rate and the rank of the PUSCH are the same, the SRI field may be extended, and an indication spatial relationship such as an NZP CSI-RS resource switching indication field may be added to the SRS request of the DCI.

If the data before channel coding of the scheduling terminal at different transmission occasions are different, or the data after channel coding of the different transmission occasions are different, the time-frequency resource scheduling, the code rate and the rank of the PUSCH are different, the frequency domain resource indication FDRA field, the time domain resource indication TDRA field and the modulation coding MCS field are further extended, and the extension manner is similar to that in the foregoing embodiments, and will not be repeated here.

As an optional embodiment, in the case of sending the fourth resource configuration information, the handover indication information in the first command is used to indicate an index of the SRS resource set, and the beam information currently used by the terminal is indicated through the index of the SRS resource set. In the case that the fourth resource configuration information is obtained and the SRS resource set includes at least two SRS resources, the first command further includes: and the first indication domains are respectively corresponding to the SRS resource sets and are used for indicating SRS resources used for uplink data transmission in the corresponding SRS resource sets.

Specifically, if the data of the scheduling terminal after the channel coding at different transmission occasions are the same, the time-frequency resource scheduling, the code rate and the rank of the PUSCH are the same, a field for indicating the switching of the SRS resource set may be newly added in the DCI, and the SRS resource field for indicating the use in each resource set may be expanded, and the sequence of the sequence number of the SRS resource set is taken as the indication sequence, and the length of the field isAnd->And (3) summing; wherein N is _{SRS_0} Representing the number of SRS resources in the first SRS resource set; n (N) _{SRS_1} Representing the number of SRS resources in the second SRS resource set; l (L) _max The PUSCH maximum MIMO (multiple input multiple output) layer number is indicated.

If the data before channel coding of the scheduling terminal at different transmission occasions are different, or the data after channel coding of different transmission occasions are different, the time-frequency resource scheduling, the code rate and the rank are different, the frequency domain resource indication FDRA field, the time domain resource indication TDRA field and the modulation coding MCS field are further extended, and the extension manner is similar to that in the foregoing embodiments and will not be repeated here.

As an optional embodiment, when sending the first resource configuration information, the first command further includes: at least two SRS resource indication domains corresponding to the SRS resources respectively;

Or, in the case that the third resource configuration information or the fourth resource configuration information is sent, and the SRS resource set includes at least two SRS resources, the first command further includes: and the first indication domains are respectively corresponding to the SRS resource sets and are used for indicating SRS resources used for uplink data transmission in the corresponding SRS resource sets.

As an optional embodiment, if the PUSCH data after channel coding at different transmission occasions are the same, the first command further includes at least one of the following:

In summary, in the embodiment of the present invention, the network side device may instruct the terminal to dynamically select or dynamically switch between single or multiple beam information by sending the switch instruction information, so as to adapt to the continuously changing channel condition, and improve the quality of the uplink, and improve the reliability or throughput of the uplink.

As shown in fig. 4, the embodiment of the present invention further provides a terminal, including a memory 420, a transceiver 410, a processor 400, and a user interface 430;

a memory 420 for storing a computer program; a transceiver 410 for transceiving data under the control of the processor; a processor 400 for reading the computer program in the memory 420 and performing the following operations:

As an alternative embodiment, the processor 400 is further configured to read the computer program in the memory and perform the following operations:

or,

Or,

or,

As an alternative embodiment, in case the first resource configuration information is obtained,

As an alternative embodiment, in case the second resource configuration information is obtained,

As an alternative embodiment, in case the spatial relationship configuration information is acquired,

As an optional embodiment, in case that the third resource configuration information is acquired, the beam information includes: associating a channel state information reference signal (CSI-RS);

As an alternative embodiment, in case said fourth resource configuration information is obtained,

As an optional embodiment, after obtaining the first resource configuration information, the first command further includes: at least two SRS resource indication domains corresponding to the SRS resources respectively;

As an alternative embodiment, in FIG. 4, the bus architecture may include any number of interconnected buses and bridges, with the various circuits of the memory, in particular, represented by one or more of processors 410 and memory 420, being linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. Transceiver 400 may be a number of elements, including a transmitter and a receiver, providing a means for communicating with various other apparatus over transmission media, including transmission media including wireless channels, wired channels, optical cables, and the like. The user interface 430 may also be an interface capable of interfacing with an inscribed desired device for a different user device, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 410 is responsible for managing the bus architecture and general processing, and the memory 420 may store data used by the processor 600 in performing operations.

Alternatively, the processor 410 may be a CPU (Central processing Unit), ASIC (Application Specific Integrated Circuit ), FPGA (Field-Programmable Gate Array, field programmable Gate array) or CPLD (Complex Programmable Logic Device ), and the processor may also employ a multicore architecture.

