A beam indication method, apparatus, device and storage medium

Abstract

The present disclosure relates to a beam indication method, apparatus, device and storage medium. The method comprises: receiving beam indication information, the beam indication information being used to indicate a unified TCI state of a terminal, the unified TCI state comprising N sets of TCI states, wherein N is a positive integer; and determining a default TCI state used for physical shared channel transmission, the default TCI state being one or more sets of TCI states in the N sets of TCI states. The present disclosure determines one or more sets of TCI states from the multiple sets of TCI states indicated by the beam indication information as the default TCI state, and performs transmission of channels and / or signals based on the default TCI state, thereby improving the transmission reliability of channels and / or signals based on the TCI state.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of communication, and particularly relates to a beam indication method and device, equipment and storage medium. BACKGROUND

[0002] In a new radio (NR) network, especially when the communication frequency band is in frequency range 2, due to fast high-frequency channel attenuation, in order to ensure coverage, beam-based transmission and reception need to be used.

[0003] In a conventional method, for a physical downlink control channel (PDCCH) and / or a demodulation reference signal (DMRS) of the PDCCH, a physical downlink shared channel (PDSCH) and / or a DMRS of the PDSCH, a physical uplink control channel (PUCCH) and / or a DMRS of the PUCCH, a physical uplink shared channel (PUSCH) and / or a DMRS of the PUSCH, and / or a beam used in reference signal transmission, all are independently indicated. The reference signal can include a channel state information reference signal (CSI-RS), a sounding reference signal (SRS), a positioning reference signal (PRS), a time-frequency tracking reference signal (TRS), and the like. For example, the CSI-RS can include a CSI-RS for channel state information measurement, a CSI-RS for beam measurement, or a CSI-RS for path loss estimation. The SRS can include an SRS for codebook-based or non-codebook-based channel state information measurement, an SRS for beam measurement, or an SRS for positioning measurement.

[0004] Generally, in the conventional method, the PDCCH and / or the DMRS of the PDCCH, and the PUCCH and / or the DMRS of the PUCCH transmission are respectively activated by a medium access control control element (MAC CE) to indicate the corresponding beam, and the PDSCH and / or the DMRS of the PDSCH, the PUSCH and / or the DMRS of the PUSCH transmission are respectively indicated by the downlink control information (DCI) signaling to indicate the corresponding beam. Wherein, the beam can be indicated by the TCI state or the spatial relation information.

[0005] In some technologies, in order to reduce the signaling overhead, a unified transmission configuration indication (TCI) state is proposed. When there are multiple (multi) transmission and receiving points (TRPs) providing transmission services for the terminal, multiple sets of TCI states are configured correspondingly. In this case, the terminal cannot determine which set of TCI states in the multiple sets of TCI states to use for communication. SUMMARY

[0006] To overcome the problems in the related art, the present disclosure provides a beam indication method, apparatus, device and storage medium.

[0007] According to a first aspect of the embodiments of the present disclosure, a beam indication method is provided, the method is performed by a terminal, and includes: receiving beam indication information, the beam indication information being used to indicate a unified TCI state of the terminal, the unified TCI state including N sets of TCI states, wherein N is a positive integer; and determining a default TCI state used for physical shared channel transmission, the default TCI state being one or more sets of TCI states in the N sets of TCI states.

[0008] According to a second aspect of the embodiments of the present disclosure, a beam indication method is provided, the method is performed by a network device, and includes: sending beam indication information, the beam indication information being used to indicate a unified TCI state of the terminal, the unified TCI state including N sets of TCI states, wherein N is a positive integer; and determining a default TCI state used for physical shared channel transmission, the default TCI state being one or more sets of TCI states in the N sets of TCI states.

[0009] According to a third aspect of the embodiments of the present disclosure, a beam indication apparatus is provided, the apparatus comprising: a receiving module configured to receive beam indication information, the beam indication information being used to indicate a unified TCI state of a terminal, the unified TCI state comprising N sets of TCI states, wherein N is a positive integer; and a processing module configured to determine a default TCI state for physical shared channel transmission, the default TCI state being one or more sets of TCI states from the N sets of TCI states.

[0010] According to a fourth aspect of the embodiments of the present disclosure, a beam indication apparatus is provided, the apparatus comprising: a sending module configured to send beam indication information, the beam indication information being used to indicate a unified TCI state of a terminal, the unified TCI state comprising N sets of TCI states, wherein N is a positive integer; and a processing module configured to determine a default TCI state for physical shared channel transmission, the default TCI state being one or more sets of TCI states from the N sets of TCI states.

[0011] According to a fifth aspect of the embodiments of the present disclosure, a beam indication device is provided, comprising: a processor; a memory configured to store processor-executable instructions; and wherein the processor is configured to execute any one of the methods of the first aspect.

[0012] According to a sixth aspect of the embodiments of the present disclosure, a beam indication device is provided, comprising: a processor; a memory configured to store processor-executable instructions; and wherein the processor is configured to execute any one of the methods of the second aspect.

[0013] According to a seventh aspect of the embodiments of the present disclosure, a non-transitory computer-readable storage medium is provided, when instructions in the storage medium are executed by a processor of a terminal, the terminal is enabled to execute any one of the methods of the first aspect.

[0014] According to an eighth aspect of the embodiments of the present disclosure, a non-transitory computer-readable storage medium is provided, when instructions in the storage medium are executed by a processor of a network device, the network device is enabled to execute any one of the methods of the second aspect.

[0015] The technical solutions provided by the embodiments of the present disclosure can have the following beneficial effects: by determining one or more sets of TCI states from the multiple sets of TCI states indicated by the beam indication information as the default TCI state, and performing channel and / or signal transmission based on the default TCI state, the transmission reliability of the channel and / or signal based on the TCI state is improved.

[0016] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and are not limiting to the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which are incorporated herein and constitute part of this specification, illustrate implementations of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure.

[0018] Figure 1 is a schematic diagram of a wireless communication system according to an example embodiment.

[0019] Figure 2 is a flowchart of a beam indication method according to an example embodiment.

[0020] Figure 3 is another flowchart of a beam indication method according to an example embodiment.

[0021] Figure 4 is a schematic diagram of a beam indication apparatus according to an example embodiment.

[0022] Figure 5 is another schematic diagram of a beam indication apparatus according to an example embodiment.

[0023] Figure 6 is a schematic diagram of a beam indication device according to an example embodiment.

[0024] Figure 7 is another schematic diagram of a beam indication device according to an example embodiment. DETAILED DESCRIPTION

[0025] The example embodiments will be described in detail herein with reference to the accompanying drawings. The following description is presented in terms of the example embodiments, which represent the best understanding of the present disclosure. However, it should be appreciated that all features described herein could be combined with one another in a variety of ways and that the example embodiments described herein are merely representative.

[0026] The communication method according to the present disclosure can be applied to Figure 1 a wireless communication system 100 as shown. The network system can include a network device 110 and a terminal 120. It can be understood that, Figure 1 The wireless communication system as shown is merely illustrative. Other network devices can also be included in the wireless communication system, such as core network devices, wireless relay devices, and wireless backhaul devices, etc., which are not shown in Figure 1 The present embodiments do not limit the number of network devices and the number of terminals included in the wireless communication system.

[0027] It can be further understood that the wireless communication system of the embodiments of the present disclosure is a network that provides wireless communication functions. The wireless communication system can use 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 FDMA (SC-FDMA), Carrier Sense Multiple Access with Collision Avoidance, and the like. Depending on the capacity, rate, latency, and the like of different networks, the networks can be classified into 2G, 3G, 4G, or future evolution networks, such as the 5th Generation Wireless Communication System (5G) network, which can also be referred to as a New Radio (NR) network. For the convenience of description, the wireless communication network can be referred to as a network in the present disclosure.

[0028] Further, the network device 110 involved in the present disclosure can also be referred to as a wireless access network device. The 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 TRP, and the like, and can also be a gNB in an NR system, or can also be a component or a part of a device constituting a base station, and the like. When it is a vehicle-to-everything (V2X) communication system, the network device can also be a vehicle-mounted device. It should be understood that the specific technology and specific device form adopted by the network device in the embodiments of the present disclosure are not limited.

[0029] Further, the terminal 120 involved in the present disclosure, which can also be referred to as a terminal device, a user equipment (UE), a mobile station (MS), a mobile terminal (MT), etc., is a device that provides voice and / or data connectivity to a user, such as a handheld device having wireless connection capability, a vehicle-mounted device, etc. Currently, some examples of the terminal are a mobile phone, a pocket personal computer (PPC), a palm computer, a personal digital assistant (PDA), a notebook computer, a tablet computer, a wearable device, or a vehicle-mounted device, etc. In addition, when it is a vehicle-to-everything (V2X) communication system, the terminal device can also be a vehicle-mounted device. It should be understood that the present disclosure does not limit the specific technology and specific device form of the terminal.

[0030] In the present disclosure, the network device 110 and the terminal 120 can use any feasible wireless communication technology to realize mutual data transmission. Wherein, the transmission channel corresponding to the data transmitted by the network device 110 to the terminal 120 is called downlink (DL), and the transmission channel corresponding to the data transmitted by the terminal 120 to the network device 110 is called uplink (UL). It can be understood that the network device involved in the present disclosure 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, which is not limited by the present disclosure.

[0031] In NR, especially when the communication frequency band is in the frequency range 2, due to the rapid attenuation of high-frequency channels, in order to ensure the coverage, beam-based transmission and reception need to be used.

[0032] In release (Rel)-16, the beams used for transmission of PDCCH and / or DMRS of PDCCH, PDSCH and / or DMRS of PDSCH, PUCCH and / or DMRS of PUCCH, PUSCH and / or DMRS of PUSCH, and / or reference signals, etc. are all independently indicated. Wherein, the reference signal can include CSI-RS, SRS, PRS, TRS, etc. For example, the CSI-RS can include CSI-RS for channel state information measurement, CSI-RS for beam measurement, or CSI-RS for path loss estimation. The SRS can include SRS for codebook or non-codebook-based channel state information measurement, SRS for beam measurement, or SRS for positioning measurement.

[0033] Generally, in conventional methods, the PDCCH and / or DMRS of PDCCH, and the PUCCH and / or DMRS of PUCCH are activated by a beam through a MAC CE, and the PDSCH and / or DMRS of PDSCH, and the PUSCH and / or DMRS of PUSCH are respectively indicated by DCI signaling to correspondingly indicate a respective beam.

[0034] Rel-17 proposes to use unified TCI state to reduce signaling overhead. Currently, the unified TCI state can be separately indicated for uplink and downlink, such as DL TCI state, UL TCI state. The unified TCI state can also be jointly indicated for uplink and downlink, such as joint TCI state. For example, if the network device indicates a DL TCI state for downlink, the DL TCI state can be used for the terminal to transmit PDSCH and / or DMRS of PDSCH, PDCCH and / or DMRS of PDCCH, and at least part of CSI-RS. The at least part of CSI-RS can be aperiodic CSI-RS. For another example, if the network device indicates a UL TCI state for uplink, the UL TCI state can be used for the terminal to transmit PUSCH and / or DMRS of PUSCH, PUCCH and / or DMRS of PUCCH, and at least part of SRS. For another example, if the network device indicates a joint TCI state, the joint TCI state can be used for the transmission of channels and / or reference signals for uplink and downlink at the same time.

[0035] It can be understood that the TCI state can be used to indicate which receiving beams the terminal uses when receiving the PDCCH and / or the DMRS of the PDCCH, and / or the PDSCH and / or the DMRS of the PDSCH. For example, the receiving beam corresponding to the transmitting beam with which the terminal receives which synchronization signal and physical broadcast channel block (SSB) or CSI-RS sent by the network device. That is, the PDCCH and / or the DMRS of the PDCCH, and / or the PDSCH and / or the DMRS of the PDSCH, are quasi co-located with the SSB or the CSI-RS. The TCI can also be used to indicate which transmitting beams the terminal uses when transmitting the PUCCH and / or the DMRS of the PUCCH, and / or the PUSCH and / or the DMRS of the PUSCH. For example, the transmitting beam corresponding to the receiving beam with which the terminal receives which SSB or CSI-RS sent by the network device, or the transmitting beam corresponding to which SRS sent by the terminal. That is, the PUCCH and / or the DMRS of the PUCCH, and / or the PUSCH and / or the DMRS of the PUSCH, are quasi co-located with the SSB, the CSI-RS, or the SRS. Wherein, the beam refers to quasi co-location (QCL) type D.

[0036] Wherein, the above-mentioned beams can be indicated by the TCI state or the spatialrelationinfo. Wherein, the TCI state corresponding to the PDCCH contains the TCI state corresponding to the PDCCH and / or the DMRS of the PDCCH, that is, the TCI state is used for the reception of the PDCCH and / or the DMRS of the PDCCH. Similarly, the TCI state corresponding to the PDSCH contains the TCI state corresponding to the PDSCH and / or the DMRS of the PDSCH, that is, the TCI state is used for the reception of the PDSCH and / or the DMRS of the PDSCH; the TCI state or the spatialrelationinfo corresponding to the PUCCH contains the TCI state or the spatialrelationinfo corresponding to the PUCCH and / or the DMRS of the PUCCH, that is, the TCI state or the spatialrelationinfo is used for the transmission of the PUCCH and / or the DMRS of the PUCCH; the TCI state or the spatialrelationinfo corresponding to the PUSCH contains the TCI state or the spatialrelationinfo corresponding to the PUSCH and / or the DMRS of the PUSCH, that is, the TCI state or the spatialrelationinfo is used for the transmission of the PUSCH and / or the DMRS of the PUSCH.

[0037] However, currently, Rel-17 only considers unified TCI state for single-TRP. That is, only one set of unified TCI state is considered for beam indication. For example, it can include UL TCI state, DL TCI state and / or joint TCI state. When multi-TRP provides transmission services for the terminal, multiple sets of TCI states are configured. In this case, how to indicate multiple sets of unified TCI states is currently not determined.

[0038] For the case of multi-TRP, a method including single DCI is included. Corresponding PDCCH and / or DMRS of PDCCH, PDSCH and / or DMRS of PDSCH, PUCCH and / or DMRS of PUCCH, and PUSCH and / or DMRS of PUSCH, if part of the channel and / or the DMRS of the channel is configured as multi-TRP, and the other part of the channel and / or the DMRS of the channel is configured as single-TRP, when the unified TCI state indicates multiple sets of TCI states, for the channel configured with multi-TRP, dynamic multi-TRP and single-TRP switching may be needed. Then, how to determine which set or multiple sets of the multiple sets of TCI states corresponding to each channel is indicated by additional signaling.

[0039] In related solutions, PDCCH uses radio resource control (RRC) signaling to determine which set or multiple sets of TCI states are used for PDCCH reception for each control resource set (CORESET) or CORESET group. And PUCCH is also based on RRC signaling to determine which set or multiple sets of TCI states are used for PUCCH transmission for each PUCCH or PUCCH group. PDSCH is based on the first indication field of PDSCH in DCI to determine which set or multiple sets of TCI states are used for PDSCH reception for each PDSCH. PUSCH is based on the second indication field of PUSCH in DCI to determine which set or multiple sets of TCI states are used for PUSCH transmission for each PUSCH.

[0040] However, both the PDSCH and the PUSCH are indicated based on the indication field of the DCI, and when there is a case where the terminal cannot obtain the corresponding indication information based on the indication field of the DCI, how the terminal determines which one or more of the multiple sets of TCI states to use for receiving and transmitting the corresponding channel and / or signal has not been determined.

