Transmission Configuration Indicator (TCI) Status Indication Method and Apparatus

Abstract

An embodiment of the present disclosure provides a transmission configuration indicator (TCI) state indication method, the method being applied to a terminal, comprising: receiving transmission configuration indicator (TCI) state indication information transmitted from a base station; and updating a target state of a component carrier or a band portion in a component carrier CC list based on the TCI state indication information, the CC list being preconfigured by the base station for the terminal; the CC list corresponding to a plurality of TCI states or a plurality of TCI state groups; the CC list being one or more; and the target state of the component carrier or band portion including a TCI state of a component carrier, a TCI state group of a component carrier, a TCI state of a band portion, or a TCI state group of a band portion. The transmission configuration indicator (TCI) state indication method and apparatus according to the embodiment of the present disclosure reduce overhead of transmission configuration indicator (TCI) state indication signaling and ensure transmission of an mTRP.

Description

[Technical Field]

[0001] This application claims priority to a Chinese patent application filed on August 12, 2022, bearing application number 202210969354.1 and entitled "Beam Directing Method and Apparatus," the entire contents of which are incorporated herein by reference.

[0002] The present disclosure relates to the field of wireless communication technology, and more particularly to a method and apparatus for indicating a transmission configuration indicator (TCI) status. [Background technology]

[0003] Taking a carrier aggregation scenario as an example, for a multi-Transmission Reception Point (mTRP) scenario, different component carriers (CCs) / bandwidth parts (BWP Bandwidth Parts) can be transmitted by a single-Transmission Reception Point (sTRP) or a multi-Transmission Reception Point (mTRP), and different CCs transmitted by the mTRP can also be configured as mTRP transmission based on single-Downlink Control Information (S-DCI) or mTRP transmission based on multi-Downlink Control Information (M-DCI).

[0004] However, in the related art, in a multi-TRP scenario, one downlink control information (DCI) signaling instructs one CC to update the transmission configuration indicator (TCI) state, and when updating CCs of the same TRP, multiple DCI signaling needs to be adopted, which results in large signaling overhead. Summary of the Invention [Problem to be solved by the invention]

[0005] In response to the problems existing in the related art, the embodiments of the present disclosure provide a transmission configuration indicator (TCI) status indication method and apparatus. [Means for solving the problem]

[0006] In a first aspect, an embodiment of the present disclosure provides a transmission configuration indicator (TCI) status indication method applied to a terminal, the method comprising: receiving a transmission configuration indicator (TCI) status indication information sent from a base station; updating a target state of a component carrier or a band portion in a component carrier CC list based on the TCI state indication information; The CC list is pre-configured by the base station for the terminal, the CC list corresponds to multiple TCI states or multiple TCI state groups, there is one or more CC lists, and the target state of the component carrier or band portion includes a TCI state of the component carrier, a TCI state group of the component carrier, a TCI state of the band portion, or a TCI state group of the band portion.

[0007] Optionally, the CC list may include: CC list set individually for each TRP, A CC list configured based on the TRP transmission type corresponding to the component carrier or band portion, or a CC list configured based on the DCI mode, or a combination thereof.

[0008] Optionally, updating the target state of a component carrier or a band portion in a component carrier CC list based on the TCI status indication information, as described above, comprises: The method includes updating the target state of the component carrier or band portion corresponding to the TRP corresponding to the TCI status indication information based on the TCI status indication information.

[0009] Optionally, the component carriers or band portions in the CC list are: Single downlink control information S-DC mode component carrier or band portion, and / or Including component carriers or band portions of multi-downlink control information M-DCI mode, The above-mentioned updating of the target state of the component carrier or the band part in the component carrier CC list based on the TCI state indication information includes: If the DCI in which the TCI status indication information is located is an S-DCI, updating a target state of a first component carrier or band portion corresponding to the S-DCI, where the first component carrier or band portion is a component carrier or band portion of an S-DCI mode in the CC list; or If the DCI in which the TCI status indication information is located is an M-DCI, updating the target status of a second component carrier or band portion corresponding to the M-DCI, where the second component carrier or band portion is a component carrier or band portion of an M-DCI mode in the CC list.

[0010] Optionally, the method further comprises: determining a DCI signaling type of the DCI in which the TCI status indication information is located based on a first predetermined correspondence relationship and a resource set in which the TCI status indication information is located; and / or Further comprising: determining a TRP corresponding to the TCI status indication information based on a second predetermined correspondence relationship and a resource set in which the TCI status indication information is located; The first correspondence relationship is a correspondence relationship between the resource set and the DCI signaling type, and the second correspondence relationship is a correspondence relationship between the resource set and the TRP.

[0011] Optionally, the TCI state indication information is for indicating a TCI state or a group of TCI states.

[0012] In a second aspect, an embodiment of the present disclosure provides a transmission configuration indicator (TCI) status indication method applied to a base station, the method comprising: sending a transmission configuration indicator (TCI) status indication information to a terminal, the TCI status indication information being for instructing the terminal to update a target status of a component carrier or a band part in a component carrier CC list; The CC list is preset by the base station for the terminal, and the CC list corresponds to a plurality of TCI states or a plurality of TCI state groups, and the target state of the component carrier or band portion includes a TCI state of the component carrier, a TCI state group of the component carrier, a TCI state of the band portion, or a TCI state group of the band portion.

[0013] Optionally, the CC list may include: CC list set individually for each TRP, A CC list configured based on the TRP transmission type corresponding to the component carrier or band portion; a CC list configured based on the DCI mode, or a combination thereof.

[0014] Optionally, the TCI status indication information is for updating the target status of the component carrier or band portion corresponding to the TRP corresponding to the TCI status indication information.

[0015] Optionally, the component carriers or band portions in the CC list are: Single downlink control information S-DC mode component carrier or band portion, and / or Including component carriers or band portions of multi-downlink control information M-DCI mode, If the DCI in which the TCI status indication information is located is an S-DCI, the TCI status indication information is for updating a target state of a first component carrier or band portion corresponding to the S-DCI, and the first component carrier or band portion is a component carrier or band portion of an S-DCI mode in the CC list; or If the DCI in which the TCI status indication information is located is an M-DCI, the TCI status indication information is for updating the target state of a second component carrier or band portion corresponding to the M-DCI, and the second component carrier or band portion is a component carrier or band portion of an M-DCI mode in the CC list.

[0016] Optionally, the method further comprises: further comprising setting a first correspondence relationship and / or a second correspondence relationship in the terminal; The first correspondence is a correspondence between a resource set and a DCI signaling type, and the first correspondence is for determining the DCI signaling type of the DCI in which the TCI status indication information is located. The second correspondence is a correspondence between a resource set and a TRP, and the second correspondence is for determining the TRP corresponding to the TCI status indication information.

[0017] Optionally, the TCI state indication information is for indicating a TCI state or a group of TCI states.

[0018] In a third aspect, the embodiment of the present disclosure further provides a transmission configuration indicator (TCI) status indication device applied to a terminal, the device comprising: a first receiving unit for receiving transmission configuration indicator (TCI) status indication information sent from a base station; a first updating unit for updating a target state of a component carrier or a band portion in a component carrier CC list based on the TCI state indication information; The CC list is pre-configured by the base station for the terminal, the CC list corresponds to multiple TCI states or multiple TCI state groups, there is one or more CC lists, and the target state of the component carrier or band portion includes a TCI state of the component carrier, a TCI state group of the component carrier, a TCI state of the band portion, or a TCI state group of the band portion.

[0019] Optionally, the CC list may include: CC list set individually for each TRP, A CC list configured based on the TRP transmission type corresponding to the component carrier or band portion, or a CC list configured based on the DCI mode, or a combination thereof.

[0020] Optionally, updating the target state of a component carrier or a band portion in a component carrier CC list based on the TCI status indication information, as described above, comprises: The method includes updating the target state of the component carrier or band portion corresponding to the TRP corresponding to the TCI status indication information based on the TCI status indication information.

[0021] Optionally, the component carriers or band portions in the CC list are: Single downlink control information S-DC mode component carrier or band portion, and / or Including component carriers or band portions of multi-downlink control information M-DCI mode, The above-mentioned updating of the target state of the component carrier or the band part in the component carrier CC list based on the TCI state indication information includes: If the DCI in which the TCI status indication information is located is an S-DCI, updating a target state of a first component carrier or band portion corresponding to the S-DCI, where the first component carrier or band portion is a component carrier or band portion of an S-DCI mode in the CC list; or If the DCI in which the TCI status indication information is located is an M-DCI, updating the target status of a second component carrier or band portion corresponding to the M-DCI, where the second component carrier or band portion is a component carrier or band portion of an M-DCI mode in the CC list.

[0022] Optionally, the apparatus further comprises a first determining unit, wherein the first determining unit: determining a DCI signaling type of the DCI in which the TCI status indication information is located based on a first predetermined correspondence relationship and a resource set in which the TCI status indication information is located; and / or The TRP corresponding to the TCI status indication is determined based on the second correspondence relationship set and the resource set where the TCI status indication is located; The first correspondence relationship is a correspondence relationship between the resource set and the DCI signaling type, and the second correspondence relationship is a correspondence relationship between the resource set and the TRP.

[0023] Optionally, the TCI state indication information is for indicating a TCI state or a group of TCI states.

[0024] In a fourth aspect, the embodiment of the present disclosure further provides a transmission configuration indicator (TCI) status indication device applied to a base station, the device comprising: a second transmitting unit for transmitting a transmission configuration indicator (TCI) status indication information to a terminal, the TCI status indication information being for instructing the terminal to update a target status of a component carrier or a band part in a component carrier CC list; The CC list is preset by the base station for the terminal, and the CC list corresponds to a plurality of TCI states or a plurality of TCI state groups, and the target state of the component carrier or band portion includes a TCI state of the component carrier, a TCI state group of the component carrier, a TCI state of the band portion, or a TCI state group of the band portion.

[0025] Optionally, the CC list may include: CC list set individually for each TRP, A CC list configured based on the TRP transmission type corresponding to the component carrier or band portion; a CC list configured based on the DCI mode, or a combination thereof.

[0026] Optionally, the TCI status indication information is for updating the target status of the component carrier or band portion corresponding to the TRP corresponding to the TCI status indication information.

[0027] Optionally, the component carriers or band portions in the CC list are: Single downlink control information S-DC mode component carrier or band portion, and / or Including component carriers or band portions of multi-downlink control information M-DCI mode, If the DCI in which the TCI status indication information is located is an S-DCI, the TCI status indication information is for updating a target state of a first component carrier or band portion corresponding to the S-DCI, and the first component carrier or band portion is a component carrier or band portion of an S-DCI mode in the CC list; or If the DCI in which the TCI status indication information is located is an M-DCI, the TCI status indication information is for updating the target state of a second component carrier or band portion corresponding to the M-DCI, and the second component carrier or band portion is a component carrier or band portion of an M-DCI mode in the CC list.

[0028] Optionally, the apparatus further includes a third sending unit for setting the first correspondence relationship and / or the second correspondence relationship in the terminal; The first correspondence relationship is a correspondence relationship between a resource set and a DCI signaling type, and the first correspondence relationship is for determining the DCI signaling type of the DCI in which the TCI status indication information is located. The second correspondence relationship is a correspondence relationship between a resource set and a TRP, and the second correspondence relationship is for determining the TRP corresponding to the TCI status indication information.

[0029] Optionally, the TCI state indication information is for indicating a TCI state or a group of TCI states.

[0030] In a fifth aspect, an embodiment of the present disclosure provides a terminal including a memory, a transceiver, and a processor; the memory is for storing a computer program, the transceiver is for transmitting and receiving data under the control of the processor, the processor reads the computer program in the memory; receiving a transmission configuration indicator (TCI) status indication information sent from a base station; and performing an operation including updating a target state of a component carrier or a band portion in a component carrier CC list based on the TCI status indication information; The CC list is pre-configured by the base station for the terminal, the CC list corresponds to multiple TCI states or multiple TCI state groups, there is one or more CC lists, and the target state of the component carrier or band portion includes a TCI state of the component carrier, a TCI state group of the component carrier, a TCI state of the band portion, or a TCI state group of the band portion.

[0031] Optionally, the CC list may include: CC list set individually for each TRP, A CC list configured based on the TRP transmission type corresponding to the component carrier or band portion, or a CC list configured based on the DCI mode, or a combination thereof.

[0032] Optionally, updating the target state of a component carrier or a band portion in a component carrier CC list based on the TCI status indication information, as described above, comprises: The method includes updating the target state of the component carrier or band portion corresponding to the TRP corresponding to the TCI status indication information based on the TCI status indication information.

[0033] Optionally, the component carriers or band portions in the CC list are: Single downlink control information S-DC mode component carrier or band portion, and / or Including component carriers or band portions of multi-downlink control information M-DCI mode, The above-mentioned updating of the target state of the component carrier or the band part in the component carrier CC list based on the TCI state indication information includes: If the DCI in which the TCI status indication information is located is an S-DCI, updating a target state of a first component carrier or band portion corresponding to the S-DCI, where the first component carrier or band portion is a component carrier or band portion of an S-DCI mode in the CC list; or If the DCI in which the TCI status indication information is located is an M-DCI, updating the target status of a second component carrier or band portion corresponding to the M-DCI, where the second component carrier or band portion is a component carrier or band portion of an M-DCI mode in the CC list.

[0034] Optionally, the operation comprises: determining a DCI signaling type of the DCI in which the TCI status indication information is located based on a first predetermined correspondence relationship and a resource set in which the TCI status indication information is located; and / or The method further includes determining a TRP corresponding to the TCI status indication information based on a second predetermined correspondence relationship and a resource set in which the TCI status indication information is located; The first correspondence relationship is a correspondence relationship between the resource set and the DCI signaling type, and the second correspondence relationship is a correspondence relationship between the resource set and the TRP.

