CN116633509A

CN116633509A - Uplink TCI state determining method, device, terminal and network equipment

Info

Publication number: CN116633509A
Application number: CN202210135594.1A
Authority: CN
Inventors: 杨宇
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2022-02-10
Filing date: 2022-02-14
Publication date: 2023-08-22

Abstract

The application discloses an uplink TCI state determining method, a device, a terminal and network side equipment, belonging to the technical field of communication, wherein the uplink TCI state determining method in the embodiment of the application comprises the following steps: the method comprises the steps that a terminal obtains public beam information indicated by network side equipment, wherein the public beam information comprises N first transmission configuration indication TCI states, the first TCI states are joint TCI states or independent uplink UL TCI states, and N is an integer greater than or equal to 1; and the terminal determines the target TCI state of the target uplink channel according to the target information.

Description

Uplink TCI state determining method, device, terminal and network equipment

Technical Field

The application belongs to the technical field of communication, and particularly relates to a method, a device, a terminal and network side equipment for determining an uplink TCI state.

Background

In a multiple transmit receive point (Multi Transmission Reception Point, mTRP) scenario, the beam information of the various channels is based on a scheme prior to a unified transmission configuration indication (Transmission Configuration Indicator, TCI) status frame (unified TCI framework) in Release 17, R17) of the third generation partnership project (3rd Generation Partnership Project,3GPP), i.e., the network side device needs to use a beam indication scheme corresponding to each channel to indicate its TCI status (state) so that the terminal uses the TCI status indicated by the network side device to determine which beam to use for transmission. Thereby increasing the complexity of the beam pointing procedure for each channel.

Disclosure of Invention

The embodiment of the application provides an uplink TCI state determining method, an uplink TCI state determining device, a terminal and network side equipment, which can simplify the beam indication process of each uplink channel by indicating the common TCI state for different uplink channels.

In a first aspect, a method for determining an uplink TCI state is provided, which is applied to a terminal, and the method includes:

the method comprises the steps that a terminal obtains public beam information indicated by network side equipment, wherein the public beam information comprises N first transmission configuration indication TCI states, the first TCI states are joint TCI states or independent uplink UL TCI states, and N is an integer greater than or equal to 1;

the terminal determines a target TCI state of a target uplink channel according to target information, wherein the target information comprises at least one of the following items:

the number of first TCI states;

the arrangement order or position of the first TCI state;

the corresponding relation between the first TCI state and the first identification information;

the type of the target uplink channel;

a transmission mode of the target uplink channel;

the time domain behavior of the target uplink channel or the time domain behavior of the information carried by the target uplink channel;

the number of the first identification information corresponding to the target uplink channel;

The value of the first identification information corresponding to the target uplink channel;

wherein the first identification information includes at least one of:

control resource set CORESET identification information;

CORESET Chi Biaoshi coresetpoillindex;

transmitting receiving point TRP identification ID information;

channel group identification information;

CORESET group identification information;

physical uplink control channel PUCCH resource group identification information.

In a second aspect, an uplink TCI state determining device is provided and applied to a terminal, where the device includes:

an obtaining module, configured to obtain common beam information indicated by a network side device, where the common beam information includes N first transmission configuration indication TCI states, where the first TCI states are joint TCI states or independent uplink UL TCI states, and N is an integer greater than or equal to 1;

the first determining module is configured to determine a target TCI state of a target uplink channel according to target information, where the target information includes at least one of the following:

the number of first TCI states;

the arrangement order or position of the first TCI state;

the type of the target uplink channel;

a transmission mode of the target uplink channel;

wherein the first identification information includes at least one of:

control resource set CORESET identification information;

CORESET Chi Biaoshi coresetpoillindex;

transmitting receiving point TRP identification ID information;

channel group identification information;

CORESET group identification information;

In a third aspect, a method for determining an uplink TCI state is provided, and the method is applied to a network side device, and includes:

the method comprises the steps that network side equipment indicates public beam information to a terminal, wherein the public beam information comprises N first transmission configuration indication TCI states, the first TCI states are joint TCI states or independent uplink UL TCI states, and N is an integer greater than or equal to 1;

the network side equipment determines a target TCI state of a target uplink channel according to target information, wherein the target information comprises at least one of the following items:

the number of first TCI states;

the arrangement order or position of the first TCI state;

the type of the target uplink channel;

a transmission mode of the target uplink channel;

wherein the first identification information includes at least one of:

control resource set CORESET identification information;

CORESET Chi Biaoshi coresetpoillindex;

transmitting receiving point TRP identification ID information;

channel group identification information;

CORESET group identification information;

In a fourth aspect, an uplink TCI state determining apparatus is provided, which is applied to a network side device, and the apparatus includes:

an indication module, configured to indicate common beam information to a terminal, where the common beam information includes N first transmission configuration indication TCI states, where the first TCI states are joint TCI states or independent uplink UL TCI states, and N is an integer greater than or equal to 1;

the second determining module is configured to determine a target TCI state of a target uplink channel according to target information, where the target information includes at least one of the following:

The number of first TCI states;

the arrangement order or position of the first TCI state;

the type of the target uplink channel;

a transmission mode of the target uplink channel;

wherein the first identification information includes at least one of:

control resource set CORESET identification information;

CORESET Chi Biaoshi coresetpoillindex;

transmitting receiving point TRP identification ID information;

channel group identification information;

CORESET group identification information;

In a fifth aspect, there is provided a terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the first aspect.

A sixth aspect provides a terminal, including a processor and a communication interface, where the communication interface is configured to obtain common beam information indicated by a network side device, where the common beam information includes N first transmission configuration indication TCI states, where the first TCI states are joint TCI states or independent uplink UL TCI states, and N is an integer greater than or equal to 1; the processor is configured to determine a target TCI state of a target uplink channel according to target information, where the target information includes at least one of:

The number of first TCI states;

the arrangement order or position of the first TCI state;

the type of the target uplink channel;

a transmission mode of the target uplink channel;

wherein the first identification information includes at least one of:

control resource set CORESET identification information;

CORESET Chi Biaoshi coresetpoillindex;

transmitting receiving point TRP identification ID information;

channel group identification information;

CORESET group identification information;

In a seventh aspect, a network side device is provided, comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method according to the third aspect.

An eighth aspect provides a network side device, including a processor and a communication interface, where the communication interface is configured to indicate common beam information to a terminal, where the common beam information includes N first transmission configuration indication TCI states, the first TCI states are joint TCI states or independent uplink UL TCI states, and N is an integer greater than or equal to 1; the processor is configured to determine a target TCI state of a target uplink channel according to target information, where the target information includes at least one of:

The number of first TCI states;

the arrangement order or position of the first TCI state;

the type of the target uplink channel;

a transmission mode of the target uplink channel;

wherein the first identification information includes at least one of:

control resource set CORESET identification information;

CORESET Chi Biaoshi coresetpoillindex;

transmitting receiving point TRP identification ID information;

channel group identification information;

CORESET group identification information;

In a ninth aspect, there is provided a wireless communication system comprising: a terminal and a network side device, where the terminal may be configured to perform the steps of the uplink TCI state determining method according to the first aspect, and the network side device may be configured to perform the steps of the uplink TCI state determining method according to the third aspect.

In a tenth aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor, performs the steps of the method according to the first aspect, or performs the steps of the method according to the third aspect.

In an eleventh aspect, there is provided a chip comprising a processor and a communication interface, the communication interface and the processor being coupled, the processor being for running a program or instructions to implement the method according to the first aspect or to implement the method according to the third aspect.

In a twelfth aspect, there is provided a computer program/program product stored in a storage medium, the computer program/program product being executed by at least one processor to implement the steps of the uplink TCI state determining method according to the first aspect or to implement the steps of the uplink TCI state determining method according to the third aspect.

In the embodiment of the application, a terminal acquires public beam information indicated by network side equipment and available for sharing or using each uplink channel; even in the multi-TRP scenario, the terminal can determine the target TCI status of various uplink channels according to the target information. The method and the device can be applied to a unified TCI state indication framework in a multi-TRP scene without indicating the target TCI state of each uplink channel according to the TCI state indication flow corresponding to each channel, thereby simplifying the complexity of TCI state indication or beam indication of each uplink channel.

Drawings

Fig. 1 is a schematic diagram of a wireless communication system to which embodiments of the present application can be applied;

fig. 2 is a flowchart of a method for determining an uplink TCI state according to an embodiment of the present application;

fig. 3 is a flowchart of another uplink TCI state determining method according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of an uplink TCI state determining device according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of another uplink TCI state determining apparatus according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 7 is a schematic diagram of a hardware structure of a terminal according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a network side device according to an embodiment of the present application.

Detailed Description

The technical solutions of the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the application, fall within the scope of protection of the application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the "first" and "second" distinguishing between objects generally are not limited in number to the extent that the first object may, for example, be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.

It should be noted that the techniques described in the embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE-Advanced (LTE-a) systems, but may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access(Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single-carrier frequency division multiple access (SC-carrier Frequency Division Multiple Access, SC-FDMA), and other systems. The terms "system" and "network" in embodiments of the application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. The following description describes a New air interface (NR) system for purposes of example and uses NR terminology in much of the description that follows, but these techniques are also applicable to applications other than NR system applications, such as generation 6 (6) ^th Generation, 6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which an embodiment of the present application is applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may be a mobile phone, a tablet (Tablet Personal Computer), a Laptop (Laptop Computer) or a terminal-side Device called a notebook, a personal digital assistant (Personal Digital Assistant, PDA), a palm top, a netbook, an ultra-mobile personal Computer (ultra-mobile personal Computer, UMPC), a mobile internet appliance (Mobile Internet Device, MID), an augmented reality (augmented reality, AR)/Virtual Reality (VR) Device, a robot, a Wearable Device (weather Device), a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), a smart home (home Device with a wireless communication function, such as a refrigerator, a television, a washing machine, or a furniture), a game machine, a personal Computer (personal Computer, PC), a teller machine, or a self-service machine, and the Wearable Device includes: intelligent wrist-watch, intelligent bracelet, intelligent earphone, intelligent glasses, intelligent ornament (intelligent bracelet, intelligent ring, intelligent necklace, intelligent anklet, intelligent foot chain etc.), intelligent wrist strap, intelligent clothing etc.. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network-side device 12 may comprise an access network device or a core network device, wherein the access network device 12 may also be referred to as a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function or a radio access network element. Access network device 12 may include a base station, a WLAN access point, a WiFi node, or the like, which may be referred to as a node B, an evolved node B (eNB), an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a home node B, a home evolved node B, a transmission and reception point (Transmitting Receiving Point, TRP), or some other suitable terminology in the art, and the base station is not limited to a particular technical vocabulary so long as the same technical effect is achieved, and it should be noted that in the embodiment of the present application, only a base station in the NR system is described as an example, and the specific type of the base station is not limited.

The uplink TCI state determining method, the uplink TCI state determining device, the terminal and the network side device provided by the embodiment of the application are described in detail below through some embodiments and application scenarios thereof with reference to the accompanying drawings.

In wireless communication, after beam measurement and beam reporting, a network side device may perform beam indication on a channel or a reference signal of a downlink and an uplink, so as to establish a beam link between the network side device and a User Equipment (UE), so as to implement transmission of the channel or the reference signal.

It should be noted that, in the embodiment of the present application, the beam information may include at least one of the following: identification information of beams, spatial relation (spatial relation) information, spatial transmit filter (spatial domain transmission filter) information, spatial receive filter (spatial domain reception filter) information, spatial filter (spatial filter) information, transmission configuration indication status (TCI status) information, quasi co-location (Quasi-registration QCL) information, QCL parameters. Wherein the downstream beam information may be generally represented using TCI state information or QCL information. Upstream beam information may typically be represented using TCI state information or spatial relationship information.

In the related art, each channel or reference signal has a respective beam pointing mechanism:

1) Beam indication for physical downlink control channel (Physical Downlink Control Channel, PDCCH): the network side device configures K TCI states for each Control resource set (Control resource set, core) using radio resource Control (Radio Resource Control, RRC) signaling, when K >1, 1 TCI state is indicated or activated by a Control Element (CE) of the medium access Control (Medium Access Control, MAC) when k=1, no additional MAC CE signaling is required. The UE listens to the PDCCH using the same QCL, i.e., the same TCI state, for all Search Spaces (SSs) within the CORESET. The reference signal (reference signal) in the TCI state, e.g., periodic channel state information reference signal (Channel State Information Reference Signal, CSI-RS) resource (resource), semi-persistent CSI-RS resource, synchronization signal block (Synchronization Signal Block, SSB), etc.), and demodulation reference signal (Demodulation Reference Signal, DMRS) ports of the UE-specific PDCCH are spatial QCL. The UE can learn which reception beam to use to receive the PDCCH according to the TCI state.

2) Beam indication for physical downlink shared channel (Physical Downlink Shared Channel, PDSCH): the network side device configures M TCI states through RRC signaling, activates a TCI state corresponding to at most 8 code points (codepoints) using MAC CE signaling, and then informs the TCI state through a 3-bit TCI field (field) of downlink control information (Downlink Control Information, DCI), and a reference signal in the TCI state is QCL with a DMRS port of a PDSCH to be scheduled. The UE can know which reception beam to use to receive PDSCH according to the TCI state.

3) Beam indication for CSI-RS: when the CSI-RS type is periodical CSI-RS, the network side equipment configures QCL information for the CSI-RS resource through RRC signaling. When the CSI-RS type is semi-persistent CSI-RS, the network side equipment activates one CSI-RS resource from the CSI-RS resource set configured by RRC through MAC CE signaling, and indicates QCL information of the CSI-RS resource. When the CSI-RS type is aperiodic CSI-RS, the network side equipment configures QCL for the CSI-RS resource through RRC signaling, and uses DCI to trigger the CSI-RS.

4) Beam indication for physical uplink control channel (Physical Uplink Control Channel, PUCCH): the network side device configures spatial relationship information (spatial relation information) for each PUCCH resource using RRC signaling pass parameter "PUCCH-spacialrelation info", and when spatial relation information configured for PUCCH resource contains a plurality, indicates or activates one of spatial relation information using MAC CE. When spatial relation information configured for PUCCH resource contains only 1, no additional MAC CE signaling is required.

5) Beam indication for physical uplink shared channel (Physical Uplink Shared Channel, PUSCH): the spatial relation information of PUSCH is that when DCI carried by PDCCH schedules PUSCH, each SRI code of sounding reference signal (Sounding Reference Signal, SRS) resource indication (SRS resource indicator, SRI) field in DCI indicates one SRI, which is used to indicate spatial relation information of PUSCH.

6) Beam indication for SRS: when the SRS type is periodic SRS, the network side device configures spatial relation information for SRS resource through RRC signaling. When the SRS type is semi-persistent SRS, the network side device activates spatial relation information through MAC CE signaling. When the SRS type is an aperiodic SRS, the network side device configures spatial relation information for SRS resource through RRC signaling and may be updated through MAC CE signaling.

As can be seen from the above, in the related art, the beam indication procedure corresponding to the channel or reference signal resource needs to be used to indicate the target TCI state based on the different types of channel or reference signal resource, so that the beam indication procedure is complicated.

To simplify the beam pointing procedure, a new TCI framework (framework) is introduced in the published version (Release) 17 of the third generation partnership project (3rd Generation Partnership Project,3GPP) of 5G NR, which framework may be referred to as a unified TCI framework (unified TCI framework), i.e. the same beam (beam) pointed by the network side device using MAC CEs and/or DCIs may be used for transmission of multiple channels, which beam may also be referred to as a common beam. The beam indication procedure of unified TCI framework is as follows:

The network side device configures a TCI state pool (pool) through RRC signaling and activates 1 or more TCI states in the TCI state pool using MAC CE signaling. When the MAC CE activates the TCI state corresponding to 1 codepoint, the activated TCI state is directly applied to the target signal. When the MAC CE activates TCI states corresponding to the plurality of codepoints, respectively, the network side device re-uses TCI field in the DCI to indicate one codepoint, and the TCI states corresponding to the 1 codepoint are applied to the target signal.