[0041] Therefore, the present disclosure provides a beam indication method, apparatus, device and storage medium. By determining one or more sets of TCI states from the multiple sets of TCI states indicated by the beam indication information as default TCI states, and performing transmission of the channel and / or signal based on the default TCI states, the transmission reliability of the channel and / or signal based on the TCI states is improved.

[0042] Figure 2 is a flowchart of a beam indication method according to an exemplary embodiment, as shown in Figure 2 The method is performed by a terminal and can include the following steps:

[0043] In step S11, beam indication information is received.

[0044] In some embodiments, the terminal can receive the beam indication information. For example, the terminal receives the beam indication information transmitted by the network device. The beam indication information is used to indicate the unified TCI state of the terminal, i.e., the unified TCI state or the indicated TCI state. The unified TCI state includes N sets of TCI states, where N is a positive integer.

[0045] It can be understood that the unified TCI state can be used for the corresponding TCI state when at least two of the channel and / or the corresponding DMRS, such as the DMRS of the PDCCH and / or the PDCCH, the DMRS of the PDSCH and / or the PDSCH, the DMRS of the PUCCH and / or the PUCCH, the DMRS of the PUSCH and / or the PUSCH, etc., and the signal, such as the SRS, the CSI-RS, the TRS, etc.

[0046] In some cases, N can be a positive integer greater than 1 or greater than 2.

[0047] In step S12, a default TCI state for physical shared channel transmission is determined.

[0048] In some embodiments, the terminal determines the default TCI state for the physical shared channel. The default TCI state is one or more of the N sets of TCI states.

[0049] For example, the terminal can determine a default TCI state utilized for reception of PDSCH and / or transmission of PUSCH based on the N sets of TCI states. The default TCI state is one or more of the N sets of TCI states.

[0050] It can be understood that the terminal can perform reception of PDSCH and / or transmission of PUSCH based on the determined default TCI state.

[0051] The present disclosure determines one or more sets of TCI states from the multiple sets of TCI states indicated by the beam indication information as the default TCI state, and performs transmission of channels and / or signals based on the default TCI state, thereby improving transmission reliability of channels and / or signals based on TCI states.

[0052] In the beam indication method provided by the embodiments of the present disclosure, determining the default TCI state for physical shared channel transmission in S12 can include: determining the default TCI state based on a transmission mode of the physical channel.

[0053] In some embodiments, the terminal can determine the corresponding default TCI state based on the transmission mode of the physical channel.

[0054] For example, the terminal can determine the corresponding default TCI state based on the transmission mode of PDSCH and / or PUSCH, or based on the transmission mode of PDCCH. In order for the terminal to perform reception of PDSCH and / or transmission of PUSCH based on the determined default TCI state.

[0055] The transmission mode of the physical channel can include multiple modes, such as a transmission mode related to frequency division multiplexing (FDM), a transmission mode related to time division multiplexing (TDM), a transmission mode related to space division multiplexing (SDM), a transmission mode related to single frequency network (SFN), and the like, which are not limited by the present disclosure.

[0056] The present disclosure can determine a suitable default TCI state according to the transmission mode of the physical channel, so as to perform transmission of channels and / or signals based on the default TCI state, thereby improving transmission reliability of channels and / or signals based on TCI states.

[0057] In the beam indication method provided by the embodiments of the present disclosure, the transmission mode of the physical shared channel is a specified transmission mode; the default TCI state is a plurality of TCI states in the N sets of TCI states; or, based on the case that the specified parameter is configured for the physical shared channel, the default TCI state is one or more sets of TCI states in the N sets of TCI states.

[0058] In some embodiments, in response to the transmission mode of the physical shared channel being a specified transmission mode, the default TCI state is a plurality of TCI states in the N sets of TCI states.

[0059] It can be understood that the physical shared channel mentioned in the embodiments of the present disclosure can include a PDSCH and / or a PUSCH.

[0060] For example, if N is 2, in response to the transmission mode of the physical shared channel being a specified transmission mode, the default TCI state directly includes two sets of TCI states. Of course, if N is more, the default TCI state can directly include all or part of the N sets of TCI states. Specifically, which part of the N sets of TCI states is included in the default TCI state can be pre-set by a protocol or determined based on a default rule, which is not limited by the present disclosure.

[0061] In some embodiments, in response to the transmission mode of the physical shared channel being a specified transmission mode, based on the case that the specified parameter is configured for the physical shared channel, the default TCI state is one or more sets of TCI states in the N sets of TCI states.

[0062] For example, the terminal can determine the default TCI state to be one set of TCI states in the N sets of TCI states or determine the default TCI state to be a plurality of sets of TCI states in the N sets of TCI states according to whether the specified parameter is configured for the physical shared channel.

[0063] The specified parameter can be, for example, an enabletwoDefaultTCIstate parameter. According to the configuration of the enabletwoDefaultTCIstate parameter, the default TCI state is determined to be one or multiple sets of TCI states in the N sets of TCI states. For example, if the enabletwoDefaultTCIstate is configured, the default TCI state is two or more sets of TCI states in the N sets of TCI states. If the enabletwoDefaultTCIstate is not configured, the default TCI state is one set of TCI states in the N sets of TCI states.

[0064] It can be understood that the specified transmission mode can be a partial transmission mode of a pre-configured physical channel. For example, it can be an FDM-related transmission mode, a TDM-related transmission mode, and the like.

[0065] The present disclosure determines a suitable default TCI state when the transmission mode of the physical shared channel is a specified transmission mode. In this way, the transmission of the channel and / or the signal is based on the default TCI state, thereby improving the transmission reliability of the channel and / or the signal based on the TCI state.

[0066] In the beam indication method provided by the embodiments of the present disclosure, in response to the transmission mode of the physical shared channel being a non-specified transmission mode, the default TCI state is one set of TCI states in the N sets of TCI states, or, based on the configuration of the specified parameter of the physical shared channel, the default TCI state is one or multiple sets of TCI states in the N sets of TCI states.

[0067] In some embodiments, in response to the transmission mode of the physical shared channel being a non-specified transmission mode, the default TCI state is one set of TCI states in the N sets of TCI states.

[0068] It can be understood that the non-specified transmission mode is a transmission mode other than the specified transmission mode, and it can also be understood that the physical shared channel is not configured with the specified transmission mode.

[0069] In some embodiments, in response to the transmission mode of the physical shared channel being a non-specified transmission mode, based on the configuration of the specified parameter of the physical shared channel, the default TCI state is one or multiple sets of TCI states in the N sets of TCI states.

[0070] For example, the terminal can determine the default TCI state as one of the N sets of TCI states or determine the default TCI state as multiple sets of TCI states from the N sets of TCI states according to whether a configuration parameter of the physical shared channel is specified.

[0071] The configuration parameter may, for example, be an enabletwoDefaultTCIstate parameter. For example, according to whether the enabletwoDefaultTCIstate parameter is configured, the default TCI state is determined as one or multiple sets of TCI states from the N sets of TCI states. For example, if the enabletwoDefaultTCIstate is configured, the default TCI state is two or more sets of TCI states from the N sets of TCI states. If the enabletwoDefaultTCIstate is not configured, the default TCI state is one set of TCI states from the N sets of TCI states.

[0072] The present disclosure determines a suitable default TCI state when the transmission mode of the physical shared channel is a non-specified transmission mode. In this way, the transmission of the channel and / or signal is based on the default TCI state, thereby improving the transmission reliability of the channel and / or signal based on the TCI state.

[0073] In the beam indication method provided by the embodiments of the present disclosure, in response to the transmission mode of the physical shared channel being an SFN scheme, at least one of the following may be included: in response to the terminal not supporting a dynamic SFN scheme, the default TCI state is multiple sets of TCI states from the N sets of TCI states; and in response to the terminal supporting a dynamic SFN scheme, the default TCI state is one or multiple sets of TCI states from the N sets of TCI states based on whether a configuration parameter of the physical shared channel is specified.

[0074] In some embodiments, in response to the transmission mode of the physical shared channel being an SFN scheme and the terminal not supporting a dynamic SFN scheme, the default TCI state can be multiple sets of TCI states from the N sets of TCI states. The terminal not supporting the dynamic SFN scheme can be understood as the terminal not supporting dynamic switching between the SFN scheme and single TRP transmission. That is, if the terminal is configured with the physical shared channel as an SFN transmission scheme, the physical shared channel cannot be dynamically switched from the SFN transmission to the single TRP transmission. It can be understood that the SFN transmission scheme is based on multiple sets of TCI states for transmission, while the single TRP is based on a single set of TCI states for transmission.

[0075] For example, the physical shared channel is configured to transmit in SFN scheme, and the terminal does not support dynamic SFN scheme. It can be determined that the default TCI state directly includes multiple sets of TCI states in the N sets of TCI states. For example, the default TCI state can directly include all or part of the N sets of TCI states. For example, the default TCI state can directly include two sets of TCI states.

[0076] In some embodiments, in response to the transmission mode of the physical shared channel being SFN scheme, and the terminal supporting dynamic SFN scheme, the default TCI state can be determined to be one or more sets of TCI states in the N sets of TCI states based on the case that the physical shared channel configuration specifies parameters.

[0077] For example, the physical shared channel is configured to transmit in SFN scheme, and the terminal supports dynamic SFN scheme. The terminal can determine the default TCI state to be one or more sets of TCI states in the N sets of TCI states based on the case that the physical shared channel configuration specifies parameters.

[0078] For example, the terminal can determine the default TCI state to be one set of TCI states in the N sets of TCI states or determine the default TCI state to be multiple sets of TCI states in the N sets of TCI states according to whether the physical shared channel specifies parameters.

[0079] For example, the specified parameters can be enabletwoDefaultTCIstate parameters. For example, according to the configuration of the enabletwoDefaultTCIstate parameters, the default TCI state is determined to be one set of TCI states or multiple sets of TCI states in the N sets of TCI states. For example, if enabletwoDefaultTCIstate is configured, the default TCI state is two or more sets of TCI states in the N sets of TCI states; if enabletwoDefaultTCIstate is not configured, the default TCI state is one set of TCI states in the N sets of TCI states.

[0080] In some embodiments, in response to the transmission mode of the physical shared channel being SFN scheme, the default TCI state can be multiple sets of TCI states in the N sets of TCI states in response to the terminal not supporting dynamic SFN scheme; and in response to the terminal supporting dynamic SFN scheme, the default TCI state can be one or more sets of TCI states in the N sets of TCI states based on the case that the physical shared channel configuration specifies parameters.

[0081] The disclosure determines a suitable default TCI state in the case that the transmission mode of the physical shared channel is the SFN scheme. In order to perform transmission of the channel and / or signal based on the default TCI state, thereby improving the transmission reliability of the channel and / or signal based on the TCI state.

[0082] In the beam indication method provided by the embodiments of the disclosure, in response to the transmission mode of the PDCCH being the SFN scheme, at least one of the following can be included: in response to the terminal not supporting the dynamic SFN scheme, the default TCI state is multiple sets of TCI states in the N sets of TCI states; in response to the terminal supporting the dynamic SFN scheme, based on the transmission mode of the physical shared channel, the default TCI state is one or more sets of TCI states in the N sets of TCI states.

[0083] In some embodiments, in response to the transmission mode of the PDCCH being the SFN scheme, and the terminal not supporting the dynamic SFN scheme, the default TCI state can be multiple sets of TCI states in the N sets of TCI states.

[0084] For example, the PDCCH is configured to transmit in the SFN scheme, and the terminal does not support the dynamic SFN scheme. It can be determined that the default TCI state directly includes multiple sets of TCI states in the N sets of TCI states. For example, the default TCI state can directly include all or part of the N sets of TCI states. For example, the default TCI state can directly include 2 sets of TCI states.

[0085] It can be understood that in this case, the PDSCH and / or PUSCH must be configured to have a transmission mode based on multiple sets of TCI, for example, any one of multiple different transmission modes included in the specified transmission mode.

[0086] In some embodiments, in response to the transmission mode of the PDCCH being the SFN scheme, and the terminal supporting the dynamic SFN scheme, the terminal can determine the default TCI state to be one or more sets of TCI states in the N sets of TCI states based on the transmission mode of the physical shared channel.

[0087] For example, the PDCCH is configured to transmit in the SFN scheme, and the terminal supports the dynamic SFN scheme. The terminal can determine the default TCI state to be one or more sets of TCI states in the N sets of TCI states based on the transmission mode of the PDSCH and / or PUSCH.

[0088] For example, the terminal can determine the default TCI state as one of the N sets of TCI states or determine the default TCI state as multiple sets of TCI states from the N sets of TCI states according to whether the PDSCH and / or PUSCH is configured with some specified transmission mode.

[0089] In some embodiments, in response to the transmission mode of the PDCCH being the SFN scheme, the default TCI state can be determined as multiple sets of TCI states from the N sets of TCI states in response to the terminal not supporting the dynamic SFN scheme, and the default TCI state can be determined as one or multiple sets of TCI states from the N sets of TCI states based on the transmission mode of the physical shared channel in response to the terminal supporting the dynamic SFN scheme.

[0090] The present disclosure determines a suitable default TCI state when the transmission mode of the PDCCH is the SFN scheme. This is to enable transmission of channels and / or signals based on the default TCI state, thereby improving the transmission reliability of channels and / or signals based on the TCI state.

[0091] In the beam indication method provided by the embodiments of the present disclosure, the method can further include: receiving RRC signaling, the RRC signaling indicating that any CORESET corresponds to multiple sets of TCI states from the N sets of TCI states.

[0092] In some embodiments, the terminal can further receive RRC signaling sent by the network device. The RRC signaling can be used to indicate that any one CORESET corresponds to multiple sets of TCI states from the N sets of TCI states. The multiple sets of TCI states can be all or part of the N sets of TCI states.

[0093] For example, the RRC signaling indicates that a certain CORESET corresponds to transmission based on multiple sets of TCI states from the N sets of TCI states, such as 2 sets of TCI states. Then, the default beam of the PDSCH and / or PUSCH scheduled or triggered by the DCI on the PDCCH in the CORESET can be determined as one or multiple sets of TCI states from the N sets of TCI states according to whether the terminal supports the SFN scheme.

[0094] It can be understood that the transmission mode of the PDCCH can be the SFN scheme. That is, the PDCCH is configured with the transmission mode of the SFN scheme.

[0095] The disclosure determines a suitable default TCI state in the case that the RRC indicates that a CORESET corresponds to multiple sets of TCI states in N sets of TCI states. In order to perform transmission of a channel and / or a signal based on the default TCI state, thereby improving the transmission reliability of the channel and / or the signal based on the TCI state.

[0096] In the beam indication method provided by the embodiments of the disclosure, in response to the transmission mode of the PDCCH being an SFN scheme, at least one of the following can be included: in response to the terminal not supporting the dynamic SFN scheme, the default TCI state is one set of TCI states in the N sets of TCI states; in response to the terminal supporting the dynamic SFN scheme, based on the transmission mode of the physical shared channel, the default TCI state is one or more sets of TCI states in the N sets of TCI states.

[0097] In some embodiments, in response to the transmission mode of the PDCCH being an SFN scheme, and the terminal not supporting the dynamic SFN scheme, the default TCI state can be one set of TCI states in the N sets of TCI states.

[0098] For example, the PDCCH is configured to transmit in the SFN scheme, and the terminal does not support the dynamic SFN scheme. It can be determined that the default TCI state directly includes one set of TCI states in the N sets of TCI states.

[0099] It can be understood that in this case, the PDSCH and / or PUSCH are not allowed to be configured with a transmission mode based on multiple sets of TCI, for example, not allowed to be configured with any one of multiple different transmission modes in the specified transmission mode.

