A terminal capability reporting method and apparatus, device, and storage medium

Abstract

The present disclosure relates to a terminal capability reporting method and device, equipment and storage medium. It comprises: sending first capability information, the first capability information is used to indicate whether the terminal supports the capability of dynamic switching between single transmission and reception point (single TRP) scheme and single frequency network (SFN) scheme, wherein the terminal is configured with unified transmission configuration indication state (unified TCI state). The present disclosure improves the transmission flexibility of physical shared channel based on unified TCI state by reporting whether the terminal supports the capability of dynamic switching between single TRP scheme and SFN scheme.

Description

Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to a terminal capability reporting method, apparatus, device, and storage medium. Background Technology

[0002] In new radio networks (NR), especially when the communication frequency band is in frequency range 2, beam-based transmission and reception are required to ensure coverage due to the rapid attenuation of high-frequency channels. Summary of the Invention

[0003] To overcome the problems existing in related technologies, this disclosure provides a terminal capability reporting method, apparatus, device, and storage medium.

[0004] According to a first aspect of the present disclosure, a terminal capability reporting method is provided. The method is executed by a terminal and includes: sending first capability information, the first capability information being used to indicate whether the terminal supports the ability to dynamically switch between a single transmit / receive point (STP) scheme and a single-frequency network (SFN) scheme, wherein the terminal is configured with a unified transmission configuration indication state (UNCI).

[0005] In some implementations, the method further includes: determining the TCI state to be used for physical shared channel transmission based on the TCI selection field in the first indication information or based on a default rule; wherein, in response to the terminal supporting dynamic switching, the TCI selection field is used to determine one or more TCI states from the unified TCI states to be selected for physical shared channel transmission; or, in response to the terminal not supporting dynamic switching, the TCI selection field is used to determine multiple TCI states from the unified TCI states to be selected for physical shared channel transmission; or, in response to the terminal not supporting dynamic switching and the first indication information not including the TCI selection field, multiple TCI states from the unified TCI states are selected for physical shared channel transmission based on a default rule.

[0006] In some implementations, the Physical Shared Channel is configured for SFN-based transmission.

[0007] In some implementations, the method further includes: performing dynamic switching between the singleTRP scheme and the SFN scheme based on the TCI selection field in the first indication information.

[0008] In some implementations, the method further includes receiving second indication information for determining a unified TCI state, the unified TCI state including at least one set of TCI states.

[0009] In some implementations, a TCI state includes any one of the following: an uplink UL TCI state and / or a downlink DL TCI state; or a joint TCI state.

[0010] In some implementations, the method further includes: receiving first indication information, the first indication information being carried by a first DCI.

[0011] In some implementations, the first DCI includes at least one of the following: DCI format 1_1; DCI format 1_2; DCI format 0_1; DCI format 0_2.

[0012] In some implementations, the method further includes: sending second capability information, the second capability information being used to indicate that the terminal supports SFN scheme capability, or to indicate that the terminal supports Physical Downlink Shared Channel (PDSCH) SFN scheme capability only.

[0013] In some implementations, the second indication information is carried through a first media access control unit (MAC CE), which indicates at least one set of TCI states, and the at least one set of TCI states corresponds to a code point in the TCI state field of the second DCI.

[0014] In some implementations, the second indication information is carried by a second MAC CE and a third DCI. The second MAC CE is used to indicate at least one set of TCI states corresponding to multiple code points in the TCI state field of the third DCI. The TCI state field in the third DCI is used to indicate one of the multiple code points.

[0015] In some implementations, the physical shared channel includes at least one of the following: Physical Uplink Shared Channel (PUSCH); Physical Uplink Shared Channel (PDSCH).

[0016] According to a second aspect of the present disclosure, a terminal capability reporting method is provided. The method is executed by a network device and includes: receiving first capability information, the first capability information being used to indicate whether the terminal supports the ability to dynamically switch between a single transmit / receive point (SingleTRP) scheme and a single-frequency network (SFN) scheme, wherein the terminal is configured with a unified transmission configuration indication state (Unified TCI state).

[0017] In some implementations, the method further includes: indicating, through the TCI selection field in the first indication information or based on a default rule, the TCI state to be used for physical shared channel transmission; wherein, in response to the terminal supporting dynamic switching, the TCI selection field is used to determine the selection of one or more TCI states from the unified TCI states for physical shared channel transmission; or, in response to the terminal not supporting dynamic switching, the TCI selection field is used to determine the selection of multiple TCI states from the unified TCI states for physical shared channel transmission; or, in response to the terminal not supporting dynamic switching and the first indication information not including the TCI selection field, the selection of multiple TCI states from the unified TCI states for physical shared channel transmission is determined based on a default rule.

[0018] In some implementations, the Physical Shared Channel is configured for SFN-based transmission.

[0019] In some implementations, the TCI selection field in the first indication information is also used to determine the dynamic switching between the terminal executing the singleTRP scheme and the SFN scheme.

[0020] In some implementations, the method further includes sending a second indication message for determining a unified TCI state, the unified TCI state including at least one set of TCI states.

[0021] In some implementations, a TCI state includes any one of the following: an uplink UL TCI state and / or a downlink DL TCI state; or a joint TCI state.

[0022] In some implementations, the method further includes: sending first indication information, the first indication information being carried by a first DCI.

[0023] In some implementations, the first DCI includes at least one of the following: DCI format 1_1; DCI format 1_2; DCI format 0_1; DCI format 0_2.

[0024] In some implementations, the method further includes receiving second capability information, which indicates that the terminal supports SFN scheme capability or indicates that the terminal supports Physical Downlink Shared Channel (PDSCH) SFN scheme capability.

[0025] In some implementations, the second indication information is carried through a first media access control unit (MAC CE), which indicates at least one set of TCI states, and the at least one set of TCI states corresponds to a code point in the TCI state field of the second DCI.

[0026] In some implementations, the second indication information is carried by a second MAC CE and a third DCI. The second MAC CE is used to indicate at least one set of TCI states corresponding to multiple code points in the TCI state field of the third DCI. The TCI state field in the third DCI is used to indicate one of the multiple code points.

[0027] In some implementations, the physical shared channel includes at least one of the following: Physical Uplink Shared Channel (PUSCH); Physical Uplink Shared Channel (PDSCH).

[0028] According to a third aspect of the present disclosure, a terminal capability reporting apparatus is provided. The apparatus includes: a sending module, configured to send first capability information, wherein the first capability information is used to indicate whether the terminal supports the ability to dynamically switch between a single transmit / receive point (SingleTRP) scheme and a single-frequency network (SFN) scheme, wherein the terminal is configured with a unified transmission configuration indication state (Unified TCI state).

[0029] In some embodiments, the apparatus further includes: a processing module, configured to determine the TCI state used for physical shared channel transmission based on the TCI selection field in the first indication information or based on a default rule; wherein, in response to the terminal supporting dynamic switching, the TCI selection field is used to determine to select one or more TCI states from the unified TCI states for physical shared channel transmission; or, in response to the terminal not supporting dynamic switching, the TCI selection field is used to determine to select multiple TCI states from the unified TCI states for physical shared channel transmission; or, in response to the terminal not supporting dynamic switching and the first indication information not including the TCI selection field, multiple TCI states from the unified TCI states are selected for physical shared channel transmission based on a default rule.

[0030] In some implementations, the Physical Shared Channel is configured for SFN-based transmission.

[0031] In some implementations, the processing module is also used to: perform dynamic switching between the single TRP scheme and the SFN scheme based on the TCI selection field in the first indication information.

[0032] In some embodiments, the apparatus further includes a receiving module for receiving second indication information, the second indication information being used to determine a unified TCI state, the unified TCI state including at least one set of TCI states.

[0033] In some implementations, a TCI state includes any one of the following: an uplink UL TCI state and / or a downlink DL TCI state; or a joint TCI state.

[0034] In some implementations, receiving is further configured to: receive first indication information, the first indication information being carried by a first DCI.

[0035] In some implementations, the first DCI includes at least one of the following: DCI format 1_1; DCI format 1_2; DCI format 0_1; DCI format 0_2.

[0036] In some implementations, the transmitting module is further configured to: transmit second capability information, which is used to indicate that the terminal supports SFN scheme capability, or to indicate that the terminal supports Physical Downlink Shared Channel (PDSCH) SFN scheme capability.

[0037] In some implementations, the second indication information is carried through a first media access control unit (MAC CE), which indicates at least one set of TCI states, and the at least one set of TCI states corresponds to a code point in the TCI state field of the second DCI.

[0038] In some implementations, the second indication information is carried by a second MAC CE and a third DCI. The second MAC CE is used to indicate at least one set of TCI states corresponding to multiple code points in the TCI state field of the third DCI. The TCI state field in the third DCI is used to indicate one of the multiple code points.

[0039] In some implementations, the physical shared channel includes at least one of the following: Physical Uplink Shared Channel (PUSCH); Physical Uplink Shared Channel (PDSCH).

[0040] According to a fourth aspect of the present disclosure, a terminal capability reporting apparatus is provided. The apparatus includes: a receiving module, configured to receive first capability information, the first capability information being used to indicate whether the terminal supports the ability to dynamically switch between a single transmit / receive point (SingleTRP) scheme and a single-frequency network (SFN) scheme, wherein the terminal is configured with a unified transmission configuration indication state (Unified TCI state).

[0041] In some embodiments, the apparatus further includes: a processing module, configured to indicate, via a TCI selection field in the first indication information or based on a default rule, the TCI state to be used for physical shared channel transmission; wherein, in response to the terminal supporting dynamic switching, the TCI selection field is used to determine the selection of one or more TCI states from the unified TCI states for physical shared channel transmission; or, in response to the terminal not supporting dynamic switching, the TCI selection field is used to determine the selection of multiple TCI states from the unified TCI states for physical shared channel transmission; or, in response to the terminal not supporting dynamic switching and the first indication information not including a TCI selection field, the selection of multiple TCI states from the unified TCI states for physical shared channel transmission is determined based on a default rule.

[0042] In some implementations, the Physical Shared Channel is configured for SFN-based transmission.

[0043] In some implementations, the TCI selection field in the first indication information is also used to determine the dynamic switching between the terminal executing the singleTRP scheme and the SFN scheme.