[0035] Optionally, the TCI state indication information is for indicating a TCI state or a group of TCI states.

[0036] In a sixth aspect, an embodiment of the present disclosure further provides a base station including a memory, a transceiver, and a processor; the memory is for storing a computer program, the transceiver is for transmitting and receiving data under the control of the processor, the processor reads the computer program in the memory; for performing an operation including sending a transmission configuration indicator (TCI) status indication information to a terminal, the TCI status indication information being for instructing the terminal to update a target status of a component carrier or a band portion in a component carrier CC list; The CC list is preset by the base station for the terminal, and the CC list corresponds to a plurality of TCI states or a plurality of TCI state groups, and the target state of the component carrier or band portion includes a TCI state of the component carrier, a TCI state group of the component carrier, a TCI state of the band portion, or a TCI state group of the band portion.

[0037] Optionally, the CC list may include: CC list set individually for each TRP, A CC list configured based on the TRP transmission type corresponding to the component carrier or band portion; a CC list configured based on the DCI mode, or a combination thereof.

[0038] Optionally, the TCI status indication information is for updating the target status of the component carrier or band portion corresponding to the TRP corresponding to the TCI status indication information.

[0039] Optionally, the component carriers or band portions in the CC list are: Single downlink control information S-DC mode component carrier or band portion, and / or Including component carriers or band portions of multi-downlink control information M-DCI mode, If the DCI in which the TCI status indication information is located is an S-DCI, the TCI status indication information is for updating a target state of a first component carrier or band portion corresponding to the S-DCI, and the first component carrier or band portion is a component carrier or band portion of an S-DCI mode in the CC list; or If the DCI in which the TCI status indication information is located is an M-DCI, the TCI status indication information is for updating the target state of a second component carrier or band portion corresponding to the M-DCI, and the second component carrier or band portion is a component carrier or band portion of an M-DCI mode in the CC list.

[0040] Optionally, the operation comprises: further comprising setting a first correspondence relationship and / or a second correspondence relationship in the terminal; The first correspondence relationship is a correspondence relationship between a resource set and a DCI signaling type, and the first correspondence relationship is for determining the DCI signaling type of the DCI in which the TCI status indication information is located. The second correspondence relationship is a correspondence relationship between the resource set and a TRP, and the second correspondence relationship is for determining the TRP corresponding to the TCI status indication information.

[0041] Optionally, the TCI state indication information is for indicating a TCI state or a group of TCI states.

[0042] In a seventh aspect, an embodiment of the present disclosure further provides a processor-readable storage medium on which a computer program is stored for causing a processor to execute the transmission setting indicator TCI status indication method described in the first aspect or the transmission setting indicator TCI status indication method described in the second aspect. [Effects of the Invention]

[0043] The transmission setting indicator (TCI) status indication method and device according to an embodiment of the present disclosure pre-configure one or more CC lists corresponding to different TCIs or TCI status groups, receive TCI status indication information transmitted from a base station, and update the status (TCI status or TCI status group) in the CC list based on the TCI status indication information, thereby realizing updating CC / BWPs corresponding to one or more TRPs using one TCI status indication information. The transmission setting indicator (TCI) status indication method according to an embodiment of the present disclosure reduces the overhead of transmission setting indicator (TCI) status indication signaling and ensures the transmission of mTRPs.

[0044] In order to more clearly describe the technical solutions in the embodiments of the present disclosure or the related art, the drawings necessary for describing the embodiments or the related art will be briefly described below. Of course, the drawings in the following description are only some embodiments of the present disclosure, and those skilled in the art can further obtain other drawings based on these drawings without creative work. [Brief explanation of the drawings]

[0045] [Figure 1] 1 is a flowchart of a transmission configuration indicator (TCI) status indication method according to an embodiment of the present disclosure. [Figure 2] 10 is a second flowchart of a transmission configuration indicator (TCI) status indication method according to an embodiment of the present disclosure. [Figure 3] 1 is a schematic diagram of the structure of a transmission configuration indicator (TCI) status indicating device according to an embodiment of the present disclosure; FIG. [Figure 4] 2 is a second schematic diagram of the structure of a transmission configuration indicator (TCI) status indicating device according to an embodiment of the present disclosure. [Figure 5] FIG. 1 is a schematic diagram of a terminal structure according to an embodiment of the present disclosure; [Figure 6] FIG. 2 is a schematic diagram of a base station structure according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0046] The term "and / or" in the embodiments of the present disclosure describes a relation between related objects and indicates that three types of relations may exist. For example, A and / or B may indicate three cases: A exists alone, A and B exist simultaneously, and B exists alone. The symbol " / " generally indicates that the related objects before and after it are in an "or" relationship.

[0047] The term "plurality" in the embodiments of the present disclosure means two or more than two, and other quantifiers similar thereto.

[0048] The technical solutions according to the embodiments of the present disclosure are applicable to various systems, particularly 5G systems. For example, applicable systems include a global system of mobile communication (GSM) system, a code division multiple access (CDMA) system, a wideband code division multiple access (WCDMA) system, a general packet radio service (GPRS) system, a long term evolution (LTE) system, an LTE frequency division duplex (FDD) system, an LTE time division duplex (TDD) system, a long term evolution advanced (LTE-A) system, a universal mobile telecommunication system (UMTS), a worldwide interoperability for microwave access (WiMAX) system, and a 5G New Radio (NR) system. All of these various systems include terminal equipment and network equipment. The system may also include a core network portion such as an evolved packet system (EPS) or a 5th generation mobile communication technology system (5GS).

[0049] In embodiments of the present disclosure, a terminal device (e.g., UE) may refer to a device providing voice and / or data connectivity to a user, a handheld device with wireless connectivity, or other processing device connected to a wireless modem. Different systems may refer to terminal devices by different names. For example, in a 5G system, terminal devices may be referred to as user equipment (UE). A wireless terminal device can communicate with one or more core networks (CN) via a radio access network (RAN). The wireless terminal device may be a mobile terminal device, such as a mobile phone (also called a "cellular" phone) or a computer with a mobile terminal device, e.g., a portable, pocket-sized, handheld, computer-integrated, or vehicle-mounted mobile device, which exchanges voice and / or data with the radio access network. Examples of such devices include a personal communication service (PCS) phone, a cordless phone, a session initiated protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), and other devices. The wireless terminal equipment may also be called a system, subscriber unit, subscriber station, mobile station, mobile, remote station, access point, remote terminal, access terminal, user terminal, user agent, or user device, and is not limited to these in the embodiments of the present disclosure.

[0050] The network equipment according to an embodiment of the present disclosure may be a base station that can include multiple cells serving terminals. Depending on the specific application scenario, the base station may also be called an access point, a device that communicates with wireless terminal devices over one or more sectors over a radio interface in an access network, or other names. The network equipment may be used as a router between the wireless terminal devices and the rest of the access network to exchange received radio frames and Internet Protocol (IP) packets with each other, where the rest of the access network may include an Internet Protocol (IP) communication network. The network equipment may also coordinate attribute management of the radio interface. For example, the network device according to the embodiment of the present disclosure may be a network device (BTS: Base Transceiver Station) in Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), a network device (Node B) in Wide-band Code Division Multiple Access (WCDMA (registered trademark)), an evolved network device (eNB or e-Node B: evolutionary Node B) in a Long Term Evolution (LTE) system, a 5G base station (gNB) in a 5G network architecture (next generation system), a Home evolved Node B (HeNB), a relay node, a home base station (femto), a pico base station (pico), or the like, and is not limited to these in the embodiment of the present disclosure.In some network architectures, the network equipment may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may be located geographically separated.

[0051] To facilitate understanding of the embodiments of the present disclosure, terms or background relevant to the embodiments of the present disclosure are explained below.

[0052] In an NR system, downlink channels include a downlink data channel (PDSCH: Physical Downlink Shared Channel) and a downlink control channel (PDCCH: Physical Downlink Control Channel), and uplink channels include an uplink data channel (PUSCH: Physical Uplink Shared Channel) and an uplink control channel (PUCCH: Physical Uplink Control Channel). Because the transmission range is limited for high-frequency transmission (FR2 frequency band in NR), uplink and downlink channels are typically beamformed and transmitted to enhance coverage. The beam directions of different channels must be determined, and signaling must be used to indicate the beams used for channel transmission. That is, beam indication (indicating beam information through the transmission configuration indicator (TCI) status) is required. In related art, different channels use different transmission configuration indicator (TCI) status indication signaling, and each channel independently indicates the transmission configuration indicator (TCI) status. In this way, different channels may use different beam transmissions. Such independent transmission configuration indicator (TCI) status indication increases system complexity and signaling overhead.

[0053] To overcome the above problems, the related art introduces a method for indicating multiple channel beams using one transmission configuration indicator (TCI) state indication signaling, which activates a set of transmission configuration indicator (TCI) states via a control unit of a medium access control layer (MAC-CE), and further indicates one of the activated TCI states using downlink control information (DCI). When the uplink and downlink channels are mutual, the beam indicated by the transmission setting indicator (TCI status indication signaling) may be used for both the uplink channel and the downlink channel. In this case, it is set as joint TCI mode. If a Maximum Permissible Exposure (MPE) problem occurs due to human body occlusion or the terminal needs to switch the uplink beam, the uplink channel uses a beam different from the downlink channel. Thus, the transmission setting indicator (TCI status indication signaling) needs to indicate the uplink channel beam and the downlink channel beam, respectively. In this case, it is set as separate DL / UL TCI mode.

[0054] For multi-Transmission Reception Point (mTRP) transmissions, in related art, each signaling indicates only the TCI state of the corresponding CC / BWP. For mTRP transmissions based on multi-DCI (M-DCI), in this case, each CORESET is configured to be associated with one CORESETPoolIndex. Each DCI indicates one TCI state and is used for PDSCH transmissions on CC / BWPs of TRPs with the same CORESETPoolIndex value. For M-TRP transmissions based on single-DCI (S-DCI), each DCI indicates two TCI states and is used for PDSCH transmissions of two TRPs of the corresponding CC / BWP, respectively.

[0055] However, in the related technology, for a multi-TRP scenario, one DCI signaling indicates one CC update TCI state, and when updating the CC of the same TRP, multiple DCI signaling needs to be adopted, resulting in large signaling overhead.

[0056] Hereinafter, the technical solutions in the embodiments of the present disclosure will be clearly and completely described with reference to the drawings in the embodiments of the present disclosure. Of course, the described embodiments are only some embodiments of the present disclosure, and are not all embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present disclosure.

[0057] The transmission setting indicator TCI status indication method according to an embodiment of the present disclosure can be applied to an mTRP scenario in carrier aggregation, and can realize a method for updating beams of multiple CCs / BWPs and multiple TRPs using one DCI signaling by updating beams of some CCs in a CC list or by configuring multiple CC lists. The transmission setting indicator TCI status indication method according to an embodiment of the present disclosure reduces the overhead of transmission setting indicator TCI status indication signaling and ensures the transmission of mTRPs.

[0058] FIG. 1 is a flowchart of a method for indicating a transmission setting indicator (TCI) status according to an embodiment of the present disclosure. As shown in FIG. 1, the method for indicating a transmission setting indicator (TCI) status according to an embodiment of the present disclosure includes steps 110 and 120.

[0059] In step 110, receiving a transmission configuration indicator (TCI) status indication information sent from a base station; Specifically, one terminal can configure multiple alternative TCI states. Exemplarily, for the PDCCH transmission configuration indicator TCI state indication, RRC signaling specifies one subset of M configured alternative TCI states for each configured control resource set (CORESET). Through MAC signaling, the network can dynamically indicate that one specific TCI state is valid from the M alternative state subsets corresponding to each CORESET. When the terminal monitors the PDCCH of a certain CORESET, the terminal assumes that the PDCCH must use the beam used for the reference signal associated with the TCI state specified by MAC, thereby allowing the terminal to update the corresponding CC / BWP based on the TCI state. The TCI state indication information may be carried by DCI.

[0060] Exemplarily, the TCI state indication information may indicate one TCI state, multiple TCI states, one TCI state group, or multiple TCI state groups. Exemplarily, if the DCI in which the TCI state indication information exists is an S-DCI, one S-DCI can indicate multiple TCI states, and each TCI state is associated with one TRP. The TCI state indication information (indicating multiple TCI states or state groups) may further be carried by a set of M-DCIs, which may include multiple DCIs, and one DCI is associated with the TCI state of the CC / BWP corresponding to one TRP.

[0061] In step 120, update the target state of the component carrier or band part in the component carrier CC list according to the TCI state indication information; Here, the target state of the component carrier or band portion includes a TCI state of the component carrier, a TCI state group of the component carrier, a TCI state of the band portion, or a TCI state group of the band portion. The target state can be described as a TCI state or a TCI state group of the CC / BWP.

[0062] The CC list is preset by the base station for the terminal, and there may be one or more CC lists, and the CC list may include a CC or a BWP. It can be understood that the CC list corresponds to multiple TCI states or TCI state groups, and that a component carrier in the CC list corresponds to multiple TCI states or multiple TCI state groups, or that a band portion in the CC list corresponds to multiple TCI states or multiple TCI state groups.

[0063] Specifically, a Bandwidth Part (BWP) refers to a set of contiguous Common Resource Blocks (CRBs) on a particular carrier that correspond to a particular parameter set, and can be understood as a part of a band.