[0100] In some embodiments, in response to the transmission mode of the PDCCH being an SFN scheme, and the terminal supporting the dynamic SFN scheme, the terminal can determine the default TCI state to be one or more sets of TCI states in the N sets of TCI states based on the transmission mode of the physical shared channel.

[0101] For example, the PDCCH is configured to transmit in the SFN scheme, and the terminal supports the dynamic SFN scheme. The terminal can determine the default TCI state to be one or more sets of TCI states in the N sets of TCI states based on the transmission mode of the PDSCH and / or PUSCH.

[0102] For example, the terminal can determine the default TCI state as one of the N sets of TCI states or determine the default TCI state as multiple sets of TCI states from the N sets of TCI states according to whether the PDSCH and / or the PUSCH is configured with some specified transmission mode.

[0103] In some embodiments, in response to the transmission mode of the PDCCH being the SFN scheme, the default TCI state can be determined as one of the N sets of TCI states in response to the terminal not supporting the dynamic SFN scheme, and the default TCI state can be determined as one or multiple sets of TCI states from the N sets of TCI states based on the transmission mode of the physical shared channel in response to the terminal supporting the dynamic SFN scheme.

[0104] The present disclosure determines a suitable default TCI state when the transmission mode of the PDCCH is the SFN scheme. In order to perform transmission of a channel and / or a signal based on the default TCI state, thereby improving the transmission reliability of the channel and / or the signal based on the TCI state.

[0105] In the beam indication method provided by the embodiments of the present disclosure, the method can further include: receiving RRC signaling, the RRC signaling indicating that any CORESET corresponds to one of the N sets of TCI states.

[0106] In some embodiments, the terminal can further receive RRC signaling sent by the network device. The RRC signaling can be used to indicate that any one of the CORESETs corresponds to one of the N sets of TCI states.

[0107] For example, the RRC signaling indicates that a certain CORESET corresponds to transmission based on one of the N sets of TCI states. Then, the default beam of the PDSCH and / or the PUSCH scheduled or triggered by the DCI on the PDCCH in the CORESET can be determined as one or multiple sets of TCI states from the N sets of TCI states according to whether the terminal supports the SFN scheme.

[0108] It can be understood that the transmission mode of the PDCCH can be the SFN scheme. That is, the PDCCH is configured with the transmission mode of the SFN scheme.

[0109] The present disclosure determines a suitable default TCI state when the RRC indicates that there is a CORESET corresponding to one of the N sets of TCI states. In order to perform transmission of a channel and / or a signal based on the default TCI state, thereby improving the transmission reliability of the channel and / or the signal based on the TCI state.

[0110] In the beam indication method provided by the embodiments of the present disclosure, in response to the terminal supporting the dynamic SFN scheme and the transmission mode of the physical shared channel being a specified transmission mode, the default TCI state is one or more of the N sets of TCI states.

[0111] In some embodiments, in response to the terminal supporting the dynamic SFN scheme and the transmission mode of the physical shared channel being a specified transmission mode, the default TCI state can be determined to be one or more of the N sets of TCI states.

[0112] For example, the terminal supports the dynamic SFN scheme, and the PDSCH and / or PUSCH is a specified transmission mode. The default TCI state can be determined to directly include one or more of the N sets of TCI states. For example, the default TCI state can directly include all, part, or a certain set of the N sets of TCI states. For example, the default TCI state can directly include two sets of TCI states or one set of TCI states.

[0113] In some embodiments, in response to the terminal supporting the dynamic SFN scheme and the transmission mode of the physical shared channel being a specified transmission mode, the default TCI state can be determined to be one or more of the N sets of TCI states based on the case that the physical shared channel is configured with a specified parameter.

[0114] For example, the terminal supports the dynamic SFN scheme, and the PDSCH and / or PUSCH is a specified transmission mode. The terminal can determine the default TCI state to be one or more of the N sets of TCI states based on the case that the physical shared channel is configured with a specified parameter.

[0115] For example, the terminal can determine the default TCI state to be one set of TCI states from the N sets of TCI states or determine the default TCI state to be multiple sets of TCI states from the N sets of TCI states according to whether the physical shared channel is configured with a specified parameter.

[0116] The specified parameter can be, for example, an enabletwoDefaultTCIstate parameter. According to the configuration of the enabletwoDefaultTCIstate parameter, the default TCI state is determined to be one of the N sets of TCI states or multiple sets of TCI states. For example, if the enabletwoDefaultTCIstate is configured, the default TCI state is two or more sets of TCI states of the N sets of TCI states. If the enabletwoDefaultTCIstate is not configured, the default TCI state is one set of TCI states of the N sets of TCI states.

[0117] The present disclosure determines a suitable default TCI state in the case that a terminal supports a dynamic SFN scheme and a transmission mode of a physical shared channel is a specified transmission mode. In this way, the transmission of a channel and / or a signal based on the default TCI state is implemented, thereby improving the transmission reliability of the channel and / or the signal based on the TCI state.

[0118] In the beam indication method provided by the embodiments of the present disclosure, in response to the terminal supporting the dynamic SFN scheme and the transmission mode of the physical shared channel being a non-specified transmission mode, the default TCI state is one set of TCI states of the N sets of TCI states. Alternatively, based on the case that a specified parameter is configured for the physical shared channel, the default TCI state is one or more sets of TCI states of the N sets of TCI states.

[0119] In some embodiments, in response to the terminal supporting the dynamic SFN scheme and the transmission mode of the physical shared channel being a non-specified transmission mode, the default TCI state can be determined to be one set of TCI states of the N sets of TCI states.

[0120] For example, the terminal supports the dynamic SFN scheme, and the PDSCH and / or the PUSCH are non-specified transmission modes. The default TCI state can be determined to directly include one set of TCI states of the N sets of TCI states.

[0121] In some embodiments, in response to the terminal supporting the dynamic SFN scheme and the transmission mode of the physical shared channel being a non-specified transmission mode, the default TCI state can be determined to be one or more sets of TCI states of the N sets of TCI states based on the case that a specified parameter is configured for the physical shared channel.

[0122] For example, the terminal supports a dynamic SFN scheme, and the PDSCH and / or the PUSCH is a non-specified transmission manner. The terminal can determine that the default TCI state is one or more of the N sets of TCI states based on whether the physical shared channel is configured with a specified parameter.

[0123] For example, the terminal can determine that the default TCI state is one set of TCI states from the N sets of TCI states, or determine that the default TCI state is multiple sets of TCI states from the N sets of TCI states, according to whether the physical shared channel is configured with a specified parameter.

[0124] For example, the specified parameter can be an enabletwoDefaultTCIstate parameter. For example, according to the configuration of the enabletwoDefaultTCIstate parameter, it is determined that the default TCI state is one set of TCI states or multiple sets of TCI states from the N sets of TCI states. For example, if the enabletwoDefaultTCIstate is configured, the default TCI state is two or more sets of TCI states from the N sets of TCI states; if the enabletwoDefaultTCIstate is not configured, the default TCI state is one set of TCI states from the N sets of TCI states. The present disclosure determines a suitable default TCI state in the case that the terminal supports a dynamic SFN scheme and the transmission manner of the physical shared channel is a non-specified transmission manner. In order to perform channel and / or signal transmission based on the default TCI state, thereby improving the transmission reliability of the channel and / or signal based on the TCI state.

[0125] In the beam indication method provided by the embodiments of the present disclosure, the specified transmission manner can include at least one of the following: an FDM scheme; a TDM scheme; an SDM scheme; and an SFN scheme.

[0126] In some embodiments, the specified transmission manner can include an FDM scheme.

[0127] For example, the specified transmission manner can include an FDM scheme A and / or an FDM scheme B.

[0128] The FDM scheme A indicates that the same transport block (TB) is transmitted through different TCI states on different frequency domain resources and the same time domain resource.

[0129] FDM scheme B indicates that the same TB is transmitted multiple times on the same time domain resource through different TCI states on different frequency domain resources.

[0130] In some embodiments, the specified transmission manner can include a TDM scheme.

[0131] For example, the specified transmission manner can include TDM scheme A, and / or repetitionNumber in PDSCH / PUSCH-TimeDomainResourceAllocation.

[0132] TDM scheme A indicates that the same TB is transmitted multiple times on the same frequency domain resource through different TCI states on different time domain resources, and the different time domain resources are in the same slot.

[0133] repetitionNumber in PDSCH / PUSCH-TimeDomainResourceAllocation indicates that the same TB is transmitted multiple times on the same frequency domain resource through different TCI states on different time domain resources, and the different time domain resources are in different slots.

[0134] In some embodiments, the specified transmission manner can include an SDM scheme.

[0135] SDM scheme indicates that the same TB is transmitted on different CDM group DMRS ports through different TCI states on the same frequency domain resource and the same time domain resource.

[0136] In some embodiments, the specified transmission manner can include an SFN scheme.

[0137] For example, the specified transmission manner can include SFN scheme A and / or SFN scheme B.

[0138] SFN scheme A indicates that the same TB is transmitted on the same CDM group DMRS port through different TCI states on the same frequency domain resource and the same time domain resource, and PDSCH / PUSCH has a quasi co-location (QCL) relationship with the parameters in the two TCI states.

[0139] The SFN scheme B indicates that the same TB is transmitted on the same CDM group of DMRS ports on the same frequency domain resource and the same time domain resource through different TCI states, and the PDSCH / PUSCH has a QCL relationship with the parameters in the two TCI states, except for part of the parameters in the second TCI state. The part of the parameters in the second TCI state can include a Doppler shift, a Doppler spread, and the like.

[0140] In some embodiments, the specified transmission mode can include: an FDM scheme, a TDM scheme; an FDM scheme, an SDM scheme; an FDM scheme, an SFN scheme; a TDM scheme, an SDM scheme; a TDM scheme, an SFN scheme; an SDM scheme, an SFN scheme; an FDM scheme, a TDM scheme, an SDM scheme; an FDM scheme, a TDM scheme, an SFN scheme; an FDM scheme, an SDM scheme, an SFN scheme; a TDM scheme, an SDM scheme, an SFN scheme; an FDM scheme, a TDM scheme, an SDM scheme, an SFN scheme.

[0141] The present disclosure provides multiple manifestations of the specified transmission mode to determine the appropriate default TCI state in the corresponding case. In order to transmit the channel and / or signal based on the default TCI state, thereby improving the transmission reliability of the channel and / or signal based on the TCI state.

[0142] In the beam indication method provided by the embodiments of the present disclosure, the default TCI state based on the specified parameter of the physical shared channel configuration can include: in response to the physical shared channel being configured with the specified parameter, the default TCI state is multiple sets of TCI states in the N sets of TCI states; and in response to the physical shared channel not being configured with the specified parameter, the default TCI state is one set of TCI states in the N sets of TCI states.

[0143] In some embodiments, in response to the physical shared channel being configured with the specified parameter, the default TCI state is multiple sets of TCI states in the N sets of TCI states.

[0144] For example, the PDSCH and / or PUSCH is configured with the specified parameter, such as the enabletwoDefaultTCIstate parameter, and it can be determined that the default TCI state is multiple sets of TCI states in the N sets of TCI states.

[0145] For example, if N is 2, in response to the PDSCH and / or PUSCH being configured with the enabletwoDefaultTCIstate parameter, the default TCI state directly includes 2 sets of TCI states. Of course, if N is more, the default TCI state can directly include all or part of the N sets of TCI states. Specifically, which part of the N sets of TCI states is included in the default TCI state can be pre-set by a protocol or determined based on a default rule, which is not limited by the present disclosure.

[0146] In some embodiments, in response to the physical shared channel not being configured with the specified parameter, the default TCI state is one set of TCI states in the N sets of TCI states.

[0147] For example, the PDSCH and / or PUSCH are not configured with the specified parameter, such as not being configured with the enabletwoDefaultTCIstate parameter, and it can be determined that the default TCI state is one set of TCI states in the N sets of TCI states.

[0148] The present disclosure can determine the appropriate default TCI state according to different cases of the physical shared channel being configured with the specified parameter. In order to perform transmission of the channel and / or signal based on the default TCI state, thereby improving the transmission reliability of the channel and / or signal based on the TCI state.

[0149] In the beam indication method provided by the embodiments of the present disclosure, one set of TCI states is the first set of TCI states in the unified TCI states.

[0150] In some embodiments, one set of TCI states can be the first set of TCI states in the unified TCI states.

[0151] For example, the first set of TCI states can be the TCI state corresponding to the smallest TCI state identifier in the unified TCI states of the beam indication information. The identifier can be an identity (ID) identifier or an index.

[0152] For example, the first set of TCI states is the TCI state corresponding to the smallest TCI state ID.

[0153] For another example, the first set of TCI states can be the TCI state with the lowest bit position in the unified TCI states of the beam indication information.

[0154] For example, the first set of TCI states is the TCI state corresponding to the lowest bit position in the unified TCI states of the beam indication information.

[0155] The present disclosure provides specific forms of a default TCI state being a set of TCI states, so as to perform transmission of a channel and / or a signal based on the default TCI state, thereby improving transmission reliability of the channel and / or the signal based on the TCI state.

[0156] In the beam indication method provided by the embodiments of the present disclosure, the default TCI state is determined in response to at least one of the following conditions being met: the first DCI does not include the correspondence indication field for indicating the correspondence between the physical shared channel and the N sets of TCI states; the physical shared channel is transmitted before the terminal receives the second DCI including the correspondence indication field; and a time offset between the third DCI and the PDSCH is less than an offset threshold, where the third DCI is a DCI scheduling the PDSCH.

[0157] In some embodiments, when the first DCI does not include the correspondence indication field for indicating the correspondence between the physical shared channel and the N sets of TCI states, the terminal can determine the default TCI state.

[0158] For example, when the first DCI received by the terminal does not include the correspondence indication field for indicating the correspondence between the PDSCH and / or PUSCH and the N sets of TCI states, the terminal cannot obtain the correspondence between the physical shared channel and the N sets of TCI states due to the absence of the correspondence indication field in the first DCI received by the terminal. In this case, the terminal can determine the default TCI state so as to perform PDSCH and / or PUSCH transmission based on the default TCI state.

[0159] In some embodiments, when the physical shared channel is transmitted before the terminal receives the second DCI including the correspondence indication field, the terminal can determine the default TCI state.

[0160] For example, when the terminal needs to perform PDSCH and / or PUSCH transmission before receiving the second DCI including the correspondence indication field, the terminal cannot obtain the correspondence between the physical shared channel and the N sets of TCI states due to the absence of the second DCI including the correspondence indication field. In this case, the terminal can determine the default TCI state so as to perform PDSCH and / or PUSCH transmission based on the default TCI state.

[0161] In some embodiments, when the time offset between the third DCI and the PDSCH is less than the offset threshold, the terminal can determine the default TCI state, where the third DCI is a DCI scheduling the PDSCH.

[0162] For example, the terminal receives the third DCI, but since the time offset between the third DCI and the PDSCH is less than the offset threshold, the terminal has not completed decoding of the third DCI, and thus cannot obtain the correspondence between the physical shared channel and the N sets of TCI states. In this case, the terminal can determine a default TCI state, so as to perform PDSCH and / or PUSCH transmission based on the default TCI state. The time length or time period corresponding to the offset is mainly used for the terminal to decode the DCI.

[0163] It can be understood that the above-mentioned various cases can be considered as the terminal being unable to determine the correspondence between the PDSCH and / or PUSCH and the N sets of TCI states based on the correspondence indication field of the DCI.

