Uplink tci state determination method and apparatus, terminal and network-side device

Abstract

The application discloses an uplink TCI state determination method and device, a terminal and a network side equipment, and belongs to the technical field of communication. The uplink TCI state determination method comprises the following steps: a terminal acquires common beam information indicated by a network side equipment, wherein the common beam information comprises N first transmission configuration indication (TCI) states, the first TCI state is a joint TCI state or an independent uplink (UL) TCI state, and N is an integer greater than or equal to 1; and the terminal determines a target TCI state of a target uplink channel according to target information.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of communication, and particularly relates to an uplink TCI state determination method and device, a terminal and a network side device. BACKGROUND

[0002] In a multi-transmission reception point (mTRP) scenario, the beam information of various channels is based on a scheme before a unified transmission configuration indicator (TCI) state framework in the 3rd Generation Partnership Project (3GPP) public release 17 (R17), that is, the network side device needs to use the beam indication scheme corresponding to each channel to indicate the TCI state of the channel, so that the terminal determines which beam to use for transmission using the TCI state indicated by the network side device. Thus, the complexity of the beam indication process of each channel is increased. SUMMARY

[0003] Embodiments of the present application provide an uplink TCI state determination method, device, terminal and network side device, which can simplify the beam indication process of each uplink channel by indicating a common TCI state for different uplink channels.

[0004] In a first aspect, an uplink TCI state determination method is provided, applied to a terminal, and the method comprises:

[0005] The terminal acquires common beam information indicated by a network side device, wherein the common beam information comprises N first transmission configuration indicator (TCI) states, the first TCI state is a joint TCI state or an independent uplink (UL) TCI state, and N is an integer greater than or equal to 1.

[0006] 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:

[0007] The number of the first TCI states;

[0008] The arrangement order or position of the first TCI states;

[0009] The correspondence between the first TCI states and first identification information;

[0010] The type of the target uplink channel;

[0011] a transmission mode of the target uplink channel;

[0012] a time domain behavior of the target uplink channel or a time domain behavior of information carried by the target uplink channel;

[0013] a number of the first identification information corresponding to the target uplink channel;

[0014] a value of the first identification information corresponding to the target uplink channel;

[0015] The first identification information includes at least one of the following:

[0016] control resource set CORESET identification information;

[0017] CORESET pool identification CORESETPoolIndex;

[0018] transmission and reception point TRP identification ID information;

[0019] channel group identification information;

[0020] CORESET group identification information;

[0021] Physical uplink control channel PUCCH resource group identification information.

[0022] In a second aspect, an uplink TCI state determination apparatus is provided, applied to a terminal, and the apparatus comprises:

[0023] The acquisition module is configured to acquire common beam information indicated by a network side device, wherein the common beam information comprises N first transmission configuration indication TCI states, the first TCI state is a joint TCI state or an independent uplink UL TCI state, and N is an integer greater than or equal to 1.

[0024] The first determination module is configured to determine a target TCI state of a target uplink channel according to target information, wherein the target information comprises at least one of the following:

[0025] The number of the first TCI state;

[0026] The arrangement order or position of the first TCI state;

[0027] The correspondence between the first TCI state and the first identification information;

[0028] The type of the target uplink channel;

[0029] a transmission mode of the target uplink channel;

[0030] a time domain behavior of the target uplink channel or a time domain behavior of information carried by the target uplink channel;

[0031] a number of the first identification information corresponding to the target uplink channel;

[0032] a value of the first identification information corresponding to the target uplink channel;

[0033] The first identification information includes at least one of the following:

[0034] control resource set CORESET identification information;

[0035] CORESET pool identification CORESETPoolIndex;

[0036] transmission and reception point TRP identification ID information;

[0037] channel group identification information;

[0038] CORESET group identification information;

[0039] physical uplink control channel PUCCH resource group identification information.

[0040] In a third aspect, an uplink TCI state determination method is provided, applied to a network side device, and the method comprises:

[0041] The network side device indicates common beam information to the terminal, wherein the common beam information includes N first transmission configuration indication TCI states, the first TCI state is a joint TCI state or an independent uplink UL TCI state, and N is an integer greater than or equal to 1;

[0042] The network side device determines a target TCI state of a target uplink channel according to target information, wherein the target information includes at least one of the following:

[0043] a number of the first TCI states;

[0044] an arrangement order or a position of the first TCI states;

[0045] a corresponding relationship between the first TCI states and first identification information;

[0046] a type of the target uplink channel;

[0047] a transmission mode of the target uplink channel;

[0048] a time domain behavior of the target uplink channel or a time domain behavior of information carried by the target uplink channel;

[0049] a number of the first identification information corresponding to the target uplink channel;

[0050] a value of the first identification information corresponding to the target uplink channel;

[0051] The first identification information includes at least one of the following:

[0052] Control resource set CORESET identification information;

[0053] CORESET pool identification CORESETPoolIndex;

[0054] Transmission and reception point TRP identification ID information;

[0055] Channel group identification information;

[0056] CORESET group identification information;

[0057] Physical uplink control channel PUCCH resource group identification information.

[0058] In a fourth aspect, an uplink TCI state determination apparatus is provided, applied to a network side device, and the apparatus includes:

[0059] An indication module is configured to indicate common beam information to a terminal, wherein 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.

[0060] A second determination module is configured to determine a target TCI state of a target uplink channel according to target information, wherein the target information includes at least one of the following:

[0061] The number of the first TCI states;

[0062] The arrangement order or position of the first TCI states;

[0063] The correspondence between the first TCI states and first identification information;

[0064] The type of the target uplink channel;

[0065] The transmission mode of the target uplink channel;

[0066] The time domain behavior of the target uplink channel or the time domain behavior of information carried by the target uplink channel;

[0067] The number of the first identification information corresponding to the target uplink channel;

[0068] A value of the first identification information corresponding to the target uplink channel;

[0069] The first identification information includes at least one of the following:

[0070] Control resource set CORESET identification information;

[0071] CORESET pool identification CORESETPoolIndex;

[0072] Transmission reception point TRP identification ID information;

[0073] Channel group identification information;

[0074] CORESET group identification information;

[0075] Physical uplink control channel PUCCH resource group identification information.

[0076] In a fifth aspect, a terminal is provided, comprising a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions being executed by the processor to implement the steps of the method according to the first aspect.

[0077] In a sixth aspect, a terminal is provided, comprising a processor and a communication interface, wherein the communication interface is configured to obtain common beam information indicated by a network side device, the common beam information comprising N first transmission configuration indication TCI states, the first TCI states being joint TCI states or independent uplink UL TCI states, N being an integer greater than or equal to 1; and the processor is configured to determine a target TCI state of a target uplink channel according to target information, the target information comprising at least one of the following:

[0078] The number of the first TCI states;

[0079] The arrangement order or position of the first TCI states;

[0080] The correspondence between the first TCI states and first identification information;

[0081] The type of the target uplink channel;

[0082] The transmission mode of the target uplink channel;

[0083] The time domain behavior of the target uplink channel or the time domain behavior of information carried by the target uplink channel;

[0084] The number of the first identification information corresponding to the target uplink channel;

[0085] The value of the first identification information corresponding to the target uplink channel;

[0086] The first identification information comprises at least one of the following:

[0087] Control resource set CORESET identification information;

[0088] CORESET pool identification CORESETPoolIndex;

[0089] Transmission reception point TRP identification ID information;

[0090] Channel group identification information;

[0091] CORESET group identification information;

[0092] Physical uplink control channel PUCCH resource group identification information.

[0093] In a seventh aspect, a network-side device is provided, comprising a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions being executed by the processor to implement the steps of the method according to the third aspect.

[0094] In an eighth aspect, a network-side device is provided, comprising a processor and a communication interface, wherein the communication interface is configured to indicate common beam information to a terminal, the common beam information comprising N first transmission configuration indication TCI states, the first TCI states being joint TCI states or independent uplink UL TCI states, N being 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, the target information comprising at least one of the following:

[0095] The number of the first TCI states;

[0096] The arrangement order or position of the first TCI states;

[0097] The correspondence between the first TCI states and first identification information;

[0098] The type of the target uplink channel;

[0099] The transmission mode of the target uplink channel;

[0100] The time domain behavior of the target uplink channel or the time domain behavior of information carried by the target uplink channel;

[0101] The number of the first identification information corresponding to the target uplink channel;

[0102] The value of the first identification information corresponding to the target uplink channel;

[0103] The first identification information comprises at least one of the following:

[0104] Control resource set CORESET identification information;

[0105] CORESET pool identification CORESETPoolIndex;

[0106] Transmission and reception point TRP identification ID information;

[0107] Channel group identification information;

[0108] CORESET group identification information;

[0109] Physical uplink control channel PUCCH resource group identification information.

[0110] In a ninth aspect, a wireless communication system is provided, including a terminal and a network side device, the terminal being configured to perform the steps of the uplink TCI state determination method according to the first aspect, and the network side device being configured to perform the steps of the uplink TCI state determination method according to the third aspect.

[0111] In a tenth aspect, a readable storage medium is provided, the readable storage medium storing a program or instructions, the program or instructions being executed by a processor to implement the steps of the method according to the first aspect, or to implement the steps of the method according to the third aspect.

[0112] In an eleventh aspect, a chip is provided, the chip including a processor and a communication interface, the communication interface being coupled to the processor, and the processor being configured to run a program or instructions to implement the method according to the first aspect, or to implement the method according to the third aspect.

[0113] In a twelfth aspect, a computer program / program product is provided, the computer program / program product being stored in a storage medium, and the computer program / program product being executed by at least one processor to implement the steps of the uplink TCI state determination method according to the first aspect, or to implement the steps of the uplink TCI state determination method according to the third aspect.

[0114] In the embodiments of the present application, the terminal acquires the common beam information indicated by the network side device and shared or used by each uplink channel, and can determine the target TCI state of each type of uplink channel according to the target information, even in a multi-TRP scenario. Without indicating the target TCI state of each uplink channel according to the TCI state indication process corresponding to each type of channel, the embodiments of the present application can apply a unified TCI state indication framework in a multi-TRP scenario, thereby simplifying the complexity of TCI state indication or beam indication of each uplink channel. BRIEF DESCRIPTION OF DRAWINGS

[0115] Figure 1 is a structural schematic diagram of a wireless communication system to which the embodiments of the present application can be applied.

[0116] Figure 2 is a flowchart of an uplink TCI state determination method provided by an embodiment of the present application;

[0117] Figure 3 is a flowchart of another uplink TCI state determination method provided by an embodiment of the present application;

[0118] Figure 4 is a structural schematic diagram of an uplink TCI state determination apparatus provided by an embodiment of the present application;

[0119] Figure 5 is a structural schematic diagram of another uplink TCI state determination apparatus provided by an embodiment of the present application;

[0120] Figure 6 is a structural schematic diagram of a communication device provided by an embodiment of the present application;

[0121] Figure 7 is a hardware structural schematic diagram of a terminal provided by an embodiment of the present application;

[0122] Figure 8 is a structural schematic diagram of a network side device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0123] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0124] The terms “first”, “second”, and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than that illustrated or described herein, and the objects distinguished by “first”, “second” are generally of a kind, and are not limited to the number of objects, for example, the first object can be one or more. In addition, “and / or” in the specification and claims means at least one of the connected objects, and the character “ / ” generally represents an “or” relationship between the associated objects before and after.

[0125] It is worth noting that the technology described in the embodiments of the present application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used in the above-mentioned systems and radio technologies, as well as in other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following description, but these technologies can also be applied outside the NR system application, such as in a 6th Generation (6G) communication system. th

[0126] Figure 1 ​A block diagram of a wireless communication system to which embodiments of the present application can be applied is shown. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can be a terminal-side device such as a mobile phone, a Tablet Personal Computer, a Laptop Computer, a Personal Digital Assistant (PDA), a palmtop computer, a netbook, an ultra-mobile personal computer (UMPC), a Mobile Internet Device (MID), an augmented reality (AR) / virtual reality (VR) device, a robot, a wearable device, a vehicle-mounted device (VUE), a pedestrian terminal (PUE), a smart home (a home device with a wireless communication function such as a refrigerator, a television, a washing machine, or furniture), a game console, a personal computer (PC), a kiosk, or a self-service machine, and the wearable device includes a smart watch, a smart bracelet, a smart earphone, smart glasses, smart jewelry (a smart bracelet, a smart necklace, a smart ring, a smart necklace, a smart anklet, a smart necklace, and the like), a smart wristband, smart clothing, and the like. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application. The network-side device 12 can include an access network device or a core network device, and the access network device 12 can also be referred to as a radio access network device, a radio access network (RAN), a radio access network function, or a radio access network unit. The access network device 12 can include a base station, a WLAN access point, or a WiFi node, and the base station can be referred to as a node B, an evolved node B (eNB), an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a home node B, a home evolved node B, a transmitting receiving point (TRP), or some other appropriate terminology in the art, as long as the same technical effects are achieved. The base station is not limited to a specific technical term, and it should be noted that only a base station in an NR system is taken as an example for description in the embodiments of the present application, and the specific type of the base station is not limited.

[0127] The uplink TCI state determination method, the uplink TCI state determination apparatus, the terminal, and the network side device provided by the embodiments of the present application are described in detail below in combination with some embodiments and application scenarios.

[0128] In wireless communication, after beam measurement and beam reporting, the network side device can perform beam indication on the channel or reference signal of the downlink and the uplink, so as to establish a beam link between the network side device and the user equipment (UE, hereinafter referred to as terminal) and realize the transmission of the channel or reference signal.

[0129] It should be noted that the beam information in the embodiments of the present application can include at least one of the following: identification information of the beam, spatial relation information, spatial domain transmission filter information, spatial domain reception filter information, spatial filter information, transmission configuration indication state (TCI state) information, quasi-colocation (QCL) information, and QCL parameters. Among them, the downlink beam information can be usually represented by TCI state information or QCL information. The uplink beam information can be usually represented by TCI state information or spatial relation information.

[0130] In the related art, each channel or reference signal has its own beam indication mechanism:

[0131] 1) Beam indication for Physical Downlink Control Channel (PDCCH): Network side device configures K TCI states for each Control resource set (CORESET) using Radio Resource Control (RRC) signaling, when K > 1, 1 TCI state is indicated or activated by Medium Access Control (MAC) Control Element (CE), when K = 1, no additional MAC CE signaling is needed. UE uses the same QCL, i.e. the same TCI state, to monitor PDCCH for all search spaces (SS) within a CORESET when monitoring PDCCH. The referenceSignal (e.g. periodic Channel State Information Reference Signal (CSI-RS) resource, semi-persistent CSI-RS resource, Synchronization Signal Block (SSB), etc.) in this TCI state is spatially QCLed with the Demodulation Reference Signal (DMRS) port of UE-specific PDCCH. UE can know which receive beam to use to receive PDCCH according to this TCI state.

[0132] 2) Beam indication for Physical Downlink Shared Channel (PDSCH): Network side device configures M TCI states using RRC signaling, then activates up to 8 codepoints of TCI states using MAC CE signaling, then informs the TCI state using 3-bit TCI field in Downlink Control Information (DCI), the referenceSignal in this TCI state is QCLed with the DMRS port of the scheduled PDSCH. UE can know which receive beam to use to receive PDSCH according to this TCI state.

[0133] 3) Beam indication for CSI-RS: When the CSI-RS type is periodic CSI-RS, the network side device configures the QCL information for the CSI-RS resource through RRC signaling. When the CSI-RS type is semi-persistent CSI-RS, the network side device indicates the QCL information of the activated CSI-RS resource from the RRC configured CSI-RS resource set through MAC CE signaling. When the CSI-RS type is aperiodic CSI-RS, the network side device configures the QCL for the CSI-RS resource through RRC signaling and uses DCI to trigger the CSI-RS.

[0134] 4) Beam indication for Physical Uplink Control Channel (PUCCH): The network side device uses RRC signaling to configure spatial relation information for each PUCCH resource through the parameter "PUCCH-SpatialRelationInfo". When the spatial relation information configured for the PUCCH resource contains multiple, use MAC CE to indicate or activate one of the spatial relation information. When the spatial relation information configured for the PUCCH resource contains only 1, no additional MAC CE signaling is required.

[0135] 5) Beam indication for Physical Uplink Shared Channel (PUSCH): The spatial relation information of the PUSCH is that when the PDCCH carries the DCI to schedule the PUSCH, each SRI codepoint of the Sounding Reference Signal (SRS) resource indicator (SRI) field in the DCI indicates an SRI, which is used to indicate the spatial relation information of the PUSCH.

[0136] 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 aperiodic SRS, the network side device configures spatial relation information for SRS resource through RRC signaling, and can update through MAC CE signaling.

[0137] As can be seen from the above, in the related art, based on different types of channel or reference signal resources, the target TCI state used by the channel or reference signal resource needs to be indicated through the beam indication process corresponding to the channel or reference signal resource. It can be seen that the process of beam indication is relatively complex.

[0138] In order to simplify the beam indication process, a new TCI framework (framework) is introduced in the public version (Release) 17 of the 5G NR of the 3rd Generation Partnership Project (3GPP), which can be called unified TCI framework. That is, the same beam indicated by the network side device using MAC CE and / or DCI can be used for the transmission of multiple channels. Such a beam can also be called a common beam. The beam indication process of the unified TCI framework is as follows:

[0139] The network side device configures a TCI state pool through RRC signaling, and activates one or more TCI states in the TCI state pool using MAC CE signaling. When the MAC CE activates the TCI state corresponding to one codepoint, the activated TCI state is directly applied to the target signal. When the MAC CE activates the TCI state corresponding to multiple codepoints respectively, the network side device uses the TCI field in the DCI to indicate one codepoint, and the TCI state corresponding to the one codepoint is applied to the target signal.

[0140] Among them, the TCI state in the unified TCI framework can include two modes of joint TCI state and separate TCI state, which is configured by the RRC signaling of the network side device. Among them, for the joint TCI state, each codepoint corresponds to 1 TCI state; for the separate TCI state, each codepoint can correspond to 1 downlink (DL) TCI state and 1 uplink (UL) TCI state, or 1 DL TCI state, or 1 UL TCI state.

[0141] For the source RS of the TCI state, it can be divided into the following two cases:

[0142] 1) DL: CSI-RS for beam management, CSI-RS for tracking;

[0143] 2) UL: SSB, CSI-RS for beam management, CSI-RS for tracking, SRS for beam management.

[0144] For the target signal of the TCI state, it can be divided into the following two cases:

[0145] 1) DL: UE-dedicated reception on PDSCH, UE-dedicated reception on all or subset of CORESETs, aperiodic CSI-RS resources for CSI, aperiodic CSI-RS resources for Beam Management (BM), DMRS(s) associated with non-UE-dedicated reception on CORESET(s) and the associated PDSCH (associated with the serving cell Physical Cell Identifier (PCI));

[0146] 2) UL: dynamic-grant / configured-grant based PUSCH, all of dedicated PUCCH resources, aperiodic SRS resources or resource sets for BM, SRS for antenna switching, SRS for codebook, SRS for non-codebook.

[0147] In implementation, DCI formats 1_1 / 1_2 with DL assignment and DCI format 1_1 / 1_2 without DL assignment are supported when network-side device uses DCI for beam indication.

[0148] Beam indication DCI indicates the effective time of TCI state (beam application time), defined as: the first slot to apply the indicated TCI state is at least Y symbols after the last symbol of the acknowledgment of the joint or separate DL / UL beam indication.

[0149] The path loss (pathloss RS, PLRS) in the power control parameter is configured by the network side device in the TCI state or associated with the TCI state. Other parameters in the power control parameter (such as: P0, alpha and close loop index parameters) are configured by the network side device and associated with the TCI state. For PUCCH, PUSCH, SRS, there will be respective parameter configurations associated with the TCI state or included in the configuration information of each channel.

[0150] For the carrier aggregation (Carrier Aggregation, CA) scenario, the network indicates the common QCL information and / or the common UL TX spatial filter across a set of configured component carriers (CC).

[0151] It should be noted that although the unified TCI framework is proposed in 3GPP R17 as above, it is only applicable to single-TRP (single-TRP, sTRP) scenarios, and is not applicable to multi-TRP (multi-TRP, mTRP) transmission introduced in 3GPP R16. That is, there is currently no solution to apply the unified TCI framework to uplink channels in the mTRP scenario. The embodiments of the present application propose a solution that can apply the unified TCI framework to uplink channels in the mTRP scenario.

[0152] Please refer to Figure 2The embodiment of the application provides an uplink TCI state determination method, and the execution subject of the method can be a terminal. The terminal can be various terminals 11 listed in the embodiment of the application or other types of terminals, which are not limited herein. As shown in the embodiment of the application, the uplink TCI state determination method can include the following steps. Figure 1 The embodiment of the application provides an uplink TCI state determination method, and the execution subject of the method can be a terminal. The terminal can be various terminals 11 listed in the embodiment of the application or other types of terminals, which are not limited herein. As shown in the embodiment of the application, the uplink TCI state determination method can include the following steps. Figure 2 The embodiment of the application provides an uplink TCI state determination method, and the execution subject of the method can be a terminal. The terminal can be various terminals 11 listed in the embodiment of the application or other types of terminals, which are not limited herein. As shown in the embodiment of the application, the uplink TCI state determination method can include the following steps.

[0153] Step 201, a terminal acquires common beam information indicated by a network side device, wherein the common beam information includes N first transmission configuration indication (TCI) states, the first TCI state is a joint TCI state or an independent uplink (UL) TCI state, and N is an integer greater than or equal to 1.

[0154] In implementation, the first TCI state can be understood as an activated TCI state shared by each uplink channel, reference signal resource or reference signal resource set in an mTRP scenario, for example: the network side device configures a TCI state pool through RRC signaling, and activates the TCI state corresponding to one or at least two codepoints through MAC CE signaling, when the number of activated codepoints is greater than 1, the network side device further uses the TCI field in the DCI to indicate at least part of the activated TCI state as the first TCI state.

