Transmission configuration indication state determination method, configuration method, apparatus, and storage medium

Abstract

The present disclosure relates to a transmission configuration indication state determination method, a configuration method, an apparatus and a storage medium. The method comprises: obtaining first indication information, the first indication information being used to determine a first transmission configuration indication state, the first transmission configuration indication state comprising N sets of unified transmission configuration indication states; obtaining second indication information, the second indication information being used to determine a second transmission configuration indication state corresponding to a physical shared channel of a terminal, the second transmission configuration indication state being one or more sets of unified transmission configuration indication states in the N sets of unified transmission configuration indication states; the physical shared channel comprising a physical uplink shared channel and / or a physical downlink shared channel, a physical downlink control channel of the terminal being configured to communicate based on a single frequency network (SFN) scheme, and the first indication information and the second indication information being received through the physical downlink control channel. The method can improve the transmission flexibility of the physical shared channel based on the unified transmission configuration indication state.

Description

Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to a method, configuration method, apparatus and storage medium for determining transmission configuration indication status. Background Technology

[0002] In New Radio (NR) technologies, such as communication in frequency range 2, beam-based transmission and reception are required to ensure coverage due to the rapid attenuation of high-frequency channels.

[0003] In related technologies, beamforming can be indicated using transmission configuration indication (TCI) state or spatial relation information. One method for indicating beamforming using TCI state is based on signaling indication of the TCI state corresponding to each physical channel. To reduce signaling overhead, 3GPP introduced a unified transmission configuration indication state (unified TCI state).

[0004] In the case of multiple transmitting and receiving points, there are multiple physical channels, and configuring these multiple physical channels is a rather cumbersome process. Summary of the Invention

[0005] To overcome the problems existing in related technologies, this disclosure provides a method for determining transmission configuration indication status, a configuration method, an apparatus, and a storage medium.

[0006] According to a first aspect of the present disclosure, a method for determining a transmission configuration indication state is provided, the method being executed by a terminal, the method comprising:

[0007] Obtain first indication information, which is used to determine a first transmission configuration indication state (TCIstate). The first TCI state includes N sets of unified transmission configuration indication states (unified TCI states), where N is a positive integer greater than 1.

[0008] Obtain second indication information, which is used to determine the second TCI state corresponding to the physical shared channel of the terminal. The second TCI state is one or more of the N unified TCI states.

[0009] The physical shared channel includes a physical uplink shared channel and / or a physical downlink shared channel. The physical downlink control channel of the terminal is configured to communicate based on a single-frequency network (SFN) scheme. The first indication information and the second indication information are received through the physical downlink control channel.

[0010] According to a second aspect of the present disclosure, a transmission configuration indication state configuration method is provided, the method being executed by a network device, the method comprising:

[0011] Send first indication information, the first indication information is used to configure a first transmission configuration indication state TCIstate, the first TCI state includes N sets of unified transmission configuration indication states, where N is a positive integer greater than 1;

[0012] Send a second indication message, which is used to configure the second TCI state corresponding to the physical shared channel of the terminal. The second TCI state is one or more of the N unified TCI states.

[0013] The physical shared channel includes a physical uplink shared channel and / or a physical downlink shared channel. The physical downlink control channel of the terminal is configured to communicate based on a single-frequency network (SFN) scheme. The first indication information and the second indication information are received through the physical downlink control channel.

[0014] According to a third aspect of the present disclosure, a transmission configuration indication state determination apparatus is provided, characterized in that it includes:

[0015] The receiving unit is configured to acquire first indication information, which is used to determine a first transmission configuration indication state (TCI state). The first TCI state includes N sets of unified transmission configuration indication states (unified TCI states), where N is a positive integer greater than 1.

[0016] Obtain second indication information, which is used to determine the second TCI state corresponding to the physical shared channel of the terminal. The second TCI state is one or more of the N unified TCI states.

[0017] The physical shared channel includes a physical uplink shared channel and / or a physical downlink shared channel. The physical downlink control channel of the terminal is configured to communicate based on a single-frequency network (SFN) scheme. The first indication information and the second indication information are received through the physical downlink control channel.

[0018] According to a fourth aspect of the present disclosure, a transmission configuration indication state configuration apparatus is provided, comprising:

[0019] The sending unit is configured to send first indication information, which is used to configure a first transmission configuration indication state (TCI state). The first TCI state includes N sets of unified transmission configuration indication states (unified TCI states), where N is a positive integer greater than 1.

[0020] Send a second indication message, which is used to configure the second TCI state corresponding to the physical shared channel of the terminal. The second TCI state is one or more of the N unified TCI states.

[0021] The physical shared channel includes a physical uplink shared channel and / or a physical downlink shared channel. The physical downlink control channel of the terminal is configured to communicate based on a single-frequency network (SFN) scheme. The first indication information and the second indication information are received through the physical downlink control channel.

[0022] According to a fifth aspect of the present disclosure, a communication system is provided, including a terminal and a network device, wherein...

[0023] The terminal is used to perform the method as described in any one of the first aspects;

[0024] The network device is used to perform the method as described in any one of the second aspects.

[0025] According to a sixth aspect of the present disclosure, a transmission configuration indication state determination apparatus is provided, comprising:

[0026] processor;

[0027] Memory used to store processor-executable instructions;

[0028] The processor is configured as follows:

[0029] Perform the method as described in any one of the first aspects.

[0030] According to a seventh aspect of the present disclosure, a transmission configuration indication state configuration apparatus is provided, comprising:

[0031] processor;

[0032] Memory used to store processor-executable instructions;

[0033] The processor is configured as follows:

[0034] Perform the method as described in any one of the second aspects.

[0035] According to an eighth aspect of the present disclosure, a storage medium is provided that, when instructions in the storage medium are executed by a processor of a terminal, enables the terminal to perform the method as described in any one of the first aspects.

[0036] According to a ninth aspect of the present disclosure, a storage medium is provided that, when instructions in the storage medium are executed by a processor of a network device, enables the network device to perform the method as described in any one of the second aspects.

[0037] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects: by obtaining first indication information and second indication information when the PDCCH of the terminal is configured to communicate based on the SFN scheme, wherein the first indication information is used to determine a first TCI state including N sets of unified TCI states, and the second indication information is used to determine the unified TCI state corresponding to the physical shared channel based on the first TCI state, a method for indicating the association between the physical shared channel and the unified TCI state is provided when the PDCCH is configured to communicate based on the SFN scheme, thereby improving the transmission flexibility of the physical shared channel based on the unified TCI state.

[0038] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0039] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0040] Figure 1 This is a schematic diagram of a wireless communication system according to an exemplary embodiment.

[0041] Figure 2 This is a flowchart illustrating a method for determining a transmission configuration indication state according to an exemplary embodiment.

[0042] Figure 3 This is a schematic diagram illustrating a method for determining N sets of unified TCI states based on at least one received information according to an exemplary embodiment.

[0043] Figure 4 This is a schematic diagram illustrating a method for determining N sets of unified TCI states based on at least one received information according to an exemplary embodiment.

[0044] Figure 5 This is a flowchart illustrating a method for determining a transmission configuration indication state according to an exemplary embodiment.

[0045] Figure 6 This is a flowchart illustrating a transmission configuration indication state configuration method according to an exemplary embodiment.

[0046] Figure 7 This is a flowchart illustrating a transmission configuration indication state configuration method according to an exemplary embodiment.

[0047] Figure 8 This is a block diagram of a transmission configuration indication state determination device according to an exemplary embodiment.

[0048] Figure 9 This is a block diagram illustrating a transmission configuration indication status configuration device according to an exemplary embodiment.

[0049] Figure 10 This is a block diagram illustrating a communication system according to an exemplary embodiment.

[0050] Figure 11 This is a block diagram illustrating an apparatus for determining a transmission configuration indication state according to an exemplary embodiment.

[0051] Figure 12 This is a block diagram illustrating an apparatus for a method of transmitting configuration indication status according to an exemplary embodiment. Detailed Implementation

[0052] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure.

[0053] The communication method disclosed herein can be applied to... Figure 1 The wireless communication system shown. (See attached image) Figure 1 As shown, this wireless communication system includes network equipment and terminals. The terminals connect to the network equipment via wireless resources and transmit data.