[0064] A carrier or band portion is hereinafter abbreviated as CC / BWP. In the embodiments of the present disclosure, a CC list represents multiple bands in list form, and a band can include CCs or BWPs. Therefore, a CC list in the embodiments of the present disclosure may be used to represent a BWP, and a CC list in the embodiments of the present disclosure can also be understood to represent a BWP list. The embodiments of the present disclosure may be used to update the TCI status on a CC or to update the TCI status on a BWP. Hereinafter, when a CC or a BWP is used alone, this is for ease of illustration, and the embodiments using a CC or a BWP alone may be applied to band scenes not mentioned (e.g., when a CC is used as an example, it can be similarly applied to a BWP). The embodiments of the present disclosure may be used to update a TCI status or a TCI status group. Hereinafter, when a TCI status or a TCI status group is used alone, this is for ease of illustration, and the embodiments using a TCI state or a TCI status group alone may be applied to scenes not mentioned (e.g., when a TCI state is used as an example, it can be similarly applied to a TCI status group).

[0065] It should be understood that one TCI state corresponds to one TRP, and one TCI state group corresponds to the upstream TCI state and downstream TCI state of one TRP.

[0066] The CC list corresponding to multiple TCI states or TCI state groups means that the CC list corresponds to multiple TRPs. For example, if there is one CC list, it can be understood that one CC list may be multiple TCI states or TCI state groups, and that CC / BWPs in the CC list may correspond to multiple TRPs. If there are multiple CC lists, it can be understood that all CC lists may correspond to multiple TCI states or TCI state groups, and that CC / BWPs in all CC lists may correspond to multiple TRPs.

[0067] It should be understood that the terminal has previously received one or more CC lists set by the base station, and in the case of one CC list, the CC / BWP in one CC list may correspond to multiple TRPs, and in the case of multiple CC lists, one CC list may correspond to multiple TRPs, or one CC list may correspond to one TRP.

[0068] For example, take the case where the CC list includes BWPs. If there is one CC list, it includes BWP1 and BWP2, and BWP1 may correspond to TCI1 and TCI2, and BWP2 corresponds to TCI1, and the CC list corresponds to multiple different TCIs. If there are two CC lists, CC list 1 includes BWP1-1 and BWP1-2, and BWP1-1 and BWP1-2 correspond to TCI1, and CC list 2 includes BWP2-1, and BWP2-1 corresponds to TCI2. If there are two CC lists, CC list 1 includes BWP1-1 and BWP1-2, and BWP1-1 and BWP1-2 correspond to TCI1 and TCI2, and CC list 2 includes BWP2-1, and BWP2-1 corresponds to TCI2. It should be understood that one TCI state corresponds to one TRP, and therefore, the CC list in this embodiment as a whole (multiple CC lists as a whole) corresponds to multiple TRPs.

[0069] Both CC and BWP are used to represent a certain band frequency, and in protocols, they are generally represented as CC / BWP. Therefore, hereinafter, the component carrier or band portion can be abbreviated as CC / BWP. Regarding the terminal updating the target state in the component carrier CC list based on the TCI status indication information, as described above for TCI and CORESET, the TCI status indication information can be associated with a CORESET, that is, when the terminal monitors a certain CORESET, the terminal considers that the TCI status indication information transmitted from the CORESET is associated with the associated TCI state on the CORESET, and the TCI state corresponds to one TRP, thereby realizing updating the TCI status corresponding to the CC / BWP of the TRP corresponding to the TCI state associated on the CORESET based on the TCI status information.

[0070] For example, when CORESET1 is associated with CC1 corresponding to TRP1, and CORESET2 is associated with CC2 corresponding to TRP2, and one TCI status indication information is transmitted on CORESET1, the terminal can determine that the TCI status indication information is used to update the TCI status of CC1 corresponding to TRP1 and CC2 corresponding to TRP2.

[0071] The above is an example to facilitate understanding of the present invention, and it can also be realized by related technologies other than the examples, such as adding a TRP identifier or a CC / BWP identifier, and it should be understood that the embodiments of the present disclosure are not limited to how the TCI status indication information indicates multiple TRPs or multiple TCI statuses.

[0072] In one embodiment, the terminal pre-configures multiple CC lists, where one CC list 1 corresponds to TRP1, and CC list 1 includes CC1-1 (CC1 in CC list 1; the same applies hereinafter and description will be omitted), CC1-2, and CC1-3; one CC list 2 corresponds to TRP2, and CC list 2 includes CC2-1 (CC1 in CC list 2; the same applies hereinafter and description will be omitted), CC2-2, and CC2-3. Exemplarily, TCI status indication information 1 received by the terminal is associated with TRP1 and TRP2, and the terminal updates CC list 1 and CC list 2, i.e., the terminal updates CCs corresponding to two TRPs based on the one TCI status indication information 1. Exemplarily, TCI status indication information 2 received by the terminal is associated with TRP1, and the terminal updates the TCI status corresponding to all CCs (CC1-1, CC1-2, and CC1-3) in CC list 1.

[0073] It should be understood that one CC corresponding to multiple TRPs means that there are multiple channels on one CC, and each channel can correspond to one TRP.

[0074] It should be understood that the above is an example for facilitating understanding of the present invention and does not limit the present invention in any way.

[0075] A transmission setting indicator (TCI) status indication method according to an embodiment of the present disclosure pre-configures one or more CC lists corresponding to different TCIs or TCI status groups, receives TCI status indication information transmitted from a base station, and updates the status (TCI status or TCI status group) in the CC list based on the TCI status indication information, thereby realizing updating CC / BWPs corresponding to one or more TRPs using one TCI status indication information. The transmission setting indicator (TCI) status indication method according to an embodiment of the present disclosure reduces the overhead of transmission setting indicator (TCI) status indication signaling and ensures the transmission of mTRPs.

[0076] Optionally, the CC list may include: CC list set individually for each TRP, A CC list configured based on the TRP transmission type corresponding to the component carrier or band portion, or a CC list configured based on the DCI mode, or a combination thereof. Specifically, the CC list individually set for each TRP may mean that one CC list is set for each TRP. For example, CC list 1 is set for TRP1, and CC list 2 is set for TRP1. If the TCI status indication information is associated with CC1, CC1 in the two lists can be updated by the TCI status indication information.

[0077] Regarding the CC list set based on the TRP transmission type corresponding to the component carrier or band portion, it can refer to setting a CC list that supports multi-TRP transmission and a CC list that does not support multi-TRP transmission based on whether multi-TRP transmission is supported on the CC / BWP.

[0078] For example, CC list 1 and CC list 2 are set. CC list 1 includes CC1-1 and CC1-2, and CC list 2 includes CC2-1. CC2-1 supports multi-TRP transmission, CC1-1 and CC1-2 do not support multi-TRP transmission, CC1-1 corresponds to TRP1, and CC1-2 corresponds to TRP2. CC2-1 may also correspond to TRP1 and TRP2. If the TCI status indication information is associated with TRP1, the TCI status indication information can update the channel corresponding to TRP1 on CC1-1 in CC list 1 and CC2-1 in CC list 2.

[0079] The CC list set based on the DCI mode may refer to setting a CC / BWP for single DCI mode and a CC / BWP for multi DCI mode for each CC list, or may refer to setting different CC lists for different DCI modes and dividing them into CC lists for single DCI mode and CC lists for multi DCI mode based on the DCI mode.

[0080] Specifically, the multi-DCI mode refers to supporting M-DCI, and the single-DCI mode refers to supporting S-DCI.

[0081] For example, one CC list may be configured, and the CC list may include CC1, CC2, and CC3, where CC1 is a single DCI mode CC, and CC2 and CC3 are multi-DCI mode CCs.

[0082] For example, CC list 1 and CC list 2 are set. CC list 1 includes CC1-1 and CC1-2, and CC list 2 includes CC2-1. CC2-1 is in multi-DCI (M-DCI) mode, and CC1-1 and CC1-2 are in single-DCI (S-DCI) mode.

[0083] It should be understood that the above CC lists may be combined, for example, a CC list may be set separately for each TRP, and the CCs in the CC list of each TRP may be CCs for single DCI mode and CCs for multi-DCI mode. Here, a description of the combination of a CC list set based on a TRP transmission type corresponding to a component carrier or band portion and a CC list set based on a DCI mode will be omitted.

[0084] The transmission setting indicator TCI status indication method according to an embodiment of the present disclosure provides multiple CC list configuration types, thereby realizing the configuration of multiple CC lists. After a terminal receives TCI status indication information transmitted from a base station, the terminal can update some CCs in one or more CC lists based on the TRP corresponding to the TCI status indication information or the DCI signaling type of the DCI in which the TCI status indication information is located, thereby realizing the updating of CCs / BWPs corresponding to one or more TRPs using one TCI status indication information. The transmission setting indicator TCI status indication method according to an embodiment of the present disclosure reduces the overhead of transmission setting indicator TCI status indication signaling and ensures the transmission of mTRPs.

[0085] Optionally, updating the target state of a component carrier or a band portion in a component carrier CC list based on the TCI status indication information, as described above, comprises: The method includes updating the target state of the component carrier or band portion corresponding to the TRP corresponding to the TCI status indication information based on the TCI status indication information.

[0086] It should be understood that updating the target state of a component carrier or band portion corresponding to a TRP corresponding to the TCI status indication information is performed by setting all CC lists corresponding to the TRP, and all CC lists may be one CC list or multiple CC lists. When there is one CC list, different CCs in the CC list correspond to different TRPs, and instead of updating all CCs in the CC list, the CC corresponding to the TRP in the CC list is updated based on the TRP corresponding to the TCI status indication information, thereby realizing CC updating as needed and reducing signaling overhead. When there are multiple CC lists, different TRPs may correspond to different CC lists, or different CCs in one CC list may correspond to different TRPs. In this way, CCs in the corresponding CC list can be selectively updated based on the TRP corresponding to the TCI status indication information, and the CC corresponding to the TRP in the CC list can be selectively updated based on the TRP corresponding to the TCI status indication information, thereby similarly reducing signaling overhead.

[0087] In one embodiment, the TCI status indication information indicates TCI status 3 and TCI status 6. TCI status 3 corresponds to TRP1, and TCI status 6 corresponds to TRP2. One CC list includes CC1, CC2, and CC3. CC1 corresponds to TRP1 and TRP2, CC2 corresponds to TRP1, and CC3 corresponds to TRP2. After receiving the TCI status indication information, the terminal updates the TCI status of CC1 and CC2 corresponding to TRP1 to TCI status 3, and updates the TCI status of CC2 and CC3 corresponding to TRP2 to TCI status 6 based on the TCI status indication information.

[0088] In the case where one TCI state is indicated in the TCI state indication information and there are multiple CC lists, and in the case of multiple types of CC list setting methods or a combination of multiple types, for the method of updating the target state of the component carrier or band portion corresponding to the TRP corresponding to the TCI state indication information in the CC list, refer to the above-mentioned embodiment. It should be understood that the above is an example to facilitate understanding of the present invention and does not limit the present invention in any way.

[0089] Optionally, when the CC list includes a CC list individually configured for each TRP, updating the target state of a component carrier or a band part in the component carrier CC list based on the TCI state indication information includes: The method includes updating a target state in a CC list corresponding to a component carrier or a band portion to which a TRP corresponding to the TCI status indication information corresponds based on the TCI status indication information.

[0090] Specifically, when a CC list is set for each TRP, the TCI status indication information can be used to update the TCI status on the CC in one of the lists.

[0091] In the two CC lists set for each TRP, all CCs in CC list 1 are associated with TRP1, all CCs in CC list 2 are associated with TRP2, and CC2-1 is associated with TRP2. The TCI state indication information indicates TCI state 3 and TCI state 6. TCI state 3 corresponds to TRP1, and TCI state 6 corresponds to TRP2. After receiving the TCI state indication information, the terminal updates the TCI state of the CC in CC list 1 corresponding to TRP1 to TCI state 3 and the TCI state of the CC in CC list 2 corresponding to TRP2 to TCI state 6 based on the TCI state indication information.

[0092] According to the transmission configuration indicator TCI state indication method of the embodiment of the present disclosure, when a CC list includes CCs / BWPs corresponding to multiple TRPs, the target states of all CCs / BWPs corresponding to the TRPs can be updated by the TCI state indication information. According to the transmission configuration indicator TCI state indication method of the embodiment of the present disclosure, the overhead of transmission configuration indicator TCI state indication signaling is reduced.

[0093] Optionally, when the CC list includes a CC list configured based on a TRP transmission type corresponding to a component carrier or a band portion, updating the target state of the component carrier or band portion in the CC list corresponding to the TRP corresponding to the TCI state indication information based on the TCI state indication information includes: According to the TCI status indication information, updating the target status of the component carrier or band part in the CC list of the single TRP transmission corresponding to the TRP corresponding to the TCI status indication information; Based on the TCI status indication information, updating the target status of the component carrier or band portion corresponding to the TRP corresponding to the TCI status indication information in the CC list of multi-TRP transmission.

[0094] For example, in three CC lists set based on the TRP transmission type corresponding to a component carrier or band portion, CC list 1 is a CC list that supports single TRP transmission corresponding to TRP1 and includes CC1-1, CC list 2 is a CC list that supports single TRP transmission corresponding to TRP2 and includes CC2-1, and CC list 3 is a CC list that supports multi-TRP transmission and includes CC3-1.

[0095] If the TCI state indication information is two S-DCIs, when one S-DCI instructs TRP1 to update to TCI state 5, the TCI state of CC1-1 and CC3-1 (corresponding to TRP1) is updated to 5, and when one S-DCI instructs TRP2 to update to TCI state 6, the TCI state of CC2-1 and CC3-1 (corresponding to TRP2) is updated to 6.

[0096] The transmission setting indicator TCI state indication method according to an embodiment of the present disclosure configures CC / BWPs supporting different TRP transmission types in a CC list and updates the states of the CC / BWPs based on DCI signaling, thereby realizing updating the TCI states (or state groups) of CC / BWPs corresponding to multiple TRPs using one DCI.The transmission setting indicator TCI state indication method according to an embodiment of the present disclosure reduces the overhead of transmission setting indicator TCI state indication signaling and ensures the transmission of mTRPs.