The TCI state in unified TCI framework may include two modes, a joint TCI state and a separate TCI state, which are configured by RRC signaling of the network side device. Wherein, for joint TCI states, each codepoint corresponds to 1 TCI state; for the separate TCI state, each codepoint may correspond to one 1 Downlink (DL) TCI state and 1 uplink (Up Link, UL) TCI state, or 1 DL TCI state, or 1 UL TCI state.

For a source (source) RS of TCI state, the following two cases can be distinguished:

1) DL: CSI-RS for beam management (CSI-RS for beam management), CSI-RS for tracking (CSI-RS for tracking);

2) UL: SSB, CSI-RS for beam management, CSI-RS for tracking, SRS (SRS for beam management) for beam management.

For the target signal of TCI state, the following two cases can be classified:

1) DL: UE-specific reception on PDSCH (UE-dedicated reception on PDSCH), UE-specific reception on all CORESET or a subset of CORESET (UE-dedicated reception on all or subset of CORESETs), aperiodic CSI-RS resources for CSI (Aperiodic CSI-RS resources for CSI), aperiodic CSI-RS resources for Beam Management (BM) (Aperiodic CSI-RS resources for BM), DMRS associated with non-UE-specific reception on CORESET, and associated PDSCH (associated with serving cell physical cell identity (Physical Cell Identifier, PCI)) (DMRS(s) associated with non-UE-dedicated reception on CORESET(s) and the associated PDSCH (associated with the serving cell PCI));

2) UL: PUSCH based on dynamic grant/configured grant (grant based PUSCH), all dedicated PUCCH resources (all of dedicated PUCCH resources), aperiodic SRS resources or resource set of BM (Aperiodic SRS resources or resource sets for BM), SRS (SRS for antenna switching) for antenna switching, SRS (SRS for codebook) for codebook, SRS for non-codebook.

In the implementation, when the network side device uses DCI for beam indication, DCI formats (formats) 1_1/1_2 with DL allocation and DCI formats 1_1/1_2 without DL allocation are supported.

Beam indication DCI, the validation time (beam application time) of the TCI state, defined as: the first slot in which the indicated TCI state is applied is at least the Y-th symbol (the first slot to apply the indicated TCI is at least Y symbols after the last symbol of the acknowledgment of the joint or separate DL/UL beam indication) after the last symbol of acknowledgement information indicated by the joint or independent DL/UL beam.

The Path Loss (PLRS) in the power control parameter is configured in or associated with the TCI state by the network side device. Other parameters (such as P0, alpha, close loop index and other parameter configurations) in the power control parameters are related to the TCI state by the network side equipment configuration. For PUCCH, PUSCH, SRS, there is a respective parameter configuration (setting) associated with the TCI state or included in the configuration information for each channel.

For a carrier aggregation (Carrier Aggregation, CA) scenario, the network indicates common QCL information (common QCL information) and/or common UL TX spatial filters (common UL TX spatial filter(s) across a set of configured CC) across a set of configured component carriers (Component Carrier, CC).

It should be noted that although unified TCI framework is proposed in 3gpp r17 above, it is applicable only to single-TRP (srp) scenarios, but is not applicable to multi-TRP (mTRP) transmissions introduced in 3gpp r 16. That is, there is currently no scheme to apply unified TCI framework to the uplink channel in the mTRP scenario. The embodiment of the application provides a scheme for applying unified TCI framework to an uplink channel in a mTRP scene.

Referring to fig. 2, in the uplink TCI state determining method provided in the embodiment of the present application, the execution body may be a terminal, and the terminal may be various terminals 11 as illustrated in fig. 1 or other types of terminals, which are not limited herein. As shown in fig. 2, the uplink TCI state determining method may include the following steps:

step 201, a terminal obtains common beam information indicated by a network side device, where the common beam information includes N first transmission configuration indication TCI states, where the first TCI states are joint TCI states or independent uplink UL TCI states, and N is an integer greater than or equal to 1.

In implementation, the first TCI state may be understood as an active TCI state that may be shared by each uplink channel, reference signal resource, or reference signal resource set in the mTRP scenario, for example: the network side equipment configures TCI state pool through RRC signaling, activates 1 or at least two TCI states corresponding to the codepoints by using MAC CE signaling, and when the number of the codepoints corresponding to the activated TCI states is greater than 1, the network side equipment indicates at least part of the activated TCI states as first TCI states by using TCI field in DCI.

Wherein a multi-TRP scenario may be understood as that one network side device may have at least two TRPs, and different TRPs may comprise the same and/or different beams. During transmission, the network-side device may communicate with the terminal via one or more of the at least two TRPs.

In practice, the number of the first TCI states may be generally 2, but of course, it may be 1 or more than 2, and for convenience of explanation, the following embodiments will generally be exemplified by that the number of the first TCI states is typically 2, which is not specifically limited herein.

Step 202, the terminal determines a target TCI state of a target uplink channel according to the target information.

Wherein the target information includes at least one of:

the number of first TCI states;

the arrangement order or position of the first TCI state;

the type of the target uplink channel (e.g., PUSCH, PUCCH, UL RS resources, etc.);

a transmission mode of the target uplink channel;

wherein the first identification information includes at least one of:

control resource set CORESET identification information;

CORESET Chi Biaoshi coresetpoillindex;

transmitting receiving point TRP identification ID information;

channel group identification information;

CORESET group identification information;

physical uplink control channel (Physical Uplink Control Channel, PUCCH) resource group identification information.

In implementation, the number of first TCI states may be 1 or at least two, for example: in a scenario where a network side device has N TRPs, the network side device may indicate N first TCI states. And the first TCI state may be a joint TCI state or an independent UpLink (UL) TCI state, which is not particularly limited herein.

In addition, the types of the target uplink channel may include: physical uplink control channel (Physical Uplink Control Channel, PUCCH), physical uplink shared channel (Physical Uplink Shared Channel, PUSCH), UL RS resources.

Wherein, PUCCH may be at least one of the following:

any PUCCH;

Presetting physical downlink control channel (Physical Downlink Control Channel, PDCCH) scheduling or associated PUCCH;

a terminal-specific (UE-decoded) PUCCH;

and/or the number of the groups of groups,

the PUSCH includes at least one of:

any PUSCH;

presetting PDCCH scheduling or an associated PUSCH;

dynamically scheduled PUSCH;

terminal-specific PUSCH;

the PUSCH of grant (Configured grant) is Configured.

The preset PDCCH includes at least one of the following:

all PDCCHs, PDCCHs on the terminal-specific control resource set (Control Resource Set, CORESET), PDCCHs on CORESET associated only with terminal-specific search spaces (UE-specific Search Space, USSs), PDCCHs on CORESET associated with USSs and common search spaces CSS, PDCCHs on COESET associated only with CSS, PDCCHs on COESET other than CORESET # 0.

In addition, the transmission mode of the target uplink channel may include: repeating (repetition) transmission mode, a mode of multi-beam simultaneous transmission (e.g., single frequency network (Single Frequency Network, SFN) transmission, frequency division multiplexing (Frequency Division Multiplex, FDM) transmission/space division multiplexing (Space Division Multiplex, SDM), etc.), a preset transmission mode (i.e., single beam transmission mode without repetition) or a transmission mode in which the preset transmission mode, the repeating transmission mode, and the mode of multi-beam simultaneous transmission are dynamically switched.

In the following embodiments, for convenience of description, the mode of simultaneous multi-beam transmission is collectively referred to as SFN transmission mode, and is not particularly limited herein.

The embodiment of the application comprises the following steps for an uplink channel in mTRP: PUCCH, PUSCH, UL RS, and the like, a scheme of applying the unified TCI state is designed.

In implementation, the number, type, etc. of TCI states required for the target uplink channel may also be changed according to the type and/or transmission mode of the target uplink channel, so that the number of the first TCI states indicated by the network side device may be greater than, less than or equal to the number of TCI states required for the target uplink channel.

In the determining the target TCI state of the target uplink channel according to the number of the first TCI states, the first option may determine whether to update the TCI state of the target uplink channel and which TCI states are updated according to whether the number of the first TCI states is greater than or equal to the number of the TCI states required by the target uplink channel, for example: when the number of the first TCI states is greater than or equal to K, K is the number of TCI states required by the target uplink channel, and at least K first TCI states may be used to determine beam information of the target uplink channel (i.e. update all TCI states of the target uplink channel); when the number of the first TCI states is smaller than K, the target uplink channel may use its original TCI state (i.e., the TCI state of the target uplink channel is not updated), or the target uplink channel may use its original partial TCI state and the first TCI state (i.e., the partial TCI state of the target uplink channel is updated). Of course, when the number of the first TCI states is smaller than K, it may also be determined that the target uplink channel stops transmitting, or the transmission mode of the target uplink channel is switched to a transmission mode matching the number of the first TCI states (e.g., assuming that the number of the first TCI states is equal to 1 and the transmission mode of the target uplink channel is a mode of repeating transmission using 2 TCI states, or a mode of performing multi-beam simultaneous transmission of FDM, SDM, or SFN, the terminal may determine that the configuration of the repeating transmission mode or the multi-beam simultaneous transmission mode fails, so as to change the transmission mode of the target uplink channel to a single-beam transmission mode using only 1 TCI state).

In the second option, in determining the target TCI state of the target uplink channel according to the arrangement order or the position of the first TCI state, the first TCI state arranged at a preset position (e.g., the first bit, the second bit, etc.) may be determined as the target TCI state of the target uplink channel, for example: when the number of the first TCI states is at least 2 and the target uplink channel needs to use 2 TCI states, the first TCI states arranged in the first bit and the second bit may be determined as target TCI states of the target uplink channel.

In implementation, when the network side device activates or indicates the first TCI state, the network side device indicates the TCI state by activating or indicating a TCI code point, where the TCI code point may correspond to one or more TCI states arranged in sequence. Thus, when a TCI code point corresponds to a plurality of TCI states, each TCI state has a respective permutation order or permutation position.

In the third option, in determining the target TCI state of the target uplink channel according to the correspondence between the first TCI state and the first identification information, the first TCI state corresponding to the preset first identification information may be determined as the target TCI state of the target uplink channel. For example: and determining a first TCI state corresponding to the preset value (which can be the minimum value) CORESEETPoolIndex as a target TCI state of a target uplink channel.

In the process of determining the target TCI state of the target uplink channel according to the type of the target uplink channel, for different types of target uplink channels, the target TCI state may be determined according to the TCI state related to the channel type. For example: and determining the target TCI state of the PUSCH or the ULRS resource according to the TCI state of the PDCCH of the PUSCH or the UL RS resource.

And fifthly, in the process of determining the target TCI state of the target uplink channel according to the transmission mode of the target uplink channel, determining the number of TCI states required to be used by the target uplink channel according to the transmission mode of the target uplink channel, so that the number of the target TCI states can be determined.

Optionally, before the terminal determines the target TCI state of the target uplink channel according to the target information, the method further includes:

the terminal receives second indication information from network side equipment, and determines a transmission mode of the target uplink channel according to the second indication information, wherein the transmission mode comprises the following steps: the system comprises a preset transmission mode, a repeated transmission mode, a multi-beam simultaneous transmission mode or a transmission mode in which the preset transmission mode, the repeated transmission mode and the multi-beam simultaneous transmission mode are dynamically switched, wherein the preset transmission mode is single-beam transmission of non-repeated transmission.

In this embodiment, the network side device may instruct the transmission mode of the target uplink channel. Further, the second indication information may be used to indicate a transmission mode of the target uplink channel, or the second indication information may be used to indicate the number of target TCI states, where the number of target TCI states may be understood as indirectly indicating a transmission mode of the target uplink channel, for example: the network side device may use indication signaling for each PUCCH resource or PUCCH resource group to indicate each transmission mode such as transmission using only a single TCI state (single beam transmission), multiple TCI states (multi-beam transmission), and dynamically switching the number of TCI states (i.e. switching between single beam transmission and multi-beam transmission). Wherein, the indication signaling may be: the indication of the various transmission modes is achieved either explicitly by RRC, MAC CE or DCI signaling or indirectly by the number of TCI states indicated by RRC, MAC CE or DCI signaling. For example: the RRC configures the repetition times to be more than 1, and then the transmission is carried out for a plurality of TCI states; the MAC CE activates one codepoint to correspond to a plurality of TCI states, and then the TCI states are transmitted; the DCI indicates one or more TCI states, dynamic switching between single TCI state transmission and multiple TCI state transmission is achieved.

Optionally, in the case that the target information includes the number of the first TCI states, the determining, by the terminal, the target TCI state of the target uplink channel according to the target information includes:

if the number of the first TCI states is one, the terminal determines that the transmission mode of the target uplink channel is single-beam transmission (i.e., the target uplink channel directly uses the one first TCI state for single-beam transmission); or alternatively, the process may be performed,

if the number of the first TCI states is at least two, the terminal determines that the transmission mode of the target uplink channel is single-beam transmission (i.e., the target uplink channel uses one of the at least two first TCI states for single-beam transmission) or repeated transmission mode or multi-beam simultaneous transmission mode (i.e., the target uplink channel uses at least two or all of the at least two first TCI states for repeated transmission or multi-beam simultaneous transmission); or alternatively, the process may be performed,

if the number of the first TCI states is one, the terminal determines that the transmission mode of the target uplink channel is single-beam transmission (i.e., the target uplink channel directly uses the one first TCI state to perform non-repeated single-beam transmission) or the repeated transmission mode (i.e., the target uplink channel directly uses the one first TCI state to perform repeated transmission, or the target uplink channel uses the original at least two TCI states to perform repeated transmission, or the target uplink channel uses the original partial TCI state and the one first TCI state to perform repeated transmission), or the mode of multi-beam simultaneous transmission (i.e., the target uplink channel uses the original at least two TCI states to perform multi-beam simultaneous transmission, or the target uplink channel uses the original partial TCI state and the one first TCI state to perform beam simultaneous transmission); or alternatively, the process may be performed,

In the case that the terminal adopts the repeated transmission mode or the multi-beam simultaneous transmission mode, if the number of the first TCI states is at least two, the terminal determines that the transmission mode of the target uplink channel is the repeated transmission mode or the multi-beam simultaneous transmission mode (i.e., the target uplink channel uses at least two or all of the at least two first TCI states for repeated transmission or multi-beam simultaneous transmission).

In the sixth option, in the process of determining the target TCI state of the target uplink channel according to the time domain behavior of the target uplink channel or the time domain behavior of the information carried by the target uplink channel, whether the time domain behavior of the target uplink channel is periodic or aperiodic or whether the time domain behavior of the information carried by the target uplink channel is periodic or aperiodic can be distinguished, so that different target TCI states can be adopted for the periodic uplink channel and the aperiodic uplink channel, or different target TCI states can be adopted for the uplink channel carrying periodic information and the uplink channel carrying aperiodic information.

Optionally, in the case that the time domain behavior of the target uplink channel is periodic uplink channel or the time domain behavior of the carried information is periodic information, the target TCI state includes at least one of the following:

Other TCI states except the first TCI state in the TCI state pool or the original TCI state of the target uplink channel;

a first TCI state corresponding to the first identification information associated with the target uplink channel;

a first TCI state indicated by third indication information from the network side device;

a second preset TCI state;

wherein the second preset TCI state includes at least one of:

the first TCI states arranged at preset positions in all the first TCI states;

and a first TCI state corresponding to the preset first identification information.

