Reference signal transmission method and device

Abstract

The embodiment of the present application discloses a reference signal transmission method and device, which belongs to the field of communication technology. The reference signal transmission method of the embodiment of the present application includes: a terminal receives a first indication information; determines at least one of the following according to the first indication information: activates or deactivates at least one target reference signal resource; activates or deactivates at least one target TCI state, and the target TCI state is related to the target reference signal resource; wherein the target reference signal resource is used for at least one of the following processes of at least one target service cell: activation of the target service cell, activation of at least one first TCI state, CSI acquisition, acquisition of uplink channel information, CSI measurement, beam measurement, beam failure detection, RLM measurement, RRM measurement, cell search, time-frequency tracking, acquisition timing, AGC, and rate matching.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and specifically relates to a reference signal transmission method and device. Background Art

[0002] When a terminal receives a secondary cell (SCell) activation command, it is usually necessary to perform automatic gain control and time-frequency synchronization on the SCell's downlink channel based on the tracking reference signal sent by the network-side device during the SCell activation process. The tracking reference signal is sent periodically by the network-side device, which will result in a large SCell activation delay or excessive signaling overhead. For example, if the tracking reference signal period is too long, the terminal may easily miss the tracking reference signal when receiving the SCell activation command, and will need to wait until the next tracking reference signal period, resulting in a large SCell activation delay. For another example, if the tracking reference signal transmission period is shortened, it may also result in a large signaling overhead.

[0003] To address this issue, the introduction of new reference signal resources is being discussed. For example, temporary reference signal resources can be used during SCell activation to perform automatic gain control and time-frequency synchronization, thereby accelerating SCell activation. However, how to transmit these new reference signal resources remains an unresolved technical issue. Summary of the Invention

[0004] The embodiments of the present application provide a reference signal transmission method and device, which can solve the problem of how to implement the transmission of reference signal resources.

[0005] In a first aspect, a method for transmitting a reference signal is provided, including: a terminal receives first indication information; determining at least one of the following based on the first indication information: activating or deactivating at least one target reference signal resource; activating or deactivating at least one target TCI state, the target TCI state being related to the target reference signal resource; wherein the target reference signal resource is used for at least one of the following processes of at least one target service cell: activation of the target service cell, activation of at least one first TCI state, CSI acquisition, acquisition of uplink channel information, CSI measurement, beam measurement, beam failure detection, RLM measurement, RRM measurement, cell search, time-frequency tracking, acquisition of timing, AGC, and rate matching.

[0006] On the second aspect, a method for transmitting a reference signal is provided, including: a network side device sends a first indication information, and the first indication information is used by the terminal to determine at least one of the following: activation or deactivation of at least one target reference signal resource; activation or deactivation of at least one target TCI state, and the target TCI state is related to the target reference signal resource; wherein the target reference signal resource is used for at least one of the following processes of at least one target service cell: activation of the target service cell, activation of at least one first TCI state, CSI acquisition, acquisition of uplink channel information, CSI measurement, beam measurement, beam failure detection, RLM measurement, RRM measurement, cell search, time-frequency tracking, acquisition of timing, AGC, and rate matching.

[0007] According to a third aspect, a reference signal transmission device is provided, comprising: a receiving module for receiving first indication information; a determining module for determining at least one of the following based on the first indication information: activating or deactivating at least one target reference signal resource; activating or deactivating at least one target TCI state, wherein the target TCI state is related to the target reference signal resource; wherein the target reference signal resource is used for at least one of the following processes of at least one target service cell: activation of the target service cell, activation of at least one first TCI state, CSI acquisition, acquisition of uplink channel information, CSI measurement, beam measurement, beam failure detection, RLM measurement, RRM measurement, cell search, time-frequency tracking, acquisition of timing, AGC, and rate matching.

[0008] In a fourth aspect, a reference signal transmission device is provided, including: a sending module for sending a first indication information, wherein the first indication information is used by a terminal to determine at least one of the following: activation or deactivation of at least one target reference signal resource; activation or deactivation of at least one target TCI state, wherein the target TCI state is related to the target reference signal resource; wherein the target reference signal resource is used for at least one of the following processes of at least one target service cell: activation of the target service cell, activation of at least one first TCI state, CSI acquisition, acquisition of uplink channel information, CSI measurement, beam measurement, beam failure detection, RLM measurement, RRM measurement, cell search, time-frequency tracking, acquisition of timing, AGC, and rate matching.

[0009] In a fifth aspect, a terminal is provided, which includes a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the method described in the first aspect.