[0155] Wherein, the multi-TRP scenario can be understood as that one network side device can have at least two TRPs, and different TRPs can include the same and / or different beams. In the transmission process, the network side device can communicate with the terminal via one or more of the at least two TRPs.

[0156] In implementation, the number of the first TCI state can usually be 2, of course, it can also be 1 or more than 2, in order to facilitate the description, the number of the first TCI state is usually taken as 2 in the following embodiment, which is a typical example, and the number of the first TCI state is not limited herein.

[0157] Step 202, the terminal determines a target TCI state of a target uplink channel according to target information.

[0158] Wherein, the target information includes at least one of the following:

[0159] The number of the first TCI state;

[0160] The arrangement order or position of the first TCI state;

[0161] The corresponding relationship between the first TCI state and the first identification information;

[0162] a type of the target uplink channel (e.g., PUSCH, PUCCH, UL RS resource, etc.);

[0163] a transmission mode of the target uplink channel;

[0164] a time domain behavior of the target uplink channel or a time domain behavior of information carried by the target uplink channel;

[0165] a number of the first identification information corresponding to the target uplink channel;

[0166] a value of the first identification information corresponding to the target uplink channel;

[0167] The first identification information includes at least one of the following:

[0168] control resource set CORESET identification information;

[0169] CORESET pool identification CORESETPoolIndex;

[0170] transmission and reception point TRP identification ID information;

[0171] channel group identification information;

[0172] CORESET group identification information;

[0173] physical uplink control channel (PUCCH) resource group identification information.

[0174] In implementation, the number of first TCI states can be one or at least two, for example, in a scenario where a network side device has N TRPs, the network side device can indicate N first TCI states. And the first TCI state can be a joint TCI state or an independent uplink (UL) TCI state, which is not specifically limited here.

[0175] In addition, the type of the target uplink channel can include: physical uplink control channel (PUCCH), physical uplink shared channel (PUSCH), UL RS resource.

[0176] The PUCCH can be at least one of the following:

[0177] any PUCCH;

[0178] a PUSCH scheduled or associated with a pre-configured physical downlink control channel (PDCCH);

[0179] a terminal-specific (UE-dedicated) PUCCH;

[0180] and / or,

[0181] the PUSCH comprises at least one of:

[0182] any PUSCH;

[0183] a PUSCH scheduled or associated with a pre-configured PDCCH;

[0184] a dynamically scheduled PUSCH;

[0185] a terminal-specific PUSCH;

[0186] a configured grant (CG) PUSCH.

[0187] the pre-configured PDCCH comprises at least one of:

[0188] all PDCCHs, PDCCHs on terminal-specific (UE-dedicated) control resource sets (CORESETs), PDCCHs on CORESETs associated with only UE-specific (USS) search spaces, PDCCHs on CORESETs associated with both USS and common search spaces (CSS), PDCCHs on CORESETs associated with only CSS, PDCCHs on CORESETs other than CORESET#0.

[0189] In addition, the transmission mode of the target uplink channel can comprise a repetition transmission mode, a multi-beam simultaneous transmission mode (e.g., a single frequency network (SFN) transmission, a frequency division multiplexing (FDM) transmission, a space division multiplexing (SDM), etc.), a pre-configured transmission mode (i.e., a single-beam transmission mode without repetition), or a transmission mode dynamically switching between the pre-configured transmission mode, the repetition transmission mode, and the multi-beam simultaneous transmission mode.

[0190] It should be noted that in the following embodiments, the mode of simultaneous transmission of multiple beams is uniformly referred to as an SFN transmission mode, which does not constitute a specific limitation.

[0191] Embodiments of the present application design a scheme of applying unified TCI states for uplink channels in mTRP, including PUCCH, PUSCH, and UL RS, etc.

[0192] In implementation, according to the type and / or transmission mode of the target uplink channel, the number and type of TCI states required by the target uplink channel will also change, so there will be cases where the number of first TCI states indicated by the network side device is greater than, less than, or equal to the number of TCI states required by the target uplink channel.

[0193] Option one, in the process of determining the target TCI state of the target uplink channel according to the number of first TCI states, it can be determined according to whether the number of first TCI states is greater than or equal to the number of TCI states required by the target uplink channel, whether to update the TCI state of the target uplink channel, and which TCI state to update, for example: when the number of first TCI states is greater than or equal to K, K is the number of TCI states required by the target uplink channel, at least K first TCI states can be used to determine the beam information of the target uplink channel (i.e. update all TCI states of the target uplink channel); when the number of first TCI states is less than K, the target uplink channel can use its original TCI state (i.e. do not update the TCI state of the target uplink channel), or the target uplink channel can use its original part of the TCI state and the first TCI state (i.e. update part of the TCI state of the target uplink channel). Of course, when the number of first TCI states is less than K, it can also be determined that the target uplink channel stops transmission, or the transmission mode of the target uplink channel is switched to a transmission mode that matches the number of first TCI states (for example: assuming that the number of first TCI states is equal to 1, and the transmission mode of the target uplink channel is: a mode of repeated transmission using 2 TCI states, or a mode of simultaneous transmission of multiple beams of FDM, SDM or SFN, then the terminal can determine that the configuration of the repeated transmission mode or the mode of simultaneous transmission of multiple beams is invalid, thereby changing the transmission mode of the target uplink channel to a single beam transmission mode using only 1 TCI state).

[0194] Option two, in the process of determining the target TCI state of the target uplink channel according to the arrangement order or position of the first TCI state, the first TCI state arranged in a preset position (such as the first position, the second position, etc.) can be determined as the target TCI state of the target uplink channel. For example, when the number of the first TCI state is at least two and the target uplink channel needs to use two TCI states, the first TCI state arranged in the first position and the second position can be determined as the target TCI state of the target uplink channel.

[0195] 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, which can correspond to one or more TCI states arranged in sequence. In this way, when the TCI code point corresponds to multiple TCI states, each TCI state has its own arrangement order or arrangement position.

[0196] Option three, in the process of 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 can be determined as the target TCI state of the target uplink channel. For example, the first TCI state corresponding to the preset value (which can be the minimum value) of CORESETPoolIndex is determined as the target TCI state of the target uplink channel.

[0197] Option four, 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 can be determined according to the TCI state related to the channel type. For example, the target TCI state of the PUSCH or UL RS resource is determined according to the TCI state of the PDCCH scheduling or triggering the PUSCH or UL RS resource.

[0198] Option five, in the process of determining the target TCI state of the target uplink channel according to the transmission mode of the target uplink channel, the number of TCI states required by the target uplink channel can be determined according to the transmission mode of the target uplink channel, so that the number of target TCI states can be determined.

[0199] Optionally, before the terminal determines the target TCI state of the target uplink channel according to the target information, the method further comprises:

[0200] The terminal receives second indication information from the network side device, and determines a transmission mode of the target uplink channel according to the second indication information, the transmission mode including: a preset transmission mode, a repeated transmission mode, a multi-beam simultaneous transmission mode, or a transmission mode dynamically switching between the preset transmission mode, the repeated transmission mode, and the multi-beam simultaneous transmission mode, wherein the preset transmission mode is single-beam transmission without repetition.

[0201] In the embodiment, the network side device can indicate the transmission mode of the target uplink channel. Further, the second indication information can be used to indicate the transmission mode of the target uplink channel, or the second indication information is used to indicate the number of target TCI states, wherein the second indication information used to indicate the number of target TCI states can be understood as indirectly indicating the transmission mode of the target uplink channel. For example, the network side device can use indication signaling for each PUCCH resource or PUCCH resource group to indicate various transmission modes such as single-TCI state transmission (single-beam transmission), multi-TCI state transmission (multi-beam transmission), and dynamic switching of TCI state number (i.e., switching between single-beam transmission and multi-beam transmission). The indication signaling can be explicit indication of various transmission modes through RRC, MAC CE, or DCI signaling, or indirect indication of various transmission modes through RRC, MAC CE, or DCI signaling indicating the number of TCI states. For example, if the RRC configures the number of repetitions to be greater than 1, it is multi-TCI state transmission; if the MAC CE activates a codepoint corresponding to multiple TCI states, it is multi-TCI state transmission; and if the DCI indicates one or more TCI states, it realizes dynamic switching between single-TCI state transmission and multi-TCI state transmission.

[0202] Optionally, in the case that the target information includes the number of first TCI states, the terminal determines the target TCI state of the target uplink channel according to the target information, including:

[0203] In the case that the terminal uses single-beam transmission, if the number of 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,

[0204] In the case that the terminal adopts single-beam transmission, if the number of the first TCI states is at least two, the terminal determines the transmission mode of the target uplink channel to be single-beam transmission (i.e. the target uplink channel uses one of the at least two first TCI states for single-beam transmission) or repetition 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 repetition transmission or multi-beam simultaneous transmission); or,

[0205] In the case that the terminal adopts repetition transmission mode or multi-beam simultaneous transmission mode, if the number of the first TCI states is one, the terminal determines the transmission mode of the target uplink channel to be single-beam transmission (i.e. the target uplink channel directly uses the one first TCI state for non-repetitive single-beam transmission) or the repetition transmission mode (i.e. the target uplink channel directly uses the one first TCI state for continued repetition transmission, or the target uplink channel uses the original at least two TCI states for repetition transmission, or the target uplink channel uses the original part of the TCI states and the one first TCI state for repetition transmission) or multi-beam simultaneous transmission mode (i.e. the target uplink channel uses the original at least two TCI states for multi-beam simultaneous transmission, or the target uplink channel uses the original part of the TCI states and the one first TCI state for multi-beam simultaneous transmission); or,

[0206] In the case that the terminal adopts repetition transmission mode or multi-beam simultaneous transmission mode, if the number of the first TCI states is at least two, the terminal determines the transmission mode of the target uplink channel to be the repetition 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 repetition transmission or multi-beam simultaneous transmission).

[0207] Option six, 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, the time domain behavior of the target uplink channel can be distinguished as periodic or aperiodic, or the time domain behavior of the information carried can be distinguished as periodic information or aperiodic information, and then different target TCI states can be adopted for periodic uplink channels and aperiodic uplink channels, or different target TCI states can be adopted for uplink channels carrying periodic information and uplink channels carrying aperiodic information.

[0208] Optionally, in the case that the time domain behavior of the target uplink channel is a periodic uplink channel or the time domain behavior of the information carried is periodic information, the target TCI state includes at least one of the following:

[0209] TCI states other than the first TCI state in the TCI state pool, or original TCI states of the target uplink channel;

[0210] the first TCI state corresponding to the first identification information associated with the target uplink channel;

[0211] the first TCI state indicated by the third indication information from the network side device;

[0212] a second preset TCI state;

[0213] The second preset TCI state includes at least one of the following:

[0214] all the first TCI states arranged in a preset position;

[0215] The first TCI state corresponding to the preset first identification information.

[0216] The third indication information can be located in the configuration information of the target uplink channel, which can reduce signaling overhead. Of course, the third indication information can also be any newly added signaling, which is not limited here.

[0217] In implementation, taking the target uplink channel as a PUCCH resource carrying periodic information or a periodic PUCCH resource as an example, the confirmation mode of the target TCI state of the PUCCH can include at least one of the following:

[0218] Mode one: the target TCI state includes TCI states other than the first TCI state in the TCI state pool, or the target TCI state includes original TCI states of the target uplink channel, that is, the PUCCH does not use the first TCI state indicated by the network side device;

[0219] Mode two: the target TCI state includes the first TCI state corresponding to the first identification information associated with (corresponding to or belonging to) the target uplink channel, at this time, the target uplink channel has the first identification information associated with, corresponding to or belonging to (in this embodiment, it is uniformly referred to as "associated with"), and each first TCI state has its corresponding first identification information, so that the first TCI state corresponding to the same first identification information as the target uplink channel can be applied to the PUCCH;

[0220] Manner 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 the first TCI state applied to PUCCH, or the third indication information can be located in the configuration information of the target uplink channel, for example: the signaling can be configured in the configuration information of PUCCH resource, and the configuration can be used only for periodic PUCCH resource or PUCCH resource carrying periodic information, and the third indication information can not be configured for other non-periodic (for example: semi-persistent, dynamically scheduled, etc.) PUCCH resource.

[0221] Manner four: the target TCI state includes a second preset TCI state, wherein the second preset TCI state includes at least one of the following:

[0222] All first TCI states arranged in a preset position, and the first TCI state corresponding to the preset first identification information. For example: the target TCI state includes a first first TCI state, a first TCI state corresponding to a first channel group, a CORESET group, a PUCCH resource group or a TRP ID (CORESETPoolIndex).

[0223] In implementation, the meaning and role of the above-mentioned second preset TCI state are the same as those of the above-mentioned first preset TCI state options one and two, which will not be repeated here,

[0224] In this embodiment, the first TCI state in the unified TCI framework, which can be shared by multiple channel or reference signal resources, can be applied to periodic uplink channels or uplink channel resources carrying periodic information.

[0225] It should be noted that in the case where the target uplink channel is PUSCH or UL RS resource, and the PUSCH or UL RS is non-periodic, the target TCI state can be the TCI state of the PDCCH scheduling the PUSCH or UL RS resource.

[0226] Option seven, in the process 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 can be determined according to the number of the first identification information corresponding to the target uplink channel. For example, for a PUCCH configured in SFN transmission mode, it can correspond to two channel groups, CORESET groups, CORESETPoolIndex or TRP IDs and other first identification information at the same time. At this time, the two TCI states corresponding to two first identification information indicated by the network side device can be applied to the SFN PUCCH.

[0227] Option eight, in the process 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 corresponding relationship between the first identification information and the TCI state can be used to determine which TCI state the value of the first identification information corresponds to.

[0228] In implementation, the above options one to eight can be combined with each other, that is, the terminal can determine the target TCI state according to one or at least two of the above options one to eight. For example, in the case that the first TCI state indicated by the network side device can meet the requirements of the target uplink channel for the number of TCI states, channel type, associated first identification information, etc., the terminal can select K from the first TCI state indicated by the network side device as the target TCI state according to the target information, and K is the number of TCI states required by the target uplink channel.

[0229] As an optional implementation, in the case that the number of the first TCI state is greater than K, K is the number of TCI states required by the target uplink channel, the terminal determines the target TCI state of the target uplink channel according to the target information, including:

[0230] The terminal determines K first TCI states arranged in a preset position as the target TCI state of the target uplink channel; or,

[0231] 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, wherein the first indication information is used to indicate K first TCI states.

[0232] Wherein, the K first TCI states arranged in the preset position can be understood as: after at least two first TCI states indicated by the network side device are arranged in a preset order, the preset position of each first TCI state is determined according to the arrangement position of each first TCI state, or each first TCI state corresponds to a respective preset position identifier.

[0233] In this way, the terminal can determine the preset position according to the default rule, for example, the TCI state of the preset position is arranged in the first TCI state. Of course, in actual implementation, the network side device can also indicate the preset position to the terminal, so that the terminal can determine the first TCI state corresponding to the preset position after obtaining the preset position.

[0234] In actual implementation, the preset order or position of the first TCI state can be determined according to the order or position of the plurality of first TCI states corresponding to the codepoint when the first TCI state is activated by the MAC CE, or determined when the first TCI state is indicated by the DCI, which is not limited here.

[0235] 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 can be understood as that the terminal receives the first indication information from the network side device to indicate which one or which ones of the first TCI states are used by the target uplink channel.

[0236] It should be noted that in the case where the target TCI state includes at least two first TCI states, the first indication information can not only indicate which two first TCI states, but also indicate which first TCI state corresponds to the two TCI states of the target uplink channel, respectively. For example, assuming that the number of first TCI states is 2, the target uplink channel adopts a repetition transmission mode, if the first indication information is 00, the first one of the two first TCI states can be selected for the repetition transmission of the target uplink channel; if the first indication information is 01, the second one of the two first TCI states can be selected for the repetition transmission of the target uplink channel; if the first indication information is 10, the first one of the two first TCI states is selected as the first TCI state used for the repetition transmission of the target uplink channel, and the second one of the two first TCI states is selected as the second TCI state used for the repetition transmission of the target uplink channel; if the first indication information is 11, the second one of the two first TCI states is selected as the first TCI state used for the repetition transmission of the target uplink channel, and the first one of the two first TCI states is selected as the second TCI state used for the repetition transmission of the target uplink channel.

[0237] Compared with the embodiment in which the terminal determines the K first TCI states arranged in the preset position as the target TCI state of the target uplink channel, the network side device can flexibly configure which one or which ones of the TCI states are used by the target uplink channel of the terminal.

[0238] Optionally, the first indication information is carried in a first signaling field, and the first signaling field is a signaling field in MAC CE signaling or DCI signaling.

[0239] In an embodiment, the first signaling field can be a signaling field in MAC CE signaling used for activating the first TCI state.

[0240] In another embodiment, when the MAC CE signaling activates at least two TCI states, the first signaling field can also be a signaling field in DCI signaling used for indicating the first TCI state.

[0241] In an implementation, the first signaling field can be applicable to DCI format 1_1 or DCI format 1_2.

[0242] In this embodiment, the first indication information can be carried by using an existing MAC CE signaling or a newly added signaling field in DCI signaling, which can reduce signaling overhead.

[0243] It should be noted that in an implementation, the first signaling field can be configured to exist or take effect only when the first indication information is needed, and in other non-essential cases, the first signaling field can not be configured or can be configured but the configuration does not take effect. For example, the first signaling field takes effect or exists when a preset condition is met, and the preset condition includes at least one of the following:

[0244] The network side device configures the first signaling field;

[0245] The network side device indicates at least two first TCI states through DCI signaling;

[0246] Among the TCI code points activated by the MAC CE of the network side device, at least one code point corresponds to at least two TCI states.

[0247] In this embodiment, whether the first signaling field is configured or whether the configuration of the first signaling field takes effect can be determined through a preset condition, so that the terminal will detect the first indication information carried in the first signaling field only when the first signaling field is configured and takes effect, which can reduce unnecessary computing power and resource consumption of the terminal.

[0248] Of course, in implementation, there can also be a case that the first TCI state indicated by the network side device cannot meet the requirements of the target uplink channel on the number, type, associated first identification information, etc. of the TCI state, at this time, the above-mentioned terminal determines the target TCI state of the target uplink channel according to the target information, which can include at least one of the following: the terminal can determine that the target uplink channel adopts the original TCI state (i.e. does not update the TCI state of the target uplink channel), or only one or part of the original TCI state of the target uplink channel is updated to the first TCI state, or the target uplink channel transmission according to the original configuration information (such as: repeated transmission, SFN transmission) of the target uplink channel is stopped, etc.

[0249] As an optional implementation, in a case that the target uplink channel has M TCI states, if the number of the first TCI state 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,

[0250] In a case that the target uplink channel has M TCI states, if N is less than M, the target TCI state is the original M TCI states of the target uplink channel, or the target TCI state is the original (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,

[0251] In a case that the target uplink channel has 1 TCI state, if the number of the first TCI state is at least 1, the target TCI state is at least 1 first TCI state.

[0252] In a case that the target uplink channel has M TCI states, if N is less than M, the target TCI state is the original M TCI states of the target uplink channel, which can be not updating the TCI state of the target uplink channel.

[0253] In a case that the target uplink channel has M TCI states, if N is less than M, the target TCI state is the original (M-N) TCI states of the target uplink channel and the N first TCI states, which can be only updating N TCI states in the original M TCI states of the target uplink channel, and the remaining (M-N) TCI states are not updated.

[0254] In the case that the target uplink channel has M TCI states, if N is less than M, and the target TCI state is the N first TCI states, when the target uplink channel uses 2 uplink TCI states for transmission (for example, repetition transmission or SFN transmission), if the number of first TCI states is 1, it can be determined that the repetition configuration or SFN configuration is invalid, so that the repetition transmission of the target uplink channel is continued using 1 first TCI state or the target uplink channel is transmitted using 1 first TCI state, or the transmission of the target uplink channel is stopped.

[0255] As an optional implementation, in the case that the number of first TCI states is greater than 1:

[0256] The target TCI state includes at least one of the following:

[0257] All first TCI states;

[0258] The network side device indicates at least two first TCI states from all first TCI states for the target uplink channel in the repetition transmission mode or the multi-beam simultaneous transmission mode;

[0259] The network side device indicates one first TCI state from all first TCI states;

[0260] The first TCI state is the same as the TCI state of the first PDCCH, wherein the first PDCCH is used to schedule or trigger the target uplink channel; or the first PDCCH is used to schedule a target PDSCH, and the feedback information of the target PDSCH is carried by the target uplink channel; or the first PDCCH is associated with the target uplink channel;

[0261] The first TCI state corresponding to the first identification information associated with the target uplink channel;

[0262] The first TCI state of each repetition transmission of the target uplink channel, wherein the first TCI state of each repetition transmission of the target uplink channel corresponds to different first identification information respectively;

[0263] At least two first TCI states corresponding to at least two first identification information, wherein the target uplink channel is associated with at least two first identification information;

[0264] at least one first TCI state corresponding to the one first identification information, wherein the target uplink channel is associated with one first identification information (generally, 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 can be understood that one TRP corresponds to two TCI states, and the angles of the two TCI states are close, at this time, the first identification information can be CORESETPoolIndex or channel group identification information);

[0265] at least two first TCI states determined according to the preset correspondence.

[0266] In implementation, the target uplink channel using the repetition transmission mode can be PUCCH repetition and / or PUSCH repetition.

[0267] In related technologies, 3GPP R17 supports a PUSCH repetition transmission scheme in a multi-TRP scenario, which is dynamically scheduled by one DCI in a time division multiplexing (TDM) manner.

[0268] For each PUSCH repetition transmission, multiple transmission beams (spatial relations) corresponding to different TRPs are used for transmission respectively, so as to improve the reliability of PUSCH transmission.