The third indication information may be located in the configuration information of the target uplink channel, so that signaling overhead may be reduced. Of course, the third instruction information may be any newly added signaling, which is not specifically limited herein.

In an implementation, taking the target uplink channel as a PUCCH resource carrying periodic information or a periodic PUCCH resource as an example, the method for confirming the target TCI state of the PUCCH may include at least one of the following:

mode one: the target TCI state comprises other candidate TCI states except the first TCI state in a TCI state pool, or the target TCI state comprises an original TCI state of the target uplink channel, namely the first TCI state indicated by the PUCCH without using network side equipment;

Mode two: the target TCI state includes a first TCI state corresponding to the first identification information associated with (corresponding to or belonging to) the target uplink channel, where the target uplink channel has associated, corresponding to or belonging to (collectively referred to as "associated" in the embodiment of the present application) first identification information, and each first TCI state has respective corresponding first identification information, so that it can be determined that the first TCI state corresponding to the same first identification information as that of the target uplink channel is applied to the PUCCH;

mode three: the target TCI state includes a first TCI state indicated by third indication information from the network side device, for example: assuming that the third indication information is MAC CE or DCI signaling sent by the network side device, a first signaling field in the signaling carries first indication information for indicating a first TCI state applied to the PUCCH, or the third indication information may be located in configuration information of the target uplink channel, for example: the signaling may be configured in configuration information of PUCCH resource, and the configuration may be used only for periodic PUCCH resource or PUCCH resource carrying periodic information, and the third indication information may not be configured for other non-periodic PUCCH resource (e.g. semi-persistent, dynamic scheduling, etc.).

Mode four: the target TCI state comprises a second preset TCI state, wherein the second preset TCI state comprises at least one of:

the first TCI states are arranged at preset positions in all the first TCI states, and the first TCI states correspond to the preset first identification information. For example: the target TCI state includes a first TCI state, a first TCI state corresponding to a first channel group, a CORESET group, a PUCCH resource group, or a TRP ID (coresetpoolndex).

In practice, the meaning and effect of the second preset TCI state are the same as the meaning and effect of the first option and the second option of the first preset TCI state, and are not described in detail herein,

in this embodiment, the first TCI state in unified TCI framework, which is shared by multiple channels or reference signal resources, may be applied to a periodic uplink channel or an uplink channel resource carrying periodic information.

Note that, when the target uplink channel is a PUSCH or UL RS resource and the PUSCH or UL RS is aperiodic, the target TCI state may be a TCI state of a PDCCH scheduling the PUSCH or UL RS resource.

In the step of determining the target TCI state of the target uplink channel according to the number of the first identification information corresponding to the target uplink channel, the transmission mode of the target uplink channel may be determined according to the number of the first identification information corresponding to the target uplink channel, for example: for the PUCCH configured as the SFN transmission mode, it may simultaneously correspond to the first identification information such as the 2 channel groups, the CORESET group, the coresetpoolndex, or the TRP ID, and at this time, 2 TCI states indicated by the network side device and corresponding to the 2 first identification information may be applied to the SFN PUCCH.

In the step of determining the target TCI state of the target uplink channel according to the value of the first identification information corresponding to the target uplink channel, the method may determine which TCI state corresponds to the value of the first identification information according to the correspondence between the first identification information and the TCI state.

In practice, the above options one to eight may be combined with each other, that is, the terminal may determine the target TCI state according to one or at least two of the above options one to eight. For example: under the condition that the first TCI state indicated by the network side device can meet the requirements of the target uplink channel on the number of TCI states, the channel type, the associated first identification information and the like, the terminal can select K TCI states from the first TCI states indicated by the network side device according to the target information, wherein K is the number of TCI states required by the target uplink channel.

As an optional implementation manner, in a case where the number of the first TCI states is greater than K, K is the number of TCI states required by the target uplink channel, and the determining, by the terminal, the target TCI state of the target uplink channel according to the target information includes:

The terminal determines K first TCI states arranged at preset positions as target TCI states of a target uplink channel; or alternatively, the process may be performed,

the terminal determines a target TCI state of the target uplink channel according to the indication of first indication information from the network side equipment, wherein the first indication information is used for indicating K first TCI states.

The K first TCI states arranged at the preset positions can be understood as: after at least two first TCI states indicated by the network side device are arranged according to a preset sequence, a preset position of each first TCI state is determined according to an arrangement position of each first TCI state, or each first TCI state is corresponding to a respective preset position identifier.

In this way, the terminal may determine the preset location according to a default rule, for example: the TCI state of the predetermined location is determined to be the TCI state arranged in the first TCI state, and of course, in implementation, the network side device may also indicate the predetermined location to the terminal, so that the terminal may determine the first TCI state corresponding to the predetermined location after obtaining the predetermined location.

In implementation, the preset sequence or position of the first TCI state may be determined according to the sequence or positions of the plurality of first TCI states corresponding to the codepoint when the MAC CE activates the first TCI state, or may be determined when the DCI indicates the first TCI state, which is not limited herein.

In addition, the terminal determines the target TCI state of the target uplink channel according to the indication of the first indication information from the network side device, which may be understood that the terminal receives the first indication information from the network side device, so as to indicate to the terminal, by the network side device, which one or which one of the first TCI states is specifically used by the target uplink channel.

It should be noted that, in the case where the target TCI state includes at least two first TCI states, the first indication information may indicate which two first TCI states are, and may also indicate which first TCI states the two TCI states of the target uplink channel correspond to, respectively. For example: assuming that the number of the first TCI states is 2, the target uplink channel adopts a repeated transmission mode, and if the first indication information is 00, a first one of the 2 first TCI states can be selected for repeated transmission of the target uplink channel; if the first indication information is 01, selecting a second of the 2 first TCI states for repeated transmission of the target uplink channel; if the first indication information is 10, selecting a first one of the 2 first TCI states as a first TCI state for repeated transmission of the target uplink channel, and selecting a second one of the 2 first TCI states as a second TCI state for repeated transmission of the target uplink channel; if the first indication information is 11, selecting a second one of the 2 first TCI states as a first TCI state for repeated transmission of the target uplink channel, and selecting a first one of the 2 first TCI states as a second TCI state for repeated transmission of the target uplink channel.

In this embodiment, compared to the embodiment in which the terminal determines that the K first TCI states arranged at the preset position are the target TCI states of the target uplink channel, the network side device can flexibly configure which one or which one of the TCI states is specifically used by the target uplink channel of the terminal.

Optionally, the first indication information is carried in a first signaling domain, where the first signaling domain is a signaling domain in a media access Control (Medium Access Control, MAC) Control Element (CE) signaling or DCI signaling.

In one embodiment, the first signaling domain may be a signaling domain in MAC CE signaling for activating the first TCI state.

In another embodiment, in a case where the MAC CE signaling activates at least two TCI states, the first signaling field may be a signaling field in DCI signaling for indicating the first TCI state.

In implementations, the first signaling field may be applicable to DCI format 1_1 or DCI format 1_2.

In this embodiment, the first indication information may be carried by using a newly added signaling field in the existing MAC CE signaling or DCI signaling, so that signaling overhead may be reduced.

It should be noted that, in implementation, the first signaling domain may be configured to exist or be validated only when the first indication information is required, and in other unnecessary cases, the first signaling domain may not be configured or configured but not validated. For example: the first signaling domain is validated or exists when a preset condition is met, the preset condition comprising at least one of the following:

The network side equipment configures the first signaling domain;

the network side equipment indicates at least two first TCI states through DCI signaling;

at least one code point of TCI code points activated by the network side equipment through the MAC CE corresponds to at least two TCI states.

In this embodiment, whether to configure the first signaling domain or whether to configure the first signaling domain is determined by determining a preset condition, so that the terminal detects the first indication information carried in the first signaling domain only when the first signaling domain is configured and the first signaling domain is effective, and unnecessary computation power and resource consumption of the terminal can be reduced.

Of course, in implementation, there may be a case where the first TCI state indicated by the network side device cannot meet the requirements of the target uplink channel on the number, the type, the associated first identification information, and the like of the TCI state, and at this time, the determining, by the terminal, the target TCI state of the target uplink channel according to the target information may include at least one of the following: the terminal may determine that the target uplink channel adopts an original TCI state (i.e., does not update the TCI state of the target uplink channel), update only one or a part of the original TCI states of the target uplink channel to the first TCI state, or stop performing target uplink channel transmission according to the original configuration information (e.g., retransmission, SFN transmission) of the target uplink channel, and so on.

As an optional implementation manner, in a case that the target uplink channel has M TCI states, if the number of the first TCI states is at least M, the target TCI state is at least M first TCI states, and M is an integer greater than or equal to 2; or alternatively, the process may be performed,

if N is smaller than M, the target TCI state is M TCI states of the target uplink channel, or the target TCI state is (M-N) TCI states of the target uplink channel and the N first TCI states; or, the target TCI state is the N first TCI states; or alternatively, the process may be performed,

in the case that the target uplink channel has 1 TCI state, if the number of the first TCI states is at least 1, the target TCI state is at least 1 first TCI state.

If N is smaller than M, the target TCI state may be the original M TCI states of the target uplink channel, and the TCI state of the target uplink channel may not be updated.

In the case where the target uplink channel has M TCI states, if N is smaller than M, the target TCI states are the (M-N) TCI states and the N first TCI states, which are the original (M-N) TCI states of the target uplink channel, and only N TCI states of the M TCI states of the target uplink channel may be updated, while the remaining (M-N) TCI states are not updated.

In the case where the target uplink channel has M TCI states, if N is smaller than M, the target TCI state may be the N first TCI states, and when the target uplink channel uses 2 uplink TCI states for transmission (for example, repeat transmission or SFN transmission), if the number of first TCI states is 1, it may be determined that the repetition configuration or SFN configuration fails, so that the 1 first TCI state is used to continue to perform repeat transmission of the target uplink channel or use 1 first TCI state to transmit the target uplink channel, or stop transmitting the target uplink channel.

As an alternative embodiment, in case the number of the first TCI states is greater than 1:

the target TCI state includes at least one of:

all first TCI states;

the network side equipment is used for repeating a target uplink channel of a transmission mode or a mode of multi-beam simultaneous transmission from at least two first TCI states indicated in all first TCI states;

the network side equipment indicates one first TCI state from all the first TCI states;

a first TCI state identical to a TCI state of a first PDCCH, wherein the first PDCCH is used for scheduling or triggering the target uplink channel; or the first PDCCH is used for scheduling a target PDSCH, and feedback information of the target PDSCH is carried by the target uplink channel; or the first PDCCH is associated with the target uplink channel;

the method comprises the steps of receiving first TCI states of each repeated transmission of a target uplink channel, wherein the first TCI states of each repeated transmission of the target uplink channel correspond to different first identification information respectively;

at least two first TCI states corresponding to the at least two first identification information, wherein the target uplink channel is associated with the at least two first identification information;

at least one first TCI state corresponding to the one first identification information, where the target uplink channel is associated with one first identification information (in general, one first identification information corresponds to one first TCI state, in the case of at least two first TCI states corresponding to one first identification information, it may be understood that one TRP corresponds to two TCI states, and the angles of the two TCI states are close, where the first identification information may be coresetpoolndex or channel group identification information);

and determining at least two first TCI states according to the preset corresponding relation.

In an implementation, the target uplink channel adopting the retransmission mode may be PUCCH retransmission and/or PUSCH retransmission.

In the related art, 3gpp r17 supports a PUSCH repetition transmission scheme dynamically scheduled in a Time Division Multiplexing (TDM) manner with one DCI in a multi-TRP scenario.

Multiple transmission beams (spatial correlation) corresponding to different TRPs are used for transmission for each repetition transmission of the PUSCH, respectively, so as to improve the reliability of the PUSCH transmission.

For PUSCH repetition of Type a (slot-level), one PUSCH repetition transmission refers to one PUSCH transmission occasion within each slot; for PUSCH repetition transmission of Type B, one PUSCH repetition transmission is then nominal repetition (nominal repetition).

Two sets of beams (or spatial correlation), a precoding matrix (TPMI), power control parameters, etc. can be indicated in the DCI, and a new indication field of 2 bits is added in the DCI to support dynamic switching between STRP and MTRP, and the sequence of PUSCH repeated transmission beams is flexibly exchanged.

The mapping relationship between PUSCH repetition and beam may be configured as a round robin mapping (cyclic mapping) and a consecutive mapping (sequential mapping) by RRC parameters.

In addition, in the related art, the 3gpp r17 also supports a transmission scheme of PUCCH repetition in a multi-TRP scenario.

The network activates two beams (spatial correlation) for a PUCCH resource or PUCCH group, and the PUCCH is transmitted with two beams each repetition.

The mapping relationship between each PUCCH repetition and beam may be configured by RRC parameters to map in turn. (cyclic mapping) and continuous mapping (sequential mapping).

In the first aspect, taking PUCCH adopting repetition or SFN mode as an example in the embodiment of the present application, the target TCI state used by the PUCCH may be determined according to any one of the following manners:

mode one: always using at least two first TCI states (i.e. all first TCI states) indicated by the network side device;

mode two: the network side device indicates at least two first TCI states from the all first TCI states, that is, if a plurality of first TCI states are indicated, the network side device further indicates at least two first TCI states from the plurality of first TCI states, where a specific implementation of further indicating at least two first TCI states from the plurality of first TCI states may be indicated by the first indication information in the above embodiments, for example: the first signaling field in the MAC CE or DCI signaling is indicated and is not described here again;

mode three: the PUCCH uses the TCI state of a preset PDCCH (i.e., a first PDCCH), which may be: scheduling/triggering PDCCH of the PUCCH, feedback information (such as hybrid automatic repeat request acknowledgement (Hybrid Automatic Repeat Request Acknowledgement, HARQ-ACK) of PDSCH (physical downlink shared channel) scheduled by the pre-set PDCCH and PDCCH associated with the PUCCH are carried on the PUCCH;

Mode four: the first TCI state indicated by the network side device corresponds to first identification information (e.g., channel group, CORESET group, PUCCH group, TRP ID, coresetpoolndex, etc.), for example: according to the arrangement sequence or the positions of the N first TCI states, the N first TCI states are in one-to-one correspondence with the N first identification information. In this way, according to the channel group, CORESET group, PUCCH group or TRP ID corresponding to, associated with or belonging to the PUCCH, the first TCI state corresponding to the first identification information associated with the PUCCH may be determined;

it should be noted that, in the case that the PUCCH corresponds, is associated with or belongs to one first identification information, it may be determined that the target TCI state includes the one first TCI state; in case that the PUCCH corresponds, associates or belongs to at least two first identification information (for example, the PUCCH adopts a repeated transmission mode), it may be determined that the target TCI state includes at least two first TCI states corresponding to the at least two first identification information one-to-one, so that the at least two first TCI states are respectively used as TCI states of each repeated transmission of the PUCCH, that is, the TCI states of each repeated transmission of the PUCCH correspond to different channel groups/CORESET groups/PUCCH groups/TRP IDs/coresupoolindex, or, in case of the PUCCH SFN, at least two first TCI states (each first TCI state corresponds to different first identification information) in case of the PUCCH SFN may be determined according to the PUCCH corresponds, associates or belongs to the at least two first identification information.

Mode five: the at least two first TCI states indicated by the network side equipment have a corresponding relation with each repetition transmission of the PUCCH, and according to the corresponding relation, the TCI state of each repetition transmission of the PUCCH can be determined.

Mode six: if the target uplink channel is associated with at least two first identification information, the target TCI state comprises at least two first TCI states corresponding to the at least two first identification information;

if the target uplink channel is associated with one piece of first identification information, the target TCI state comprises at least one first TCI state corresponding to the one piece of first identification information.