[0010] In the sixth aspect, a terminal is provided, comprising a processor and a communication interface, wherein the processor is used to determine at least one of the following based on the first indication information: activate or deactivate at least one target reference signal resource; activate or deactivate at least one target TCI state, the target TCI state being related to the target reference signal resource; wherein the target reference signal resource is used for at least one of the following processes of at least one target service cell: activation of the target service cell, activation of at least one first TCI state, CSI acquisition, acquisition of uplink channel information, CSI measurement, beam measurement, beam failure detection, RLM measurement, RRM measurement, cell search, time-frequency tracking, acquisition timing, AGC, and rate matching; and the communication interface is used to receive the first indication information.

[0011] In the seventh aspect, a network side device is provided, which includes a processor, a memory, and a program or instruction stored in the memory and runnable on the processor, and when the program or instruction is executed by the processor, the method described in the second aspect is implemented.

[0012] In the eighth aspect, a network side device is provided, including a processor and a communication interface, wherein the communication interface is used to send a first indication information, and the first indication information is used by the terminal to determine at least one of the following: activation or deactivation of at least one target reference signal resource; activation or deactivation of at least one target TCI state, and the target TCI state is related to the target reference signal resource; wherein the target reference signal resource is used for at least one of the following processes of at least one target service cell: activation of the target service cell, activation of at least one first TCI state, CSI acquisition, acquisition of uplink channel information, CSI measurement, beam measurement, beam failure detection, RLM measurement, RRM measurement, cell search, time-frequency tracking, acquisition of timing, AGC, and rate matching.

[0013] In a ninth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the method described in the first aspect or the method described in the second aspect is implemented.

[0014] In the tenth aspect, a chip is provided, which includes a processor and a communication interface, the communication interface and the processor are coupled, and the processor is used to run programs or instructions to implement the method as described in the first aspect, or to implement the method as described in the second aspect.

[0015] In the eleventh aspect, a computer program / program product is provided, which is stored in a non-volatile storage medium, and the program / program product is executed by at least one processor to implement the method as described in the first aspect, or to implement the method as described in the second aspect.

[0016] In an embodiment of the present application, the terminal determines at least one of the following based on the received first indication information: activate or deactivate at least one target reference signal resource; activate or deactivate at least one target TCI state related to the target reference signal resource; wherein the target reference signal resource can be used for at least one of the following processes of at least one target service cell: activation of the target service cell, activation of at least one first TCI state, CSI acquisition, acquisition of uplink channel information, CSI measurement, beam measurement, beam failure detection, RLM measurement, RRM measurement, cell search, time-frequency tracking, acquisition timing, AGC, rate matching. The embodiment of the present application is conducive to realizing the transmission / cancellation of the target reference signal resource, accelerating the activation of the target service cell, and improving the transmission efficiency or stability of the target service cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of a wireless communication system according to an embodiment of the present application;

[0018] Figure 2 is a schematic flowchart of a reference signal transmission method according to an embodiment of the present application;

[0019] Figure 3 1 is a schematic diagram of the MAC CE signaling format according to an embodiment of the present application;

[0020] Figure 4 1 is a schematic diagram of the MAC CE signaling format according to an embodiment of the present application;

[0021] Figure 5 1 is a schematic diagram of the MAC CE signaling format according to an embodiment of the present application;

[0022] Figure 6 1 is a schematic diagram of the MAC CE signaling format according to an embodiment of the present application;

[0023] Figure 7 1 is a schematic diagram of the MAC CE signaling format according to an embodiment of the present application;

[0024] Figure 8 1 is a schematic diagram of the MAC CE signaling format according to an embodiment of the present application;

[0025] Figure 9 1 is a schematic diagram of the MAC CE signaling format according to an embodiment of the present application;

[0026] Figure 10 1 is a schematic diagram of the MAC CE signaling format according to an embodiment of the present application;

[0027] Figure 11 1 is a schematic diagram of the MAC CE signaling format according to an embodiment of the present application;

[0028] Figure 12 1 is a schematic diagram of the MAC CE signaling format according to an embodiment of the present application;

[0029] Figure 13 is a schematic flowchart of a reference signal transmission method according to an embodiment of the present application;

[0030] Figure 14 is a structural diagram of a reference signal transmission device according to an embodiment of the present application;

[0031] Figure 15 is a structural diagram of a reference signal transmission device according to an embodiment of the present application;

[0032] Figure 16 is a structural diagram of a communication device according to an embodiment of the present application;

[0033] Figure 17 is a schematic structural diagram of a terminal according to an embodiment of the present application;

[0034] Figure 18 It is a structural diagram of the network side device according to an embodiment of the present application. DETAILED DESCRIPTION

[0035] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0036] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first" and "second" are generally of the same type, and do not limit the number of objects. For example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0037] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the technology described can be used for the systems and radio technologies mentioned above, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following descriptions. These technologies can also be applied to applications other than NR system applications, such as 6th generation (6G) systems. th Generation, 6G) communication system.