[0269] For PUSCH repetition of Type A (slot-level), one PUSCH repetition transmission refers to one PUSCH transmission occasion in each time slot; for PUSCH repetition of Type B, one PUSCH repetition transmission refers to nominal repetition.

[0270] Two sets of beams (or spatial relations), precoding matrices (TPMIs), 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 flexible exchange of the order of PUSCH repetition transmission beams.

[0271] The mapping relationship between each PUSCH repetition and the beam can be configured by RRC parameters as cyclic mapping and sequential mapping.

[0272] In addition, in related technologies, 3GPP R17 also supports a PUCCH repetition transmission scheme in a multi-TRP scenario.

[0273] If the network activates two beams (spatial relations) for a PUCCH resource or a PUCCH group, each repetition of the PUCCH is transmitted using two beams.

[0274] The mapping relationship between each PUCCH repetition and a beam can be configured by an RRC parameter as cyclic mapping and sequential mapping.

[0275] In the first aspect, in the embodiments of the present application, taking a PUCCH using a repetition or SFN mode as an example, the target TCI state used by the PUCCH can be determined in any of the following manners:

[0276] Manner one: always using at least two first TCI states (i.e., all first TCI states) indicated by a network-side device;

[0277] Manner two: the network-side device indicates at least two first TCI states from the all first TCI states, that is, the network-side device further indicates at least two first TCI states from the multiple first TCI states in the case where the network-side device indicates multiple first TCI states. The specific implementation of further indicating at least two first TCI states from the multiple first TCI states can be indicated by the first indication information in the above embodiments, for example, indicated in a first signaling field in MAC CE or DCI signaling, which will not be described here again;

[0278] Manner three: the PUCCH uses the TCI state of a preset PDCCH (i.e., a first PDCCH). The preset PDCCH can be: a PDCCH scheduling / triggering the PUCCH, a PDCCH on which feedback information (such as a hybrid automatic repeat request acknowledgement (HARQ-ACK)) of a PDSCH scheduled by the preset PDCCH is carried, a PDCCH associated with the PUCCH;

[0279] Manner four: the first TCI state indicated by the network-side device corresponds to first identification information (such as: a channel group, a CORESET group, a PUCCH group, a TRP ID, a CORESETPoolIndex, etc.). For example, according to the arrangement order or position of N first TCI states, the N first TCI states are one-to-one corresponding to N first identification information. In this way, according to the channel group, the CORESET group, the PUCCH group, or the TRP ID to which the PUCCH corresponds, is associated with, or belongs, the first TCI state corresponding to the first identification information associated with the PUCCH can be determined.

[0280] It is worth mentioning that in the case of PUCCH corresponding, associating or belonging to one first identification information, the target TCI state can be determined to include the one first TCI state; in the case of PUCCH corresponding, associating or belonging to at least two first identification information (for example, PUCCH adopts a repeated transmission mode), the target TCI state can be determined to include at least two first TCI states corresponding to the at least two first identification information, so that the at least two first TCI states are respectively used as the TCI state of each repeated transmission of PUCCH, that is, the TCI state of each repeated transmission of PUCCH corresponds to different channel groups / CORESET groups / PUCCH groups / TRP IDs / CORESETPoolIndexes, or in the case of PUCCH SFN, at least two first TCI states (each first TCI state corresponds to different first identification information) in the PUCCH SFN can be determined according to the PUCCH corresponding, associating or belonging to at least two first identification information.

[0281] Mode five: the at least two first TCI states indicated by the network side device have a corresponding relationship with each repeated transmission of PUCCH, and according to the corresponding relationship, the TCI state of each repeated transmission of PUCCH can be determined.

[0282] Mode six: 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.

[0283] If the target uplink channel is associated with one first identification information, the target TCI state includes at least one first TCI state corresponding to the one first identification information.

[0284] For example, assuming that the network-side device configures a PUCCH resource group and indicates two first TCI states, TCI state 1 and TCI state 2, if group 1 corresponds to TCI state 1, group 2 corresponds to TCI state 2, and group 3 corresponds to TCI state 1 and TCI state 2, the network-side device can realize switching of PUCCH transmission between sTRP and mTRP and determine the TCI state of the PUCCH resource by scheduling PUCCH resources in different PUCCH resource groups. The correspondence between the PUCCH resource group and the TCI state can be determined in the following ways: 1) the network-side device explicitly configures the correspondence through signaling; 2) implicitly corresponding according to the order or position of multiple PUCCH resource groups and multiple TCI states, for example: the first TCI state corresponds to the first PUCCH resource group, and the second TCI state corresponds to the second PUCCH resource group. In addition, in implementation, one PUCCH resource can also be configured in two PUCCH resource groups at the same time, and the PUCCH resource can correspond to two TCI states.

[0285] In a seventh manner, in the case where the transmission mode of the target uplink channel is a repetition transmission mode or a multi-beam simultaneous transmission mode, the target TCI state includes at least two first TCI states determined according to a preset correspondence.

[0286] The preset correspondence includes:

[0287] The arrangement order or arrangement position of the first TCI state corresponds to the TCI state of each repetition transmission of the target uplink channel; or

[0288] The arrangement order or arrangement position of the first TCI state corresponds to each TCI state of the target uplink channel.

[0289] In implementation, the preset correspondence can be that the arrangement order or position of the TCI state or the TCI state ID corresponds to the time division multiplexing (TDM) transmission order, etc., which is not limited here.

[0290] The embodiment provides a unified TCI state applicable to mTRP scenarios of repetition or SFN.

[0291] In implementation, multi-TRP transmission can be divided into single-DCI scheduling (sDCI) and multi-DCI (mDCI) scheduling based on control signaling:

[0292] Multi-DCI (mDCI) scheduling: each TRP transmits a respective PDCCH, each PDCCH schedules a respective PDSCH, at this time, multiple CORESETs configured for the UE are associated to different RRC parameter CORESETPoolIndex to correspond to different TRP by using CORESETPoolIndex. At this time, PDSCHs scheduled by two TRPs can be completely overlapped, partially overlapped or not overlapped, and PUSCHs scheduled by two TRPs cannot be overlapped.

[0293] Single-DCI (sDCI) scheduling: PDCCH scheduling a PDSCH is transmitted by one TRP, at this time, multiple CORESETs configured for the UE cannot be associated to different CORESETPoolIndex. In this case, MAC CE activates up to 8 codepoints, at least one codepoint corresponds to two TCI states. When the codepoint corresponding to two TCI states indicated by TCI field in one DCI and indicating that one TCI state contains "QCL-TypeD", it means that the PDSCH scheduled from two TRPs, the PDSCH includes multiple transmission schemes, such as: different layers of data of PDSCH corresponding to two TCI states (scheme 1a, Space Division Multiplexing, SDM); or data on different frequency domain subcarriers corresponding to two TCI states (scheme 2a / 2b, Frequency Division Multiplex, FDM); or each time domain repetition from different TRP (scheme 3 / 4, Time Division Multiplexing, TDM). The specific transmission scheme of the PDSCH is determined by other ways, for example: by high layer parameter configuration or by DCI indicating the number of DMRS code division multiplexing (Code Domain Multiplexing, CDM) groups, which will not be repeated here.

[0294] In the embodiments of the present application, for mDCI, the aperiodic PUCCH resource and the scheduling PDCCH can be divided into one group and correspond to the same TRP. In this way, for joint TCI state, the PUCCH can use the same beam as the scheduling PDCCH (PUCCH follows scheduling PDCCH beam); for separate TCI state, the PUCCH can use the UL beam corresponding to the DL beam of the scheduling PDCCH (for separate TCI, PUCCH use UL beam corresponding to scheduling PDCCH DL beam). That is, in the present embodiment, a unified TCI state applicable to sDCI scheduling and mDCI scheduling in the mTRP scenario is provided.

[0295] In a second aspect, in the embodiments of the present application, for PUSCH in repetition or SFN mode, the target TCI state used by the PUSCH can be determined in any of the following manners:

[0296] Manner one: always use at least two first TCI states (i.e., all first TCI states) indicated by the network side device, for example: assuming that the network side device indicates 2 first TCI states, for PUSCH configured in repetition / SFN transmission mode, the 2 TCI states are the 2 first TCI states indicated by the network side device;

[0297] Manner two: the network side device indicates at least two first TCI states from all first TCI states, that is, the network side device further indicates at least two first TCI states from the multiple first TCI states in the case of indicating multiple first TCI states, for example: through a newly added first signaling field in the DCI signaling for indicating N joint TCI states / separate UL TCI states, to indicate which TCI state or 2 TCI states of the N joint TCI states / separate UL TCI states are used by the PUSCH, and in the case of indicating 2 TCI states, the first signaling field can also indicate the use order of each TCI state; for example: according to the manner listed in manner five of the determination of the target TCI state of PUCCH, the terminal can determine, according to a preset correspondence, that the at least two first TCI states indicated by the network side device are at least two TCI states of the PUSCH in repetition / SFN transmission mode.

[0298] The third mode: the PUSCH configured in the repetition / SFN transmission mode can correspond to two first identification information (such as: channel group, CORESET group, PUCCH resource group or TRP ID) at the same time, at this time, the two TCI states corresponding to the two first identification information indicated by the network side device can be applied to the repetition / SFN PUSCH, wherein the order or position of the TCI states corresponds to the size order of the first identification information one by one. Of course, if the PUSCH corresponds to one first identification information, one TCI state corresponding to the first identification information is used. For example, the repetition transmission is continued by using the one TCI state, or the repetition / SFN transmission mode is ended, or the transmission of the PUSCH is stopped, etc.

[0299] 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 one first identification information, the target TCI state includes one first TCI state corresponding to the one first identification information.

[0300] The fourth mode: at least two first TCI states indicated by the network side device are used as two TCI states of the repetition / SFN PUSCH according to a preset correspondence relationship, wherein the preset correspondence relationship can be that the two first TCI states indicated by the network side device have a corresponding arrangement order or position with the two TCI states of the repetition / SFN PUSCH. The meaning of the preset correspondence relationship is the same as that of the preset correspondence relationship in the fifth mode listed in the determination of the target TCI state used by the PUCCH, which will not be repeated here.

[0301] As an optional implementation, in the case that 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, wherein the first preset TCI state includes at least one of the following:

[0302] The first TCI state arranged in a preset position in all first TCI states;

[0303] The first TCI state corresponding to a preset first identification information;

[0304] The first TCI state indicated by the network side device from all first TCI states.

[0305] In implementation, the preset transmission mode specifically refers to a single-beam transmission mode without repetition transmission. For example, the target uplink channel adopting the preset transmission mode can be a conventional single-beam transmission without repetition and SFN, which can be transmitted to only one TRP.

[0306] Option one: the first TCI state arranged in the preset position in all the first TCI states can be at least one first TCI state arranged in any position such as the first position, the second position, the last position, and the preset position can be determined by one or more of protocol agreement, default first position, network side device update, etc., which is not limited here.

[0307] Option two: the preset first identification information can be a preset channel group, a preset CORESET group, a preset PUCCH resource group, or a preset TRP ID (CORESETPoolIndex), for example, the first channel group, the first CORESET group, the first PUCCH resource group, or the first TRP ID. In implementation, the preset first identification information can be determined by one or more of protocol agreement, default first position, network side device update, etc., which is not limited here.

[0308] Option three: the first TCI state indicated by the network side device from all the first TCI states can be understood as: in addition to indicating at least two first TCI states, the network side device further indicates one or at least two from the at least two first TCI states. For example, the network side device further indicates a target TCI state in the at least two first TCI states through the first indication information, the meaning and function of the first indication information can refer to the explanation of the first indication information in the previous embodiments, which will not be repeated here.

[0309] In this embodiment, the first TCI state in the unified TCI framework that can be shared by multiple channel or reference signal resources can be applied to PUCCH and / or PUSCH adopting the preset transmission mode.

[0310] As an optional implementation, in the case where the number of the first TCI states is greater than one, if the type of the target uplink channel is PUSCH or UL RS resource or UL RS resource set, the target TCI state includes at least one of the following:

[0311] The first TCI state corresponding to the first code point or at least one of the first TCI states corresponding to the first code point, the first code point being a code point indicated by a TCI field in DCI indicating the first TCI state;

[0312] a first TCI state corresponding to the first identification information preset;

[0313] a first TCI state same as a TCI state of a PDCCH where DCI scheduling the target uplink channel is located;

[0314] a first TCI state corresponding to the first identification information associated with the PDCCH where DCI scheduling the target uplink channel is located;

[0315] a first TCI state corresponding to the first identification information associated with the target uplink channel.

[0316] Solution one: the first code point is a TCI code point indicated by a TCI field on DCI signaling, in a case where the first code point corresponds to one first TCI state, the target TCI state is the one first TCI state; in a case where the first code point corresponds to two first TCI states, the target TCI state can be one (for example, a TCI state arranged in a preset position) or two of the two first TCI states, specifically, in a case where PUSCH has two TCI states, it can be determined that the target TCI state can be the two first TCI states, in a case where PUSCH has one TCI state, it can be determined that the target TCI state can be one of the two first TCI states;

[0317] Solution two: each first TCI state can correspond to a respective first identification information, for example, a channel group, a CORESET group or a TRP ID, etc., the first identification information preset can be a first channel group / a first CORESET group / a first TRP ID, or other first identification information in a preset order or position, such as a second channel group / a second CORESET group / a second TRP ID, in implementation, the first identification information preset can be first identification information determined according to a default rule or according to an indication of a network side device, and after the first identification information is determined, the TCI state corresponding to the first identification information can be applied to PUSCH;

[0318] Solution three: in implementation, the target TCI state can include a first TCI state same as a TCI state of a PDCCH where DCI scheduling or triggering the target uplink channel is located, only in a case where the PDCCH and a transmission mode of the target uplink channel are the same. For example, PUSCH is SFN, and the PDCCH also needs to be SFN, then this solution three is applied;

[0319] Of course, in the case that the target uplink channel and the PDCCH where the DCI scheduling the target uplink channel are of different transmission modes, the target uplink channel can also use the TCI state of the PDCCH where the DCI scheduling the target uplink channel or part of the TCI state of the PDCCH where the DCI scheduling the target uplink channel.

[0320] Optionally, in the case that the transmission mode of the PDCCH where the DCI indicating the first TCI state or the PDCCH scheduling the target uplink channel is a repetition transmission mode or a multi-beam simultaneous transmission mode, the target TCI state includes:

[0321] the same first TCI state as the TCI state of the PDCCH using repetition transmission or multi-beam simultaneous transmission, or at least one of the first TCI states used by the PDCCH for repetition transmission or multi-beam simultaneous transmission.

[0322] In the embodiment, in the case that the transmission mode of the PDCCH where the DCI indicating the first TCI state or the PDCCH scheduling the target uplink channel is a repetition transmission mode or a multi-beam simultaneous transmission mode, the PDCCH using repetition transmission or multi-beam simultaneous transmission can have at least two TCI states, and in this case, the target uplink channel can use one or at least two of the at least two TCI states, for example, when the PUSCH needs 2 TCI states, the PUSCH can use 2 TCI states of the PDCCH using repetition transmission or multi-beam simultaneous transmission.

[0323] Option 4: The target TCI state can be a first TCI state associated with, corresponding to, or belonging to a channel group / CORESET group / TRP ID (CORESETPoolIndex) corresponding to the PDCCH where the DCI scheduling the target uplink channel is located;

[0324] Option 5: The target uplink channel can also use a first TCI state associated with, corresponding to, or belonging to a channel group / TRP ID (CORESETPoolIndex) corresponding to the target uplink channel.

[0325] Through the above embodiments, the unified TCI framework that can be used in the mTRP scenario and indicated by the network side device can be applied to the PUSCH or UL RS resource or UL RS resource set.

[0326] As an optional embodiment, in the case that the number of the first TCI states is greater than 1, if the type of the target uplink channel is a PUSCH configured with uplink configuration grant type 1, the target TCI state includes at least one of:

[0327] a first TCI state corresponding to a preset CORESETPoolIndex, the preset CORESETPoolIndex including a CORESETPoolIndex corresponding to signaling of the PUSCH configuration information, or the preset CORESETPoolIndex being a preset value of the CORESETPoolIndex;

[0328] a first TCI state arranged at a preset position in all the first TCI states;

[0329] a first TCI state corresponding to a TCI state identity indicated by the configuration information of the uplink configured grant type 1 PUSCH or a CORESETPoolIndex indicated by the configuration information of the uplink configured grant type 1 PUSCH;

[0330] a first TCI state of a preset SRS resource, the preset SRS resource being an SRS resource indicated by a sounding reference signal SRS resource indication SRI in the configuration information of the uplink configured grant type 1 PUSCH;

[0331] at least one first TCI state determined according to a power control parameter in the configuration information of the uplink configured grant type 1 PUSCH.

[0332] Solution one: the preset CORESETPoolIndex can be used as a preset TRP ID, the preset TRP being a TRP corresponding to the signaling of the PUSCH configuration information, or the preset TRP being a TRP with a minimum ID, such as a minimum CORESETPoolIndex (that is, the preset value of the CORESETPoolIndex can be a CORESETPoolIndex with a minimum value), and the solution one can be used in an mDCI mode;

[0333] Solution two: a solution of using a first TCI state arranged at a preset position in all the first TCI states for the PUSCH configured with the uplink configured grant type 1, which can be applied to an sDCI mode and an mDCI mode;

[0334] Scheme three: the network side device can indicate to the terminal through the first signaling (or in the same way as the first signaling field in the above implementation) which TCI state the PUSCH configured with UL configured grant type1 can use, or indicate which TRPID (CORESETPoolIndex) corresponding TCI state the PUSCH configured with UL configured grant type1 can use. The first signaling can be configured in the configuration information of CG type1 PUSCH, such as the configuration index (config index) information of configured grant. For example: the first signaling can use various bit sequence values to represent which TCI state or 2 TCI states are used, and the bit sequence values can be: no configuration or default first signaling bit, 0 or 1 indicating using a certain TCI state, 00 / 01 / 10 / 11 indicating using 1 or 2 TCI states (even indicating the use order of 2 TCI states), and the specific bits and the corresponding relationship of the indication scheme are similar to the first indication information in the first signaling field, which will not be described here. Scheme three can be used in sDCI mode and mDCI mode;

[0335] Scheme four: the PUSCH configured with UL configured grant type1 can use the parameters in the configuration information to determine the target TCI state: such as the TCI state of the SRS resource indicated by the SRS resource indicator (SRS resource indicator, SRS resource indicator) SRS resource. Scheme four can be used in sDCI mode and mDCI mode;

[0336] Scheme five: at least one of the first TCI states determined according to the power control parameters in the configuration information of the uplink configured grant type1 PUSCH can be: according to the number of power control parameters (such as: open loop receiver power target value P0, partial path loss compensation factor a, close loop index (Close Loop Index, CLI)) in the configuration information to determine to use a certain one (default one, or one indicated by the first signaling) or at least two of the at least two first TCI states indicated by the network side device. It should be noted that in implementation, the configured grant CG PUSCH does not use the power control parameter (Power control, PC) set associated with the at least two first TCI states indicated by the network side device. Scheme five can be used in sDCI mode and mDCI mode.

[0337] Through the above implementation, the unified TCI framework indicated by the network side device and applicable to the mTRP scenario can be applied to the configured grant PUSCH.

[0338] As an optional implementation, in the case where the number of the first TCI states is greater than 1, if the type of the target uplink channel is an UL RS resource or resource set, the target TCI state includes:

[0339] a first TCI state associated with the same first identification information as the UL RS resource or resource set, for example, two first TCI states indicated by the network side device are respectively associated with respective first identification information (channel group, CORESET group, PUCCH resource group or TRP ID), and then the UL RS resource or resource set can determine which of the two first TCI states to use according to the first identification information associated with itself, i.e., use the first TCI state corresponding to the first identification information associated with itself;

[0340] a first TCI state same as the TCI state of the PDCCH triggering the UL RS resource or resource set, in which the UL RS resource or resource set can be aperiodic in implementation;

[0341] a first TCI state corresponding to the UL RS resource or resource set, wherein each UL RS resource or resource set has a respective corresponding TCI state, for example, two first TCI states indicated by the network side device correspond to respective UL RS resources or resource sets, such as the network configuring two UL RS resource sets, the first first TCI state is used for all UL RS resources in the first UL RS resource set, and the second first TCI state is used for all UL RS resources in the second UL RS resource set, such as the network configuring one UL RS resource set and the resource set containing two UL RS resources, the first first TCI state is used for the first UL RS resource in the UL RS resource set, and the second first TCI state is used for the second UL RS resource in the UL RS resource set.

[0342] In this embodiment, the unified TCI framework indicated by the network side device and applicable to the mTRP scenario can be applied to the UL RS resource or resource set.

[0343] It is worth mentioning that in implementation, there is also a case where the network side device only indicates one first TCI state, for example: the network side device indicates 1 joint TCI state or 1 separate UL TCI state as the first TCI state. At this time, the PDCCH where the DCI indicating the first TCI state is located can use various transmission modes (for example: preset transmission mode (non-repetition and non-SFN), SFN transmission mode, repetition transmission mode).

[0344] In this scenario, the beam information determination scheme of various uplink channels is as follows:

[0345] As an optional implementation, 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 repetition 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 following:

[0346] The terminal determines that the repetition transmission mode of the target uplink channel or the configuration of using at least two uplink TCI states for simultaneous transmission is invalid;

[0347] The terminal determines that the target uplink channel is transmitted based on the first TCI state;

[0348] The terminal determines that the target TCI state includes at least two original TCI states of the target uplink channel;

[0349] The terminal determines to update a third preset TCI state in the at least two original TCI states of the target uplink channel to the first TCI state; wherein the third preset TCI state corresponds to the same first identification information as the first TCI state; or the preset TCI state is one located in a preset position in the at least two original TCI states of the target uplink channel; or the third preset TCI state is associated with the first TCI state.