[0054] Understandable Figure 1 The wireless communication system shown is for illustrative purposes only. A wireless communication system may also include other network devices, such as core network equipment, wireless relay equipment, and wireless backhaul equipment. Figure 1 Not shown in the diagram. This disclosure does not limit the number of network devices and terminals included in the wireless communication system.

[0055] It is further understood that the wireless communication system of this disclosure is a network providing wireless communication functionality. The wireless communication system can employ different communication technologies, such as code division multiple access (CDMA), wideband code division multiple access (WCDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency-division multiple access (OFDMA), single carrier frequency division multiple access (SC-FDMA), and carrier sense multiple access with collision avoidance. Based on factors such as capacity, speed, and latency, networks can be categorized as 2G networks, 3G networks, 4G networks, or future evolution networks, such as 5G networks. 5G networks can also be referred to as New Radio (NR). For ease of description, this disclosure may sometimes simply refer to the wireless communication network as a network.

[0056] Furthermore, the network device involved in this disclosure can also be referred to as a wireless access network device. This wireless access network device can be: a base station, an evolved Node B (eBY), a home base station, an access point (AP) in a Wireless Fidelity (WIFI) system, a wireless relay node, a wireless backhaul node, a transmission point (TP), or a transmission and reception point (TRP), etc. It can also be a gNB in ​​an NR system, or a component or part of a base station. It should be understood that the specific technology and specific device form used in the embodiments of this disclosure are not limited. In this disclosure, the network device can provide communication coverage for a specific geographical area and can communicate with terminals located within that coverage area (cell). Furthermore, when it is a vehicle-to-everything (V2X) communication system, the network device can also be an in-vehicle device.

[0057] Furthermore, the terminal involved in this disclosure can also be referred to as a terminal device, user equipment (UE), mobile station (MS), mobile terminal (MT), etc., which is a device that provides voice and / or data connectivity to a user. For example, the terminal can be a handheld device with wireless connectivity, an in-vehicle device, etc. Currently, some examples of terminals include: smartphones, customer premise equipment (CPE), pocket personal computers (PPCs), handheld computers, personal digital assistants (PDAs), laptops, tablets, wearable devices, or in-vehicle devices, etc. In addition, when it is a vehicle-to-everything (V2X) communication system, the terminal device can also be an in-vehicle device. It should be understood that the embodiments of this disclosure do not limit the specific technology or specific device form adopted by the terminal.

[0058] In NR, especially when the communication frequency band is in frequency range 2, high-frequency channels attenuate quickly, so beam-based transmission and reception are required to ensure coverage.

[0059] In related technologies, the unified TCI state of physical channels supporting multiple-transmission-reception-point (M-TRP) transmission is supported. Furthermore, the physical channels support configuration as a single-frequency network (SFN) scheme. For example, the Physical Downlink Control Channel (PDCCH) supports configuration as a single-frequency network (SFN) scheme and supports beam indication based on single downlink control information (DCI).

[0060] For the physical channel of M-TRP transmission configured with single DCI, how to perform unified TCI state indication under the SFN scheme is still under investigation.

[0061] In some embodiments of this disclosure, the beams of the PDCCH, Physical Downlink Shared Channel (PDSCH), Physical Uplink Control Channel (PUCCH), Physical Uplink Shared Channel (PUSCH), and / or reference signals are independently indicated. The PDCCH and PUCCH use a Media Access Control-Control Element (MAC CE) to activate a beam, while the PDSCH and PUSCH use DCI signaling to indicate their respective beams. The reference signals include Channel Status Information-Reference Signals (CSI-RS), Sounding Reference Signals (SRS), Positioning Reference Signals (PRS), Timing Reference Signals (TRS), etc. The CSI-RS includes CSI-RS for channel status information measurement, CSI-RS for beam measurement, or CSI-RS for path loss estimation. SRS includes SRS for codebook-based or non-codebook-based channel state information measurement, SRS for beam measurement, SRS for antenna switching, or SRS for positioning measurement.

[0062] In some embodiments of this disclosure, to reduce signaling overhead, it is desirable to use a unified TCI state. Currently, the unified TCI state may be indicated separately for uplink and downlink, including DL TCI state and UL TCI state, or jointly for uplink and downlink. That is, if the base station indicates a DL TCI state for downlink, then this TCI state can be used for the terminal's PDSCH and PDCCH (e.g., UE-specific PDCCH), and a portion of CSI-RS (e.g., aperiodic CSI-RS); if the base station indicates a TCI state for uplink, then this TCI state can be used for the terminal's PUSCH and PUCCH, and a portion of SRS. If the base station indicates a joint TCI state, then this TCI state can be used for both uplink and downlink channels / reference signals simultaneously.

[0063] In some embodiments of this disclosure, only the unified TCI state of S-TRP is considered, that is, only one TCI state indication method is considered (including joint TCI state, or DL ​​TCI state and UL TCI state). How to indicate the state in the case of M-TRP is still uncertain. In M-TRP, the S-DCI method is included. For PDCCH, PDSCH, PUCCH, and PUSCH, if PXXCH is configured with M-TRP and another part of PYYCH is configured with S-TRP, then when the TCI state indication information indicates two sets of TCI states, even for PXXCH configured with M-TRP, dynamic switching between M-TRP and S-TRP may be required. Therefore, determining which set or both sets of TCI states each channel corresponds to requires additional signaling indication.

[0064] Currently, PDCCH is based on RRC signaling to determine which one or both of the two TCI states each CORESET or CORESET group uses for PDCCH reception.

[0065] PUCCH is also based on RRC signaling to determine which of the two TCI states or sets of states each PUCCH or PUCCH group should be used for sending PUCCH.

[0066] PDSCH is based on the first indication field of PDSCH in DCI to determine which one or both of the two TCI states are used for PDSCH reception.

[0067] PUSCH is determined by the second indicator field of PUSCH in DCI to determine which one or both of the two TCI states each PUSCH is based on for transmission.

[0068] In related technologies, PDCCH can be configured as a Single Frequency Network (SFN) method. The SFN method includes the following two types:

[0069] 1. First Single Frequency Network Scheme SFNschemeA: Same frequency domain resources or the same time domain resources, the same code division multiplexing (CDM) group demodulation reference signal (DMRS) port, different TCI states transmit the same transport block (TB), and PDSCH / PUSCH and parameters in the two TCI states are quasi-co-located.

[0070] 2. Second Single-Frequency Network Scheme SFNschemeB: Same frequency domain resources or same time domain resources, same CDM group DMRS port, different TCI states transmit the same TB, PDSCH / PUSCH and parameters in the two TCI states except for some parameters in the second TCI state (e.g., {Doppler shift, Doppler spread}) quasi co-location.

[0071] When the PDCCH is configured with the SFN method, the configuration of the unified TCI state will be different depending on the capabilities of different terminals. Moreover, the association between the physical shared channel and the N unified TCI states will also be different based on the configured N unified TCI states.

[0072] In view of this, embodiments of this disclosure propose a method for determining the transmission configuration indication state. When the PDCCH of a terminal is configured to communicate based on the SFN scheme, a first indication information and a second indication information are obtained. The first indication information is used to determine a first TCI state including N sets of unified TCI states, and the second indication information is used to determine the unified TCI state corresponding to the physical shared channel based on the first TCI state. This provides an indication method for the association between the physical shared channel and the unified TCI state when the PDCCH is configured to communicate based on the SFN scheme, thereby improving the transmission flexibility of the physical shared channel based on the unified TCI state.

[0073] Figure 2 This is a flowchart illustrating a method for determining a transmission configuration indication state according to an exemplary embodiment, such as... Figure 2 As shown, this method is executed by the terminal and includes the following steps.

[0074] In step S11, the first indication information is obtained.

[0075] The first indication information is used to determine the first TCI state, which includes N sets of unified TCI states, where N is a positive integer greater than 1.

[0076] In step S12, the second indication information is obtained.

[0077] The second indication information is used to determine the second TCI state corresponding to the physical shared channel of the terminal. The second TCI state is one or more of the N unified TCI states. Furthermore, the physical shared channel includes a physical uplink shared channel and / or a physical downlink shared channel, and the terminal's PDCCH is configured to communicate based on the SFN scheme.