[0164] In some embodiments, when the first DCI does not include the correspondence indication field for indicating the correspondence between the physical shared channel and the N sets of TCI states, and when the physical shared channel is transmitted before the terminal receives the second DCI including the correspondence indication field, the terminal can determine a default TCI state.

[0165] In some embodiments, when the first DCI does not include the correspondence indication field for indicating the correspondence between the physical shared channel and the N sets of TCI states, and when the time offset between the third DCI and the PDSCH is less than the offset threshold, the terminal can determine a default TCI state.

[0166] In some embodiments, when the physical shared channel is transmitted before the terminal receives the second DCI including the correspondence indication field, and when the time offset between the third DCI and the PDSCH is less than the offset threshold, the terminal can determine a default TCI state.

[0167] In some embodiments, when the first DCI does not include the correspondence indication field for indicating the correspondence between the physical shared channel and the N sets of TCI states, and when the physical shared channel is transmitted before the terminal receives the second DCI including the correspondence indication field, and when the time offset between the third DCI and the PDSCH is less than the offset threshold, the terminal can determine a default TCI state.

[0168] It should be understood that the above-mentioned first DCI, second DCI and third DCI can be the same, partially the same or all different, and the present disclosure is not limited.

[0169] The disclosure can determine a suitable default TCI state in a case where the terminal cannot determine the TCI state based on the DCI. In order to perform transmission of a channel and / or a signal based on the default TCI state, thereby improving transmission reliability of the channel and / or the signal based on the TCI state.

[0170] The beam indication method provided by the embodiments of the disclosure can include: joint TCI state; or at least one of UL TCI state and DL TCI state.

[0171] In some embodiments, each set of TCI states can include joint TCI state.

[0172] In some embodiments, each set of TCI states can include UL TCI state and / or DL TCI state.

[0173] In the disclosure, in different unified TCI state indication scenarios, transmission of a channel and / or a signal can be performed based on a default TCI state, thereby improving transmission reliability of the channel and / or the signal based on the TCI state.

[0174] In the beam indication method provided by the embodiments of the disclosure, the beam indication information is carried by a MAC CE, and the MAC CE is used to indicate N sets of TCI states, and the N sets of TCI states correspond to one code point of a TCI indication field in the fourth DCI.

[0175] In some embodiments, the beam indication information can be carried by a MAC CE. The MAC CE can be used to indicate N sets of TCI states. The N sets of TCI states can correspond to one code point in the TCI indication field in the fourth DCI. In this case, the TCI indication field of the fourth DCI does not need to further indicate the code point.

[0176] The disclosure provides a way of carrying beam indication information by a MAC CE to indicate N sets of TCI states. In order to determine a suitable default TCI state from the N sets of TCI states. In order to perform transmission of a channel and / or a signal based on the default TCI state, thereby improving transmission reliability of the channel and / or the signal based on the TCI state.

[0177] In the beam indication method provided by the embodiments of the disclosure, the beam indication information is carried by a MAC CE and a fifth DCI, the MAC CE is used to indicate N sets of TCI states corresponding to a plurality of code points of a TCI indication field in the fifth DCI, and the TCI indication field in the fifth DCI is used to indicate one code point in the plurality of code points.

[0178] In some embodiments, the beam indication information can be carried by a MAC CE and a fifth DCI. The MAC CE can be used to indicate a plurality of N sets of TCI states. It can be understood that each of the N sets of TCI states corresponds to a codepoint. That is, the MAC CE indicates a plurality of codepoints respectively corresponding to a plurality of N sets of TCI states. The TCI indication field in the fifth DCI is used to indicate one of the plurality of codepoints. To further indicate a specific one of the plurality of N sets of TCI states.

[0179] It can be understood that the N values in the plurality of N sets of TCI states respectively corresponding to a plurality of codepoints can be the same or different.

[0180] The present disclosure provides a way of carrying beam indication information by a MAC CE and a DCI to indicate N sets of TCI states. In order to determine the appropriate default TCI state from the N sets of TCI states. In order to transmit channels and / or signals based on the default TCI state, thereby improving the transmission reliability of channels and / or signals based on the TCI state.

[0181] Based on the same concept, the present disclosure also provides a beam indication method performed by a network device.

[0182] Figure 3 Another beam indication method flowchart according to an exemplary embodiment is shown in FIG. 8. As shown in FIG. 8, the method is performed by a network device and can include the following steps: Figure 3

[0183] In step S21, beam indication information is transmitted.

[0184] In some embodiments, the network device can transmit beam indication information. For example, the network device transmits the beam indication information to the terminal. The beam indication information is used to indicate the unified TCI state of the terminal, i.e., the unified TCI state or the indicated TCI state. The unified TCI state includes N sets of TCI states, where N is a positive integer.

[0185] It can be understood that the unified TCI state can be used as the corresponding TCI state for at least two of the channels and / or corresponding DMRS, such as PDCCH and / or DMRS of PDCCH, PDSCH and / or DMRS of PDSCH, PUCCH and / or DMRS of PUCCH, PUSCH and / or DMRS of PUSCH, etc., and for signals, such as SRS, CSI-RS, TRS, etc.

[0186] ​In some cases, N can be a positive integer greater than 1 or greater than 2.

[0187] In step S22, a default TCI state for physical shared channel transmission is determined.

[0188] In some embodiments, the network device determines a default TCI state for a physical shared channel. The default TCI state is one or more of the N sets of TCI states.

[0189] For example, the network device can determine a default TCI state to be used when transmitting a PDSCH and / or receiving a PUSCH based on the N sets of TCI states. The default TCI state is one or more of the N sets of TCI states.

[0190] It can be understood that the network device can transmit a PDSCH and / or receive a PUSCH based on the determined default TCI state.

[0191] The present disclosure improves the reliability of channel and / or signal transmission based on TCI states by determining one or more sets of TCI states from the multiple sets of TCI states indicated by the beam indication information as default TCI states and transmitting channels and / or signals based on the default TCI states.

[0192] In the beam indication method provided by the embodiments of the present disclosure, determining a default TCI state for physical shared channel transmission in S22 can include determining the default TCI state based on the transmission mode of the physical channel.

[0193] In some embodiments, the network device can determine the corresponding default TCI state based on the transmission mode of the physical channel.

[0194] For example, the network device can determine the corresponding default TCI state based on the transmission mode of a PDSCH and / or a PUSCH, or based on the transmission mode of a PDCCH. In order for the network device to transmit a PDSCH and / or receive a PUSCH based on the determined default TCI state.

[0195] The transmission mode of the physical channel can include various modes, such as a FDM-related transmission mode, a TDM-related transmission mode, an SDM-related transmission mode, an SFN-related transmission mode, and the like, which are not limited by the present disclosure.

[0196] The present disclosure can determine a suitable default TCI state according to the transmission mode of the physical channel, so as to transmit channels and / or signals based on the default TCI state, thereby improving the reliability of channel and / or signal transmission based on TCI states.

[0197] In the beam indication method provided by the embodiments of the present disclosure, the transmission mode of the physical shared channel is a specified transmission mode; the default TCI state is a plurality of TCI states in the N sets of TCI states; or, based on the case that the specified parameter is configured for the physical shared channel, the default TCI state is one or more sets of TCI states in the N sets of TCI states.

[0198] In some embodiments, in response to the transmission mode of the physical shared channel being a specified transmission mode, the default TCI state is a plurality of TCI states in the N sets of TCI states.

[0199] For example, if N is 2, in response to the transmission mode of the physical shared channel being a specified transmission mode, the default TCI state directly includes two sets of TCI states. Of course, if N is more, the default TCI state can directly include all or part of the N sets of TCI states. Specifically, which part of the N sets of TCI states is included in the default TCI state can be pre-set by a protocol or determined based on a default rule, which is not limited by the present disclosure.

[0200] In some embodiments, in response to the transmission mode of the physical shared channel being a specified transmission mode, based on the case that the specified parameter is configured for the physical shared channel, the default TCI state is one or more sets of TCI states in the N sets of TCI states.

[0201] For example, the network device can determine the default TCI state to be one set of TCI states in the N sets of TCI states or determine the default TCI state to be a plurality of sets of TCI states in the N sets of TCI states according to whether the specified parameter is configured for the physical shared channel.

[0202] For example, the specified parameter can be an enabletwoDefaultTCIstate parameter. For example, according to the configuration of the enabletwoDefaultTCIstate parameter, the default TCI state is determined to be one set of TCI states or a plurality of sets of TCI states in the N sets of TCI states. For example, if the enabletwoDefaultTCIstate is configured, the default TCI state is two or more sets of TCI states in the N sets of TCI states; if the enabletwoDefaultTCIstate is not configured, the default TCI state is one set of TCI states in the N sets of TCI states.

[0203] It can be understood that the specified transmission manner can be a part of the transmission manner of the pre-configured physical channel. For example, it can be an FDM related transmission manner, a TDM related transmission manner, and the like.

[0204] The present disclosure determines a suitable default TCI state when the transmission manner of the physical shared channel is the specified transmission manner. In order to perform transmission of the channel and / or signal based on the default TCI state, thereby improving the transmission reliability of the channel and / or signal based on the TCI state.

[0205] In the beam indication method provided by the embodiments of the present disclosure, in response to the transmission manner of the physical shared channel being a non-specified transmission manner, the default TCI state being one of the N sets of TCI states, or the physical shared channel being configured with the specified parameter, the default TCI state is one or more of the N sets of TCI states.

[0206] In some embodiments, in response to the transmission manner of the physical shared channel being a non-specified transmission manner, the default TCI state is one of the N sets of TCI states.

[0207] It can be understood that the non-specified transmission manner is a transmission manner other than the specified transmission manner, and it can also be understood that the physical shared channel is not configured with the specified transmission manner.

[0208] In some embodiments, in response to the transmission manner of the physical shared channel being a non-specified transmission manner, and the physical shared channel being configured with the specified parameter, the default TCI state is one or more of the N sets of TCI states.

[0209] For example, the network device can determine the default TCI state to be one of the N sets of TCI states or to be multiple sets of TCI states in the N sets of TCI states according to whether the physical shared channel is configured with the specified parameter.

[0210] The specified parameter can be, for example, an enabletwoDefaultTCIstate parameter. According to the configuration of the enabletwoDefaultTCIstate parameter, the default TCI state is determined to be one of the N sets of TCI states or multiple sets of TCI states. For example, if the enabletwoDefaultTCIstate is configured, the default TCI state is two or multiple sets of TCI states of the N sets of TCI states. If the enabletwoDefaultTCIstate is not configured, the default TCI state is one set of TCI states of the N sets of TCI states.

[0211] The present disclosure determines a suitable default TCI state when the transmission mode of the physical shared channel is a non-specified transmission mode. In this way, the transmission of the channel and / or signal based on the default TCI state is realized, thereby improving the transmission reliability of the channel and / or signal based on the TCI state.

[0212] In the beam indication method provided by the embodiments of the present disclosure, in response to the transmission mode of the physical shared channel being an SFN scheme, at least one of the following can be included: in response to the terminal not supporting the dynamic SFN scheme, the default TCI state is multiple sets of TCI states of the N sets of TCI states; and in response to the terminal supporting the dynamic SFN scheme, based on the configuration of the specified parameter of the physical shared channel, the default TCI state is one or multiple sets of TCI states of the N sets of TCI states.

[0213] In some embodiments, in response to the transmission mode of the physical shared channel being an SFN scheme, and the terminal not supporting the dynamic SFN scheme, the default TCI state can be multiple sets of TCI states of the N sets of TCI states. The terminal not supporting the dynamic SFN scheme can be understood as the terminal not supporting the dynamic switching between the SFN scheme and the single TRP transmission. That is, if the terminal is configured to use the SFN transmission scheme for the physical shared channel, the physical shared channel cannot be dynamically switched from the SFN transmission to the single TRP transmission. It can be understood that the SFN transmission scheme is based on multiple sets of TCI states for transmission, while the single TRP is based on a single set of TCI states for transmission.

[0214] For example, the physical shared channel is configured with the SFN scheme for transmission, and the terminal does not support the dynamic SFN scheme. It can be determined that the default TCI state directly includes multiple sets of TCI states in the N sets of TCI states. For example, the default TCI state can directly include all or part of the N sets of TCI states. For example, the default TCI state can directly include two sets of TCI states.

[0215] In some embodiments, in response to the transmission mode of the physical shared channel being the SFN scheme, and the terminal supporting the dynamic SFN scheme, the default TCI state can be determined to be one or more sets of TCI states in the N sets of TCI states based on the case that the physical shared channel configuration specifies parameters.

[0216] For example, the physical shared channel is configured with the SFN scheme for transmission, and the terminal supports the dynamic SFN scheme. The network device can determine the default TCI state to be one or more sets of TCI states in the N sets of TCI states based on the case that the physical shared channel configuration specifies parameters.

[0217] For example, the network device can determine the default TCI state to be one set of TCI states in the N sets of TCI states or determine the default TCI state to be multiple sets of TCI states in the N sets of TCI states according to whether the physical shared channel specifies parameters.

[0218] For example, the specified parameters can be the enabletwoDefaultTCIstate parameter. For example, according to the configuration of the enabletwoDefaultTCIstate parameter, the default TCI state is determined to be one set of TCI states or multiple sets of TCI states in the N sets of TCI states. For example, if the enabletwoDefaultTCIstate is configured, the default TCI state is two or more sets of TCI states in the N sets of TCI states; if the enabletwoDefaultTCIstate is not configured, the default TCI state is one set of TCI states in the N sets of TCI states.

[0219] In some embodiments, in response to the transmission mode of the physical shared channel being the SFN scheme, the default TCI state can be multiple sets of TCI states in the N sets of TCI states in response to the terminal not supporting the dynamic SFN scheme; and the default TCI state can be one or more sets of TCI states in the N sets of TCI states in response to the terminal supporting the dynamic SFN scheme based on the case that the physical shared channel configuration specifies parameters.

[0220] The disclosure determines a suitable default TCI state in the case of SFN scheme of the transmission mode of the physical shared channel. In order to perform transmission of the channel and / or signal based on the default TCI state, thereby improving the transmission reliability of the channel and / or signal based on the TCI state.

[0221] In the beam indication method provided by the embodiments of the disclosure, in response to the transmission mode of the PDCCH being the SFN scheme, at least one of the following can be included: in response to the terminal not supporting the dynamic SFN scheme, the default TCI state is multiple sets of TCI states in the N sets of TCI states; in response to the terminal supporting the dynamic SFN scheme, based on the transmission mode of the physical shared channel, the default TCI state is one or more sets of TCI states in the N sets of TCI states.

[0222] In some embodiments, in response to the transmission mode of the PDCCH being the SFN scheme, and the terminal not supporting the dynamic SFN scheme, the default TCI state can be multiple sets of TCI states in the N sets of TCI states.

[0223] For example, the PDCCH is configured to transmit in the SFN scheme, and the terminal does not support the dynamic SFN scheme. It can be determined that the default TCI state directly includes multiple sets of TCI states in the N sets of TCI states. For example, the default TCI state can directly include all or part of the N sets of TCI states. For example, the default TCI state can directly include 2 sets of TCI states.

[0224] It can be understood that in this case, the PDSCH and / or PUSCH must be configured to have a transmission mode based on multiple sets of TCI, for example, any one of multiple different transmission modes included in the specified transmission mode.

[0225] In some embodiments, in response to the transmission mode of the PDCCH being the SFN scheme, and the terminal supporting the dynamic SFN scheme, the network device can determine the default TCI state to be one or more sets of TCI states in the N sets of TCI states based on the transmission mode of the physical shared channel.