[0350] In this embodiment, when the transmission mode of the target uplink channel is a repetition transmission mode or an SFN transmission mode, and the target uplink channel originally uses 2 TCI states, if the network side device only indicates 1 first TCI state, taking the target uplink channel as a PUCCH for example, the target TCI state of the PUCCH can be determined in the following manner (it should be noted that this embodiment can also be applicable to other types of channels such as PUSCH, and here the PUCCH is taken as an example for illustration, without constituting a specific limitation):

[0351] 1) For PUCCH with repetition / SFN transmission mode, if the network device indicates 1 first TCI state, the PUCCH repetition / SFN configuration is invalid, i.e., repetition = 1 or the PUCCH is no longer transmitted.

[0352] 2) For PUCCH with repetition transmission mode, the PUCCH repetition can continue to use 1 first TCI state indicated by the network device.

[0353] 3) The PUCCH with repetition / SFN does not update the TCI state, i.e., uses the original 2 TCI states of the PUCCH with repetition / SFN.

[0354] 4) The third preset TCI state in the original 2 TCI states of the PUCCH with repetition / SFN is updated to 1 first TCI state indicated by the network device. The third preset TCI state can be a TCI state satisfying at least one of the following conditions:

[0355] Corresponding to the same first identification information (channel group, CORESET group, PUCCH resource group or TRP ID) as the 1 first TCI state indicated by the network device;

[0356] It is one (such as the first one) of the original 2 TCI states of the PUCCH with repetition / SFN;

[0357] In the original TCI state, the TCI state has a corresponding relationship with the 1 first TCI state indicated by the network device.

[0358] In this embodiment, the network device only indicates 1 first TCI state, so when the number of TCI states of the PUCCH with repetition / SFN does not meet the requirement, the network device indicates that the unified TCI framework in the mTRP scenario can be applied to the PUCCH with repetition / SFN in the above manner.

[0359] As an optional implementation, in the case where the number of first TCI states is equal to 1, the terminal determines the target TCI state of the target uplink channel according to the target information, including at least one of the following:

[0360] In the case where the target uplink channel corresponds to the same first identification information as the first TCI state, the terminal determines that the target TCI state includes the first TCI state.

[0361] In a case where the first identification information corresponding to the target uplink channel and the first TCI state is different, the terminal determines that the target TCI state includes a TCI state originally corresponding to the target uplink channel or determines that the target uplink channel stops transmission.

[0362] The terminal determines that the target TCI state includes a TCI state of a PDCCH scheduling or triggering the target uplink channel.

[0363] In this embodiment, it is assumed that the target uplink channel is a PUSCH or an UL RS resource, and if the network side device only indicates one first TCI state, the following method can be used to determine the target TCI state of the PUSCH or the UL RS resource:

[0364] In a case where the first identification information corresponding to the target uplink channel and the first TCI state is different, the terminal determines that the target TCI state includes a TCI state originally corresponding to the target uplink channel or determines that the target uplink channel stops transmission.

[0365] It should be noted that the above scheme one can also be applied to determine the target TCI state of the PUCCH, which will not be described here.

[0366] In the second scheme, the TCI state of the PDCCH scheduling or triggering the target uplink channel can be understood as using the TCI state of the PDCCH scheduling the PUSCH or triggering the UL RS resource. In implementation, in the case that the UL RS resource is aperiodic, the TCI state of the PDCCH triggering the UL RS resource can be used.

[0367] In an embodiment, in the case that the PUSCH or the UL RS resource originally uses two TCI states for transmission and the network side device only indicates one first TCI state, the transmission mode of the PUSCH or the UL RS resource can be changed, for example, the transmission mode of the PUSCH or the UL RS resource is changed from the repetition transmission mode requiring the use of two TCI states for transmission or the mode of simultaneous transmission of multiple beams to the single-beam transmission mode requiring the use of only one TCI state for transmission, or the original two TCI states for transmission of the PUSCH or the UL RS resource are used, or the original one TCI state for transmission of the PUSCH or the UL RS resource and the one first TCI state indicated by the network side device are used for transmission.

[0368] As an optional implementation, in the case that the number of the first TCI states is equal to one and the target uplink channel originally has at least two TCI states, the terminal determines the target TCI state of the target uplink channel according to the target information, including:

[0369] The terminal determines that the target TCI state is the first TCI state; or

[0370] The terminal determines that the target TCI state includes the original at least two TCI states of the target uplink channel; or

[0371] The terminal determines to update a fourth preset TCI state in the original at least two TCI states of the target uplink channel to the first TCI state; wherein 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 arranged in a preset position in the original at least two TCI states of the target uplink channel, or the fourth preset TCI state is associated with the first TCI state.

[0372] In this embodiment, assuming that the target uplink channel is PUSCH or UL RS resource or UL RS resource set, and the target uplink channel originally uses two TCI states for transmission, and the network side device only indicates one first TCI state, one TCI state indicated by the network can be directly applied (i.e., changed to a single-beam transmission mode), or the fourth preset TCI state is updated to one TCI state indicated by the network, or no TCI state update is performed (i.e., the original one TCI state of the PUSCH or UL RS resource is continued to be used for transmission).

[0373] Similar to the third preset TCI state described above, the fourth preset TCI state can correspond to the same first identification information (such as a channel group, a CORESET group, a PUCCH resource group, or a TRP ID) as the one first TCI state indicated by the network side device, or the fourth preset TCI state can be one of the two TCI states originally used by the target uplink channel arranged in a preset position (such as the first position), or the fourth preset TCI state can be associated with the one first TCI state indicated by the network side device.

[0374] Optionally, in the case where the type of the target uplink channel is UL RS resource or resource set, the terminal determines that the target TCI state of the target uplink channel is the first TCI state, including:

[0375] The terminal determines that the target TCI state of all RS resources in the UL RS resource or resource set associated with the first TCI state includes the first TCI state; or

[0376] The terminal determines that the target TCI state of all RS resources in the UL RS resource or resource set corresponding to the same first identification information as the first TCI state includes the first TCI state.

[0377] In this embodiment, for the UL RS resource or resource set, only the TCI state of all RS resources in the UL RS resource or resource set having an association relationship with the one first TCI state indicated by the network side device is updated.

[0378] As an optional implementation, in the case where the transmission mode of the target uplink channel is a repetition transmission mode, or the type of the target uplink channel is PUSCH or UL RS resource and the target DCI scheduling the target uplink channel simultaneously schedules at least two PUSCHs or at least two UL RS resources;

[0379] After the terminal obtains the common beam information indicated by the network side device, the method further includes:

[0380] The terminal sends first feedback information to the network side device at a first time, and the first feedback information is used to indicate that the terminal has correctly received the common beam information.

[0381] The terminal determines that the repeated transmission of the target uplink channel at a time slot after a second time or the PUSCH or UL RS resource scheduled by the target DCI at the time slot after the second time uses the common beam information for transmission, where the time difference between the second time and the first time is a first preset time length, and the second time is later than the first time.

[0382] The second time can be the time point at which the common beam information takes effect, in other words, the first preset time length can be a preset time length or a time length configured by the network side device, which can specifically include the time length between the time at which the terminal sends the first feedback information to the network side device and the time at which the network side device and the terminal start to apply the common beam information. In this way, the terminal can default that the common beam information takes effect after the first preset time length after sending the first feedback information. Correspondingly, the network side device can confirm that the terminal has correctly received the common beam information based on the first feedback information after receiving the first feedback information from the terminal, and can default that the common beam information takes effect after the first preset time length after receiving the first feedback information.

[0383] In implementation, if the channel or reference signal corresponding to the common beam information is a repeatedly transmitted channel or signal, or multiple PUSCHs scheduled by one DCI, for example, PUCCH repetition, PUSCH repetition, multi-slot PUSCH, multiple PUSCHs scheduled by single DCI, etc., the repeated transmission of the channel or signal transmitted at the time slot after the first preset time length from the transmission time of the first feedback information, or part of the at least two PUSCHs scheduled by the one DCI can use the common beam information. That is, the above various channels are transmitted across multiple slots, and if a certain slot in the multiple slots is the time at which the common beam information takes effect, the above various channels use the newly indicated common beam information of the network for transmission in the slots after the time at which the common beam information takes effect. For example, assuming that the transmission mode of the target uplink channel is a repeated transmission mode, and the four repeated transmissions thereof correspond to time slot 1, time slot 2, time slot 3 and time slot 4 respectively, and the time at which the common beam information takes effect is time slot 3, the target uplink channel can use the common beam information (i.e., the first TCI state) at time slot 3 and time slot 4, and use the original beam information (i.e., the original TCI state) of the target uplink channel at time slot 1 and time slot 2.

[0384] It should be noted that the first feedback information can specifically refer to acknowledgement (ACK) information of receiving the common beam information, and in the case that the terminal sends negative acknowledgement (NACK) information of receiving the common beam information, the terminal and the network side device can determine that the common beam information is invalid.

[0385] In implementation, if the transmission mode of the target uplink channel is a repetition transmission mode, the multiple repetition transmissions of the target uplink channel can span multiple time slots; or if at least two PUSCHs are scheduled by one DCI, the at least two PUSCHs can be transmitted in different time slots. In this way, there is a possibility that the validity time of the common beam information is located within the multiple time slots spanned by the target uplink channel, and in the embodiment, after the common beam information is valid, the common beam information can be used to transmit part of the repetition transmission of the target uplink channel or part of the PUSCH scheduled by one DCI.

[0386] In the embodiment of the present application, for the application of R17 unified TCI framework in mTRP scenarios, when the network side device indicates one or more joint / separate TCI states, how to apply to repetition, SFN and conventional single-beam transmission PUCCH, PUSCH, UL RS resource and UL RS resource set is designed. The scheme of applying unified TCI framework in multi-TRP scenarios can determine the beam information of the uplink channel, UL RS resource or UL RS resource set under various transmission modes according to the common beam information indicated by the network side device, so as to ensure the consistency of the understanding of the used beams between the network side device and the terminal.

[0387] Please refer to Figure 3 , another uplink TCI state determination method provided by the embodiment of the present application, the biggest difference between the method and the method embodiment as shown in Figure 2 , the execution subject of the method embodiment as shown in Figure 2 , and the execution subject of the method embodiment as shown in Figure 3 , and each step executed by the network side device is the same as or corresponding to each step executed by the terminal in the method embodiment as shown in Figure 2 , the execution subject of the method embodiment as shown in Figure 3 , the corresponding explanation in the method embodiment as shown in Figure 2 , the corresponding explanation in the method embodiment as shown in

[0388] As Figure 3As shown, the uplink TCI state determination method applicable to the network side device can include the following steps:

[0389] Step 301, the network side device indicates the common beam information to the terminal, the common beam information includes N first transmission configuration indication TCI states, the first TCI state is a joint TCI state or an independent uplink UL TCI state, N is an integer greater than or equal to 1.

[0390] Step 302, the network side device determines the target TCI state of the target uplink channel according to the target information. Wherein, the target information includes at least one of the following:

[0391] The number of the first TCI state;

[0392] The arrangement order or position of the first TCI state;

[0393] The correspondence between the first TCI state and the first identification information;

[0394] The type of the target uplink channel;

[0395] The transmission mode of the target uplink channel;

[0396] The time domain behavior of the target uplink channel or the time domain behavior of the information carried by the target uplink channel;

[0397] The number of the first identification information corresponding to the target uplink channel;

[0398] The value of the first identification information corresponding to the target uplink channel;

[0399] Wherein, the first identification information includes at least one of the following:

[0400] Control resource set CORESET identification information;

[0401] CORESET pool identification CORESETPoolIndex;

[0402] Transmission and reception point TRP identification ID information;

[0403] Channel group identification information;

[0404] CORESET group identification information;

[0405] Physical uplink control channel PUCCH resource group identification information.

[0406] Optionally, in the case that the target information includes the number of the first TCI state, the network side device determines the target TCI state of the target uplink channel according to the target information, including:

[0407] In a case that the terminal adopts single-beam transmission, 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,

[0408] In a case that the terminal adopts single-beam transmission, if the number of the first TCI states is at least two, the network-side device determines that the transmission mode of the target uplink channel is single-beam transmission or repetition transmission mode or multi-beam simultaneous transmission mode; or,

[0409] In a case that the terminal adopts repetition transmission mode or multi-beam simultaneous transmission mode, 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 the repetition transmission mode or multi-beam simultaneous transmission mode; or,

[0410] In a case that the terminal adopts repetition transmission mode or multi-beam simultaneous transmission mode, if the number of the first TCI states is at least two, the network-side device determines that the transmission mode of the target uplink channel is the repetition transmission mode or multi-beam simultaneous transmission mode.

[0411] 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, the network-side device determines the target TCI state of the target uplink channel based on the first TCI states, comprising:

[0412] The network-side device determines K first TCI states arranged in a preset position as the target TCI state of the target uplink channel; or,

[0413] The network-side device determines K first TCI states from all the first TCI states as the target TCI state, and sends first indication information to the terminal, wherein the first indication information is used to indicate the K first TCI states.

[0414] Optionally, the first indication information is carried in a first signaling domain, and the first signaling domain is a signaling domain in a medium access control (MAC) control element (CE) signaling or a DCI signaling.

[0415] Optionally, 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,

[0416] In a case where the target uplink channel has M TCI states, if N is less than M, the target TCI state is the original M TCI states of the target uplink channel, or the target TCI state is the original (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

[0417] In a case where 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.

[0418] Optionally, the target information further includes a transmission mode of the target uplink channel, and the transmission mode includes: a preset transmission mode, a repeated transmission mode, a multi-beam simultaneous transmission mode, or a transmission mode dynamically switched among the preset transmission mode, the repeated transmission mode, and the multi-beam simultaneous transmission mode, wherein the preset transmission mode is single-beam transmission without repetition.

[0419] The network-side device determines a target TCI state of a target uplink channel according to target information, including:

[0420] The network-side device determines the target TCI state of the target uplink channel from the first TCI states according to a transmission mode of the target uplink channel;

[0421] The method further includes:

[0422] The network-side device sends second indication information to the terminal, wherein the second indication information is used to indicate the transmission mode of the target uplink channel.

[0423] Optionally, the type of the target uplink channel includes at least one of the following: a physical uplink control channel (PUCCH) and a physical uplink shared channel (PUSCH), and an UL reference signal (RS) resource.

[0424] Optionally, the PUCCH includes at least one of the following:

[0425] Any PUCCH;

[0426] A PUCCH scheduled or associated with a preset physical downlink control channel (PDCCH);

[0427] A PUCCH dedicated to the terminal;

[0428] And / or,

[0429] The PUSCH includes at least one of the following:

[0430] Any PUSCH;

[0431] a preset PDCCH scheduling or associated PUSCH;

[0432] a dynamically scheduled PUSCH;

[0433] a terminal-specific PUSCH;

[0434] a configured grant PUSCH.

[0435] Optionally, the preset PDCCH comprises at least one of:

[0436] all PDCCHs, PDCCHs on terminal-specific control resource sets (CORESETs), PDCCHs on CORESETs associated with only terminal-specific search spaces (USSs), PDCCHs on CORESETs associated with both USSs and common search spaces (CSSs), PDCCHs on CORESETs associated with only CSSs, PDCCHs on CORESETs other than CORESET#0.

[0437] Optionally, in a case where the number of the first TCI states is greater than 1:

[0438] the target TCI state comprises at least one of:

[0439] all the first TCI states;

[0440] at least two first TCI states indicated by the network-side device from all the first TCI states, for a target uplink channel in a repetition transmission mode or a multi-beam simultaneous transmission mode;

[0441] one first TCI state indicated by the network-side device from all the first TCI states;

[0442] a first TCI state same as 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;

[0443] the target TCI state comprises a first TCI state corresponding to the first identification information associated with the target uplink channel;

[0444] the target TCI state comprises a first TCI state of each repetition transmission of the target uplink channel, wherein the first TCI state of each repetition transmission of the target uplink channel respectively corresponds to different first identification information;

[0445] 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;

[0446] 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;

[0447] at least two first TCI states determined according to a preset correspondence.

[0448] Optionally, the preset correspondence comprises:

[0449] the arrangement order or arrangement position of the first TCI state corresponds to the TCI state of each time of repeated transmission of the target uplink channel; or,

[0450] the arrangement order or arrangement position of the first TCI state corresponds to each TCI state of the target uplink channel.

[0451] Optionally, in the case that 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 comprises a first preset TCI state, wherein the first preset TCI state comprises at least one of the following:

[0452] the first TCI state arranged in a preset position in all the first TCI states;

[0453] the first TCI state corresponding to a preset first identification information;

[0454] the first TCI state indicated by the network side device from all the first TCI states.

[0455] Optionally, in the case that the number of the first TCI states is greater than 1, if the time domain behavior of the target uplink channel is a periodic uplink channel or the time domain behavior of the information carried by the target uplink channel is periodic information, the target TCI state comprises at least one of the following:

[0456] the TCI state other than the first TCI state in a TCI state pool, or the original TCI state of the target uplink channel; or,

[0457] the first TCI state corresponding to the first identification information associated with the target uplink channel; or,

[0458] a preset first TCI state; or,

[0459] the first TCI state indicated by the third indication information from the network side device; or,

[0460] a second preset TCI state;

[0461] The second preset TCI state includes at least one of the following:

[0462] all the first TCI states arranged in a preset position in the first TCI states;

[0463] The first TCI state corresponding to the preset first identification information.

[0464] Optionally, in the case where 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 or UL RS resource set, the target TCI state includes at least one of the following:

[0465] The first TCI state corresponding to the first code point or at least one of the first TCI states corresponding to the first code point, the first code point being a code point indicated by a TCI field in DCI indicating the first TCI state;

[0466] The first TCI state corresponding to the preset first identification information;

[0467] The first TCI state same as the TCI state of the PDCCH scheduling the DCI of the target uplink channel;

[0468] The first TCI state corresponding to the first identification information associated with the PDCCH scheduling the DCI of the target uplink channel;

[0469] The first TCI state corresponding to the first identification information associated with the target uplink channel.

[0470] Optionally, in the case where the transmission mode of the PDCCH where the DCI indicating the first TCI state is located or the PDCCH scheduling the target uplink channel is a repetition transmission mode or a multi-beam simultaneous transmission mode, the target TCI state includes:

[0471] The first TCI state same as the TCI state of the PDCCH in repetition transmission or multi-beam simultaneous transmission, or at least one of the first TCI states used for PDCCH repetition transmission or multi-beam simultaneous transmission.

[0472] Optionally, in the case where the number of the first TCI states is greater than 1, if the type of the target uplink channel is PUSCH configured with uplink configured grant type 1, the target TCI state includes at least one of the following:

[0473] a first TCI state corresponding to a preset CORESETPoolIndex, the preset CORESETPoolIndex including a CORESETPoolIndex corresponding to signaling of the PUSCH configuration information, or the preset CORESETPoolIndex being a preset value of the CORESETPoolIndex;

[0474] a first TCI state arranged at a preset position among all the first TCI states;

[0475] a first TCI state corresponding to a TCI state indicated by the configuration information of the uplink configured grant type 1 PUSCH or a CORESETPoolIndex indicated by the configuration information of the uplink configured grant type 1 PUSCH;

[0476] a first TCI state of a preset SRS resource, the preset SRS resource being an SRS resource indicated by a sounding reference signal SRS resource indication SRI in the configuration information of the uplink configured grant type 1 PUSCH;

[0477] at least one first TCI state determined according to a power control parameter in the configuration information of the uplink configured grant type 1 PUSCH.

[0478] Optionally, in a case where the number of the first TCI states is greater than 1, if the type of the target uplink channel is an UL RS resource or a resource set, the target TCI state includes:

[0479] a first TCI state having the same first identification information as the UL RS resource or the resource set;

[0480] a first TCI state same as a TCI state of a PDCCH triggering the UL RS resource or the resource set;

[0481] a first TCI state corresponding to the UL RS resource or the resource set, wherein each UL RS resource or resource set has a respective corresponding TCI state.

[0482] Optionally, in a case where the number of the first TCI states is equal to 1, if a transmission mode of the target uplink channel is a repetition transmission mode or a multi-beam simultaneous transmission mode, the network side device determines a target TCI state of the target uplink channel according to target information, including at least one of:

[0483] the network side device determines that a configuration of the repetition transmission mode or the multi-beam simultaneous transmission mode of the target uplink channel is invalid;

[0484] The network-side device determines that the target uplink channel is transmitted based on the first TCI state.

[0485] The network-side device determines that the target TCI state includes at least two original TCI states of the target uplink channel.

[0486] The network-side device determines to update a third preset TCI state in the at least two original TCI states of the target uplink channel to the first TCI state; wherein 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 in the at least two original TCI states of the target uplink channel located in a preset position; or the third preset TCI state is associated with the first TCI state.

[0487] Optionally, in the case where the number of the first TCI states is equal to 1, the network-side device determines a target TCI state of a target uplink channel according to target information, including at least one of the following:

[0488] In the case where the target uplink channel corresponds to the same first identification information as the first TCI state, the network-side device determines that the target TCI state includes the first TCI state.

[0489] In the case where the target uplink channel corresponds to different first identification information from the first TCI state, the network-side device determines that the target TCI state includes an original TCI state of the target uplink channel or determines that the PUSCH or UL RS stops transmission.

[0490] The network-side device determines that the target TCI state includes a TCI state of a PDCCH scheduling or triggering the target uplink channel.

[0491] Or,

[0492] 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 network-side device determines a target TCI state of the target uplink channel according to target information, including:

[0493] The network-side device determines that the target TCI state is the first TCI state; or,

[0494] The network-side device determines that the target TCI state includes at least two original TCI states of the target uplink channel; or,

[0495] The network side device determines to update a fourth preset TCI state in the original at least two TCI states of the target uplink channel to the first TCI state; wherein 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 arranged in a preset position in the original at least two TCI states of the target uplink channel, or the fourth preset TCI state is associated with the first TCI state.