[0078] In this embodiment of the disclosure, the transmission configuration indication state determination method can be applied to a scenario where the terminal's PDCCH is configured for communication based on the SFN scheme. Specifically, in this scenario where the PDCCH is configured for communication based on the SFN scheme, the physical shared channel is transmitted using M-TRP scheduled by S-DCI. This embodiment of the disclosure mainly focuses on the scheme for determining and indicating the unified TCI state of the physical shared channel. The physical shared channel can be configured for communication based on the SFN scheme or a non-SFN scheme.

[0079] In this embodiment of the disclosure, the terminal can obtain first indication information, which is used to determine a first TCI state. The first TCI state includes N sets of unified TCI states, where N is a positive integer greater than 1. Each set of unified TCI states may include a joint TCI state, or each set of unified TCI states may include at least one of a DL TCI state and a UL TCI state.

[0080] In this embodiment of the disclosure, the terminal can also obtain second indication information. The second indication information is used to determine the second TCI state corresponding to the terminal's physical shared channel. The second TCI state is one or more of the N unified TCI states. That is, the second indication information can be used to determine which of the N unified TCI states included in the first TCI state corresponding to the physical shared channel. Specifically, which of the N unified TCI states included in the first TCI state corresponding to the physical shared channel refers to which of the N unified TCI states the physical shared channel and / or the DMRS of the physical shared channel is transmitted on.

[0081] By adopting the technical solution of this disclosure embodiment, when the PDCCH of the terminal is configured to communicate based on the SFN scheme, a first indication information and a second indication information are obtained. The first indication information is used to determine a first TCI state including N sets of unified TCI states, and the second indication information is used to determine the unified TCI state corresponding to the physical shared channel based on the first TCI state. This provides an indication method for the association between the physical shared channel and the unified TCI state when the PDCCH is configured to communicate based on the SFN scheme, thereby improving the transmission flexibility of the physical shared channel based on the unified TCI state.

[0082] In this embodiment of the disclosure, the PDCCH can be configured to communicate based on the SFN scheme, either by configuring the PDCCH to communicate based on the SFNschemeA scheme or by configuring the PDCCH to communicate based on the SFNschemeB scheme.

[0083] Optionally, in some embodiments of this disclosure, the second indication information can be used to indicate one or more of the N unified TCI states as the second TCI state. In this case, the corresponding situation is that the terminal supports only the PDCCH being configured for SFN-based communication, meaning the Physical Shared Channel can be configured for non-SFN-based communication.

[0084] For example, when the terminal supports only PDCCH being configured for communication based on the SFN scheme A, the UE can only determine one or more unified TCI states from N unified TCI states as the second TCI state after determining that the physical shared channel is configured for non-SFN scheme communication.

[0085] For example, when the terminal's PDCCH is configured for communication based on the SFNschemeB scheme, if the Physical Shared Channel is also configured for communication based on the SFNschemeB scheme, the UE cannot select one of the N unified TCI states as the second TCI state based on the second indication information. On the other hand, when the terminal's PDCCH is configured for communication based on the SFNschemeB scheme, if the Physical Shared Channel can be configured for communication based on a non-SFN scheme, then the UE can select one or more of the N unified TCI states as the second TCI state based on the second indication information.

[0086] When a terminal supports only its PDCCH being configured for SFN-based communication, its PDSCH can also be configured for the same SFN scheme as the PDCCH. In this case, the terminal's second indication information can only indicate multiple unified TCI states out of N unified TCI states as the second TCI state of the Physical Shared Channel. In this situation, the terminal does not expect the second indication information to indicate one of the N unified TCI states as the second TCI state.

[0087] Alternatively, the terminal expects the second indication information to designate multiple unified TCI states from among the N unified TCI states as the second TCI state. This can also be understood as the terminal abandoning transmission on that physical shared channel if the second indication information designates one of the N unified TCI states as the second TCI state.

[0088] In this embodiment of the disclosure, the second indication information can also be used to indicate only multiple unified TCI states out of N unified TCI states as the second TCI state. In this case, the corresponding situation is that the terminal does not support only the PDCCH being configured for SFN-based communication; that is, the Physical Shared Channel must be configured with the same SFN scheme as the PDCCH.

[0089] In one example, when the terminal does not support PDCCH being configured for SFNschemeA-based communication, the physical shared channel is configured for SFNschemeA.

[0090] In one example, when the terminal does not support PDCCH being configured for SFNschemeB-based communication, the Physical Shared Channel is configured for SFNschemeB-based communication. In this case, multiple unified TCI states from the N unified TCI states indicated by the second indication information can be used as the second TCI state. That is, the terminal does not expect the second indication information to indicate one of the N unified TCI states as the second TCI state. Alternatively, the terminal may expect the second indication information to indicate multiple of the N unified TCI states as the second TCI state. It can also be understood that if the second indication information indicates one of the N unified TCI states as the second TCI state, the terminal can abandon transmission on that Physical Shared Channel.

[0091] In this embodiment of the present disclosure, the first indication information received by the terminal may include information received L times, wherein the information received ith time is used to indicate K. i Set a unified TCI state, where L is a positive integer and i is a positive integer less than or equal to L.

[0092] In one example, the first indication information received by the terminal may include information received L times, where the information received in the i-th time indicates K. i Set a unified TCI state. K varies depending on the value of i. i The values ​​can be different or the same. For example, if K1 is 1, meaning the first received information corresponds to one unified TCI state, then K2 can be 1, 2, or other values. That is, the second received information can correspond to one unified TCI state, two unified TCI states, or more unified TCI states. And so on.

[0093] In the example above, optionally, the L received messages can come from H transmission points, where H is a positive integer less than or equal to L.

[0094] At this point, the N unified TCI states included in the first TCI state can be determined as follows: based on K i Determined by a unified TCI state; or based on K i Unified TCI state and K jThe set of unified TCI states is determined, where j is a positive integer less than or equal to L, and i is not equal to j.

[0095] In this embodiment of the disclosure, N sets of unified TCI states are based on K i When determining the unified TCI state, i can be equal to L, that is, K is determined based on the information received in the Lth reception. i The unified TCI state is used, and the information received in the Lth time is the information received most recently, and then based on K i N sets of unified TCI states are determined. Taking the example of the terminal receiving L messages, the K values ​​indicated by the Lth received message can be used as a basis. L A set of unified TCI states determines N sets of unified TCI states, where i = L. Where K i It can be K1, K2, ..., K L The maximum value in the range can also be different from K1, K2, ..., K. L The maximum value in K. Furthermore, when K... L When = 1, then the information received in the (L-1)th time indicates K. L-1 The number of unified TCI states is determined to be N, until K is obtained. L-p The value of is greater than 1, and p is a positive integer that is 0 or less than L.

[0096] In this embodiment of the disclosure, N sets of unified TCI states are based on K i Unified TCI state and K j When determining the unified TCI state, i can be equal to L, that is, K is determined based on the information received in the Lth reception. i In a unified TCI state, the information received in the Lth reception is the most recent reception. Furthermore, j can be less than i, and K is determined based on the information received in the jth reception. j Given a unified TCI state, the information received in the j-th reception precedes the information received in the i-th reception, and the information received in the L-th reception does not correspond to K. j Update at least one of the unified TCI states.

[0097] Taking the example of the terminal receiving L messages, if the terminal indicates K in the j-th message... jThe unified TCI state is used, and the terminal receives information indicating K in the Lth time. i Set of unified TCI state, where K i The unifiedTCI state does not include K. j Updates to at least one of the unified TCI states in a set of unified TCI states can be based on K. j Unified TCI state and K i The N sets of unified TCI states are determined by a set of unified TCI states. For example, the terminal was in the Kth previous... j The received information indicates two unified TCI states, including the first and second sets, and the terminal's most recent one is the Kth set. L The received information indicates a unified TCI state, and this unified TCI state corresponds to the Kth... j The first unified TCI state indicated in the received information was updated, and the Kth state was updated. j If the second unified TCI state indicated in the received information has not been updated, then it can be based on the Kth... L The first set of unified TCI states and the Kth set of information received were updated in the next batch of information. j The second set of unified TCI states in the received information determines N sets of unified TCI states, where N = 2.