For example: assuming that the network side device configures a PUCCH resource group (group), and indicates 2 first TCI states, i.e., TCI state 1 and TCI state 2, if group 1 corresponds to TCI state 1, group 2 corresponds to TCI state 2, group3 corresponds to TCI state 1 and TCI state 2, the network side device may implement switching of PUCCH transmission between srrp and mTRP by scheduling PUCCH resources belonging to different PUCCH resource groups, and determine the TCI state of the PUCCH resources. The corresponding relation between the PUCCH resource group and the TCI state may be determined by: 1) The network side equipment explicitly configures the corresponding relation through signaling; 2) Implicit correspondence according to the order or position of the plurality of PUCCH resource groups and the plurality of TCI states, for example: the first TCI state corresponds to a first PUCCH resource group and the second TCI state corresponds to a second PUCCH resource group. In addition, in implementation, 1 PUCCH resource may be configured in 2 PUCCH resource groups at the same time, and the PUCCH resource may correspond to 2 TCI states.

Mode seven: in the case that the transmission mode of the target uplink channel is a repeated transmission mode or a multi-beam simultaneous transmission mode, the target TCI state includes: and determining at least two first TCI states according to the preset corresponding relation.

Wherein, the preset corresponding relation comprises:

the arrangement sequence or arrangement position of the first TCI state corresponds to the TCI state of each repeated transmission of the target uplink channel; or alternatively, the process may be performed,

the arrangement order or arrangement position of the first TCI state corresponds to each TCI state of the target uplink channel.

In an implementation, the preset correspondence may be: the arrangement order or position of the TCI state or the TCI state ID corresponds to the time division multiplexing (Time Division Multiplexing, TDM) sequential transmission order of the PUCCH repetition, etc., and is not particularly limited herein.

The present embodiment provides a repetition or SFN unified TCI state that can be applied to mTRP scenarios.

In implementations, multi-TRP transmissions can be classified into two cases, single DCI scheduling (sdi) and multi-DCI (mci) scheduling based on control signaling:

multi-DCI (mci) scheduling: each TRP transmits a respective PDCCH, each PDCCH scheduling a respective PDSCH, when a plurality of CORESETs configured for the UE are associated to different RRC parameters coresetpoinlindex to correspond to the different TRPs with coresetpoinlindex. At this time, PDSCH of two TRP schedules may be completely overlapped, partially overlapped or non-overlapped, and PUSCH of two TRP schedules cannot be overlapped.

Single DCI (sdi) scheduling: one PDSCH is scheduled by one TRP transmitted PDCCH, when multiple CORESETs configured for a UE cannot be associated to different coresetpoolndexs. In this case, the MAC CE activates at most 8 code points (codepoints), at least one of which corresponds to two TCI states. When the codebook indicated by TCI field in one DCI corresponds to two TCI states and indicates that one TCI state contains "QCL-type", it means that the scheduled PDSCH is from two TRPs, and the PDSCH includes multiple transmission schemes such as: data of different layers of PDSCH correspond to two TCI states (scheme 1a, spatial multiplexing (Space Division Multiplexing, SDM)); or the data on different frequency domain subcarriers corresponds to two TCI states (scheme 2a/2b, frequency division multiplexing (Frequency Division Multiplex, FDM)); or each time domain repetition comes from a different TRP (scheme 3/4, time division multiplexing (Time Division Multiplexing, TDM)). The specific transmission scheme of the PDSCH is determined by other means, such as: the DMRS code division multiplexing (Code Domain Multiplexing, CDM) group number is indicated by higher layer parameter configuration or by DCI, and will not be described here.

In the embodiment of the present application, for the mdis, the aperiodic PUCCH resource and the scheduling (scheduling) PDCCH may be grouped and correspond to the same TRP. Thus, for joint TCI state, PUCCH may use the same beam (PUCCH follow scheduling PDCCH beam) as scheduled PDCCH; for the independent TCI state, PUCCH may use UL beam (for separation TCI, PUCCH use ULbeam corresponding to scheduling PDCCH DL beam) corresponding to DL beam of the scheduled PDCCH. That is, in the present embodiment, a unified TCI state applicable to sdi scheduling and mdis scheduling in the mTRP scenario is provided.

In a second aspect, in the embodiment of the present application, for a PUSCH adopting a repetition or SFN manner, a target TCI state used by the PUSCH may be determined according to any one of the following manners:

mode one: at least two first TCI states (i.e. all first TCI states) indicated by the network side device are always used, for example: assuming that the network side equipment indicates 2 first TCI states, and for the PUSCH configured into the repetition/SFN transmission mode, the 2 TCI states are the 2 first TCI states indicated by the network side equipment;

mode two: the network side device indicates at least two first TCI states from among the all first TCI states, that is, if a plurality of first TCI states are indicated, the network side device further indicates at least two first TCI states from among the plurality of first TCI states, for example: indicating which one of the N joint TCI states/separate UL TCI states or 2 TCI states the PUSCH uses, through a first signaling field newly added in DCI signaling for indicating the N joint TCI states/separate UL TCI states, wherein the first signaling field may further indicate a use order of each TCI state in case of indicating 2 TCI states; for example: according to the manner listed in the fifth manner of determining the target TCI state of the PUCCH, the terminal may determine, according to a preset correspondence, that at least two first TCI states indicated by the network side device are at least two TCI states of PUSCH in the repetition/SFN transmission mode.

Mode three: the PUSCH configured as the repetition/SFN transmission mode may simultaneously correspond to 2 pieces of first identification information (e.g., a channel group, a CORESET group, a PUCCH resource group, or a TRP ID), and at this time, 2 TCI states corresponding to the 2 pieces of first identification information, which are indicated by the network side device, may be applied to the repetition/SFN PUSCH, where the order or position of the TCI states corresponds to the order of sizes of the first identification information one by one. Of course, if the PUSCH corresponds to one first identification information, 1 TCI state corresponding to the first identification information is used. For example: and continuing to perform repetition transmission by using the 1 TCI state, ending the repetition/SFN transmission mode, stopping the transmission of the PUSCH, and the like.

That is, if the target uplink channel is associated with at least two first identification information, the target TCI state includes at least two first TCI states corresponding to the at least two first identification information; if the target uplink channel is associated with a first identification information, the target TCI state includes a first TCI state corresponding to the first identification information.

Mode four: the at least two first TCI states indicated by the network side device are 2 TCI states serving as repetition/SFN PUSCH according to a preset corresponding relationship, where the preset corresponding relationship may be: the 2 first TCI states indicated by the network side device and the 2 TCI states of the repetition/SFN PUSCH have corresponding arrangement sequences or positions, and the meaning of the preset corresponding relationship has the same meaning as the preset corresponding relationship in the fifth mode listed in the determining the target TCI state used by the PUCCH, which is not described herein.

As an optional implementation manner, if the number of the first TCI states is greater than 1 and the transmission mode of the target uplink channel is a preset transmission mode, the target TCI state includes a first preset TCI state, where the first preset TCI state includes at least one of the following:

the first TCI states arranged at preset positions in all the first TCI states;

a first TCI state corresponding to the preset first identification information;

the network side device selects a first TCI state indicated from the total first TCI states.

In implementation, the preset transmission mode specifically refers to a single beam transmission mode of non-repeated transmission. For example: the above-described target uplink channel employing the preset transmission mode may be a conventional single beam transmission without repetition and without SFN, which may be transmitted to only 1 TRP.

Option one: the first TCI state arranged at the preset position in the above all the first TCI states may be at least 1 first TCI state arranged at any position such as the first position, the second position, the last position, etc., where the preset position may be determined by one or more of any modes such as protocol convention, default to the first position, and network side device update, which is not limited herein specifically.

Option two: the preset first identification information may be a preset channel group, a preset CORESET group, a preset PUCCH resource group, or a preset TRP ID (coresetpoolndex), for example: in implementation, the first preset first identification information may be determined by one or more of any manner of protocol convention, default to be first, network side device update, and the like, which is not limited herein specifically.

Option three: the network side device may understand from all the first TCI states indicated in the first TCI states that: the network side device further indicates one or at least two of the at least two first TCI states in addition to the at least two first TCI states. For example: the network side device further indicates the target TCI state in the at least two first TCI states through the first indication information, and the meaning and effect of the first indication information may refer to the explanation of the first indication information in the previous embodiment, which is not described herein.

In this embodiment, the first TCI state in unified TCI framework, which is shared by multiple channels or reference signal resources, may be applied to PUCCH and/or PUSCH in a preset transmission mode.

As an optional implementation manner, in a case that the number of the first TCI states is greater than 1, if the type of the target uplink channel is PUSCH or UL RS resource set, the target TCI state includes at least one of the following:

at least one of a first TCI state corresponding to a first code point or a first TCI state corresponding to the first code point, where the first code point is a code point indicated by a TCI field in DCI indicating the first TCI state;

a first TCI state corresponding to the preset first identification information;

a first TCI state identical to the TCI state of the PDCCH in which the DCI of the target uplink channel is scheduled;

a first TCI state corresponding to the first identification information associated with the PDCCH in which the DCI scheduling the target uplink channel is located;

and a first TCI state corresponding to the first identification information associated with the target uplink channel.

Scheme one: the first code point is a TCI code point indicated by TCI field on DCI signaling, and the target TCI state is the 1 first TCI state when the first code point corresponds to the 1 first TCI state; in the case that the first code point corresponds to 2 first TCI states, the target TCI state may be 1 (for example, TCI states arranged at a preset position) or 2 of the 2 first TCI states, specifically, when the PUSCH has 2 TCI states, the target TCI state may be determined to be 2 first TCI states, and when the PUSCH has 1 TCI state, the target TCI state may be determined to be 1 of 2 first TCI states;

Scheme II: each first TCI state may correspond to respective first identification information, such as: the first preset identification information may be a first channel group/a first CORESET/a first TRP ID, or may also be first identification information of other preset sequences or positions such as a second channel group/a second CORESET/a second TRP ID, where in implementation, the preset first identification information may be first identification information determined according to a default rule or according to an instruction of a network side device, and after the first identification information is determined, a TCI state corresponding to the first identification information may be applied to a PUSCH;

scheme III: in an implementation, when the PDCCH in which the DCI scheduling or triggering the target uplink channel is located is the same as the transmission mode of the target uplink channel, it may be determined that the target TCI state includes a first TCI state that is the same as the TCI state of the PDCCH in which the DCI scheduling or triggering the target uplink channel is located. For example: if the PUSCH is the SFN, the PDCCH also needs to be the SFN, and the scheme III is applied;

of course, in the case where the PDCCH in which the DCI of the target uplink channel is scheduled adopts different transmission methods, the target uplink channel may use the TCI state of the PDCCH in which the DCI of the target uplink channel is scheduled or a part of the TCI state of the PDCCH in which the DCI of the target uplink channel is scheduled.

Optionally, in a case that a transmission mode of a PDCCH in which the DCI indicating the first TCI state is located or a PDCCH for scheduling the target uplink channel is a repeated transmission mode or a mode of multi-beam simultaneous transmission, the target TCI state includes:

the first TCI state is the same as the TCI state of the PDCCH using the repetition transmission or the multi-beam simultaneous transmission, or at least one of the first TCI states used for the repetition transmission or the multi-beam simultaneous transmission of the PDCCH.

In this embodiment, when the transmission mode of the PDCCH indicating the DCI in the first TCI state or the PDCCH for scheduling the target uplink channel is a repeated transmission mode or a multi-beam simultaneous transmission mode, the repeated transmission or multi-beam simultaneous transmission PDCCH may have at least two TCI states, and in this case, the target uplink channel may adopt one or at least two of the at least two TCI states, for example: when 2 TCI states are required for PUSCH, the PUSCH may use 2 TCI states of PDCCH transmitted repeatedly or multi-beam simultaneously.

Scheme IV: the target TCI state may be: a first TCI state associated with, corresponding to, or corresponding to a channel group/CORESET group/TRP ID (coresetpoolndex) to which DCI scheduling the target uplink channel is located;

Scheme five: the target uplink channel may also use a first TCI state corresponding to its own association, correspondence, or channel group/TRP ID (coresetpoolndex) to which it belongs.

By the above embodiment, unified TCI framework indicated by the network side device and available in the mTRP scene can be applied to PUSCH, UL RS resources or UL RS resource set.

As an optional implementation manner, in a case that the number of the first TCI states is greater than 1, if the type of the target uplink channel is PUSCH configured with uplink configuration grant type 1, the target TCI state includes at least one of the following:

presetting a first TCI state corresponding to CORESETPoolIndex, wherein the preset CORESETPoolIndex comprises CORESETPoolIndex corresponding to signaling for sending PUSCH configuration information, or the preset COESETPoolIndex is CORESETPoolIndex with a preset value;

all the first TCI states are arranged at the first TCI states at preset positions;

a TCI state identifier indicated by the configuration information of the PUSCH of the uplink configuration grant type 1 or a first TCI state corresponding to the indicated coresetpoolndex;

a first TCI state of a preset SRS resource, where the preset SRS resource is an SRS resource indicated by an SRI indicated by a sounding reference signal SRS resource in configuration information of a PUSCH of the uplink configuration grant type 1;

And determining at least one first TCI state according to the power control parameters in the configuration information of the PUSCH of the uplink configuration grant type 1.

Scheme one: the preset coreetpolindex may be used as a preset TRP ID, where the preset TRP may be a TRP corresponding to signaling for sending PUSCH configuration information, or the preset TRP may be a TRP with a minimum ID, for example, the minimum coreetpolindex (i.e., the coreetpolindex with the preset value may be the coreetpolindex with the minimum value), and the scheme one may be used in the mdis mode;

scheme II: for the PUSCH configured with UL configured grant type1, a scheme of using all the first TCI states arranged at a preset position from among the first TCI states, which can be applied to a sdi mode and a mdis mode;

scheme III: the network side device may indicate to the terminal which TCI state the PUSCH configured UL configured grant type1 may use, or indicate which TRP ID (coresetpoolndex) the PUSCH configured UL configured grant type1 may use, corresponding TCI state, through the first signaling (or indicating the TCI state in the same manner as the first signaling field in the above embodiment). The first signaling may be configured in configuration information of CG type1 PUSCH, such as configuration index (configuration index) information of a configured grant. For example: the first signaling may use various bit sequence values to characterize which TCI state or 2 TCI states are used, which may be: the non-configured or default first signaling bit, 0 or 1 indicates that a certain TCI state is used, 00/01/10/11 indicates that 1 or 2 TCI states are used (even indicates the use sequence of 2 TCI states), and the specific bit corresponds to the indication scheme, which is similar to the first indication information in the first signaling domain and is not described herein again. The third scheme can be used for a sDCI mode and a mDCI mode;

Scheme IV: the PUSCH configured UL configured grant type1 may use the parameters in the configuration information to determine the target TCI state: TCI status of SRS resource as indicated by the sounding reference signal (Sounding Reference Signal, SRS) resource indication (SRS resource indicator, SRI). The fourth scheme can be used for a sDCI mode and a mDCI mode;

scheme five: the at least one first TCI state determined according to the power control parameter in the configuration information of the PUSCH of the uplink configuration grant type1 may be: and determining one (one by default or one of the at least two first TCI states indicated by the network side equipment through first signaling) or at least two of the at least two first TCI states according to the number of power control parameters (such as an open Loop receiving end power target value P0, a partial path loss compensation factor alpha and a closed Loop power control Index (CLI)) in the configuration information. In the implementation, the configuration grant CG PUSCH does not use a Power control Parameter (PC) set (setting) associated with at least two first TCI states indicated by the network side device. The fifth scheme may be used for sdi mode and mdi mode.

By the above embodiment, unified TCI framework indicated by the network side device and available in the mTRP scene can be applied to PUSCH with configuration grant.