[0097] Optionally, the component carriers or band portions in the CC list are: Single downlink control information S-DC mode component carrier or band portion, and / or Including component carriers or band portions of multi-downlink control information M-DCI mode, The above-mentioned updating of the target state of the component carrier or the band part in the component carrier CC list based on the TCI state indication information includes: If the DCI in which the TCI status indication information is located is an S-DCI, updating a target state of a first component carrier or band portion corresponding to the S-DCI, where the first component carrier or band portion is a component carrier or band portion of an S-DCI mode in the CC list; or If the DCI in which the TCI status indication information is located is an M-DCI, updating the target status of a second component carrier or band portion corresponding to the M-DCI, where the second component carrier or band portion is a component carrier or band portion of an M-DCI mode in the CC list.

[0098] Specifically, a component carrier or band portion of the single downlink control information S-DCI mode refers to a component carrier that supports the single downlink control information S-DCI mode or a component carrier band portion that supports the single downlink control information S-DCI mode.

[0099] A component carrier or band portion of the multi-downlink control information M-DCI mode refers to a component carrier that supports the multi-downlink control information M-DCI mode or a component carrier band portion that supports the multi-downlink control information M-DCI mode.

[0100] That is, the component carrier or band portion in the CC list is Component carrier in single downlink control information (S-DCI) mode; Component carrier band portion of single downlink control information (S-DCI) mode; Component carriers in multi-downlink control information (M-DCI) mode; and component carrier band portions of the multiple downlink control information (M-DCI) mode, or a combination thereof.

[0101] In one possible implementation, the terminal receives a CC list configured by the base station, which includes CC1, CC2, and CC3. CC1 supports S-DCI, CC2 and CC3 support M-DCI, CC1 corresponds to TRP1 and TRP2, CC2 corresponds to TRP1, and CC3 corresponds to TRP2.

[0102] For example, if the TCI status indication information is M-DCI, M-DCI1 is associated with TRP1, and M-DCI2 is associated with TRP2. After receiving M-DCI1, the TCI status of CC2 is updated, and after receiving M-DCI2, the TCI status of CC3 is updated.

[0103] For example, if the TCI status indication information is S-DCI, the S-DCI instructs the terminal to update the CC corresponding to TRP1 to TCI status 3 and the CC corresponding to TRP2 to TCI status 4. After receiving the S-DCI, the terminal updates the TCI status of CC1 corresponding to TRP1 to TCI status 3 and updates the TCI status of CC1 corresponding to TRP2 to TCI status 4.

[0104] In one possible implementation, S-DCI corresponds to CC / BWP in all S-DCI modes, and M-DCI corresponds to CC / BWP in all M-DCI modes. The terminal receives a CC list configured by the base station, which includes CC1, CC2, and CC3. CC1 supports S-DCI, and CC2 and CC3 support M-DCI. CC1 corresponds to TRP1 and TRP2, CC2 corresponds to TRP1, and CC3 corresponds to TRP2.

[0105] For example, if the TCI status indication information is M-DCI, all CCs of the M-DCI mode, CC2 and CC3, are updated.

[0106] Exemplarily, if the TCI status indication information is S-DCI, CC1 of all S-DCI modes is updated.

[0107] It should be understood that the transmission configuration indicator (TCI) status indication method according to the embodiment of the present disclosure can be applied to multiple CC list configuration methods, for example, one CC list may include CC / BWPs configured as single DCI mode and CC / BWPs configured as multi-DCI mode, or in multiple CC lists, all CC / BWPs in one CC list are in single DCI mode and all CC / BWPs in one CC list are in multi-DCI mode.

[0108] For example, When one CC list is configured as S-DCI mode and M-DCI mode, In multiple CC lists corresponding to different TRPs, each CC list may be configured as a CC for S-DCI mode and a CC for M-DCI mode, In multiple CC lists corresponding to different TRPs, each TRP corresponds to one S-DCI mode list and one M-DCI mode list, respectively; In multiple CC lists set based on the TRP transmission type corresponding to a component carrier or band portion, each CC list may be set as a CC in S-DCI mode and a CC in M-DCI mode, For example, in multiple CC lists configured based on the TRP transmission type corresponding to a component carrier or band portion, each CC list may be divided again into one S-DCI mode list and one M-DCI mode list.

[0109] It should be understood that the above is an example for facilitating understanding of the present invention and does not limit the present invention in any way.

[0110] The transmission configuration indicator TCI state indication method according to an embodiment of the present disclosure configures CC / BWPs of S-DCI and M-DCI modes in a CC list, and updates the state of the CC / BWPs based on DCI signaling, thereby realizing updating CC / BWPs corresponding to multiple TRPs using one DCI.The transmission configuration indicator TCI state indication method according to an embodiment of the present disclosure reduces the overhead of transmission configuration indicator TCI state indication signaling and ensures the transmission of mTRPs.

[0111] Optionally, the method further comprises: determining a DCI signaling type of the DCI in which the TCI status indication information is located based on a first predetermined correspondence relationship and a resource set in which the TCI status indication information is located; and / or Further comprising: determining a TRP corresponding to the TCI status indication information based on a second predetermined correspondence relationship and a resource set in which the TCI status indication information is located; The first correspondence relationship is a correspondence relationship between the resource set and the DCI signaling type, and the second correspondence relationship is a correspondence relationship between the resource set and the TRP.

[0112] In an embodiment of the present disclosure, the DCI signaling type and / or corresponding TRP of the DCI carrying the TCI status indication information can be determined based on the resource set in which the DCI carrying the TCI status indication information is located (which can also be understood as the resource set used when transmitting the DCI).

[0113] The first correspondence relationship and the second correspondence relationship may be set in advance by the base station for the terminal.

[0114] For example, if DCI preset to be transmitted on CORESET1 is S-DCI, when DCI signaling is transmitted on CORESET1, the UE may determine that the DCI signaling currently transmitted on CORESET1 is S-DCI. DCI signaling not transmitted on CORESET1 is M-DCI. It should be understood that a resource set used for M-DCI transmission may be preset, but a resource set used for S-DCI transmission may not be preset, or a resource set used for transmission of both M-DCI and S-DCI may be preset, and therefore description thereof will be omitted here.

[0115] For example, the TCI status indication information preset to be transmitted on CORESET0 and CORESET1 is for updating the status of the CC corresponding to TRP0, and the TCI status indication information preset to be transmitted on CORESET2 and CORESET3 is for updating the status of the CC corresponding to TRP1. When the TCI status indication information is transmitted on CORESET1, the terminal can determine that the TCI status indication information currently transmitted on CORESET1 is for updating the status of the CC corresponding to TRP0.

[0116] For example, the base station indicates two TCI states to the terminal via DCI signaling or first MAC-CE signaling. The base station configures five CORESETs for the terminal via RRC signaling, which are denoted as CORESET#0, CORESET#1, CORESET#2, CORESET#3, and CORESET#4. At the same time, the base station configures a second correspondence between the TCI states and CORESETs for the terminal. The second correspondence can be configured via MAC-CE or RRC signaling. One method is for the RRC signaling to indicate whether to use the first, second, or both of the two TCI states in each CORESET configuration. It should be understood that each TCI state corresponds to one TRP. For example, in the case of CORESET#2, the base station instructs the setting of two TCI states, one for updating the state of the CC corresponding to TRP0 to TCI state 3 and the other for updating the state of the CC corresponding to TRP2 to TCI state 6, and when DCI signaling is transmitted from CORESET#2, the terminal can update the state of the CC corresponding to TRP1 and the state of the CC corresponding to TRP2 based on the DCI signaling.

[0117] The transmission configuration indicator TCI status indication method according to an embodiment of the present disclosure associates a resource set with DCI signaling and TCI status indication information, thereby enabling a terminal to determine one or more TCI statuses through one TCI status indication information and to determine the signaling type of the current DCI signaling, thereby enabling a terminal to update CC / BWPs corresponding to multiple TRPs using one DCI.The transmission configuration indicator TCI status indication method according to an embodiment of the present disclosure reduces the overhead of transmission configuration indicator TCI status indication signaling and ensures the transmission of mTRPs.

[0118] Optionally, the TCI state indication information is for indicating a TCI state or a group of TCI states.

[0119] Specifically, the terminal receives TCI status indication information sent from the base station, and the TCI status indication information can be used to indicate the TCI status.

[0120] When the TCI status indication information is used to indicate the TCI status, the TCI status indication information can be used by the corresponding TRP on the corresponding CC list to update the TCI status of the corresponding CC / BWP. At this time, it should be understood that both the uplink beam and the downlink beam of one TRP adopt the indicated TCI status, that is, the indicated TCI status adopted by both the uplink beam and the downlink beam of one TRP is the same. The embodiments of the present disclosure can be applied to a combined TCI mode, that is, one TRP transmits and receives using the same uplink and downlink beams.

[0121] Optionally, the TCI status indication information comprises a TCI single status indication information or a TCI status group indication information; the TCI single state indication information is for indicating one TCI state, The TCI status group indication information includes upstream TCI status indication information and downstream TCI status indication information.

[0122] The terminal receives TCI status indication information transmitted from the base station, and the TCI status indication information can be used to indicate one TCI status group or multiple TCI status groups. One TCI status group may include an uplink TCI status and a downlink TCI status, and the uplink TCI status indication information is for updating the uplink TCI status, and the downlink TCI status indication information is for updating the downlink TCI status. The embodiments of the present disclosure can be applied to an independent TCI mode, in which the uplink beam and the downlink beam used for each TRP are different.

[0123] The transmission configuration indicator (TCI) state indication method according to the embodiment of the present disclosure can be combined with the transmission configuration indicator (TCI) state indication method according to each of the above embodiments, and the description thereof will be omitted here.

[0124] According to the transmission setting indicator TCI state indication method of an embodiment of the present disclosure, the TCI state indication information can indicate a TCI state or a TCI state group, and the indication method of the TCI state indication information of an embodiment of the present disclosure can be combined with each of the above embodiments. Therefore, according to the transmission setting indicator TCI state indication method of an embodiment of the present disclosure, the overhead of transmission setting indicator TCI state indication signaling is reduced, the transmission of mTRP is guaranteed, and the flexibility of transmission setting indicator TCI state indication is improved.

[0125] FIG. 2 is a second flowchart of a transmission configuration indicator (TCI) status indication method according to an embodiment of the present disclosure. As shown in FIG. 2, the transmission configuration indicator (TCI) status indication method according to an embodiment of the present disclosure is applied to a base station, and the method includes: sending a transmission configuration indicator (TCI) status indication information to a terminal, the TCI status indication information being for instructing the terminal to update a target status of a component carrier or a band part in a component carrier CC list; The CC list is preset by the base station for the terminal, and the CC list corresponds to a plurality of TCI states or a plurality of TCI state groups, and the target state of the component carrier or band portion includes a TCI state of the component carrier, a TCI state group of the component carrier, a TCI state of the band portion, or a TCI state group of the band portion.

[0126] Specifically, the CC list is preconfigured by the base station for the terminal, and there may be one or more CC lists, and the CC list may include a CC or a BWP. The CC list corresponds to multiple TCI states or TCI state groups, and it can be understood that a component carrier in the CC list corresponds to multiple TCI states or multiple TCI state groups, or that a band portion in the CC list corresponds to multiple TCI states or multiple TCI state groups. The embodiments of the present disclosure do not limit how a base station configures a CC list.

[0127] For the description of the embodiments of the present disclosure, such as the TCI state, TCI state indication information, CC, BWP, and the correspondence between the TCI state and TRP, please refer to the above description, and the description will be omitted here.

[0128] The transmission setting indicator TCI status indication method according to an embodiment of the present disclosure provides multiple CC list configuration types, thereby realizing the configuration of multiple CC lists. After a terminal receives TCI status indication information transmitted from a base station, the terminal can update multiple CC lists based on the TCI status indication information, and realize the updating of CC / BWPs corresponding to one or more TRPs using one TCI status indication information. The transmission setting indicator TCI status indication method according to an embodiment of the present disclosure reduces the overhead of transmission setting indicator TCI status indication signaling and ensures the transmission of mTRPs.

[0129] Optionally, the CC list may include: CC list set individually for each TRP, A CC list configured based on the TRP transmission type corresponding to the component carrier or band portion; a CC list configured based on the DCI mode, or a combination thereof.

[0130] For the type of CC list set on the base station side, please refer to the above explanation, and the explanation will be omitted here.

[0131] Optionally, the TCI status indication information is for updating the target status of the component carrier or band portion corresponding to the TRP corresponding to the TCI status indication information.

[0132] For the description of updating the target state of the TRP corresponding to the TCI state indication information, please refer to the above description, and the description will be omitted here.

[0133] Optionally, the component carriers or band portions in the CC list are: Single downlink control information S-DC mode component carrier or band portion, and / or Including component carriers or band portions of multi-downlink control information M-DCI mode, If the DCI in which the TCI status indication information is located is an S-DCI, the TCI status indication information is for updating a target state of a first component carrier or band portion corresponding to the S-DCI, and the first component carrier or band portion is a component carrier or band portion of an S-DCI mode in the CC list; or If the DCI in which the TCI status indication information is located is an M-DCI, the TCI status indication information is for updating the target state of a second component carrier or band portion corresponding to the M-DCI, and the second component carrier or band portion is a component carrier or band portion of an M-DCI mode in the CC list.

[0134] For an explanation of updating the state of the CC / BWP corresponding to the DCI mode based on the DCI signaling type of the DCI containing the TCI state indication information, please refer to the above description and the explanation will be omitted here.

[0135] Optionally, the method further comprises: further comprising setting a first correspondence relationship and / or a second correspondence relationship in the terminal; The first correspondence relationship is a correspondence relationship between a resource set and a DCI signaling type, and the first correspondence relationship is for determining the DCI signaling type of the DCI in which the TCI status indication information is located. The second correspondence relationship is a correspondence relationship between the resource set and a TRP, and the second correspondence relationship is for determining the TRP corresponding to the TCI status indication information.