[0044] In some embodiments, the apparatus further includes a transmitting module for transmitting second indication information, the second indication information being used to determine a unified TCI state, the unified TCI state including at least one set of TCI states.

[0045] In some implementations, a TCI state includes any one of the following: an uplink UL TCI state and / or a downlink DL TCI state; or a joint TCI state.

[0046] In some implementations, the sending module is further configured to: send first indication information, the first indication information being carried by a first DCI.

[0047] In some implementations, the first DCI includes at least one of the following: DCI format 1_1; DCI format 1_2; DCI format 0_1; DCI format 0_2.

[0048] In some implementations, the receiving module is further configured to: receive second capability information, the second capability information being used to indicate that the terminal supports SFN scheme capability, or to indicate that the terminal supports Physical Downlink Shared Channel (PDSCH) SFN scheme capability only.

[0049] In some implementations, the second indication information is carried through a first media access control unit (MAC CE), which indicates at least one set of TCI states, and the at least one set of TCI states corresponds to a code point in the TCI state field of the second DCI.

[0050] In some implementations, the second indication information is carried by a second MAC CE and a third DCI. The second MAC CE is used to indicate at least one set of TCI states corresponding to multiple code points in the TCI state field of the third DCI. The TCI state field in the third DCI is used to indicate one of the multiple code points.

[0051] In some implementations, the physical shared channel includes at least one of the following: Physical Uplink Shared Channel (PUSCH); Physical Uplink Shared Channel (PDSCH).

[0052] According to a fifth aspect of the present disclosure, a terminal capability reporting device is provided, comprising: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to: execute the first aspect and any one of the methods in the first aspect.

[0053] According to a sixth aspect of the present disclosure, a terminal capability reporting device is provided, comprising: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to: execute the second aspect and any one of the methods in the second aspect.

[0054] According to a seventh aspect of the present disclosure, a non-transitory computer-readable storage medium is provided, which, when instructions in the storage medium are executed by a processor of a terminal, enables the terminal to perform the first aspect and any one of the methods in the first aspect.

[0055] According to an eighth aspect of the present disclosure, a non-transitory computer-readable storage medium is provided, which, when instructions in the storage medium are executed by a processor of a network device, enables the network device to perform the second aspect and any one of the methods in the second aspect.

[0056] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects: by reporting whether the terminal supports the ability to dynamically switch between the single TRP scheme and the SFN scheme, the transmission flexibility of the physical shared channel based on the unified TCI state is improved.

[0057] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0058] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0059] Figure 1 This is a schematic diagram of a wireless communication system according to an exemplary embodiment.

[0060] Figure 2 This is a flowchart illustrating a terminal capability reporting method according to an exemplary embodiment.

[0061] Figure 3 This is a flowchart illustrating another terminal capability reporting method according to an exemplary embodiment.

[0062] Figure 4 This is a schematic diagram of a terminal capability reporting device according to an exemplary embodiment.

[0063] Figure 5 This is a schematic diagram of another terminal capability reporting device according to an exemplary embodiment.

[0064] Figure 6 This is a schematic diagram of a terminal capability reporting device according to an exemplary embodiment.

[0065] Figure 7 This is a schematic diagram of another terminal capability reporting device according to an exemplary embodiment. Detailed Implementation

[0066] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure.

[0067] The communication methods disclosed herein can be applied to Figure 1 The wireless communication system 100 shown may include network device 110 and terminal 120. It is understood that... Figure 1 The wireless communication system shown is for illustrative purposes only. A wireless communication system may also include other network devices, such as core network equipment, wireless relay equipment, and wireless backhaul equipment. Figure 1 Not shown in the diagram. This disclosure does not limit the number of network devices and terminals included in the wireless communication system.

[0068] It is further understood that the wireless communication system of this disclosure is a network providing wireless communication functionality. The wireless communication system can employ different communication technologies, such as code division multiple access (CDMA), wideband code division multiple access (WCDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency-division multiple access (OFDMA), single carrier-frequency division multiple access (SC-FDMA), and carrier sense multiple access with collision avoidance. Based on factors such as capacity, speed, and latency, networks can be categorized as 2G, 3G, 4G, or future evolution networks, such as the 5th generation wireless communication system (5G) network, which can also be referred to as NR. For ease of description, this disclosure may sometimes simply refer to the wireless communication network as a network.

[0069] Furthermore, the network device 110 involved in this disclosure can also be referred to as a wireless access network device. This wireless access network device can be: a base station, an evolved Node B (eNB), a home base station, an access point (AP) in a wireless fidelity (WIFI) system, a wireless relay node, a wireless backhaul node, a transmission point (TP), or a TRP, etc. It can also be a gNB in ​​an NR system, or it can be a component or part of a base station. When it is a vehicle-to-everything (V2X) communication system, the network device can also be an in-vehicle device. It should be understood that the specific technologies and specific device forms used in the embodiments of this disclosure are not limited.

[0070] Furthermore, the terminal 120 involved in this disclosure can also be referred to as a terminal device, user equipment (UE), mobile station (MS), mobile terminal (MT), etc., which is a device that provides voice and / or data connectivity to a user. For example, the terminal can be a handheld device with wireless connectivity, an in-vehicle device, etc. Currently, some examples of terminals include: smartphones (Mobile Phones), pocket personal computers (PPCs), handheld computers, personal digital assistants (PDAs), laptops, tablets, wearable devices, or in-vehicle devices, etc. In addition, when it is a vehicle-to-everything (V2X) communication system, the terminal device can also be an in-vehicle device. It should be understood that the embodiments of this disclosure do not limit the specific technology or specific device form adopted by the terminal.

[0071] In this embodiment, network device 110 and terminal 120 can employ any feasible wireless communication technology to transmit data to each other. The transmission channel corresponding to network device 110 sending data to terminal 120 is called the downlink channel (DL), and the transmission channel corresponding to terminal 120 sending data to network device 110 is called the uplink channel (UL). It is understood that the network device involved in this embodiment can be a base station. Of course, the network device can also be any other possible network device, and the terminal can be any possible terminal; this disclosure does not impose any limitations.

[0072] In NR, especially when the communication frequency band is in frequency range 2, high-frequency channels attenuate quickly, so beam-based transmission and reception are required to ensure coverage.

[0073] In Release 16, the beams used for transmission of the Physical Downlink Control Channel (PDCCH) and / or its demodulation reference signal (DMRS), Physical Downlink Shared Channel (PDSCH) and / or its DMRS, Physical Uplink Control Channel (PUCCH) and / or its DMRS, Physical Uplink Shared Channel (PUSCH) and / or its DMRS, and / or reference signals are all independently indicated. Reference signals may include Channel State Information Reference Signal (CSI-RS), Sounding Reference Signal (SRS), Positioning Reference Signal (PRS), Tracking Reference Signal (TRS), etc. For example, CSI-RS may include CSI-RS for channel state information measurement, CSI-RS for beam measurement, or CSI-RS for path loss estimation. SRS may include SRS for codebook-based or non-codebook-based channel state information measurement, SRS for beam measurement, or SRS for positioning measurement.

[0074] Typically, in related technologies, the transmission of PDCCH and / or its DMRS, and the transmission of PUCCH and / or its DMRS, activate a beam through a medium access control element (MAC CE). The transmission of PDSCH and / or its DMRS, and the transmission of PUSCH and / or its DMRS, are indicated by downlink control information (DCI) signaling, which specifies the corresponding beam. The beam can be indicated by transmission configuration indication (TCI) state or spatial relation information.

[0075] To reduce signaling overhead, Rel-17 proposed using a unified TCI state. A unified TCI state can be indicated separately for uplink and downlink, such as a DL TCI state or a UL TCI state. A unified TCI state can also be a joint uplink / downlink indication, such as a joint TCI state. For example, if a network device indicates a DL TCI state for downlink, this DL TCI state can be used for the transmission of the terminal's PDSCH and / or PDSCH DMRS, PDCCH and / or PDCCH DMRS, and at least a portion of the CSI-RS. The aforementioned at least a portion of the CSI-RS can be aperiodic CSI-RS. As another example, if a network device indicates a UL TCI state for uplink, this UL TCI state can be used for the transmission of the terminal's PUSCH and / or PUSCH DMRS, PUCCH and / or PUCCH DMRS, and at least a portion of the SRS. For example, if a network device indicates a joint TCI state, that joint TCI state can be used simultaneously for the transmission of uplink and downlink channels and / or reference signals.

[0076] It is understandable that the TCI state can be used to instruct the terminal to use which receive beams when receiving PDCCH and / or PDCCH DMRS, and / or PDSCH and / or PDSCH DMRS. For example, the receive beam corresponding to the same transmit beam as the synchronization signal and physical broadcast channel block (SSB) or CSI-RS sent by the network device. That is, the PDCCH and / or PDCCH DMRS, and / or PDSCH and / or PDSCH DMRS are quasi-co-addressable with the SSB or CSI-RS. The TCI state can also be used to instruct the terminal to use which transmit beams when transmitting PUCCH and / or PUCCH DMRS, and / or PUSCH and / or PUSCH DMRS. For example, the transmit beam corresponding to the same receive beam as the SSB or CSI-RS sent by the network device, or the transmit beam corresponding to the same SRS sent by the terminal. That is, PUCCH and / or the DMRS of PUCCH, and / or PUSCH and / or the DMRS of PUSCH, are quasi-co-located with SSB, CSI-RS, or SRS. Among them, beam refers to quasi-co-location (QCL) type D.

[0077] The aforementioned beams can be indicated by TCI state or spatialrelationinfo. Specifically, the TCI state corresponding to the PDCCH includes the TCI state corresponding to the PDCCH and / or the PDCCH DMRS; that is, this TCI state is used for receiving the PDCCH and / or the PDCCH DMRS. Similarly, the TCI state corresponding to PDSCH includes the TCI state corresponding to PDSCH and / or PDSCH DMRS, that is, the TCI state is used for receiving PDSCH and / or PDSCH DMRS; the TCI state or spatialrelation info corresponding to PUCCH includes the TCI state or spatialrelation info corresponding to PUCCH and / or PUCCH DMRS, that is, the TCI state or spatialrelation info is used for transmitting PUCCH and / or PUCCH DMRS; the TCI state or spatialrelation info corresponding to PUSCH includes the TCI state or spatialrelation info corresponding to PUSCH and / or PUSCH DMRS, that is, the TCI state or spatialrelation info is used for transmitting PUSCH and / or PUSCH DMRS.