[0496] Optionally, in the case where the type of the target uplink channel is UL RS resource or resource set, the network side device determines that the target TCI state is the first TCI state, comprising:

[0497] The network side device determines that the target TCI state of all RS resources in the UL RS resource or resource set associated with the first TCI state includes the first TCI state; or

[0498] The network side device determines that the target TCI state of all RS resources in the UL RS resource or resource set corresponding to the same first identification information as the first TCI state includes the first TCI state.

[0499] Optionally, in the case where the transmission mode of the target uplink channel is a repetition transmission mode, or the type of the target uplink channel is PUSCH or UL RS resource and the target DCI scheduling the target uplink channel simultaneously schedules at least two PUSCHs or at least two UL RS resources;

[0500] After the network side device obtains the network side device indicated common beam information from the terminal, the method further comprises:

[0501] The network side device receives first feedback information from the terminal at a second time, and the first feedback information is used to indicate that the terminal has correctly received the common beam information;

[0502] The network side device configures the common beam information to take effect based on the first feedback information;

[0503] The network side device determines that the repetition transmission of the target uplink channel in the time slot after the second time or the PUSCH or UL RS resource scheduled by the target DCI in the time slot after the second time uses the common beam information for transmission, wherein the second time is the taking effect time of the common beam information.

[0504] In the embodiments of the present application, a unified TCI framework scheme applicable in the mTRP scenario is proposed, so that the R17 unified TCI framework can be applied to the mTRP scenario, and when the network side device indicates one or more joint / separate TCI states, how to apply the beam determination scheme of the repetition, SFN, PDCCH and other uplink channels and UL RS resources or UL RS resource sets in the conventional single-beam transmission to determine the beam information of the uplink channel or UL RS resource or UL RS resource set in various transmission modes according to the unified TCI state (i.e., the first TCI state) indicated by the network side device, so as to ensure the consistency of the understanding of the used beams between the network side device and the terminal.

[0505] The uplink TCI state determination method provided by the embodiments of the present application can be executed by an uplink TCI state determination device. The uplink TCI state determination device provided by the embodiments of the present application is described by taking the uplink TCI state determination device as an example.

[0506] In one embodiment, if the uplink TCI state determination device is applied to a terminal, as shown in FIG. 4, the uplink TCI state determination device 400 can include the following modules: Figure 4

[0507] The first acquisition module 401 is configured to acquire the common beam information indicated by the network side device, wherein the common beam information includes N first transmission configuration indication (TCI) states, the first TCI state is a joint TCI state or an independent uplink (UL) TCI state, N is an integer greater than or equal to 1.

[0508] The first determination module 402 is configured to determine a target TCI state of a target uplink channel according to target information, wherein the target information includes at least one of the following:

[0509] The number of the first TCI states;

[0510] The arrangement order or position of the first TCI states;

[0511] The correspondence between the first TCI states and the first identification information;

[0512] The type of the target uplink channel;

[0513] The transmission mode of the target uplink channel;

[0514] The time domain behavior of the target uplink channel or the time domain behavior of the information carried by the target uplink channel; ​

[0515] a quantity of the first identification information corresponding to the target uplink channel;

[0516] a value of the first identification information corresponding to the target uplink channel;

[0517] The first identification information includes at least one of the following:

[0518] control resource set CORESET identification information;

[0519] CORESET pool identification CORESETPoolIndex;

[0520] transmission and reception point TRP identification ID information;

[0521] channel group identification information;

[0522] CORESET group identification information;

[0523] physical uplink control channel PUCCH resource group identification information.

[0524] Optionally, in a case where the target information includes the quantity of the first TCI state, the first determination module 402 is specifically configured to:

[0525] in a case where the terminal adopts single-beam transmission, if the quantity of the first TCI state is one, determine that the transmission mode of the target uplink channel is single-beam transmission; or

[0526] in a case where the terminal adopts single-beam transmission, if the quantity of the first TCI state is at least two, determine that the transmission mode of the target uplink channel is single-beam transmission or a repetition transmission mode or a multi-beam simultaneous transmission mode; or

[0527] in a case where the terminal adopts a repetition transmission mode or a multi-beam simultaneous transmission mode, if the quantity of the first TCI state is one, determine that the transmission mode of the target uplink channel is single-beam transmission or the repetition transmission mode or the multi-beam simultaneous transmission mode; or

[0528] in a case where the terminal adopts a repetition transmission mode or a multi-beam simultaneous transmission mode, if the quantity of the first TCI state is at least two, determine that the transmission mode of the target uplink channel is the repetition transmission mode or the multi-beam simultaneous transmission mode.

[0529] Optionally, in a case where the quantity of the first TCI state is greater than K, K is the quantity of the TCI state required by the target uplink channel, the first determination module 402 is specifically configured to:

[0530] determining K first TCI states arranged in the preset position as target TCI states of the target uplink channel; or

[0531] determining the target TCI states of the target uplink channel according to an indication of first indication information from the network side device, wherein the first indication information is used to indicate K first TCI states.

[0532] Optionally, the first indication information is carried in a first signaling field, and the first signaling field is a signaling field in a medium access control (MAC) control element (CE) signaling or a DCI signaling.

[0533] Optionally, the first signaling field is valid or exists when a preset condition is met, and the preset condition includes at least one of the following:

[0534] the network side device configures the first signaling field;

[0535] the network side device indicates at least two first TCI states through DCI signaling;

[0536] at least one code point in TCI code points activated by a medium access control (MAC) control element (CE) corresponds to at least two TCI states.

[0537] Optionally, in a case where the target uplink channel has M TCI states, if the number of the first TCI states is at least M, the target TCI states are at least M first TCI states, and M is an integer greater than or equal to 2; or,

[0538] in a case where the target uplink channel has M TCI states, if N is less than M, the target TCI states are the original M TCI states of the target uplink channel, or the target TCI states are (M-N) original TCI states of the target uplink channel and the N first TCI states, or the target TCI states are the N first TCI states; or,

[0539] in a case where the target uplink channel has 1 TCI state, if the number of the first TCI states is at least 1, the target TCI states are at least 1 first TCI state.

[0540] Optionally, the uplink TCI state determination apparatus 400 further includes:

[0541] 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, wherein the transmission mode comprises a preset transmission mode, a repeated transmission mode, a multi-beam simultaneous transmission mode, or a transmission mode dynamically switching among the preset transmission mode, the repeated transmission mode, and the multi-beam simultaneous transmission mode, and the preset transmission mode is single-beam transmission without repetition.

[0542] Optionally, the second indication information is used to indicate the transmission mode, or the second indication information is used to indicate a quantity of the target TCI states.

[0543] Optionally, the type of the target uplink channel comprises at least one of the following: a physical uplink control channel (PUCCH), a physical uplink shared channel (PUSCH), and an UL reference signal (RS) resource.

[0544] Optionally, the PUCCH comprises at least one of the following:

[0545] an arbitrary PUCCH;

[0546] a PUCCH scheduled or associated with a preset physical downlink control channel (PDCCH);

[0547] a terminal-specific PUCCH;

[0548] and / or,

[0549] The PUSCH comprises at least one of the following:

[0550] an arbitrary PUSCH;

[0551] a PUSCH scheduled or associated with a preset PDCCH;

[0552] a dynamically scheduled PUSCH;

[0553] a terminal-specific PUSCH;

[0554] a configured grant PUSCH.

[0555] Optionally, the preset PDCCH comprises at least one of the following:

[0556] all PDCCHs, PDCCHs on a terminal-specific control resource set (CORESET), PDCCHs on a CORESET associated only with a terminal-specific search space (USS), PDCCHs on a CORESET associated with a USS and a common search space (CSS), PDCCHs on a CORESET associated only with a CSS, PDCCHs on a CORESET other than CORESET #0.

[0557] Optionally, in the case that the number of the first TCI states is greater than 1:

[0558] The target TCI state comprises at least one of:

[0559] All the first TCI states;

[0560] The network-side device indicates at least two first TCI states from the all the first TCI states for the target uplink channel in a repetition transmission mode or a multi-beam simultaneous transmission mode;

[0561] The network-side device indicates one first TCI state from the all the first TCI states;

[0562] The first TCI state same as the TCI state of the 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;

[0563] The first TCI state corresponding to the first identification information associated with the target uplink channel;

[0564] The first TCI state of each repetition transmission of the target uplink channel, wherein the first TCI state of each repetition transmission of the target uplink channel respectively corresponds to different first identification information;

[0565] At least two first TCI states corresponding to the at least two first identification information, wherein the target uplink channel is associated with at least two first identification information;

[0566] At least one first TCI state corresponding to the one first identification information, wherein the target uplink channel is associated with one first identification information;

[0567] At least two first TCI states determined according to a preset correspondence.

[0568] Optionally, the preset correspondence comprises:

[0569] The arrangement order or arrangement position of the first TCI state corresponds to the TCI state of each repetition transmission of the target uplink channel; or

[0570] The arrangement order or arrangement position of the first TCI state corresponds to each TCI state of the target uplink channel.

[0571] Optionally, in the case that 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 comprises a first preset TCI state, wherein the first preset TCI state comprises at least one of the following:

[0572] a first TCI state arranged in a preset position in all the first TCI states;

[0573] a first TCI state corresponding to the preset first identification information;

[0574] a first TCI state indicated by the network side device from all the first TCI states.

[0575] Optionally, in the case that the time domain behavior of the target uplink channel is a periodic uplink channel or the time domain behavior of the carried information is periodic information, the target TCI state comprises at least one of the following:

[0576] a TCI state other than the first TCI state in the TCI state pool or an original TCI state of the target uplink channel;

[0577] a first TCI state corresponding to the first identification information associated with the target uplink channel;

[0578] a first TCI state indicated by the third indication information from the network side device;

[0579] a second preset TCI state;

[0580] wherein the second preset TCI state comprises at least one of the following:

[0581] a first TCI state arranged in a preset position in all the first TCI states;

[0582] a first TCI state corresponding to the preset first identification information.

[0583] Optionally, the third indication information is located in the configuration information of the target uplink channel.

[0584] 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 or UL RS resource or UL RS resource set, the target TCI state comprises at least one of the following:

[0585] a first TCI state corresponding to a first code point or at least one of the first TCI states corresponding to the first code point, the first code point being a code point indicated by a TCI field in DCI indicating the first TCI state;

[0586] a first TCI state corresponding to the first identification information preset;

[0587] a first TCI state same as a TCI state of a PDCCH where DCI scheduling the target uplink channel is located;

[0588] a first TCI state corresponding to the first identification information associated with the PDCCH where DCI scheduling the target uplink channel is located;

[0589] a first TCI state corresponding to the first identification information associated with the target uplink channel.

[0590] Optionally, in a case where a transmission mode of the PDCCH where DCI indicating the first TCI state is located or the PDCCH scheduling the target uplink channel is a repetition transmission mode or a multi-beam simultaneous transmission mode, the target TCI state comprises:

[0591] at least one of a first TCI state same as a TCI state of the PDCCH in the repetition transmission or the multi-beam simultaneous transmission or a first TCI state used for the PDCCH repetition transmission or the multi-beam simultaneous transmission.

[0592] Optionally, in a case where a quantity of the first TCI states is greater than 1, if a type of the target uplink channel is a PUSCH of an uplink configured grant type 1, the target TCI state comprises at least one of:

[0593] a first TCI state corresponding to a preset CORESETPoolIndex, the preset CORESETPoolIndex comprising a CORESETPoolIndex corresponding to signaling of sending configuration information of the PUSCH or the preset CORESETPoolIndex being a preset value of the CORESETPoolIndex;

[0594] a first TCI state arranged in a preset position in all the first TCI states;

[0595] a first TCI state corresponding to a TCI state identification or a CORESETPoolIndex indicated by configuration information of the PUSCH of the uplink configured grant type 1;

[0596] a first TCI state of a preset SRS resource, the preset SRS resource being an SRS resource indicated by a sounding reference signal SRS resource indication SRI in the configuration information of the PUSCH of the uplink configured grant type 1;

[0597] at least one of the first TCI states determined according to a power control parameter in configuration information of the PUSCH of the uplink configured grant type 1.

[0598] Optionally, in a case where the number of the first TCI states is greater than 1, if the type of the target uplink channel is an UL RS resource or a resource set, the target TCI state includes:

[0599] a first TCI state with the same first identification information associated with the UL RS resource or the resource set;

[0600] a first TCI state same as a TCI state of a PDCCH triggering the UL RS resource or the resource set;

[0601] a first TCI state corresponding to the UL RS resource or the resource set, wherein each UL RS resource or resource set has a respective corresponding TCI state.

[0602] Optionally, in a case where the number of the first TCI states is equal to 1, if the transmission mode of the target uplink channel is a repetition 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:

[0603] determine that the configuration of the repetition transmission mode or the multi-beam simultaneous transmission mode of the target uplink channel is invalid;

[0604] determine that the target uplink channel is transmitted based on the first TCI state;

[0605] determine that the target TCI state includes at least two original TCI states of the target uplink channel;

[0606] determine to update a third preset TCI state in the at least two original TCI states of the target uplink channel to the first TCI state, wherein the third preset TCI state corresponds to the same first identification information as the first TCI state, or the preset TCI state is one at a preset position in the at least two original TCI states of the target uplink channel, or the third preset TCI state is associated with the first TCI state.

[0607] Optionally, in a case where 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:

[0608] in a case where the target uplink channel corresponds to the same first identification information as the first TCI state, determine that the target TCI state includes the first TCI state;

[0609] in a case where the first identification information corresponding to the first TCI state is different from the first identification information corresponding to the target uplink channel, determining the target TCI state comprises the original TCI state of the target uplink channel or determining the target uplink channel to stop transmission;

[0610] determining the target TCI state comprises the TCI state of the PDCCH scheduling or triggering the target uplink channel;

[0611] or,

[0612] 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 first determining module 402 is specifically configured to:

[0613] determining the target TCI state as the first TCI state; or,

[0614] determining the target TCI state to comprise the at least two original TCI states of the target uplink channel; or,

[0615] determining to update a fourth preset TCI state in the at least two original TCI states of the target uplink channel to the first TCI state; wherein 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 arranged in a preset position in the at least two original TCI states of the target uplink channel, or the fourth preset TCI state is associated with the first TCI state.

[0616] Optionally, in a case where the type of the target uplink channel is UL RS resource or resource set, the first determining module 402 is specifically configured to:

[0617] determining the target TCI state of all RS resources in the UL RS resource or resource set associated with the first TCI state to comprise the first TCI state; or

[0618] determining the target TCI state of all RS resources in the UL RS resource or resource set corresponding to the same first identification information as the first TCI state to comprise the first TCI state.

[0619] Optionally, in a case where the transmission mode of the target uplink channel is a repetition transmission mode, or the type of the target uplink channel is PUSCH or UL RS resource and the target DCI scheduling the target uplink channel simultaneously schedules at least two PUSCHs or at least two UL RS resources;

[0620] The uplink TCI state determination apparatus 400 further comprises:

[0621] a second sending module, configured to send first feedback information to the network side device at a first time, the first feedback information being used to indicate that the terminal has correctly received the common beam information;

[0622] a third determining module, configured to determine whether repeated transmission of the target uplink channel at a time slot after a second time or PUSCH or UL RS resource scheduled by the target DCI at the time slot after the second time uses the common beam information for transmission, wherein a time difference between the second time and the first time is a first preset time length, and the second time is later than the first time.

[0623] The uplink TCI state determination apparatus 400 in the embodiments of the present application can be an electronic device, for example, an electronic device with an operating system, or a component in an electronic device, for example, an integrated circuit or a chip. The electronic device can be a terminal or other devices other than a terminal. Illustratively, the terminal can include, but is not limited to, the types of the terminal 11 listed above, and the other devices can be a server, a network attached storage (NAS), etc., which are not limited in the embodiments of the present application.

[0624] The uplink TCI state determination apparatus 400 provided in the embodiments of the present application can perform the steps performed by the terminal in the method embodiments as shown in Figure 2 The terminal performs the steps, and the same beneficial effects can be achieved, which are not described herein again to avoid repetition.

[0625] In another implementation, if the uplink TCI state determination apparatus is applied to a network side device, the uplink TCI state determination apparatus 500 can include the following modules: Figure 5

[0626] an indicating module 501, configured to indicate common beam information to a terminal, the common beam information including N first transmission configuration indication (TCI) states, the first TCI states being joint TCI states or independent uplink (UL) TCI states, N being an integer greater than or equal to 1;

[0627] a second determining module 502, configured to determine a target TCI state of the target uplink channel according to target information, the target information including at least one of the following:

[0628] the number of the first TCI states;

[0629] the arrangement order or position of the first TCI states;

[0630] the correspondence between the first TCI states and first identification information;

[0631] ​a type of the target uplink channel;

[0632] a transmission mode of the target uplink channel;

[0633] a time domain behavior of the target uplink channel or a time domain behavior of information carried by the target uplink channel;

[0634] a number of the first identification information corresponding to the target uplink channel;

[0635] a value of the first identification information corresponding to the target uplink channel;

[0636] The first identification information includes at least one of the following:

[0637] control resource set CORESET identification information;

[0638] CORESET pool identification CORESETPoolIndex;

[0639] transmission and reception point TRP identification ID information;

[0640] channel group identification information;

[0641] CORESET group identification information;

[0642] physical uplink control channel PUCCH resource group identification information.

[0643] Optionally, in the case where the target information includes the number of the first TCI state, the second determination module 502 is specifically configured to:

[0644] In the case where the terminal adopts single-beam transmission, if the number of the first TCI state is one, it is determined that the transmission mode of the target uplink channel is single-beam transmission; or,

[0645] In the case where the terminal adopts single-beam transmission, if the number of the first TCI state is at least two, it is determined that the transmission mode of the target uplink channel is single-beam transmission or a repetition transmission mode or a multi-beam simultaneous transmission mode; or,

[0646] In the case where the terminal adopts a repetition transmission mode or a multi-beam simultaneous transmission mode, if the number of the first TCI state is one, it is determined that the transmission mode of the target uplink channel is single-beam transmission or the repetition transmission mode or the multi-beam simultaneous transmission mode; or,

[0647] In a case that the terminal adopts a repetition transmission mode or a multi-beam simultaneous transmission mode, if the number of the first TCI states is at least two, it is determined that the transmission mode of the target uplink channel is the repetition transmission mode or the multi-beam simultaneous transmission mode.

[0648] 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, the second determining module 502 comprises:

[0649] a first determining unit, configured to determine K first TCI states arranged in a preset position as target TCI states of a target uplink channel; or,

[0650] a second determining unit and a sending unit, the second determining unit is configured to determine K first TCI states from all first TCI states as the target TCI states, and send first indication information to the terminal, wherein the first indication information is used to indicate the K first TCI states.

[0651] Optionally, the first indication information is carried in a first signaling domain, and the first signaling domain is a signaling domain in a medium access control (MAC) control element (CE) signaling or a DCI signaling.

[0652] Optionally, 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 states are at least M first TCI states, and M is an integer greater than or equal to 2; or,

[0653] In a case that the target uplink channel has M TCI states, if N is less than M, the target TCI states are the original M TCI states of the target uplink channel, or the target TCI states are (M-N) original TCI states of the target uplink channel and the N first TCI states, or the target TCI states are the N first TCI states; or,

[0654] In a 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 states are at least 1 first TCI state.

[0655] Optionally, the target information further comprises a transmission mode of the target uplink channel, and the transmission mode comprises: a preset transmission mode, a repetition transmission mode, a multi-beam simultaneous transmission mode, or a transmission mode dynamically switched among the preset transmission mode, the repetition transmission mode, and the multi-beam simultaneous transmission mode, wherein the preset transmission mode is a single-beam transmission without repetition transmission.

[0656] The second determining module 502 is specifically configured to:

[0657] determine a target TCI state of the target uplink channel from the first TCI state according to a transmission mode of the target uplink channel;

[0658] The uplink TCI state determining apparatus 500 further includes:

[0659] A first sending module configured to send second indication information to the terminal, where the second indication information is used to indicate a transmission mode of the target uplink channel.

[0660] Optionally, the type of the target uplink channel includes at least one of the following: a physical uplink control channel (PUCCH) and a physical uplink shared channel (PUSCH), and an UL reference signal (RS) resource.

[0661] Optionally, the PUCCH includes at least one of the following:

[0662] an arbitrary PUCCH;

[0663] a PUCCH scheduled or associated with a preset physical downlink control channel (PDCCH);

[0664] a terminal-specific PUCCH;

[0665] and / or,

[0666] The PUSCH includes at least one of the following:

[0667] an arbitrary PUSCH;

[0668] a PUSCH scheduled or associated with a preset PDCCH;

[0669] a dynamically scheduled PUSCH;

[0670] a terminal-specific PUSCH;

[0671] a PUSCH configured with a grant.

[0672] Optionally, the preset PDCCH includes at least one of the following:

[0673] all PDCCHs, PDCCHs on a control resource set (CORESET) specific to the terminal, PDCCHs on a CORESET associated only with a terminal-specific search space (USS), PDCCHs on a CORESET associated with a USS and a common search space (CSS), PDCCHs on a CORESET associated only with a CSS, PDCCHs on a CORESET other than CORESET #0.

[0674] Optionally, in the case where the number of the first TCI states is greater than 1:

[0675] The target TCI state comprises at least one of:

[0676] All the first TCI states;

[0677] The network-side device indicates at least two first TCI states from the all first TCI states for the target uplink channel in a repetition transmission mode or a multi-beam simultaneous transmission mode;

[0678] The network-side device indicates one first TCI state from the all first TCI states;

[0679] A first TCI state same as 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;

[0680] The target TCI state comprises a first TCI state corresponding to the first identification information associated with the target uplink channel;

[0681] The target TCI state comprises a first TCI state of each repetition transmission of the target uplink channel, wherein the first TCI state of each repetition transmission of the target uplink channel respectively corresponds to different first identification information;

[0682] At least two first TCI states corresponding to the at least two first identification information, wherein the target uplink channel is associated with at least two first identification information;

[0683] At least one first TCI state corresponding to the one first identification information, wherein the target uplink channel is associated with one first identification information;

[0684] At least two first TCI states determined according to a preset correspondence.