[0098] Figure 3 This is a schematic diagram illustrating a method for determining N sets of unified TCI states based on at least one received information according to an exemplary embodiment. Figure 3 As shown, the terminal receives L pieces of information as the first indication information, where the Lth received information is the most recently received information in the first indication information. The Lth received information indicates two sets of unified TCI states, namely unified TCI state1 and unified TCI state2. At this time, it can be directly determined that the two sets of unified TCI states indicated by the Lth received information, that is, unified TCI state1 and unified TCI state2, are N sets of unified TCI states.

[0099] Figure 4This is a schematic diagram illustrating a method for determining N sets of unified TCI states based on at least one received information according to an exemplary embodiment. Figure 4 As shown, the terminal receives L pieces of information as the first indication information. The Lth received information is the most recently received information in the first indication information, and the i-th received information is the information received before the Lth received information. The i-th received information indicates two sets of unified TCI states, namely unified TCI state1 and unified TCI state2. The Lth received information indicates one set of unified TCI states, namely unified TCI state1', where unified TCI state1' is an update of the unified TCI state1 indicated by the i-th received information. At this point, unified TCI state1' and unified TCI state2 can be identified as N sets of unified TCI states.

[0100] The technical solution of this disclosure provides a method for configuring a unified TCI state when the terminal's PDCCH is configured for SFN-based communication by determining a first TCI state including at least one received information through a first indication information. This improves the transmission flexibility of the PDCCH based on the unified TCI state and, consequently, enhances the efficiency of UE configuration of shared channels.

[0101] Figure 5 This is a flowchart illustrating a method for determining a transmission configuration indication state according to an exemplary embodiment, such as... Figure 5 As shown, the method includes the following steps.

[0102] In step S21, capability information is sent.

[0103] In step S22, the first indication information is obtained.

[0104] The first indication information is the same as the first indication information in the above embodiments, and you can refer to the relevant descriptions in the above embodiments for details.

[0105] In step S23, the second indication information is obtained.

[0106] The second indication information is the same as the second indication information in the above embodiments, and can be found in the relevant descriptions of the above embodiments. Furthermore, the physical shared channel includes a physical uplink shared channel and / or a physical downlink shared channel, and the terminal's PDCCH is configured for communication based on the SFN scheme.

[0107] In this embodiment of the disclosure, the terminal may send capability information to the network device before obtaining the first indication information. The capability information can be used to indicate that the terminal supports PDCCH being configured only for SFN-based communication, or to indicate that the terminal does not support PDCCH being configured only for SFN-based communication.

[0108] In this embodiment of the disclosure, at least one control resource set (CORESET) of the terminal can be configured to be associated with multiple unified TCI states among N unified TCI states, that is, the PDCCH within the CORESET is received based on multiple unified TCI states. The CORESET can be a CORESET used for transmitting PDCCH.

[0109] In this embodiment of the disclosure, the first indication information may be carried in the Media Access Control Unit (MAC CE), or the first indication information may be carried in the Downlink Control Information (DCI) and the Media Access Control Unit (MAC CE).

[0110] When the first indication information is carried in the downlink control information (DCI) and the media access control unit (MAC CE), the multiple code points in the TCI state field used by the MAC CE to activate the DCI correspond one-to-one with K sets of unified TCI states. The TCI state field of the DCI is used to indicate one of the multiple code points. Among the multiple code points in the TCI state field of the DCI activated by the MAC CE, at least one code point corresponds to multiple sets of unified TCI states. That is, in the K sets of unified TCI states corresponding to at least one code point, K is a positive integer greater than 1.

[0111] When the first indication information is carried in the Media Access Control Unit (MAC CE), the MAC CE is used to activate K sets of unified TCI states. These K sets of unified TCI states correspond to the first code point of the TCI state field of the DCI. That is, at this time, the MAC CE only activates one code point of the TCI state field of the DCI, namely the first code point. Therefore, N sets of unified TCI states can be determined based on the K sets of unified TCI states corresponding to the first code point.

[0112] In this disclosure, the number of physical shared channels can be one or more. Further, the number of physical shared channels can be understood as the number of physical channel occasions. These multiple physical shared channels can be transmitted based on TDM, FDM, SDM (two CDM DMRS port groups), or SFN schemes. Multiple physical shared channels can transmit one or more identical or different TBs. When there are two physical shared channels, and they are transmitted based on FDM, SDM, or TDM schemes, a one-to-one mapping method can be used to configure the mapping relationship between the physical shared channels and the two sets of unified TCI states. When there are more than two physical shared channels, for example, four, and they are transmitted based on the TDM scheme, the first and third physical shared channels can be set to correspond to the first set of unified TCI states, and the second and fourth physical shared channels can correspond to the second set of unified TCI states; or the first and second physical shared channels can be set to correspond to the first set of unified TCI states, and the third and fourth physical shared channels can correspond to the second set of unified TCI states. When there are more than two physical shared channels, such as eight, and the transmission is based on a TDM scheme, the 1st, 3rd, 5th, and 7th physical shared channels can be configured to correspond to the first unified TCI state, and the 2nd, 4th, 6th, and 8th physical shared channels can correspond to the second unified TCI state; or the 1st, 2nd, 5th, and 6th physical shared channels can be configured to correspond to the first unified TCI state, and the 3rd, 4th, 7th, and 8th physical shared channels can correspond to the second unified TCI state. And so on.

[0113] Optionally, in some embodiments of this disclosure, N sets of unified TCI states can correspond one-to-one with multiple TRPs, that is, one of the N sets of unified TCI states can correspond to one of the multiple TRPs.

[0114] Optionally, in some embodiments of this disclosure, the N sets of unified TCI states may not correspond one-to-one with multiple TRPs; that is, one of the N sets of unified TCI states may correspond to multiple TRPs.

[0115] Figure 6 This is a flowchart illustrating a transmission configuration indication state configuration method according to an exemplary embodiment, such as... Figure 6 As shown, this method is executed by a network device and includes the following steps.

[0116] In step S31, the first instruction information is sent.

[0117] The first indication information is the same as the first indication information in the above embodiments, and you can refer to the relevant descriptions in the above embodiments for details.

[0118] In step S32, a second instruction message is sent.

[0119] The second indication information is the same as the second indication information in the above embodiments, and can be found in the relevant descriptions of the above embodiments. Furthermore, the physical shared channel includes a physical uplink shared channel and / or a physical downlink shared channel, and the terminal's PDCCH is configured for communication based on the SFN scheme.

[0120] In this embodiment of the disclosure, the transmission configuration indication state configuration method can be applied to the unified TCI state configuration and indication of the physical shared channel when the terminal's PDCCH is configured for SFN-based communication and M-TRP transmission based on S-DCI scheduling. In this case, the physical shared channel can be configured for either SFN-based or non-SFN-based communication.

[0121] In this embodiment of the disclosure, the network device may send first indication information for configuring a first TCI state. The first TCI state includes N unified TCI states, where N is a positive integer greater than 1. Each unified TCI state may include a joint TCI state, or each unified TCI state may include at least one of a DLTCI state and a UL TCI state.

[0122] In this embodiment of the disclosure, the network device may further send second indication information. This second indication information is used to configure a second TCI state corresponding to the physical shared channel of the terminal. The second TCI state is one or more of the N unified TCI states. That is, the second indication information can be used to configure which of the N unified TCI states included in the first TCI state corresponding to the physical shared channel. Here, "which of the N unified TCI states included in the first TCI state corresponding to the physical shared channel" refers to which of the N unified TCI states the physical shared channel and / or the DMRS of the physical shared channel is transmitted based on.

[0123] By employing the technical solution of this disclosure embodiment, when configuring the PDCCH of the terminal for SFN-based communication, a first indication information and a second indication information are sent. The first indication information is used to configure a first TCI state including N sets of unified TCI states, and the second indication information is used to configure the unified TCI state corresponding to the physical shared channel based on the first TCI state. This provides an indication method for the association between the physical shared channel and the unified TCI state when the PDCCH is configured for SFN-based communication, thereby improving the transmission flexibility of the physical shared channel based on the unified TCI state.

[0124] In this embodiment of the disclosure, the PDCCH can be configured to communicate based on the SFN scheme, either by configuring the PDCCH to communicate based on the SFNschemeA scheme or by configuring the PDCCH to communicate based on the SFNschemeB scheme.