[0078] However, Rel-17 currently only considers the unified TCI state for single-TRPs. That is, it only considers configuring one unified TCI state for beam indication. This could include, for example, a UL TCI state, a DL TCI state, and / or a joint TCI state. When a multi-TRP provides transmission services to the terminal, multiple TCI states will be configured accordingly. In this case, how to indicate multiple unified TCI states is currently undetermined.

[0079] For multi-TRP scenarios, including single-DCI methods, if some channels and / or their DMRS for the corresponding PDCCH and / or PDCCH, PDSCH and / or PDSCH, PUCCH and / or PUCCH, and PUSCH and / or PUSCH, are configured with multi-TRP while others are configured with single-TRP, then when the unified TCI state indicates multiple TCI states, dynamic switching between multi-TRP and single-TRP may be required for channels configured with multi-TRP. Determining which of the multiple TCI states each channel corresponds to requires additional signaling.

[0080] In the relevant schemes, PDCCH uses radio resource control (RRC) signaling to determine which of the multiple TCI states (or sets of TCI states) each control resource set (CORESET) or CORESET group is based on for PDCCH reception. Similarly, PUCCH also uses RRC signaling to determine which of the multiple TCI states each PUCCH or PUCCH group is based on for PUCCH transmission. PDSCH uses the first indication field of PDSCH in the DCI to determine which of the multiple TCI states (or sets of TCI states) each PDSCH is based on for PDSCH reception. PUSCH uses the second indication field of PUSCH in the DCI to determine which of the multiple TCI states (or sets of TCI states) each PUSCH is based on for PUSCH transmission.

[0081] However, PDSCH and PUSCH can be configured with single-frequency network (SFN) schemes, such as the following two methods:

[0082] SFN scheme A: This means that the same TB is transmitted through different TCI states on the DMRS port of the same CDM group with the same frequency domain resources and the same time domain resources. The PDSCH / PUSCH and the parameters in the two TCI states have QCL relationship.

[0083] SFN schemeB: This indicates that the same TB is transmitted through different TCI states on the DMRS port of the same CDM group with the same frequency and time domain resources. The PDSCH / PUSCH parameters in the two TCI states have a QCL relationship with the parameters in the second TCI state, except for some parameters in the second TCI state. The parameters in the second TCI state may include Doppler shift, Doppler spread, etc.

[0084] When the physical shared channel (e.g., PDSCH and / or PUSCH) is configured as an SFN scheme, it is also necessary to consider that the terminal receiver has the capability to support dynamic SFN.

[0085] Related technologies describe indicating terminal capabilities based on the TCI state field in DCI. However, in the scenario of a unified TCI state, the TCI state field is used to indicate the unified TCI state. That is, the TCI state field indicates not only the TCI state of the PDSCH but also the TCI state of other channels. A new indication field is needed to clarify the relationship between the TCI state of the PDSCH and the unified TCI state indicated by the TCI state field.

[0086] Clearly, in a unified TCI state scenario, whether a terminal supports SFN capabilities cannot be indicated by the TCIstate field.

[0087] Therefore, this disclosure provides a terminal capability reporting method, apparatus, device, and storage medium, which improves the transmission flexibility of the physical shared channel based on the unified TCIstate by reporting whether the terminal supports the ability to dynamically switch between the single TRP scheme and the SFN scheme.

[0088] Figure 2 This is a flowchart illustrating a terminal capability reporting method according to an exemplary embodiment, such as... Figure 2 As shown, the method is executed by the terminal and may include the following steps:

[0089] In step S11, the first capability information is sent.

[0090] In some embodiments, the terminal may send first capability information to the network device. This first capability information indicates whether the terminal supports the ability to dynamically switch between the single TRP scheme and the SFN scheme. The terminal is configured with a unified TCI state.

[0091] For example, a terminal can determine the dynamic handover between the single TRP scheme and the SFN scheme based on the TCI selection field in the DCI. The terminal is configured with a unified TCI state, which can be understood as the terminal being configured with a DL TCI state, an ULTCI state, and / or a joint TCI state.

[0092] It is understood that in some embodiments, the following steps may be included before S11:

[0093] In step S12, the first capability information is determined.

[0094] In some embodiments, the terminal's first capability information may be pre-set, or determined by the terminal based on its own specific circumstances. For example, the terminal may determine its first capability information based on the specific version it belongs to. The first capability information for different versions may be the same or different. Another example is that the terminal determines its first capability information based on its own hardware or software capabilities. Yet another example is that the terminal may have pre-stored pre-set first energy information.

[0095] It is understood that this disclosure does not limit the process by which the terminal determines the first capability information.

[0096] This disclosure improves the transmission flexibility of the physical shared channel based on the unified TCI state by reporting whether the terminal supports the ability to dynamically switch between the single TRP scheme and the SFN scheme.

[0097] The terminal capability reporting method provided in this embodiment may further include: determining the TCI state used for physical shared channel transmission based on the TCI selection field in the first indication information or based on the default rule.

[0098] In some embodiments, the terminal can determine the TCI state used for physical shared channel transmission based on the TCI selection field in the first indication information. The TCI selection field in the first indication information is used to determine one or more TCI states corresponding to the physical shared channel. That is, the terminal can perform physical shared channel transmission according to one or more TCI states determined by the TCI selection field in the first indication information.

[0099] It should be understood that the TCI selection domain in the various embodiments of this disclosure may also be referred to as the TCI association domain or the TCI mapping domain.

[0100] In some embodiments, the terminal may determine the TCI state to be used when performing physical shared channel transmission based on default rules.

[0101] It is understood that the physical shared channel may include, for example, PDSCH and / or PUSCH.

[0102] In some embodiments, the terminal capability reporting method provided in this disclosure may further include: in response to the terminal supporting dynamic switching, the TCI selection field is used to determine one or more sets of TCI states in the unified TCI state for transmission on the physical shared channel.

[0103] For example, the unified TCI state configured in the terminal includes multiple TCI states. If the terminal supports dynamic switching between the singleTRP scheme and the SFN scheme, the terminal can determine which one or more TCI states from the unified TCI states to use for physical shared channel transmission based on the TCI selection field in the first indication information.

[0104] It can be understood that if the TCI selection field in the first indication information determines that one set of TCI states from the unified TCI states is selected for transmission via the physical shared channel, then the terminal can be considered to have switched to the single TRP scheme. If the TCI selection field in the first indication information determines that multiple sets of TCI states from the unified TCI states are selected for transmission via the physical shared channel, then the terminal can be considered to have switched to the SFN scheme.

[0105] In some embodiments, the terminal capability reporting method provided in this disclosure may further include: in response to the terminal not supporting dynamic switching, the TCI selection field is used to determine the selection of multiple TCI states in the unified TCI state for transmission on the physical shared channel.

[0106] For example, the unified TCI state configured in the terminal includes multiple TCI states. If the terminal does not support dynamic switching between the single TRP scheme and the SFN scheme, then based on the TCI selection field in the first indication information, the terminal can only determine which of the multiple TCI states in the unified TCI state to select for physical shared channel transmission. In other words, if the terminal does not support dynamic switching between the single TRP scheme and the SFN scheme, it cannot perform physical shared channel transmission based on the single TRP scheme.

[0107] In some embodiments, the terminal capability reporting method provided in this disclosure may further include: in response to the terminal not supporting dynamic switching and the first indication information not including a TCI selection field, the terminal may determine to select multiple TCI states in the unified TCI state for transmission on the physical shared channel based on default rules.

[0108] For example, the unified TCI state configured in the terminal includes multiple TCI states. If the terminal does not support dynamic switching between the single TRP scheme and the SFN scheme, and the terminal determines based on RRC signaling configuration that the first indication information does not include the TCI selection field (i.e., the TCI selection field is configured not to appear in the first indication information), then the terminal can select multiple TCI states from the unified TCI state for physical shared channel transmission based on default rules. In other words, if the terminal does not support dynamic switching between the single TRP scheme and the SFN scheme, it cannot perform physical shared channel transmission based on the single TRP scheme. It is understood that the default rules can be specified by the protocol or pre-set, and this disclosure does not impose any restrictions.

[0109] It should be understood that the single TRP scheme means that the terminal uses one set of TCI states to transmit the physical shared channel. The SFN scheme means that the terminal uses multiple sets of TCI states to transmit the physical shared channel.

[0110] In the case of a unified TCI state, this disclosure can determine the adopted TCI state through the TCI selection field or default rule in the first indication information, adapting to the transmission of physical shared channels under the single TRP scheme and SFN scheme, thereby improving the transmission flexibility of physical shared channels.

[0111] In the terminal capability reporting method provided in this embodiment, the physical shared channel is configured for SFN-based transmission.

[0112] In some embodiments, PDSCH and / or PUSCH can be configured for SFN-based transmission.

[0113] In other words, PDSCH and / or PUSCH can be configured to use multiple TCI states for transmission.

[0114] The physical shared channel disclosed herein can be configured for SFN-based transmission, thereby improving the transmission flexibility of the physical shared channel.

[0115] The terminal capability reporting method provided in this embodiment may further include: performing dynamic switching between the single TRP scheme and the SFN scheme based on the TCI selection field in the first indication information.

[0116] In some embodiments, the terminal may perform dynamic switching between the single TRP scheme and the SFN scheme based on the TCI selection field in the first indication information.

[0117] In other words, the dynamic switching between the single TRP scheme and the SFN scheme can be indicated based on the TCI selection field in the first indication information.

[0118] For example, when the TCI selection field in the first indication information indicates the association between a set of TCI states and the physical shared channel, the terminal can determine to switch to the single TRP scheme based on the TCI selection field in the first indication information, and use the indicated set of TCI states to transmit the corresponding physical shared channel.

[0119] For example, when the TCI selection field in the first indication information indicates the association between multiple sets of TCI states and the physical shared channel, the terminal can determine to switch to the SFN scheme based on the TCI selection field in the first indication information, and use the indicated multiple sets of TCI states to transmit the corresponding physical shared channel.