[0685] Optionally, the preset correspondence comprises:

[0686] The arrangement order or arrangement position of the first TCI state corresponds to a TCI state of each repetition transmission of the target uplink channel; or,

[0687] The arrangement order or arrangement position of the first TCI state corresponds to each TCI state of the target uplink channel.

[0688] Optionally, in the case that 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 comprises a first preset TCI state, wherein the first preset TCI state comprises at least one of the following:

[0689] a first TCI state arranged in a preset position in all the first TCI states;

[0690] a first TCI state corresponding to the preset first identification information;

[0691] a first TCI state indicated by the network side device from all the first TCI states.

[0692] Optionally, in the case that the number of the first TCI states is greater than 1, if the time domain behavior of the target uplink channel is a periodic uplink channel or the time domain behavior of the information carried is periodic information, the target TCI state comprises at least one of the following:

[0693] a TCI state other than the first TCI state in the TCI state pool, or an original TCI state of the target uplink channel; or

[0694] a first TCI state corresponding to the first identification information associated with the target uplink channel; or

[0695] a preset first TCI state; or

[0696] a first TCI state indicated by the third indication information from the network side device; or

[0697] a second preset TCI state;

[0698] wherein the second preset TCI state comprises at least one of the following:

[0699] a first TCI state arranged in a preset position in all the first TCI states;

[0700] a first TCI state corresponding to the preset first identification information.

[0701] 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 or UL RS resource or UL RS resource set, the target TCI state comprises at least one of the following:

[0702] a first TCI state corresponding to the first code point or at least one of the first TCI states corresponding to the first code point, the first code point being a code point indicated by a TCI field in DCI indicating the first TCI state.

[0703] a first TCI state corresponding to the first identification information preset;

[0704] a first TCI state same as a TCI state of a PDCCH where DCI scheduling the target uplink channel is located;

[0705] a first TCI state corresponding to the first identification information associated with the PDCCH where DCI scheduling the target uplink channel is located;

[0706] a first TCI state corresponding to the first identification information associated with the target uplink channel.

[0707] Optionally, in the case that a transmission mode of the PDCCH where DCI indicating the first TCI state is located or the PDCCH scheduling the target uplink channel is a repetition transmission mode or a multi-beam simultaneous transmission mode, the target TCI state comprises:

[0708] at least one of a first TCI state same as a TCI state of the PDCCH in the repetition transmission or the multi-beam simultaneous transmission, or a first TCI state used for the PDCCH repetition transmission or the multi-beam simultaneous transmission.

[0709] Optionally, in the case that the number of the first TCI states is greater than 1, if a type of the target uplink channel is a PUSCH of an uplink configured grant type 1, the target TCI state comprises at least one of:

[0710] a first TCI state corresponding to a preset CORESETPoolIndex, the preset CORESETPoolIndex comprising a CORESETPoolIndex corresponding to signaling of sending PUSCH configuration information, or the preset CORESETPoolIndex being a preset value of CORESETPoolIndex;

[0711] a first TCI state arranged at a preset position among all the first TCI states;

[0712] a first TCI state corresponding to a TCI state identification or a CORESETPoolIndex indicated by configuration information of the PUSCH of the uplink configured grant type 1;

[0713] a first TCI state of a preset SRS resource, the preset SRS resource being a SRS resource indicated by a sounding reference signal SRS resource indication SRI in the configuration information of the PUSCH of the uplink configured grant type 1;

[0714] at least one of the first TCI states determined according to a power control parameter in configuration information of the PUSCH of the uplink configured grant type 1.

[0715] Optionally, in a case where the number of the first TCI states is greater than 1, if the type of the target uplink channel is an UL RS resource or a resource set, the target TCI state includes:

[0716] a first TCI state with the same first identification information as the UL RS resource or the resource set;

[0717] a first TCI state same as a TCI state of a PDCCH triggering the UL RS resource or the resource set;

[0718] a first TCI state corresponding to the UL RS resource or the resource set, wherein each UL RS resource or resource set has a respective corresponding TCI state.

[0719] Optionally, in a case where the number of the first TCI states is equal to 1, if the transmission mode of the target uplink channel is a repetition transmission mode or a multi-beam simultaneous transmission mode, the second determining module 502 is specifically configured to perform at least one of the following:

[0720] determine that the configuration of the repetition transmission mode or the multi-beam simultaneous transmission mode of the target uplink channel is invalid;

[0721] determine that the target uplink channel is transmitted based on the first TCI state;

[0722] determine that the target TCI state includes at least two original TCI states of the target uplink channel;

[0723] determine to update a third preset TCI state in the at least two original TCI states of the target uplink channel to the first TCI state, wherein 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 in a preset position in the at least two original TCI states of the target uplink channel, or the third preset TCI state is associated with the first TCI state.

[0724] Optionally, in a case where 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:

[0725] in a case where the target uplink channel corresponds to the same first identification information as the first TCI state, determine that the target TCI state includes the first TCI state;

[0726] in a case where the first identification information corresponding to the first TCI state is different from the first identification information corresponding to the target uplink channel, determining the target TCI state comprises determining the target TCI state as a TCI state of a PDCCH scheduling or triggering the target uplink channel;

[0727] in a case where the first identification information corresponding to the first TCI state is different from the first identification information corresponding to the target uplink channel, determining the target TCI state comprises determining the target TCI state as a TCI state of a PDCCH scheduling or triggering the target uplink channel;

[0728] or,

[0729] 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 second determining module 502 is specifically configured to:

[0730] determine the target TCI state as the first TCI state; or,

[0731] determine the target TCI state as the at least two TCI states originally having the target uplink channel; or,

[0732] determine to update a fourth preset TCI state in the at least two TCI states originally having the target uplink channel as the first TCI state, wherein 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 arranged in a preset position in the at least two TCI states originally having the target uplink channel, or the fourth preset TCI state is associated with the first TCI state.

[0733] Optionally, in a case where the type of the target uplink channel is UL RS resources or a resource set, the network-side device determines the target TCI state as the first TCI state, comprising:

[0734] the network-side device determines target TCI states of all RS resources in UL RS resources or a resource set associated with the first TCI state as the first TCI state; or

[0735] the network-side device determines target TCI states of all RS resources in UL RS resources or a resource set corresponding to the same first identification information as the first TCI state as the first TCI state.

[0736] Optionally, in a case where the transmission mode of the target uplink channel is a repetition transmission mode, or the type of the target uplink channel is PUSCH or UL RS resources and a target DCI scheduling the target uplink channel simultaneously schedules at least two PUSCHs or at least two UL RS resources;

[0737] The uplink TCI status determination device 500 also includes:

[0738] The second receiving module is used to receive first feedback information from the terminal at a second time, wherein the first feedback information is used to indicate that the terminal has correctly received the common beam information.

[0739] The configuration module is used to configure the public beam information to take effect based on the first feedback information;

[0740] The fourth determining module is used to determine whether the target uplink channel repeats transmission in a time slot after the second time or whether the target DCI schedules PUSCH or UL RS resources in a time slot after the second time use the common beam information for transmission, wherein the second time is the effective time of the common beam information.

[0741] The uplink TCI status determination device 500 in this embodiment can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or a chip. This electronic device can be a network-side device or other devices besides network-side devices. For example, network-side devices can include, but are not limited to, the types of network-side devices 12 listed above. Other devices can be servers, network-attached storage (NAS), etc., and this embodiment does not impose specific limitations.

[0742] The uplink TCI status determination device 500 provided in this application embodiment can perform the following: Figure 3 In the method embodiment shown, the terminal performs each step and achieves the same beneficial effect. To avoid repetition, these steps will not be described again here.

[0743] Optional, such as Figure 6 As shown, this application embodiment also provides a communication device 600, including a processor 601 and a memory 602. The memory 602 stores programs or instructions that can run on the processor 601. For example, when the communication device 600 is a terminal, the program or instructions executed by the processor 601 implement... Figure 2 or Figure 3 The various steps of the uplink TCI state determination method embodiment shown can achieve the same technical effect. When the communication device 600 is a terminal, the program or instruction executed by the processor 601 implements the following... Figure 2 The various steps of the method embodiment shown; when the communication device 600 is a network-side device, the program or instruction executed by the processor 601 implements as follows: Figure 3 The steps of the method embodiment shown are the same and can achieve the same technical effect. To avoid repetition, they will not be described again here.

[0744] The embodiment of the application further provides a terminal, comprising a processor and a communication interface, the communication interface is used to acquire public beam information indicated by a network side device, the public beam information comprises N first transmission configuration indication (TCI) states, the first TCI state is a joint TCI state or an independent uplink (UL) TCI state, N is an integer greater than or equal to 1; the processor is used to determine a target TCI state of a target uplink channel according to target information, the target information comprises at least one of the following:

[0745] The number of the first TCI states;

[0746] The arrangement order or position of the first TCI states;

[0747] The corresponding relationship between the first TCI states and first identification information;

[0748] The type of the target uplink channel;

[0749] The transmission mode of the target uplink channel;

[0750] The time domain behavior of the target uplink channel or the time domain behavior of information carried by the target uplink channel;

[0751] The number of the first identification information corresponding to the target uplink channel;

[0752] The value of the first identification information corresponding to the target uplink channel;

[0753] The first identification information comprises at least one of the following:

[0754] Control resource set (CORESET) identification information;

[0755] CORESET pool identification (CORESETPoolIndex);

[0756] Transmission and reception point (TRP) identification (ID) information;

[0757] Channel group identification information;

[0758] CORESET group identification information;

[0759] Physical uplink control channel (PUCCH) resource group identification information.

[0760] The terminal embodiment corresponds to the terminal side method embodiment described above, 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, Figure 7 A hardware structure diagram of a terminal for implementing the embodiment of the application.

[0761] The terminal 700 includes, but is not limited to, at least part of components such as a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, and a processor 710.

[0762] Those skilled in the art can understand that the terminal 700 can further include a power supply (such as a battery) for supplying power to each component, and the power supply can be logically connected to the processor 710 through a power management system, so as to realize functions such as management of charging, discharging, and power consumption management through the power management system. Figure 7 The terminal structure shown in the figure does not constitute a limitation on the terminal, and the terminal can include more or fewer components than the figure, or combine certain components, or different component arrangements, which are not described here.

[0763] It should be understood that in the embodiments of the present application, the input unit 704 can include a graphics processing unit (GPU) 7041 and a microphone 7042. The graphics processor 7041 processes image data of a still picture or a video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 706 can include a display panel 7061, which can be configured in the form of a liquid crystal display, an organic light-emitting diode, etc. 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 called a touch screen. The touch panel 7071 can include two parts of a touch detection device and a touch controller. The other input devices 7072 can include, but are not limited to, a physical keyboard, function keys (such as volume control keys, on-off keys, etc.), trackballs, mice, joysticks, etc., which are not described here.

[0764] In the embodiments of the present application, the radio frequency unit 701 can transmit the downlink data received from the network side device to the processor 710 for processing. In addition, the radio frequency unit 701 can send uplink data to the network side device. Generally, the radio frequency unit 701 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0765] The memory 709 can be used to store software programs or instructions and various data. The memory 709 can mainly include a first storage area storing programs or instructions and a second storage area storing data, wherein the first storage area can store an operating system, application programs or instructions required by at least one function (such as a sound playing function, an image playing function, etc.), and the like. In addition, the memory 709 can include a volatile memory or a non-volatile memory, or the memory 709 can include both volatile and non-volatile memories. The non-volatile memory can be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically EPROM (EEPROM), or a flash memory. The volatile memory can be a Random Access Memory (RAM), a Static RAM (SRAM), a Dynamic RAM (DRAM), a Synchronous DRAM (SDRAM), a Double Data Rate SDRAM (DDR SDRAM), an Enhanced SDRAM (ESDRAM), a Synch link DRAM (SLDRAM), and a Direct Rambus RAM (DRRAM). The memory 709 in the embodiments of the present application includes but is not limited to these and any other suitable types of memories.

[0766] The processor 710 can include one or more processing units; optionally, the processor 710 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and an application program, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It can be understood that the above-mentioned modem processor can also not be integrated into the processor 710.

[0767] The radio frequency unit 701 is configured to obtain public beam information indicated by a network side device, wherein the public beam information includes N first Transmission Configuration Indication (TCI) states, the first TCI state is a joint TCI state or an independent uplink (UL) TCI state, and N is an integer greater than or equal to 1.

[0768] The processor 710 is configured to determine a target TCI state of a target uplink channel according to target information, wherein the target information comprises at least one of the following:

[0769] The number of the first TCI states;

[0770] The arrangement order or position of the first TCI states;

[0771] The correspondence between the first TCI states and the first identification information;

[0772] The type of the target uplink channel;

[0773] The transmission mode of the target uplink channel;

[0774] The time domain behavior of the target uplink channel or the time domain behavior of information carried by the target uplink channel;

[0775] The number of the first identification information corresponding to the target uplink channel;

[0776] The value of the first identification information corresponding to the target uplink channel;

[0777] The first identification information comprises at least one of the following:

[0778] Control resource set (CORESET) identification information;

[0779] CORESET pool identification (CORESETPoolIndex);

[0780] Transmission and reception point (TRP) identification (ID) information;

[0781] Channel group identification information;

[0782] CORESET group identification information;

[0783] Physical uplink control channel (PUCCH) resource group identification information.

[0784] Optionally, when the target information comprises the number of the first TCI states, the processor 710 is configured to determine the target TCI state of the target uplink channel according to the target information by performing the following steps:

[0785] When the terminal adopts single-beam transmission, if the number of the first TCI states is one, it is determined that the transmission mode of the target uplink channel is single-beam transmission; or,

[0786] When the terminal adopts single-beam transmission, if the number of the first TCI states is at least two, it is determined that the transmission mode of the target uplink channel is single-beam transmission, repetition transmission mode or multi-beam simultaneous transmission mode; or,

[0787] In a case where the terminal adopts the repetition transmission mode or the multi-beam simultaneous transmission mode, if the number of the first TCI states is one, it is determined that the transmission mode of the target uplink channel is the single-beam transmission or the repetition transmission mode or the multi-beam simultaneous transmission mode; or,

[0788] In a case where the terminal adopts the repetition transmission mode or the multi-beam simultaneous transmission mode, if the number of the first TCI states is at least two, it is determined that the transmission mode of the target uplink channel is the repetition transmission mode or the multi-beam simultaneous transmission mode.

[0789] Optionally, 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, the processor 710 performs the determining of the target TCI state of the target uplink channel according to the target information, comprising:

[0790] determining K first TCI states arranged in a preset position as the target TCI state of the target uplink channel; or,

[0791] determining the target TCI state of the target uplink channel according to an indication from first indication information of the network side device, wherein the first indication information is used to indicate K first TCI states.

[0792] Optionally, the first indication information is carried in a first signaling field, and the first signaling field is a signaling field in a medium access control (MAC) control element (CE) signaling or a DCI signaling.

[0793] Optionally, the first signaling field is valid or exists when a preset condition is met, and the preset condition comprises at least one of the following:

[0794] the network side device configures the first signaling field;

[0795] the network side device indicates at least two first TCI states through a DCI signaling;

[0796] at least one code point in a TCI code point activated by a medium access control (MAC) control element (CE) corresponds to at least two TCI states.

[0797] Optionally, in a case where 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,

[0798] In a case where the target uplink channel has M TCI states, if N is less than M, the target TCI state is the original M TCI states of the target uplink channel, or the target TCI state is the original (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

[0799] In a case where 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.

[0800] Optionally, before the processor 710 performs the determining the target TCI state of the target uplink channel according to the target information, the processor 710 is further configured to perform the following operations:

[0801] The radio frequency unit 701 is further configured to receive second indication information from a network side device.

[0802] The processor 710 is further configured to determine a transmission mode of the target uplink channel according to the second indication information, the transmission mode including: a preset transmission mode, a repeated transmission mode, a multi-beam simultaneous transmission mode, or a transmission mode dynamically switching between the preset transmission mode, the repeated transmission mode, and the multi-beam simultaneous transmission mode, wherein the preset transmission mode is a single-beam transmission without repetition.

[0803] 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.

[0804] Optionally, the type of the target uplink channel includes at least one of the following: a physical uplink control channel (PUCCH), a physical uplink shared channel (PUSCH), and an UL reference signal (RS) resource.

[0805] Optionally, the PUCCH includes at least one of the following:

[0806] Any PUCCH;

[0807] A PUCCH scheduled or associated with a preset physical downlink control channel (PDCCH);

[0808] A terminal-specific PUCCH;

[0809] and / or,

[0810] The PUSCH includes at least one of the following:

[0811] Any PUSCH;

[0812] A PUSCH scheduled or associated with a preset PDCCH;

[0813] PUSCH scheduled dynamically;

[0814] PUSCH dedicated to the terminal;

[0815] PUSCH configured with a grant.

[0816] Optionally, the preset PDCCH comprises at least one of:

[0817] all PDCCHs, PDCCHs on control resource sets (CORESETs) dedicated to the terminal, PDCCHs on CORESETs associated only with terminal-dedicated search spaces (USSs), PDCCHs on CORESETs associated with USSs and common search spaces (CSSs), PDCCHs on CORESETs associated only with CSSs, PDCCHs on CORESETs other than CORESET#0.

[0818] Optionally, in the case where the number of the first TCI states is greater than 1:

[0819] The target TCI state comprises at least one of:

[0820] all the first TCI states;

[0821] at least two first TCI states indicated by the network-side device from all the first TCI states, for a target uplink channel in a repetition transmission mode or a multi-beam simultaneous transmission mode;

[0822] one first TCI state indicated by the network-side device from all the first TCI states;

[0823] a first TCI state same as 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;

[0824] a first TCI state corresponding to the first identification information associated with the target uplink channel;

[0825] a first TCI state of each repetition transmission of the target uplink channel, wherein the first TCI state of each repetition transmission of the target uplink channel respectively corresponds to different first identification information;

[0826] 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;

[0827] at least one first TCI state corresponding to the one first identification information, wherein the target uplink channel is associated with one first identification information;

[0828] at least two first TCI states determined according to a preset correspondence.

[0829] Optionally, the preset correspondence comprises:

[0830] the arrangement order or arrangement position of the first TCI state corresponds to the TCI state of each repetition transmission of the target uplink channel; or

[0831] the arrangement order or arrangement position of the first TCI state corresponds to each TCI state of the target uplink channel.

[0832] Optionally, in the case that 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 comprises a first preset TCI state, wherein the first preset TCI state comprises at least one of:

[0833] the first TCI state arranged in a preset position in all the first TCI states;

[0834] the first TCI state corresponding to the preset first identification information;

[0835] the first TCI state indicated by the network side device from all the first TCI states.

[0836] Optionally, in the case that the time domain behavior of the target uplink channel is a periodic uplink channel or the time domain behavior of the information carried is a periodic information, the target TCI state comprises at least one of:

[0837] the TCI state other than the first TCI state in the TCI state pool, or the original TCI state of the target uplink channel;

[0838] the first TCI state corresponding to the first identification information associated with the target uplink channel;

[0839] the first TCI state indicated by the third indication information from the network side device;

[0840] a second preset TCI state;

[0841] wherein the second preset TCI state comprises at least one of:

[0842] the first TCI state arranged in a preset position in all the first TCI states;

[0843] a first TCI state corresponding to the first identification information.

[0844] Optionally, the third indication information is located in configuration information of the target uplink channel.

[0845] Optionally, in a case where 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 or UL RS resource set, the target TCI state comprises at least one of the following:

[0846] at least one of a first TCI state corresponding to a first codepoint or a first TCI state corresponding to the first codepoint, the first codepoint being a codepoint indicated by a TCI field in DCI indicating the first TCI state;

[0847] a first TCI state corresponding to the first identification information;

[0848] a first TCI state same as a TCI state of a PDCCH in which DCI scheduling the target uplink channel is located;

[0849] a first TCI state corresponding to the first identification information associated with the PDCCH in which DCI scheduling the target uplink channel is located;

[0850] a first TCI state corresponding to the first identification information associated with the target uplink channel.

[0851] Optionally, in a case where a transmission mode of the PDCCH in which DCI indicating the first TCI state is located or the PDCCH scheduling the target uplink channel is a repetition transmission mode or a multi-beam simultaneous transmission mode, the target TCI state comprises:

[0852] at least one of a first TCI state same as a TCI state of the PDCCH in the repetition transmission or the multi-beam simultaneous transmission or a first TCI state used for the PDCCH repetition transmission or the multi-beam simultaneous transmission.

[0853] Optionally, in a case where the number of the first TCI states is greater than 1, if the type of the target uplink channel is PUSCH configured with uplink configured grant type 1, the target TCI state comprises at least one of the following:

[0854] a first TCI state corresponding to a preset CORESETPoolIndex, the preset CORESETPoolIndex including a CORESETPoolIndex corresponding to signaling of the PUSCH configuration information, or the preset CORESETPoolIndex being a preset value of the CORESETPoolIndex;

[0855] a first TCI state arranged at a preset position among all the first TCI states;

[0856] a first TCI state corresponding to a TCI state identity indicated by the configuration information of the PUSCH of the uplink configured grant type 1 or a CORESETPoolIndex indicated by the configuration information of the PUSCH of the uplink configured grant type 1;

[0857] a first TCI state of a preset SRS resource, the preset SRS resource being an SRS resource indicated by a sounding reference signal SRS resource indication SRI in the configuration information of the PUSCH of the uplink configured grant type 1;

[0858] at least one first TCI state determined according to a power control parameter in the configuration information of the PUSCH of the uplink configured grant type 1.