[0136] Specifically, the base station may set the first correspondence relationship and / or the second correspondence relationship for the terminal via signaling such as an RRC message or MAC-CE, and the embodiments of the present disclosure do not limit the manner in which the base station sets the first correspondence relationship and / or the second correspondence relationship for the terminal.

[0137] For example, the base station may preset DCI transmitted on CORESET1 as S-DCI for the terminal, and when DCI signaling is transmitted on CORESET1, the terminal may determine that the current DCI signaling transmitted on CORESET1 is S-DCI. DCI signaling not transmitted on CORESET1 is M-DCI. It should be understood that a resource set used for M-DCI transmission may be preset, but a resource set used for S-DCI transmission may not be preset, and a resource set used for transmission of both M-DCI and S-DCI may be preset, and therefore description thereof will be omitted here.

[0138] For example, the base station may preset TCI status indication information transmitted on CORESET0 and CORESET1 to the terminal to be used for updating the status of the CC corresponding to TRP0, and may preset TCI status indication information transmitted on CORESET2 and CORESET3 to be used for updating the status of the CC corresponding to TRP1. If the TCI status indication information is transmitted on CORESET1, the terminal may determine that the TCI status indication information currently transmitted on CORESET1 is used for updating the status of the CC corresponding to TRP0.

[0139] In one embodiment, the base station indicates two TCI states to the terminal via DCI signaling or first MAC-CE signaling. The base station configures five CORESETs for the terminal via RRC signaling, which are denoted as CORESET#0, CORESET#1, CORESET#2, CORESET#3, and CORESET#4. At the same time, the base station configures a second correspondence between the TCI states and CORESETs for the terminal. The second correspondence can be configured via MAC-CE or RRC signaling. The second correspondence can be configured in several ways, as follows:

[0140] For example, the RRC signaling indicates whether to use the first, second, or both TCI states of two TCI states in the configuration of each CORESET. It should be understood that each TCI state corresponds to one TRP. For example, in the case of CORESET#2, the base station instructs to configure two TCI states, one for updating the state of the CC corresponding to TRP0 to TCI state 3 and the other for updating the state of the CC corresponding to TRP2 to TCI state 6. When DCI signaling is transmitted from CORESET#2, the terminal can update the state of the CC corresponding to TRP1 and the state of the CC corresponding to TRP2 based on the DCI signaling.

[0141] For example, the base station configures a CORESET group via RRC, and configures a second correspondence between the TCI state and the CORESET group for the terminal. Group 1 includes {CORESET#0, CORESET#1, CORESET#2}, and group 2 includes {CORESET#3, CORESET#4}. Group 1 is configured to use the first and second TCI states, and group 2 is configured to use the second TCI state. Alternatively, the protocol may stipulate that a CORESET in group 1 uses two TCI states, and that group 2 uses the first TCI state. In this case, there is no need to configure the TCI states to be used in the groups. The CORESET ID in the CORESET group can be updated by the MAC-CE.

[0142] Exemplarily, the RRC signaling configures a CORESET set corresponding to a first TCI state of the indication and a CORESET set corresponding to a second TCI state of the indication. For example, the RRC configures the first TCI state to be associated with {CORESET#0, CORESET#1} and the second TCI state to be associated with {CORESET#2, CORESET#3, CORESET#4}. The RRC may configure the first TCI state to be associated with {CORESET#0, CORESET#1, CORESET#3} and the second TCI state to be associated with {CORESET#2, CORESET#3, CORESET#4}.

[0143] Exemplarily, MAC-CE signaling is used to indicate the second correspondence, e.g., the MAC-CE signaling activating the TCI state includes an additional CORESET set or CORESET group associated with each TCI state bit.

[0144] It should be understood that the above is an example for facilitating understanding of the present invention and does not limit the present invention in any way.

[0145] Optionally, the TCI status indication information comprises a TCI single status indication information or a TCI status group indication information; the TCI single state indication information is for indicating one TCI state, The TCI status group indication information includes upstream TCI status indication information and downstream TCI status indication information. For an explanation of the TCI single state indication information and the TCI state group indication information, please refer to the above explanation, and the explanation will be omitted here.

[0146] In the transmission setting indicator TCI state indication method according to an embodiment of the present disclosure, the TCI state indication information can indicate a TCI state or a TCI state group, and the indication method of the TCI state indication information according to an embodiment of the present disclosure can be combined with each of the above-mentioned embodiments. Therefore, the transmission setting indicator TCI state indication method according to an embodiment of the present disclosure reduces the overhead of transmission setting indicator TCI state indication signaling, ensures the transmission of mTRP, and improves the flexibility of transmission setting indicator TCI state indication.

[0147] Hereinafter, a transmission configuration indicator (TCI) status indication method according to an embodiment of the present disclosure will be described with reference to several embodiments.

[0148] Updating the TCI status corresponding to the TRP in the following embodiments means updating the TCI status on the CC / BWP corresponding to the TRP.

[0149] Embodiment 1: A base station configures one CC list (hereinafter abbreviated as CC list) for a terminal, which includes N CCs, where N is a positive integer. The CC list in this embodiment is a CC list configured based on a DCI mode, and different CCs in the CC list correspond to different DCI modes.

[0150] Table 1 shows a CC list No. 1 according to an embodiment of the present disclosure. Table 1. CC List 1 [Table 1]

[0151] Here, CC_0 and CC_1 are set to M-DCI mode, the remaining CCs are set to S-DCI mode, CORESETPoolIndex is set in CORESET of CC_0 and CC_1, indicating that the TCI status indication is performed using the TCI status indication information carried by M-DCI on CC_0 and CC_1, and can be applied to mTRP transmission. CORESETPoolIndex is not set in the remaining CCs, indicating that the TCI status indication is performed using the TCI status indication information carried by S-DCI.

[0152] When the TCI status indication information carried by the S-DCI is used to indicate the TCI status, only the TCI status on the CC / BWP configured as the S-DCI mode is updated.

[0153] For example, if the TCI status indication information carried on the S-DCI indicates one TCI status, TCI_5, then CC_2, ..., CC_N-1, except for CC_0 and CC_1, are all updated to TCI_5, resulting in sTRP transmission. If the S-DCI indicates two TCI statuses (TCI_6, TCI_8), then CC_2, ..., CC_N-1, except for CC_0 and CC_1, are all updated to TCI_6 and TCI_8. Channels of different TRPs on each CC use TCI_6 and TCI_8 for transmission, respectively, resulting in mTRP transmission. This method can realize s-TRP / M-TRP switching together with the corresponding CC.

[0154] It should be understood that s-TRP / M-TRP switching includes switching from single-TRP (s-TRP) to multi-TRP (M-TRP) and switching from multi-TRP to single-TRP.

[0155] Switching from single-TRP to multi-TRP means that the most recent TRP transmission was a single-TRP transmission and the current TRP transmission is a multi-TRP transmission. For example, the first time, the TCI status of the CC corresponding to TRP0 is updated, and the second time, the status of the CCs corresponding to two TRPs, TRP0 and TRP1, is updated.

[0156] Switching from multi-TRP to single-TRP means that the most recent TRP transmission is a multi-TRP transmission and the current TRP transmission is a single-TRP transmission. For example, the first time, the status of the CCs corresponding to two TRPs, TRP0 and TRP1, is updated, and the second time, the TCI status of the CC corresponding to TRP0 is updated.

[0157] If the TCI status indication information carried by the M-DCI indicates a TCI status, only the TCI status on the CC / BWP configured as the M-DCI is updated, and the TCI status of the TRP corresponding to the value of CORESETPoolIndex on these CC / BWPs is updated based on the value of CORESETPoolIndex.

[0158] For example, if the DCI transmitted on a CORESET associated with CORESETPoolIndex0 indicates TCI_7, it is used to update the TCI status of the channels associated with CORESETPoolIndex0 on CC_0 and CC_1. For example, on CC_0, CORESET0 and CORESET1 are set to be associated with CORESETPoolIndex0, and on CC_1, CORESET0, CORESET1, and CORESET2 are set to be associated with CORESETPoolIndex0. In this way, CORESET0 and CORESET1 on CC_0 are all updated to TCI_7, and similarly, CORESET0, CORESET1, and CORESET2 on CC_1 are all updated to TCI_7.

[0159] In this way, the terminal can distinguish between different CCs in the list depending on whether the base station sets CORESETPoolIndex, and thereby can update only the TCI status of the partial CC in the list that corresponds to the DCI signaling type of the DCI in which the TCI status indication information is located each time.

[0160] It should be understood that the phrase "the terminal can distinguish between different CCs in the list depending on whether the base station sets CORESETPoolIndex" means that the terminal can distinguish whether the CCs in the list are in S-DCI mode or M-DCI mode depending on whether the base station sets CORESETPoolIndex, and can update the CCs of the corresponding mode based on the DCI signaling type.

[0161] Embodiment 2: The base station configures a TRP-specific CC list for the terminal, that is, configures one CC list for each TRP. In this embodiment, the CC list is configured individually for each TRP, and among the multiple CC lists in this embodiment, each CC list corresponds to a different TRP.

[0162] Table 2 is CC list No. 2 according to an embodiment of the present disclosure, and Table 3 is CC list No. 3 according to an embodiment of the present disclosure. The base station sets two CC lists, Table 2 and Table 3, for the terminal. Table 2. CC List 2 [Table 2] Table 3. CC List 3 [Table 3]

[0163] Here, each CC list corresponds to one TRP, and each CC list may include different CCs. "Each CC list may include different CCs" may mean including different numbers of CCs, and "Each CC list may include different CCs" may mean including different specific CCs when the number of CCs is the same. For example, Table 2 corresponds to TRP0 and includes N CCs, and Table 3 corresponds to TRP1 and includes N-1 CCs (excluding CC_1 and CC_2, but including CC_N). Assume that CORESETPoolIndex is set to CC_0 and CC_N-1, which indicates that the M-DCI mode is set and can be applied to mTRP transmission, and the remaining CCs are all set to S-DCI mode.

[0164] When the TCI status indication information carried by the S-DCI is used to indicate the TCI status of two TRPs, the CC / BWPs set as S-DCI mode in each CC list update their TCI status accordingly. For example, the S-DCI indicates two TCI statuses represented as TCI_5 and TCI_8. In this case, the TCI status of all CCs except CC_0 and CC_N-1 set as M-TRP mode in Table 2 is updated to TCI_5. Similarly, the TCI status of all CCs except CC_0 and CC_N-1 set as M-TRP mode in Table 3 is updated to TCI_8.

[0165] When the TCI status indication carried by the S-DCI is used to indicate the TCI status of one TRP, if the TCI status indication indicates that the TCI status of one of the TRPs is to be updated, the CC in the CC list of the corresponding TRP is updated, and the TCI status of the CC in the other list is maintained. For example, if the TCI status indication carried by the S-DCI indicates that TCI_6 is used to update the TCI status of TRP1, the TCI status of TRP1 of all CCs in Table 3 except CC_0 and CC_N-1 configured as M-TRP mode is updated to TCI_6, and the TCI status of TRP0 in the CC in Table 2 remains unchanged.

[0166] When the TCI status indication information carried by the S-DCI is used to indicate switching from mTRP to sTRP, the TCI status in the corresponding CC list is updated, the TCI status of the CC with the same index in another CC list is revoked, and the TCI status of the remaining CCs remains unchanged. Simultaneous s-TRP / m-TRP switching of multiple CCs / BWPs is realized. For example, the S-DCI indicates that TCI_10 switches from mTRP to sTRP and also switches to TRP0. In this way, the TCI status of all CCs in Table 2, except for CC_0 and CC_N-1 configured as M-DCI mode, is updated to TCI_10. Meanwhile, the TCI status of all CCs in Table 3, except for CC_0, CC_N-1, and CC_N configured as M-DCI mode, is revoked. The TRP1 status of CC_0, CC_N-1, and CC_N remains unchanged.

[0167] When the TCI status indication information carried by the M-DCI is used to indicate the TCI status, only the TCI status of the CC list corresponding to the M-DCI mode in the CC list corresponding to the CORESETPoolIndex is updated. For example, if the DCI transmitted on the CORESET associated with CORESETPoolIndex0 indicates TCI_7, the TCI status of TRP0 on the CC configured as the M-DCI mode in Table 2 is updated. That is, the TCI status on CC_0 and CC_N-1 is updated to TCI_7. When the DCI transmitted on the CORESET associated with CORESETPoolIndex0 indicates TCI_7, the TCI status of TRP0 on the CC configured as the M-DCI mode in Table 2 is updated. That is, the TCI status on CC_0 and CC_N-1 is updated to TCI_7. If the DCI transmitted on the CORESET associated with CORESETPoolIndex1 indicates TCI_3, update the TCI state of TRP1 on the CC configured as M-DCI mode in Table 3, i.e., update the TCI state on CC_0 and CC_N-1 to TCI_3 in Table 3. It should be understood that TRP0 is associated with CORESETPoolIndex0 and TRP1 is associated with CORESETPoolIndex1. The DCI signaling type of M-DCI type is associated with CORESETPoolIndex0 and CORESETPoolIndex1.

[0168] It should be understood that when the TCI state indication indicates switching from mTRP to sTRP, it may mean that the most recent TCI state indication indicates multiple TCI states and the current TCI state indication indicates one TCI state. When the TCI state indication indicates switching from sTRP to mTRP, it may mean that the most recent TCI state indication indicates one TCI state and the current TCI state indication indicates multiple TCI states.

[0169] Embodiment 3: Different CCs are divided into three CC lists depending on whether they support mTRP transmission. In this embodiment, the CC list is a CC list set based on the TRP transmission type corresponding to a component carrier or a band portion, and the multiple CC lists in this embodiment include a CC list corresponding to a CC / BWP that supports mTRP transmission and a CC list corresponding to a CC / BWP that only supports sTRP transmission.