[0120] This disclosure, based on the unified TCI state, allows for dynamic switching between the single TRP scheme and the SFN scheme via the TCI selection field in the first indication information, thereby improving the transmission flexibility of the physical shared channel.

[0121] The terminal capability reporting method provided in this embodiment may further include: receiving second indication information, the second indication information being used to determine a unified TCI state. The unified TCI state includes at least one set of TCI states.

[0122] In some embodiments, the terminal may receive second indication information, which is used to determine a unified TCI state. The unified TCI state may include at least one set of TCI states. For example, the unified TCI state may include N sets of TCI states, where N is a positive integer greater than or equal to 1.

[0123] For example, the terminal receives a second indication message sent by the network device. This second indication message directly indicates N sets of TCI states.

[0124] For example, the terminal determines the N sets of TCI states by receiving multiple second indication messages. For instance, the first second indication message indicates two sets of TCI states, including a first TCI state and a second TCI state. The second second indication message can indicate one set of TCI states, which may be an update of the first TCI state among the two sets indicated by the first second indication message. Therefore, the N sets of TCI states can include only the one set indicated by the second second indication message; or the N sets of TCI states can include both the second TCI state indicated by the first second indication message and the first TCI state indicated by the second second indication message. It should be understood that the first TCI state and / or the second TCI state included in the N sets of TCI states should be the most recent first TCI state and the most recent second TCI state indicated by the multiple second indication messages, respectively.

[0125] For example, the first second indication message indicates one TCI state, such as corresponding to the first TCI state; the second second indication message indicates one TCI state, such as corresponding to the second TCI state. N TCI states can include the first TCI state and the second TCI state indicated by the two second indication messages respectively. The first TCI state and the second TCI state can be understood as corresponding to different TRPs, different bit positions contained in the MAC CE, or other characteristics; this disclosure does not impose any limitations.

[0126] This disclosure applies to scenarios where the unified TCI state includes multiple TCI states. By reporting whether the terminal supports the ability to dynamically switch between the single TRP scheme and the SFN scheme, the transmission flexibility of the physical shared channel is improved in the case of unified TCI state.

[0127] In the terminal capability reporting method provided in this embodiment, a set of TCI states includes any one of the following: ULTCI state and / or DL ​​TCI state; joint TCI state.

[0128] In some embodiments, a set of TCI states may include UL TCI state and / or DL ​​TCI state.

[0129] For example, a TCI state can include a UL TCI state. Another example is that a TCI state can include a DLTCI state. Yet another example is that a TCI state can include both a UL TCI state and a DL TCI state.

[0130] In some embodiments, a set of TCI states may include joint TCI states.

[0131] It is understandable that a joint TCI state can be used to indicate both the uplink TCI state and the downlink TCI state simultaneously.

[0132] This disclosure provides a set of multiple representations of TCI state, so as to improve the transmission flexibility of physical shared channels in the case of unified TCI state by reporting whether the terminal supports the ability to dynamically switch between single TRP scheme and SFN scheme.

[0133] The terminal capability reporting method provided in this embodiment may further include: receiving first indication information, wherein the first indication information is carried by a first DCI.

[0134] In some embodiments, the terminal may also receive first indication information. This first indication information is carried via a first DCI.

[0135] It is understood that the first DCI includes a TCI selection field, which is used to determine the association between the physical shared channel and at least one set of TCI states. The at least one set of TCI states can be determined based on the second indication information.

[0136] In other words, the TCI selection field in the first DCI can determine which one or more TCI states from at least one set of TCI states will be used for PDSCH and / or PUSCH transmission. The terminal can dynamically switch between the single TRP scheme and the SFN scheme based on the one or more TCI states determined by the TCI selection field. For example, if the TCI selection field determines one TCI state, the terminal switches to the single TRP scheme; or if the TCI selection field determines multiple TCI states, the terminal switches to the SFN scheme.

[0137] In the case of a unified TCI state, this disclosure can determine the relationship between the physical shared channel and the TCI state through the TCI selection field in the first indication information, thereby realizing dynamic switching between the indication single TRP scheme and the SFN scheme and improving the transmission flexibility of the physical shared channel.

[0138] In the terminal capability reporting method provided in this embodiment, the first DCI includes at least one of the following: DCIformat1_1; DCI format 1_2; DCI format 0_1; DCI format 0_2.

[0139] In some embodiments, the first DCI may include DCI format 1_1.

[0140] For example, if the first DCI indicates the association between the PDSCH and the TCI state, the first DCI can be DCIformat 1_1.

[0141] In some embodiments, the first DCI may include DCI format 1_2.

[0142] For example, if the first DCI indicates the association between the PDSCH and the TCI state, the first DCI can be DCIformat 1_2.

[0143] In some embodiments, the first DCI may include DCI format 0_1.

[0144] For example, if the first DCI indicates the association between the PUSCH and TCI states, the first DCI can be DCIformat 0_1.

[0145] In some embodiments, the first DCI may include DCI format 0_2.

[0146] For example, if the first DCI indicates the association between the PUSCH and TCI states, the first DCI could be DCIformat 0_2.

[0147] In some embodiments, the first DCI may further include: DCI format 1_1, DCI format 1_2; DCI format 1_1, DCI format 0_1; DCI format 1_1, DCI format 0_2; DCI format 1_2, DCI format 0_1; DCI format 1_2, DCI format 0_2; DCI format 0_1, DCI format 0_2; DCI format 1_1, DCI format 1_2, DCI format 0_1; DCI format 1_1, DCI format 1_2, DCI format 0_2; DCI format1_1, DCI format 0_1, DCI format 0_2; DCI format 1_2, DCI format 0_1, DCI format 0_2; DCI format 1_1, DCI format 1_2, DCI format 0_1, DCIformat 0_2.

[0148] This disclosure provides multiple forms of the first DCI, thereby indicating the relationship between different physical shared channels and TCI states, and thus enabling dynamic switching between the single TRP scheme and the SFN scheme, improving the transmission flexibility of the physical shared channel.

[0149] The terminal capability reporting method provided in this embodiment may further include: sending second capability information. The second capability information is used to indicate that the terminal supports SFN scheme capability, or to indicate that the terminal supports only PDSCH SFN scheme capability.

[0150] In some embodiments, the terminal may send second capability information to the network device. This second capability information may be used to indicate that the terminal supports SFN scheme capabilities.

[0151] For example, the second capability information could be an indication that the terminal supports sfn-Scheme.

[0152] In some embodiments, the terminal may send second capability information to the network device. This second capability information may be used to indicate that the terminal has only PDSCH SFN scheme capability.

[0153] For example, the second capability information could be an indication that the terminal supports sfn-Scheme-PDSCH-only.

[0154] It is understandable that the second capability can be a prerequisite capability for the terminal to support the first capability.

[0155] This disclosure can also report other terminal capabilities that are different from the first capability information, thereby improving the transmission flexibility of the physical shared channel based on the unified TCI state.

[0156] In the terminal capability reporting method provided in this embodiment, the second indication information is carried by the first MAC CE. The first MAC CE is used to indicate at least one set of TCI states, and the at least one set of TCI states corresponds to a codepoint in the TCI state field of the second DCI.

[0157] In some embodiments, the second indication information can be carried through a first MAC CE. This first MAC CE can be used to indicate at least one set of TCI states, for example, N sets of TCI states. Each set of TCI states can correspond to a codepoint in the TCI state field of the second DCI. In this case, further indication of the codepoint by the TCI state field of the second DCI is not required.

[0158] This disclosure provides a method for indicating at least one TCI state by carrying second indication information through a MAC CE, so that in the scenario of a unified TCI state, the ability of the terminal to dynamically switch between the single TRP scheme and the SFN scheme is reported, thereby improving the transmission flexibility of the physical shared channel based on the unified TCI state.

[0159] In the terminal capability reporting method provided in this embodiment, the second indication information is carried by the second MAC CE and the third DCI. The second MAC CE is used to indicate at least one set of TCI states corresponding to multiple code points in the TCI state field of the third DCI. The TCI state field in the third DCI is used to indicate one of the multiple code points.

[0160] In some embodiments, the second indication information can be carried through a second MAC CE and a third DCI. The second MAC CE can be used to indicate multiple sets of at least one TCI state, for example, multiple N sets of TCI states. It is understood that each of the N sets of TCI states corresponds to one codepoint. That is, the second MAC CE indicates the N sets of TCI states corresponding to multiple codepoints respectively. The TCI state field in the third DCI is used to indicate one codepoint among the multiple codepoints, thereby further indicating a specific one of the N sets of TCI states.

[0161] It is understandable that in the N sets of TCI states corresponding to multiple code points, the value of N can be the same or different.

[0162] This disclosure provides a method for indicating at least one TCI state by carrying second indication information through MAC CE and DIC, so as to improve the transmission flexibility of the physical shared channel in the case of unified TCI state by reporting whether the terminal supports the ability to dynamically switch between the single TRP scheme and the SFN scheme.

[0163] In the terminal capability reporting method provided in this embodiment, the physical shared channel includes at least one of the following: PUSCH; PDSCH.

[0164] In some embodiments, the physical shared channel includes PUSCH.

[0165] For example, the terminal can determine the association between PUSCH and at least one set of TCI states based on the TCI selection field of the first indication information.

[0166] In some embodiments, the physical shared channel includes the PDSCH.

[0167] For example, the terminal can determine the association between PDSCH and at least one set of TCI states based on the TCI selection field of the first indication information.

[0168] In some embodiments, the physical shared channel includes PUSCH and PDSCH.

[0169] For example, the terminal can determine the association between PUSCH and at least one set of TCI states, and the association between PDSCH and at least one set of TCI states, based on the TCI selection field of the first instruction information.

[0170] This disclosure is applicable to various physical shared channels so as to indicate the relationship between the corresponding physical shared channel and the TCI state through the first indication information, thereby realizing dynamic switching between the single TRP scheme and the SFN scheme and improving the transmission flexibility of the physical shared channel.

[0171] Based on the same concept, this disclosure also provides a method for terminal capability reporting executed on the network device side.

[0172] Figure 3 This is a flowchart illustrating another terminal capability reporting method according to an exemplary embodiment, such as... Figure 3 As shown, the method is executed by a network device and may include the following steps:

[0173] In step S21, the first capability information is received.