[0859] 2Optionally, in a case where the number of the first TCI states is greater than 1, if the type of the target uplink channel is an UL RS resource or a resource set, the target TCI state includes:

[0860] a first TCI state having the same first identification information associated with the UL RS resource or the resource set;

[0861] a first TCI state same as a TCI state of a PDCCH triggering the UL RS resource or the resource set;

[0862] a first TCI state corresponding to the UL RS resource or the resource set, wherein each UL RS resource or resource set has a respective corresponding TCI state.

[0863] Optionally, in a case where the number of the first TCI states is equal to 1, if a transmission mode of the target uplink channel is a repetition transmission mode or a multi-beam simultaneous transmission mode, the processor 710 performs the determining of the target TCI state of the target uplink channel according to the target information, including at least one of:

[0864] determining that a configuration of the repetition transmission mode or the multi-beam simultaneous transmission mode of the target uplink channel is invalid;

[0865] determining that the target uplink channel is transmitted based on the first TCI state.

[0866] The target TCI state comprises at least two original TCI states of the target uplink channel.

[0867] The third preset TCI state in the at least two original TCI states of the target uplink channel is updated to the first TCI state, wherein the third preset TCI state corresponds to the same first identification information as the first TCI state, or the preset TCI state is one located at a preset position in the at least two original TCI states of the target uplink channel, or the third preset TCI state is associated with the first TCI state.

[0868] Optionally, in the case where the number of the first TCI states is equal to 1, the processor 710 performs the determining of the target TCI state of the target uplink channel according to the target information, comprising at least one of the following:

[0869] In the case where the target uplink channel corresponds to the same first identification information as the first TCI state, the target TCI state comprises the first TCI state.

[0870] In the case where the target uplink channel corresponds to different first identification information from the first TCI state, the target TCI state comprises an original TCI state of the target uplink channel or the target uplink channel is determined to stop transmission.

[0871] The target TCI state comprises a TCI state of a PDCCH scheduling or triggering the target uplink channel.

[0872] Or,

[0873] 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 processor 710 performs the determining of the target TCI state of the target uplink channel according to the target information, comprising:

[0874] The target TCI state is determined to be the first TCI state; or,

[0875] The target TCI state comprises at least two original TCI states of the target uplink channel; or,

[0876] determining that a fourth preset TCI state of the original at least two TCI states of the target uplink channel is updated to the first TCI state; wherein 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 arranged in a preset position among the original at least two TCI states of the target uplink channel, or the fourth preset TCI state is associated with the first TCI state.

[0877] Optionally, in the case where the type of the target uplink channel is UL RS resource or resource set, the processor 710 performs the determination that the target TCI state is the first TCI state, including:

[0878] determining that the target TCI state of all RS resources in the UL RS resource or resource set associated with the first TCI state includes the first TCI state; or

[0879] determining that the target TCI state of all RS resources in the UL RS resource or resource set corresponding to the same first identification information as the first TCI state includes the first TCI state.

[0880] Optionally, in the case where the transmission mode of the target uplink channel is a repetition transmission mode, or the type of the target uplink channel is PUSCH or UL RS resource and the target DCI scheduling the target uplink channel simultaneously schedules at least two PUSCHs or at least two UL RS resources;

[0881] The radio frequency unit 701 is further configured to, after performing the obtaining of the common beam information indicated by the network side device, send first feedback information to the network side device at a first time, the first feedback information being used to indicate that the terminal has correctly received the common beam information.

[0882] The processor 710 is further configured to determine that the repetition transmission of the target uplink channel at a time slot after a second time or the PUSCH or UL RS resource scheduled by the target DCI at the time slot after the second time uses the common beam information for transmission, wherein the time difference between the second time and the first time is a first preset time length, and the second time is later than the first time.

[0883] The terminal 700 provided by the embodiments of the present application can implement each process performed by the uplink TCI state determination apparatus 400 as shown in Figure 4 The same beneficial effects can be achieved, and to avoid repetition, details are not repeated here.

[0884] The embodiment of the application further provides a network side device, comprising a processor and a communication interface, the processor is configured to indicate common beam information to a terminal, the common beam information comprises N first transmission configuration indication (TCI) states, the first TCI state is a joint TCI state or an independent uplink (UL) TCI state, 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, the target information comprises at least one of the following:

[0885] The number of the first TCI states;

[0886] The arrangement order or position of the first TCI states;

[0887] The correspondence between the first TCI states and first identification information;

[0888] The type of the target uplink channel;

[0889] The transmission mode of the target uplink channel;

[0890] The time domain behavior of the target uplink channel or the time domain behavior of information carried by the target uplink channel;

[0891] The number of the first identification information corresponding to the target uplink channel;

[0892] The value of the first identification information corresponding to the target uplink channel;

[0893] The first identification information comprises at least one of the following:

[0894] Control resource set (CORESET) identification information;

[0895] CORESET pool identification (CORESETPoolIndex);

[0896] Transmission and reception point (TRP) identification (ID) information;

[0897] Channel group identification information;

[0898] CORESET group identification information;

[0899] Physical uplink control channel (PUCCH) resource group identification information.

[0900] The network side device embodiment corresponds to the network side device method embodiment described above, 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.

[0901] Specifically, the embodiment of the application further provides a network side device. As shown in Figure 8As shown, 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 with the radio frequency device 802. In the uplink direction, the radio frequency device 802 receives information through the antenna 801, and sends the received information to the baseband device 803 for processing. In the downlink direction, the baseband device 803 processes the information to be sent, and sends the processed information to the radio frequency device 802, and the radio frequency device 802 processes the received information and sends the processed information out through the antenna 801.

[0902] The method performed by the network side device in the above embodiment can be implemented in the baseband device 803, which includes a baseband processor.

[0903] The baseband device 803 may, for example, include at least one baseband board on which a plurality of chips are arranged, such as Figure 8 As shown, one of the chips is, for example, a baseband processor, which is connected with the memory 805 through a bus interface to call programs in the memory 805 and perform the operations of the network device shown in the above method embodiments.

[0904] The network side device can further include a network interface 806, which is, for example, a common public radio interface (CPRI).

[0905] 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, and the processor 804 calls the instructions or programs in the memory 805 to perform the methods of the modules shown in the above embodiments and achieve the same technical effects. To avoid repetition, details are not described here. Figure 5

[0906] The embodiment of the present application further provides a readable storage medium, and the readable storage medium stores programs or instructions, which are executed by a processor to implement the above uplink TCI state determination method embodiments and achieve the same technical effects. To avoid repetition, details are not described here. Figure 2 Figure 3

[0907] The processor is the processor in the terminal in the above embodiments. The readable storage medium includes a computer readable storage medium, such as a computer readable only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc.

[0908] The embodiment of the present application further provides a chip, which includes a processor and a communication interface, the communication interface is coupled with the processor, and the processor is used to run programs or instructions to implement the above uplink TCI state determination method embodiments and achieve the same technical effects. Figure 2 or​​​Figure 3 The various processes of the uplink TCI state determination method embodiment are described above, and the same technical effects can be achieved, so as to avoid repetition, which will not be described here.

[0909] It should be understood that the chip mentioned in the embodiments of the present application can also be referred to as a system chip, a system chip, a chip system or a system on chip, etc.

[0910] The embodiments of the present application further provide a computer program / program product, which is stored in a storage medium, and is executed by at least one processor to implement the above-mentioned uplink TCI state determination method. Figure 2 Or Figure 3 The various processes of the uplink TCI state determination method embodiment are described above, and the same technical effects can be achieved, so as to avoid repetition, which will not be described here.

[0911] The embodiments of the present application further provide a wireless communication system, comprising: a terminal and a network side device, the terminal can be used to execute the above-mentioned uplink TCI state determination method. Figure 2 The steps of the uplink TCI state determination method are described above, and the same technical effects can be achieved, so as to avoid repetition, which will not be described here. Figure 3 Figure 2 Figure 3 The steps of the uplink TCI state determination method are described above, and the same technical effects can be achieved, so as to avoid repetition, which will not be described here.

[0912] It should be noted that in this paper, the term "include", "contain" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the method and device in the embodiments of the present application is not limited to the order of functions shown or discussed, but can also include functions performed in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method can be performed in an order different from that described, and various steps can also be added, omitted or combined. In addition, the features described with reference to certain examples can be combined in other examples.

[0913] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned example methods can be realized by means of software and a necessary general hardware platform, and of course, can also be realized by hardware, but in many cases, the former is a better embodiment. Based on such understanding, the technical solutions of the present application can be embodied in the form of a computer software product in essence or in the form of a part that contributes to the prior art, which is stored in a storage medium (such as a ROM / RAM, a magnetic disc, an optical disc), and includes a plurality of instructions for causing a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in various embodiments of the present application.

[0914] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the above-mentioned specific embodiments, and the above-mentioned specific embodiments are only illustrative and not restrictive. Those skilled in the art can make many forms under the inspiration of the present application without departing from the scope of the present application and the scope protected by the claims.

Claims

1. A method for determining the uplink TCI state, characterized in that, include: The terminal obtains common beam information indicated by the network-side device. The common beam information includes N first transmission configuration indication (TCI) states, where the first TCI state is either a joint TCI state or an independent uplink UL TCI state, and N is an integer greater than or equal to 1. The terminal determines the target TCI state of the target uplink channel based on the target information, wherein the target information includes at least one of the following: The number of the first TCI states; The order or position of the first TCI states; The correspondence between the first TCI state and the first identification information; The type of the target uplink channel; The 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 identifier information corresponding to the target uplink channel; The first identification information includes at least one of the following: Control resource set CORESET identification information; CORESET pool identification CORESETPoolIndex; Send the TRP identifier ID information of the receiving point; Channel group identification information; CORESET group identification information; Physical Uplink Control Channel (PUCCH) resource group identification information; The method further includes at least one of the following: Wherein, when the number N of the first TCI states is greater than K, K is the number of TCI states required by the target uplink channel, K is greater than or equal to 1, and the type of the target uplink channel is Physical Uplink Shared Channel (PUSCH), Physical Uplink Control Channel (PUCCH), or UL Reference Signal (RS) resource, the terminal determines the target TCI state of the target uplink channel based on the target information, including: The terminal determines that K first TCI states arranged in a preset position are the target TCI states of the target uplink channel; or, the terminal determines the target TCI states of the target uplink channel according to the indication of first indication information from the network-side device, wherein the first indication information is used to indicate TCI states, and the TCI states indicated by the first indication information include K first TCI states out of the N first TCI states. Wherein, the type of the target uplink channel is PUSCH or PUCCH, and when 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, then the terminal determines the target TCI state of the target uplink channel according to the target information, including: The terminal determines to update the third preset TCI state in the original at least two TCI states of the target uplink channel to the first TCI state; wherein, the third preset TCI state is a TCI state that corresponds to one of the first TCI states in the original at least two TCI states. Wherein, if the number N of the first TCI states is greater than 1, and the type of the target uplink channel is PUSCH, UL RS resource, or UL RS resource set, then the target TCI states include: The first TCI state corresponding to the first identification information associated with the PDCCH where the DCI of the target uplink channel is located; Where the number N of the first TCI states is greater than 1, if the target uplink channel type is a PUSCH configured with uplink configuration grant type 1, then the target TCI state includes at least one of the following: The configuration information of the PUSCH of the uplink configuration authorization type 1 indicates the TCI status identifier or the first TCI status corresponding to the indicated CORESETPoolIndex. The network-side device indicates one or two of the first TCI states configured to the terminal via the first signaling. Wherein, when the number of the first TCI states is equal to 1, the terminal determines the target TCI state of the target uplink channel based on the target information, including at least one of the following: When the target uplink channel corresponds to the same first identification information as the first TCI state, the terminal determines that the target TCI state includes the first TCI state; When the first identification information corresponding to the target uplink channel is different from the first TCI state, the terminal determines that the target TCI state includes the original TCI state of the target uplink channel.

2. The method according to claim 1, characterized in that, The number N of the first TCI states is 2, and the target uplink channel adopts a repetitive transmission mode: If the first indication information is 00, then the first of the two first TCI states can be selected for repeated transmission of the target uplink channel; If the first indication information is 01, then the second of the two first TCI states can be selected for repeated transmission of the target uplink channel; If the first indication information is 10, then the first of the two first TCI states is selected as the first TCI state used for repeated transmission of the target uplink channel, and the second of the two first TCI states is selected as the second TCI state used for repeated transmission of the target uplink channel. If the first indication information is 11, then the second of the two first TCI states is selected as the first TCI state used for repeated transmission of the target uplink channel, and the first of the two first TCI states is selected as the second TCI state used for repeated transmission of the target uplink channel.

3. The method according to claim 1, characterized in that, When the target information includes the number of the first TCI states, the terminal determines the target TCI state of the target uplink channel based on the target information, including: When the terminal uses single-beam transmission, if the number of the first TCI states is one, then the terminal determines that the transmission mode of the target uplink channel is single-beam transmission; or, When the terminal uses single-beam transmission, if the number of the first TCI states is at least two, then the terminal determines the transmission mode of the target uplink channel as single-beam transmission, repeated transmission mode, or multi-beam simultaneous transmission mode; or, When the terminal uses a repetitive transmission mode or a multi-beam simultaneous transmission mode, if the number of the first TCI states is one, then the terminal determines that the transmission mode of the target uplink channel is single-beam transmission, the repetitive transmission mode, or the multi-beam simultaneous transmission mode; or, When the terminal adopts a repetitive 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 repetitive transmission mode or the multi-beam simultaneous transmission mode.

4. The method according to claim 3, characterized in that, The first indication information is carried in the first signaling field, which is the signaling field in the Media Access Control (MAC) Control Unit (CE) signaling or DCI signaling.

5. The method according to claim 4, characterized in that, The first signaling domain becomes active or exists when preset conditions are met, and the preset conditions include at least one of the following: The network-side device is configured with the first signaling domain; The network-side device indicates at least two first TCI states via DCI signaling; Among the TCI code points activated by the network-side device through the Media Access Control (MAC) control unit (CE), at least one code point corresponds to at least two TCI states.

6. The method according to any one of claims 1 to 5, characterized in that: If the target uplink channel has M TCI states, and the number of the first TCI states is at least M, then the target TCI states are at least M of the first TCI states, where M is an integer greater than or equal to 2; or, If the target uplink channel has M TCI states, and N is less than M, then the target TCI state is the original M TCI states of the target uplink channel; or, the target TCI state is the original (MN) 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... If the target uplink channel has one TCI state, and the number of the first TCI states is at least one, then the target TCI state is at least one first TCI state.

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 based on the target information, the method further includes: The terminal receives second indication information from the network-side device and determines the transmission mode of the target uplink channel based on the second indication information. The transmission mode includes: a preset transmission mode, a repeated transmission mode, a multi-beam simultaneous transmission mode, or a transmission mode that dynamically switches between the preset transmission mode, the repeated transmission mode, and the multi-beam simultaneous transmission mode. The preset transmission mode is a single-beam transmission without repeated transmission.

8. The method according to claim 7, characterized in that, 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, characterized in that, The target uplink channel type includes at least one of the following: Physical Uplink Control Channel (PUCCH), Physical Uplink Shared Channel (PUSCH), and UL Reference Signal (RS) resource.

10. The method according to claim 9, characterized in that: The PUCCH includes at least one of the following: Any PUCCH; Preset physical downlink control channel (PDCCH) scheduling or associated PUCCH; A terminal-specific PUCCH; And / or, The PUSCH includes at least one of the following: Arbitrary PUSCH; Preset PDCCH scheduling or associated PUSCH; Dynamically scheduled PUSCH; A terminal-specific PUSCH; Configure the authorized PUSCH.

11. The method according to claim 10, characterized in that, The preset PDCCH includes at least one of the following: All PDCCHs, PDCCHs on the terminal-specific control resource set CORESET, PDCCHs on the CORESET associated only with the terminal-specific search space USS, PDCCHs on the CORESET associated with both the USS and the public search space CSS, PDCCHs on the CORESET associated only with CSS, and PDCCHs on the CORESET except CORESET#0.

12. The method according to claim 1, characterized in that, When the number of the first TCI states is greater than 1: The target TCI state includes at least one of the following: All first TCI states; The network-side device indicates at least two first TCI states from all the first TCI states for the target uplink channel in either the repetitive transmission mode or the multi-beam simultaneous transmission mode. The network-side device indicates a first TCI state from all the first TCI states; The first TCI state is the same as the TCI state of the first PDCCH, wherein the first PDCCH is used to schedule or trigger the target uplink channel; or the first PDCCH is used to schedule the target PDSCH, and the 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 first TCI state corresponding to the first identifier information associated with the target uplink channel; The 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; At least two first TCI states corresponding to the at least two first identification information, wherein the target uplink channel is associated with at least two first identification information; At least one first TCI state corresponding to the first identification information, wherein the target uplink channel is associated with a first identification information; At least two first TCI states are determined based on a preset correspondence.

13. The method according to claim 12, characterized in that, The preset correspondence includes: The order or position of the first TCI states corresponds to the TCI states of each repeated transmission of the target uplink channel; or, The order or position of the first TCI states corresponds to each TCI state of the target uplink channel.

14. The method according to claim 1, characterized in that, 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, then the target TCI states include the first preset TCI states, wherein the first preset TCI states include at least one of the following: The first TCI states arranged in preset positions among all the first TCI states; The first TCI state corresponding to the preset first identifier information; The network-side device indicates the first TCI state from all the first TCI states.

15. The method according to claim 1, characterized in that, When the target uplink channel's time-domain behavior is a periodic uplink channel or the carried information's time-domain behavior is periodic information, the target TCI state includes at least one of the following: Other TCI states in the TCI state pool besides the first TCI state, or the original TCI state of the target uplink channel; The first TCI state corresponding to the first identifier information associated with the target uplink channel; The first TCI state indicated by the third indication information from the network-side device; Second preset TCI state; The second preset TCI state includes at least one of the following: The first TCI states arranged in preset positions among all the first TCI states; The first TCI state corresponding to the preset first identifier information.

16. The method according to claim 15, characterized in that, The third indication information is located in the configuration information of the target uplink channel.

17. The method according to claim 1, characterized in that, If the number of the first TCI states is greater than 1, and the type of the target uplink channel is PUSCH, UL RS resource, or UL RS resource set, then the target TCI state includes at least one of the following: At least one of the first TCI state corresponding to the first code point or the first TCI state corresponding to the first code point, wherein the first code point is the code point indicated by the TCI field in the DCI indicating the first TCI state. The first TCI state corresponding to the preset first identifier information; The first TCI state is the same as the TCI state of the PDCCH where the DCI of the target uplink channel is located; The first TCI state corresponding to the first identifier information associated with the target uplink channel.

18. The method according to claim 17, characterized in that, When the transmission mode of the PDCCH indicating the DCI state of the first TCI state is a repetitive transmission mode or a multi-beam simultaneous transmission mode, the target TCI state includes: The first TCI state that is the same as the TCI state of the PDCCH that is transmitted repeatedly or simultaneously with multiple beams, or at least one of the first TCI states used in the PDCCH transmission that is transmitted repeatedly or simultaneously with multiple beams.

19. The method according to claim 1, characterized in that, If the number of the first TCI states is greater than 1, and the target uplink channel type is a PUSCH configured with uplink configuration grant type 1, then the target TCI state includes at least one of the following: The first TCI state corresponding to the preset CORESETPoolIndex, wherein the preset CORESETPoolIndex includes the CORESETPoolIndex corresponding to the signaling that sends PUSCH configuration information, or the preset CORESETPoolIndex is a preset value of CORESETPoolIndex; The first TCI states arranged in a preset position among all the first TCI states; The first TCI state of the preset SRS resource, wherein the preset SRS resource is the SRS resource indicated by the Probe Reference Signal SRS Resource Indicator (SRI) in the configuration information of the PUSCH of the uplink configuration grant type 1. At least one of the first TCI states is determined based on the power control parameters in the PUSCH configuration information of the uplink configuration authorization type 1.

20. The method according to claim 1, characterized in that, If the number of the first TCI states is greater than 1, and the type of the target uplink channel is a UL RS resource or resource set, then the target TCI states include: The first TCI state of the first identification information that is associated with the same UL RS resource or resource set; The first TCI state is the same as the TCI state that triggers the PDCCH of the UL RS resource or resource set; The first TCI state corresponding to the UL RS resource or resource set, wherein each UL RS resource or resource set has its own corresponding TCI state.

21. The method according to claim 1, characterized in that, When the number of the first TCI states is equal to 1, if the transmission mode of the target uplink channel is a repetitive transmission mode or a multi-beam simultaneous transmission mode, then the terminal determines the target TCI state of the target uplink channel based on the target information, including at least one of the following: The terminal determines that the configuration of the repeated transmission mode or the multi-beam simultaneous transmission mode of the target uplink channel has failed. The terminal determines that the target uplink channel is transmitted based on the first TCI state; The terminal determines that the target TCI state includes at least two existing TCI states of the target uplink channel; The terminal determines to update the third preset TCI state among the original at least two TCI states of the target uplink channel to the first TCI state; wherein 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 the original at least two TCI states of the target uplink channel located at a preset position; or the third preset TCI state is associated with the first TCI state.

22. The method according to claim 1, characterized in that, When the number of the first TCI states is equal to 1, the terminal determines the target TCI state of the target uplink channel based on the target information, including at least one of the following: If the first identification information corresponds to a different target uplink channel than the first TCI state, the terminal determines that the target uplink channel should stop transmitting. The terminal determines the target TCI state, including the TCI state of the PDCCH that schedules or triggers the target uplink channel; or, If the number of the first TCI states is equal to 1, and the target uplink channel originally had at least two TCI states, then the terminal determines the target TCI state of the target uplink channel based on the target information, including: The terminal determines the target TCI state as the first TCI state; or... The terminal determines that the target TCI state includes at least two existing TCI states of the target uplink channel; or... The terminal determines to update the fourth preset TCI state of the original at least two TCI states of the target uplink channel to the first TCI state; wherein 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 the original at least two TCI states of the target uplink channel arranged in a preset position, or the fourth preset TCI state is associated with the first TCI state.