[0226] For example, the PDCCH is configured to transmit in the SFN scheme, and the terminal supports the dynamic SFN scheme. The network device can determine the default TCI state to be one or more sets of TCI states in the N sets of TCI states based on the transmission mode of the PDSCH and / or PUSCH.

[0227] For example, the network device can determine the default TCI state as one of the N sets of TCI states or determine the default TCI state as multiple sets of TCI states from the N sets of TCI states according to whether the PDSCH and / or PUSCH is configured with some specified transmission mode.

[0228] In some embodiments, in response to the transmission mode of the PDCCH being the SFN scheme, the default TCI state can be determined as multiple sets of TCI states from the N sets of TCI states in response to the terminal not supporting the dynamic SFN scheme, and the default TCI state can be determined as one or multiple sets of TCI states from the N sets of TCI states based on the transmission mode of the physical shared channel in response to the terminal supporting the dynamic SFN scheme.

[0229] The present disclosure determines the appropriate default TCI state when the transmission mode of the PDCCH is the SFN scheme. In this way, the transmission of channels and / or signals based on the default TCI state is enabled, thereby improving the transmission reliability of channels and / or signals based on the TCI state.

[0230] In the beam indication method provided by the embodiments of the present disclosure, the method can further include: sending RRC signaling, the RRC signaling indicating that any CORESET corresponds to multiple sets of TCI states from the N sets of TCI states.

[0231] In some embodiments, the network device can further send RRC signaling to the terminal. The RRC signaling can be used to indicate that any one CORESET corresponds to multiple sets of TCI states from the N sets of TCI states. The multiple sets of TCI states can be all or part of the N sets of TCI states.

[0232] For example, the RRC signaling indicates that a certain CORESET corresponds to transmission based on multiple sets of TCI states from the N sets of TCI states, such as 2 sets of TCI states. Then, the default beam of the PDSCH and / or PUSCH scheduled or triggered by the DCI on the PDCCH in the CORESET can be determined as one or multiple sets of TCI states from the N sets of TCI states according to whether the terminal supports the SFN scheme.

[0233] It can be understood that the transmission mode of the PDCCH can be the SFN scheme. That is, the PDCCH is configured with the transmission mode of the SFN scheme.

[0234] The disclosure determines a suitable default TCI state in the case that the RRC indicates that a CORESET corresponds to multiple sets of TCI states in N sets of TCI states. In order to perform transmission of a channel and / or a signal based on the default TCI state, thereby improving the transmission reliability of the channel and / or the signal based on the TCI state.

[0235] In the beam indication method provided by the embodiments of the disclosure, in response to the transmission mode of the PDCCH being an SFN scheme, at least one of the following can be included: in response to the terminal not supporting the dynamic SFN scheme, the default TCI state is one set of TCI states in the N sets of TCI states; in response to the terminal supporting the dynamic SFN scheme, based on the transmission mode of the physical shared channel, the default TCI state is one or more sets of TCI states in the N sets of TCI states.

[0236] In some embodiments, in response to the transmission mode of the PDCCH being an SFN scheme, and the terminal not supporting the dynamic SFN scheme, the default TCI state can be one set of TCI states in the N sets of TCI states.

[0237] For example, the PDCCH is configured to transmit in the SFN scheme, and the terminal does not support the dynamic SFN scheme. It can be determined that the default TCI state directly includes one set of TCI states in the N sets of TCI states.

[0238] It can be understood that in this case, the PDSCH and / or PUSCH are not allowed to be configured with a transmission mode based on multiple sets of TCI, for example, not allowed to be configured with any one of multiple different transmission modes in the specified transmission mode.

[0239] In some embodiments, in response to the transmission mode of the PDCCH being an SFN scheme, and the terminal supporting the dynamic SFN scheme, the network device can determine the default TCI state to be one or more sets of TCI states in the N sets of TCI states based on the transmission mode of the physical shared channel.

[0240] For example, the PDCCH is configured to transmit in the SFN scheme, and the terminal supports the dynamic SFN scheme. The network device can determine the default TCI state to be one or more sets of TCI states in the N sets of TCI states based on the transmission mode of the PDSCH and / or PUSCH.

[0241] For example, the network device can determine the default TCI state as one of the N sets of TCI states or determine the default TCI state as multiple sets of TCI states from the N sets of TCI states according to whether the PDSCH and / or the PUSCH is configured with some specified transmission mode.

[0242] In some embodiments, in response to the transmission mode of the PDCCH being the SFN scheme, the default TCI state can be determined as one of the N sets of TCI states in response to the terminal not supporting the dynamic SFN scheme, and the default TCI state can be determined as one or multiple sets of TCI states from the N sets of TCI states based on the transmission mode of the physical shared channel in response to the terminal supporting the dynamic SFN scheme.

[0243] The present disclosure determines a suitable default TCI state when the transmission mode of the PDCCH is the SFN scheme. In order to perform transmission of a channel and / or a signal based on the default TCI state, thereby improving the transmission reliability of the channel and / or the signal based on the TCI state.

[0244] In the beam indication method provided by the embodiments of the present disclosure, the method can further include: sending RRC signaling, the RRC signaling indicating that any CORESET corresponds to one of the N sets of TCI states.

[0245] In some embodiments, the network device can further send RRC signaling to the terminal. The RRC signaling can be used to indicate that any one of the CORESETs corresponds to one of the N sets of TCI states.

[0246] For example, the RRC signaling indicates that a certain CORESET corresponds to transmission based on one of the N sets of TCI states. Then, the default beam of the PDSCH and / or the PUSCH scheduled or triggered by the DCI on the PDCCH in the CORESET can be determined as one or multiple sets of TCI states from the N sets of TCI states according to whether the terminal supports the SFN scheme.

[0247] It can be understood that the transmission mode of the PDCCH can be the SFN scheme. That is, the PDCCH is configured with the transmission mode of the SFN scheme.

[0248] The present disclosure determines a suitable default TCI state when the RRC indicates that there is a CORESET corresponding to one of the N sets of TCI states. In order to perform transmission of a channel and / or a signal based on the default TCI state, thereby improving the transmission reliability of the channel and / or the signal based on the TCI state.

[0249] In the beam indication method provided by the embodiments of the present disclosure, in response to the terminal supporting the dynamic SFN scheme and the transmission mode of the physical shared channel being a specified transmission mode, the default TCI state is one or more of the N sets of TCI states.

[0250] In some embodiments, in response to the terminal supporting the dynamic SFN scheme and the transmission mode of the physical shared channel being a specified transmission mode, the default TCI state can be determined to be one or more of the N sets of TCI states.

[0251] For example, the terminal supports the dynamic SFN scheme, and the PDSCH and / or PUSCH is a specified transmission mode. The default TCI state can be determined to directly include one or more of the N sets of TCI states. For example, the default TCI state can directly include all, part, or a certain set of the N sets of TCI states. For example, the default TCI state can directly include two sets of TCI states or one set of TCI states.

[0252] In some embodiments, in response to the terminal supporting the dynamic SFN scheme and the transmission mode of the physical shared channel being a specified transmission mode, the default TCI state can be determined to be one or more of the N sets of TCI states based on the case that the physical shared channel is configured with a specified parameter.

[0253] For example, the terminal supports the dynamic SFN scheme, and the PDSCH and / or PUSCH is a specified transmission mode. The network device can determine the default TCI state to be one or more of the N sets of TCI states based on the case that the physical shared channel is configured with a specified parameter.

[0254] For example, the network device can determine the default TCI state to be one set of TCI states from the N sets of TCI states or determine the default TCI state to be multiple sets of TCI states from the N sets of TCI states according to whether the physical shared channel is configured with a specified parameter.

[0255] The specified parameter can be, for example, an enabletwoDefaultTCIstate parameter. According to the configuration of the enabletwoDefaultTCIstate parameter, the default TCI state is determined to be one of the N sets of TCI states or multiple sets of TCI states. For example, if the enabletwoDefaultTCIstate is configured, the default TCI state is two or more sets of TCI states of the N sets of TCI states. If the enabletwoDefaultTCIstate is not configured, the default TCI state is one set of TCI states of the N sets of TCI states.

[0256] The present disclosure determines a suitable default TCI state in the case that a terminal supports a dynamic SFN scheme and a transmission mode of a physical shared channel is a specified transmission mode. In this way, the transmission of a channel and / or a signal based on the default TCI state is implemented, thereby improving the transmission reliability of the channel and / or the signal based on the TCI state.

[0257] In the beam indication method provided by the embodiments of the present disclosure, in response to the terminal supporting the dynamic SFN scheme and the transmission mode of the physical shared channel being a non-specified transmission mode, the default TCI state is one set of TCI states of the N sets of TCI states. Alternatively, based on the case that a specified parameter is configured for the physical shared channel, the default TCI state is one or more sets of TCI states of the N sets of TCI states.

[0258] In some embodiments, in response to the terminal supporting the dynamic SFN scheme and the transmission mode of the physical shared channel being a non-specified transmission mode, the default TCI state can be determined to be one set of TCI states of the N sets of TCI states.

[0259] For example, the terminal supports the dynamic SFN scheme, and the PDSCH and / or the PUSCH are non-specified transmission modes. The default TCI state can be determined to directly include one set of TCI states of the N sets of TCI states.

[0260] In some embodiments, in response to the terminal supporting the dynamic SFN scheme and the transmission mode of the physical shared channel being a non-specified transmission mode, the default TCI state can be determined to be one or more sets of TCI states of the N sets of TCI states based on the case that a specified parameter is configured for the physical shared channel.

[0261] For example, the terminal supports a dynamic SFN scheme, and the PDSCH and / or the PUSCH is a non-specified transmission mode. The network device can determine that the default TCI state is one or more of the N sets of TCI states based on whether the physical shared channel is configured with a specified parameter.

[0262] For example, the network device can determine that the default TCI state is one set of TCI states from the N sets of TCI states, or determine that the default TCI state is multiple sets of TCI states from the N sets of TCI states, according to whether the physical shared channel is configured with a specified parameter.

[0263] For example, the specified parameter can be an enabletwoDefaultTCIstate parameter. For example, according to the configuration of the enabletwoDefaultTCIstate parameter, it is determined that the default TCI state is one set of TCI states or multiple sets of TCI states from the N sets of TCI states. For example, if the enabletwoDefaultTCIstate is configured, the default TCI state is two or more sets of TCI states from the N sets of TCI states; if the enabletwoDefaultTCIstate is not configured, the default TCI state is one set of TCI states from the N sets of TCI states.

[0264] The present disclosure determines a suitable default TCI state in the case that the terminal supports a dynamic SFN scheme and the transmission mode of the physical shared channel is a non-specified transmission mode. In this way, the transmission of the channel and / or the signal is performed based on the default TCI state, thereby improving the transmission reliability of the channel and / or the signal based on the TCI state.

[0265] In the beam indication method provided by the embodiments of the present disclosure, the specified transmission mode can include at least one of the following: an FDM scheme; a TDM scheme; an SDM scheme; and an SFN scheme.

[0266] In some embodiments, the specified transmission mode can include an FDM scheme.

[0267] For example, the specified transmission mode can include an FDMschemeA and / or an FDMschemeB.

[0268] The FDMschemeA indicates that the same transport block (TB) is transmitted through different TCI states on different frequency domain resources and the same time domain resource.

[0269] FDM scheme B indicates that the same TB is transmitted multiple times on the same time domain resource with different TCI states on different frequency domain resources.

[0270] In some embodiments, the specified transmission manner can include a TDM scheme.

[0271] For example, the specified transmission manner can include TDM scheme A and / or repetitionNumber in PDSCH / PUSCH-TimeDomainResourceAllocation.

[0272] TDM scheme A indicates that the same TB is transmitted multiple times on the same frequency domain resource with different TCI states on different time domain resources, and the different time domain resources are within the same slot.

[0273] repetitionNumber in PDSCH / PUSCH-TimeDomainResourceAllocation indicates that the same TB is transmitted multiple times on the same frequency domain resource with different TCI states on different time domain resources, and the different time domain resources are within different slots.

[0274] In some embodiments, the specified transmission manner can include an SDM scheme.

[0275] SDM scheme indicates that the same TB is transmitted on different CDM group DMRS ports with different TCI states on the same frequency domain resource and the same time domain resource.

[0276] In some embodiments, the specified transmission manner can include an SFN scheme.

[0277] For example, the specified transmission manner can include SFN scheme A and / or SFN scheme B.

[0278] SFN scheme A indicates that the same TB is transmitted on the same CDM group DMRS port with different TCI states on the same frequency domain resource and the same time domain resource, and PDSCH / PUSCH has a QCL relationship with parameters in both TCI states.

[0279] The SFN scheme B indicates that the same TB is transmitted on the same CDM group of DMRS ports on the same frequency domain resource and the same time domain resource through different TCI states, and the PDSCH / PUSCH has a QCL relationship with the parameters in the two TCI states, except for part of the parameters in the second TCI state. The part of the parameters in the second TCI state can include a Doppler shift, a Doppler spread, and the like.

[0280] In some embodiments, the specified transmission mode can include: an FDM scheme, a TDM scheme; an FDM scheme, an SDM scheme; an FDM scheme, an SFN scheme; a TDM scheme, an SDM scheme; a TDM scheme, an SFN scheme; an SDM scheme, an SFN scheme; an FDM scheme, a TDM scheme, an SDM scheme; an FDM scheme, a TDM scheme, an SFN scheme; an FDM scheme, an SDM scheme, an SFN scheme; a TDM scheme, an SDM scheme, an SFN scheme; an FDM scheme, a TDM scheme, an SDM scheme, an SFN scheme.

[0281] The present disclosure provides multiple manifestations of the specified transmission mode to determine the appropriate default TCI state in the corresponding case. In order to transmit the channel and / or signal based on the default TCI state, thereby improving the transmission reliability of the channel and / or signal based on the TCI state.

[0282] In the beam indication method provided by the embodiments of the present disclosure, the default TCI state based on the specified parameter of the physical shared channel configuration can include: in response to the physical shared channel being configured with the specified parameter, the default TCI state is multiple sets of TCI states in the N sets of TCI states; and in response to the physical shared channel not being configured with the specified parameter, the default TCI state is one set of TCI states in the N sets of TCI states.

[0283] In some embodiments, in response to the physical shared channel being configured with the specified parameter, the default TCI state is multiple sets of TCI states in the N sets of TCI states.

[0284] For example, the PDSCH and / or PUSCH is configured with the specified parameter, such as the enabletwoDefaultTCIstate parameter, and it can be determined that the default TCI state is multiple sets of TCI states in the N sets of TCI states.

[0285] For example, if N is 2, in response to the PDSCH and / or PUSCH being configured with the enabletwoDefaultTCIstate parameter, the default TCI state directly includes 2 sets of TCI states. Of course, if N is more, the default TCI state can directly include all or part of the N sets of TCI states. Specifically, which part of the N sets of TCI states is included in the default TCI state can be pre-set by a protocol or determined based on a default rule, which is not limited by the present disclosure.

[0286] In some embodiments, in response to the physical shared channel not being configured with the specified parameter, the default TCI state is one set of TCI states in the N sets of TCI states.

[0287] For example, the PDSCH and / or PUSCH are not configured with the specified parameter, such as not being configured with the enabletwoDefaultTCIstate parameter, and it can be determined that the default TCI state is one set of TCI states in the N sets of TCI states.

[0288] The present disclosure can determine the appropriate default TCI state according to different cases of the physical shared channel being configured with the specified parameter. In order to perform transmission of the channel and / or signal based on the default TCI state, thereby improving the transmission reliability of the channel and / or signal based on the TCI state.