[0170] Table 4 is CC list No. 4 according to an embodiment of the present disclosure, Table 5 is CC list No. 5 according to an embodiment of the present disclosure, and Table 6 is CC list No. 6 according to an embodiment of the present disclosure. The base station sets three CC lists, Table 4, Table 5, and Table 6, for the terminal as shown in Table 4, Table 5, and Table 6. Table 4. CC List No. 4 [Table 4] Table 5. CC List No. 5 [Table 5] Table 6. CC List No. 6 [Table 6]

[0171] Here, Table 4 shows CCs that can support only sTRP transmission, corresponding to TRP0. Table 5 shows CCs that can support mTRP transmission. Meanwhile, Table 6 shows CCs that can support only sTRP transmission, corresponding to TRP1. The CCs in each list are all different. For some CCs in Table 5, the base station can set CORESETPoolIndex, which indicates that these CCs are configured as M-DCI mode, i.e., these CCs use the TCI status indication information carried by M-DCI to indicate the TCI status, and can be applied to mTRP transmission. Hereinafter, it is assumed that none of the CCs in Table 5 are configured with CORESETPoolIndex and are all configured as S-DCI mode.

[0172] When the TCI status indication information carried by the S-DCI is used to indicate the TCI status, if the TCI status indication information indicates the TCI status of two TRPs, all three CC lists update the TCI status of the TRPs on that CC. For example, if the TCI status indication information carried by the S-DCI indicates two TCI statuses represented as TCI_5 and TCI_8, TCI_5 corresponds to TRP0 and TCI_8 corresponds to TRP1. In this case, all CCs in Tables 4 and 5 update the TCI status of their TRP0s to TCI_5. Similarly, all CCs in Tables 5 and 6 update the TCI status of their TRP1s to TCI_8.

[0173] When the TCI status indication carried by the S-DCI is used to indicate the TCI status of one TRP, if the TCI indicates that the TCI status of one of the TRPs is to be updated, the CCs in the two CC lists of the corresponding TRPs are updated, and the TCI status of the CCs in the other list is maintained. For example, if the TCI status indication carried by the S-DCI indicates that TCI_6 is used to update the TCI status of TRP1, then the TCI status of TRP1 in all CCs in Tables 5 and 6 is updated to TCI_6, the TCI status of TRP0 in the CCs in Table 4 remains unchanged, and the TCI status of TRP0 in the CCs in Table 5 remains unchanged.

[0174] If the TCI status indication information carried by the S-DCI indicates that the TCI status is to be switched from mTRP to sTRP, the TCI status in the corresponding CC list is updated, and the TCI status of the remaining CCs in the list remains unchanged. Simultaneous s-TRP / M-TRP switching of multiple CCs / BWPs is realized. For example, the S-DCI indicates that TCI_10 indicates that it is to be switched from mTRP to sTRP and to TRP0. In this way, the TCI status of all TRP0s of all CCs in Tables 4 and 5 is updated to TCI_10. Meanwhile, the TCI status of all TRP1s of all CCs in Table 5 is invalidated. The TCI status of TRP1s of all CCs in Table 6 remains unchanged.

[0175] Embodiment 4: In the above embodiments 1 to 3, when updating the TCI status, it is not necessary to distinguish between mTRPs in S-DCI mode and M-DCI mode. The TCI status of the TRP of the CC in the corresponding list may be updated using the TCI status indicated by the TCI status indication information carried by the S-DCI, and the TCI status of the TRP of the CC in the corresponding list may be updated using the TCI status indicated by the TCI status indication information carried by the M-DCI.

[0176] Taking embodiment 1 as an example, the base station configures a CC list for the terminal, which includes N CCs, as shown in Table 1.

[0177] Here, CORESET of CC_0 and CC_1 is set to CORESETPoolIndex, which indicates that M-DCI mode is set on CC_0 and CC_1 and can be applied to mTRP transmission. CORESETPoolIndex is not set for the remaining CCs, which indicates that S-DCI mode is set.

[0178] When the TCI status indication information carried by the S-DCI is used to indicate the TCI status, only the TCI status on all CCs / BWPs is updated. For example, if the S-DCI indicates one TCI status, TCI_5, and sTRP transmission is used, and TRP0 is used, CCs_2, ..., CC_N-1 are all updated to TCI_5. Meanwhile, the TCI status of the TRP corresponding to CORESETPoolIndex0 on CCs_0 and CC_1 is updated to TCI_5, while the TCI status of the TRP corresponding to CORESETPoolIndex1 remains unchanged. If the S-DCI indicates two TCI statuses (TCI_6, TCI_8), CCs_2, ..., CC_N-1 are all updated to TCI_6 and TCI_8. The channels of different TRPs on each CC use TCI_6 and TCI_8 for transmission, respectively, which is mTRP transmission. In CC_0 and CC_1, the TCI state of the TRP corresponding to CORESETPoolIndex0 is updated to TCI_6, and the TCI state of the TRP corresponding to CORESETPoolIndex1 is updated to TCI_8.

[0179] When the TCI status indication information carried by the M-DCI indicates a TCI status, it can indicate only one TCI status, realize the TCI status update of one TRP, and cannot realize dynamic switching between sTRP and mTRP. For example, if the DCI transmitted on the CORESET associated with CORESETPoolIndex0 indicates TCI_7, it is used to update the TCI status of the TRPs corresponding to CORESETPoolIndex0 on CC_0 and CC_1. For CC_2, ..., CC_N-1, the TCI status used for TRP0 is updated to TCI_7. For TRP1, a different DCI needs to be adopted for indication, which is the same as the update method for TRP0, and therefore, it should be understood that a description thereof is omitted here.

[0180] Other embodiments are similar to this one and will not be described again.

[0181] Embodiment 5: In embodiments 1 to 4, depending on whether the TCI status indication information supporting S-DCI indicates the TCI status or the TCI status indication information supporting M-DCI indicates the TCI status, that is, whether the S-DCI mode or the M-DCI mode is set, the CC list can be further divided and a CC list for the S-DCI mode and a CC list for the M-DCI mode can be set. The remaining indication methods are the same as those described above, and therefore the description will be omitted.

[0182] Embodiment 6: As described in embodiments 1-5, the TCI status indication information instructed by the base station to the terminal can indicate one TCI status for updating the TCI status of the corresponding TRP on the corresponding CC list. This scenario corresponds to the combined TCI mode, that is, each TRP transmits and receives using the same uplink beam and downlink beam. Another scenario is the independent TCI mode, in which the uplink beam and the downlink beam used for each TRP are different. In this case, the base station needs to indicate to the terminal one TCI state group including the uplink TCI state and the downlink TCI state. In the embodiment of the present disclosure, the TCI state indication information indicated by the base station to the terminal is used to update one TCI state group, that is, to update the TCI state group of the corresponding TRP on the corresponding CC list. The remaining methods are the same, and therefore will not be described again.

[0183] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A transmission configuration indicator (TCI) status indicating device according to an embodiment of the present disclosure will be described below with reference to the drawings according to an embodiment of the present disclosure.

[0184] Referring to FIG. 3, FIG. 3 is a first schematic diagram of the structure of a transmission configuration indicator (TCI) status indicating device according to an embodiment of the present disclosure. The embodiment of the present disclosure provides a transmission configuration indicator (TCI) status indicating device applied to a terminal, the device comprising: a first receiving unit 310 for receiving transmission configuration indicator (TCI) status indication information sent from a base station; a first updating unit 320 for updating a target state of a component carrier or a band portion in a component carrier CC list according to the TCI state indication information; The CC list is pre-configured by the base station for the terminal, the CC list corresponds to multiple TCI states or multiple TCI state groups, there is one or more CC lists, and the target state of the component carrier or band portion includes a TCI state of the component carrier, a TCI state group of the component carrier, a TCI state of the band portion, or a TCI state group of the band portion.

[0185] A transmission setting indicator (TCI) status indication device according to an embodiment of the present disclosure presets one or more CC lists, receives TCI status indication information transmitted from a base station, and updates the status (TCI state or TCI status group) in the CC list based on the TCI status indication information, thereby realizing updating CC / BWPs corresponding to multiple TRPs using one TCI status indication information. The transmission setting indicator (TCI) status indication method according to an embodiment of the present disclosure reduces the overhead of transmission setting indicator (TCI) status indication signaling and ensures the transmission of mTRPs.

[0186] Optionally, the CC list may include: CC list set individually for each TRP, A CC list configured based on the TRP transmission type corresponding to the component carrier or band portion, or a CC list configured based on the DCI mode, or a combination thereof.

[0187] Optionally, updating the target state of a component carrier or a band portion in a component carrier CC list based on the TCI status indication information, as described above, comprises: The method includes updating the target state of the component carrier or band portion corresponding to the TRP corresponding to the TCI status indication information based on the TCI status indication information.

[0188] Optionally, the component carriers or band portions in the CC list are: Single downlink control information S-DC mode component carrier or band portion, and / or Including component carriers or band portions of multi-downlink control information M-DCI mode, The above-mentioned updating of the target state of the component carrier or the band part in the component carrier CC list based on the TCI state indication information includes: If the DCI in which the TCI status indication information is located is an S-DCI, updating a target state of a first component carrier or band portion corresponding to the S-DCI, where the first component carrier or band portion is a component carrier or band portion of an S-DCI mode in the CC list; or If the DCI in which the TCI status indication information is located is an M-DCI, updating the target status of a second component carrier or band portion corresponding to the M-DCI, where the second component carrier or band portion is a component carrier or band portion of an M-DCI mode in the CC list.

[0189] Optionally, the apparatus further comprises a first determining unit, wherein the first determining unit: determining a DCI signaling type of the DCI in which the TCI status indication information is located based on a first predetermined correspondence relationship and a resource set in which the TCI status indication information is located; and / or The TRP corresponding to the TCI status indication is determined based on the second correspondence relationship set and the resource set where the TCI status indication is located; The first correspondence relationship is a correspondence relationship between the resource set and the DCI signaling type, and the second correspondence relationship is a correspondence relationship between the resource set and the TRP.

[0190] Optionally, the TCI state indication information is for indicating a TCI state or a group of TCI states.

[0191] The methods and devices according to the embodiments of the present disclosure are based on the concept of the same application, and the principles for solving the problems of the methods and devices are similar. Therefore, the above-mentioned transmission setting indicator (TCI) status indication device according to the embodiments of the present disclosure can realize all the method steps realized by the embodiment of the above-mentioned transmission setting indicator (TCI) status indication method applied to the terminal, and can achieve the same technical effects. Therefore, the implementations of the device and the method can refer to each other, and overlapping points will be omitted.

[0192] Referring to FIG. 4, FIG. 4 is a second schematic diagram of the structure of a transmission configuration indicator (TCI) status indicating device according to an embodiment of the present disclosure. The embodiment of the present disclosure provides a transmission configuration indicator (TCI) status indicating device applied to a base station, the device comprising: a second sending unit 410 for sending a transmission configuration indicator (TCI) status indication information to a terminal, the TCI status indication information being for instructing the terminal to update a target status of a component carrier or a band part in a component carrier CC list; The CC list is preset by the base station for the terminal, and the CC list corresponds to a plurality of TCI states or a plurality of TCI state groups, and the target state of the component carrier or band portion includes a TCI state of the component carrier, a TCI state group of the component carrier, a TCI state of the band portion, or a TCI state group of the band portion.

[0193] A transmission setting indicator (TCI) status indication device according to an embodiment of the present disclosure presets one or more CC lists, receives TCI status indication information transmitted from a base station, and updates the status (TCI state or TCI status group) in the CC list based on the TCI status indication information, thereby realizing updating CC / BWPs corresponding to multiple TRPs using one TCI status indication information. According to a transmission setting indicator (TCI) status indication method according to an embodiment of the present disclosure, the overhead of transmission setting indicator (TCI) status indication signaling is reduced and the transmission of mTRPs is guaranteed.

[0194] Optionally, the CC list may include: CC list set individually for each TRP, A CC list configured based on the TRP transmission type corresponding to the component carrier or band portion; a CC list configured based on the DCI mode, or a combination thereof.

[0195] Optionally, the TCI status indication information is for updating the target status of the component carrier or band portion corresponding to the TRP corresponding to the TCI status indication information.

[0196] Optionally, the component carriers or band portions in the CC list are: Single downlink control information S-DC mode component carrier or band portion, and / or Including component carriers or band portions of multi-downlink control information M-DCI mode, If the DCI in which the TCI status indication information is located is an S-DCI, the TCI status indication information is for updating a target state of a first component carrier or band portion corresponding to the S-DCI, and the first component carrier or band portion is a component carrier or band portion of an S-DCI mode in the CC list; or If the DCI in which the TCI status indication information is located is an M-DCI, the TCI status indication information is for updating the target state of a second component carrier or band portion corresponding to the M-DCI, and the second component carrier or band portion is a component carrier or band portion of an M-DCI mode in the CC list.

[0197] Optionally, the apparatus further includes a third sending unit, wherein the third sending unit is for setting the first correspondence relationship and / or the second correspondence relationship in the terminal; The first correspondence is a correspondence between a resource set and a DCI signaling type, and the first correspondence is for determining the DCI signaling type of the DCI in which the TCI status indication information is located. The second correspondence is a correspondence between a resource set and a TRP, and the second correspondence is for determining the TRP corresponding to the TCI status indication information.

[0198] Optionally, the TCI state indication information is for indicating a TCI state or a group of TCI states.