23. The method according to claim 22, characterized in that, When the type of the target uplink channel is a UL RS resource or resource set, the terminal determines the target TCI state as the first TCI state, including: The terminal determines that the target TCI state of the UL RS resource or all RS resources in the resource set associated with the first TCI state includes the first TCI state; or The terminal determines the target TCI state of the UL RS resource or all RS resources in the resource set that have the same first identification information as the first TCI state, including the first TCI state.

24. The method according to claim 1, characterized in that, The transmission mode of the target uplink channel is a repetitive transmission mode, or the type of the target uplink channel is a PUSCH or UL RS resource, and the target DCI scheduling the target uplink channel simultaneously schedules at least two PUSCH or at least two UL RS resources. After the terminal obtains the common beam information indicated by the network-side device, the method further includes: The terminal sends a first feedback message to the network-side device at a first moment, the first feedback message being used to indicate that the terminal has correctly received the common beam information; The terminal determines whether the target uplink channel is repeatedly transmitted in a time slot after the second time or whether the PUSCH or UL RS resources scheduled by the target DCI in a time slot after the second time are transmitted using the common 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.

25. An uplink TCI status determination device, characterized in that, Applied to a terminal, the device includes: The acquisition module is used to acquire common beam information indicated by the network-side device. The common beam information includes N first transmission configuration indication (TCI) states, where the first TCI state is either a joint TCI state or an independent uplink UL TCI state, and N is an integer greater than or equal to 1. The first determining module is used to determine the target TCI state of the target uplink channel based on target information, wherein the target information includes at least one of the following: The number of the first TCI states; The order or position of the first TCI states; The correspondence between the first TCI state and the first identification information; The type of the target uplink channel; The 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 identifier information corresponding to the target uplink channel; The first identification information includes at least one of the following: Control resource set CORESET identification information; CORESET pool identification CORESETPoolIndex; Send the TRP identifier ID information of the receiving point; Channel group identification information; CORESET group identification information; Physical Uplink Control Channel (PUCCH) resource group identification information; The first determining module is specifically used for at least one of the following: Wherein, when the number N of the first TCI states is greater than K, K is the number of TCI states required by the target uplink channel, K is greater than or equal to 1, the type of the target uplink channel is Physical Uplink Shared Channel (PUSCH), Physical Uplink Control Channel (PUCCH), or UL Reference Signal (RS) resource, and K of the first TCI states arranged in a preset position are determined as the target TCI states of the target uplink channel; or, the target TCI states of the target uplink channel are determined according to the indication of the first indication information from the network-side device, wherein the first indication information is used to indicate the TCI states, and the TCI states indicated by the first indication information include K of the N first TCI states; Wherein, the type of the target uplink channel is PUSCH or PUCCH, and when 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, then it is determined that the third preset TCI state among the original at least two TCI states of the target uplink channel will be updated to the first TCI state; wherein, the third preset TCI state is a TCI state that has a corresponding relationship with one of the first TCI states among the original at least two TCI states. Wherein, if the number N of the first TCI states is greater than 1, and the type of the target uplink channel is PUSCH, UL RS resource, or UL RS resource set, then the target TCI states include: The first TCI state corresponding to the first identification information associated with the PDCCH where the DCI of the target uplink channel is located; Where the number N of the first TCI states is greater than 1, if the target uplink channel type is a PUSCH configured with uplink configuration grant type 1, then the target TCI state includes at least one of the following: The configuration information of the PUSCH of the uplink configuration authorization type 1 indicates the TCI status identifier or the first TCI status corresponding to the indicated CORESETPoolIndex. The network-side device indicates one or two of the first TCI states configured to the terminal via the first signaling. Wherein, when the number of the first TCI states is equal to 1, and when the target uplink channel corresponds to the same first identification information as the first TCI state, the target TCI state is determined to include the first TCI state; When the number of the first TCI states is equal to 1, when the target uplink channel corresponds to the same first identification information as the first TCI state, and when the target uplink channel corresponds to different first identification information as the first TCI state, it is determined that the target TCI state includes the original TCI state of the target uplink channel.

26. A method for determining the uplink TCI state, characterized in that, include: The network-side device indicates common beam information to the terminal. The common beam information includes N first transmission configuration indication TCI states, where the first TCI state is either a joint TCI state or an independent uplink UL TCI state, and N is an integer greater than or equal to 1. The network-side device determines the target TCI state of the target uplink channel based on the target information, wherein the target information includes at least one of the following: The number of the first TCI states; The order or position of the first TCI states; The correspondence between the first TCI state and the first identification information; The type of the target uplink channel; The 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 identifier information corresponding to the target uplink channel; The first identification information includes at least one of the following: Control resource set CORESET identification information; CORESET pool identification CORESETPoolIndex; Send the TRP identifier ID information of the receiving point; Channel group identification information; CORESET group identification information; Physical Uplink Control Channel (PUCCH) resource group identification information; The method further includes at least one of the following: Wherein, when the number N of the first TCI states is greater than K, K is the number of TCI states required by the target uplink channel, K is greater than or equal to 1, and the type of the target uplink channel is Physical Uplink Shared Channel (PUSCH), Physical Uplink Control Channel (PUCCH), or UL Reference Signal (RS) resource, the network-side device determines the target TCI state of the target uplink channel based on the target information, including: The network-side device determines that K first TCI states arranged in a preset position are the target TCI states of the target uplink channel; or, the network-side device determines the target TCI states of the target uplink channel according to the indication of first indication information from the network-side device, wherein the first indication information is used to indicate TCI states, and the TCI states indicated by the first indication information include K first TCI states out of the N first TCI states. Wherein, the type of the target uplink channel is PUSCH or PUCCH, and when 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, then the network-side device determines the target TCI state of the target uplink channel based on the target information, including: The network-side device determines to update the third preset TCI state among the original at least two TCI states of the target uplink channel to the first TCI state; wherein, the third preset TCI state is a TCI state that corresponds to one of the original at least two TCI states; Wherein, if the number N of the first TCI states is greater than 1, and the type of the target uplink channel is PUSCH, UL RS resource, or UL RS resource set, then the target TCI states include: The first TCI state corresponding to the first identification information associated with the PDCCH where the DCI of the target uplink channel is located; Where the number N of the first TCI states is greater than 1, if the target uplink channel type is a PUSCH configured with uplink configuration grant type 1, then the target TCI state includes at least one of the following: The configuration information of the PUSCH of the uplink configuration authorization type 1 indicates the TCI status identifier or the first TCI status corresponding to the indicated CORESETPoolIndex. The network-side device indicates one or two of the first TCI states configured to the network-side device via the first signaling; Wherein, when the number of the first TCI states is equal to 1, the network-side device determines the target TCI state of the target uplink channel based on the target information, including at least one of the following: When the target uplink channel corresponds to the same first identification information as the first TCI state, the network-side device determines that the target TCI state includes the first TCI state; When the target uplink channel corresponds to different first identification information than the first TCI state, the network-side device determines that the target TCI state includes the original TCI state of the target uplink channel.

27. The method according to claim 26, characterized in that, The number N of the first TCI states is 2, and the target uplink channel adopts a repetitive transmission mode: If the first indication information is 00, then the first of the two first TCI states can be selected for repeated transmission of the target uplink channel; If the first indication information is 01, then the second of the two first TCI states can be selected for repeated transmission of the target uplink channel; If the first indication information is 10, then the first of the two first TCI states is selected as the first TCI state used for repeated transmission of the target uplink channel, and the second of the two first TCI states is selected as the second TCI state used for repeated transmission of the target uplink channel. If the first indication information is 11, then the second of the two first TCI states is selected as the first TCI state used for repeated transmission of the target uplink channel, and the first of the two first TCI states is selected as the second TCI state used for repeated transmission of the target uplink channel.

28. The method according to claim 26, characterized in that, When the target information includes the number of the first TCI states, the network-side device determines the target TCI state of the target uplink channel based on the target information, including: When the terminal uses single-beam transmission, if the number of the first TCI states is one, then the network-side device determines that the transmission mode of the target uplink channel is single-beam transmission; or, When the terminal uses single-beam transmission, if the number of the first TCI states is at least two, the network-side device determines that the transmission mode of the target uplink channel is single-beam transmission, repeated transmission mode, or multi-beam simultaneous transmission mode; or, When the terminal uses a repetitive transmission mode or a multi-beam simultaneous transmission mode, 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 either single-beam transmission, the repetitive transmission mode, or the multi-beam simultaneous transmission mode; or, When the terminal adopts a repetitive transmission mode or a multi-beam simultaneous transmission mode, if the number of the first TCI states is at least two, the network-side device determines that the transmission mode of the target uplink channel is the repetitive transmission mode or the multi-beam simultaneous transmission mode.

29. The method according to claim 28, characterized in that, The first indication information is carried in the first signaling field, which is the signaling field in the Media Access Control (MAC) Control Unit (CE) signaling or DCI signaling.

30. The method according to any one of claims 26 to 29, characterized in that: If the target uplink channel has M TCI states, and the number of the first TCI states is at least M, then the target TCI states are at least M of the first TCI states, where M is an integer greater than or equal to 2; or, If the target uplink channel has M TCI states, and N is less than M, then the target TCI state is the original M TCI states of the target uplink channel; or, the target TCI state is the original (MN) 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... If the target uplink channel has one TCI state, and the number of the first TCI states is at least one, then the target TCI state is at least one first TCI state.

31. The method according to any one of claims 26 to 29, characterized in that, The target information also includes the transmission mode of the target uplink channel. The transmission mode includes: a preset transmission mode, a repeated transmission mode, a multi-beam simultaneous transmission mode, or a transmission mode that dynamically switches between the preset transmission mode, the repeated transmission mode, and the multi-beam simultaneous transmission mode. The preset transmission mode is a single-beam transmission without repeated transmission. The network-side device determines the target TCI state of the target uplink channel based on the target information, including: The network-side device determines the target TCI state of the target uplink channel from the first TCI state based on the transmission mode of the target uplink channel. The method further includes: The network-side device sends a second indication information to the terminal, wherein the second indication information is used to indicate the transmission mode of the target uplink channel.

32. The method according to any one of claims 26 to 29, characterized in that, The target uplink channel type includes at least one of the following: Physical Uplink Control Channel (PUCCH), Physical Uplink Shared Channel (PUSCH), and UL Reference Signal (RS) resource.

33. The method according to claim 32, characterized in that: The PUCCH includes at least one of the following: Any PUCCH; Preset physical downlink control channel (PDCCH) scheduling or associated PUCCH; A terminal-specific PUCCH; And / or, The PUSCH includes at least one of the following: Arbitrary PUSCH; Preset PDCCH scheduling or associated PUSCH; Dynamically scheduled PUSCH; A terminal-specific PUSCH; Configure the authorized PUSCH.

34. The method according to claim 33, characterized in that, The preset PDCCH includes at least one of the following: All PDCCHs, PDCCHs on the terminal-specific control resource set CORESET, PDCCHs on the CORESET associated only with the terminal-specific search space USS, PDCCHs on the CORESET associated with both the USS and the public search space CSS, PDCCHs on the CORESET associated only with CSS, and PDCCHs on the CORESET except CORESET#0.

35. The method according to claim 26, characterized in that, When the number of the first TCI states is greater than 1: The target TCI state includes at least one of the following: All first TCI states; The network-side device indicates at least two first TCI states from all the first TCI states for the target uplink channel in either the repetitive transmission mode or the multi-beam simultaneous transmission mode. The network-side device indicates a first TCI state from all the first TCI states; The first TCI state is the same as the first PDCCH's TCI state, wherein the first PDCCH is used to schedule or trigger the target uplink channel transmission; or the first PDCCH is used to schedule the target PDSCH, and the 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 includes the first TCI state corresponding to the first identification information associated with the target uplink channel; The target TCI state includes the 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. At least two first TCI states corresponding to the at least two first identification information, wherein the target uplink channel is associated with at least two first identification information; At least one first TCI state corresponding to the first identification information, wherein the target uplink channel is associated with a first identification information; At least two first TCI states are determined based on a preset correspondence.

36. The method according to claim 35, characterized in that, The preset correspondence includes: The order or position of the first TCI states corresponds to the TCI states of each repeated transmission of the target uplink channel; or, The order or position of the first TCI states corresponds to each TCI state of the target uplink channel.

37. The method according to claim 26, characterized in that, 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, then the target TCI states include the first preset TCI states, wherein the first preset TCI states include at least one of the following: The first TCI states arranged in preset positions among all the first TCI states; The first TCI state corresponding to the preset first identifier information; The network-side device indicates the first TCI state from all the first TCI states.

38. The method according to claim 26, characterized in that, When the number of the first TCI states is greater than 1, if the time-domain behavior of the target uplink channel is a periodic uplink channel or the time-domain behavior of the information carried is periodic information, the target TCI state includes at least one of the following: Other TCI states in the TCI state pool besides the first TCI state, or the original TCI state of the target uplink channel; or, The first TCI state corresponding to the first identifier information associated with the target uplink channel; or, Preset the first TCI state; or, The first TCI state indicated by the third indication information from the network-side device; or, Second preset TCI state; The second preset TCI state includes at least one of the following: The first TCI states arranged in preset positions among all the first TCI states; The first TCI state corresponding to the preset first identifier information.

39. The method according to claim 26, characterized in that, If the number of the first TCI states is greater than 1, and the type of the target uplink channel is PUSCH, UL RS resource, or UL RS resource set, then the target TCI state includes at least one of the following: At least one of the first TCI state corresponding to the first code point or the first TCI state corresponding to the first code point, wherein the first code point is the code point indicated by the TCI field in the DCI indicating the first TCI state. The first TCI state corresponding to the preset first identifier information; The first TCI state is the same as the TCI state of the PDCCH where the DCI of the target uplink channel is located; The first TCI state corresponding to the first identifier information associated with the target uplink channel.

40. The method according to claim 39, characterized in that, When the transmission mode of the PDCCH indicating the DCI state of the first TCI state is a repetitive transmission mode or a multi-beam simultaneous transmission mode, the target TCI state includes: The first TCI state that is the same as the TCI state of the PDCCH that is transmitted repeatedly or simultaneously with multiple beams, or at least one of the first TCI states used in the PDCCH transmission that is transmitted repeatedly or simultaneously with multiple beams.

41. The method according to claim 26, characterized in that, If the number of the first TCI states is greater than 1, and the target uplink channel type is a PUSCH configured with uplink configuration grant type 1, then the target TCI state includes at least one of the following: The first TCI state corresponding to the preset CORESETPoolIndex, wherein the preset CORESETPoolIndex includes the CORESETPoolIndex corresponding to the signaling that sends PUSCH configuration information, or the preset CORESETPoolIndex is a preset value of CORESETPoolIndex; All the first TCI states are arranged in a preset position; The first TCI state of the preset SRS resource, wherein the preset SRS resource is the SRS resource indicated by the Probe Reference Signal SRS Resource Indicator (SRI) in the configuration information of the PUSCH of the uplink configuration grant type 1. At least one of the first TCI states is determined based on the power control parameters in the PUSCH configuration information of the uplink configuration authorization type 1.

42. The method according to claim 26, characterized in that, If the number of the first TCI states is greater than 1, and the type of the target uplink channel is a UL RS resource or resource set, then the target TCI states include: The first TCI state of the first identification information that is associated with the same UL RS resource or resource set; The first TCI state is the same as the TCI state that triggers the PDCCH of the UL RS resource or resource set; The first TCI state corresponding to the UL RS resource or resource set, wherein each UL RS resource or resource set has its own corresponding TCI state.

43. The method according to claim 26, characterized in that, When the number of the first TCI states is equal to 1, if the transmission mode of the target uplink channel is a repetitive transmission mode or a multi-beam simultaneous transmission mode, then the network-side device determines the target TCI state of the target uplink channel based on the target information, including at least one of the following: The network-side device determines that the configuration of the repeated transmission mode or the multi-beam simultaneous transmission mode of the target uplink channel is invalid. The network-side device determines that the target uplink channel is transmitted based on the first TCI state; The network-side device determines that the target TCI state includes at least two existing TCI states of the target uplink channel. The network-side device determines to update the third preset TCI state among the original at least two TCI states of the target uplink channel to the first TCI state; wherein 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 the original at least two TCI states of the target uplink channel located at a preset position; or the third preset TCI state is associated with the first TCI state.

44. The method according to claim 26, characterized in that, When the number of the first TCI states is equal to 1, the network-side device determines the target TCI state of the target uplink channel based on the target information, including at least one of the following: When the target uplink channel corresponds to the same first identification information as the first TCI state, the network-side device determines that the target TCI state includes the first TCI state; When the first identification information corresponding to the target uplink channel is different from the first TCI state, the network-side device determines that the target TCI state includes the original TCI state of the target uplink channel or determines that the PUSCH or UL RS stops transmission. The network-side device determines the target TCI state, including the TCI state of the PDCCH that schedules or triggers the target uplink channel; or, If the number of the first TCI states is equal to 1, and the target uplink channel originally had at least two TCI states, then the network-side device determines the target TCI state of the target uplink channel based on the target information, including: The network-side device determines the target TCI state as the first TCI state; or... The network-side device determines that the target TCI state includes at least two existing TCI states of the target uplink channel; or... The network-side device determines to update the fourth preset TCI state among the original at least two TCI states of the target uplink channel to the first TCI state; wherein 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 the original at least two TCI states of the target uplink channel arranged in a preset position, or the fourth preset TCI state is associated with the first TCI state.

45. The method according to claim 44, characterized in that, When the type of the target uplink channel is a UL RS resource or resource set, the network-side device determines the target TCI state as the first TCI state, including: The network-side device determines that the target TCI state of the UL RS resource or all RS resources in the resource set associated with the first TCI state includes the first TCI state; or The network-side device determines the target TCI state of the UL RS resource or all RS resources in the resource set that have the same first identification information as the first TCI state, including the first TCI state.

46. ​​The method according to claim 26, characterized in that, The transmission mode of the target uplink channel is a repetitive transmission mode, or the type of the target uplink channel is a PUSCH or UL RS resource and the target DCI scheduling the target uplink channel simultaneously schedules at least two PUSCH or at least two UL RS resources. After the network-side device obtains the common beam information indicated by the network-side device from the terminal, the method further includes: The network-side device receives first feedback information from the terminal, the first feedback information being used to indicate that the terminal has correctly received the common beam information; The network-side device configures the public beam information to take effect based on the first feedback information; The network-side device determines whether the target uplink channel is repeatedly transmitted in a time slot after the second time or whether the PUSCH or UL RS resources scheduled by the target DCI in a time slot after the second time are transmitted using the common beam information, wherein the second time is the effective time of the common beam information.

47. An uplink TCI state determination device, characterized in that, Applied to network-side devices, the device includes: The indication module is used to indicate common beam information to the terminal. The common beam information includes N first transmission configuration indication TCI states, where the first TCI state is either a joint TCI state or an independent uplink UL TCI state, and N is an integer greater than or equal to 1. The second determining module is used to determine the target TCI state of the target uplink channel based on the target information, wherein the target information includes at least one of the following: The number of the first TCI states; The order or position of the first TCI states; The correspondence between the first TCI state and the first identification information; The type of the target uplink channel; The 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 identifier information corresponding to the target uplink channel; The first identification information includes at least one of the following: Control resource set CORESET identification information; CORESET pool identification CORESETPoolIndex; Send the TRP identifier ID information of the receiving point; Channel group identification information; CORESET group identification information; Physical Uplink Control Channel (PUCCH) resource group identification information; The second determining module is specifically used for at least one of the following: Wherein, when the number N of the first TCI states is greater than K, K is the number of TCI states required by the target uplink channel, K is greater than or equal to 1, the type of the target uplink channel is Physical Uplink Shared Channel (PUSCH), Physical Uplink Control Channel (PUCCH), or UL Reference Signal (RS) resource, and K of the first TCI states arranged in a preset position are determined as the target TCI states of the target uplink channel; or, the target TCI states of the target uplink channel are determined according to the indication of the first indication information from the network-side device, wherein the first indication information is used to indicate the TCI states, and the TCI states indicated by the first indication information include K of the N first TCI states; Wherein, the type of the target uplink channel is PUSCH or PUCCH, and when 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, then it is determined that the third preset TCI state among the original at least two TCI states of the target uplink channel will be updated to the first TCI state; wherein, the third preset TCI state is a TCI state that has a corresponding relationship with one of the first TCI states among the original at least two TCI states. Wherein, if the number N of the first TCI states is greater than 1, and the type of the target uplink channel is PUSCH, UL RS resource, or UL RS resource set, then the target TCI states include: The first TCI state corresponding to the first identification information associated with the PDCCH where the DCI of the target uplink channel is located; Where the number N of the first TCI states is greater than 1, if the target uplink channel type is a PUSCH configured with uplink configuration grant type 1, then the target TCI state includes at least one of the following: The configuration information of the PUSCH of the uplink configuration authorization type 1 indicates the TCI status identifier or the first TCI status corresponding to the indicated CORESETPoolIndex. The network-side device indicates one or two of the first TCI states configured to the terminal via the first signaling. Wherein, when the number of the first TCI states is equal to 1, and when the target uplink channel corresponds to the same first identification information as the first TCI state, the target TCI state is determined to include the first TCI state; When the number of the first TCI states is equal to 1, when the target uplink channel corresponds to the same first identification information as the first TCI state, and when the target uplink channel corresponds to different first identification information as the first TCI state, it is determined that the target TCI state includes the original TCI state of the target uplink channel.

48. A terminal, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the uplink TCI state determination method as described in any one of claims 1 to 24.

49. A network-side device, characterized in that, It includes a processor and a memory, the memory storing a program or instructions that can run on the processor, the program or instructions being executed by the processor to implement the steps of the uplink TCI state determination method as described in any one of claims 26 to 46.

50. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the uplink TCI state determination method as described in any one of claims 1 to 24, or implement the steps of the uplink TCI state determination method as described in any one of claims 26 to 46.

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