[0125] In this embodiment of the disclosure, the second indication information can be used to configure one or more of the N unified TCI states as the second TCI state. In this case, the corresponding situation is that the terminal supports only the PDCCH being configured for SFN-based communication, meaning the physical shared channel can be configured for non-SFN-based communication. It should be noted that when the terminal supports only the PDCCH being configured for SFN-based communication, the terminal's PDSCH can also be configured for the same SFN scheme as the PDCCH. In this case, the terminal's second indication information can only indicate multiple of the N unified TCI states as the second TCI state. That is, the terminal does not expect the second indication information to indicate one of the N unified TCI states as the second TCI state, or the terminal expects the second indication information to indicate multiple of the N unified TCI states as the second TCI state. It can also be understood that if the second indication information indicates one of the N unified TCI states as the second TCI state, the terminal can abandon the transmission of that physical shared channel.

[0126] In this embodiment of the disclosure, the second indication information can also be used to configure only multiple unified TCI states from the N unified TCI states as the second TCI state. In this case, the corresponding situation is that the terminal does not support only the PDCCH being configured for SFN-based communication; that is, the physical shared channel must be configured with the same SFN scheme as the PDCCH. In other words, the terminal does not expect the second indication information to indicate one of the N unified TCI states as the second TCI state. Or, the terminal expects the second indication information to indicate multiple of the N unified TCI states as the second TCI state. It can also be understood that if the second indication information indicates one of the N unified TCI states as the second TCI state, the terminal can abandon the transmission of that physical shared channel.

[0127] In this embodiment of the disclosure, the first indication information sent by the network device may include information sent L times, wherein the information sent in the i-th time indicates K. i Set a unified TCI state. K varies depending on the value of i. i The values ​​can be different or the same. For example, if K1 is 1, meaning the first message sent corresponds to one unified TCI state, then K2 can be 1, 2, or other values. That is, the second message sent can correspond to one unified TCI state, two unified TCI states, or more unified TCI states. And so on.

[0128] In the example above, optionally, the L messages can be sent from H transmission points, where H is a positive integer less than or equal to L.

[0129] At this point, the N unified TCI states included in the first TCI state can be determined as follows: based on K i Determined by a unified TCI state; or based on K i Unified TCI state and K j The set of unified TCI states is determined, where j is a positive integer less than or equal to L, and i is not equal to j.

[0130] In this embodiment of the disclosure, N sets of unified TCI states are based on K iWhen determining the unified TCI state, i can be equal to L, that is, K is determined based on the information sent in the Lth transmission. i A unified TCI state is used, where the information sent in the Lth transmission is the most recently transmitted information, and then based on K... i A set of unified TCI states determines N sets of unified TCI states.

[0131] In this embodiment of the disclosure, N sets of unified TCI states are based on K i Unified TCI state and K j When determining the unified TCI state, i can be equal to L, that is, K is determined based on the information sent in the Lth transmission. i The unified TCI state is used, and the information sent in the Lth transmission is the most recent transmission. Furthermore, j can be less than i, and K is determined based on the information sent in the jth transmission. j Given a unified TCI state, the message sent j is sent before the message sent i, and the message sent L does not affect K. j Update at least one of the unified TCI states.

[0132] Figure 7 This is a flowchart illustrating a transmission configuration indication state configuration method according to an exemplary embodiment, such as... Figure 7 As shown, the method includes the following steps.

[0133] In step S41, capability information is received.

[0134] In step S42, the first indication information is obtained.

[0135] The first indication information is the same as the first indication information in the above embodiments, and you can refer to the relevant descriptions in the above embodiments for details.

[0136] In step S43, the second indication information is obtained.

[0137] The second indication information is the same as the second indication information in the above embodiments, and can be found in the relevant descriptions of the above embodiments. Furthermore, the physical shared channel includes a physical uplink shared channel and / or a physical downlink shared channel, and the terminal's PDCCH is configured for communication based on the SFN scheme.

[0138] In this embodiment of the disclosure, the network device may receive capability information sent by the terminal before sending the first indication information. The capability information can be used to indicate that the terminal supports PDCCH-only communication configured for SFN scheme, or to indicate that the terminal does not support PDCCH-only communication configured for SFN scheme.

[0139] In this embodiment of the disclosure, at least one control resource set (CORESET) of the terminal can be configured to be associated with multiple unified TCI states among N unified TCI states, that is, the PDCCH within the CORESET is received based on multiple unified TCI states. The CORESET can be a CORESET used for transmitting PDCCH.

[0140] In this embodiment of the disclosure, the first indication information may be carried in the Media Access Control Unit (MAC CE), or the first indication information may be carried in the Downlink Control Information (DCI) and the Media Access Control Unit (MAC CE).

[0141] When the first indication information is carried in the downlink control information (DCI) and the media access control unit (MAC CE), the multiple code points in the TCI state field used by the MAC CE to activate the DCI correspond one-to-one with K sets of unified TCI states. The TCI state field of the DCI is used to indicate one of the multiple code points. Among the multiple code points in the TCI state field of the DCI activated by the MAC CE, at least one code point corresponds to multiple sets of unified TCI states. That is, in the K sets of unified TCI states corresponding to at least one code point, K is a positive integer greater than 1.

[0142] When the first indication information is carried in the Media Access Control Unit (MAC CE), the MAC CE is used to activate K sets of unified TCI states. These K sets of unified TCI states correspond to the first code point of the TCI state field of the DCI. That is, at this time, the MAC CE only activates one code point of the TCI state field of the DCI, namely the first code point. Therefore, N sets of unified TCI states can be determined based on the K sets of unified TCI states corresponding to the first code point.

[0143] In this disclosure, the number of physical shared channels can be one or more. Further, the number of physical shared channels can be understood as the number of physical channel occasions. These multiple physical shared channels can be transmitted based on TDM, FDM, SDM (two CDM DMRS port groups), or SFN schemes. Multiple physical shared channels can transmit one or more identical or different TBs. When there are two physical shared channels, and they are transmitted based on FDM, SDM, or TDM schemes, a one-to-one mapping method can be used to configure the mapping relationship between the physical shared channels and the two sets of unified TCI states. When there are more than two physical shared channels, for example, four, and they are transmitted based on the TDM scheme, the first and third physical shared channels can be set to correspond to the first set of unified TCI states, and the second and fourth physical shared channels can correspond to the second set of unified TCI states; or the first and second physical shared channels can be set to correspond to the first set of unified TCI states, and the third and fourth physical shared channels can correspond to the second set of unified TCI states. When there are more than two physical shared channels, such as eight, and the transmission is based on a TDM scheme, the 1st, 3rd, 5th, and 7th physical shared channels can be configured to correspond to the first unified TCI state, and the 2nd, 4th, 6th, and 8th physical shared channels can correspond to the second unified TCI state; or the 1st, 2nd, 5th, and 6th physical shared channels can be configured to correspond to the first unified TCI state, and the 3rd, 4th, 7th, and 8th physical shared channels can correspond to the second unified TCI state. And so on.

[0144] In this implementation, N sets of unified TCI states can correspond one-to-one with multiple TRPs, that is, one of the N sets of unified TCI states can correspond to one of the multiple TRPs.

[0145] It is understood that the technical implementation involved in the process of configuring the transmission configuration indication state of the network device in the embodiments of this disclosure can be applied to the process of determining the transmission configuration indication state of the terminal in the embodiments of this disclosure. Therefore, for some technical implementations of the process of configuring the transmission configuration indication state of the network device that are not described in detail, please refer to the relevant descriptions in the implementation process of determining the transmission configuration indication state of the terminal, which will not be repeated here.

[0146] It is understood that the transmission configuration indication state determination / configuration method provided in this disclosure is applicable to the process of determining or configuring the transmission configuration indication state during the interaction between the terminal and the network device. The process of determining / configuring the transmission configuration indication state through interaction between the terminal and the network device will not be described in detail in this disclosure.

[0147] It should be noted that those skilled in the art will understand that the various implementation methods / embodiments described above in this disclosure can be used in conjunction with the foregoing embodiments, or they can be used independently. Whether used alone or in conjunction with the foregoing embodiments, the implementation principle is similar. In this disclosure, some embodiments are described as implementations used together. Of course, those skilled in the art will understand that such illustrative examples are not intended to limit the embodiments of this disclosure.

[0148] Based on the same concept, embodiments of this disclosure also provide a transmission configuration indication state determination device.

