Method and apparatus for determining transmission configuration indication status - Patents.com

Abstract

The embodiments of the present disclosure disclose a method and apparatus for determining a transmission configuration indication state, which can be applied in the field of communication technology. The method performed by a terminal device includes the steps of receiving indication information, the indication information being used to indicate at least one set of transmission configuration indication (TCI) states, and determining a TCI state for transmission of the channel and / or signal based on at least one of a setting for the channel and / or signal, a number of TCI states indicated in the indication information, and a type of channel, so that after receiving the at least one set of TCI states, the terminal device determines a TCI state for transmission of the channel and / or signal based on information such as a setting for the channel and / or signal, and a number of TCI states indicated in the indication information, thereby keeping the TCI state for transmission of the channel and / or signal determined by the terminal device consistent with that determined by the network device, ensuring transmission reliability, and improving transmission quality.

Description

[Technical field]

[0001] The present disclosure relates to the field of communications technology, and in particular to a method and apparatus for determining a transmission configuration indication state. [Background technology]

[0002] In order to guarantee coverage, communication systems must use beam-based transmission and reception.

[0003] In related systems, a joint transmission configuration indication (TCI) state can be used to perform uplink-downlink split indication or joint indication in order to reduce signaling overhead. Meanwhile, when at least one set of TCI states is indicated by a single downlink control information (DCI), how a terminal device sets up a channel or signal based on multiple sets of TCI state transmissions, determines which TCI state to use for transmission, and maintains a consensus on the use of TCI states between a terminal device and a network device is currently an issue that needs to be resolved urgently. Summary of the Invention [Problem to be solved by the invention]

[0004] SUMMARY OF THE DISCLOSURE The embodiments of the present disclosure provide a method and apparatus for determining a transmission configuration indication state. [Means for solving the problem]

[0005] According to a first aspect, an embodiment of the present disclosure provides a method for determining a transmission configuration indication state, the method being executed by a terminal device, the method including: receiving indication information, the indication information being used to indicate at least one set of transmission configuration indication (TCI) states; and determining a TCI state for transmission of the channel and / or signal based on at least one of a configuration for the channel and / or signal, a number of TCI states indicated in the indication information, and a type of channel.

[0006] In the present disclosure, after receiving at least one set of TCI states instructed by a network device, the terminal device can determine a TCI state for the transmission of a channel and / or signal based on the settings for the channel and / or signal, such as at least one of information such as the number of TCI states instructed in the instruction information, thereby maintaining consistency between the TCI state for the transmission of the channel and / or signal determined by the terminal device and the TCI state determined by the network device, ensuring the reliability of transmission, and improving the transmission quality.

[0007] According to a second aspect, an embodiment of the present disclosure provides a method for determining a transmission configuration indication state, the method being performed by a network device, the method including the steps of: sending indication information to a terminal device, the indication information being used to indicate at least one set of transmission configuration indication (TCI) states; and determining a TCI state for transmission of the channel and / or signal based on at least one of a setting for the channel and / or signal in the terminal device, a number of TCI states indicated in the indication information, and a type of channel.

[0008] In the present disclosure, after a network device sends at least one set of TCI states to a terminal device, the network device can determine a TCI state for transmission of a channel and / or signal based on settings for the channel and / or signal, thereby ensuring that the TCI state for transmission of the channel and / or signal determined by the terminal device is consistent with that determined by the network device, ensuring transmission reliability, and improving transmission quality.

[0009] According to a third aspect, an embodiment of the present disclosure provides a communication apparatus, the apparatus being configured in a terminal device, the apparatus including: a transceiver module for receiving indication information, the indication information being used to indicate at least one set of transmission configuration indication (TCI) states; and a processing module for determining a TCI state for transmission of the channel and / or signal based on at least one of a configuration for the channel and / or signal, a number of TCI states indicated in the indication information, and a type of the channel.

[0010] According to a fourth aspect, an embodiment of the present disclosure provides a communication apparatus, the apparatus being configured in a network device, the apparatus including: a transceiver module for transmitting indication information to a terminal device, the indication information being used to indicate at least one set of transmission configuration indication (TCI) states; and a processing module for determining a TCI state for transmission of the channel and / or signal based on at least one of a configuration for the channel and / or signal in the terminal device, a number of TCI states indicated in the indication information, and a type of channel.

[0011] According to a fifth aspect, an embodiment of the present disclosure provides a communication device, the communication device including a processor, the communication device executing the method according to the first aspect when the processor invokes a computer program in a memory.

[0012] According to a sixth aspect, an embodiment of the present disclosure provides a communication device, the communication device including a processor, the communication device executing the method according to the second aspect when the processor invokes a computer program in a memory.

[0013] According to a seventh aspect, an embodiment of the present disclosure provides a communication device, the communication device including a processor and a memory, a computer program stored in the memory, and the processor executes the computer program stored in the memory to cause the communication device to perform the method according to the first aspect.

[0014] According to an eighth aspect, an embodiment of the present disclosure provides a communication device, the communication device including a processor and a memory, a computer program stored in the memory, and the processor executes the computer program stored in the memory to cause the communication device to perform the method according to the second aspect.

[0015] According to a ninth aspect, an embodiment of the present disclosure provides a communication device, the device including a processor and an interface circuit, the interface circuit being used for receiving and transmitting code instructions to the processor, the processor executing the code instructions to cause the device to perform the method according to the first aspect.

[0016] According to a tenth aspect, an embodiment of the present disclosure provides a communication device, the device including a processor and an interface circuit, the interface circuit being used to receive and transmit code instructions to the processor, the processor executing the code instructions to cause the device to perform the method according to the second aspect.

[0017] According to an eleventh aspect, an embodiment of the present disclosure provides a communication system, the system comprising a communication device according to the third aspect and a communication device according to the fourth aspect, or the system comprising a communication device according to the fifth aspect and a communication device according to the sixth aspect, or the system comprising a communication device according to the seventh aspect and a communication device according to the eighth aspect, or the system comprising a communication device according to the ninth aspect and a communication device according to the tenth aspect.

[0018] According to a twelfth aspect, an embodiment of the present invention provides a computer readable storage medium, used to store instructions for use in a terminal device as defined above, which, when executed, cause the terminal device to perform the method according to the first aspect.

[0019] According to a thirteenth aspect, an embodiment of the present invention provides a readable storage medium, used to store instructions for use in a network device as defined above, which, when executed, cause the network device to perform the method according to the second aspect.

[0020] According to a fourteenth aspect, the present disclosure provides a computer program product comprising a computer program, which, when executed on a computer, causes the computer to perform the method according to the first aspect above.

[0021] According to a fifteenth aspect, the present disclosure provides a computer program product comprising a computer program, which, when executed on a computer, causes the computer to perform the method according to the second aspect above.

[0022] According to a sixteenth aspect, the present disclosure provides a chip system, the chip system including at least one processor and an interface, used to support a terminal device to realize the function according to the first aspect, for example, to determine or process at least one of the data and information according to the above-mentioned method. In a possible design, the chip system further includes a memory, the memory being used to store computer programs and data required for the terminal device. The chip system may be composed of a chip, or may include a chip and other discrete devices.

[0023] According to a seventeenth aspect, the present disclosure provides a chip system, the chip system including at least one processor and an interface, used to support a network device to realize the functionality according to the second aspect, for example, to determine or process at least one of the data and information according to the above method. In a possible design, the chip system further includes a memory, the memory being used to store computer programs and data required by the network device. The chip system may be comprised of a chip, or may include chips and other discrete devices.

[0024] According to an eighteenth aspect, the present disclosure provides a computer program which, when executed on a computer, causes the computer to perform the method according to the first aspect above.

[0025] According to a nineteenth aspect, the present disclosure provides a computer program which, when executed on a computer, causes the computer to perform the method according to the second aspect above. [Brief description of the drawings]

[0026] In order to more clearly describe the technical solutions in the embodiments or background art of the present application, the drawings which need to be used in the embodiments or background art of the present application are described below. [Figure 1]1 is a schematic architecture diagram of a communication system provided by an embodiment of the present disclosure. [Diagram 2] 4 is a flowchart of a method for determining a transmission setting indication state provided by an embodiment of the present disclosure. [Diagram 3] 4 is a flowchart of a method for determining another transmission setting indication state provided by an embodiment of the present disclosure; [Figure 4] 4 is a flowchart of a method for determining another transmission setting indication state provided by an embodiment of the present disclosure; [Diagram 5] 4 is a flowchart of a method for determining another transmission setting indication state provided by an embodiment of the present disclosure; [Figure 6] 4 is a flowchart of a method for determining another transmission setting indication state provided by an embodiment of the present disclosure; [Figure 7] 4 is a flowchart of a method for determining another transmission setting indication state provided by an embodiment of the present disclosure; [Figure 8] 4 is a flowchart of a method for determining another transmission setting indication state provided by an embodiment of the present disclosure; [Figure 9] 4 is a flowchart of a method for determining another transmission setting indication state provided by an embodiment of the present disclosure; [Figure 10] 4 is a flowchart of a method for determining another transmission setting indication state provided by an embodiment of the present disclosure; [Figure 11] 4 is a flowchart of a method for determining another transmission setting indication state provided by an embodiment of the present disclosure; [Figure 12] FIG. 1 is a schematic configuration diagram of a communication device provided according to an embodiment of the present disclosure. [Figure 13] FIG. 2 is a schematic configuration diagram of another communication device provided by an embodiment of the present disclosure. [Figure 14] FIG. 1 shows a schematic diagram of a chip provided according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0027] To facilitate understanding, we first introduce some terminology relevant to this disclosure.

[0028] 1. Transmission configuration indication (TCI) It is used to inform the user to receive a physical downlink control channel (PDCCH), a physical downlink shared channel (PDSCH), and use the same reception spatial parameters / information as which synchronization signal block (SSB) or channel state information reference signal (CSI-RS) transmitted by the receiving network device, or to inform the user to transmit a physical uplink control channel (PUCCH), a physical uplink shared channel (PUSCH), using the same transmission spatial parameters / information as which reference signal (e.g., SRS or CSI-RS) to transmit.

[0029] 2. Downlink control information (DCI) The downlink control information carried by the downlink physical control channel (PDCCH) and transmitted by the network device to the terminal device includes uplink / downlink resource allocation, Hybrid Automatic Repeat reQuest (HARQ) information, power control, etc.

[0030] In order to better understand the method for determining a transmission setting indication state disclosed in the embodiments of the present disclosure, the following first describes a communication system applicable to the embodiments of the present disclosure.

[0031] Referring to Figure 1, Figure 1 is an architecture of a communication system provided by an embodiment of the present application. The communication system can include, but is not limited to, one network device and one terminal device, and the number and form of devices shown in Figure 1 are only examples and do not constitute limitations of the embodiment of the present application, and in actual applications, the system can include two or more network devices and two or more terminal devices. The communication system shown in Figure 1 takes a network device 11 and a terminal device 12 as an example.