[0289] In the beam indication method provided by the embodiments of the present disclosure, one set of TCI states is the first set of TCI states in the unified TCI states.

[0290] In some embodiments, one set of TCI states can be the first set of TCI states in the unified TCI states.

[0291] For example, the first set of TCI states can be the TCI state corresponding to the smallest TCI state identifier in the unified TCI states of the beam indication information. The identifier can be an ID or an index.

[0292] For example, the first set of TCI states is the TCI state corresponding to the smallest TCI state ID.

[0293] For another example, the first set of TCI states can be the TCI state with the lowest bit position in the unified TCI states of the beam indication information.

[0294] For example, the first set of TCI states is the TCI state corresponding to the lowest bit position in the unified TCI states of the beam indication information.

[0295] The disclosure provides a specific form of a default TCI state being a set of TCI states, so as to perform transmission of a channel and / or a signal based on the default TCI state, thereby improving transmission reliability of the channel and / or the signal based on the TCI state.

[0296] In the beam indication method provided by the embodiments of the disclosure, the default TCI state is determined in response to at least one of the following conditions being met: the first DCI does not include the correspondence indication field for indicating the correspondence between the physical shared channel and the N sets of TCI states; the physical shared channel is transmitted before the terminal receives the second DCI including the correspondence indication field; and a time offset between the third DCI and the PDSCH is less than an offset threshold, where the third DCI is a DCI scheduling the PDSCH.

[0297] In some embodiments, when the first DCI does not include the correspondence indication field for indicating the correspondence between the physical shared channel and the N sets of TCI states, the network device can determine the default TCI state.

[0298] For example, when the first DCI sent by the network device does not include the correspondence indication field for indicating the correspondence between the PDSCH and / or PUSCH and the N sets of TCI states, the first DCI received by the terminal does not include the correspondence indication field, and thus the correspondence between the physical shared channel and the N sets of TCI states cannot be parsed. In this case, the network device can determine the default TCI state to perform PDSCH and / or PUSCH transmission based on the default TCI state.

[0299] In some embodiments, when the physical shared channel is transmitted before the terminal receives the second DCI including the correspondence indication field, the network device can determine the default TCI state.

[0300] For example, before the terminal receives the second DCI including the correspondence indication field, the terminal needs to perform PDSCH and / or PUSCH transmission. Since the terminal has not received the second DCI including the correspondence indication field, the correspondence between the physical shared channel and the N sets of TCI states cannot be parsed. In this case, the network device can determine the default TCI state to perform PDSCH and / or PUSCH transmission based on the default TCI state.

[0301] In some embodiments, when the time offset between the third DCI and the PDSCH is less than the offset threshold, the network device can determine the default TCI state. The third DCI is a DCI scheduling the PDSCH.

[0302] For example, the offset between the third DCI and the PDSCH transmitted by the network device is less than the offset threshold, which will cause the terminal to not yet complete decoding of the third DCI, and thus cannot obtain the correspondence between the physical shared channel and the N sets of TCI states. In this case, the network device can determine a default TCI state, so as to perform PDSCH and / or PUSCH transmission based on the default TCI state. The time length or time period corresponding to the offset is mainly used for the terminal to decode the DCI.

[0303] It can be understood that the above-mentioned various cases can be considered as the terminal being unable to determine the correspondence between the PDSCH and / or PUSCH and the N sets of TCI states based on the correspondence indication field of the DCI.

[0304] In some embodiments, when the correspondence indication field for indicating the correspondence between the physical shared channel and the N sets of TCI states is not included in the first DCI, and when the physical shared channel is transmitted before the terminal receives the second DCI including the correspondence indication field, the network device can determine a default TCI state.

[0305] In some embodiments, when the correspondence indication field for indicating the correspondence between the physical shared channel and the N sets of TCI states is not included in the first DCI, and when the time offset between the third DCI and the PDSCH is less than the offset threshold, the network device can determine a default TCI state.

[0306] In some embodiments, when the physical shared channel is transmitted before the terminal receives the second DCI including the correspondence indication field, and when the time offset between the third DCI and the PDSCH is less than the offset threshold, the network device can determine a default TCI state.

[0307] In some embodiments, when the correspondence indication field for indicating the correspondence between the physical shared channel and the N sets of TCI states is not included in the first DCI, and when the physical shared channel is transmitted before the terminal receives the second DCI including the correspondence indication field, and when the time offset between the third DCI and the PDSCH is less than the offset threshold, the network device can determine a default TCI state.

[0308] It should be understood that the above-mentioned first DCI, second DCI and third DCI can be the same, partially the same or all different, and the present disclosure is not limited.

[0309] The disclosure can determine a suitable default TCI state in a case where the terminal cannot determine the TCI state based on the DCI. In order to perform transmission of a channel and / or a signal based on the default TCI state, thereby improving transmission reliability of the channel and / or the signal based on the TCI state.

[0310] The beam indication method provided by the embodiments of the disclosure can include: joint TCI state; or at least one of UL TCI state and DL TCI state.

[0311] In some embodiments, each set of TCI state can include joint TCI state.

[0312] In some embodiments, each set of TCI state can include UL TCI state and / or DL TCI state.

[0313] In the disclosure, in different unified TCI state indication scenarios, the transmission of the channel and / or the signal can be performed based on the default TCI state, thereby improving the transmission reliability of the channel and / or the signal based on the TCI state.

[0314] In the beam indication method provided by the embodiments of the disclosure, the beam indication information is carried by the MAC CE, and the MAC CE is used to indicate N sets of TCI states, and the N sets of TCI states correspond to one code point in the TCI indication field in the fourth DCI.

[0315] In some embodiments, the beam indication information can be carried by the MAC CE. The MAC CE can be used to indicate N sets of TCI states. The N sets of TCI states can correspond to one code point in the TCI indication field in the fourth DCI. In this case, the TCI indication field of the fourth DCI does not need to further indicate the code point.

[0316] The disclosure provides a way of carrying beam indication information by MAC CE to indicate N sets of TCI states. In order to determine a suitable default TCI state from the N sets of TCI states. In order to perform transmission of a channel and / or a signal based on the default TCI state, thereby improving transmission reliability of the channel and / or the signal based on the TCI state.

[0317] In the beam indication method provided by the embodiments of the disclosure, the beam indication information is carried by the MAC CE and the fifth DCI, the MAC CE is used to indicate N sets of TCI states corresponding to a plurality of code points in the TCI indication field in the fifth DCI, and the TCI indication field in the fifth DCI is used to indicate one code point in the plurality of code points.

[0318] In some embodiments, the beam indication information can be carried by a MAC CE and a fifth DCI. The MAC CE can be used to indicate a plurality of N sets of TCI states. It can be understood that each of the N sets of TCI states corresponds to a codepoint. That is, the MAC CE indicates a plurality of codepoints respectively corresponding to a plurality of N sets of TCI states. The TCI indication field in the fifth DCI is used to indicate one of the plurality of codepoints. To further indicate a specific one of the plurality of N sets of TCI states.

[0319] It can be understood that the N values in the plurality of N sets of TCI states respectively corresponding to a plurality of codepoints can be the same or different.

[0320] The present disclosure provides a way of carrying beam indication information by a MAC CE and a DCI to indicate N sets of TCI states. In order to determine a suitable default TCI state from the N sets of TCI states. In order to transmit a channel and / or a signal based on the default TCI state, thereby improving the transmission reliability of the channel and / or the signal based on the TCI state.

[0321] It should be noted that those skilled in the art can understand that the various embodiments / embodiments described above in the embodiments of the present disclosure can be used in conjunction with the foregoing embodiments, or can be used independently. Whether it is used alone or together with the foregoing embodiments, the implementation principle is similar. In the embodiments of the present disclosure, some embodiments are described as embodiments used together. Of course, those skilled in the art can understand that such example descriptions are not a limitation of the embodiments of the present disclosure.

[0322] Based on the same concept, the embodiments of the present disclosure also provide a beam indication apparatus and device.

[0323] It can be understood that the beam indication apparatus and device provided by the embodiments of the present disclosure includes the corresponding hardware structure and / or software modules for executing each function in order to achieve the above functions. In combination with the units and algorithm steps of each example disclosed in the embodiments of the present disclosure, the embodiments of the present disclosure can be realized in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software driven 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 the embodiments of the present disclosure.

[0324] Figure 4 is a schematic diagram of a beam indication apparatus according to an example embodiment. Referring to Figure 4The apparatus 200 comprises: a receiving module 201, configured to receive beam indication information, the beam indication information being used to indicate a unified TCI state of a terminal, the unified TCI state comprising N sets of TCI states, wherein N is a positive integer; and a processing module 202, configured to determine a default TCI state for physical shared channel transmission, the default TCI state being one or more sets of TCI states in the N sets of TCI states.

[0325] The present disclosure determines one or more sets of TCI states from the multiple sets of TCI states indicated by the beam indication information as the default TCI state, and performs transmission of channels and / or signals based on the default TCI state, thereby improving the transmission reliability of channels and / or signals based on the TCI state.

[0326] In some embodiments, the processing module 202 is further configured to determine the default TCI state based on a transmission mode of the physical channel.

[0327] The present disclosure can determine a suitable default TCI state according to the transmission mode of the physical channel, so as to perform transmission of channels and / or signals based on the default TCI state, thereby improving the transmission reliability of channels and / or signals based on the TCI state.

[0328] In some embodiments, in response to the transmission mode of the physical shared channel being a specified transmission mode, the default TCI state is multiple sets of TCI states in the N sets of TCI states; or, in response to the physical shared channel being configured with a specified parameter, the default TCI state is one or more sets of TCI states in the N sets of TCI states.

[0329] The present disclosure determines a suitable default TCI state in the case where the transmission mode of the physical shared channel is a specified transmission mode. In order to perform transmission of channels and / or signals based on the default TCI state, thereby improving the transmission reliability of channels and / or signals based on the TCI state.

[0330] In some embodiments, in response to the transmission mode of the physical shared channel being a non-specified transmission mode, the default TCI state is one set of TCI states in the N sets of TCI states; or, in response to the physical shared channel being configured with a specified parameter, the default TCI state is one or more sets of TCI states in the N sets of TCI states.

[0331] The present disclosure determines a suitable default TCI state in the case where the transmission mode of the physical shared channel is a non-specified transmission mode. In order to perform transmission of channels and / or signals based on the default TCI state, thereby improving the transmission reliability of channels and / or signals based on the TCI state.

[0332] In some embodiments, in response to the transmission manner of the physical shared channel being the SFN scheme, at least one of the following is included: in response to the terminal not supporting the dynamic SFN scheme, the default TCI state is multiple sets of TCI states in the N sets of TCI states; in response to the terminal supporting the dynamic SFN scheme, based on the transmission manner of the physical shared channel, the default TCI state is one or more sets of TCI states in the N sets of TCI states.

[0333] The present disclosure determines a suitable default TCI state when the transmission manner of the physical shared channel is the SFN scheme. In order to perform transmission of channels and / or signals based on the default TCI state, thereby improving the transmission reliability of channels and / or signals based on the TCI state.

[0334] In some embodiments, in response to the transmission manner of the PDCCH being the SFN scheme, at least one of the following is included: in response to the terminal not supporting the dynamic SFN scheme, the default TCI state is one set of TCI states in the N sets of TCI states; in response to the terminal supporting the dynamic SFN scheme, based on the transmission manner of the physical shared channel, the default TCI state is one or more sets of TCI states in the N sets of TCI states.

[0335] The present disclosure determines a suitable default TCI state when the transmission manner of the PDCCH is the SFN scheme. In order to perform transmission of channels and / or signals based on the default TCI state, thereby improving the transmission reliability of channels and / or signals based on the TCI state.

[0336] In some embodiments, the receiving module 201 is further configured to: receive RRC signaling, the RRC signaling indicating that any control resource set CORESET corresponds to multiple sets of TCI states in the N sets of TCI states.

[0337] The present disclosure determines a suitable default TCI state when the RRC indicates that there is a CORESET corresponding to multiple sets of TCI states in the N sets of TCI states. In order to perform transmission of channels and / or signals based on the default TCI state, thereby improving the transmission reliability of channels and / or signals based on the TCI state.

[0338] In some embodiments, in response to the transmission manner of the PDCCH being the SFN scheme, at least one of the following is included: in response to the terminal not supporting the dynamic SFN scheme, the default TCI state is one set of TCI states in the N sets of TCI states; in response to the terminal supporting the dynamic SFN scheme, based on the transmission manner of the physical shared channel, the default TCI state is one or more sets of TCI states in the N sets of TCI states.

[0339] The disclosure determines a suitable default TCI state in the case that the transmission mode of the PDCCH is the SFN scheme. In order to perform transmission of channels and / or signals based on the default TCI state, thereby improving the transmission reliability of channels and / or signals based on the TCI state.

[0340] In some embodiments, the receiving module 201 is further configured to receive RRC signaling, the RRC signaling indicating that any CORESET corresponds to one of the N sets of TCI states.

[0341] The disclosure determines a suitable default TCI state in the case that the RRC indicates that there is one of the N sets of TCI states corresponding to the CORESET. In order to perform transmission of channels and / or signals based on the default TCI state, thereby improving the transmission reliability of channels and / or signals based on the TCI state.

[0342] In some embodiments, in response to the terminal supporting the dynamic SFN scheme, and the transmission mode of the physical shared channel being the specified transmission mode; the default TCI state being one or more of the N sets of TCI states; or, based on the physical shared channel configuring the specified parameters, the default TCI state being one or more of the N sets of TCI states.

[0343] The disclosure determines a suitable default TCI state in the case that the terminal supports the dynamic SFN scheme, and the transmission mode of the physical shared channel is the specified transmission mode. In order to perform transmission of channels and / or signals based on the default TCI state, thereby improving the transmission reliability of channels and / or signals based on the TCI state.

[0344] In some embodiments, in response to the terminal supporting the dynamic SFN scheme, and the transmission mode of the physical shared channel being the non-specified transmission mode; the default TCI state being one of the N sets of TCI states; or, based on the physical shared channel configuring the specified parameters, the default TCI state being one or more of the N sets of TCI states.

[0345] The disclosure determines a suitable default TCI state in the case that the terminal supports the dynamic SFN scheme, and the transmission mode of the physical shared channel is the non-specified transmission mode. In order to perform transmission of channels and / or signals based on the default TCI state, thereby improving the transmission reliability of channels and / or signals based on the TCI state.

[0346] In some embodiments, the specified transmission mode includes at least one of the following: a frequency division multiplexing (FDM) scheme; a time division multiplexing (TDM) scheme; a space division multiplexing (SDM) scheme; a single frequency network (SFN) scheme.

[0347] The present disclosure provides various manifestations of specifying transmission modes so as to determine appropriate default TCI states in corresponding cases. In order to perform transmission of channels and / or signals based on the default TCI states, thereby improving transmission reliability of channels and / or signals based on TCI states.

[0348] In some embodiments, the default TCI state is one or more of the N sets of TCI states based on the case that the physical shared channel is configured with the specified parameter, including: in response to the physical shared channel being configured with the specified parameter, the default TCI state is multiple sets of TCI states in the N sets of TCI states; and in response to the physical shared channel not being configured with the specified parameter, the default TCI state is one set of TCI states in the N sets of TCI states.

[0349] The present disclosure can determine appropriate default TCI states according to different cases that the physical shared channel is configured with the specified parameter. In order to perform transmission of channels and / or signals based on the default TCI states, thereby improving transmission reliability of channels and / or signals based on TCI states.