[0174] In some embodiments, the network device may receive first capability information sent by the terminal. This first capability information indicates whether the terminal supports the ability to dynamically switch between the single TRP scheme and the SFN scheme. The terminal is configured with a unified TCI state.

[0175] For example, a terminal can determine the dynamic handover between the single TRP scheme and the SFN scheme based on the TCI selection field in the DCI sent by the network device. Here, the terminal is configured with a unified TCI state, which can be understood as the terminal being configured with a DL TCI state, a UL TCI state, and / or a joint TCI state. In other words, the network device can indicate the DL TCI state, UL TCI state, and / or joint TCI state to the terminal.

[0176] This disclosure improves the transmission flexibility of the physical shared channel based on the unified TCI state by reporting whether the terminal supports the ability to dynamically switch between the single TRP scheme and the SFN scheme.

[0177] The terminal capability reporting method provided in this embodiment may further include: determining the TCI state used for physical shared channel transmission by means of the TCI selection field in the first indication information or based on the default rule.

[0178] In some embodiments, the network device can determine the TCI state used for physical shared channel transmission through the TCI selection field in the first indication information. The TCI selection field in the first indication information is used to determine one or more TCI states corresponding to the physical shared channel. That is, the terminal can perform physical shared channel transmission based on one or more TCI states determined by the TCI selection field in the first indication information.

[0179] It should be understood that the TCI selection domain in the various embodiments of this disclosure may also be referred to as the TCI association domain or the TCI mapping domain.

[0180] In some embodiments, network devices may determine the TCI state to be used when performing physical shared channel transmissions based on default rules.

[0181] It is understood that the physical shared channel may include, for example, PDSCH and / or PUSCH.

[0182] In some embodiments, the terminal capability reporting method provided in this disclosure may further include: in response to the terminal supporting dynamic switching, the TCI selection field is used to determine one or more sets of TCI states in the unified TCI state for transmission on the physical shared channel.

[0183] For example, the unified TCI state configured by the network device for the terminal includes multiple TCI states. If the terminal supports dynamic switching between the single TRP scheme and the SFN scheme, the network device can determine, through the TCI selection field in the first indication information, whether the terminal selects one or more unified TCI states for transmission on the physical shared channel.

[0184] It can be understood that if the TCI selection field in the first indication information determines that one set of TCI states from the unified TCI states is selected for transmission via the physical shared channel, then the terminal can be considered to have switched to the single TRP scheme. If the TCI selection field in the first indication information determines that multiple sets of TCI states from the unified TCI states are selected for transmission via the physical shared channel, then the terminal can be considered to have switched to the SFN scheme.

[0185] In some embodiments, the terminal capability reporting method provided in this disclosure may further include: in response to the terminal not supporting dynamic switching, the TCI selection field is used to determine the selection of multiple TCI states in the unified TCI state for transmission on the physical shared channel.

[0186] For example, the unified TCI state configured by the network device for the terminal includes multiple TCI states. If the terminal does not support dynamic switching between the single TRP scheme and the SFN scheme, the network device can only determine, through the TCI selection field in the first indication information, which determines whether the terminal selects one of the multiple TCI states from the unified TCI state for physical shared channel transmission. In other words, if the terminal does not support dynamic switching between the single TRP scheme and the SFN scheme, it cannot perform physical shared channel transmission based on the single TRP scheme.

[0187] In some embodiments, the terminal capability reporting method provided in this disclosure may further include: in response to the terminal not supporting dynamic switching and the first indication information not including a TCI selection domain, the network device may determine, based on default rules, to select multiple TCI states in the unified TCI state for transmission on the physical shared channel.

[0188] For example, the unified TCI state configured by the network device for the terminal includes multiple TCI states. If the terminal does not support dynamic switching between the single TRP scheme and the SFN scheme, and the first indication information does not include the TCI selection field (i.e., the TCI selection field is configured not to appear in the first indication information), then the network device can determine that the terminal selects multiple TCI states from the unified TCI state for physical shared channel transmission based on default rules. In other words, if the terminal does not support dynamic switching between the single TRP scheme and the SFN scheme, it cannot perform physical shared channel transmission based on the single TRP scheme. It is understood that the default rules can be specified by the protocol or pre-set, and this disclosure does not impose any restrictions.

[0189] It should be understood that the single TRP scheme means that the terminal uses one set of TCI states to transmit the physical shared channel. The SFN scheme means that the terminal uses multiple sets of TCI states to transmit the physical shared channel.

[0190] In the case of a unified TCI state, this disclosure can determine the adopted TCI state through the TCI selection field or default rule in the first indication information, adapting to the transmission of physical shared channels under the single TRP scheme and SFN scheme, thereby improving the transmission flexibility of physical shared channels.

[0191] In the terminal capability reporting method provided in this embodiment, the physical shared channel is configured for SFN-based transmission.

[0192] In some embodiments, PDSCH and / or PUSCH can be configured for SFN-based transmission.

[0193] In other words, PDSCH and / or PUSCH can be configured to use multiple TCI states for transmission.

[0194] The physical shared channel disclosed herein can be configured for SFN-based transmission, thereby improving the transmission flexibility of the physical shared channel.

[0195] In the terminal capability reporting method provided in this embodiment, the TCI selection field in the first indication information is also used to instruct the terminal to perform dynamic switching between the single TRP scheme and the SFN scheme.

[0196] In some embodiments, the TCI selection field in the first indication information is also used to instruct the terminal to perform dynamic switching between the single TRP scheme and the SFN scheme.

[0197] In other words, for dynamic handover between the single TRP scheme and the SFN scheme, the terminal can indicate the handover based on the TCI selection field in the first indication information.

[0198] For example, when the TCI selection field in the first indication information indicates the association between a set of TCI states and the physical shared channel, the terminal can determine to switch to the single TRP scheme based on the TCI selection field in the first indication information, and use the indicated set of TCI states to transmit the corresponding physical shared channel.

[0199] For example, when the TCI selection field in the first indication information indicates the association between multiple TCI states and the physical shared channel, the terminal can determine to switch to the SFN scheme based on the TCI selection field in the first indication information, and use the indicated multiple TCI states to transmit the corresponding physical shared channel.

[0200] This disclosure, based on the unified TCI state, allows for dynamic switching between the single TRP scheme and the SFN scheme via the TCI selection field in the first indication information, thereby improving the transmission flexibility of the physical shared channel.

[0201] The terminal capability reporting method provided in this embodiment may further include: sending second indication information, the second indication information being used to determine a unified TCI state. The unified TCI state includes at least one set of TCI states.

[0202] In some embodiments, the network device may send a second indication message to indicate a unified TCI state, wherein the unified TCI state may include at least one set of TCI states. For example, the unified TCI state may include N sets of TCI states, where N is a positive integer greater than or equal to 1.

[0203] For example, the network device sends a second instruction message to the terminal. This second instruction message directly indicates N sets of TCIstates.

[0204] For example, a network device sends multiple second indication messages to a terminal to determine the indicated N sets of TCI states. For instance, the first second indication message indicates two sets of TCI states, including a first TCI state and a second TCI state. The second second indication message can indicate one set of TCI states, which can be an update of the first TCI state among the two sets indicated by the first second indication message. Therefore, the N sets of TCI states can include only the one set indicated by the second second indication message; or the N sets of TCI states can include both the second TCI state indicated by the first second indication message and the first TCI state indicated by the second second indication message. It should be understood that the first TCI state and / or the second TCI state included in the N sets of TCI states should be the most recent first TCI state and the most recent second TCI state indicated by the multiple second indication messages, respectively.

[0205] For example, the first second indication message indicates one TCI state, such as corresponding to the first TCI state; the second second indication message indicates one TCI state, such as corresponding to the second TCI state. N TCI states can include the first TCI state and the second TCI state indicated by the two second indication messages respectively. The first TCI state and the second TCI state can be understood as corresponding to different TRPs, different bit positions contained in the MAC CE, or other characteristics; this disclosure does not impose any limitations.

[0206] This disclosure applies to scenarios where the unified TCI state includes multiple TCI states. By reporting whether the terminal supports the ability to dynamically switch between the single TRP scheme and the SFN scheme, the transmission flexibility of the physical shared channel is improved in the case of unified TCI state.

[0207] In the terminal capability reporting method provided in this embodiment, a set of TCI states includes any one of the following: ULTCI state and / or DL ​​TCI state; joint TCI state.

[0208] In some embodiments, a set of TCI states may include UL TCI state and / or DL ​​TCI state.

[0209] For example, a TCI state can include a UL TCI state. Another example is that a TCI state can include a DLTCI state. Yet another example is that a TCI state can include both a UL TCI state and a DL TCI state.

[0210] In some embodiments, a set of TCI states may include joint TCI states.

[0211] It is understandable that a joint TCI state can be used to indicate both the uplink TCI state and the downlink TCI state simultaneously.

[0212] This disclosure provides a set of multiple representations of TCI state, so as to improve the transmission flexibility of physical shared channels in the case of unified TCI state by reporting whether the terminal supports the ability to dynamically switch between single TRP scheme and SFN scheme.

[0213] The terminal capability reporting method provided in this embodiment may further include: sending first indication information. The first indication information is carried by a first DCI.

[0214] In some embodiments, the network device may also send first indication information to the terminal. The first indication information is carried via a first DCI.

[0215] It is understood that the first DCI includes a TCI selection field, which is used to determine the association between the physical shared channel and at least one set of TCI states. The at least one set of TCI states can be determined based on the second indication information.

[0216] In other words, the TCI selection field in the first DCI can determine which one or more TCI states from at least one set of TCI states will be used for PDSCH and / or PUSCH transmission. The terminal can dynamically switch between the single TRP scheme and the SFN scheme based on the one or more TCI states determined by the TCI selection field. For example, if the TCI selection field determines one TCI state, the terminal switches to the single TRP scheme; or if the TCI selection field determines multiple TCI states, the terminal switches to the SFN scheme.

[0217] In the case of a unified TCI state, this disclosure can determine the relationship between the physical shared channel and the TCI state through the TCI selection field in the first indication information, thereby realizing dynamic switching between the indication single TRP scheme and the SFN scheme and improving the transmission flexibility of the physical shared channel.