[0032] It should be noted that the technical solutions of the embodiments of the present application may be applied to various communication systems, such as a long term evolution (LTE) system, a 5th generation (5G) mobile communication system, a 5G new radio (NR) system, or other future new mobile communication systems.

[0033] The network device 11 in the embodiment of the present application is an entity for transmitting and receiving signals on the network side. For example, the network device 11 may be an evolved base station (eNB), a transmission reception point (TRP), a next generation base station (gNB) in an NR system, a base station in other future mobile communication systems, or an access point in a wireless fidelity (WiFi) system. The embodiment of the present application does not limit the specific technology and specific device form used for the network device. The network device provided by the embodiment of the present application may be composed of a central unit (CU) and a distributed unit (DU), where the CU is also called a control unit, and the CU-DU structure can be used to separate the protocol layer of a base station, for example, a base station, and some functions of the protocol layer are centrally controlled by the CU, and some or all of the remaining protocol layer functions are distributed in the DU, and the CU centrally controls the DU.

[0034] The terminal device 12 in the embodiment of the present application is an entity for transmitting and receiving signals on the user side, for example, a mobile phone. The terminal device may be called a terminal, a user equipment (UE), a mobile station (MS), a mobile terminal (MT), etc. The terminal device may be an automobile with a communication function, a smart car, a mobile phone, a wearable device, a tablet (Pad), a personal computer equipped with a wireless transmission and reception function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, a wireless terminal device in a smart home, etc. The embodiment of the present application does not limit the specific technology and the specific device form used for the terminal device.

[0035] It should be noted that the communication system described in the embodiments of the present application is for more clearly illustrating the technical solutions of the embodiments of the present application, and does not limit the technical solutions provided by the embodiments of the present application. As those skilled in the art can understand, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present application can also be applied to similar technical problems.

[0036] In the present disclosure, when multiple sets of TCI states are indicated via a single DCI, in order to maintain a consistent understanding of the use of TCI states between a terminal device and a network device and to ensure the reliability of transmission, a method for determining a TCI state based on a setting for a channel and / or a signal is provided, in order to maintain a consistent understanding of the use of TCI states between a terminal device and a network device and to ensure the reliability of transmission.

[0037] In addition, in the present disclosure, the method of determining a transmission setting indication state provided by any one of the embodiments can be performed individually, or can be performed together in combination with possible implementation methods in other embodiments, and can also be performed together in combination with any technical solution in the related art.

[0038] Please refer to Fig. 2, which is a flowchart of a method for determining a transmission configuration indication state provided by an embodiment of the present disclosure. The method is executed by a terminal device. As shown in Fig. 2, the method may include, but is not limited to, the following steps: step 201, receiving indication information, the indication information is used to indicate at least one set of transmission configuration indication (TCI) state;

[0039] A set of TCI states refers to one TCI state or one pair of TCI states, for example, a set of TCI states may be one joint TCI state (also referred to as DL or jointTCIstate), or one independent downlink (DL) TCI state, or one independent uplink (UL) TCI state; or one independent DL TCI state and one independent UL TCI state, etc., and the present disclosure is not limited in this respect.

[0040] Optionally, the indication information may be a medium access control layer (MAC) control element (CE), i.e. activating at least one set of TCI state associated with one codepoint via the MAC CE.

[0041] Optionally, the indication information may further include a MAC CE and a DCI, that is, firstly, directly activate at least one set of TCI states respectively associated with multiple codepoints via the MAC CE, and the DCI indicates one of the codepoints, where the codepoint is associated with at least one set of TCI states.

[0042] Step 202: determining a TCI state for transmission of the channel and / or signal based on at least one of a setting for the channel and / or signal, a TCI state number indicated in the indication information, and a type of the channel.

[0043] The channel or type of channel includes at least one of PDCCH, PDSCH, dynamic grant PUSCH, configured grant second type PUSCH, repeated transmission of configured grant second type PUSCH, repeated transmission of configured grant first type PUSCH, configured grant second type PUSCH, and PUCCH. The dynamically granted PUSCH may also be referred to as dynamic grant PUSCH, the configured granted second type PUSCH may be referred to as type2 configured grant PUSCH or configured grant type2 PUSCH, and the configured granted first type PUSCH may be referred to as type1 configured grant PUSCH or configured grant type1 PUSCH, etc.

[0044] The signal includes at least one of a channel state information reference signal (CSI RS) and a sounding reference signal (SRS).

[0045] Optionally, each of the above signals may be any type of signal including periodic, semi-persistent, and aperiodic.

[0046] Optionally, one set of TCI states among the at least one set of TCI states indicated by the indication information includes one joint TCI state (also called DL or joint TCI state), i.e., the joint TCI state can be used for uplink and downlink channels / signals simultaneously.

[0047] Alternatively, one set of TCI states among the at least one set of TCI states indicated by the indication information includes an independent uplink (UL) TCI state and / or a downlink (DL) TCI state.

[0048] In the present disclosure, after receiving at least one set of TCI states indicated by a network device, the terminal device can determine a TCI state for a channel based on a type of the channel, or can determine a TCI state for transmission of a channel and / or signal based on settings for the channel and / or signal, or can determine a TCI state for transmission of a channel and / or signal based on specific indication of some TCI states in the indication information, or can determine a TCI state for transmission of a channel and / or signal based on settings for the channel and / or signal and specific indication of some TCI states in the indication information, and the present disclosure is not limited in this respect.

[0049] The configuration for a channel and / or signal may be used to indicate whether the channel or signal is transmitted based on one set of TCI states or multiple sets of TCI states.

[0050] Optionally, the present disclosure may determine the configuration based on the number of transmission reception points (TRPs) configured in a channel and / or signal, for example, if the CSI RS and SRS each configure a single (S) TRP, the configuration may be determined to be transmission based on one set of TCI states, or if the PDCCH channel configures multiple (M) TRPs, the PDCCH configuration may be transmission based on multiple sets of TCI states, etc.

[0051] Optionally, each of the above signals may be transmitted based on the S-TRP, that is, the setting of each signal is transmitted based on a set of TCI states.

[0052] Optionally, the channel transmission may be a transmission based on at least two sets of TCI states and / or a repeated transmission.

[0053] Optionally, the number of TCI states indicated by the indication indicates whether one set of TCI states is indicated in the indication or whether at least two sets of TCI states are indicated.

[0054] The type of channel refers to whether the channel is any one or any of several channels listed above.

[0055] Optionally, for the PDCCH, PDSCH, PUCCH and PUSCH, the configuration of at least one channel may be transmission based on one set of TCI states, and the configuration of at least one channel may be transmission based on multiple sets of TCI states.

[0056] For example, the combinations of settings for each channel may be as follows: S-TRP PDCCH and M-TRP PDSCH; S-TRP PDSCH and M-TRP PDCCH; S-TRP PDCCH and M-TRP PUSCH; S-TRP PUSCH and M-TRP PDCCH; S-TRP PUSCH and M-TRP PDSCH; S-TRP PDSCH and M-TRP PUSCH; S-TRP PDCCH, M-TRP PDSCH and M-TRP PUSCH; S-TRP PDCCH, M-TRP PDSCH and M-TRP PUCCH; S-TRP PDCCH, S-TRP PUCCH, M-TRP PDSCH and M-TRP PUSCH; S-TRP PDCCH, M-TRP PUCCH, M-TRP PDSCH and M-TRP PUSCH; S-TRP PDCCH, M-TRP PUCCH, M-TRP PDSCH and M-TRP PUSCH, etc.

[0057] The M-TRP PDCCH may include setting a search space (SS) set having two link relationships, where PDCCH candidates having the same PDCCH candidate number in two SS sets are used to transmit one PDCCH, and each SS set is associated with each CORESET. Alternatively, the M-TRP PDCCH may be a method including setting a single frequency network (SFN), that is, one CORESET sets two TCI states, and any one PDCCH candidate in the CORESET is associated with two TCI states.

[0058] M-TRP PDSCH refers to a repetition mode repetitionscheme, a repetition number repetitionnumber, or two code division multiplexing (CDM) groups configured for the PDSCH, where repetitionscheme includes at least one of frequency division multiplexing (FDM) scheme A, FDM scheme B, and time division multiplexing (TDM) scheme A.

[0059] The M-TRP PUSCH indicates that the PUSCH is associated with at least one of the following: two sounding reference signal resource indicators (SRS resource indicators), two layer fields, two PUSCH precoder fields, and two SRS resource sets.

[0060] The M-TRP PUCCH indicates that the PUCCH is associated with at least one of two pieces of spatial relationship information (spatial-relation-info), two TCI states (including an independent UL TCI state or a joint TCI state), and two power control parameter sets.

[0061] In the present disclosure, after receiving at least one set of TCI states instructed by a network device, the terminal device can determine a TCI state for the transmission of a channel and / or signal based on the settings for the channel and / or signal, such as at least one of information such as the number of TCI states instructed in the instruction information, thereby maintaining consistency between the TCI state for the transmission of the channel and / or signal determined by the terminal device and the TCI state determined by the network device, ensuring the reliability of transmission, and improving the transmission quality.

[0062] Please refer to Fig. 3, which is a flowchart of another method for determining a transmission configuration indication state provided by an embodiment of the present disclosure. The method is executed by a terminal device. As shown in Fig. 3, the method may include, but is not limited to, the following steps: step 301, receiving indication information, the indication information is used to indicate at least one set of transmission configuration indication (TCI) state;

[0063] The specific implementation process of the above step 301 may refer to the detailed description of any embodiment of the present disclosure, and will not be described further here.

[0064] Step 302: In response to the indication information indicating at least two sets of TCI states and the setting for the channel being transmission and / or repeated transmission based on the at least two sets of TCI states, it is determined that the TCI state for channel transmission is a TCI state included in the at least two sets of TCI states.

[0065] Optionally, the channel for transmission based on the at least two sets of TCI states may be any one of: PDCCH, PDSCH, PUSCH of dynamic grant, PUSCH of second type of configured grant, repeated transmission of PUSCH of second type of configured grant, repeated transmission of PUSCH of first type of configured grant, PUSCH of first type of configured grant, and PUCCH. The PUSCH of the configured grant of second type, the repeated transmission of PUSCH of the configured grant of second type, and the repeated transmission of PUSCH of the configured grant of first type need to indicate DCI. The PUSCH of the configured grant of first type does not need to indicate DCI.

[0066] For the combination of settings for each channel, the format can be referred to the detailed description of any embodiment of the present disclosure, and will not be described further here.

[0067] In the present disclosure, after the terminal device receives at least two sets of TCI states instructed by the network device, for a channel transmission of a transmission based on the at least two sets of TCI states and / or a repeated transmission, the TCI state for the channel transmission is a TCI state included in the at least two sets of TCI states, thereby keeping the TCI state for the channel and / or signal transmission determined by the terminal device consistent with that determined by the network device, ensuring the reliability of transmission, and improving the transmission quality.