[0149] It is understood that the transmission configuration indication state determination device provided in this disclosure includes hardware structures and / or software modules corresponding to each function in order to achieve the above-mentioned functions. In conjunction with the units and algorithm steps of the various examples disclosed in this disclosure, this disclosure can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed by hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the technical solutions of this disclosure.

[0150] Figure 8 This is a block diagram illustrating a transmission configuration indication state determination apparatus according to an exemplary embodiment. (Refer to...) Figure 8 The device 100 includes a receiving unit 110.

[0151] The receiving unit 110 is configured to acquire first indication information, which is used to determine a first transmission configuration indication state (TCI state). The first TCI state includes N sets of unified transmission configuration indication states (unified TCI states), where N is a positive integer greater than 1.

[0152] The receiving unit is also configured to acquire second indication information, which is used to determine the second TCI state corresponding to the physical shared channel of the terminal. The second TCI state is one or more of the N unified TCI states.

[0153] The physical shared channel includes a physical uplink shared channel and / or a physical downlink shared channel. The terminal's physical downlink control channel is configured to communicate using a single-frequency network (SFN) scheme. The first indication information and the second indication information are received through the physical downlink control channel.

[0154] In this embodiment of the disclosure, the physical shared channel is configured to communicate based on a non-SFN scheme; the physical downlink control channel is configured with a first single-frequency network scheme SFNschemeA, and / or the physical downlink control channel is configured with a second single-frequency network scheme SFNschemeB; the second indication information is used to indicate one or more of the N unified TCI states as the second TCI state.

[0155] In this embodiment of the disclosure, the second indication information is used to indicate multiple unified TCI states among N unified TCI states as the second TCI state.

[0156] In this embodiment of the disclosure, the physical shared channel is configured to communicate based on the same SFN scheme as the physical downlink control channel.

[0157] In this embodiment of the disclosure, the SFN scheme configured for the physical downlink control channel is either a first single-frequency network scheme SFNschemeA or a second single-frequency network scheme SFNschemeB.

[0158] In this embodiment of the disclosure, the first indication information sent includes information sent L times, and the information sent in the i-th time is used to indicate K. i N sets of unified TCI states, where L is a positive integer and i is a positive integer less than or equal to L; the N sets of unified TCI states are based on the K i The N sets of unified TCI states are determined; or the N sets of unified TCI states are based on the K. i Unified TCI state and K j The set of unified TCI states is determined, where j is a positive integer less than or equal to L, and i is not equal to j.

[0159] In this embodiment of the disclosure, N sets of unified TCI states are based on the K i The determination of a unified TCI state includes: i = L, and determining K based on the information sent in the Lth transmission. iThe unified TCI state is defined as the Lth transmitted information, which is the most recently transmitted information.

[0160] In this embodiment of the disclosure, N sets of unified TCI states are based on the K i Unified TCI state and K j The determination of a unified TCI state includes: i = L, and determining K based on the information sent in the Lth transmission. i A unified TCI state is set, where j is less than i, and K is determined based on the information sent in the j-th transmission. j The unified TCI state, the information sent in the Lth transmission did not address the K. j Update at least one of the unified TCI states.

[0161] In this embodiment of the disclosure, the method further includes: sending capability information before obtaining the first indication information; the capability information is used to indicate that the terminal supports communication with only the physical downlink control channel configured as SFN scheme and the physical shared channel configured as non-SFN scheme; or the capability information is used to indicate that the terminal does not support communication with only the physical downlink control channel configured as SFN scheme.

[0162] In this embodiment of the disclosure, at least one control resource set CORESET of the terminal is configured to be associated with multiple unified TCI states among N unified TCI states.

[0163] In this embodiment of the disclosure, the first indication information is carried in the Media Access Control Unit (MAC CE) and / or in the Downlink Control Information (DCI).

[0164] In this embodiment of the disclosure, the first indication information is carried in the MAC CE. The MAC CE is used to activate K sets of unified TCI states, and the K sets of unified TCI states correspond to the first code point of the TCI indication field of the DCI.

[0165] In this embodiment of the disclosure, the first indication information is carried in the MAC CE and the DCI. The MAC CE is used to activate multiple code points in the TCI state field of the DCI, which correspond one-to-one with K sets of unified TCI states. The TCI state field of the DCI is used to indicate one of the multiple code points.

[0166] In this embodiment of the disclosure, at least one of the multiple code points corresponds to multiple sets of unified TCI states.

[0167] In this embodiment of the disclosure, there are multiple physical shared channels.

[0168] In this embodiment of the disclosure, N sets of unified TCI states correspond to multiple transmission and receiving points.

[0169] Figure 9 This is a block diagram illustrating a transmission configuration indication status configuration device according to an exemplary embodiment. (Refer to...) Figure 9 The device 200 includes a transmitting unit 210.

[0170] The sending unit 210 is configured to send first indication information, which is used to configure a first transmission configuration indication state (TCI state). The first TCI state includes N sets of unified transmission configuration indication states (unified TCI states), where N is a positive integer greater than 1.

[0171] The transmitting unit 210 is also configured to transmit second indication information, which is used to configure the second TCI state corresponding to the physical shared channel of the terminal. The second TCI state is one or more of the N unified TCI states.

[0172] The physical shared channel includes a physical uplink shared channel and / or a physical downlink shared channel. The terminal's physical downlink control channel is configured to communicate using a single-frequency network (SFN) scheme. The first indication information and the second indication information are received through the physical downlink control channel.

[0173] In this embodiment of the disclosure, the physical shared channel is configured to communicate based on a non-SFN scheme; the physical downlink control channel is configured with a first single-frequency network scheme SFNschemeA, and / or the physical downlink control channel is configured with a second single-frequency network scheme SFNschemeB; the second indication information is used to configure one or more of the N unified TCI states as the second TCI state.

[0174] In this embodiment of the disclosure, the second indication information is used to configure multiple unified TCI states among N unified TCI states as a second TCI state.

[0175] In this embodiment of the disclosure, the physical shared channel is configured to communicate based on the same SFN scheme as the physical downlink control channel.

[0176] In this embodiment of the disclosure, the SFN scheme configured for the physical downlink control channel is either a first single-frequency network scheme SFNschemeA or a second single-frequency network scheme SFNschemeB.

[0177] In this embodiment of the disclosure, the first indication information is sent L times, and the information sent ith time is used to indicate K. i There are N sets of unified TCI states, where L is a positive integer and i is a positive integer less than or equal to L; N sets of unified TCI states are based on K i A set of unified TCI states is determined; or N sets of unified TCI states are based on K. i Set unified TCIstate and K j The set of unified TCI states is determined, where j is a positive integer less than or equal to L, and i is not equal to j.

[0178] In this embodiment of the disclosure, N sets of unified TCI states are based on K i The unified TCI state is determined, including: i = L, K is determined based on the information sent in the Lth transmission. i The unified TCI state is used, and the information sent in the Lth transmission is the most recent transmission.

[0179] In this embodiment of the disclosure, N sets of unified TCI states are based on K i Unified TCI state and K j The unified TCI state is determined, including: i = L, K is determined based on the information sent in the Lth transmission. i Set a unified TCI state, j is less than i, and K is determined based on the information sent in the j-th transmission. j The unified TCI state, the Lth message sent did not match K. j Update at least one of the unified TCI states.

[0180] In this embodiment of the disclosure, the method further includes: receiving capability information before sending the first indication information; the capability information is used to indicate that the terminal supports communication based on the SFN scheme with only the physical downlink control channel configured; or the capability information is used to indicate that the terminal does not support communication based on the SFN scheme with only the physical downlink control channel configured.

[0181] In this embodiment of the disclosure, at least one control resource set CORESET of the terminal is configured to be associated with multiple unified TCI states among N unified TCI states.

[0182] In this embodiment of the disclosure, the first indication information is carried in the Media Access Control Unit (MAC CE) and / or in the Downlink Control Information (DCI).

[0183] In this embodiment of the disclosure, the first indication information is carried in the MAC CE. The MAC CE is used to activate K sets of unified TCI states, and the K sets of unified TCI states correspond to the first code point of the TCI indication field of the DCI.

[0184] In this embodiment of the disclosure, the first indication information is carried in the MAC CE and the DCI. The MAC CE is used to activate multiple code points in the TCI state field of the DCI, which correspond one-to-one with K sets of unified TCI states. The TCI state field of the DCI is used to indicate one of the multiple code points.