[0350] In some embodiments, the one set of TCI states is the first set of TCI states in the unified TCI states.

[0351] The present disclosure provides specific manifestations when the default TCI state is one set of TCI states, so as to perform transmission of channels and / or signals based on the default TCI states, thereby improving transmission reliability of channels and / or signals based on TCI states.

[0352] In some embodiments, the default TCI state is determined in response to at least one of the following conditions being met: the first downlink control information DCI does not include an indication field for indicating a correspondence relationship between the physical shared channel and the N sets of TCI states; the physical shared channel is transmitted before the terminal receives a second DCI including the correspondence relationship indication field; and a time offset between a third DCI and a physical downlink shared channel PDSCH is less than an offset threshold, wherein the third DCI is a DCI scheduling the PDSCH.

[0353] The present disclosure can determine appropriate default TCI states in a case that the terminal cannot determine the TCI state based on the DCI. In order to perform transmission of channels and / or signals based on the default TCI states, thereby improving transmission reliability of channels and / or signals based on TCI states.

[0354] In some embodiments, each set of TCI states includes: a joint TCI state; or at least one of an uplink UL TCI state and a downlink DL TCI state.

[0355] In the disclosure, in different scenarios of unified TCI state indication, the transmission of channels and / or signals can be based on the default TCI state, thereby improving the transmission reliability of channels and / or signals based on the TCI state.

[0356] In some embodiments, the beam indication information is carried by a medium access control element (MAC CE), and the MAC CE is used to indicate N sets of TCI states corresponding to one code point of a TCI indication field in the fourth DCI.

[0357] The disclosure provides a way of carrying beam indication information by a MAC CE to indicate N sets of TCI states. In order to determine a suitable default TCI state from the N sets of TCI states. In order to transmit channels and / or signals based on the default TCI state, thereby improving the transmission reliability of channels and / or signals based on the TCI state.

[0358] In some embodiments, the beam indication information is carried by a medium access control element (MAC CE) and a fifth DCI, the MAC CE is used to indicate N sets of TCI states corresponding to a plurality of code points of a TCI indication field in the fifth DCI, and the TCI indication field in the fifth DCI is used to indicate one code point of the plurality of code points.

[0359] The disclosure provides a way of carrying beam indication information by a MAC CE and a DCI to indicate N sets of TCI states. In order to determine a suitable default TCI state from the N sets of TCI states. In order to transmit channels and / or signals based on the default TCI state, thereby improving the transmission reliability of channels and / or signals based on the TCI state.

[0360] It can be understood that in some cases, the apparatus 200 can also include a sending module and any other possible module.

[0361] Figure 5 is another schematic diagram of a beam indication apparatus according to an exemplary embodiment. Referring to Figure 5 The apparatus 300 includes a sending module 301 configured to send beam indication information, the beam indication information being used to indicate a unified TCI state of a terminal, the unified TCI state including N sets of TCI states, where N is a positive integer; and a processing module 302 configured to determine a default TCI state for physical shared channel transmission, the default TCI state being one or more sets of TCI states from the N sets of TCI states.

[0362] The disclosure determines one or more sets of TCI states from the plurality of sets of TCI states indicated by the beam indication information as the default TCI state, and transmits channels and / or signals based on the default TCI state, thereby improving the transmission reliability of channels and / or signals based on the TCI state.

[0363] In some embodiments, the processing module 302 is further configured to determine the default TCI state based on the transmission mode of the physical channel.

[0364] The present disclosure can determine a suitable default TCI state according to the transmission mode of the physical channel, so as to perform transmission of the channel and / or signal based on the default TCI state, thereby improving the transmission reliability of the channel and / or signal based on the TCI state.

[0365] In some embodiments, in response to the transmission mode of the physical shared channel being a specified transmission mode; the default TCI state being a plurality of TCI states in the N sets of TCI states; or, in response to the physical shared channel being configured with a specified parameter, the default TCI state being one or more sets of TCI states in the N sets of TCI states.

[0366] The present disclosure determines a suitable default TCI state in the case where the transmission mode of the physical shared channel is a specified transmission mode. So as to perform transmission of the channel and / or signal based on the default TCI state, thereby improving the transmission reliability of the channel and / or signal based on the TCI state.

[0367] In some embodiments, in response to the transmission mode of the physical shared channel being a non-specified transmission mode; the default TCI state being one set of TCI states in the N sets of TCI states; or, in response to the physical shared channel being configured with a specified parameter, the default TCI state being one or more sets of TCI states in the N sets of TCI states.

[0368] The present disclosure determines a suitable default TCI state in the case where the transmission mode of the physical shared channel is a non-specified transmission mode. So as to perform transmission of the channel and / or signal based on the default TCI state, thereby improving the transmission reliability of the channel and / or signal based on the TCI state.

[0369] In some embodiments, in response to the transmission mode of the physical shared channel being an SFN scheme, including at least one of: in response to the terminal not supporting a dynamic SFN scheme, the default TCI state being a plurality of TCI states in the N sets of TCI states; in response to the terminal supporting a dynamic SFN scheme, in response to the physical shared channel being configured with a specified parameter, the default TCI state being one or more sets of TCI states in the N sets of TCI states.

[0370] The present disclosure determines a suitable default TCI state in the case where the transmission mode of the physical shared channel is an SFN scheme. So as to perform transmission of the channel and / or signal based on the default TCI state, thereby improving the transmission reliability of the channel and / or signal based on the TCI state.

[0371] In some embodiments, in response to the transmission mode of the PDCCH being the SFN scheme, the following at least one is included: in response to the terminal not supporting the dynamic SFN scheme, the default TCI state is a plurality of TCI states in the N sets of TCI states; in response to the terminal supporting the dynamic SFN scheme, based on the transmission mode of the physical shared channel, the default TCI state is determined to be one or more sets of TCI states in the N sets of TCI states.

[0372] The present disclosure determines a suitable default TCI state in the case where the transmission mode of the PDCCH is the SFN scheme. In order to perform transmission of a channel and / or a signal based on the default TCI state, thereby improving the transmission reliability of the channel and / or the signal based on the TCI state.

[0373] In some embodiments, the sending module 301 is further configured to: send RRC signaling, the RRC signaling indicating that any CORESET corresponds to a plurality of TCI states in the N sets of TCI states.

[0374] The present disclosure determines a suitable default TCI state in the case where the RRC indicates that there is a CORESET corresponding to a plurality of TCI states in the N sets of TCI states. In order to perform transmission of a channel and / or a signal based on the default TCI state, thereby improving the transmission reliability of the channel and / or the signal based on the TCI state.

[0375] In some embodiments, in response to the transmission mode of the PDCCH being the SFN scheme, the following at least one is included: in response to the terminal not supporting the dynamic SFN scheme, the default TCI state is a plurality of TCI states in the N sets of TCI states; in response to the terminal supporting the dynamic SFN scheme, based on the transmission mode of the physical shared channel, the default TCI state is determined to be one or more sets of TCI states in the N sets of TCI states.

[0376] The present disclosure determines a suitable default TCI state in the case where the transmission mode of the PDCCH is the SFN scheme. In order to perform transmission of a channel and / or a signal based on the default TCI state, thereby improving the transmission reliability of the channel and / or the signal based on the TCI state.

[0377] In some embodiments, the sending module 301 is further configured to: send RRC signaling, the RRC signaling indicating that any CORESET corresponds to a plurality of TCI states in the N sets of TCI states.

[0378] The present disclosure determines a suitable default TCI state in the case where the RRC indicates that there is a CORESET corresponding to a plurality of TCI states in the N sets of TCI states. In order to perform transmission of a channel and / or a signal based on the default TCI state, thereby improving the transmission reliability of the channel and / or the signal based on the TCI state.

[0379] In some embodiments, in response to the terminal supporting the dynamic SFN scheme, and the transmission mode of the physical shared channel being a specified transmission mode; the default TCI state being one or more of the N sets of TCI states; or, the default TCI state being one or more of the N sets of TCI states based on the physical shared channel configuring a specified parameter.

[0380] The present disclosure determines a suitable default TCI state in the case where the terminal supports the dynamic SFN scheme, and the transmission mode of the physical shared channel is a specified transmission mode. In order to perform transmission of channels and / or signals based on the default TCI state, thereby improving the transmission reliability of channels and / or signals based on the TCI state.

[0381] In some embodiments, in response to the terminal supporting the dynamic SFN scheme, and the transmission mode of the physical shared channel being a non-specified transmission mode; the default TCI state being one of the N sets of TCI states; or, the default TCI state being one or more of the N sets of TCI states based on the physical shared channel configuring a specified parameter.

[0382] The present disclosure determines a suitable default TCI state in the case where the terminal supports the dynamic SFN scheme, and the transmission mode of the physical shared channel is a non-specified transmission mode. In order to perform transmission of channels and / or signals based on the default TCI state, thereby improving the transmission reliability of channels and / or signals based on the TCI state.

[0383] In some embodiments, the specified transmission mode includes at least one of: a frequency division multiplexing (FDM) scheme; a time division multiplexing (TDM) scheme; a space division multiplexing (SDM) scheme; and a single frequency network (SFN) scheme.

[0384] The present disclosure provides various manifestations of the specified transmission mode, in order to determine a suitable default TCI state in the corresponding case. In order to perform transmission of channels and / or signals based on the default TCI state, thereby improving the transmission reliability of channels and / or signals based on the TCI state.

[0385] In some embodiments, the default TCI state being one or more of the N sets of TCI states based on the physical shared channel configuring a specified parameter includes: in response to the physical shared channel being configured with the specified parameter, the default TCI state being multiple of the N sets of TCI states; and in response to the physical shared channel not being configured with the specified parameter, the default TCI state being one of the N sets of TCI states.

[0386] The disclosure can determine a suitable default TCI state according to different cases of specifying parameters of a physical shared channel. In order to perform transmission of a channel and / or a signal based on the default TCI state, thereby improving transmission reliability of the channel and / or the signal based on the TCI state.

[0387] In some embodiments, the set of TCI states is a first set of TCI states in the unified TCI states.

[0388] The disclosure provides specific forms when the default TCI state is a set of TCI states, in order to perform transmission of a channel and / or a signal based on the default TCI state, thereby improving transmission reliability of the channel and / or the signal based on the TCI state.

[0389] In some embodiments, the default TCI state is determined in response to at least one of the following conditions being met: the first downlink control information DCI does not include an indication field for indicating a correspondence relationship between the physical shared channel and the N sets of TCI states; the physical shared channel is transmitted before the terminal receives a second DCI including the correspondence relationship indication field; and a time offset between a third DCI and a physical downlink shared channel PDSCH is less than an offset threshold, wherein the third DCI is a DCI scheduling the PDSCH.

[0390] The disclosure can determine a suitable default TCI state when the terminal cannot determine the TCI state based on the DCI. In order to perform transmission of a channel and / or a signal based on the default TCI state, thereby improving transmission reliability of the channel and / or the signal based on the TCI state.

[0391] In some embodiments, each set of TCI states includes: a joint TCI state; or at least one of an uplink UL TCI state and a downlink DL TCI state.

[0392] In the disclosure, in different scenarios of indicating unified TCI states, transmission of a channel and / or a signal can be performed based on a default TCI state, thereby improving transmission reliability of the channel and / or the signal based on the TCI state.

[0393] In some embodiments, the beam indication information is carried by a medium access control unit MAC CE, and the MAC CE is used to indicate the N sets of TCI states corresponding to one code point of a TCI indication field in the fourth DCI.

[0394] The disclosure provides a way of carrying beam indication information through a MAC CE to indicate N sets of TCI states. In order to determine a suitable default TCI state from the N sets of TCI states. In order to perform transmission of a channel and / or a signal based on the default TCI state, thereby improving transmission reliability of the channel and / or the signal based on the TCI state.

[0395] In some embodiments, the beam indication information is carried by a medium access control element (MAC CE) and a fifth DCI, the MAC CE is used to indicate that a plurality of code points of a TCI indication field in the fifth DCI respectively correspond to N sets of TCI states, and the TCI indication field in the fifth DCI is used to indicate one of the plurality of code points.

[0396] The present disclosure provides a way of carrying beam indication information by a MAC CE and a DCI to indicate N sets of TCI states. In order to determine a suitable default TCI state from the N sets of TCI states. In order to perform transmission of a channel and / or a signal based on the default TCI state, thereby improving the transmission reliability of the channel and / or the signal based on the TCI state.

[0397] It can be understood that in some cases, the apparatus 300 can further include a receiving module and any other possible module.

[0398] As to the apparatus in the above-mentioned embodiments, the specific manners in which various modules perform operations have been described in detail in the embodiments of the method, and thus will not be described in detail here.

[0399] Figure 6 FIG. 4 is a schematic diagram of an apparatus 400 according to an example embodiment. The apparatus 400 can be any terminal device, such as a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, or the like.

[0400] Referring to Figure 6 The apparatus 400 can include one or more of the following components: a processing component 402, a memory 404, a power supply component 406, a multimedia component 408, an audio component 410, an input / output (I / O) interface 412, a sensor component 414, and a communication component 416.

[0401] The processing component 402 generally controls the overall operations of the apparatus 400, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 402 can include one or more processors 420 to execute instructions to complete all or part of steps of the methods described above. In addition, the processing component 402 can include one or more modules to facilitate interaction between the processing component 402 and other components. For example, the processing component 402 can include a multimedia module to facilitate the interaction between the multimedia component 408 and the processing component 402.

[0402] The memory 404 is configured to store various types of data to support the operation of the device 400. Examples of such data include instructions for any application or method operating on the device 400, contact data, phonebook data, messages, pictures, videos, and the like. The memory 404 can be implemented by any type of volatile or nonvolatile storage devices 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 memory, flash memory, magnetic disk or optical disk.

[0403] The power component 406 provides power to the various components of the device 400. The power component 406 can include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the device 400.

[0404] The multimedia component 408 includes a screen providing an output interface between the device 400 and a user. In some embodiments, the screen can include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen can be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touch, swiping, and gestures on the touch panel. The touch sensors can not only sense a boundary of a touching or swiping action, but also detect duration and pressure related to the touching or swiping action. In some embodiments, the multimedia component 408 includes a front camera and / or a rear camera. The front and / or rear camera can receive external multimedia data when the device 400 is in an operation mode, such as a shooting mode or a video mode. Each of the front and rear camera can be a fixed optical lens system or have a focal length and optical zoom capability.

[0405] The audio component 410 is configured to output and / or input audio signals. For example, the audio component 410 includes a microphone (MIC) configured to receive external audio signals when the device 400 is in an operation mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals can be further stored in the memory 404 or transmitted via the communication component 416. In some embodiments, the audio component 410 also includes a speaker for outputting audio signals.

[0406] The I / O interface 412 provides an interface between the processing component 402 and peripheral interface modules, which can be a keyboard, a click wheel, buttons, and the like. The buttons can include, but are not limited to, a home button, a volume button, a start button, and a lock button.

[0407] The sensor component 414 includes one or more sensors for providing status assessments for various aspects of the device 400. For example, the sensor component 414 can detect an open / closed position of the device 400, relative positioning of components, such as a display and keypad of the device 400, changes in position of the device 400 or a component of the device 400, presence or absence of user contact with the device 400, orientation or acceleration / deceleration of the device 400, and temperature changes of the device 400. The sensor component 414 can include proximity sensor(s) configured to detect presence of nearby objects without any physical contact. The sensor component 414 can also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor component 414 can also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0408] The communication component 416 is configured to facilitate wired or wireless communication between the device 400 and another device. The device 400 can access a wireless network based on a communication standard, such as WiFi, 2G, or 3G, or a combination thereof. In an exemplary embodiment, the communication component 416 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 416 further includes a Near Field Communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technology.