[0199] The methods and devices according to the embodiments of the present disclosure are based on the concept of the same application, and the principles for solving the problems of the methods and devices are similar. Therefore, the above transmission setting indicator (TCI) status indication device according to the embodiments of the present disclosure can realize all the method steps realized by the embodiment of the above transmission setting indicator (TCI) status indication method applied to a base station, and can achieve the same technical effects. Therefore, the implementations of the device and the method can refer to each other, and overlapping points will be omitted.

[0200] FIG. 5 is a schematic diagram of the structure of a terminal according to an embodiment of the present disclosure. As shown in FIG. 5, the terminal includes a memory 520, a transceiver 500, and a processor 510, where the processor 510 and the memory 520 may be physically separated.

[0201] The memory 520 is for storing computer programs, and the transceiver 500 is for transmitting and receiving data under the control of the processor 510 .

[0202] Specifically, the transceiver 500 is for receiving and transmitting data under the control of a processor 510 .

[0203] In FIG. 5, the bus interface 540 may include any number of interconnected buses and bridges, specifically, connecting various circuits, such as one or more processors represented by processor 510 and memory represented by memory 520, together. The bus interface 540 may also connect various other circuits, such as peripheral devices, voltage regulators, and power management circuits, all of which are well known in the art and will not be further described herein. The bus interface provides an interface. The transceiver 500 may be multiple elements, i.e., includes a transmitter and a receiver, and provides a unit for communicating with various other devices over transmission media. These transmission media include wireless channels, wired channels, optical cables, and the like. For different terminals, the device may further include a user interface 530, which may be an interface externally or internally connectable to required devices, including, but not limited to, a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0204] The processor 510 manages the bus architecture and general processing, and the memory 520 may store data used by the processor 510 in performing operations.

[0205] Optionally, the processor 510 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD), and the processor may employ a multi-core architecture.

[0206] The processor 510 is used to call a computer program stored in the memory 520 and perform operations corresponding to a transmission configuration indicator (TCI) status indication method applied to a terminal according to an embodiment of the present disclosure according to the obtained executable instructions, for example, the operations include: receiving a transmission configuration indicator (TCI) status indication information sent from a base station; updating a target state of a component carrier or a band portion in a component carrier CC list based on the TCI state indication information; The CC list is pre-configured by the base station for the terminal, the CC list corresponds to multiple TCI states or multiple TCI state groups, there is one or more CC lists, and the target state of the component carrier or band portion includes a TCI state of the component carrier, a TCI state group of the component carrier, a TCI state of the band portion, or a TCI state group of the band portion.

[0207] Optionally, the CC list may include: CC list set individually for each TRP, A CC list configured based on the TRP transmission type corresponding to the component carrier or band portion, or a CC list configured based on the DCI mode, or a combination thereof.

[0208] Optionally, updating the target state of a component carrier or a band portion in a component carrier CC list based on the TCI status indication information, as described above, comprises: The method includes updating the target state of the component carrier or band portion corresponding to the TRP corresponding to the TCI status indication information based on the TCI status indication information.

[0209] Optionally, the component carriers or band portions in the CC list are: Single downlink control information S-DC mode component carrier or band portion, and / or Including component carriers or band portions of multi-downlink control information M-DCI mode, The above-mentioned updating of the target state of the component carrier or the band part in the component carrier CC list based on the TCI state indication information includes: If the DCI in which the TCI status indication information is located is an S-DCI, updating a target state of a first component carrier or band portion corresponding to the S-DCI, where the first component carrier or band portion is a component carrier or band portion of an S-DCI mode in the CC list; or If the DCI in which the TCI status indication information is located is an M-DCI, updating the target status of a second component carrier or band portion corresponding to the M-DCI, where the second component carrier or band portion is a component carrier or band portion of an M-DCI mode in the CC list.

[0210] Optionally, the operation comprises: determining a DCI signaling type of the DCI in which the TCI status indication information is located based on a first predetermined correspondence relationship and a resource set in which the TCI status indication information is located; and / or Further comprising: determining a TRP corresponding to the TCI status indication information based on a second predetermined correspondence relationship and a resource set in which the TCI status indication information is located; The first correspondence relationship is a correspondence relationship between the resource set and the DCI signaling type, and the second correspondence relationship is a correspondence relationship between the resource set and the TRP.

[0211] Optionally, the TCI status indication information is for indicating a TCI status or a TCI status group, and optionally, the TCI status indication information comprises a TCI single status indication or a TCI status group indication, the TCI single state indication information is for indicating one TCI state, The TCI status group indication information includes upstream TCI status indication information and downstream TCI status indication information.

[0212] In addition, according to the above terminal according to the embodiment of the present disclosure, all the method steps realized by the embodiment of the above transmission setting indicator TCI status indication method applied to the terminal can be realized and the same technical effects can be achieved, and here, details of the parts and beneficial effects that are the same as those of the method embodiment in this embodiment will be omitted.

[0213] FIG. 6 is a schematic diagram of the structure of a base station according to an embodiment of the present disclosure. As shown in FIG. 6, the base station includes a memory 620, a transceiver 600, and a processor 610, where the processor 610 and the memory 620 may be physically separated.

[0214] The memory 620 is used to store computer programs, and the transceiver 600 is used to transmit and receive data under the control of the processor 610 .

[0215] Specifically, the transceiver 600 is used to receive and transmit data under the control of a processor 610 .

[0216] 6, bus interface 630 may include any number of interconnected buses and bridges, specifically connecting together various circuits, such as one or more processors, represented by processor 610, and memory, represented by memory 620. Bus interface 630 may also connect together various other circuits, such as peripheral devices, voltage regulators, and power management circuits, all of which are well known in the art and will not be further described herein. The bus interface provides an interface. Transceiver 600 may be multiple elements, i.e., includes a transmitter and a receiver, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical cables, and the like.

[0217] The processor 610 manages the bus architecture and general processing, and the memory 620 may store data used by the processor 610 in performing operations.

[0218] Optionally, the processor 610 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD), and the processor may employ a multi-core architecture.

[0219] The processor 610 is used to call a computer program stored in the memory 620 and perform operations corresponding to the data transmission method applied to the base station according to any of the embodiments of the present disclosure according to the obtained executable instructions, for example, the operations include: sending a transmission configuration indicator (TCI) status indication information to a terminal, the TCI status indication information being for instructing the terminal to update a target status of a component carrier or a band part in a component carrier CC list; The CC list is preset by the base station for the terminal, and the CC list corresponds to a plurality of TCI states or a plurality of TCI state groups, and the target state of the component carrier or band portion includes a TCI state of the component carrier, a TCI state group of the component carrier, a TCI state of the band portion, or a TCI state group of the band portion.

[0220] Optionally, the CC list may include: CC list set individually for each TRP, A CC list configured based on the TRP transmission type corresponding to the component carrier or band portion; a CC list configured based on the DCI mode, or a combination thereof.

[0221] Optionally, the TCI status indication information is for updating the target status of the component carrier or band portion corresponding to the TRP corresponding to the TCI status indication information.

[0222] Optionally, the component carriers or band portions in the CC list are: Single downlink control information S-DC mode component carrier or band portion, and / or Including component carriers or band portions of multi-downlink control information M-DCI mode, If the DCI in which the TCI status indication information is located is an S-DCI, the TCI status indication information is for updating a target state of a first component carrier or band portion corresponding to the S-DCI, and the first component carrier or band portion is a component carrier or band portion of an S-DCI mode in the CC list; or If the DCI in which the TCI status indication information is located is an M-DCI, the TCI status indication information is for updating the target state of a second component carrier or band portion corresponding to the M-DCI, and the second component carrier or band portion is a component carrier or band portion of an M-DCI mode in the CC list.

[0223] Optionally, the operation comprises: further comprising setting a first correspondence relationship and / or a second correspondence relationship in the terminal; The first correspondence relationship is a correspondence relationship between a resource set and a DCI signaling type, and the first correspondence relationship is for determining the DCI signaling type of the DCI in which the TCI status indication information is located. The second correspondence relationship is a correspondence relationship between the resource set and a TRP, and the second correspondence relationship is for determining the TRP corresponding to the TCI status indication information.

[0224] Optionally, the TCI status indication information is for indicating a TCI status or a TCI status group, and optionally, the TCI status indication information comprises a TCI single status indication or a TCI status group indication, the TCI single state indication information is for indicating one TCI state, The TCI status group indication information includes upstream TCI status indication information and downstream TCI status indication information.

[0225] In addition, according to the above base station according to the embodiment of the present disclosure, all the method steps realized by the embodiment of the above transmission setting indicator (TCI) status indication method applied to the base station can be realized and the same technical effects can be achieved, and details of the parts and beneficial effects that are the same as those of the method embodiment in this embodiment will be omitted here.

[0226] In the embodiments of the present disclosure, the division into units is merely a schematic and logical functional division, and other division methods may be used in actual implementation. In addition, in each embodiment of the present disclosure, each functional unit may be integrated into a single processing unit, each unit may exist physically independently, or two or more units may be integrated into a single unit. The integrated units may be implemented in the form of hardware or software functional units.

[0227] The above-mentioned integrated units can be realized in the form of software functional units and stored in a processor-readable storage medium when sold or used as an independent product. Based on this understanding, the technical solution of the present disclosure, its essence, or a portion contributing to related technology, or all or part of the technical solution, may be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions that cause a computer device (which may be a personal computer, a server, a network device, etc.) or a processor to execute all or part of the steps of the method described in each embodiment of the present disclosure. The storage medium includes various media capable of storing program code, such as a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0228] On the other hand, an embodiment of the present disclosure further provides a processor-readable storage medium storing a computer program that causes a processor to execute a transmission configuration indicator (TCI) state indication method applied to a terminal according to each of the above embodiments, the method comprising: receiving a transmission configuration indicator (TCI) status indication information sent from a base station; updating a target state of a component carrier or a band portion in a component carrier CC list based on the TCI state indication information; The CC list is pre-configured by the base station for the terminal, the CC list corresponds to multiple TCI states or multiple TCI state groups, there is one or more CC lists, and the target state of the component carrier or band portion includes a TCI state of the component carrier, a TCI state group of the component carrier, a TCI state of the band portion, or a TCI state group of the band portion.

[0229] On the other hand, an embodiment of the present disclosure further provides a processor-readable storage medium storing a computer program that causes a processor to execute a transmission configuration indicator (TCI) state indication method applied to a base station according to each of the above embodiments, the method including: sending a transmission configuration indicator (TCI) status indication information to a terminal, the TCI status indication information being for instructing the terminal to update a target status of a component carrier or a band part in a component carrier CC list; The CC list is preset by the base station for the terminal, and the CC list corresponds to a plurality of TCI states or a plurality of TCI state groups, and the target state of the component carrier or band portion includes a TCI state of the component carrier, a TCI state group of the component carrier, a TCI state of the band portion, or a TCI state group of the band portion.

[0230] The processor-readable storage medium may be any available medium or data storage device that can be accessed by a processor, including, but not limited to, magnetic memory (e.g., flexible disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical memory (e.g., CDs, DVDs, BDs, HVDs, etc.), semiconductor memory (e.g., ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drives (SSD)), etc.

[0231] As will be appreciated by those skilled in the art, embodiments of the present disclosure may be provided as a method, a system, or a computer program product. Thus, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. The present disclosure may also take the form of a computer program product embodied in one or more computer-usable storage media (including, but not limited to, magnetic disk memory, optical memory, etc.) containing computer-usable program code.

[0232] The present disclosure will be described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present disclosure. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and combinations of flows and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, where the instructions, executed by the processor of the computer or other programmable data processing device, generate an apparatus for implementing the function(s) specified in one or more flows in the flowcharts and / or one or more blocks in the block diagrams.

[0233] These processor-executable instructions may be stored in a processor-readable memory that causes a computer or other programmable data processing device to operate in a particular manner to produce an article of manufacture that includes instruction means, the instructions stored in the processor-readable memory implementing the functions specified in one or more flows in the flowcharts and / or one or more blocks in the block diagrams.

[0234] These processor-executable instructions may be loaded into a computer or other programmable data processing device and cause the computer or other programmable device to perform a series of operational steps to generate a computer-implemented process, whereby the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more flows in the flowcharts and / or one or more blocks in the block diagrams.

[0235] Of course, those skilled in the art can make various changes and modifications to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, if these changes and modifications of the present disclosure fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure also intends to include these changes and modifications.

Claims

1. A transmission configuration indicator (TCI) status indication method applied to a terminal, comprising: receiving a transmission configuration indicator (TCI) status indication information sent from a base station; updating a target state of a component carrier or a band portion in a component carrier CC list based on the TCI state indication information; the CC list is preset by the base station for the terminal, the CC list corresponds to a plurality of TCI states or a plurality of TCI state groups, the CC list is one or more, and the target state of the component carrier or band portion includes a TCI state of a component carrier, a TCI state group of a component carrier, a TCI state of a band portion, or a TCI state group of a band portion.

2. The CC list is CC list set individually for each TRP, A CC list configured based on the TRP transmission type corresponding to the component carrier or band portion; or 2. The transmission configuration indicator (TCI) status indication method according to claim 1, wherein the transmission configuration indicator (TCI) status indication method includes any of the following types or combinations: a CC list configured based on a DCI mode;

3. The above-mentioned updating of the target state of the component carrier or the band part in the component carrier CC list based on the TCI state indication information includes: The transmission configuration indicator TCI status indication method according to claim 1, further comprising: updating a target state of a component carrier or a band portion corresponding to a TRP corresponding to the TCI status indication information based on the TCI status indication information.

4. The component carrier or band portion in the CC list is Component carrier or band portion of single downlink control information S-DC mode, and / or Including component carriers or band portions of multi-downlink control information M-DCI mode, The above-mentioned updating of the target state of the component carrier or the band part in the component carrier CC list based on the TCI state indication information includes: If the DCI in which the TCI status indication information is located is an S-DCI, updating a target state of a first component carrier or band portion corresponding to the S-DCI, where the first component carrier or band portion is a component carrier or band portion of an S-DCI mode in the CC list; or The transmission setting indicator TCI state indication method according to any one of claims 1 to 3, comprising: when the DCI in which the TCI state indication information is located is an M-DCI, updating a target state of a second component carrier or band portion corresponding to the M-DCI, wherein the second component carrier or band portion is a component carrier or band portion of an M-DCI mode in the CC list.