[0068] Please refer to Fig. 4, which is a flowchart of another method for determining a transmission configuration indication state provided by an embodiment of the present disclosure. The method is executed by a terminal device. As shown in Fig. 4, the method may include, but is not limited to, the following steps: step 401, receiving indication information, the indication information is used to indicate a set of transmission configuration indication (TCI) states;

[0069] The specific implementation of the above step 401 may refer to the detailed description of any embodiment of the present disclosure, and will not be described further here.

[0070] Step 402, in response to a set of TCI states being indicated in the indication information, determines that the TCI states for transmission of the channel and / or signal are the indicated set of TCI states.

[0071] In the present disclosure, when the indication information indicates a set of TCI states, regardless of transmission based on some TCI states of channel or signal settings, all terminal devices at this time can decide to transmit based on the newly indicated set of TCI states.

[0072] That is, if a channel is configured for transmission based on multiple sets of TCI states, but the current indication information indicates only one set of TCI states, the channel can be temporarily reverted to transmission based on one set of TCI states, i.e., transmission of the S-TRP.

[0073] Optionally, for a channel whose configuration is transmission based on multiple sets of TCI states, if the network device indicates only one set of TCI state transmission, the terminal device may only determine that the TCI state for partial channel transmission is the TCI state of the indicated set.

[0074] For example, for a PDSCH, a dynamically allowed PUSCH, a configured second type PUSCH, or repeated transmission of a configured second type PUSCH, or repeated transmission of a configured first type PUSCH, these channels are configured for transmission based on multiple sets of TCI states. However, when the terminal device receives indication information of only one set of TCI states, it can determine that the TCI state for these channel transmissions is the indicated one set of TCI states.

[0075] Optionally, for a PDCCH transmitted based on a second CORESET, and the second CORESET configures at least two sets of TCI states, and the current indication information indicates only one set of TCI states, the terminal device may also determine that the TCI state for the PDCCH transmission is the one set of TCI states indicated by the indication information, i.e., the PDCCH transmission temporarily reverts to transmission based on one set of TCI states, i.e., transmission of an S-TRP.

[0076] A single frequency network (SFN) method is configured in the second CORESET, including SFN method 1 and method 2. That is, the same time-frequency domain resource and the same port can be used, and different TCI states transmit PDCCHs in PDCCH candidates associated with the corresponding CORESET.

[0077] Optionally, for a first PDCCH, if the first PDCCH includes two candidate PDCCHs (i.e., PDCCH candidates), and two search space sets (SS sets) associated with the two PDCCH candidates have a link relationship, the SS sets are associated with respective CORESETs, and the current indication information indicates only one set of TCI states, the terminal device can also determine that the TCI state for the first PDCCH transmission is the set of TCI states indicated by the indication information. That is, the terminal only needs to receive the PDCCH in a PDCCH candidate associated with the set of TCI states indicated by the indication information based on the set of TCI states. There is no need to monitor a PDCCH candidate that does not indicate another TCI state.

[0078] That is, when the terminal device receives a set of TCI states indicated by the network device, it can determine that the transmission of a certain partial channel is based on this set of TCI states. That is, if the setting for the above partial channel is transmission based on multiple sets of TCI states, at this time, it is necessary to temporarily switch to transmission based on one set of TCI states, i.e., roll back to S-TRP.

[0079] Optionally, the terminal device may determine the TCI state for the remaining channel transmission based on the configuration of the remaining channels other than the above partial channels, for example, when the configuration is based on one set of TCI states for a channel or signal, the terminal device may determine transmission based on the indicated one set of TCI states, and when the configuration is based on multiple sets of TCI states for a channel, the terminal device may set the TCI state to be transmitted in another manner. The present disclosure is not limited in this respect.

[0080] The combination format of the settings of each channel can be referred to in the detailed description of any embodiment of the present disclosure, and will not be described further here.

[0081] In the present disclosure, after a terminal device receives a set of TCI states indicated by a network device, the terminal device can determine that the TCI states for the transmission of a channel or signal are the indicated set of TCI states, thereby ensuring that the TCI states for the transmission of a channel and / or signal determined by the terminal device are consistent with those determined by the network device, ensuring the reliability of transmission, and improving the transmission quality.

[0082] Please refer to Fig. 5, which is a flowchart of another method for determining a transmission configuration indication state provided by an embodiment of the present disclosure. The method is executed by a terminal device. As shown in Fig. 5, the method may include, but is not limited to, the following steps: step 501, receiving indication information, and the indication information is used to indicate a set of TCI states;

[0083] The specific implementation of the above step 501 may refer to the detailed description of any embodiment of the present disclosure, and will not be described further here.

[0084] Step 502, in response to the indication information indicating a set of TCI states and the setting for at least one of the channels being transmission based on multiple sets of TCI states, determines that the TCI state for the at least one channel transmission is the indicated set of TCI states and at least one set of previously set TCI states for the at least one channel.

[0085] In the present disclosure, when the instruction information received by a terminal device indicates only one set of TCI states and the setting of a channel is based on multiple sets of TCI states, the terminal device can determine that the TCI state for the channel transmission is the indicated set of TCI states and at least one set of TCI states for the previous setting of the channel.

[0086] At least one set of previous TCI states for the channel configuration refers to at least one set of TCI states among the TCI states indicated by the one indication information that is closest to the indication information.

[0087] For example, when the PDCCH configuration is based on two sets of TCI states, if the indication information indicates only one set of TCI states, it may be determined that the PDCCH is transmitted based on the newly indicated one set of TCI states and at least one set of TCI states for the previous PDCCH configuration. For example, the indication information at time t1 indicates the first set of TCI states and the second set of TCI states, and the indication signaling at time t2 indicates the third set of TCI states. The terminal device determines that the third set of TCI states is an update to the first set of TCI states, and then the terminal device may set the third set of TCI states and the second set of TCI states as the TCI states for the PDCCH transmission. The time t1 is the time when the terminal device receives one indication information that is closest to the time t2. How the terminal device determines that the third set of TCI states is an update to the first set of TCI states may include determining based on the indication of the indication information or other configuration information, or determining based on a default rule, and is not limited herein.

[0088] Or, if the channel is a PDCCH that transmits based on a second CORESET, and the second CORESET configures at least two sets of TCI states, when the terminal device receives indication information of one set of TCI states, that is, it can determine that the TCI state for the PDCCH is the current indicated set of TCI states, or it can determine that the current indicated set of TCI states and at least one set of TCI states previously configured for the PDCCH. For example, the indication information at time t1 indicates the first set of TCI states and the second set of TCI states, and the indication signaling at time t2 indicates the third set of TCI states. The terminal device can only use the third set of TCI states as the TCI states for PDCCH transmission. Or, the terminal device determines that the third set of TCI states is an update to the first set of TCI states, and then the terminal device uses the third set of TCI states and the second set of TCI states as the TCI states for PDCCH transmission. The time t1 is the time when the terminal device receives the single indication information that is closest to the time t2. How the terminal device determines that the third set of TCI states is an update to the first set of TCI states may include determining based on the indication of the indication information or other configuration information, or determining based on a default rule, and is not limited thereto.

[0089] A single frequency network (SFN) method is configured in the second CORESET, including SFN method 1 and method 2. That is, the same time-frequency domain resource and the same port can be used, and different TCI states transmit PDCCHs in PDCCH candidates associated with the corresponding CORESET.

[0090] Or, the channel is a first PDCCH, and the first PDCCH includes two PDCCH candidates, and two search space (SS) sets associated with the two PDCCH candidates have a link relationship, and each SS set is associated with a respective CORESET. Then, when the terminal device receives indication information of a set of TCI states, it can determine that the TCI state for PDCCH transmission is a current indicated set of TCI states, or a current indicated set of TCI states and at least one set of TCI states for the previous PDCCH configuration. For example, the indication information at time t1 indicates a first set of TCI states and a second set of TCI states, and the terminal device determines that the first set of TCI states is associated with the first PDCCH candidate, the second set of TCI states is associated with the second PDCCH candidate, and the indication signaling at time t2 indicates a third set of TCI states. If the terminal device determines that the third set of TCI states is associated with the first PDCCH candidate, the terminal device can use only the third set of TCI states as the TCI states of PDCCH transmission, i.e., the terminal device receives the PDCCH in the first PDCCH candidate using only the third set of TCI states. Or, the terminal device determines that the third set of TCI states is an update to the first set of TCI states, then the terminal device can use the third set of TCI states and the second set of TCI states as the TCI states of PDCCH transmission, i.e., the terminal device receives the PDCCH in the first PDCCH candidate using the third set of TCI states and simultaneously receives the PDCCH in the second PDCCH candidate using the second set of TCI states. The time t1 is the time when the one indication information closest to the time t2 is received.How the terminal device determines that the first set of TCI states is associated with the first PDCCH candidate and the second set of TCI states is associated with the second PDCCH candidate, and how the terminal device determines that the third set of TCI states is an update to the first set of TCI states may include determining based on an indication of the indication information or other configuration information, or determining based on a default rule, and is not limited thereto herein.

[0091] Optionally, if the terminal device receives only indication information of one set of TCI states, it may determine that the TCI state for the designated channel transmission is only the indicated set of TCI states and at least one set of TCI states previously configured for the designated channel, for example, the designated channel may be a first type of PUSCH or PUCCH that is permitted to be configured.

[0092] In the present disclosure, after the terminal device receives a set of TCI states indicated by the network device, for at least one channel whose configuration type is based on multiple sets of TCI states, the terminal device can determine that the TCI state for the at least one channel transmission is the indicated set of TCI states and the TCI state configured for the at least one channel before the at least one set, thereby keeping the TCI state for the transmission of the channel and / or signal determined by the terminal device consistent with that determined by the network device, ensuring the reliability of transmission, and improving the transmission quality.

[0093] Please refer to Fig. 6, which is a flowchart of another method for determining a transmission configuration indication state provided by an embodiment of the present disclosure. The method is executed by a terminal device. As shown in Fig. 6, the method may include, but is not limited to, the following steps: step 601, receiving indication information, the indication information is used to indicate at least one set of transmission configuration indication (TCI) state;

[0094] The specific implementation of the above step 601 may refer to the detailed description of any embodiment of the present disclosure, and will not be described further here.

[0095] Step 602: A channel and / or signal transmission is based on a set of TCI states, and determining a set of TCI state transmissions for the channel and / or signal transmissions based on a group identifier associated with the channel and / or signal.

[0096] The channel or type of channel includes at least one of a PDCCH, a PDSCH, a configuration-allowed first type PUSCH, a configuration-allowed second type PUSCH, a dynamically allowed PUSCH, and a PUCCH. The signal includes at least one of a CSI-RS and an SRS.