[0409] In an exemplary embodiment, the device 400 can be implemented with 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, micro-controllers, microprocessors, or other electronic components to perform the above-described methods.

[0410] In an exemplary embodiment, a non-transitory computer-readable storage medium, such as the memory 404 including instructions, is also provided. The instructions can be executed by the processor 420 of the device 400 to complete the above-described methods. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disc, and an optical data storage device, etc.

[0411] Figure 7 FIG. 5 is another schematic diagram of a device for beam indication according to an exemplary embodiment. For example, the device 500 can be provided as a base station, or a server. Referring to FIG. 5, the device 500 includes a processor 520, a memory 524, a transceiver 530, and an antenna 532. The processor 520, the memory 524, and the transceiver 530 can be communicatively coupled to each other. The processor 520 can be configured to implement proposed functions, procedures, and / or methods described in this disclosure. The memory 524 can include a volatile memory (e.g., a DRAM) and / or a non-volatile memory (e.g., a flash memory). The memory 524 can store data and / or instructions to be executed by the processor 520. The transceiver 530 can communicate with the processor 520, the memory 524, and / or other components of the device 500 via one or more buses. The transceiver 530 can include a transmitter and / or a receiver. The transmitter can be configured to convert a digital signal, which is output from the processor 520, into a baseband frequency or a carrier frequency, and transmit the signal via the antenna 532. The receiver can be configured to convert a signal received at the antenna 532 into a digital signal and provide the digital signal to the processor 520. The transceiver 530 can be configured to transmit and / or receive a signal via a plurality of antennas 532. The transceiver 530 can be configured to transmit and / or receive a signal using a plurality of frequency bands. The transceiver 530 can be configured to transmit and / or receive a signal using a plurality of communication standards. Figure 7The device 500 includes a processing component 522, which further includes one or more processors, and memory resources represented by the memory 532 for storing instructions, such as application programs, executable by the processing component 522. The application programs stored in the memory 532 can include one or more than one module each corresponding to a set of instructions. In addition, the processing component 522 is configured to execute the instructions to perform the above-mentioned method.

[0412] The device 500 can also include a power supply component 526 configured to perform power management of the device 500, a wired or wireless network interface 550 configured to connect the device 500 to a network, and an input / output (I / O) interface 558. The device 500 can operate based on an operating system stored in the memory 532, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM or the like.

[0413] The present disclosure proposes that in the case of unified TCI state indication of single-DCI multi-TRP, when the beam indication information indicates multiple sets of TCI states, the terminal cannot determine the TCI state of PDSCH / PUSCH, and proposes that the default TCI state of PDSCH / PUSCH is which set or multiple sets of TCI states, thereby improving the transmission reliability of PDSCH / PUSCH based on unified TCI state.

[0414] It can be further understood that "multiple" in the present disclosure refers to two or more, and other quantifiers are similar. "And / or" describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can represent: A exists alone, A and B exist together, and B exists alone. The character " / " generally represents that the associated objects before and after it are in an "or" relationship. The singular form "a", "said" and "the" are also intended to include the plural form, unless the context clearly indicates otherwise.

[0415] It can be further understood that the terms "first", "second" and the like are used to describe various information, but these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other, and do not represent a specific order or importance. In fact, the expressions of "first", "second" and the like can be completely interchangeable. For example, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information without departing from the scope of the present disclosure.

[0416] 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”.

[0417] 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.

[0418] 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.

[0419] 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 beam pointing method, characterized in that, The method is executed by a terminal and includes: Receive beam indication information, the beam indication information being used to indicate the unified transmission configuration indication (TCI) status of the terminal, the unified TCI status including N sets of TCI status, where N is a positive integer; Determine a default TCI state for transmission on the physical shared channel, wherein the default TCI state is one or more of the N sets of TCI states; The physical shared channel uses a single-frequency network (SFN) scheme for transmission, and the default TCI state is determined using at least one of the following methods: The terminal does not support the dynamic SFN scheme, and the default TCI state is multiple TCI states among the N sets of TCI states. The terminal supports a dynamic SFN scheme. Based on the physical shared channel configuration of specified parameters, the default TCI state is one or more of the N TCI states.

2. The method of claim 1, wherein, The determination of the default TCI state for physical shared channel transmission includes: The default TCI state is determined based on the transmission method of the physical channel.

3. The method of claim 2, wherein, The transmission method of the physical shared channel is a specified transmission method; The default TCI state is multiple TCI states from the N sets of TCI states; or... Based on the specified parameters of the physical shared channel configuration, the default TCI state is one or more of the N TCI states.

4. The method of claim 2, wherein, The transmission method of the physical shared channel is a non-specified transmission method; The default TCI state is one of the N sets of TCI states; or... Based on the specified parameters of the physical shared channel configuration, the default TCI state is one or more of the N TCI states.

5. The method of claim 2, wherein, The Physical Downlink Control Channel (PDCCH) is transmitted using the SFN scheme, including at least one of the following: The terminal does not support the dynamic SFN scheme, and the default TCI state is multiple TCI states among the N sets of TCI states. The terminal supports a dynamic SFN scheme, and based on the transmission mode of the physical shared channel, determines the default TCI state as one or more of the N TCI states.

6. The method of claim 5, wherein, The method further includes: Receive Radio Resource Control (RRC) signaling, wherein any control resource set CORESET corresponds to multiple TCI states among the N TCI states.

7. The method of claim 2, wherein, The PDCCH is transmitted using the SFN scheme, including at least one of the following: The terminal does not support the dynamic SFN scheme, and the default TCI state is one of the N sets of TCI states. The terminal supports a dynamic SFN scheme, and based on the transmission mode of the physical shared channel, determines the default TCI state as one or more of the N TCI states.

8. The method of claim 7, wherein, The method further includes: Receive RRC signaling, wherein any CORESET corresponds to one of the N sets of TCI states.

9. The method according to any one of claims 5-8, characterized in that, The terminal supports a dynamic SFN scheme, and the transmission method of the physical shared channel is a specified transmission method, including: The default TCI state is one or more of the N sets of TCI states; or... Based on the specified parameters of the physical shared channel configuration, the default TCI state is one or more of the N TCI states.

10. The method according to any one of claims 5-8, characterized in that, The terminal supports a dynamic SFN scheme, and the transmission method of the physical shared channel is a non-specified transmission method, including: The default TCI state is one of the N sets of TCI states; or... Based on the specified parameters of the physical shared channel configuration, the default TCI state is one or more of the N TCI states.

11. The method of any one of claims 1, 3, 4, 9, 10, wherein, The specified transmission method includes at least one of the following: Frequency Division Multiplexing (FDM) scheme; Time Division Multiplexing (TDM) scheme; Space Division Multiplexing (SDM) scheme; Single-frequency network (SFN) scheme.

12. The method of any one of claims 1, 3-11, wherein, In the case where specified parameters are configured based on the physical shared channel, the default TCI state is one or more of the N TCI states, including: The physical shared channel is configured with the specified parameters, and the default TCI state is multiple TCI states among the N sets of TCI states; The physical shared channel is not configured with the specified parameters, and the default TCI state is one of the N sets of TCI states.

13. The method of claim 1, wherein, The set of TCI states is the first set of TCI states in the unified TCI states.

14. The method of claim 1, wherein, The default TCI state is determined if at least one of the following conditions is met: The first downlink control information (DCI) does not include an indication field for indicating the correspondence between the physical shared channel and the N sets of TCI states; The physical shared channel is transmitted before the terminal receives the second DCI including the correspondence indication field; The time offset between the third DCI and the physical downlink shared channel (PDSCH) is less than the offset threshold, wherein the third DCI is the DCI that schedules the PDSCH.

15. The method of claim 1, wherein, Each set of the aforementioned TCI states includes: Combined TCI state; or, At least one of the following: uplink UL TCI status and downlink DL TCI status.

16. The method of claim 1, wherein, The beam indication information is carried by the Media Access Control Unit (MAC CE), which is used to indicate the N sets of TCI states. The N sets of TCI states correspond to a code point in the TCI indication field of the fourth DCI.

17. The method of claim 1, wherein, The beam indication information is carried through the Media Access Control Unit (MAC CE) and the fifth DCI. The MAC CE is used to indicate the N sets of TCI states corresponding to multiple code points in the TCI indication field of the fifth DCI. The TCI indication field in the fifth DCI is used to indicate one of the multiple code points.

18. A method for beam indication, comprising: The method is executed by a network device and includes: Send beam indication information, which is used to indicate the unified transmission configuration indication (TCI) status of the terminal. The unified TCI status includes N sets of TCI statuses, where N is a positive integer. Determine a default TCI state for transmission on the physical shared channel, wherein the default TCI state is one or more of the N sets of TCI states; The physical shared channel uses a single-frequency network (SFN) scheme for transmission, and the default TCI state is determined using at least one of the following methods: The terminal does not support the dynamic SFN scheme, and the default TCI state is multiple TCI states among the N sets of TCI states. The terminal supports a dynamic SFN scheme. Based on the physical shared channel configuration of specified parameters, the default TCI state is one or more of the N TCI states.

19. The method of claim 18, wherein, The determination of the default TCI state for physical shared channel transmission includes: The default TCI state is determined based on the transmission method of the physical channel.

20. The method of claim 19, wherein, The transmission method of the physical shared channel is a specified transmission method; The default TCI state is multiple TCI states from the N sets of TCI states; or... Based on the specified parameters of the physical shared channel configuration, the default TCI state is one or more of the N TCI states.

21. The method of claim 19, wherein, The transmission method of the physical shared channel is a non-specified transmission method; The default TCI state is one of the N sets of TCI states; or... Based on the specified parameters of the physical shared channel configuration, the default TCI state is one or more of the N TCI states.

22. The method of claim 19, wherein, The Physical Downlink Control Channel (PDCCH) is transmitted using the SFN scheme, including at least one of the following: The terminal does not support the dynamic SFN scheme, and the default TCI state is multiple TCI states among the N sets of TCI states. The terminal supports a dynamic SFN scheme, and based on the transmission mode of the physical shared channel, determines the default TCI state as one or more of the N TCI states.

23. The method of claim 22, wherein, The method further includes: Send Radio Resource Control (RRC) signaling, wherein any control resource set CORESET corresponds to multiple TCI states among the N TCI states.

24. The method of claim 19, wherein, The PDCCH is transmitted using the SFN scheme, including at least one of the following: The terminal does not support the dynamic SFN scheme, and the default TCI state is one of the N sets of TCI states. The terminal supports a dynamic SFN scheme, and based on the transmission mode of the physical shared channel, determines the default TCI state as one or more of the N TCI states.

25. The method of claim 24, wherein, The method further includes: Send RRC signaling, wherein any CORESET corresponds to one of the N sets of TCI states.

26. The method of any of claims 22-25, wherein, The terminal supports a dynamic SFN scheme, and the transmission method of the physical shared channel is a specified transmission method, including: The default TCI state is one or more of the N sets of TCI states; or... Based on the specified parameters of the physical shared channel configuration, the default TCI state is one or more of the N TCI states.

27. The method of any of claims 22-25, wherein, The terminal supports a dynamic SFN scheme, and the transmission method of the physical shared channel is a non-specified transmission method, including: The default TCI state is one of the N sets of TCI states; or... Based on the specified parameters of the physical shared channel configuration, the default TCI state is one or more of the N TCI states.

28. The method of any one of claims 18, 20, 21, 26, 27, wherein, The specified transmission method includes at least one of the following: Frequency Division Multiplexing (FDM) scheme; Time Division Multiplexing (TDM) scheme; Space Division Multiplexing (SDM) scheme; Single-frequency network (SFN) scheme.

29. The method of any of claims 18, 20-28, wherein, In the case where specified parameters are configured based on the physical shared channel, the default TCI state is one or more of the N TCI states, including: The physical shared channel is configured with the specified parameters, and the default TCI state is multiple TCI states among the N sets of TCI states; The physical shared channel is not configured with the specified parameters, and the default TCI state is one of the N sets of TCI states.

30. The method of claim 18, wherein, The set of TCI states is the first set of TCI states in the unified TCI states.

31. The method of claim 18, wherein, The default TCI state is determined if at least one of the following conditions is met: The first downlink control information (DCI) does not include an indication field for indicating the correspondence between the physical shared channel and the N sets of TCI states; The physical shared channel is transmitted before the terminal receives the second DCI including the correspondence indication field; The time offset between the third DCI and the physical downlink shared channel (PDSCH) is less than the offset threshold, wherein the third DCI is the DCI that schedules the PDSCH.

32. The method according to claim 18, characterized in that, Each set of the aforementioned TCI states includes: Combined TCI state; or, At least one of the following: uplink UL TCI status and downlink DL TCI status.

33. The method according to claim 18, characterized in that, The beam indication information is carried by the Media Access Control Unit (MAC CE), which is used to indicate the N sets of TCI states. The N sets of TCI states correspond to a code point in the TCI indication field of the fourth DCI.

34. The method according to claim 18, characterized in that, The beam indication information is carried through the Media Access Control Unit (MAC CE) and the fifth DCI. The MAC CE is used to indicate the N sets of TCI states corresponding to multiple code points in the TCI indication field of the fifth DCI. The TCI indication field in the fifth DCI is used to indicate one of the multiple code points.

35. A beam pointing device, characterized in that, The device includes: The receiving module is used to receive beam indication information, which is used to indicate the unified transmission configuration indication (TCI) status of the terminal. The unified TCI status includes N sets of TCI statuses, where N is a positive integer. The processing module is used to determine the default TCI state for transmission over the Physical Shared Channel, wherein the default TCI state is one or more of the N sets of TCI states. The processing module is further configured to determine the default TCI state using at least one of the following methods when the transmission mode of the physical shared channel is a single-frequency network (SFN) scheme: The terminal does not support the dynamic SFN scheme, and the default TCI state is multiple TCI states among the N sets of TCI states. The terminal supports a dynamic SFN scheme. Based on the physical shared channel configuration of specified parameters, the default TCI state is one or more of the N TCI states.

36. A beam pointing device, characterized in that, The device includes: The transmitting module is used to transmit beam indication information, which is used to indicate the unified transmission configuration indication (TCI) status of the terminal. The unified TCI status includes N sets of TCI statuses, where N is a positive integer. The processing module is used to determine the default TCI state for transmission over the Physical Shared Channel, wherein the default TCI state is one or more of the N sets of TCI states. The processing module is further configured to determine the default TCI state using at least one of the following methods when the transmission mode of the physical shared channel is a single-frequency network (SFN) scheme: The terminal does not support the dynamic SFN scheme, and the default TCI state is multiple TCI states among the N sets of TCI states. The terminal supports a dynamic SFN scheme. Based on the physical shared channel configuration of specified parameters, the default TCI state is one or more of the N TCI states.

37. A beam pointing device, characterized in that, include: processor; Memory used to store processor-executable instructions; The processor is configured to perform the method described in any one of claims 1 to 17.

38. A beam pointing device, characterized in that, include: processor; Memory used to store processor-executable instructions; The processor is configured to perform the method described in any one of claims 18 to 34.

39. A non-transitory computer-readable storage medium, characterized in that, When the instructions in the storage medium are executed by the processor of the terminal, the terminal is able to perform the method according to any one of claims 1 to 17.

40. A non-transitory computer-readable storage medium, characterized in that, When the instructions in the storage medium are executed by the processor of the network device, the network device is able to perform the method of any one of claims 18 to 34.

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