5. determining a DCI signaling type of the DCI in which the TCI status indication information is located based on a first predetermined correspondence relationship and a resource set in which the TCI status indication information is located; and / or Further comprising: determining a TRP corresponding to the TCI status indication information based on a second predetermined correspondence relationship and a resource set in which the TCI status indication information is located; The transmission configuration indicator (TCI) status indication method according to claim 4, wherein the first correspondence is a correspondence between the resource set and the DCI signaling type, and the second correspondence is a correspondence between the resource set and a TRP.

6. The transmission configuration indicator (TCI) status indicating method according to any one of claims 1 to 3, wherein the TCI status indication information is for indicating a TCI status or a TCI status group.

7. A transmission configuration indicator (TCI) status indication method applied to a base station, comprising: sending a transmission configuration indicator (TCI) status indication information to a terminal, the TCI status indication information being for instructing the terminal to update a target status of a component carrier or a band portion in a component carrier CC list; the CC list is preset by the base station for the terminal, the CC list corresponds to a plurality of TCI states or a plurality of TCI state groups, and the target state of the component carrier or band portion includes a TCI state of a component carrier, a TCI state group of a component carrier, a TCI state of a band portion, or a TCI state group of a band portion.

8. The CC list is CC list set individually for each TRP, A CC list configured based on the TRP transmission type corresponding to the component carrier or band portion; 8. The transmission configuration indicator (TCI) status indication method according to claim 7, wherein the transmission configuration indicator (TCI) status indication method includes any of the following types or combinations: a CC list configured based on a DCI mode;

9. The transmission setting indicator TCI status indication method according to claim 7, wherein the TCI status indication information is for updating a target status of a component carrier or a band portion corresponding to a TRP corresponding to the TCI status indication information.

10. The component carrier or band portion in the CC list is Component carrier or band portion of single downlink control information S-DC mode, and / or Including component carriers or band portions of multi-downlink control information M-DCI mode, If the DCI in which the TCI status indication information is located is an S-DCI, the TCI status indication information is for updating a target state of a first component carrier or band portion corresponding to the S-DCI, and the first component carrier or band portion is a component carrier or band portion of an S-DCI mode in the CC list; or The transmission setting indicator TCI state indication method according to any one of claims 7 to 9, wherein, when the DCI in which the TCI state indication information is located is an M-DCI, the TCI state indication information is for updating a target state of a second component carrier or band portion corresponding to the M-DCI, and the second component carrier or band portion is a component carrier or band portion of an M-DCI mode in the CC list.

11. further comprising setting a first correspondence relationship and / or a second correspondence relationship in the terminal; 11. The transmission setting indicator TCI status indication method according to claim 10, wherein the first correspondence is a correspondence between a resource set and a DCI signaling type, and the first correspondence is for determining a DCI signaling type of a DCI in which the TCI status indication information exists; and the second correspondence is a correspondence between a resource set and a TRP, and the second correspondence is for determining a TRP corresponding to the TCI status indication information.

12. The transmission configuration indicator TCI status indicating method according to any one of claims 7 to 9, wherein the TCI status indication information is for indicating a TCI status or a TCI status group.

13. 1. A terminal including a memory, a transceiver, and a processor, the memory is for storing a computer program, the transceiver is for transmitting and receiving data under the control of the processor, the processor reads the computer program in the memory; receiving a transmission configuration indicator (TCI) status indication information sent from a base station; and performing an operation including updating a target state of a component carrier or a band portion in a component carrier CC list based on the TCI status indication information; the CC list is preset by the base station for the terminal, the CC list corresponds to a plurality of TCI states or a plurality of TCI state groups, the CC list is one or more, and the target state of the component carrier or band portion includes a TCI state of a component carrier, a TCI state group of a component carrier, a TCI state of a band portion, or a TCI state group of a band portion.

14. The CC list is CC list set individually for each TRP, A CC list configured based on the TRP transmission type corresponding to the component carrier or band portion; or A CC list configured based on a DCI mode, or a combination thereof.

15. The above-mentioned updating of the target state of the component carrier or the band part in the component carrier CC list based on the TCI state indication information includes: The terminal according to claim 13, further comprising updating a target state of a component carrier or a band portion corresponding to a TRP corresponding to the TCI status indication information based on the TCI status indication information.

16. The component carrier or band portion in the CC list is Component carrier or band portion of single downlink control information S-DC mode, and / or Including component carriers or band portions of multi-downlink control information M-DCI mode, The above-mentioned updating of the target state of the component carrier or the band part in the component carrier CC list based on the TCI state indication information includes: If the DCI in which the TCI status indication information is located is an S-DCI, updating a target state of a first component carrier or band portion corresponding to the S-DCI, where the first component carrier or band portion is a component carrier or band portion of an S-DCI mode in the CC list; or The terminal according to any one of claims 13 to 15, further comprising: when the DCI in which the TCI status indication information is located is an M-DCI, updating a target state of a second component carrier or band portion corresponding to the M-DCI, wherein the second component carrier or band portion is a component carrier or band portion of an M-DCI mode in the CC list.

17. The operation is determining a DCI signaling type of the DCI in which the TCI status indication information is located based on a first predetermined correspondence relationship and a resource set in which the TCI status indication information is located; and / or Further comprising: determining a TRP corresponding to the TCI status indication information based on a second predetermined correspondence relationship and a resource set in which the TCI status indication information is located; The terminal according to claim 16, wherein the first correspondence is a correspondence between the resource set and the DCI signaling type, and the second correspondence is a correspondence between the resource set and a TRP.

18. The terminal according to any one of claims 13 to 15, wherein the TCI status indication information is for indicating a TCI status or a TCI status group.

19. 1. A base station including a memory, a transceiver, and a processor, the memory is for storing a computer program, the transceiver is for transmitting and receiving data under the control of the processor, the processor reads the computer program in the memory; sending a transmission configuration indicator (TCI) status indication information to a terminal, the TCI status indication information being for instructing the terminal to update a target status of a component carrier or a band portion in a component carrier CC list; the CC list is preset by the base station for the terminal, the CC list corresponds to a plurality of TCI states or a plurality of TCI state groups, and the target state of the component carrier or band portion includes a TCI state of a component carrier, a TCI state group of a component carrier, a TCI state of a band portion, or a TCI state group of a band portion.

20. The CC list is CC list set individually for each TRP, A CC list configured based on the TRP transmission type corresponding to the component carrier or band portion; 20. The base station of claim 19, wherein the CC list is configured based on a DCI mode.

21. The base station according to claim 19, wherein the TCI status indication information is for updating a target state of a component carrier or a band portion to which a TRP corresponding to the TCI status indication information corresponds.

22. The component carrier or band portion in the CC list is Component carrier or band portion of single downlink control information S-DC mode, and / or Including component carriers or band portions of multi-downlink control information M-DCI mode, If the DCI in which the TCI status indication information is located is an S-DCI, the TCI status indication information is for updating a target state of a first component carrier or band portion corresponding to the S-DCI, and the first component carrier or band portion is a component carrier or band portion of an S-DCI mode in the CC list; or A base station according to any one of claims 19 to 21, wherein, when the DCI in which the TCI status indication information is located is an M-DCI, the TCI status indication information is for updating a target state of a second component carrier or band portion corresponding to the M-DCI, and the second component carrier or band portion is a component carrier or band portion of an M-DCI mode in the CC list.

23. The operation is further comprising setting a first correspondence relationship and / or a second correspondence relationship in the terminal; 23. The base station of claim 22, wherein the first correspondence is a correspondence between a resource set and a DCI signaling type, and the first correspondence is for determining a DCI signaling type of a DCI in which the TCI status indication information is located, and the second correspondence is a correspondence between the resource set and a TRP, and the second correspondence is for determining a TRP corresponding to the TCI status indication information.

24. The base station according to any one of claims 19 to 21, wherein the TCI state indication information is for indicating a TCI state or a TCI state group.

25. A transmission configuration indicator (TCI) status indicating device applied to a terminal, comprising: a first receiving unit for receiving transmission configuration indicator (TCI) status indication information sent from a base station; a first updating unit for updating a target state of a component carrier or a band portion in a component carrier CC list based on the TCI status indication information; a transmission configuration indicator (TCI) state indication device, wherein the CC list is preset by the base station for the terminal, the CC list corresponds to a plurality of TCI states or a plurality of TCI state groups, the CC list is one or more, and the target state of the component carrier or band portion includes a TCI state of a component carrier, a TCI state group of a component carrier, a TCI state of a band portion, or a TCI state group of a band portion.

26. The CC list is CC list set individually for each TRP, A CC list configured based on the TRP transmission type corresponding to the component carrier or band portion; or 26. The transmission configuration indicator TCI status indicating device of claim 25, wherein the transmission configuration indicator TCI status indicating device includes any of the following types or combinations: a CC list configured based on a DCI mode;

27. The above-mentioned updating of the target state of the component carrier or the band part in the component carrier CC list based on the TCI state indication information includes: The transmission setting indicator TCI status indication device according to claim 25, further comprising: updating a target state of a component carrier or a band portion corresponding to a TRP corresponding to the TCI status indication information based on the TCI status indication information.

28. The component carrier or band portion in the CC list is Component carrier or band portion of single downlink control information S-DC mode, and / or Including component carriers or band portions of multi-downlink control information M-DCI mode, The above-mentioned updating of the target state of the component carrier or the band part in the component carrier CC list based on the TCI state indication information includes: If the DCI in which the TCI status indication information is located is an S-DCI, updating a target state of a first component carrier or band portion corresponding to the S-DCI, where the first component carrier or band portion is a component carrier or band portion of an S-DCI mode in the CC list; or The transmission setting indicator TCI status indication device according to any one of claims 25 to 27, comprising: when the DCI in which the TCI status indication information is located is an M-DCI, updating a target state of a second component carrier or band portion corresponding to the M-DCI, wherein the second component carrier or band portion is a component carrier or band portion of an M-DCI mode in the CC list.

29. The apparatus further includes a first determining unit, the first determining unit comprising: determining a DCI signaling type of the DCI in which the TCI status indication information is located based on a first predetermined correspondence relationship and a resource set in which the TCI status indication information is located; and / or The predetermined second correspondence relationship is used to determine a TRP corresponding to the TCI status indication information according to the resource set in which the TCI status indication information is located; 29. The transmission configuration indicator (TCI) status indication device according to claim 28, wherein the first correspondence is a correspondence between the resource set and the DCI signaling type, and the second correspondence is a correspondence between the resource set and a TRP.

30. The transmission configuration indicator TCI status indicating device according to any one of claims 25 to 27, wherein said TCI status indication information is for indicating a TCI status or a TCI status group.

31. A transmission configuration indicator (TCI) status indicating device applied to a base station, comprising: a second transmitting unit for transmitting transmission configuration indicator (TCI) status indication information to a terminal, the TCI status indication information being for instructing the terminal to update a target status of a component carrier or a band portion in a component carrier CC list; a transmission configuration indicator (TCI) state indication device, wherein the CC list is preset by the base station for the terminal, the CC list corresponds to a plurality of TCI states or a plurality of TCI state groups, and the target state of the component carrier or band portion includes a TCI state of a component carrier, a TCI state group of a component carrier, a TCI state of a band portion, or a TCI state group of a band portion.

32. The CC list is CC list set individually for each TRP, A CC list configured based on the TRP transmission type corresponding to the component carrier or band portion; 32. The transmission configuration indicator (TCI) status indicating device of claim 31, wherein the transmission configuration indicator (TCI) status indicating device includes any of the following types or combinations: a CC list configured based on a DCI mode;

33. The transmission setting indicator TCI status indication device according to claim 31, wherein the TCI status indication information is for updating a target status of a component carrier or a band portion corresponding to a TRP corresponding to the TCI status indication information.

34. The component carrier or band portion in the CC list is Component carrier or band portion of single downlink control information S-DC mode, and / or Including component carriers or band portions of multi-downlink control information M-DCI mode, If the DCI in which the TCI status indication information is located is an S-DCI, the TCI status indication information is for updating a target state of a first component carrier or band portion corresponding to the S-DCI, and the first component carrier or band portion is a component carrier or band portion of an S-DCI mode in the CC list; or 34. The transmission setting indicator TCI status indication device according to claim 31, wherein, when the DCI in which the TCI status indication information is located is an M-DCI, the TCI status indication information is for updating a target state of a second component carrier or band portion corresponding to the M-DCI, and the second component carrier or band portion is a component carrier or band portion of an M-DCI mode in the CC list.

35. the apparatus further includes a third sending unit for setting the first correspondence relationship and / or the second correspondence relationship in the terminal; The transmission setting indicator TCI status indication device of claim 34, wherein the first correspondence is a correspondence relationship between a resource set and a DCI signaling type, and the first correspondence is for determining a DCI signaling type of a DCI in which the TCI status indication information exists, and the second correspondence is a correspondence relationship between a resource set and a TRP, and the second correspondence is for determining a TRP corresponding to the TCI status indication information.

36. The transmission configuration indicator TCI status indicating device according to any one of claims 31 to 33, wherein said TCI status indication information is for indicating a TCI status or a TCI status group.

37. A processor-readable storage medium having stored thereon a computer program for causing a processor to execute the transmission configuration indicator (TCI) status indication method according to any one of claims 1 to 6.

38. A processor-readable storage medium storing a computer program for causing a processor to execute the transmission configuration indicator (TCI) status indication method according to any one of claims 7 to 12.

Images