[0097] Optionally, the terminal device may determine a group identifier associated with a channel or a signal in any of the following forms: receiving configuration information, where the configuration information is used to indicate a group identifier associated with the channel and / or the signal; or, where the channel is a first PUCCH and a first PUCCH resource position is determined based on a first control resource set (CORESET) parameter, and determining a group identifier associated with the first CORESET as a group identifier associated with the first PUCCH; or, where the channel is a second PUCCH with a number greater than a threshold and a second PUCCH resource position is determined based on a total number of control channel elements (CCEs) of the second CORESET and a CCE start position of a PDCCH candidate, and determining a group identifier associated with the second CORESET as a group identifier associated with the second PUCCH; or, where the channel is a PDCCH and determining a group identifier or a control resource set pool index CORESET Pool Index of the CORESET associated with the PDCCH as a group identifier associated with the PDCCH.

[0098] Optionally, the indication information may include a group identifier (identity document, ID) or index associated with each set of TCI states, so that after the terminal device receives the indication information, it can determine a set of TCI states associated with a group identifier associated with a channel or signal in the indication information as a TCI state for the transmission of the channel and / or signal.

[0099] The group identifier includes at least one of a control resource set pool index CORESET Pool Index, a control resource set (CORESET) group identifier, a physical uplink control channel (PUCCH) group identifier, a physical uplink shared channel (PUSCH) group identifier, and a physical downlink shared channel (PDSCH) group identifier.

[0100] That is, the first indication information may include a CORESET Pool Index, a CORESET group ID, a PUCCH group ID, a PUSCH group ID, or a PDSCH group ID associated with the TCI state of each set.

[0101] In the present disclosure, when a terminal device receives at least one set of TCI states, for only a channel and / or signal for transmission based on one set of TCI states, it can determine a TCI state for which the associated group identifier in the indication information is the same as the group identifier of the channel or signal as one set of TCI states for the transmission of the channel or signal, thereby maintaining consistency between the TCI state for the transmission of the channel and / or signal determined by the terminal device and that determined by the network device, ensuring the reliability of transmission and improving the transmission quality.

[0102] Please refer to Fig. 7, which is a flowchart of a method for determining a transmission configuration indication state provided by an embodiment of the present disclosure. The method is executed by a network device. As shown in Fig. 7, the method may include, but is not limited to, the following steps: step 701, sending indication information to a terminal device, where the indication information is used to indicate at least one set of transmission configuration indication (TCI) state.

[0103] A set of TCI states refers to one TCI state or one pair of TCI states, for example, a set of TCI states may be one joint TCI state (also referred to as DL or jointTCIstate), or one independent downlink (DL) TCI state, or one independent uplink (UL) TCI state; or one independent DL TCI state and one independent UL TCI state, etc., and the present disclosure is not limited in this respect.

[0104] Optionally, the indication may be a medium access control layer (MAC) control element (CE), i.e., a set of TCI state associated with a codepoint activated via the MAC CE.

[0105] Optionally, the indication information may further include a MAC CE and a DCI, that is, firstly, directly activate at least one set of TCI states respectively associated with multiple codepoints via the MAC CE, and the DCI indicates one of the codepoints, where the codepoint is associated with at least one set of TCI states.

[0106] Step 702: determining a TCI state for transmission of the channel and / or signal based on at least one of a setting for the channel and / or signal in the terminal device, a TCI state number indicated in the indication information, and a type of the channel.

[0107] The channel or type of channel includes at least one of PDCCH, PDSCH, dynamically granted PUSCH, configured grant second type (type 2) PUSCH, configured grant second type PUSCH repeated transmission, configured grant first type PUSCH repeated transmission, configured grant first type PUSCH, and PUCCH. The dynamically granted PUSCH may also be called dynamic grant PUSCH, the configured granted second type PUSCH may be called type 2 configured grant PUSCH or configured grant type 2 PUSCH, and the configured granted first type PUSCH may be called type 1 configured grant PUSCH or configured grant type 1 PUSCH, etc.

[0108] The signal includes at least one of a channel state information reference signal (CSI RS) and a sounding reference signal (SRS).

[0109] Optionally, each of the above signals may be any type of signal including periodic, semi-persistent, and aperiodic.

[0110] Optionally, one set of TCI states among the at least one set of TCI states indicated by the indication information includes one joint TCI state (or "DLorjointTCIstate"), i.e., the joint TCI state can be used for uplink and downlink channels / signals simultaneously.

[0111] Alternatively, one set of TCI states among the at least one set of TCI states indicated by the indication information includes an independent uplink (UL) TCI state and / or a downlink (DL) TCI state.

[0112] In the present disclosure, after instructing a terminal device of at least one set of TCI states, the network device can determine a TCI state for channel transmission based on a type of channel in the terminal device, or can determine a TCI state for channel and / or signal transmission based on settings for channels and / or signals, or can determine a TCI state for channel and / or signal transmission based on specifically instructing several TCI states in the instruction information, or can determine a TCI state for channel and / or signal transmission based on settings for channels and / or signals and specifically instructing several TCI states in the instruction information, and the present disclosure is not limited in this respect.

[0113] The configuration for a channel and / or signal in a terminal device can be used to indicate whether the channel or signal is transmitted based on one set of TCI states or based on multiple sets of TCI states.

[0114] Optionally, the present disclosure may determine the configuration based on the number of transmission reception points (TRPs) configured in a channel and / or signal, for example, if the CSI RS and SRS each configure a single (S) TRP, the configuration may be determined to be transmission based on one set of TCI states, or if the PDCCH channel configures multiple (M) TRPs, the PDCCH configuration may be transmission based on multiple sets of TCI states.

[0115] Optionally, each of the above signals may be S-TRP-based transmission, i.e., each signal is configured to transmit based on one set of TCI states.

[0116] Optionally, the channel transmission may be a transmission based on at least two sets of TCI states and / or a repeated transmission.

[0117] Optionally, the number of TCI states indicated by the indication indicates whether one set of TCI states is indicated in the indication or whether at least two sets of TCI states are indicated.

[0118] The type of channel refers to whether the channel is any one or any of several channels listed above.

[0119] Optionally, for the PDCCH, PDSCH, PUCCH and PUSCH, the configuration for at least one channel may be transmission based on one set of TCI states, and the configuration for at least one channel may be transmission based on multiple sets of TCI states.

[0120] For example, the combinations of settings for each channel may be as follows: S-TRP PDCCH and M-TRP PDSCH; S-TRP PDSCH and M-TRP PDCCH; S-TRP PDCCH and M-TRP PUSCH; S-TRP PUSCH and M-TRP PDCCH; S-TRP PUSCH and M-TRP PDSCH; S-TRP PDSCH and M-TRP PUSCH; S-TRP PDCCH, M-TRP PDSCH and M-TRP PUSCH; S-TRP PDCCH, M-TRP PDSCH and M-TRP PUCCH; S-TRP PDCCH, S-TRP PUCCH, M-TRP PDSCH and M-TRP PUSCH; S-TRP PDCCH, M-TRP PUCCH, M-TRP PDSCH and M-TRP PUSCH; S-TRP PDCCH, M-TRP PUCCH, M-TRP PDSCH and M-TRP PUSCH, etc.

[0121] The M-TRP PDCCH may include setting a search space (SS) set having two link relationships, where PDCCH candidates having the same PDCCH candidate number in two SS sets are used to transmit one PDCCH, and each SS set is associated with each CORESET. Alternatively, the M-TRP PDCCH may be a method including setting a single frequency network (SFN), that is, one CORESET sets two TCI states, and any one PDCCH candidate in the CORESET is associated with two TCI states.

[0122] M-TRP PDSCH refers to a repetition mode repetitionscheme, a repetition number repetitionnumber, or two code division multiplexing (CDM) groups configured for the PDSCH, where repetitionscheme includes at least one of frequency division multiplexing (FDM) scheme A, FDM scheme B, and time division multiplexing (TDM) scheme A.

[0123] The M-TRP PUSCH indicates that the PUSCH is associated with at least one of the following: two sounding reference signal resource indicators (SRS resource indicators), two layer fields, two PUSCH precoder fields, and two SRS resource sets.

[0124] The M-TRP PUCCH indicates that the PUCCH is associated with at least one of two pieces of spatial relationship information (spatial-relation-info), two TCI states (including an independent UL TCI state or a joint TCI state), and two power control parameter sets.

[0125] In the present disclosure, after instructing a terminal device of at least one set of TCI states, the network device can determine a TCI state for channel and / or signal transmission based on at least one of information such as channel and / or signal settings in the terminal device, the number of TCI states indicated in the instruction information, etc. In this way, the TCI state for channel and / or signal transmission determined by the terminal device is consistent with that determined by the network device, ensuring transmission reliability and improving transmission quality.

[0126] Please refer to Fig. 8, which is a flowchart of another method for determining a transmission configuration indication state provided by an embodiment of the present disclosure. The method is executed by a network device. As shown in Fig. 8, the method may include, but is not limited to, the following steps: step 801, sending indication information to a terminal device, where the indication information is used to indicate at least one set of transmission configuration indication (TCI) states;

[0127] The specific implementation process of the above step 801 may refer to the detailed description of any embodiment of the present disclosure, and will not be described further here.

[0128] Step 802: In response to the indication information indicating at least two sets of TCI states and the setting for the channel being transmission and / or repeated transmission based on the at least two sets of TCI states, it is determined that the TCI state for channel transmission is a TCI state included in the at least two sets of TCI states.

[0129] Optionally, the channel for transmission based on the at least two sets of TCI states may be any one of: PDCCH, PDSCH, PUSCH of dynamic grant, PUSCH of second type of configured grant, repeated transmission of PUSCH of second type of configured grant, repeated transmission of PUSCH of first type of configured grant, PUSCH of configured grant type1, and PUCCH. The PUSCH of configured grant second type, repeated transmission of PUSCH of configured grant second type, and repeated transmission of PUSCH of configured grant first type need to indicate DCI. The PUSCH of configured grant first type does not need to indicate DCI.

[0130] The combination format of the settings of each channel can be referred to in the detailed description of any embodiment of the present disclosure, and will not be described further here.

[0131] In the present disclosure, after the network device indicates at least two sets of TCI states to the terminal device, for a channel transmission of transmission based on the at least two sets of TCI states and / or repeated transmission, the network device can determine that the TCI state for the channel transmission is a TCI state included in the at least two sets of TCI states, thereby maintaining consistency between the TCI state for channel and / or signal transmission determined by the terminal device and that determined by the network device, ensuring transmission reliability and improving transmission quality.

[0132] Please refer to Fig. 9, which is a flowchart of another method for determining a transmission configuration indication state provided by an embodiment of the present disclosure. The method is executed by a network device. As shown in Fig. 9, the method may include, but is not limited to, the following steps: step 901, sending indication information to a terminal device, where the indication information is used to indicate a set of transmission configuration indication (TCI) states;

[0133] The specific implementation of the above step 901 may refer to the detailed description of any embodiment of the present disclosure, and will not be described further here.

[0134] Step 902, in response to a set of TCI states being indicated in the indication information, determines that the TCI states for transmission of the channel and / or signal are the indicated set of TCI states.