As an optional implementation manner, in a case where the number of the first TCI states is greater than 1, if the type of the target uplink channel is UL RS resources or resource sets, the target TCI states include:

a first TCI state of the first identification information that is the same as the UL RS resource or resource set association, for example: the 2 first TCI states indicated by the network side device are respectively associated to respective first identification information (channel group, CORESET group, PUCCH resource group or TRP ID), then the UL RS resource or resource group may determine which of the 2 first TCI states is used by the UL RS resource or resource group according to the first identification information associated therewith, that is, the first TCI state corresponding to the first identification information associated therewith is used;

a first TCI state that is the same as a TCI state of a PDCCH triggering the UL RS resource or resource set, which may be aperiodic in implementation;

a first TCI state corresponding to the UL RS resources or resource sets, wherein each UL RS resource or resource set has a respective corresponding TCI state, for example: the 2 first TCI states indicated by the network side device correspond to respective UL RS resources or resource sets respectively, if the network configures 2 UL RS resource sets, the first TCI state is used for all UL RS resources in the first UL RS resource set, the second first TCI state is used for all UL RS resources in the second UL RS resource set, if the network configures 1 UL RS resource set and the resource set contains 2 UL RS resources, the first TCI state is used for the first UL RS resources in the UL RS resource set, and the second first TCI state is used for the second UL RS resources in the UL RS resource set.

In this embodiment, unified TCI framework indicated by the network side device and available in the mTRP scenario may be applicable to UL RS resources or resource groups.

It should be noted that in implementation, there are also cases where the network side device indicates only one first TCI state, for example: the network side device indicates 1 join TCI state or 1 separate UL TCI state as the first TCI state. At this time, a PDCCH in which DCI indicating the first TCI state is located may use various transmission modes (e.g., a preset transmission mode (non-repetition and non-SFN), an SFN transmission mode, a repetition transmission mode).

In this scenario, the beam information determining schemes of the various uplink channels are as follows:

as an optional implementation manner, if the transmission mode of the target uplink channel is a repeated transmission mode or a multi-beam simultaneous transmission mode when the number of the first TCI states is equal to 1, the terminal determines, according to the target information, a target TCI state of the target uplink channel, including at least one of the following:

the terminal determines repeated transmission modes of the target uplink channel or configuration failure adopting simultaneous transmission of at least two uplink TCI states;

The terminal determines that the target uplink channel is transmitted based on the first TCI state;

the terminal determines that the target TCI state comprises at least two original TCI states of the target uplink channel;

the terminal determines to update a third preset TCI state in at least two original TCI states of the target uplink channel into the first TCI state; the third preset TCI state corresponds to the same first identification information as the first TCI state; or the preset TCI state is one of at least two original TCI states of the target uplink channel, which is positioned at a preset position; or the third preset TCI state is associated with the first TCI state.

In this embodiment, when the transmission mode of the target uplink channel is the repetition transmission mode or the SFN transmission mode and when the target uplink channel originally uses 2 TCI states, if the network side device only indicates 1 first TCI state, the target uplink channel is taken as a PUCCH as an example, and the target TCI state of the PUCCH may be determined in the following manner (it should be noted that this embodiment may also be applied to other types of channels such as PUSCH, and this is taken as an example and not to constitute a specific limitation):

1) For PUCCH of repetition/SFN transmission mode, if 2 TCI states are used originally, when the network side device indicates 1 the first TCI state, PUCCH repetition/SFN configuration fails, i.e. repetition=1or does not send the PUCCH any more;

2) For PUCCH of repetition transmission mode, PUCCH repetition may be continued using 1 first TCI state indicated by the network side device.

3) The PUCCH for repetition/SFN does not update the TCI state, i.e. the original 2 TCI states of the PUCCH using the repetition/SFN.

4) And updating a third preset TCI state in 2 original TCI states of the PUCCH for repetition/SFN to 1 first TCI state indicated by the network side equipment. Wherein the third preset TCI state may be a TCI state satisfying at least one of the following conditions:

the same first identification information (channel group, CORESET group, PUCCH resource group or TRP ID) corresponding to 1 first TCI state indicated by the network side device;

is one (e.g., the first) of the 2 TCI states of the PUCCH of the repetition/SFN;

and the TCI state which has a corresponding relation with the 1 first TCI states indicated by the network side equipment in the original TCI state.

In this embodiment, only 1 first TCI state is indicated for the network side device, so when the requirement of the repetition/SFN PUCCH on the number of TCI states is not satisfied, unified TCI framework indicated by the network side device and available in the mTRP scene may be applied to the repetition/SFN PUCCH in the manner described above.

As an optional implementation manner, in the case that the number of the first TCI states is equal to 1, the terminal determines, according to target information, a target TCI state of a target uplink channel, where the target TCI state includes at least one of the following:

under the condition that the target uplink channel corresponds to the same first identification information as the first TCI state, the terminal determines that the target TCI state comprises the first TCI state;

under the condition that the target uplink channel corresponds to the first identification information with different first TCI states, the terminal determines that the target TCI state comprises the original TCI state of the target uplink channel or determines that the target uplink channel stops transmitting;

the terminal determining that the target TCI state includes a TCI state of a PDCCH scheduling or triggering the target uplink channel.

In this embodiment, assuming that the target uplink channel is a PUSCH or UL RS resource, if the network side device only indicates 1 first TCI state, the target TCI state of the PUSCH or UL RS resource may be determined in the following manner:

scheme one: under the condition that the target uplink channel corresponds to the same first identification information as the first TCI state, the terminal determines that the target TCI state comprises the first TCI state; in the case that the target uplink channel corresponds to the first identification information different from the first TCI state, the determining, by the terminal, that the target TCI state includes an original TCI state of the target uplink channel or determining that the target uplink channel stops transmitting may be understood as: and determining whether to update the TCI state according to first identification information (such as a channel group, a CORESET group, a PUCCH resource group or a TRP ID) corresponding to the PUSCH or the UL RS resource. For example: when the PUSCH or UL RS resource corresponds to the same first identification information as the 1 first TCI state indicated by the network side device, the TCI state of the PUSCH or UL RS resource may be updated to the 1 first TCI state indicated by the network side device; when the PUSCH or UL RS resource corresponds to different first identification information corresponding to the 1 first TCI states indicated by the network side device, the TCI state of the PUSCH or UL RS resource may not be updated (i.e., the target TCI state of the PUSCH or UL RS resource is still the original TCI state of the PUSCH or UL RS resource), or the transmission may be stopped. That is, the 1 first TCI state indicated by the network side device may be used only for its associated channel group, CORESET group, PUCCH resource group, or TRP ID, and for other channel groups, CORESET group, PUCCH resource group, or channel and RS corresponding to TRP ID not associated with the 1 first TCI state indicated by the network side device, the TCI state update may not be performed, or the transmission may be stopped;

It should be noted that, the first scheme may also be applicable to determining the target TCI state of the PUCCH, which is not described herein.

The second scheme, the above-mentioned scheduling or triggering the TCI state of the PDCCH of the target uplink channel may be understood as: and using a TCI state of a PDCCH which schedules the PUSCH or triggers the UL RS resource. In an implementation, the TCI state of the PDCCH triggering the UL RS resource may be used in case the UL RS resource is a non-periodic resource.

In the embodiment, there is also a case that PUSCH or UL RS resources are originally transmitted using 2 TCI states, and the network side device only indicates 1 first TCI state, at this time, a transmission mode of the PUSCH or UL RS resources may be changed, for example: changing the transmission mode of the PUSCH or the UL RS resources from a repeated transmission mode requiring 2 TCI state transmission or a multi-beam simultaneous transmission mode to a single-beam transmission mode requiring only 1 TCI state transmission, or adopting the original 2 TCI states of the PUSCH or the UL RS resources, or adopting the original 1 TCI state of the PUSCH or the UL RS resources and the 1 first TCI state indicated by the network side equipment.

As an optional implementation manner, in a case where the number of the first TCI states is equal to 1, if the target uplink channel originally has at least two TCI states, the determining, by the terminal, the target TCI state of the target uplink channel according to the target information includes:

The terminal determines that the target TCI state is the first TCI state; or alternatively, the process may be performed,

the terminal determines that the target TCI state comprises at least two original TCI states of the target uplink channel; or alternatively, the process may be performed,

the terminal determines to update a fourth preset TCI state in at least two original TCI states of the target uplink channel into the first TCI state; the fourth preset TCI state corresponds to the same first identification information as the first TCI state; or the fourth preset TCI state is one of at least two original TCI states of the target uplink channel, which are arranged at preset positions, or the fourth preset TCI state is associated with the first TCI state.

In this embodiment, assuming that the target uplink channel is PUSCH or UL RS resource set, and the target uplink channel originally uses 2 TCI states for transmission, and the network side device only indicates 1 first TCI state, the network indicated 1 TCI state may be directly applied (i.e. changed to a single beam transmission mode), or the fourth preset TCI state in the target uplink channel is updated to the network indicated 1 TCI state, or the TCI state is not updated (i.e. the original 1 TCI state transmission using PUSCH or UL RS resource is continuously used).

Similar to the third preset TCI state, the fourth preset TCI state may correspond to the same first identification information (e.g., a channel group, a CORESET group, a PUCCH resource group, or a TRP ID) as the 1 first TCI state indicated by the network side device, or the fourth preset TCI state may be one of the 2 TCI states that are originally used by the target uplink channel and arranged at a preset position (e.g., the first bit), or the fourth preset TCI state may be associated with the 1 first TCI state indicated by the network side device.

Optionally, in the case that the type of the target uplink channel is UL RS resources or a resource set, the determining, by the terminal, that the target TCI state is the first TCI state includes:

the terminal determines that a target TCI state of UL RS resources associated with the first TCI state or all RS resources in a resource set comprises the first TCI state; or alternatively

The terminal determines that the target TCI state of all RS resources in the UL RS resources or the resource set of the first identification information corresponding to the first TCI state comprises the first TCI state.

In this embodiment, for UL RS resources or resource sets, only the TCI states of UL RS resources or all RS resources in the resource sets having an association relationship with the 1 first TCI states indicated by the network side device are updated.

As an alternative embodiment, in a case where the transmission mode of the target uplink channel is a repeated transmission mode, or the type of the target uplink channel is PUSCH or UL RS resources and the target DCI scheduling the target uplink channel simultaneously schedules at least two PUSCHs or at least two UL RS resources;

after the terminal obtains the public beam information indicated by the network side equipment, the method further comprises the following steps:

the terminal sends first feedback information to the network side equipment at a first moment, wherein the first feedback information is used for indicating that the terminal correctly receives the public beam information;

and the terminal determines that the repeated transmission of the target uplink channel on a time slot after a second time or the PUSCH or UL RS resource scheduled by the target DCI on the time slot after the second time is transmitted by using the public beam information, wherein the time difference between the second time and the first time is a first preset duration, and the second time is later than the first time.

The second time may be a time point when the common beam information takes effect, in other words, the first preset time period may be a preset time period or a time period configured by the network side device, which specifically may include a time period between a time when the first feedback information is sent to the network side device by the terminal and a time when the network side device and the terminal begin to apply the common beam information, so that the terminal may default that the common beam information takes effect after sending the first feedback information by a first preset time period. Correspondingly, after receiving the first feedback information fed back by the terminal, the network side device can confirm that the terminal has correctly received the public beam information based on the first feedback information, and can default that the public beam information is effective after receiving the first feedback information for a first preset time.

In implementation, if the channel or reference signal corresponding to the common beam information is a channel or signal that is repeatedly transmitted, or a plurality of PUSCHs scheduled for one DCI, for example: the common beam information may be used by a PUCCH repetition, PUSCH repetition, multi-slot PUSCH, multiple PUSCHs scheduled by a single DCI, etc., repeated transmission of a channel or signal transmitted on a slot after a first preset duration from a transmission time of the first feedback information, or a part of PUSCHs in at least two PUSCHs scheduled by the one DCI. That is, the various channels are all transmitted across multiple slots, and when a slot of the multiple slots is just the effective time of the common beam information, the channels are transmitted using the common beam information newly indicated by the network among slots that are located after the effective time. For example: assuming that the transmission mode of the target uplink channel is a repeated transmission mode, and the 4 repeated transmissions thereof correspond to the time slot 1, the time slot 2, the time slot 3 and the time slot 4, respectively, and the effective time of the common beam information is the time slot 3, the target uplink channel can use the common beam information (i.e. the first TCI state) in the time slot 3 and the time slot 4, and use the original beam information (i.e. the original TCI state) of the target uplink channel in the time slot 1 and the time slot 2.

Note that, the above-mentioned first feedback information may specifically refer to Acknowledgement (ACK) information of receiving the common beam information, and in a case where the terminal sends negative Acknowledgement (Negative Acknowledgement, NACK) information of receiving the common beam information, the terminal and the network side device may determine that the common beam information is not valid.

In implementation, if the transmission mode of the target uplink channel is a repeated transmission mode, multiple repeated transmissions of the target uplink channel may span multiple time slots; alternatively, if at least two PUSCHs are scheduled by one DCI, the at least two PUSCHs may be transmitted in different slots. In this way, there is a possibility that the effective time of the common beam information is located within a plurality of time slots spanned by the target uplink channel, and in this embodiment, the common beam information can be used to transmit a part of repeated transmission of the target uplink channel or a part of PUSCH scheduled by one DCI immediately after the common beam information is effective.

In the embodiment of the application, for R17 unified TCI framework to be applied to mTRP scene, how to apply to repetition, SFN and PUCCH, PUSCH, UL RS resources and UL RS resource sets of conventional single beam transmission when network side equipment indicates 1 or more joint/separation TCI states is designed. The scheme of unified TCI framework can be applied in the multi-TRP scene, and the beam information of the uplink channel, the UL RS resource or the UL RS resource set in various transmission modes is determined according to the public beam information indicated by the network side equipment, so that the understanding consistency of the used beams between the network side equipment and the terminal is ensured.

Referring to fig. 3, another uplink TCI state determining method provided in the embodiment of the present application is the greatest difference between the method embodiment of fig. 2 and the method embodiment of fig. 2 in that the execution subject of the method embodiment of fig. 2 is a terminal, and the execution subject of the method embodiment of fig. 3 is a network side device, and each step executed by the network side device is the same as or corresponds to each step executed by the terminal in the method embodiment of fig. 2, so that each explanation and explanation in the method embodiment of fig. 3 may refer to the corresponding explanation in the method embodiment of fig. 2, and will not be repeated herein.

As shown in fig. 3, the method for determining the uplink TCI state applicable to the network side device may include the following steps:

in step 301, the network side device indicates public beam information to the terminal, where the public beam information includes N first transmission configuration indication TCI states, where the first TCI states are joint TCI states or independent uplink UL TCI states, and N is an integer greater than or equal to 1.

Step 302, the network side device determines a target TCI state of a target uplink channel according to the target information. Wherein the target information includes at least one of:

The number of first TCI states;

the arrangement order or position of the first TCI state;

the type of the target uplink channel;

a transmission mode of the target uplink channel;

wherein the first identification information includes at least one of:

control resource set CORESET identification information;

CORESET Chi Biaoshi coresetpoillindex;

transmitting receiving point TRP identification ID information;

channel group identification information;

CORESET group identification information;

Optionally, in the case that the target information includes the number of the first TCI states, the network side device determines, according to the target information, a target TCI state of a target uplink channel, including:

if the number of the first TCI states is one, the network side device determines that the transmission mode of the target uplink channel is single-beam transmission; or alternatively, the process may be performed,

If the number of the first TCI states is at least two under the condition that the terminal adopts single-beam transmission, the network side device determines that the transmission mode of the target uplink channel is a single-beam transmission mode or a repeated transmission mode or a multi-beam simultaneous transmission mode; or alternatively, the process may be performed,

if the number of the first TCI states is one, the network side device determines that the transmission mode of the target uplink channel is a single-beam transmission mode or a mode of the repeated transmission mode or the multi-beam simultaneous transmission; or alternatively, the process may be performed,

and under the condition that the terminal adopts a repeated transmission mode or a multi-beam simultaneous transmission mode, if the number of the first TCI states is at least two, the network side equipment determines that the transmission mode of the target uplink channel is the repeated transmission mode or the multi-beam simultaneous transmission mode.