[0218] In the terminal capability reporting method provided in this embodiment, the first DCI includes at least one of the following: DCIformat1_1; DCI format 1_2; DCI format 0_1; DCI format 0_2.

[0219] In some embodiments, the first DCI may include DCI format 1_1.

[0220] For example, if the first DCI indicates the association between the PDSCH and the TCI state, the first DCI can be DCIformat 1_1.

[0221] In some embodiments, the first DCI may include DCI format 1_2.

[0222] For example, if the first DCI indicates the association between the PDSCH and the TCI state, the first DCI can be DCIformat 1_2.

[0223] In some embodiments, the first DCI may include DCI format 0_1.

[0224] For example, if the first DCI indicates the association between the PUSCH and TCI states, the first DCI can be DCIformat 0_1.

[0225] In some embodiments, the first DCI may include DCI format 0_2.

[0226] For example, if the first DCI indicates the association between the PUSCH and TCI states, the first DCI could be DCIformat 0_2.

[0227] In some embodiments, the first DCI may further include: DCI format 1_1, DCI format 1_2; DCI format 1_1, DCI format 0_1; DCI format 1_1, DCI format 0_2; DCI format 1_2, DCI format 0_1; DCI format 1_2, DCI format 0_2; DCI format 0_1, DCI format 0_2; DCI format 1_1, DCI format 1_2, DCI format 0_1; DCI format 1_1, DCI format 1_2, DCI format 0_2; DCI format1_1, DCI format 0_1, DCI format 0_2; DCI format 1_2, DCI format 0_1, DCI format 0_2; DCI format 1_1, DCI format 1_2, DCI format 0_1, DCIformat 0_2.

[0228] This disclosure provides multiple forms of the first DCI, thereby indicating the relationship between different physical shared channels and TCI states, and thus enabling dynamic switching between the single TRP scheme and the SFN scheme, improving the transmission flexibility of the physical shared channel.

[0229] The terminal capability reporting method provided in this embodiment may further include: receiving second capability information. The second capability information is used to indicate that the terminal supports SFN scheme capability, or to indicate that the terminal supports only PDSCH SFN scheme capability.

[0230] In some embodiments, the network device may also receive second capability information sent by the terminal. This second capability information can be used to indicate that the terminal supports SFN scheme capabilities.

[0231] For example, the second capability information could be an indication that the terminal supports sfn-Scheme.

[0232] In some embodiments, the network device may receive second capability information sent by the terminal. This second capability information may be used to indicate that the terminal has only PDSCH SFN scheme capability.

[0233] For example, the second capability information could be an indication that the terminal supports sfn-Scheme-PDSCH-only.

[0234] It is understandable that the second capability can be a prerequisite capability for the terminal to support the first capability.

[0235] This disclosure can also report other terminal capabilities that are different from the first capability information, thereby improving the transmission flexibility of the physical shared channel based on the unified TCI state.

[0236] In the terminal capability reporting method provided in this embodiment, the second indication information is carried by the first MAC CE. The first MAC CE is used to indicate at least one set of TCI states, and the at least one set of TCI states corresponds to a code point in the TCI state field of the second DCI.

[0237] In some embodiments, the second indication information can be carried through a first MAC CE. This first MAC CE can be used to indicate at least one set of TCI states, for example, N sets of TCI states. Each set of TCI states can correspond to a codepoint in the TCI state field of the second DCI. In this case, further indication of the codepoint by the TCI state field of the second DCI is not required.

[0238] This disclosure provides a method for indicating at least one TCI state by carrying second indication information through a MAC CE, so that in the scenario of a unified TCI state, the ability of the terminal to dynamically switch between the single TRP scheme and the SFN scheme is reported, thereby improving the transmission flexibility of the physical shared channel based on the unified TCI state.

[0239] In the terminal capability reporting method provided in this embodiment, the second indication information is carried by the second MAC CE and the third DCI. The second MAC CE is used to indicate at least one set of TCI states corresponding to multiple code points in the TCI state field of the third DCI. The TCI state field in the third DCI is used to indicate one of the multiple code points.

[0240] In some embodiments, the second indication information can be carried through a second MAC CE and a third DCI. The second MAC CE can be used to indicate multiple sets of at least one TCI state, for example, multiple N sets of TCI states. It is understood that each of the N sets of TCI states corresponds to one codepoint. That is, the second MAC CE indicates the N sets of TCI states corresponding to multiple codepoints respectively. The TCI state field in the third DCI is used to indicate one codepoint among the multiple codepoints, thereby further indicating a specific one of the N sets of TCI states.

[0241] It is understandable that in the N sets of TCI states corresponding to multiple code points, the value of N can be the same or different.

[0242] This disclosure provides a method for indicating at least one TCI state by carrying second indication information through MAC CE and DIC, so as to improve the transmission flexibility of the physical shared channel in the case of unified TCI state by reporting whether the terminal supports the ability to dynamically switch between the single TRP scheme and the SFN scheme.

[0243] In the terminal capability reporting method provided in this embodiment, the physical shared channel includes at least one of the following: PUSCH; PDSCH.

[0244] In some embodiments, the physical shared channel includes PUSCH.

[0245] For example, the terminal can determine the association between PUSCH and at least one set of TCI states based on the TCI selection field of the first indication information.

[0246] In some embodiments, the physical shared channel includes the PDSCH.

[0247] For example, the terminal can determine the association between PDSCH and at least one set of TCI states based on the TCI selection field of the first indication information.

[0248] In some embodiments, the physical shared channel includes PUSCH and PDSCH.

[0249] For example, the terminal can determine the association between PUSCH and at least one set of TCI states, and the association between PDSCH and at least one set of TCI states, based on the TCI selection field of the first instruction information.

[0250] This disclosure is applicable to various physical shared channels so as to indicate the relationship between the corresponding physical shared channel and the TCI state through the first indication information, thereby realizing dynamic switching between the single TRP scheme and the SFN scheme and improving the transmission flexibility of the physical shared channel.

[0251] It should be noted that those skilled in the art will understand that the various implementation methods / embodiments described above in this disclosure can be used in conjunction with the foregoing embodiments, or they can be used independently. Whether used alone or in conjunction with the foregoing embodiments, the implementation principle is similar. In this disclosure, some embodiments are described as implementations used together. Of course, those skilled in the art will understand that such illustrative examples are not intended to limit the embodiments of this disclosure.

[0252] Based on the same concept, embodiments of this disclosure also provide a terminal capability reporting device or equipment.

[0253] It is understood that the terminal capability reporting device and equipment provided in this disclosure include hardware structures and / or software modules corresponding to each function in order to achieve the above-mentioned functions. In conjunction with the units and algorithm steps of the various examples disclosed in this disclosure, this disclosure can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed by hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the technical solutions of this disclosure.

[0254] Figure 4 This is a schematic diagram illustrating a terminal capability reporting device according to an exemplary embodiment. (Refer to...) Figure 4 The device 200 includes: a transmitting module 201, used to transmit first capability information, the first capability information being used to indicate whether the terminal supports the ability to dynamically switch between the single TRP scheme and the SFN scheme, wherein the terminal is configured with a unified TCI state.

[0255] This disclosure improves the transmission flexibility of the physical shared channel based on the unified TCI state by reporting whether the terminal supports the ability to dynamically switch between the single TRP scheme and the SFN scheme.

[0256] In some embodiments, the apparatus 200 further includes a processing module 202, configured to determine the TCI state used for physical shared channel transmission based on the TCI selection field in the first indication information or based on default rules; wherein, in response to the terminal supporting dynamic switching, the TCI selection field is used to determine to select one or more TCI states from the unified TCI states for physical shared channel transmission; or, in response to the terminal not supporting dynamic switching, the TCI selection field is used to determine to select multiple TCI states from the unified TCI states for physical shared channel transmission; or, in response to the terminal not supporting dynamic switching and the first indication information not including the TCI selection field, multiple TCI states from the unified TCI states are selected for physical shared channel transmission based on default rules.

[0257] In the case of a unified TCI state, this disclosure can determine the TCI state to be used through the TCI selection field in the first indication information or based on the default rules, adapting to the transmission of the physical shared channel under the single TRP scheme and the SFN scheme, thereby improving the transmission flexibility of the physical shared channel.

[0258] In some implementations, the Physical Shared Channel is configured for SFN-based transmission.

[0259] The physical shared channel disclosed herein can be configured for SFN-based transmission, thereby improving the transmission flexibility of the physical shared channel.

[0260] In some implementations, the processing module 202 is further configured to: perform dynamic switching between the single TRP scheme and the SFN scheme based on the TCI selection field in the first indication information.

[0261] This disclosure, based on the unified TCI state, allows for dynamic switching between the single TRP scheme and the SFN scheme via the TCI selection field in the first indication information, thereby improving the transmission flexibility of the physical shared channel.

[0262] In some embodiments, the apparatus further includes a receiving module 203 for receiving second indication information, the second indication information being used to determine a unified TCI state, the unified TCI state including at least one set of TCI states.

[0263] This disclosure applies to scenarios where the unified TCI state includes multiple TCI states. By reporting whether the terminal supports the ability to dynamically switch between the single TRP scheme and the SFN scheme, the transmission flexibility of the physical shared channel is improved in the case of unified TCI state.

[0264] In some implementations, a set of TCI states includes any one of the following: UL TCI state and / or DLTCI state; joint TCI state.

[0265] This disclosure provides a set of multiple representations of TCI state, so as to improve the transmission flexibility of physical shared channels in the case of unified TCI state by reporting whether the terminal supports the ability to dynamically switch between single TRP scheme and SFN scheme.

[0266] In some implementations, the receiving module 203 is further configured to: receive first indication information, the first indication information being carried by a first DCI.

[0267] In the case of a unified TCI state, this disclosure can indicate the relationship between the physical shared channel and the TCI state through the TCI selection field in the first indication information, thereby realizing dynamic switching between the single TRP scheme and the SFN scheme and improving the transmission flexibility of the physical shared channel.

[0268] In some implementations, the first DCI includes at least one of the following: DCI format 1_1; DCI format 1_2; DCI format 0_1; DCI format 0_2.

[0269] This disclosure provides multiple forms of the first DCI, thereby indicating the relationship between different physical shared channels and TCI states, and thus enabling dynamic switching between the single TRP scheme and the SFN scheme, improving the transmission flexibility of the physical shared channel.