[0135] In the present disclosure, when the indication information indicates a set of TCI states, regardless of transmission based on some TCI states of channel or signal settings, all terminal devices at this time can decide to transmit based on the newly indicated set of TCI states.

[0136] That is, if the configuration for a channel is to transmit multiple sets of TCI states, but the current indication information indicates only one set of TCI states, the channel can be temporarily reverted to transmission based on one set of TCI states, i.e., transmission of the S-TRP.

[0137] Optionally, if the network device instructs only the terminal device to transmit one set of TCI states, it may only determine that the TCI state for partial channel transmission is the instructed set of TCI states.

[0138] For example, for a PDSCH, a dynamically allowed PUSCH, a configured second type PUSCH, or repeated transmission of a configured second type PUSCH, or repeated transmission of a configured first type PUSCH, these channels are configured as transmissions based on multiple sets of TCI states, and if the network device indicates only indication information of one set of TCI states, it can be determined that the TCI state for these channel transmissions is the indicated one set of TCI states.

[0139] Optionally, for a PDCCH transmitted based on a second CORESET, and the second CORESET configures at least two sets of TCI states, and the current indication information indicates only one set of TCI states, the terminal device may also determine that the TCI state for the PDCCH transmission is the one set of TCI states indicated by the indication information, i.e., the PDCCH transmission temporarily reverts to transmission based on one set of TCI states, i.e., transmission of an S-TRP.

[0140] A single frequency network (SFN) method is configured in the second CORESET, including SFN method 1 and method 2. That is, the same time-frequency domain resource and the same port can be used, and different TCI states transmit PDCCHs in PDCCH candidates associated with the corresponding CORESET.

[0141] Optionally, for a first PDCCH, if the first PDCCH includes two candidate PDCCHs (i.e., PDCCH candidates), and two search space sets (SS sets) associated with the two PDCCH candidates have a link relationship, and the SS sets are associated with respective CORESETs, and the current indication information indicates only one set of TCI states, the network device can also determine that the TCI state for the first PDCCH transmission is the set of TCI states indicated by the indication information. That is, the terminal only needs to receive the PDCCH in a PDCCH candidate associated with the set of TCI states indicated by the indication information based on the set of TCI states. There is no need to monitor a PDCCH candidate that does not indicate another TCI state.

[0142] That is, when a network device indicates a set of TCI states, it can determine that the transmission of a certain partial channel is based on this set of TCI states. In other words, when the settings for the partial channel are transmission based on multiple sets of TCI states, at this time, it is necessary to temporarily switch to transmission based on one set of TCI states, i.e., roll back to S-TRP.

[0143] Optionally, the network device may determine the TCI state for the remaining channel transmission based on the configuration of the remaining channels other than the above partial channels, for example, when the channel or signal is configured based on one set of TCI states, the network device may determine transmission based on the designated one set of TCI states, and when the channel is configured based on multiple sets of TCI states, the network device may set the TCI state to be transmitted in another manner, although the present disclosure is not limited in this respect.

[0144] The combination format of each channel setting may be referred to in the detailed description of any embodiment of the present disclosure, and will not be described further here.

[0145] In the present disclosure, after the network device instructs a set of TCI states to the terminal device, i.e., the network device can determine that the TCI states for the transmission of channels or signals are the instructed set of TCI states, thereby keeping the TCI states for the transmission of channels and / or signals determined by the terminal device consistent with those determined by the network device, ensuring the reliability of transmission, and improving the transmission quality.

[0146] Please refer to Fig. 10, which is a flowchart of a method for determining another transmission configuration indication state provided by an embodiment of the present disclosure. The method is executed by a network device. As shown in Fig. 10, the method may include, but is not limited to, the following steps: step 1001, sending indication information to a terminal device, where the indication information is used to indicate a set of TCI state;

[0147] The specific implementation of the above step 1001 may refer to the detailed description of any embodiment of the present disclosure, and will not be described further here.

[0148] Step 1002: In response to the indication information indicating a set of TCI states and the setting for at least one of the channels being transmission based on multiple sets of TCI states, it is determined that the TCI state for the at least one channel transmission is the indicated set of TCI states and at least one set of previously set TCI states for the at least one channel.

[0149] In the present disclosure, when the instruction information transmitted by the network device indicates only one set of TCI states, and the configuration of a specific channel or specific channels in the terminal device is based on two sets of TCI states, the network device can determine that the TCI state for the transmission of the one or more channels is the indicated set of TCI states and at least one set of previously configured TCI states for the one or more channels.

[0150] At least one set of TCI states previously set for a channel refers to at least one set of TCI states indicated by a single indication information that is closest to the indication information.

[0151] For example, if the PDCCH configuration is based on two sets of TCI states and the indication information indicates only one set of TCI states, the PDCCH may determine to transmit based on the newly indicated one set of TCI states and at least one set of TCI states previously configured for the PDCCH. For example, the indication information at time t1 indicates the first set of TCI states and the second set of TCI states, and the indication signaling at time t2 indicates the third set of TCI states. The network device may determine that the third set of TCI states is an update to the first set of TCI states, and then the network device may set the third set of TCI states and the second set of TCI states as the TCI states of the PDCCH transmission. Wherein, time t1 is the time when the network device transmits one indication information that is closest to time t2. How the network device determines that the third set of TCI states is an update to the first set of TCI states may be transmitted to the terminal device via the indication of the indication information or other configuration information, or may be determined based on a default rule, and is not limited herein.

[0152] Or, if the channel is a PDCCH transmitting based on a second CORESET, and the second CORESET configures at least two sets of TCI states, when the terminal device receives indication information of a set of TCI states, it may determine that the TCI state for PDCCH transmission is the current indicated set of TCI states, or the current indicated set of TCI states and at least one set of TCI states previously configured for the PDCCH. For example, the indication information at time t1 indicates the first set of TCI states and the second set of TCI states, and the indication signaling at time t2 indicates the third set of TCI states. The network device may take only the third set of TCI states as the TCI states for PDCCH transmission. Or, the network device may determine that the third set of TCI states is an update to the first set of TCI states, and then the network device may take the third set of TCI states and the second set of TCI states as the TCI states for PDCCH transmission. Wherein, time t1 is the time of sending one indication information that is closest to time t2. How the network device determines that the third set of TCI states is an update to the first set of TCI states may include, but is not limited to, sending the indication information to the terminal device via an indication or other configuration information, or determining based on a default rule.

[0153] A single frequency network (SFN) method is configured in the second CORESET, including SFN method 1 and method 2. That is, the same time-frequency domain resource and the same port can be used, and different TCI states transmit PDCCHs in PDCCH candidates associated with the corresponding CORESET.

[0154] Or, the channel is a first PDCCH, and the first PDCCH includes two PDCCH candidates, and two search space (SS) sets associated with the two PDCCH candidates have a link relationship, and each SS set is associated with a respective CORESET. Then, when the network device indicates a set of TCI state indication information, that is, the TCI state for the PDCCH can be determined to be a current indicated set of TCI states, or the current indicated set of TCI states and at least one set of TCI states previously set for the PDCCH. For example, the indication information at time t1 indicates a first set of TCI states and a second set of TCI states, and the network device determines that the first set of TCI states is associated with the first PDCCH candidate, the second set of TCI states is associated with the second PDCCH candidate, and the indication signaling at time t2 indicates a third set of TCI states. If the network device determines that the third set of TCI states is associated with the first PDCCH candidate, the network device can use only the third set of TCI states as the TCI states of the PDCCH transmission, i.e., the network device transmits the PDCCH in the first PDCCH candidate using only the third set of TCI states. Or, the network device determines that the third set of TCI states is an update to the first set of TCI states, then the network device can use the third set of TCI states and the second set of TCI states as the TCI states of the PDCCH transmission, i.e., the network device transmits the PDCCH in the first PDCCH candidate using the third set of TCI states, and simultaneously transmits the PDCCH in the second PDCCH candidate using the second set of TCI states.Wherein, time t1 is the time of transmitting one indication information closest to time t2. How the network device determines that the first set of TCI states is associated with the first PDCCH candidate and the second set of TCI states is associated with the second PDCCH candidate, and how it determines that the third set of TCI states is an update to the first set of TCI states may include sending the indication of the indication information to the terminal device via an indication or other configuration information, or determining based on a default rule, and is not limited herein.

[0155] Optionally, if the network device indicates only one set of TCI state indication information, it may only determine that the TCI state for the designated channel transmission is the indicated one set of TCI states and at least one set of previously configured TCI states for the designated channel. For example, the designated channel may be a first type of PUSCH or PUCCH that is permitted to be configured.

[0156] In the present disclosure, after the network device indicates one set of TCI states, for at least one channel whose type is set to the terminal device based on two sets of TCI states, the network device can determine that the TCI state for the at least one channel transmission is the indicated set of TCI states and the TCI state set for the at least one channel before the at least one set, thereby keeping the TCI state for the transmission of the channel and / or signal determined by the terminal device consistent with that determined by the network device, ensuring the reliability of transmission, and improving the transmission quality.

[0157] Please refer to Fig. 11, which is a flowchart of another method for determining a transmission configuration indication state provided by an embodiment of the present disclosure. The method is executed by a network device. As shown in Fig. 11, the method may include, but is not limited to, the following steps: step 1101, sending indication information to a terminal device, where the indication information is used to indicate at least one set of transmission configuration indication (TCI) states;

[0158] The specific implementation of the above step 1101 may refer to the detailed description of any embodiment of the present disclosure, and will not be described further here.

[0159] Step 1102, where a channel and / or signal transmission is based on a set of TCI states, determines a set of TCI state transmissions for the channel and / or signal based on a group identifier associated with the channel and / or signal.

[0160] The channel or type of channel includes at least one of a PDCCH, a PDSCH, a configuration-permitted type 1 PUSCH, a configuration-permitted second type PUSCH, a dynamically permitted PUSCH, and a PUCCH. The signal includes at least one of a CSI-RS and an SRS.

[0161] Optionally, the terminal device may determine a group identifier associated with a channel or signal in any of the following forms: receiving configuration information, where the configuration information is used to indicate a group identifier associated with the channel and / or signal; or, the channel is a first PUCCH and a first PUCCH resource position is determined based on a first control resource set (CORESET) parameter, and determining a group identifier associated with the first CORESET as a group identifier associated with the first PUCCH; or, the channel is a second PUCCH with a number greater than a threshold, and a second PUCCH resource position is determined based on a total number of control channel elements (CCEs) of the second CORESET and a CCE start position of a PDCCH candidate, and determining a group identifier or CORESETPoolIndex associated with the second CORESET as a group identifier associated with the second PUCCH; or, the channel is a PDCCH and determining a group identifier of the CORESET associated with the PDCCH as a group identifier associated with the PDCCH.

[0162] Optionally, the indication information may include a group identifier (identity document, ID) or index associated with each set of TCI states, so that after the terminal device receives the indication information, it can determine a set of TCI states associated with a group identifier associated with a channel or signal in the indication information as a TCI state for the transmission of the channel and / or signal.