[0185] In this embodiment of the disclosure, at least one of the multiple code points corresponds to multiple sets of unified TCI states.

[0186] In this embodiment of the disclosure, there are multiple physical shared channels.

[0187] In this embodiment of the disclosure, N sets of unified TCI states correspond to multiple transmission and receiving points.

[0188] Regarding the apparatus in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments related to the method, and will not be elaborated upon here.

[0189] Figure 10 This is a block diagram illustrating a communication system according to an exemplary embodiment. (Refer to...) Figure 10 The communication system 300 includes a terminal 310 and a network device 320.

[0190] The terminal is used to execute any of the transmission configuration indication state determination methods provided in the embodiments of this disclosure, and the network device is used to execute any of the transmission configuration indication state configuration methods provided in the embodiments of this disclosure.

[0191] Figure 11 This is a block diagram illustrating an apparatus 400 for determining a transmission configuration indication state according to an exemplary embodiment. For example, apparatus 400 may be a mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet device, medical device, fitness equipment, personal digital assistant, etc.

[0192] Reference Figure 11 The device 400 may include one or more of the following components: processing component 402, memory 404, power component 406, multimedia component 408, audio component 410, input / output (I / O) interface 412, sensor component 414, and communication component 416.

[0193] Processing component 402 typically controls the overall operation of device 400, such as operations associated with display, telephone calls, data communication, camera operation, and recording. Processing component 402 may include one or more processors 420 to execute instructions to perform all or part of the steps of the methods described above. Furthermore, processing component 402 may include one or more modules to facilitate interaction between processing component 402 and other components. For example, processing component 402 may include a multimedia module to facilitate interaction between multimedia component 408 and processing component 402.

[0194] Memory 404 is configured to store various types of data to support the operation of device 400. Examples of such data include instructions for any application or method operating on device 400, contact data, phonebook data, messages, pictures, videos, etc. Memory 404 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0195] The power supply component 406 provides power to the various components of the device 400. The power supply component 406 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power to the device 400.

[0196] Multimedia component 408 includes a screen that provides an output interface between the device 400 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may sense not only the boundaries of the touch or swipe action but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 408 includes a front-facing camera and / or a rear-facing camera. When the device 400 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0197] Audio component 410 is configured to output and / or input audio signals. For example, audio component 410 includes a microphone (MIC) configured to receive external audio signals when device 400 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 404 or transmitted via communication component 416. In some embodiments, audio component 410 also includes a speaker for outputting audio signals.

[0198] I / O interface 412 provides an interface between processing component 402 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0199] Sensor assembly 414 includes one or more sensors for providing status assessments of various aspects of device 400. For example, sensor assembly 414 may detect the on / off state of device 400, the relative positioning of components such as the display and keypad of device 400, changes in the position of device 400 or a component of device 400, the presence or absence of user contact with device 400, the orientation or acceleration / deceleration of device 400, and temperature changes of device 400. Sensor assembly 414 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 414 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 414 may also include an accelerometer, a gyroscope, a magnetometer, a pressure sensor, or a temperature sensor.

[0200] Communication component 416 is configured to facilitate wired or wireless communication between device 400 and other devices. Device 400 can access wireless networks based on communication standards, such as WiFi, 2G, or 3G, or combinations thereof. In one exemplary embodiment, communication component 416 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 416 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0201] In an exemplary embodiment, the apparatus 400 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the methods described above.

[0202] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 404 including instructions, which can be executed by a processor 420 of the device 400 to perform the above-described method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0203] Figure 12 This is a block diagram illustrating an apparatus 500 for transmitting a configuration indication state configuration method according to an exemplary embodiment. For example, apparatus 500 may be provided as a server. (Refer to...) Figure 12 The apparatus 500 includes a processing component 522, which further includes one or more processors, and memory resources represented by memory 532 for storing instructions, such as application programs, that can be executed by the processing component 522. The application programs stored in memory 532 may include one or more modules, each corresponding to a set of instructions. Furthermore, the processing component 522 is configured to execute instructions to perform the aforementioned transfer configuration indication state configuration method.

[0204] Device 500 may also include a power supply component 526 configured to perform power management of device 500, a wired or wireless network interface 550 configured to connect device 500 to a network, and an input / output (I / O) interface 558. Device 500 may operate on an operating system stored in memory 532, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, or similar.

[0205] It can be further understood that in this disclosure, "multiple" refers to two or more, and other quantifiers are similar. "And / or" describes the relationship between related objects, indicating that three relationships can exist; for example, A and / or B can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. The singular forms "a," "the," and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0206] It is further understood that the meaning of words such as “in response to” and “if” used in this disclosure depends on the context and the actual usage scenario. For example, the word “in response to” as used herein can be interpreted as “when”, “when”, or “if”.

[0207] It is further understood that the terms "first," "second," etc., are used to describe various types of information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another, and do not indicate a specific order or degree of importance. In fact, the expressions "first," "second," etc., are completely interchangeable. For example, without departing from the scope of this disclosure, first information can also be referred to as second information, and similarly, second information can also be referred to as first information.

[0208] 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.

[0209] 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 disclosure 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.

[0210] 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 method for determining a transmission configuration indication status, characterized in that, The method is executed by a terminal, and the method includes: Send capability information, wherein the capability information is used to indicate that the terminal supports communication with only the physical downlink control channel configured based on the SFN scheme; or the capability information is used to indicate that the terminal does not support communication with only the physical downlink control channel configured based on the SFN scheme; Obtain first indication information, the first indication information is used to determine a first transmission configuration indication state (TCI state), the first TCI state includes N sets of unified transmission configuration indication states (unified TCI states), where N is a positive integer greater than 1; The second indication information is obtained to determine the second TCI state corresponding to the physical shared channel of the terminal. The second TCI state is one or more of the N unified TCI states. The physical shared channel includes a physical uplink shared channel and / or a physical downlink shared channel. The physical downlink control channel of the terminal is configured to communicate based on the single-frequency network (SFN) scheme. The first indication information and the second indication information are received through the physical downlink control channel. Wherein, in response to the terminal supporting only the physical downlink control channel being configured for SFN-based communication, the second indication information is used to indicate one or more of the N unified TCI states as the second TCI state; In response to the terminal not supporting only the physical downlink control channel being configured for SFN-based communication, the second indication information is used to indicate multiple unified TCI states among the N unified TCI states as the second TCI state.

2. The method according to claim 1, characterized in that, The physical shared channel is configured for communication based on a non-SFN scheme; The physical downlink control channel is configured with a first single-frequency network scheme SFNschemeA, and / or the physical downlink control channel is configured with a second single-frequency network scheme SFNschemeB.

3. The method according to claim 1, characterized in that, The physical shared channel is configured with the same SFN scheme as the physical downlink control channel.

4. The method according to claim 3, characterized in that, The physical downlink control channel is configured with either the first single-frequency network scheme SFNschemeA or the second single-frequency network scheme SFNschemeB.

5. The method according to claim 1, characterized in that, The first received indication information includes information received L times, and the information received in the i-th time is used to indicate K. i Set a unified TCI state, where L is a positive integer and i is a positive integer less than or equal to L; The N sets of unified TCI states are based on the K i Determined by a unified TCI state; or The N sets of unified TCI states are based on the K i Unified TCI state and K j The set of unified TCIstate is determined, where j is a positive integer less than or equal to L, and i is not equal to j.

6. The method according to claim 5, characterized in that, The N sets of unified TCI states are based on the K i The unified TCI state is determined, including: The i=L, K is determined based on the information received in the Lth reception. i The Lth received information is the most recently received information, belonging to the unified TCI state.

7. The method according to claim 6, characterized in that, The N sets of unified TCI states are based on the K i Unified TCI state and K j The unified TCI state is determined, including: The i=L, K is determined based on the information received in the Lth reception. i A unified TCI state is set, where j is less than i, and K is determined based on the information received in the j-th reception. j The unified TCI state, the information received in the Lth time did not apply to the K. j Update at least one of the unified TCI states.

8. The method according to claim 1, characterized in that, At least one control resource set CORESET of the terminal is configured to be associated with multiple unified TCI states among the N unified TCI states.