[0270] In some implementations, the sending module 201 is further configured to: send second capability information, the second capability information being used to indicate that the terminal supports SFN scheme capability, or to indicate that the terminal supports Physical Downlink Shared Channel (PDSCH) SFN scheme capability only.

[0271] This disclosure can also report other terminal capabilities that are different from the first capability information, thereby improving the transmission flexibility of the physical shared channel based on the unified TCI state.

[0272] In some implementations, the second indication information is carried by a first MAC CE, which is used to indicate at least one set of TCI states, and the at least one set of TCI states corresponds to a code point in the TCI state field of the second DCI.

[0273] This disclosure provides a method for indicating at least one TCI state by carrying second indication information through a MAC CE, so that in the scenario of a unified TCI state, the ability of the terminal to dynamically switch between the single TRP scheme and the SFN scheme is reported, thereby improving the transmission flexibility of the physical shared channel based on the unified TCI state.

[0274] In some implementations, the second indication information is carried by a second MAC CE and a third DCI. The second MAC CE is used to indicate at least one set of TCI states corresponding to multiple code points in the TCI state field of the third DCI. The TCI state field in the third DCI is used to indicate one of the multiple code points.

[0275] This disclosure provides a method for indicating at least one TCI state by carrying second indication information through MAC CE and DIC, so as to improve the transmission flexibility of the physical shared channel in the case of unified TCI state by reporting whether the terminal supports the ability to dynamically switch between the single TRP scheme and the SFN scheme.

[0276] In some implementations, the physical shared channel includes at least one of the following: PUSCH; PDSCH.

[0277] This disclosure is applicable to various physical shared channels so as to indicate the relationship between the corresponding physical shared channel and the TCI state through the first indication information, thereby realizing dynamic switching between the single TRP scheme and the SFN scheme and improving the transmission flexibility of the physical shared channel.

[0278] Figure 5 This is a schematic diagram illustrating another terminal capability reporting device according to an exemplary embodiment. (Refer to...) Figure 5The device 300 includes: a receiving module 301 for receiving first capability information, the first capability information being used to indicate whether the terminal supports the ability to dynamically switch between the single TRP scheme and the SFN scheme, wherein the terminal is configured with a unified TCI state.

[0279] This disclosure improves the transmission flexibility of the physical shared channel based on the unified TCI state by reporting whether the terminal supports the ability to dynamically switch between the single TRP scheme and the SFN scheme.

[0280] In some embodiments, the apparatus 300 further includes a processing module 302, configured to indicate, through the TCI selection field in the first indication information or based on default rules, the TCI state to be used for physical shared channel transmission; wherein, in response to the terminal supporting dynamic switching, the TCI selection field is used to determine the selection of one or more TCI states from the unified TCI states for physical shared channel transmission; or, in response to the terminal not supporting dynamic switching, the TCI selection field is used to determine the selection of multiple TCI states from the unified TCI states for physical shared channel transmission; or, in response to the terminal not supporting dynamic switching and the first indication information not including the TCI selection field, the selection of multiple TCI states from the unified TCI states for physical shared channel transmission is determined based on default rules.

[0281] This disclosure, based on the unified TCI state, allows the TCI selection field in the first indication information to indicate the adopted TCI state, adapting to the transmission of the physical shared channel under the single TRP scheme and the SFN scheme, thereby improving the transmission flexibility of the physical shared channel.

[0282] In some implementations, the Physical Shared Channel is configured for SFN-based transmission.

[0283] The physical shared channel disclosed herein can be configured for SFN-based transmission, thereby improving the transmission flexibility of the physical shared channel.

[0284] In some implementations, the TCI selection field in the first indication information is also used to determine the dynamic switching between the terminal executing the singleTRP scheme and the SFN scheme.

[0285] This disclosure, based on the unified TCI state, allows for dynamic switching between the single TRP scheme and the SFN scheme via the TCI selection field in the first indication information, thereby improving the transmission flexibility of the physical shared channel.

[0286] In some embodiments, the apparatus further includes a transmitting module 303 for transmitting second indication information, the second indication information being used to determine a unified TCI state, the unified TCI state including at least one set of TCI states.

[0287] This disclosure applies to scenarios where the unified TCI state includes multiple TCI states. By reporting whether the terminal supports the ability to dynamically switch between the single TRP scheme and the SFN scheme, the transmission flexibility of the physical shared channel is improved in the case of unified TCI state.

[0288] In some implementations, a set of TCI states includes any one of the following: UL TCI state and / or DLTCI state; joint TCI state.

[0289] This disclosure provides a set of multiple representations of TCI state, so as to improve the transmission flexibility of physical shared channels in the case of unified TCI state by reporting whether the terminal supports the ability to dynamically switch between single TRP scheme and SFN scheme.

[0290] In some implementations, the sending module 303 is further configured to: send first indication information, the first indication information being carried by a first DCI.

[0291] In the case of a unified TCI state, this disclosure can indicate the relationship between the physical shared channel and the TCI state through the TCI selection field in the first indication information, thereby realizing dynamic switching between the single TRP scheme and the SFN scheme and improving the transmission flexibility of the physical shared channel.

[0292] In some implementations, the first DCI includes at least one of the following: DCI format 1_1; DCI format 1_2; DCI format 0_1; DCI format 0_2.

[0293] This disclosure provides multiple forms of the first DCI, thereby indicating the relationship between different physical shared channels and TCI states, and thus enabling dynamic switching between the single TRP scheme and the SFN scheme, improving the transmission flexibility of the physical shared channel.

[0294] In some embodiments, the receiving module 301 is further configured to: receive second capability information, the second capability information being used to indicate that the terminal supports SFN scheme capability, or to indicate that the terminal supports Physical Downlink Shared Channel (PDSCH) SFN scheme capability.

[0295] This disclosure can also report other terminal capabilities that are different from the first capability information, thereby improving the transmission flexibility of the physical shared channel based on the unified TCI state.

[0296] In some implementations, the second indication information can be carried by a first MAC CE, which is used to indicate at least one set of TCI states, and the at least one set of TCI states corresponds to a code point in the TCI state field of the second DCI.

[0297] This disclosure provides a method for indicating at least one TCI state by carrying second indication information through a MAC CE, so that in the scenario of a unified TCI state, the ability of the terminal to dynamically switch between the single TRP scheme and the SFN scheme is reported, thereby improving the transmission flexibility of the physical shared channel based on the unified TCI state.

[0298] In some implementations, the second indication information is carried by a second MAC CE and a third DCI. The second MAC CE is used to indicate at least one set of TCI states corresponding to multiple code points in the TCI state field of the third DCI. The TCI state field in the third DCI is used to indicate one of the multiple code points.

[0299] This disclosure provides a method for indicating at least one TCI state by carrying second indication information through MAC CE and DIC, so as to improve the transmission flexibility of the physical shared channel in the case of unified TCI state by reporting whether the terminal supports the ability to dynamically switch between the single TRP scheme and the SFN scheme.

[0300] In some implementations, the physical shared channel includes at least one of the following: PUSCH; PDSCH.

[0301] This disclosure is applicable to various physical shared channels so as to indicate the relationship between the corresponding physical shared channel and the TCI state through the first indication information, thereby realizing dynamic switching between the single TRP scheme and the SFN scheme and improving the transmission flexibility of the physical shared channel.

[0302] Regarding the apparatus in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments related to the method, and will not be elaborated upon here.

[0303] Figure 6 This is a schematic diagram illustrating a terminal capability reporting device according to an exemplary embodiment. For example, device 400 can be any terminal such as a mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet device, medical device, fitness equipment, personal digital assistant, etc.

[0304] Reference Figure 6 The device 400 may include one or more of the following components: processing component 402, memory 404, power component 406, multimedia component 408, audio component 410, input / output (I / O) interface 412, sensor component 414, and communication component 416.

[0305] Processing component 402 typically controls the overall operation of device 400, such as operations associated with display, telephone calls, data communication, camera operation, and recording. Processing component 402 may include one or more processors 420 to execute instructions to perform all or part of the steps of the methods described above. Furthermore, processing component 402 may include one or more modules to facilitate interaction between processing component 402 and other components. For example, processing component 402 may include a multimedia module to facilitate interaction between multimedia component 408 and processing component 402.

[0306] Memory 404 is configured to store various types of data to support the operation of device 400. Examples of this data include instructions for any application or method operating on device 400, contact data, phonebook data, messages, pictures, videos, etc. Memory 404 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0307] The power supply component 406 provides power to the various components of the device 400. The power supply component 406 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power to the device 400.

[0308] Multimedia component 408 includes a screen that provides an output interface between the device 400 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may sense not only the boundaries of the touch or swipe action but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 408 includes a front-facing camera and / or a rear-facing camera. When the device 400 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0309] Audio component 410 is configured to output and / or input audio signals. For example, audio component 410 includes a microphone (MIC) configured to receive external audio signals when device 400 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 404 or transmitted via communication component 416. In some embodiments, audio component 410 also includes a speaker for outputting audio signals.

[0310] I / O interface 412 provides an interface between processing component 402 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0311] Sensor assembly 414 includes one or more sensors for providing status assessments of various aspects of device 400. For example, sensor assembly 414 may detect the on / off state of device 400, the relative positioning of components such as the display and keypad of device 400, changes in the position of device 400 or a component of device 400, the presence or absence of user contact with device 400, the orientation or acceleration / deceleration of device 400, and temperature changes of device 400. Sensor assembly 414 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 414 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 414 may also include an accelerometer, a gyroscope, a magnetometer, a pressure sensor, or a temperature sensor.

[0312] Communication component 416 is configured to facilitate wired or wireless communication between device 400 and other devices. Device 400 can access wireless networks based on communication standards, such as WiFi, 2G, or 3G, or combinations thereof. In one exemplary embodiment, communication component 416 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 416 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0313] In an exemplary embodiment, device 400 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the methods described above.