[0163] The group identifier includes at least one of a control resource set pool index CORESET Pool Index, a control resource set (CORESET) group identifier, a physical uplink control channel (PUCCH) group identifier, a physical uplink shared channel (PUSCH) group identifier, and a physical downlink shared channel (PDSCH) group identifier.

[0164] That is, the first indication information may include a CORESET Pool Index, a CORESET group ID, a PUCCH group ID, a PUSCH group ID, or a PDSCH group ID associated with the TCI state of each set.

[0165] In the present disclosure, when a network device indicates at least one set of TCI states, for only a channel and / or signal of transmission based on one set of TCI states, a TCI state having the same associated group identifier in the indication information as the group identifier of the channel or signal can be determined as one set of TCI states for the transmission of the channel or signal, thereby maintaining consistency between the TCI state for the transmission of the channel and / or signal determined by the terminal device and that determined by the network device, ensuring the reliability of transmission, and improving the transmission quality.

[0166] 12, a schematic block diagram of a communication device 1200 provided by an embodiment of the present disclosure is shown. The communication device 1200 shown in FIG. 12 can include a transceiver module 1201. The transceiver module 1201 can include a transmitting module and / or a receiving module, where the transmitting module is used to realize a transmitting function, the receiving module is used to realize a receiving function, and the transceiver module 1201 can realize a transmitting function and / or a receiving function.

[0167] It can be understood that the communication device 1200 may be a terminal device, may be a device in a terminal device, or may be a device that can be used in conjunction with a terminal device.

[0168] The communication apparatus 1200 is located on the terminal device side, in which: a transceiver module 1201 is used for receiving indication information, which is used for indicating at least one set of transmission configuration indication (TCI) states; and a processing module 1202 is used for determining a TCI state for transmission of the channel and / or signal based on at least one of a setting for the channel and / or signal, a number of TCI states indicated in the indication information, and a type of the channel.

[0169] Optionally, a set of TCI states of the at least one set of TCI states includes a joint TCI state; or One set of TCI states of the at least one set of TCI states includes an independent uplink (UL) TCI state and / or a DL TCI state.

[0170] Optionally, the channels include at least one of a physical downlink control channel (PDCCH), a physical downlink shared channel (PDSCH), a dynamically allowed physical uplink shared channel (PUSCH), a configured allowed second type PUSCH, configured allowed repeated transmission of a second type PUSCH, configured allowed repeated transmission of a first type PUSCH, configured allowed first type PUSCH, and a physical uplink control channel (PUCCH), and the signals include at least one of a channel state information reference signal (CSI RS) and a sounding reference signal (SRS).

[0171] Optionally, the configuration for the channel is transmission and / or repeated transmission based on at least two sets of TCI states.

[0172] Optionally, the processing module 1202 is specifically used for determining, in response to at least two sets of TCI states being indicated in the indication information, that the TCI state for the channel transmission is a TCI state included in the at least two sets of TCI states.

[0173] Optionally, the processing module 1202 is specifically used to determine, in response to a set of TCI states being indicated in the instruction information, that the TCI state for transmission of the channel and / or signal is the indicated set of TCI states, or, in response to a set of TCI states being indicated in the instruction information and the channel setting of at least one of the channels being based on multiple sets of TCI states, to determine that the TCI state for transmission of the at least one channel is the indicated set of TCI states and at least one previously set TCI state for the at least one channel.

[0174] Optionally, the processing module 1202 is specifically used for determining, in response to the channel being a PDSCH, a dynamically allowed PUSCH, or a configured-allowed second type PUSCH, configured-allowed repeated transmission of a second type PUSCH, or configured-allowed repeated transmission of a first type PUSCH, that a TCI state for the channel transmission is the indicated set of TCI states.

[0175] Optionally, the processing module 1202 is specifically used for determining, in response to the at least one channel being a first type of PUSCH or PUCCH that is allowed to be configured, that a TCI state associated with the PUSCH transmission is the indicated set of TCI states and at least one set of previously configured TCI states for the PUSCH or PUCCH.

[0176] Optionally, the processing module 1202 is specifically used for determining transmission of a set of TCI states for a channel and / or signal transmission based on a group identifier associated with the channel and / or signal, when the channel and / or signal transmission is a transmission based on a set of TCI states, the channel or channel type including at least one of a PDCCH, a PDSCH, a configured allowed first type PUSCH, a configured allowed second type PUSCH, a dynamically allowed PUSCH, and a PUCCH, and the signal including at least one of a channel state information reference signal (CSI-RS), a sounding reference signal (SRS).

[0177] Optionally, the transceiver module 1201 is further used for receiving configuration information, the configuration information being used for indicating a group identifier associated with the channel and / or signal, or the processing module 1202 is further used for, if the channel is a first PUCCH and the first PUCCH resource location is determined based on a first control resource set (CORESET) parameter, determining a group identifier associated with the first CORESET as a group identifier associated with the first PUCCH, or the processing module 1202 is further used for, if the channel is a second PUCCH with a number greater than a threshold and the second PUCCH resource location is determined based on a total number of control channel elements (CCEs) of a second CORESET and a PDCCH parameter. If determined based on the CCE start position of the candidate, the group identifier associated with the second CORESET is used to determine the group identifier associated with the second PUCCH, or, if the channel is a PDCCH, the processing module 1202 is further used to determine the group identifier or control resource pool index of the CORESET associated with the PDCCH as the group identifier associated with the PDCCH.

[0178] Optionally, the indication includes a group identifier associated with each set of TCI states.

[0179] Optionally, the group identifier includes at least one of a control resource set pool index, a CORESET group identifier, a PUCCH group identifier, a PUSCH group identifier, and a PDSCH group identifier.

[0180] Optionally, the channel is a PDCCH transmitting based on a second CORESET, in which at least two sets of TCI states are set, or a first PDCCH, in which the first PDCCH includes two candidate PDCCHs and two search space sets (SS sets) associated with the two candidate PDCCHs have a link relationship, and the SS set includes the first PDCCH associated with each CORESET.

[0181] Optionally, the indication information is a media access control layer control element (MAC CE), and any one of downlink control information (DCI) and a MAC CE.

[0182] In the present disclosure, after receiving at least one set of TCI states instructed by a network device, the terminal device can determine a TCI state for the transmission of a channel and / or signal based on the settings for the channel and / or signal, such as at least one of information such as the number of TCI states instructed in the instruction information, thereby maintaining consistency between the TCI state for the transmission of the channel and / or signal determined by the terminal device and the TCI state determined by the network device, ensuring the reliability of transmission, and improving the transmission quality.

[0183] It can be understood that the communications device 1200 can be a network device, a device in a network device, or a device that can be used in conjunction with a network device.

[0184] The communication apparatus 1200 is located on the network device side, and the transceiver module 1201 is used to send indication information to a terminal device, the indication information is used to indicate at least one set of transmission configuration indication (TCI) states, and the processing module 1202 is used to determine, based on the settings for channels and / or signals in the terminal device, the number of TCI states indicated in the indication information and at least one of the types of channels, TCI states for transmission of the channels and / or signals.

[0185] Optionally, one set of TCI states of the at least one set of TCI states includes one joint TCI state, or one set of TCI states of the at least one set of TCI states includes an independent uplink (UL) TCI state and / or DL ​​TCI state.

[0186] Optionally, the channels include at least one of a physical downlink control channel (PDCCH), a physical downlink shared channel (PDSCH), a dynamically allowed physical uplink shared channel (PUSCH), a configured allowed second type PUSCH, configured allowed repeated transmission of a second type PUSCH, configured allowed repeated transmission of a first type PUSCH, configured allowed first type PUSCH, and a physical uplink control channel (PUCCH), and the signals include at least one of a channel state information reference signal (CSI RS) and a sounding reference signal (SRS).

[0187] Optionally, the configuration for the channel is transmission and / or repeated transmission based on at least two sets of TCI states.

[0188] Optionally, the processing module 1202 is specifically used for determining, in response to at least two sets of TCI states being indicated in the indication information, that the TCI state for the channel transmission is a TCI state included in the at least two sets of TCI states.

[0189] Optionally, the processing module 1202 is specifically used to determine, in response to a set of TCI states being indicated in the instruction information, that the TCI state for transmission of the channel and / or signal is the indicated set of TCI states, or, in response to a set of TCI states being indicated in the instruction information and the setting for at least one of the channels is based on multiple sets of TCI states, to determine that the TCI state for transmission of the at least one channel is the indicated set of TCI states and at least one previously set TCI state for the at least one channel.

[0190] Optionally, the processing module 1202 is specifically used for determining, in response to the channel being a PDSCH, a dynamically allowed PUSCH, or a configured-allowed second type PUSCH, configured-allowed repeated transmission of a second type PUSCH, or configured-allowed repeated transmission of a first type PUSCH, that a TCI state for the channel transmission is the indicated set of TCI states.

[0191] Optionally, the processing module 1202 is specifically used for determining, in response to the at least one channel being a first type of PUSCH or PUCCH that is allowed to be configured, that a TCI state for the PUSCH transmission is the indicated set of TCI states and at least one set of TCI states previously configured for the PUSCH or PUCCH.

[0192] Optionally, the processing module 1202 is specifically used for determining transmission of a set of TCI states for a channel and / or signal transmission based on a group identifier associated with the channel and / or signal, when the channel and / or signal transmission is a transmission based on a set of TCI states, the channel or channel type including at least one of a PDCCH, a PDSCH, a configured allowed first type PUSCH, a configured allowed second type PUSCH, a dynamically allowed PUSCH, and a PUCCH, and the signal including at least one of a channel state information reference signal (CSI-RS), a sounding reference signal (SRS).

[0193] Optionally, the transceiver module 1201 is further used to receive configuration information, the configuration information being used to indicate a group identifier associated with the channel and / or signal; or the processing module 1202 is further used to determine, when the channel is a first PUCCH and the first PUCCH resource location is determined based on a first control resource set (CORESET) parameter, a group identifier associated with the first CORESET as a group identifier associated with the first PUCCH; or the processing module 1202 is further used to determine, when the channel is a second PUCCH with a number greater than a threshold, a second PUCCH resource location is determined based on a total number of control channel elements (CCEs) of a second CORESET and a PDCCH parameter. When the CCE start position of the candidate is determined based on the CCE start position, the group identifier associated with the second CORESET is used to determine a group identifier associated with a second PUCCH, and the processing module 1202 is further used when the channel is a PDCCH, to determine a group identifier or a control resource pool index of a CORESET associated with the PDCCH as a group identifier associated with the PDCCH.

[0194] Optionally, the indication includes a group identifier associated with each set of TCI states.

[0195] Optionally, the group identifier includes at least one of a control resource set pool index, a CORESET group identifier, a PUCCH group identifier, a PUSCH group identifier, and a PDSCH group identifier.

[0196] Optionally, the channel and / or signal is a PDCCH transmitting based on a second CORESET, in which at least two sets of TCI states are set, or a first PDCCH, in which the first PDCCH includes two candidate PDCCHs and two search space sets (SS sets) associated with the two candidate PDCCHs have a link relationship, and the SS set includes the first PDCCH associated with each CORESET.