9. The method according to claim 6, characterized in that, The first indication information is carried in the Media Access Control Unit (MAC CE) and / or in the Downlink Control Information (DCI).

10. The method according to claim 9, characterized in that, The first indication information is carried in the MAC CE, which is used to activate K sets of unified TCI states. The K sets of unified TCI states correspond to the first code point of the TCI indication field of the DCI.

11. The method according to claim 9, characterized in that, The first indication information is carried in the MAC CE and DCI. The MAC CE is used to activate multiple code points in the TCI state field of the DCI, which correspond one-to-one with K sets of unified TCI states. The TCI state field of the DCI is used to indicate one of the multiple code points.

12. The method according to claim 11, characterized in that, At least one of the multiple code points corresponds to multiple unified TCI states.

13. The method according to claim 1, characterized in that, The number of physical shared channels is one or more.

14. The method according to claim 1, characterized in that, The N sets of unified TCI states correspond to multiple transmission and reception points.

15. A method for configuring a transmission configuration indication status, characterized in that, The method is performed by a network device, and the method includes: The terminal receives capability information, wherein the capability information is used to indicate that the terminal supports communication based on the SFN scheme with only the physical downlink control channel configured; or the capability information is used to indicate that the terminal does not support communication based on the SFN scheme with only the physical downlink control channel configured. Send first indication information, the first indication information is used to configure a first transmission configuration indication state (TCI state), the first TCI state includes N sets of unified transmission configuration indication states (unified TCI states), where N is a positive integer greater than 1; Send a second indication message, which is used to configure the second TCI state corresponding to the physical shared channel of the terminal. The second TCI state is one or more of the N unified TCI states. The physical shared channel includes a physical uplink shared channel and / or a physical downlink shared channel. The physical downlink control channel of the terminal is configured to communicate based on a single-frequency network (SFN) scheme. The first indication information and the second indication information are received through the physical downlink control channel. Wherein, in response to the terminal supporting only the physical downlink control channel being configured for SFN-based communication, the second indication information is used to indicate one or more of the N unified TCI states as the second TCI state; In response to the terminal not supporting only the physical downlink control channel being configured for SFN-based communication, the second indication information is used to indicate multiple unified TCI states among the N unified TCI states as the second TCI state.

16. The method according to claim 15, characterized in that, The physical shared channel is configured for communication based on a non-SFN scheme; The physical downlink control channel is configured with a first single-frequency network scheme SFNschemeA, and / or the physical downlink control channel is configured with a second single-frequency network scheme SFNschemeB.

17. The method according to claim 15, characterized in that, The physical shared channel is configured with the same SFN scheme as the physical downlink control channel.

18. The method according to claim 15, characterized in that, The physical downlink control channel is configured with either the first single-frequency network scheme SFNschemeA or the second single-frequency network scheme SFNschemeB.

19. The method according to claim 15, characterized in that, The first instruction information sent is L, and the information sent in the i-th message is used to indicate K. i Set a unified TCI state, where L is a positive integer and i is a positive integer less than or equal to L; The N sets of unified TCI states are based on the K i Determined by a unified TCI state; or The N sets of unified TCI states are based on the K i Unified TCI state and K j The set of unified TCIstate is determined, where j is a positive integer less than or equal to L, and i is not equal to j.

20. The method according to claim 19, characterized in that, The N sets of unified TCI states are based on the K i The unified TCI state is determined, including: The i=L, K is determined based on the information sent in the Lth transmission. i The unified TCI state is defined as the Lth transmitted information, which is the most recently transmitted information.

21. The method according to claim 19, characterized in that, The N sets of unified TCI states are based on the K i Unified TCI state and K j The unified TCI state is determined, including: The i=L, K is determined based on the information sent in the Lth transmission. i A unified TCI state is set, where j is less than i, and K is determined based on the information sent in the j-th transmission. j The unified TCI state, the information sent in the Lth transmission did not address the K. j Update at least one of the unified TCI states.

22. The method according to claim 15, characterized in that, At least one control resource set CORESET of the terminal is configured to be associated with multiple unified TCI states among the N unified TCI states.

23. The method according to claim 19, characterized in that, The first indication information is carried in the Media Access Control Unit (MAC CE) and / or in the Downlink Control Information (DCI).

24. The method according to claim 23, characterized in that, The first indication information is carried in the MAC CE, which is used to activate K sets of unified TCI states. The K sets of unified TCI states correspond to the first code point of the TCI indication field of the DCI.

25. The method according to claim 23, characterized in that, The first indication information is carried in the MAC CE and DCI. The MAC CE is used to activate multiple code points in the TCI state field of the DCI, which correspond one-to-one with K sets of unified TCI states. The TCI state field of the DCI is used to indicate one of the multiple code points.

26. The method according to claim 25, characterized in that, At least one of the multiple code points corresponds to multiple unified TCI states.

27. The method according to claim 15, characterized in that, The number of physical shared channels is multiple.

28. The method according to claim 15, characterized in that, The N sets of unified TCI states correspond to multiple transmission and reception points.

29. A transmission configuration indication state determination device, characterized in that, include: The transmitting unit is configured to transmit capability information, wherein the capability information is used to indicate that the terminal supports communication based on the SFN scheme with only the physical downlink control channel configured; or the capability information is used to indicate that the terminal does not support communication based on the SFN scheme with only the physical downlink control channel configured. The receiving unit is configured to acquire first indication information, which is used to determine a first transmission configuration indication state (TCI state). The first TCI state includes N sets of unified transmission configuration indication states (unified TCI states), where N is a positive integer greater than 1. Obtain second indication information, which is used to determine the second TCI state corresponding to the physical shared channel of the terminal. The second TCI state is one or more of the N unified TCI states. The physical shared channel includes a physical uplink shared channel and / or a physical downlink shared channel. The physical downlink control channel of the terminal is configured to communicate based on a single-frequency network (SFN) scheme. The first indication information and the second indication information are received through the physical downlink control channel. Wherein, in response to the terminal supporting only the physical downlink control channel being configured for SFN-based communication, the second indication information is used to indicate one or more of the N unified TCI states as the second TCI state; In response to the terminal not supporting only the physical downlink control channel being configured for SFN-based communication, the second indication information is used to indicate multiple unified TCI states among the N unified TCI states as the second TCI state.

30. A transmission configuration indication status configuration device, characterized in that, include: The receiving unit is configured to receive capability information, wherein the capability information is used to indicate that the terminal supports communication based on the SFN scheme with only the physical downlink control channel configured; or the capability information is used to indicate that the terminal does not support communication based on the SFN scheme with only the physical downlink control channel configured. The sending unit is configured to send first indication information, which is used to configure a first transmission configuration indication state (TCI state). The first TCI state includes N sets of unified transmission configuration indication states (unified TCI states), where N is a positive integer greater than 1. Send a second indication message, which is used to configure the second TCI state corresponding to the physical shared channel of the terminal. The second TCI state is one or more of the N unified TCI states. The physical shared channel includes a physical uplink shared channel and / or a physical downlink shared channel. The physical downlink control channel of the terminal is configured to communicate based on a single-frequency network (SFN) scheme. The first indication information and the second indication information are received through the physical downlink control channel. Wherein, in response to the terminal supporting only the physical downlink control channel being configured for SFN-based communication, the second indication information is used to indicate one or more of the N unified TCI states as the second TCI state; In response to the terminal not supporting only the physical downlink control channel being configured for SFN-based communication, the second indication information is used to indicate multiple unified TCI states among the N unified TCI states as the second TCI state.

31. A communication system, comprising a terminal and network equipment, wherein, The terminal is used to perform the method as described in any one of claims 1-14; The network device is used to perform the method as described in any one of claims 15-28.

32. A transmission configuration indication state determination device, characterized in that, include: processor; Memory used to store processor-executable instructions; The processor is configured as follows: Perform the method as described in any one of claims 1-14.

33. A transmission configuration indication status configuration device, characterized in that, include: processor; Memory used to store processor-executable instructions; The processor is configured as follows: Perform the method as described in any one of claims 15-28.

34. A storage medium, wherein when instructions in the storage medium are executed by a processor of a terminal, the terminal is enabled to perform the method as described in any one of claims 1-14.

35. A storage medium, wherein instructions in the storage medium, when executed by a processor of a network device, enable the network device to perform the method as described in any one of claims 15-28.

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