Optionally, in a case that the number of the first TCI states is greater than K, K is the number of TCI states required by the target uplink channel, and the network side device determines, based on the first TCI state, a target TCI state of the target uplink channel, including:

The network side equipment determines K first TCI states arranged at preset positions as target TCI states of a target uplink channel; or alternatively, the process may be performed,

the network side equipment determines K first TCI states as the target TCI states from all the first TCI states, and sends first indication information to the terminal, wherein the first indication information is used for indicating the K first TCI states.

Optionally, the first indication information is carried in a first signaling domain, where the first signaling domain is a signaling domain in CE signaling or DCI signaling of a media access control MAC control unit.

Optionally, in the case that the target uplink channel has M TCI states, if the number of the first TCI states is at least M, the target TCI state is at least M first TCI states, and M is an integer greater than or equal to 2; or alternatively, the process may be performed,

Optionally, the target information further includes a transmission mode of the target uplink channel, where the transmission mode includes: a preset transmission mode, a repeated transmission mode, a multi-beam simultaneous transmission mode or a transmission mode in which the preset transmission mode, the repeated transmission mode and the multi-beam simultaneous transmission mode are dynamically switched, wherein the preset transmission mode is single-beam transmission of non-repeated transmission;

the network side equipment determines a target TCI state of a target uplink channel according to target information, and the method comprises the following steps:

the network side equipment determines a target TCI state of the target uplink channel from the first TCI state according to the transmission mode of the target uplink channel;

the method further comprises the steps of:

and the network side equipment sends second indication information to the terminal, wherein the second indication information is used for indicating the transmission mode of the target uplink channel.

Optionally, the type of the target uplink channel includes at least one of: physical uplink control channel PUCCH and physical uplink shared channel PUSCH, UL reference signal RS resource.

Optionally, the PUCCH includes at least one of:

any PUCCH;

presetting Physical Downlink Control Channel (PDCCH) scheduling or associated PUCCH;

terminal-specific PUCCH;

and/or the number of the groups of groups,

the PUSCH includes at least one of:

any PUSCH;

presetting PDCCH scheduling or an associated PUSCH;

dynamically scheduled PUSCH;

terminal-specific PUSCH;

the authorized PUSCH is configured.

Optionally, the preset PDCCH includes at least one of the following:

all PDCCHs, PDCCHs on the terminal-specific control resource set CORESET, PDCCHs on CORESET only associated with the terminal-specific search space USS, PDCCHs on CORESET associated with the USS and the common search space CSS, PDCCHs on CORESET only associated with the CSS, PDCCHs on CORESET other than CORESET#0.

Optionally, in the case that the number of the first TCI states is greater than 1:

the target TCI state includes at least one of:

all first TCI states;

A first TCI state identical to a TCI state of a first PDCCH, wherein the first PDCCH is used for scheduling or triggering the target uplink channel transmission; or the first PDCCH is used for scheduling a target PDSCH, and feedback information of the target PDSCH is carried by the target uplink channel; or the first PDCCH is associated with the target uplink channel;

the target TCI state comprises a first TCI state corresponding to the first identification information associated with the target uplink channel;

the target TCI state comprises a first TCI state of each repeated transmission of the target uplink channel, wherein the first TCI state of each repeated transmission of the target uplink channel corresponds to different first identification information respectively;

at least one first TCI state corresponding to the one first identification information, wherein the target uplink channel is associated with the one first identification information;

Optionally, the preset correspondence relationship includes:

Optionally, if the number of the first TCI states is greater than 1, if the transmission mode of the target uplink channel is a preset transmission mode, the target TCI state includes a first preset TCI state, where the first preset TCI state includes at least one of the following:

the first TCI states arranged at preset positions in all the first TCI states;

a first TCI state corresponding to the preset first identification information;

Optionally, if the number of the first TCI states is greater than 1, if the time domain behavior of the target uplink channel is periodic uplink channel or the time domain behavior of the carried information is periodic information, the target TCI state includes at least one of the following:

other TCI states except the first TCI state in the TCI state pool or the original TCI state of the target uplink channel; or alternatively, the process may be performed,

A first TCI state corresponding to the first identification information associated with the target uplink channel; or alternatively, the process may be performed,

presetting a first TCI state; or alternatively, the process may be performed,

a first TCI state indicated by third indication information from the network side device; or alternatively, the process may be performed,

a second preset TCI state;

wherein the second preset TCI state includes at least one of:

the first TCI states arranged at preset positions in all the first TCI states;

Optionally, if the type of the target uplink channel is PUSCH or UL RS resource set, if the number of the first TCI states is greater than 1, the target TCI states include at least one of the following:

a first TCI state corresponding to the preset first identification information;

the first TCI state is the same as the TCI state of the PDCCH repeatedly transmitted or multi-beam simultaneously transmitted, or at least one of the first TCI states used for PDCCH repeatedly transmitted or multi-beam simultaneously transmitted.

Optionally, in the case that the number of the first TCI states is greater than 1, if the type of the target uplink channel is PUSCH configured with uplink configuration grant type 1, the target TCI state includes at least one of the following:

all the first TCI states are arranged in a first TCI state preset at a preset position;

Optionally, if the number of the first TCI states is greater than 1, if the type of the target uplink channel is UL RS resources or resource sets, the target TCI states include:

a first TCI state associated with the same first identification information as the UL RS resource or resource set;

a first TCI state identical to a TCI state of a PDCCH triggering the UL RS resource or resource set;

and a first TCI state corresponding to the UL RS resources or resource sets, wherein each UL RS resource or resource set has a respective corresponding TCI state.

Optionally, if the number of the first TCI states is equal to 1, if the transmission mode of the target uplink channel is a repeated transmission mode or a mode of multi-beam simultaneous transmission, the network side device determines, according to the target information, a target TCI state of the target uplink channel, including at least one of the following:

The network side equipment determines that the configuration of the repeated transmission mode or the multi-beam simultaneous transmission mode of the target uplink channel fails;

the network side equipment determines that the target uplink channel is transmitted based on the first TCI state;

the network side equipment determines that the target TCI state comprises at least two original TCI states of the target uplink channel;

the network side equipment determines to update a third preset TCI state in at least two original TCI states of the target uplink channel into the first TCI state; the third preset TCI state corresponds to the same first identification information as the first TCI state; or the third preset TCI state is one of at least two original TCI states of the target uplink channel, which is located at a preset position; or the third preset TCI state is associated with the first TCI state.

Optionally, in the case that the number of the first TCI states is equal to 1, the network side device determines, according to the target information, a target TCI state of a target uplink channel, including at least one of the following:

under the condition that the target uplink channel corresponds to the same first identification information as the first TCI state, the network side equipment determines that the target TCI state comprises the first TCI state;

Under the condition that the target uplink channel corresponds to the first identification information with different first TCI states, the network side equipment determines that the target TCI state comprises the original TCI state of the target uplink channel or determines that the PUSCH or the UL RS stops transmitting;

the network side equipment determines that the target TCI state comprises a TCI state of a PDCCH of the target uplink channel;

or alternatively, the process may be performed,

if the number of the first TCI states is equal to 1, if the target uplink channel originally has at least two TCI states, the network side device determines, according to target information, a target TCI state of the target uplink channel, including:

the network side equipment determines the target TCI state as the first TCI state; or alternatively, the process may be performed,

the network side equipment determines that the target TCI state comprises at least two original TCI states of the target uplink channel; or alternatively, the process may be performed,

the network side equipment determines that a fourth preset TCI state in at least two original TCI states of the target uplink channel is updated to be the first TCI state; the fourth preset TCI state corresponds to the same first identification information as the first TCI state; or the fourth preset TCI state is one of at least two original TCI states of the target uplink channel, which are arranged at preset positions, or the fourth preset TCI state is associated with the first TCI state.

Optionally, in the case that the type of the target uplink channel is UL RS resources or a resource set, the network side device determines that the target TCI state is the first TCI state, including:

the network side equipment determines that the target TCI state of the UL RS resources associated with the first TCI state or all RS resources in the resource set comprises the first TCI state; or alternatively

The network side device determines that the target TCI state of UL RS resources of the first identification information or all RS resources in the resource set corresponding to the first TCI state includes the first TCI state.

Optionally, in a case that the transmission mode of the target uplink channel is a repeated transmission mode, or the type of the target uplink channel is PUSCH or UL RS resources and the target DCI scheduling the target uplink channel schedules at least two PUSCHs or at least two UL RS resources simultaneously;

after the network side device obtains the public beam information indicated by the network side device from the terminal, the method further comprises the following steps:

the network side equipment receives first feedback information from the terminal at a second moment, wherein the first feedback information is used for indicating that the terminal correctly receives the public beam information;

The network side equipment configures the public beam information to take effect based on the first feedback information;

and the network side equipment determines that the common beam information is used for transmitting the repeated transmission of the target uplink channel on a time slot after a second time or the PUSCH or UL RS resources scheduled by the target DCI on the time slot after the second time, wherein the second time is the effective time of the common beam information.

In the embodiment of the application, a unified TCI framework scheme which can be applied in a mTRP scene is provided, so that R17 unified TCI framework can be applied to the mTRP scene, and a beam determination scheme which is applied to repetition, SFN, a PDCCH of conventional single beam transmission and other uplink channels and UL RS resources or UL RS resource sets is provided when network side equipment indicates 1 or more joint/separation TCI states, so that beam information of the uplink channels or UL RS resources or UL RS resource sets in various transmission modes is determined according to the unique TCI states (i.e., first TCI states) indicated by the network side equipment, and understanding consistency of used beams between the network side equipment and terminals is ensured.

According to the uplink TCI state determining method provided by the embodiment of the application, the execution main body can be an uplink TCI state determining device. In the embodiment of the present application, an uplink TCI state determining device executes an uplink TCI state determining method by using an uplink TCI state determining device as an example, which is described in the embodiment of the present application.

In one embodiment, if the uplink TCI state determining device is applied to a terminal, as shown in fig. 4, the uplink TCI state determining device 400 may include the following modules:

a first obtaining module 401, configured to obtain common beam information indicated by a network side device, where the common beam information includes N first transmission configuration indication TCI states, where the first TCI states are joint TCI states or independent uplink UL TCI states, and N is an integer greater than or equal to 1;

a first determining module 402, configured to determine a target TCI state of a target uplink channel according to target information, where the target information includes at least one of the following:

the number of first TCI states;

the arrangement order or position of the first TCI state;

the type of the target uplink channel;

a transmission mode of the target uplink channel;

wherein the first identification information includes at least one of:

Control resource set CORESET identification information;

CORESET Chi Biaoshi coresetpoillindex;

transmitting receiving point TRP identification ID information;

channel group identification information;

CORESET group identification information;

Optionally, in the case that the target information includes the number of the first TCI states, the first determining module 402 is specifically configured to:

if the number of the first TCI states is one under the condition that the terminal adopts single-beam transmission, determining that the transmission mode of the target uplink channel is single-beam transmission; or alternatively, the process may be performed,

if the number of the first TCI states is at least two under the condition that the terminal adopts single beam transmission, determining that the transmission mode of the target uplink channel is a single beam transmission or repeated transmission mode or a multi-beam simultaneous transmission mode; or alternatively, the process may be performed,

if the number of the first TCI states is one, determining that the transmission mode of the target uplink channel is a single-beam transmission mode or a mode of the repeated transmission mode or the multi-beam simultaneous transmission mode; or alternatively, the process may be performed,

and under the condition that the terminal adopts a repeated transmission mode or a multi-beam simultaneous transmission mode, if the number of the first TCI states is at least two, determining that the transmission mode of the target uplink channel is the repeated transmission mode or the multi-beam simultaneous transmission mode.

Optionally, in the case that the number of the first TCI states is greater than K, K is the number of TCI states required for the target uplink channel, and the first determining module 402 is specifically configured to:

determining K first TCI states arranged at preset positions as target TCI states of a target uplink channel; or alternatively, the process may be performed,

and determining a target TCI state of the target uplink channel according to the indication of first indication information from the network side equipment, wherein the first indication information is used for indicating K first TCI states.

Optionally, the first signaling domain is validated or exists when a preset condition is met, wherein the preset condition comprises at least one of the following:

the network side equipment configures the first signaling domain;

and at least one code point in TCI code points activated by the network side equipment through a Media Access Control (MAC) control unit (CE) corresponds to at least two TCI states.

Optionally, the uplink TCI state determining apparatus 400 further includes:

the first receiving module is configured to receive second indication information from a network side device, and determine a transmission mode of the target uplink channel according to the second indication information, where the transmission mode includes: the system comprises a preset transmission mode, a repeated transmission mode, a multi-beam simultaneous transmission mode or a transmission mode in which the preset transmission mode, the repeated transmission mode and the multi-beam simultaneous transmission mode are dynamically switched, wherein the preset transmission mode is single-beam transmission of non-repeated transmission.

Optionally, the second indication information is used to indicate the transmission mode, or the second indication information is used to indicate the number of the target TCI states.

Optionally, the type of the target uplink channel includes at least one of the following: physical uplink control channel PUCCH, physical uplink shared channel PUSCH, UL reference signal RS resources.

Optionally, the PUCCH includes at least one of:

any PUCCH;

terminal-specific PUCCH;

and/or the number of the groups of groups,

the PUSCH includes at least one of:

any PUSCH;

presetting PDCCH scheduling or an associated PUSCH;

dynamically scheduled PUSCH;

terminal-specific PUSCH;

the authorized PUSCH is configured.

Optionally, the preset PDCCH includes at least one of the following:

the target TCI state includes at least one of:

all first TCI states;

Optionally, the preset correspondence relationship includes:

the first TCI states arranged at preset positions in all the first TCI states;

a first TCI state corresponding to the preset first identification information;

a second preset TCI state;

wherein the second preset TCI state includes at least one of:

the first TCI states arranged at preset positions in all the first TCI states;

Optionally, the third indication information is located in configuration information of the target uplink channel.

Optionally, if the number of the first TCI states is greater than 1, if the type of the target uplink channel is PUSCH or UL RS resource set, the target TCI state includes at least one of the following:

a first TCI state corresponding to the preset first identification information;

Optionally, in the case that the transmission mode of the PDCCH in which the DCI indicating the first TCI state is located or the PDCCH for scheduling the target uplink channel is a repeated transmission mode or a mode of multi-beam simultaneous transmission, the target TCI state includes:

Optionally, if the type of the target uplink channel is PUSCH configured with uplink configuration grant type 1 if the number of the first TCI states is greater than 1, the target TCI states include at least one of the following:

Optionally, if the number of the first TCI states is equal to 1, if the transmission mode of the target uplink channel is a repeated transmission mode or a multi-beam simultaneous transmission mode, the first determining module 402 is specifically configured to perform at least one of the following:

Determining that the configuration of the repeated transmission mode or the multi-beam simultaneous transmission mode of the target uplink channel fails;

determining that the target uplink channel transmits based on the first TCI state;

determining that the target TCI state comprises at least two original TCI states of the target uplink channel;

determining to update a third preset TCI state in at least two original TCI states of the target uplink channel to be the first TCI state; the third preset TCI state corresponds to the same first identification information as the first TCI state; or the preset TCI state is one of at least two original TCI states of the target uplink channel, which is positioned at a preset position; or the third preset TCI state is associated with the first TCI state.