[0197] Optionally, the indication information is a media access control layer control element (MAC CE), and any one of downlink control information (DCI) and a MAC CE.

[0198] In the present disclosure, after instructing a terminal device of at least one set of TCI states, the network device can determine a TCI state for channel and / or signal transmission based on at least one of information such as a channel and / or signal setting in the terminal device, the number of TCI states indicated in the instruction information, etc. In this way, the TCI state for channel and / or signal transmission determined by the terminal device is kept consistent with that determined by the network device, ensuring transmission reliability and improving transmission quality.

[0199] 13, which is a schematic diagram of another communication device 1300 provided by an embodiment of the present disclosure. The communication device 1300 may be a network device, an auxiliary communication device, or a terminal device, the network device may be a chip, chip system, or processor, etc., that supports the above-mentioned method to be implemented, the auxiliary communication device may be a chip, chip system, or processor, etc., that supports the above-mentioned method to be implemented, and the terminal device may be a chip, chip system, or processor, etc., that supports the above-mentioned method to be implemented. The device can be used to implement the method described in the above-mentioned method embodiment, and for details, reference can be made to the description of the above-mentioned method embodiment.

[0200] The communication device 1300 may include one or more processors 1301. The processor 1301 may be a general-purpose processor or a dedicated processor, etc. For example, it may be a baseband processor or a central processor. The baseband processor may be used to process communication protocols and communication data, and the central processor may be used to control the communication device (e.g., a base station, a baseband chip, a terminal device, a terminal device chip, a DU or CU, etc.), execute a computer program, and process data of the computer program.

[0201] Optionally, the communications device 1300 may include one or more memories 1302 having computer programs 1304 stored therein for executing the computer programs 1304 to cause the communications device 1300 to perform the methods described in the method embodiments above. Optionally, data may be stored in the memory 1302. The communications device 1300 and the memory 1302 may be provided separately or may be integrated together.

[0202] Optionally, the communication device 1300 may further include a transceiver 1305 and an antenna 1306. The transceiver 1305 may be referred to as a transceiver unit, transceiver, or transceiver circuit, etc., and is used to realize a transceiver function. The transceiver may include a receiver and a transmitter, and the transceiver 1305 may be referred to as a receiving device or receiving circuit, etc., and is used to realize a receiving function, and the transmitter may be referred to as a transmitting device or transmitting circuit, etc., and is used to realize a transmitting function.

[0203] Optionally, the communication device 1300 may further include one or more interface circuits 1307. The interface circuit 1307 is used to receive and transmit code instructions to the processor 1301. The processor 1301 executes the code instructions, thereby causing the communication device 1300 to perform the methods described in the method embodiments above.

[0204] For example, the communication apparatus 1300 is a terminal device, and the transceiver 1305 can execute step 201 of Figure 2, etc. The processor 1301 is used to execute step 202 of Figure 2, step 202 of Figure 3, etc.

[0205] Alternatively, the communication apparatus 1300 is a network device, and the transceiver 1305 is used to execute step 701 in Fig. 7, step 801 in Fig. 8, step 901 in Fig. 9, etc. The processor 1301 is used to execute step 702 in Fig. 7, step 802 in Fig. 8, etc.

[0206] In one implementation, the processor 1301 may include a transceiver for implementing the receiving and transmitting functions. For example, the transceiver may be a transceiver circuit, or an interface, or an interface circuit. The transceiver circuit, interface, or interface circuit for implementing the receiving and transmitting functions may be separate or integrated together. The transceiver circuit, interface, or interface circuit may be used to read and write code / data, or the transceiver circuit, interface, or interface circuit may be used to transmit or convey signals.

[0207] In one implementation, the processor 1301 may store a computer program 113, which, when executed in the processor 1301, enables the communication device 1300 to execute the methods described in the above method embodiments. The computer program 113 may be embedded in the processor 1301, in which case the processor 1301 may be implemented in hardware.

[0208] In one implementation, the communication device 1300 may include circuitry that can implement the functions of transmitting or receiving or communicating in the method embodiments described above. The processor and transceiver described in this disclosure may be integrated into an integrated circuit (IC), an analog IC, a radio frequency integrated circuit (RFIC), a mixed signal IC, an application specific integrated circuit (ASIC), a printed circuit board (PCB), an electronic device, etc. The processor and transceiver may be fabricated using a variety of IC process technologies, such as complementary metal oxide semiconductor (CMOS), n-type metal oxide semiconductor (nMOS), p-type metal oxide semiconductor (PMOS), bipolar junction transistor (BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (Gas), etc.

[0209] The communication device in the above embodiment description may be a network device or a terminal device or an auxiliary communication device, but the scope of the communication device described in the present disclosure is not limited thereto, and the structure of the communication device may not be limited by Fig. 13. The communication device may be an independent device or a part of a larger device. For example, the communication device may be as follows: (1) An independent integrated circuit IC or chip, or a chip system or subsystem; (2) A set having one or more integrated circuits, the set of integrated circuits optionally including a storage component for storing data, computer programs; (3) ASICs, such as modems, (4) A module that can be embedded into other devices; (5) Receivers, terminal devices, intelligent terminal devices, cellular phones, wireless devices, handhelds, mobile units, vehicle-mounted devices, base stations, cloud devices, artificial intelligence devices, etc. (6)Others.

[0210] When the communication device is a chip or a chip system, reference may be made to the schematic configuration diagram of the chip shown in Fig. 14. The chip shown in Fig. 14 includes a processor 1401 and an interface 1403. Wherein, the number of processors 1401 may be one or more, and the number of interfaces 1403 may be more than one.

[0211] Regarding the situation for the chip to realize the functions of the terminal device of the embodiment of the present disclosure: The interface 1403 is used to execute steps such as step 201 in FIG.

[0212] Regarding the situation where the chip realizes the network device of the embodiment of the present disclosure: The interface 1403 is used to execute step 701 in FIG. 7, step 801 in FIG. 8, step 901 in FIG.

[0213] Optionally, the chip further includes a memory 1402, which is used to store necessary computer programs and data.

[0214] As can be understood by those skilled in the art, the various illustrative logical blocks and steps enumerated in the embodiments of the present disclosure can be realized by electronic hardware, computer software, or a combination of both. Whether such functions are realized by hardware or software depends on the specific application and the design requirements of the entire system. Those skilled in the art can realize the functions using various methods for each specific application, but such realization should not be understood as going beyond the scope of protection of the embodiments of the present disclosure.

[0215] The present disclosure further provides a readable storage medium having instructions stored thereon, which when executed by a computer, implement the functions of any one of the method embodiments described above.

[0216] The present disclosure further provides a computer program product, which when executed by a computer, implements the functions of any one of the above method embodiments.

[0217] In the above embodiments, all or part of the above may be implemented in software, hardware, firmware, or any combination thereof. When implemented using software, all or part of the above may be implemented in the form of a computer program product. The computer program product includes one or more computer programs. When the computer programs are loaded and executed in a computer, the computer program generates the flow or function according to the description of the embodiments of the present disclosure in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program may be stored in a computer-readable storage medium or may be transmitted from one computer-readable storage medium to another, for example, the computer program may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, radio, microwave, etc.) methods. The computer-readable storage medium may be any available medium accessible to a computer, or a data storage device such as a server, data center, etc., including one or more available media integrations. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a high-density digital video disc (DVD)), or a semiconductor medium (e.g., a solid state disk (SSD)).

[0218] As will be appreciated by those skilled in the art, the various numerals, such as first, second, etc., used in the present disclosure are divisions made for ease of explanation and do not limit the scope of the embodiments of the present disclosure, but also represent a priority order.

[0219] In the present disclosure, "at least one" may be described as "one or more", and more may be two, three, four or more, and is not limited in the present disclosure. In the embodiments of the present disclosure, for one technical feature, "first", "second", "third", "A", "B", "C" and "D" are used to distinguish the technical features in the technical feature category, and there is no priority or size order between the technical features described by "first", "second", "third", "A", "B", "C" and "D".

[0220] The correspondence shown by each table in the present disclosure may be set or defined in advance. The possible values ​​of the information in each table are merely examples and may be set to other values ​​and are not limited in the present disclosure. When setting the correspondence between the information and each parameter, it is not necessary to set all the correspondences shown in each table. For example, in the table of the present disclosure, the correspondences shown in some rows may not be set. In addition, the above table may be appropriately modified and adjusted, such as divided or combined. The names of the parameters shown in the themes of each table may also be called other names understandable to the communication device, and the possible values ​​or display methods of the parameters may be other possible values ​​or display methods understandable to the communication device. The above tables may use other data structures, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, and hash tables, when implemented.

[0221] Predefined in this disclosure may be understood as defined, predefined, stored, prestored, predefined, pre-set, cured, or pre-baked.

[0222] As can be understood by those skilled in the art, the combination of the units and algorithm steps of each example described in the embodiments disclosed herein can be realized by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical proposal. Those skilled in the art can use different methods to realize the described functions for each specific application, and such realization should not be considered as going beyond the scope of the present disclosure.

[0223] As can be clearly understood by those skilled in the art, for convenience and simplification of explanation, the specific work processes of the systems, devices and units described above are to be referred to the corresponding processes in the aforementioned method embodiments, and detailed descriptions thereof will be omitted here.

[0224] The above description is merely a specific embodiment of the present disclosure, and the scope of protection of the present disclosure is not limited thereto, and any changes or replacements that a person skilled in the art can easily think of without departing from the technical scope disclosed in the present disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be in accordance with the claims.

Claims

1. 1. A method for determining a transmission configuration indication state performed by a terminal device, comprising: receiving indication information, the indication information being used to indicate at least one set of Transmission Configuration Indication (TCI) states; determining a TCI state for transmission of the channel and / or signal based on at least one of a setting for the channel and / or signal, a number of TCI states indicated in the indication information, and a type of the channel; 13. A method for determining a transmission configuration indication state, comprising:

2. The method comprises: A set of TCI states of the at least one set of TCI states includes a joint TCI state; or The at least one set of TCI states further includes an independent uplink (UL) TCI state and / or a downlink (DL) TCI state.

2. The method of claim 1, wherein the transmission setting indication state is determined based on the determined transmission setting indication state.

3. the channel includes at least one of a physical downlink control channel (PDCCH), a physical downlink shared channel (PDSCH), a dynamically allowed physical uplink shared channel (PUSCH), a configured second type of PUSCH, a configured allowed repeated transmission of a second type of PUSCH, a configured allowed repeated transmission of a first type of PUSCH, a configured allowed first type of PUSCH, and a physical uplink control channel (PUCCH); The signal includes at least one of a channel state information reference signal (CSI RS) and a sounding reference signal (SRS).

2. The method of claim 1, wherein the transmission setting indication state is determined based on the determined transmission setting indication state.