The processor is configured to execute any of the methods provided in the embodiments of the present application by invoking a computer program stored in a memory in accordance with the obtained executable instructions. The processor and the memory may also be physically separate.

According to the embodiment of the invention, the terminal can dynamically select or dynamically switch among single or multiple beam information according to the switching indication information, so that the terminal adapts to the continuously changing channel condition, the quality of an uplink can be improved, and the reliability or throughput of the uplink can be improved.

It should be noted that, if the terminal provided in the embodiment of the present invention is a terminal capable of executing the data transmission method, all embodiments of the data transmission method are applicable to the terminal, and the same or similar beneficial effects can be achieved.

As shown in fig. 5, an embodiment of the present invention further provides a data transmission device, which is applied to a terminal, including:

a relationship determination module 501 configured to determine that at least two beam information are configured or activated by a higher layer;

a first receiving module 502, configured to receive a first command, where the first command includes switching indication information; the switching indication information is used for indicating the current beam information used by the terminal in the at least two beam information;

and a transmission module 503, configured to perform uplink data transmission on the corresponding transmission occasion by using the beam information indicated by the handover indication information.

As an alternative embodiment, the relationship determination module 501 includes:

the first obtaining submodule is used for obtaining first resource configuration information, and the first resource configuration information comprises: at least two sounding reference signal, SRS, resources and one beam information associated with each SRS resource;

or,

a second obtaining sub-module, configured to obtain second resource configuration information, where the second resource configuration information includes: one SRS resource and at least two beam information associated with the SRS resource;

or,

a third obtaining sub-module, configured to obtain spatial relationship configuration information, where the spatial relationship configuration information includes: at least two beam information;

Or,

a fourth obtaining sub-module, configured to obtain third resource configuration information, where the third resource configuration information includes: one SRS resource set and at least two beam information associated with the SRS resource set;

or,

a fifth obtaining sub-module, configured to obtain fourth resource configuration information, where the fourth resource configuration information includes: at least two SRS resource sets, and one beam information associated with each SRS resource set.

It should be noted that, the data transmission device provided in the embodiment of the present invention is a device capable of executing the data transmission method, and all embodiments of the data transmission method are applicable to the device, and the same or similar beneficial effects can be achieved.

It should be noted that, in the embodiment of the present application, the division of the units is schematic, which is merely a logic function division, and other division manners may be implemented in actual practice. In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a processor-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution, in the form of a software product stored in a storage medium, including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to perform all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

As shown in fig. 6, an embodiment of the present invention further provides a network side device, including a memory 620, a transceiver 610, and a processor 600:

a memory 620 for storing a computer program; a transceiver 610 for transceiving data under the control of the processor 600; a processor 600 for reading the computer program in the memory 620 and performing the following operations:

configuring or activating at least two beam information by a higher layer;

As an alternative embodiment, the processor is further configured to read the computer program in the memory and perform the following operations:

or,

Or,

or,

As an alternative embodiment, in case of transmitting the first resource configuration information,

As an alternative embodiment, in case of transmitting the second resource configuration information,

As an alternative embodiment, in case of transmitting said fourth resource configuration information,

At least two modulation coding level (MCS) fields corresponding to the respective beam information;

As an alternative embodiment, in FIG. 6, the bus architecture may include any number of interconnected buses and bridges, with the various circuits of the memory, in particular, represented by one or more of processors 610 and memory 620, being linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. Transceiver 600 may be a number of elements, including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium, including wireless channels, wired channels, optical cables, etc. The processor 610 is responsible for managing the bus architecture and general processing, and the memory 620 may store data used by the processor 610 in performing operations.

The processor 610 may be a Central Processing Unit (CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a Field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Complex Programmable Logic Device, CPLD), and the processor may also employ a multi-core architecture.

According to the embodiment of the invention, the network side equipment can instruct the terminal to dynamically select or dynamically switch among single or multiple spatial relations by sending the switching instruction information, so that the network side equipment adapts to the continuously changing channel condition, the quality of an uplink PUSCH (physical uplink shared channel) can be improved, and the reliability or throughput of the PUSCH can be improved.

It should be noted that, if the network side device provided in the embodiment of the present invention is a network side device capable of executing the PUSCH receiving method, all embodiments of the PUSCH receiving method are applicable to the network side device, and the same or similar beneficial effects can be achieved.