Optionally, in the case that the number of the first TCI states is equal to 1, the first determining module 402 is specifically configured to perform at least one of the following:

determining that the target TCI state includes the first TCI state under the condition that the target uplink channel corresponds to the same first identification information as the first TCI state;

under the condition that the target uplink channel corresponds to the first identification information with different first TCI states, determining that the target TCI state comprises an original TCI state of the target uplink channel or determining that the target uplink channel stops transmitting;

Determining the target TCI state comprises scheduling or triggering the TCI state of the PDCCH of the target uplink channel;

or alternatively, the process may be performed,

in the case where the number of the first TCI states is equal to 1, if the target uplink channel originally has at least two TCI states, the first determining module 402 is specifically configured to:

determining the target TCI state as the first TCI state; or alternatively, the process may be performed,

determining that the target TCI state comprises at least two original TCI states of the target uplink channel; or alternatively, the process may be performed,

determining to update a fourth preset TCI state in at least two original TCI states of the target uplink channel to be the first TCI state; the fourth preset TCI state corresponds to the same first identification information as the first TCI state; or the fourth preset TCI state is one of at least two original TCI states of the target uplink channel, which are arranged at preset positions, or the fourth preset TCI state is associated with the first TCI state.

Optionally, in the case that the type of the target uplink channel is UL RS resources or resource sets, the first determining module 402 is specifically configured to:

determining that a target TCI state of UL RS resources associated with the first TCI state or all RS resources in a resource set includes the first TCI state; or alternatively

Determining that the target TCI state of UL RS resources of the first identification information or all RS resources in a resource set corresponding to the first TCI state includes the first TCI state.

the uplink TCI state determining apparatus 400 further includes:

the second sending module is used for sending first feedback information to the network side equipment at a first moment, wherein the first feedback information is used for indicating that the terminal has correctly received the public beam information;

a third determining module, configured to determine that repeated transmission on a time slot after a second time of the target uplink channel or PUSCH or UL RS resources scheduled by the target DCI on the time slot after the second time use the common beam information to perform transmission, where a time difference between the second time and the first time is a first preset duration, and the second time is later than the first time.

The uplink TCI state determining apparatus 400 in the embodiment of the present application may be an electronic device, for example, an electronic device with an operating system, or may be a component in an electronic device, for example, an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices than a terminal. By way of example, terminals may include, but are not limited to, the types of terminals 11 listed above, other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., and embodiments of the application are not specifically limited.

The uplink TCI state determining apparatus 400 provided in the embodiment of the present application can execute each step executed by the terminal in the embodiment of the method shown in fig. 2, and can obtain the same beneficial effects, and for avoiding repetition, the description is omitted herein.

In another embodiment, if the uplink TCI state determining apparatus is applied to the network side device, as shown in fig. 5, the uplink TCI state determining apparatus 500 may include the following modules:

an indication module 501, configured to indicate common beam information to a terminal, where the common beam information includes N first transmission configuration indication TCI states, where the first TCI states are joint TCI states or independent uplink UL TCI states, and N is an integer greater than or equal to 1;

a second determining module 502, configured to determine a target TCI state of the target uplink channel according to target information, where the target information includes at least one of the following:

the number of first TCI states;

the arrangement order or position of the first TCI state;

the type of the target uplink channel;

a transmission mode of the target uplink channel;

wherein the first identification information includes at least one of:

control resource set CORESET identification information;

CORESET Chi Biaoshi coresetpoillindex;

transmitting receiving point TRP identification ID information;

channel group identification information;

CORESET group identification information;

Optionally, in the case that the target information includes the number of the first TCI states, the second determining module 502 is specifically configured to:

if the number of the first TCI states is one, determining that the transmission mode of the target uplink channel is single-beam transmission; or alternatively, the process may be performed,

if the number of the first TCI states is at least two under the condition that the terminal adopts single beam transmission, determining that the transmission mode of the target uplink channel is a single beam transmission mode or a repeated transmission mode or a multi-beam simultaneous transmission mode; or alternatively, the process may be performed,

Optionally, in the case where the number of the first TCI states is greater than K, K is the number of TCI states required for the target uplink channel, the second determining module 502 includes:

a first determining unit, configured to determine that K first TCI states arranged at a preset position are target TCI states of a target uplink channel; or alternatively, the process may be performed,

the second determining unit is used for determining K first TCI states as the target TCI states from all the first TCI states and sending first indicating information to the terminal, wherein the first indicating information is used for indicating the K first TCI states.

the second determining module 502 is specifically configured to:

determining a target TCI state of the target uplink channel from the first TCI states according to the transmission mode of the target uplink channel;

The uplink TCI state determining apparatus 500 further includes:

and the first sending module is used for sending second indicating information to the terminal, wherein the second indicating information is used for indicating the transmission mode of the target uplink channel.

Optionally, the type of the target uplink channel includes at least one of the following: physical uplink control channel PUCCH and physical uplink shared channel PUSCH, UL reference signal RS resource.

Optionally, the PUCCH includes at least one of:

any PUCCH;

terminal-specific PUCCH;

and/or the number of the groups of groups,

the PUSCH includes at least one of:

any PUSCH;

presetting PDCCH scheduling or an associated PUSCH;

dynamically scheduled PUSCH;

terminal-specific PUSCH;

the authorized PUSCH is configured.

Optionally, the preset PDCCH includes at least one of the following:

The target TCI state includes at least one of:

all first TCI states;

Optionally, the preset correspondence relationship includes:

the first TCI states arranged at preset positions in all the first TCI states;

a first TCI state corresponding to the preset first identification information;

Optionally, if the number of the first TCI states is greater than 1 and the time domain behavior of the target uplink channel is periodic uplink channel or the time domain behavior of the carried information is periodic information, the target TCI state includes at least one of the following:

presetting a first TCI state; or alternatively, the process may be performed,

a second preset TCI state;

wherein the second preset TCI state includes at least one of:

the first TCI states arranged at preset positions in all the first TCI states;

a first TCI state corresponding to the preset first identification information;

Optionally, if the number of the first TCI states is equal to 1, if the transmission mode of the target uplink channel is a repeated transmission mode or a multi-beam simultaneous transmission mode, the second determining module 502 is specifically configured to execute at least one of the following:

determining to update a third preset TCI state in at least two original TCI states of the target uplink channel to be the first TCI state; the third preset TCI state corresponds to the same first identification information as the first TCI state; or the third preset TCI state is one of at least two original TCI states of the target uplink channel, which is located at a preset position; or the third preset TCI state is associated with the first TCI state.

Optionally, in the case that the number of the first TCI states is equal to 1, the second determining module 502 is specifically configured to perform at least one of the following:

under the condition that the target uplink channel corresponds to the first identification information with different first TCI states, determining that the target TCI state comprises an original TCI state of the target uplink channel or determining that the PUSCH or the UL RS stops transmitting;

or alternatively, the process may be performed,

in the case where the number of the first TCI states is equal to 1, if the target uplink channel originally has at least two TCI states, the second determining module 502 is specifically configured to:

the uplink TCI state determining apparatus 500 further includes:

the second receiving module is used for receiving first feedback information from the terminal at a second moment, wherein the first feedback information is used for indicating that the terminal has correctly received the public beam information;

the configuration module is used for configuring the public beam information to take effect based on the first feedback information;

a fourth determining module, configured to determine that repeated transmission on a time slot after a second time of the target uplink channel or PUSCH or UL RS resources scheduled by the target DCI on the time slot after the second time use the common beam information to transmit, where the second time is an effective time of the common beam information.

The uplink TCI state determining apparatus 500 in the embodiment of the present application may be an electronic device, for example, an electronic device with an operating system, or may be a component in an electronic device, for example, an integrated circuit or a chip. The electronic device may be a network-side device, or may be other devices other than a network-side device. By way of example, the network-side devices may include, but are not limited to, the types of network-side devices 12 listed above, and the other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., and embodiments of the present application are not limited in detail.

The uplink TCI state determining device 500 provided in the embodiment of the present application can execute each step executed by the terminal in the embodiment of the method shown in fig. 3, and can obtain the same beneficial effects, so that repetition is avoided, and detailed description is omitted here.

Optionally, as shown in fig. 6, the embodiment of the present application further provides a communication device 600, including a processor 601 and a memory 602, where the memory 602 stores a program or an instruction that can be executed on the processor 601, for example, when the communication device 600 is a terminal, the program or the instruction is executed by the processor 601 to implement the steps of the embodiment of the uplink TCI status determining method shown in fig. 2 or fig. 3, and the same technical effects can be achieved. When the communication device 600 is a terminal, the program or instructions, when executed by the processor 601, implement the steps of the method embodiment shown in fig. 2; when the communication device 600 is a network side device, the program or the instructions implement the steps of the method embodiment shown in fig. 3 when executed by the processor 601, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.

The embodiment of the application also provides a terminal, which comprises a processor and a communication interface, wherein the communication interface is used for acquiring public beam information indicated by network side equipment, the public beam information comprises N first transmission configuration indication TCI states, the first TCI states are joint TCI states or independent uplink UL TCI states, and N is an integer greater than or equal to 1; the processor is configured to determine a target TCI state of a target uplink channel according to target information, where the target information includes at least one of:

the number of first TCI states;

the arrangement order or position of the first TCI state;

the type of the target uplink channel;

a transmission mode of the target uplink channel;

wherein the first identification information includes at least one of:

control resource set CORESET identification information;

CORESET Chi Biaoshi coresetpoillindex;

transmitting receiving point TRP identification ID information;

channel group identification information;

CORESET group identification information;

The terminal embodiment corresponds to the terminal-side method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the terminal embodiment, and the same technical effects can be achieved. Specifically, fig. 7 is a schematic diagram of a hardware structure of a terminal for implementing an embodiment of the present application.

The terminal 700 includes, but is not limited to: at least some of the components of the radio frequency unit 701, the network module 702, the audio output unit 703, the input unit 704, the sensor 705, the display unit 706, the user input unit 707, the interface unit 708, the memory 709, and the processor 710.

Those skilled in the art will appreciate that the terminal 700 may further include a power source (e.g., a battery) for powering the various components, and that the power source may be logically coupled to the processor 710 via a power management system so as to perform functions such as managing charging, discharging, and power consumption via the power management system. The terminal structure shown in fig. 7 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine certain components, or may be arranged in different components, which will not be described in detail herein.

It should be appreciated that in embodiments of the present application, the input unit 704 may include a graphics processing unit (Graphics Processing Unit, GPU) 7041 and a microphone 7042, with the graphics processor 7041 processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 707 includes at least one of a touch panel 7071 and other input devices 7072. The touch panel 7071 is also referred to as a touch screen. The touch panel 7071 may include two parts, a touch detection device and a touch controller. Other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.

In the embodiment of the present application, after receiving downlink data from a network side device, the radio frequency unit 701 may transmit the downlink data to the processor 710 for processing; in addition, the radio frequency unit 701 may send uplink data to the network side device. Typically, the radio unit 701 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 709 may be used to store software programs or instructions and various data. The memory 709 may mainly include a first storage area storing programs or instructions and a second storage area storing data, wherein the first storage area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, the memory 709 may include volatile memory or nonvolatile memory, or the memory 709 may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM), static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (ddr SDRAM), enhanced SDRAM (Enhanced SDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DRRAM). Memory 709 in embodiments of the application includes, but is not limited to, these and any other suitable types of memory.

Processor 710 may include one or more processing units; optionally, processor 710 integrates an application processor that primarily processes operations involving an operating system, user interface, application programs, and the like, and a modem processor that primarily processes wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 710.

The radio frequency unit 701 is configured to obtain common beam information indicated by a network side device, where the common beam information includes N first transmission configuration indication TCI states, where the first TCI states are joint TCI states or independent uplink UL TCI states, and N is an integer greater than or equal to 1;

a processor 710, configured to determine a target TCI state of a target uplink channel according to target information, where the target information includes at least one of:

the number of first TCI states;

the arrangement order or position of the first TCI state;

the type of the target uplink channel;

a transmission mode of the target uplink channel;

wherein the first identification information includes at least one of:

control resource set CORESET identification information;

CORESET Chi Biaoshi coresetpoillindex;

transmitting receiving point TRP identification ID information;

channel group identification information;

CORESET group identification information;

Optionally, in the case that the target information includes the number of the first TCI states, the determining, by the processor 710, the target TCI state of the target uplink channel according to the target information includes:

Optionally, in the case that the number of the first TCI states is greater than K, K is the number of TCI states required for the target uplink channel, the determining, by the processor 710, the target TCI state of the target uplink channel according to the target information includes:

Optionally, the first signaling domain is validated or exists when a preset condition is met, the preset condition including at least one of:

The network side equipment configures the first signaling domain;

Optionally, before the processor 710 performs the determining, according to the target information, the target TCI state of the target uplink channel:

The radio frequency unit 701 is further configured to receive second indication information from the network side device;

the processor 710 is further configured to determine a transmission mode of the target uplink channel according to the second indication information, where the transmission mode includes: the system comprises a preset transmission mode, a repeated transmission mode, a multi-beam simultaneous transmission mode or a transmission mode in which the preset transmission mode, the repeated transmission mode and the multi-beam simultaneous transmission mode are dynamically switched, wherein the preset transmission mode is single-beam transmission of non-repeated transmission.

Optionally, the type of the target uplink channel includes at least one of: physical uplink control channel PUCCH, physical uplink shared channel PUSCH, UL reference signal RS resources.

Optionally, the PUCCH includes at least one of:

any PUCCH;

terminal-specific PUCCH;

and/or the number of the groups of groups,

the PUSCH includes at least one of:

any PUSCH;

presetting PDCCH scheduling or an associated PUSCH;

Dynamically scheduled PUSCH;

terminal-specific PUSCH;

the authorized PUSCH is configured.

Optionally, the preset PDCCH includes at least one of the following:

the target TCI state includes at least one of:

all first TCI states;

Optionally, the preset correspondence relationship includes:

The first TCI states arranged at preset positions in all the first TCI states;

a first TCI state corresponding to the preset first identification information;

a second preset TCI state;

wherein the second preset TCI state includes at least one of:

the first TCI states arranged at preset positions in all the first TCI states;

a first TCI state corresponding to the preset first identification information;

2 optionally, if the number of the first TCI states is greater than 1, if the type of the target uplink channel is UL RS resources or resource sets, the target TCI states include:

Optionally, if the number of the first TCI states is equal to 1, if the transmission mode of the target uplink channel is a repeated transmission mode or a multi-beam simultaneous transmission mode, the determining, by the processor 710, the target TCI state of the target uplink channel according to the target information includes at least one of the following:

Optionally, in the case that the number of the first TCI states is equal to 1, the determining, by the processor 710, the target TCI state of the target uplink channel according to the target information includes at least one of:

or alternatively, the process may be performed,

if the number of the first TCI states is equal to 1, if the target uplink channel originally has at least two TCI states, determining, by the processor 710, the target TCI state of the target uplink channel according to the target information includes:

Optionally, in a case that the type of the target uplink channel is UL RS resources or resource sets, the determining, performed by the processor 710, that the target TCI state is the first TCI state includes:

The radio frequency unit 701 is further configured to send first feedback information to the network side device at a first moment after the common beam information indicated by the network side device is acquired, where the first feedback information is used to indicate that the terminal has correctly received the common beam information;

the processor 710 is further configured to determine that a repeated transmission on a time slot after a second time of the target uplink channel or a PUSCH or UL RS resource scheduled by the target DCI on the time slot after the second time is transmitted using the common beam information, where a time difference between the second time and the first time is a first preset duration, and the second time is later than the first time.

The terminal 700 provided in the embodiment of the present application can implement each process executed by the uplink TCI state determining device 400 shown in fig. 4, and can obtain the same beneficial effects, and for avoiding repetition, the description is omitted herein.