4. The setting for the channel is transmission and / or repeated transmission based on at least two sets of TCI states; 4. The method of claim 3, wherein the transmission setting indication state is determined based on the determined transmission setting indication state.

5. The step of determining a TCI state for transmission of the channel and / or signal comprises: In response to at least two sets of TCI states being indicated in the indication information, determining that a TCI state for the channel transmission is a TCI state included in the at least two sets of TCI states.

5. A method for determining a transmission configuration indication state according to claim 3 or 4.

6. The step of determining a TCI state for transmission of the channel and / or signal comprises: In response to a set of TCI states being indicated in the indication information, determining that a TCI state for transmission of the channel and / or signal is the indicated set of TCI states; or determining, in response to the indication information indicating a set of TCI states and the setting for at least one of the channels being transmission based on a plurality of sets of TCI states, that a TCI state for the at least one channel transmission is the indicated set of TCI states and at least one set of previously set TCI states for the at least one channel; 5. A method for determining a transmission configuration indication state according to claim 3 or 4.

7. The step of determining a TCI state for transmission of the channel and / or signal comprises: determining, in response to the channel being a PDSCH, a dynamically allowed PUSCH, a configured allowed second type PUSCH, configured allowed repeated transmission of a second type PUSCH, or configured allowed repeated transmission of a first type PUSCH, a TCI state for the channel transmission is the indicated set of TCI states; 7. The method of claim 6, wherein the transmission setting indication state is determined.

8. determining that the TCI state for the at least one channel transmission is the indicated set of TCI states and at least one set of previously set TCI states for the at least one channel, In response to the at least one channel being a first type of PUSCH or PUCCH that is allowed to be configured, determining that a TCI state for the PUSCH or PUCCH transmission is the indicated set of TCI states and at least one set of previously configured TCI states for the PUSCH or PUCCH.

7. The method of claim 6, wherein the transmission setting indication state is determined.

9. The step of determining a TCI state for transmission of the channel and / or signal comprises: The channel and / or signal transmission is a transmission based on a set of TCI states, and the method includes determining a transmission of a set of TCI states for the transmission of the channel and / or signal based on a group identifier associated with the channel and / or signal; The channel or type of channel includes at least one of a PDCCH, a PDSCH, a first type of PUSCH that is permitted to be configured, a second type of PUSCH that is permitted to be configured, a dynamically permitted PUSCH, and a PUCCH; The signal includes at least one of a channel state information reference signal (CSI-RS), a sounding reference signal (SRS); 2. The method of claim 1, wherein the transmission setting indication state is determined based on the determined transmission setting indication state.

10. The method comprises: receiving configuration information, the configuration information being used to indicate a group identifier associated with the channel and / or signal; or the channel is a first PUCCH and the first PUCCH resource location is determined based on a first control resource set (CORESET) parameter, and determining a group identifier associated with the first CORESET as a group identifier associated with the first PUCCH; or The channel is a second PUCCH having a number greater than a threshold, and the second PUCCH resource position is determined based on a total number of control channel elements (CCEs) of a second CORESET and a CCE start position of a candidate PDCCH, and a group identifier associated with the second CORESET is determined as a group identifier associated with the second PUCCH; or The channel is a PDCCH, and the method further includes determining a group identifier or a control resource pool index of a CORESET associated with the PDCCH as a group identifier associated with the PDCCH. The method for determining a transmission configuration indication state according to claim 9 .

11. The indication information includes a group identifier associated with each set of TCI conditions. The method for determining a transmission configuration indication state according to claim 10.

12. The group identifier is at least one of a control resource set pool index, a CORESET group identifier, a PUCCH group identifier, a PUSCH group identifier, and a PDSCH group identifier; The method for determining a transmission configuration indication state according to claim 11 .

13. The channel comprises: A PDCCH transmitted based on a second CORESET, in which at least two sets of TCI states are set in the second CORESET; or A first PDCCH, the first PDCCH includes two candidate PDCCHs, and two search space sets (SS sets) associated with the two candidate PDCCHs have a link relationship, the SS set includes the first PDCCH associated with each CORESET; 7. The method of claim 6, wherein the transmission setting indication state is determined.

14. The indication information is a media access control layer control element (MAC CE), and any one of downlink control information (DCI) and a MAC CE; Method for determining a transmission configuration indication status according to any one of claims 1 to 13.

15. 1. A method for determining a transmission configuration indication state performed by a network device, comprising: sending indication information to a terminal device, the indication information being used to indicate at least one set of Transmission Configuration Indication (TCI) state; determining a TCI state for transmission of the channel and / or signal based on at least one of a setting for the channel and / or signal in the terminal device, a TCI state number indicated in the indication information, and a type of channel; 13. A method for determining a transmission configuration indication state, comprising:

16. The method comprises: A set of TCI states of the at least one set of TCI states includes a joint TCI state; or The method further includes the step of: wherein the at least one set of TCI states includes an independent uplink (UL) TCI state and / or a DL TCI state.

16. The method of claim 15, wherein the transmission configuration indication state is determined.

17. The channel includes at least one of a physical downlink control channel (PDCCH), a physical downlink shared channel (PDSCH), a dynamically allowed physical uplink shared channel (PUSCH), a configured second type of PUSCH, a configured allowed repeated transmission of a second type of PUSCH, a configured allowed repeated transmission of a first type of PUSCH, a configured allowed first type of PUSCH, and a physical uplink control channel (PUCCH); The signal includes at least one of a channel state information reference signal (CSI RS) and a sounding reference signal (SRS).

16. The method of claim 15, wherein the transmission configuration indication state is determined.

18. The setting for the channel is transmission and / or repeated transmission based on at least two sets of TCI states; 20. The method of claim 17, wherein the transmission configuration indication state is determined.

19. The step of determining a TCI state for transmission of a channel and / or signal of the terminal device comprises: In response to at least two sets of TCI states being indicated in the indication information, determining that a TCI state for the channel transmission is a TCI state included in the at least two sets of TCI states.

19. A method for determining a transmission configuration indication status according to claim 17 or 18.

20. The step of determining a TCI state for transmission of a channel and / or signal of the terminal device comprises: In response to a set of TCI states being indicated in the indication information, determining that a TCI state for transmission of the channel and / or signal is the indicated set of TCI states; or determining, in response to a set of TCI states being indicated in the indication information and a setting for at least one of the channels being transmission based on a plurality of sets of TCI states, that a TCI state for the at least one channel transmission is the indicated set of TCI states and at least one set of previously set TCI states set for the at least one channel; 19. A method for determining a transmission configuration indication status according to claim 17 or 18.

21. The step of determining a TCI state for transmission of a channel and / or signal of the terminal device comprises: determining, in response to the channel being a PDSCH, a dynamically allowed PUSCH, a configured allowed second type PUSCH, configured allowed repeated transmission of a second type PUSCH, or configured allowed repeated transmission of a first type PUSCH, a TCI state for the channel transmission is the indicated set of TCI states; 21. The method of claim 20, wherein the transmission configuration indication state is determined.

22. determining that the TCI state for the at least one channel transmission is the indicated set of TCI states and at least one set of previously set TCI states for the at least one channel, In response to the at least one channel being a first type of PUSCH or PUCCH that is allowed to be configured, determining that a TCI state for the PUSCH or PUCCH transmission is the indicated set of TCI states and at least one set of previously configured TCI states for the PUSCH or PUCCH.

21. The method of claim 20, wherein the transmission configuration indication state is determined.

23. The step of determining a TCI state for transmission of the channel and / or signal comprises: The channel and / or signal transmission is a transmission based on a set of TCI states, and the method includes determining a transmission of a set of TCI states for the transmission of the channel and / or signal based on a group identifier associated with the channel and / or signal; The channel or type of channel includes at least one of a PDCCH, a PDSCH, a first type of PUSCH that is permitted to be configured, a second type of PUSCH that is permitted to be configured, a dynamically permitted PUSCH, and a PUCCH; The signal includes at least one of a channel state information reference signal (CSI-RS), a sounding reference signal (SRS).

16. The method of claim 15, wherein the transmission configuration indication state is determined.

24. The method comprises: receiving configuration information, the configuration information being used to indicate a group identifier associated with the channel and / or signal; or the channel is a PUCCH and the PUCCH resource location is determined based on a first control resource set (CORESET) parameter, and determining a group identifier associated with the first CORESET as a group identifier associated with the PUCCH; or The channel is a second PUCCH having a number greater than a threshold, and the second PUCCH resource position is determined based on a total number of control channel elements (CCEs) of a second CORESET and a CCE start position of a candidate PDCCH, and a group identifier associated with the second CORESET is determined as a group identifier associated with the second PUCCH; or The channel is a PDCCH, and the method further includes determining a group identifier or a control resource pool index of a CORESET associated with the PDCCH as a group identifier associated with the PDCCH.

24. The method of claim 23, wherein the method further comprises:

25. The indication information includes a group identifier associated with each set of TCI states.

24. The method of claim 23, wherein the method further comprises:

26. The group identifier is at least one of a control resource set pool index, a CORESET group identifier, a PUCCH group identifier, a PUSCH group identifier, and a PDSCH group identifier; 26. The method of claim 25, wherein the method further comprises:

27. The channels and / or signals are A PDCCH transmitted based on a second CORESET, in which at least two sets of TCI states are set in the second CORESET; or A first PDCCH, the first PDCCH including two candidate PDCCHs, and two search space sets (SS sets) associated with the two candidate PDCCHs have a link relationship, the SS set including the first PDCCHs associated with each CORESET; 20. The method of claim 17, wherein the transmission configuration indication state is determined.

28. The indication information is a media access control layer control element (MAC CE), and any one of downlink control information (DCI) and a MAC CE; Method for determining a transmission configuration indication status according to any one of claims 15 to 27.

29. A communication apparatus configured in a terminal device, a transceiver module for receiving indication information, the indication information being used to indicate at least one set of transmission configuration indication (TCI) states; and a processing module for determining a TCI state for transmission of the channel and / or signal based on at least one of a setting for the channel and / or signal, a number of TCI states indicated in the indication information, and a type of the channel. A communication device comprising:

30. A communication device configured in a network device, A transceiver module for transmitting indication information to a terminal device, the first indication information being used to indicate at least one set of transmission configuration indication (TCI) state; and a processing module for determining a TCI state for transmission of the channel and / or signal based on at least one of a setting for the channel and / or signal in the terminal device, a number of TCI states indicated in the indication information, and a type of channel. A communication device comprising:

31. A communication device, comprising: A method for executing a computer program stored in the memory, the method comprising: a processor and a memory; and executing the computer program stored in the memory by the processor, the method causing the device to perform the method according to any one of claims 1 to 14, or the method according to any one of claims 15 to 28. A communication device comprising:

32. A computer-readable storage medium having instructions stored thereon, comprising: When said instructions are executed, the method according to any one of claims 1 to 14 is realized, or the method according to any one of claims 15 to 28 is realized. A computer-readable storage medium comprising:

Images