[0314] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 404 including instructions, which can be executed by a processor 420 of device 400 to perform the above-described method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0315] Figure 7 This is a schematic diagram illustrating another terminal capability reporting device according to an exemplary embodiment. For example, device 500 may be provided as a base station or a server. (Refer to...) Figure 7 The device 500 includes a processing component 522, which further includes one or more processors, and memory resources represented by memory 532 for storing instructions executable by the processing component 522, such as application programs. The application programs stored in memory 532 may include one or more modules, each corresponding to a set of instructions. Furthermore, the processing component 522 is configured to execute instructions to perform the methods described above.

[0316] Device 500 may also include a power supply component 526 configured to perform power management of device 500, a wired or wireless network interface 550 configured to connect device 500 to a network, and an input / output (I / O) interface 558. Device 500 can operate on an operating system stored in memory 532, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, or similar.

[0317] This disclosure proposes that, under the indication of the unified TCI state of a single-DCI multi-TRP, when the physical shared channel is configured as the SFN method, the terminal capability is reported to determine whether it supports dynamic SFN, thereby improving the transmission flexibility of PDSCH / PUSCH based on the unified TCI state in multi-TRP.

[0318] It can be further understood that in this disclosure, "multiple" refers to two or more, and other quantifiers are similar. "And / or" describes the relationship between related objects, indicating that three relationships can exist; for example, A and / or B can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. The singular forms "a," "the," and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0319] It is further understood that the terms "first," "second," etc., are used to describe various types of information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another, and do not indicate a specific order or degree of importance. In fact, the expressions "first," "second," etc., are completely interchangeable. For example, without departing from the scope of this disclosure, first information can also be referred to as second information, and similarly, second information can also be referred to as first information.

[0320] It is further understood that the meaning of words such as “responding to” and “if” used in this disclosure depends on the context and the actual usage scenario. For example, the word “responding to” as used herein can be interpreted as “when” or “if” or “if”.

[0321] It is further understood that although operations are described in a specific order in the accompanying drawings in the embodiments of this disclosure, this should not be construed as requiring these operations to be performed in the specific order or serial order shown, or requiring all of the shown operations to be performed to obtain the desired result. In certain environments, multitasking and parallel processing may be advantageous.

[0322] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein.

[0323] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A terminal capability reporting method, characterized by, The method is performed by a terminal and includes: sending first capability information, the first capability information being used to indicate a capability of whether the terminal supports dynamic switching between a single transmission reception point (single TRP) scheme and a single frequency network (SFN) scheme, wherein the terminal is configured with a unified transmission configuration indication (unified TCI) state; determining, based on a TCI selection field in the first indication information or based on a default rule, a TCI state to be used for physical shared channel transmission; wherein, in response to the terminal supporting the dynamic switching, the TCI selection field is used to determine to select one or more sets of TCI states in the unified TCI state for physical shared channel transmission; or, in response to the terminal not supporting the dynamic switching, the TCI selection field is used to determine to select multiple sets of TCI states in the unified TCI state for physical shared channel transmission; or, in response to the terminal not supporting the dynamic switching and the TCI selection field not being included in the first indication information, multiple sets of TCI states in the unified TCI state are determined to be selected for physical shared channel transmission based on a default rule.

2. The method of claim 1, wherein, The physical shared channel is configured to be transmitted based on the SFN.

3. The method of claim 1, wherein, The method further includes: performing dynamic switching between the single TRP scheme and the SFN scheme based on the TCI selection field in the first indication information.

4. The method of claim 1, wherein, The method further includes: receiving second indication information, the second indication information being used to determine the unified TCI state, the unified TCI state including at least one set of TCI states.

5. The method of claim 4, wherein, The set of TCI states includes any of the following: an uplink (UL) TCI state and / or a downlink (DL) TCI state; a joint TCI state.

6. The method according to any one of claims 1 to 5, characterized in that, The method further includes: receiving first indication information, the first indication information being carried by a first downlink control information (DCI).

7. The method of claim 6, wherein, The first DCI includes at least one of the following: a DCI format 1_1; a DCI format 1_2; a DCI format 0_1; a DCI format 0_2.

8. The method according to any one of claims 1-5, characterized in that, The method further includes: sending second capability information, the second capability information being used to indicate that the terminal supports an SFN scheme capability or to indicate that the terminal only supports a physical downlink shared channel (PDSCH) SFN scheme capability.

9. The method according to claim 4 or 5, characterized in that, The second indication information is carried by a first medium access control (MAC) control element (CE), and the first MAC CE is used to indicate the at least one set of TCI states, the at least one set of TCI states corresponding to one code point of a TCI state field in a second DCI.

10. The method according to claim 4 or 5, characterized in that, The second indication information is carried by a second MAC CE and a third DCI, the second MAC CE is used to indicate that a plurality of code points of a TCI state field in the third DCI respectively correspond to at least one set of TCI states, and the TCI state field in the third DCI is used to indicate one code point in the plurality of code points.

11. The method according to any one of claims 1-5, characterized in that, The physical shared channel includes at least one of: A physical uplink shared channel (PUSCH); A PDSCH.

12. A terminal capability reporting method, characterized by, The method is performed by a network device and includes: Receiving first capability information, the first capability information being used to indicate a capability of whether a terminal supports dynamic switching between a single transmission reception point (single TRP) scheme and a single frequency network (SFN) scheme, wherein the terminal is configured with a unified transmission configuration indication state (unified TCI state); Determining a TCI state used for physical shared channel transmission through a TCI selection field in first indication information or based on a default rule; In response to the terminal supporting the dynamic switching, the TCI selection field is used to determine to select one or more sets of TCI states in the unified TCI state for physical shared channel transmission; or, In response to the terminal not supporting the dynamic switching, the TCI selection field is used to determine to select a plurality of sets of TCI states in the unified TCI state for physical shared channel transmission; or, In response to the terminal not supporting the dynamic switching and the TCI selection field not being included in the first indication information, a plurality of sets of TCI states in the unified TCI state are determined to be selected for physical shared channel transmission based on a default rule.

13. The method of claim 12, wherein, The physical shared channel is configured to be transmitted based on the SFN.

14. The method of claim 12, wherein, The TCI selection field in the first indication information is also used to determine that the terminal performs dynamic switching between the single TRP scheme and the SFN scheme.

15. The method of claim 12, wherein, The method further includes: Sending second indication information, the second indication information being used to determine the unified TCI state, and the unified TCI state including at least one set of TCI states.

16. The method of claim 15, wherein, The set of TCI states includes any one of: An uplink (UL) TCI state and / or a downlink (DL) TCI state; A joint TCI state.

17. The method according to any of claims 12-16, characterized by, The method further includes: Sending first indication information, the first indication information being carried by a first DCI.

18. The method of claim 17, wherein, The first DCI includes at least one of: A DCI format 1_1; A DCI format 1_2; A DCI format 0_1; A DCI format 0_2.

19. The method according to any one of claims 12-16, characterized by, The method further includes: Receiving second capability information, the second capability information being used to indicate that the terminal supports an SFN scheme capability or to indicate that the terminal only supports a physical downlink shared channel (PDSCH) SFN scheme capability.

20. The method of claim 15 or 16, wherein, The second indication information is carried by a first medium access control element (MAC CE), and the first MAC CE is used to indicate the at least one set of TCI states corresponding to one code point of a TCI state field in the second DCI.

21. The method of claim 15 or 16, wherein, The second indication information is carried by a second MAC CE and a third DCI, the second MAC CE is used to indicate at least one set of TCI states corresponding to a plurality of code points of a TCI state field in the third DCI, and the TCI state field in the third DCI is used to indicate one code point in the plurality of code points.

22. The method of any of claims 12-16, wherein, The physical shared channel includes at least one of: a physical uplink shared channel (PUSCH); a PDSCH.

23. A terminal capability reporting apparatus, characterized by comprising: The apparatus includes: a sending module configured to send first capability information, the first capability information being used to indicate a capability of whether the terminal supports dynamic switching between a single transmission and reception point (single TRP) scheme and a single frequency network (SFN) scheme, and the terminal is configured with a unified transmission configuration indication (unified TCI) state; a processing module configured to determine a TCI state used for physical shared channel transmission based on a TCI selection field in first indication information or based on a default rule; wherein, in response to the terminal supporting the dynamic switching, the TCI selection field is used to determine to select one or more sets of TCI states in the unified TCI state for physical shared channel transmission; or in response to the terminal not supporting the dynamic switching, the TCI selection field is used to determine to select a plurality of sets of TCI states in the unified TCI state for physical shared channel transmission; or in response to the terminal not supporting the dynamic switching and the TCI selection field not being included in the first indication information, a plurality of sets of TCI states in the unified TCI state are determined to be selected for physical shared channel transmission based on a default rule.

24. A terminal capability reporting apparatus, characterized by comprising: The apparatus includes: a receiving module configured to receive first capability information, the first capability information being used to indicate a capability of whether the terminal supports dynamic switching between a single transmission and reception point (single TRP) scheme and a single frequency network (SFN) scheme, and the terminal is configured with a unified transmission configuration indication (unified TCI) state; a processing module configured to determine a TCI state used for physical shared channel transmission based on a TCI selection field in first indication information or based on a default rule; wherein, in response to the terminal supporting the dynamic switching, the TCI selection field is used to determine to select one or more sets of TCI states in the unified TCI state for physical shared channel transmission; or in response to the terminal not supporting the dynamic switching, the TCI selection field is used to determine to select a plurality of sets of TCI states in the unified TCI state for physical shared channel transmission; or In response to the terminal not supporting the dynamic switching, and the TCI selection field not being included in the first indication information, a default rule is used to determine to select multiple sets of TCI states in the unified TCI state for transmission of a physical shared channel.

25. A terminal capability reporting device, characterized by comprising: Comprise: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to perform the method of any one of claims 1-11.

26. A terminal capability reporting device, characterized by comprising: Comprise: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to perform the method of any one of claims 12-22.

27. A non-transitory computer-readable storage medium, comprising: When the instructions in the storage medium are executed by the processor of the terminal, the terminal is enabled to perform the method of any one of claims 1-11.

28. A non-transitory computer-readable storage medium, comprising: When the instructions in the storage medium are executed by the processor of the network device, the network device is enabled to perform the method of any one of claims 12-22. When the instructions in the storage medium are executed by the processor of the terminal, the terminal is enabled to perform the method of any one of claims 1-11. When the instructions in the storage medium are executed by the processor of the network device, the network device is enabled to perform the method of any one of claims 12-22.

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