The embodiment of the application also provides network side equipment, which comprises a processor and a communication interface, wherein the processor is used for indicating public beam information to a terminal, the public beam information comprises N first transmission configuration indication TCI states, the first TCI states are joint TCI states or independent uplink UL TCI states, and N is an integer greater than or equal to 1; the processor is configured to determine a target TCI state of the target uplink channel according to target information, where the target information includes at least one of:

The number of first TCI states;

the arrangement order or position of the first TCI state;

the type of the target uplink channel;

a transmission mode of the target uplink channel;

wherein the first identification information includes at least one of:

control resource set CORESET identification information;

CORESET Chi Biaoshi coresetpoillindex;

transmitting receiving point TRP identification ID information;

channel group identification information;

CORESET group identification information;

The network side device embodiment corresponds to the network side device method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the network side device embodiment, and the same technical effects can be achieved.

Specifically, the embodiment of the application also provides network side equipment. As shown in fig. 8, the network side device 800 includes: an antenna 801, a radio frequency device 802, a baseband device 803, a processor 804, and a memory 805. The antenna 801 is connected to a radio frequency device 802. In the uplink direction, the radio frequency device 802 receives information via the antenna 801, and transmits the received information to the baseband device 803 for processing. In the downlink direction, the baseband device 803 processes information to be transmitted, and transmits the processed information to the radio frequency device 802, and the radio frequency device 802 processes the received information and transmits the processed information through the antenna 801.

The method performed by the network side device in the above embodiment may be implemented in the baseband apparatus 803, where the baseband apparatus 803 includes a baseband processor.

The baseband device 803 may, for example, comprise at least one baseband board, on which a plurality of chips are disposed, as shown in fig. 8, where one chip, for example, a baseband processor, is connected to the memory 805 through a bus interface, so as to invoke a program in the memory 805 to perform the network device operation shown in the above method embodiment.

The network side device may also include a network interface 806, such as a common public radio interface (common public radio interface, CPRI).

Specifically, the network side device 800 of the embodiment of the present application further includes: instructions or programs stored in the memory 805 and executable on the processor 804, the processor 804 invokes the instructions or programs in the memory 805 to perform the methods performed by the modules shown in fig. 5 and achieve the same technical effects, and are not described herein in detail to avoid repetition.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the embodiment of the uplink TCI state determining method shown in fig. 2 or fig. 3, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.

Wherein the processor is a processor in the terminal described in the above embodiment. The readable storage medium includes computer readable storage medium such as computer readable memory ROM, random access memory RAM, magnetic or optical disk, etc.

The embodiment of the application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used for running a program or an instruction, so as to implement each process of the uplink TCI state determining method embodiment shown in fig. 2 or fig. 3, and achieve the same technical effect, so that repetition is avoided, and no further description is provided herein.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

The embodiments of the present application further provide a computer program/program product stored in a storage medium, where the computer program/program product is executed by at least one processor to implement the respective processes of the uplink TCI state determining method embodiment shown in fig. 2 or fig. 3, and achieve the same technical effects, and for avoiding repetition, a detailed description is omitted herein.

The embodiment of the application also provides a wireless communication system, which comprises: the terminal can be used for executing the steps of the uplink TCI state determining method shown in fig. 2, and the network side device can be used for executing the steps of the uplink TCI state determining method shown in fig. 3.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.

Claims

1. The method for determining the uplink TCI state is characterized by comprising the following steps:

the number of first TCI states;

the arrangement order or position of the first TCI state;

the type of the target uplink channel;

a transmission mode of the target uplink channel;

wherein the first identification information includes at least one of:

control resource set CORESET identification information;

CORESET Chi Biaoshi coresetpoillindex;

Transmitting receiving point TRP identification ID information;

channel group identification information;

CORESET group identification information;

2. The method according to claim 1, wherein in case the target information comprises the number of the first TCI states, the terminal determines a target TCI state of a target uplink channel according to the target information, comprising:

if the number of the first TCI states is one, the terminal determines that the transmission mode of the target uplink channel is single-beam transmission; or alternatively, the process may be performed,

if the number of the first TCI states is at least two under the condition that the terminal adopts single beam transmission, the terminal determines that the transmission mode of the target uplink channel is a single beam transmission or repeated transmission mode or a multi-beam simultaneous transmission mode; or alternatively, the process may be performed,

if the number of the first TCI states is one, the terminal determines that the transmission mode of the target uplink channel is a single-beam transmission mode or a mode of the repeated transmission mode or the multi-beam simultaneous transmission; or alternatively, the process may be performed,

And under the condition that the terminal adopts a repeated transmission mode or a multi-beam simultaneous transmission mode, if the number of the first TCI states is at least two, the terminal determines that the transmission mode of the target uplink channel is the repeated transmission mode or the multi-beam simultaneous transmission mode.

3. The method according to claim 1, wherein in the case where the number of the first TCI states is greater than K, K is the number of TCI states required for the target uplink channel, the terminal determines the target TCI state of the target uplink channel according to the target information, including:

4. The method of claim 3, wherein the first indication information is carried in a first signaling domain, the first signaling domain being a signaling domain in a medium access control MAC control element CE signaling or a DCI signaling.

5. The method of claim 4, wherein the first signaling domain is validated or present when a preset condition is met, the preset condition comprising at least one of:

the network side equipment configures the first signaling domain;

6. The method according to any one of claims 1 to 5, characterized in that:

if the number of the first TCI states is at least M in the case that the target uplink channel has M TCI states, the target TCI state is at least M first TCI states, and M is an integer greater than or equal to 2; or alternatively, the process may be performed,

7. The method according to any one of claims 1 to 5, characterized in that before the terminal determines the target TCI state of the target uplink channel from the target information, the method further comprises:

8. The method of claim 7, wherein the second indication information is used to indicate the transmission mode or the second indication information is used to indicate the number of target TCI states.

9. The method according to any one of claims 1 to 5, wherein the type of the target uplink channel comprises at least one of: physical uplink control channel PUCCH, physical uplink shared channel PUSCH, UL reference signal RS resources.

10. The method according to claim 9, wherein:

the PUCCH includes at least one of:

any PUCCH;

terminal-specific PUCCH;

and/or the number of the groups of groups,

the PUSCH includes at least one of:

any PUSCH;

presetting PDCCH scheduling or an associated PUSCH;

dynamically scheduled PUSCH;

terminal-specific PUSCH;

the authorized PUSCH is configured.

11. The method of claim 10, wherein the preset PDCCH comprises at least one of:

12. The method of claim 1, wherein in the event that the number of first TCI states is greater than 1:

the target TCI state includes at least one of:

all first TCI states;

13. The method of claim 12, wherein the preset correspondence comprises:

14. The method of claim 1, wherein if the number of the first TCI states is greater than 1, the target TCI state includes a first preset TCI state if the transmission mode of the target uplink channel is a preset transmission mode, wherein the first preset TCI state includes at least one of:

the first TCI states arranged at preset positions in all the first TCI states;

a first TCI state corresponding to the preset first identification information;

15. The method according to claim 1, wherein in case the time domain behaviour of the target uplink channel is a periodic uplink channel or the time domain behaviour of the carried information is periodic information, the target TCI state comprises at least one of:

a second preset TCI state;

wherein the second preset TCI state includes at least one of:

the first TCI states arranged at preset positions in all the first TCI states;

16. The method of claim 15, wherein the third indication information is located in configuration information of the target uplink channel.

17. The method of claim 1, wherein if the type of the target uplink channel is PUSCH or UL RS resource set if the number of the first TCI states is greater than 1, the target TCI states include at least one of:

a first TCI state corresponding to the preset first identification information;

18. The method of claim 17, wherein in a case where a transmission mode of a PDCCH in which DCI indicating the first TCI state is located or a PDCCH scheduling the target uplink channel is a repeated transmission mode or a multi-beam simultaneous transmission mode, the target TCI state includes:

19. The method according to claim 1, wherein in case the number of the first TCI states is greater than 1, if the type of the target uplink channel is PUSCH configured with uplink configuration grant type 1, the target TCI states include at least one of:

20. The method of claim 1, wherein if the type of the target uplink channel is UL RS resources or resource sets if the number of the first TCI states is greater than 1, the target TCI states include:

21. The method according to claim 1, wherein, in the case where the number of the first TCI states is equal to 1, if the transmission mode of the target uplink channel is a repeated transmission mode or a multi-beam simultaneous transmission mode, the terminal determines the target TCI state of the target uplink channel according to the target information, including at least one of:

the terminal determines that the configuration of the repeated transmission mode or the multi-beam simultaneous transmission mode of the target uplink channel fails;

22. The method according to claim 1, wherein in case the number of the first TCI states is equal to 1, the terminal determines a target TCI state of a target uplink channel according to target information, including at least one of:

the terminal determines that the target TCI state comprises a TCI state of a PDCCH of the target uplink channel;

or alternatively, the process may be performed,

if the number of the first TCI states is equal to 1, if the target uplink channel originally has at least two TCI states, the terminal determines a target TCI state of the target uplink channel according to target information, including:

23. The method of claim 22, wherein the determining, by the terminal, that the target TCI state is the first TCI state if the type of the target uplink channel is UL RS resources or resource sets comprises:

24. The method of claim 1, wherein in the case where the transmission mode of the target uplink channel is a repeated transmission mode or the type of the target uplink channel is PUSCH or UL RS resources, and the target DCI scheduling the target uplink channel schedules at least two PUSCHs or at least two UL RS resources simultaneously;

25. An uplink TCI state determining apparatus, which is applied to a terminal, includes:

the number of first TCI states;

the arrangement order or position of the first TCI state;

the type of the target uplink channel;

a transmission mode of the target uplink channel;

wherein the first identification information includes at least one of:

control resource set CORESET identification information;

CORESET Chi Biaoshi coresetpoillindex;

transmitting receiving point TRP identification ID information;

channel group identification information;

CORESET group identification information;

26. The method for determining the uplink TCI state is characterized by comprising the following steps:

the number of first TCI states;

the arrangement order or position of the first TCI state;

the type of the target uplink channel;

a transmission mode of the target uplink channel;

wherein the first identification information includes at least one of:

control resource set CORESET identification information;

CORESET Chi Biaoshi coresetpoillindex;

transmitting receiving point TRP identification ID information;

channel group identification information;

CORESET group identification information;

27. The method according to claim 26, wherein in case the target information includes the number of the first TCI states, the network side device determines a target TCI state of the target uplink channel according to the target information, including:

28. The method of claim 26, wherein in the case where the number of first TCI states is greater than K, K is the number of TCI states required for the target uplink channel, the network side device determining the target TCI state of the target uplink channel based on the first TCI state comprises:

29. The method of claim 28, wherein the first indication information is carried in a first signaling domain, the first signaling domain being a signaling domain in a medium access control MAC control element CE signaling or a DCI signaling.

30. The method according to any one of claims 26 to 29, wherein:

31. The method according to any one of claims 26 to 29, wherein the target information further comprises a transmission mode of the target uplink channel, the transmission mode comprising: a preset transmission mode, a repeated transmission mode, a multi-beam simultaneous transmission mode or a transmission mode in which the preset transmission mode, the repeated transmission mode and the multi-beam simultaneous transmission mode are dynamically switched, wherein the preset transmission mode is single-beam transmission of non-repeated transmission;

the network side device determines a target TCI state of the target uplink channel according to target information, and the method comprises the following steps:

the method further comprises the steps of:

32. The method according to any of claims 26 to 29, wherein the type of the target uplink channel comprises at least one of: physical uplink control channel PUCCH and physical uplink shared channel PUSCH, UL reference signal RS resource.

33. The method as claimed in claim 32, wherein:

the PUCCH includes at least one of:

any PUCCH;

terminal-specific PUCCH;

and/or the number of the groups of groups,

the PUSCH includes at least one of:

any PUSCH;

presetting PDCCH scheduling or an associated PUSCH;

dynamically scheduled PUSCH;

terminal-specific PUSCH;

the authorized PUSCH is configured.

34. The method of claim 33, wherein the preset PDCCH comprises at least one of:

35. The method of claim 26, wherein in the event that the number of first TCI states is greater than 1:

The target TCI state includes at least one of:

all first TCI states;

36. The method of claim 35, wherein the preset correspondence comprises:

37. The method of claim 26, wherein if the number of the first TCI states is greater than 1, the target TCI state includes a first preset TCI state if the transmission mode of the target uplink channel is a preset transmission mode, wherein the first preset TCI state includes at least one of:

the first TCI states arranged at preset positions in all the first TCI states;

a first TCI state corresponding to the preset first identification information;

38. The method of claim 26, wherein, if the number of the first TCI states is greater than 1, if the time domain behavior of the target uplink channel is periodic uplink channel or the time domain behavior of the carried information is periodic information, the target TCI state includes at least one of:

presetting a first TCI state; or alternatively, the process may be performed,

a second preset TCI state;

wherein the second preset TCI state includes at least one of:

the first TCI states arranged at preset positions in all the first TCI states;

39. The method of claim 26, wherein if the type of the target uplink channel is PUSCH or UL RS resource set if the number of the first TCI states is greater than 1, the target TCI states include at least one of:

a first TCI state corresponding to the preset first identification information;

40. The method of claim 39, wherein the target TCI state includes, in a case where a transmission mode of a PDCCH in which DCI indicating the first TCI state is located or a PDCCH scheduling the target uplink channel is a repeated transmission mode or a multi-beam simultaneous transmission mode:

41. The method of claim 26, wherein if the type of the target uplink channel is PUSCH configured with uplink configuration grant type 1 if the number of the first TCI states is greater than 1, the target TCI states include at least one of:

42. The method of claim 26, wherein if the type of the target uplink channel is UL RS resources or resource sets if the number of the first TCI states is greater than 1, the target TCI states include:

43. The method of claim 26, wherein, if the transmission mode of the target uplink channel is a repeated transmission mode or a multi-beam simultaneous transmission mode in the case where the number of the first TCI states is equal to 1, the network side device determines, according to the target information, the target TCI state of the target uplink channel, including at least one of:

44. The method according to claim 26, wherein in the case that the number of the first TCI states is equal to 1, the network side device determines, according to target information, a target TCI state of the target uplink channel, including at least one of:

under the condition that the target uplink channel corresponds to the first identification information with different first TCI states, the network side equipment determines that the target TCI state comprises the original TCI state of the target uplink channel or determines that the PUSCH or ULRS stops transmitting;

or alternatively, the process may be performed,

45. The method of claim 44, wherein the network side device determining that the target TCI state is the first TCI state if the type of the target uplink channel is UL RS resources or a set of resources comprises:

46. The method of claim 26, wherein in the case where the transmission mode of the target uplink channel is a repeated transmission mode, or the type of the target uplink channel is PUSCH or UL RS resources and the target DCI scheduling the target uplink channel simultaneously schedules at least two PUSCHs or at least two UL RS resources;

the network side equipment receives first feedback information from the terminal, wherein the first feedback information is used for indicating that the terminal correctly receives the public beam information;

47. An uplink TCI state determining apparatus, which is applied to a network side device, includes:

the number of first TCI states;

the arrangement order or position of the first TCI state;

the type of the target uplink channel;

a transmission mode of the target uplink channel;

wherein the first identification information includes at least one of:

control resource set CORESET identification information;

CORESET Chi Biaoshi coresetpoillindex;

transmitting receiving point TRP identification ID information;

channel group identification information;

CORESET group identification information;

48. A terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the uplink TCI state determining method according to any one of claims 1 to 24.

49. A network side device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the upstream TCI state determining method according to any one of claims 26 to 46.

50. A readable storage medium, characterized in that it stores thereon a program or instructions that, when executed by a processor, implements the method of determining an uplink TCI state according to any one of claims 1 to 24 or the steps of the method of determining an uplink TCI state according to any one of claims 26 to 46.