As shown in fig. 7, an embodiment of the present invention further provides a data transmission apparatus, which is applied to a network side device, including:

a configuration activation module 701, configured to configure or activate at least two beam information through a higher layer;

a sending module 702, configured to send a first command to a terminal, where the first command includes handover indication information; the switching indication information is used for indicating the current beam information used by the terminal in the at least two beam information;

And a second receiving module 703, configured to perform data reception on the corresponding transmission opportunity by using the beam information indicated by the handover indication information.

As an alternative embodiment, the configuration activation module 701 includes:

or,

Embodiments of the present invention also provide a processor-readable storage medium that may be any available medium or data storage device that can be accessed by a processor, including, but not limited to, magnetic memory (e.g., floppy disks, hard disks, tapes, magneto-optical disks (MOs), etc.), optical memory (e.g., CD, DVD, BD, HVD, etc.), and semiconductor memory (e.g., ROM, EPROM, EEPROM, nonvolatile memory (NAND FLASH), solid State Disk (SSD)), etc.

It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.

Claims

1. A data transmission method applied to a terminal, comprising:

on the corresponding transmission time, carrying out uplink data transmission by utilizing the beam information indicated by the switching indication information;

acquiring beam configuration information, wherein the beam configuration information comprises: at least two beam information; the beam information indicates status information for transmission configuration.

2. The method of claim 1, wherein determining that at least two beam information are configured or activated by a higher layer comprises:

or,

Or,

or,

3. The method of claim 2, wherein, in the case where the first resource configuration information is obtained,

4. The method of claim 2, wherein, in the case where the second resource configuration information is acquired,

5. The method of claim 2, wherein, in the event that the beam configuration information is obtained,

6. The method according to claim 2, wherein in case the third resource configuration information is acquired, the beam information comprises: associating a channel state information reference signal (CSI-RS);

7. The method of claim 2, wherein, in the case where the fourth resource configuration information is obtained,

8. The method of claim 2, wherein upon obtaining the first resource configuration information, the first command further comprises: at least two SRS resource indication domains corresponding to the SRS resources respectively;

9. The method of claim 1, wherein if the channel coded data at different transmission occasions are the same, the first command further comprises at least one of:

10. The method of claim 1, wherein the first command further comprises at least one of:

11. The data transmission method is applied to the network side equipment and is characterized by comprising the following steps:

configuring or activating at least two beam information by a higher layer;

on the corresponding transmission time, carrying out data receiving by utilizing the beam information indicated by the switching indication information; the configuring or activating at least two beam information by a higher layer includes:

transmitting beam configuration information, the beam configuration information comprising: at least two beam information; the beam information indicates status information for transmission configuration.

12. The method of claim 11, wherein configuring or activating at least two beam information by a higher layer comprises:

or,

Or,

or,

13. The method of claim 12, wherein, in the case of transmitting the first resource configuration information,

14. The method of claim 12, wherein, in the case of transmitting the second resource configuration information,

15. The method of claim 12, wherein, in the case of transmitting the beam configuration information,

16. The method of claim 12, wherein in the case of transmitting the third resource configuration information, the beam information comprises: associating a channel state information reference signal (CSI-RS);

17. The method of claim 12, wherein, in the case of transmitting the fourth resource configuration information,

18. The method of claim 12, wherein, in transmitting the first resource configuration information, the first command further comprises: at least two SRS resource indication domains corresponding to the SRS resources respectively;

19. The method of claim 11, wherein if the channel coded data at different transmission occasions are the same, the first command further comprises at least one of:

20. The method of claim 11, wherein the first command further comprises at least one of:

21. A terminal comprising a memory, a transceiver, and a processor:

the processor is also configured to read the computer program in the memory and perform the following operations:

22. A data transmission device applied to a terminal, comprising:

The transmission module is used for carrying out uplink data transmission by utilizing the beam information indicated by the switching indication information on the corresponding transmission time;

the relationship determination module includes:

a third obtaining sub-module, configured to obtain beam configuration information, where the beam configuration information includes: at least two beam information; the beam information indicates status information for transmission configuration.

23. A network side device, comprising a memory, a transceiver, and a processor:

configuring or activating at least two beam information by a higher layer;

on the corresponding transmission time, carrying out data receiving by utilizing the beam information indicated by the switching indication information;

24. A data transmission apparatus applied to a network side device, comprising:

the second receiving module is used for receiving data by utilizing the beam information indicated by the switching indication information on the corresponding transmission time;

the configuration activation module is used for: transmitting beam configuration information, the beam configuration information comprising: at least two beam information; the beam information indicates status information for transmission configuration.

25. A processor-readable storage medium, characterized in that the processor-readable storage medium stores a computer program for causing the processor to perform the method of any one of claims 1 to 10; alternatively, the computer program is for causing the processor to perform the method of any one of claims 11 to 20.