[0038] Figure 1A schematic diagram of a wireless communication system applicable to an embodiment of the present application is shown. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can also be referred to as a terminal device or a user terminal (UE). The terminal 11 can be a mobile phone, a tablet computer, a laptop computer or a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile Internet device (MID), a wearable device or a vehicle-mounted device (VUE), a pedestrian terminal (PUE) and other terminal-side devices. Wearable devices include: smart watches, bracelets, headphones, glasses, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 can be a base station or a core network, where the base station can be called a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a B node, an evolved B node (eNB), a next generation node B (gNB), a home B node, a home evolved B node, a WLAN access point, a WiFi node, a transmitting and receiving point (Transmitting Receiving Point, TRP) or other appropriate terms in the field. As long as the same technical effect is achieved, the base station is not limited to a specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

[0039] The reference signal transmission method and device provided in the embodiments of the present application are described in detail below with reference to the accompanying drawings through some embodiments and their application scenarios.

[0040] like Figure 2 As shown, an embodiment of the present application provides a reference signal transmission method 200, which can be executed by a terminal. In other words, the method can be executed by software or hardware installed in the terminal, and the method includes the following steps.

[0041] S202: The terminal receives first indication information.

[0042] In this embodiment, the first indication information may be carried in at least one of the following signaling: Radio Resource Control (RRC) signaling, Media Access Control-Control Element (MAC CE) signaling, and Downlink Control Information (DCI) signaling.

[0043] The first indication information may be used to activate or deactivate a target reference signal resource (or to trigger or not trigger reception of a target reference signal), and / or to activate or deactivate a target TCI state related to the target reference signal resource.

[0044] As an implementation method, the first indication information may clearly indicate whether to trigger or not to trigger the reception of the target reference signal (resource), or may indicate triggering the reception of the target reference signal when the terminal receives the first indication information, and not triggering the reception of the target reference signal when the first indication information is not received.

[0045] Of course, the first indication information may also have other uses, such as activating the target serving cell. In one example, the first indication information may also be target serving cell activation signaling, which may be used to activate the target serving cell and, at the same time, activate the target reference signal resources transmitted on the target serving cell, as well as the target TCI state associated with the target reference signal resources.

[0046] The target reference signal resource mentioned in various embodiments of this application is associated with a target TCI state. Specifically, this may mean that a terminal may receive or send the target reference signal resource using spatially relevant information indicated by the target TCI state. For example, the terminal may determine the beam used to receive the target reference signal resource based on the spatially relevant information indicated by the target TCI state.

[0047] The target reference signal resource may include at least one reference signal, or at least one reference signal in at least one reference signal set.

[0048] S204: Determine at least one of the following according to the first indication information: activate or deactivate at least one target reference signal resource; activate or deactivate at least one target transmission configuration indicator (TCI) state, where the target TCI state is related to the target reference signal resource.

[0049] The target reference signal resource is used for at least one of the following processes of at least one target service cell: activation of the target service cell, activation of at least one first TCI state, channel state information (CSI) acquisition, acquisition of uplink channel information, CSI measurement, beam measurement, beam failure detection, radio link monitoring (RLM) measurement, radio resource management (RRM) measurement, cell search, time-frequency tracking, acquisition timing, automatic gain control (AGC), and rate matching.

[0050] The target reference signal resource mentioned in each embodiment of the present application may be a temporary reference signal (TemproryRS, TRS), or a reference signal for fast secondary cell activation (RS for fast SCell activation), etc.

[0051] In addition, the target reference signal can be a type of reference signal, such as a reference signal for time-frequency synchronization, a channel state information reference signal (CSI-RS) for beam measurement, a CSI-RS for obtaining channel state information, or an RS for obtaining timing or a synchronization signal / physical broadcast channel signal block / synchronization signal block (SSB), a periodic RS, an aperiodic RS, or other RS. The target reference signal can also be a combination of multiple types of reference signals. For example, the target reference signal is a combination of CSI-RS, SSB, and TRS. In this way, the target reference signal can achieve target service cell search + target service cell activation in one step; for another example, the target reference signal is a combination of TRS and sounding reference signal (SRS). In this way, the target reference signal can achieve simultaneous activation of uplink and downlink transmission.

[0052] The first TCI state may include: the TCI state of the Physical Downlink Control Channel (PDCCH), the TCI state of the Physical Downlink Shared Channel (PDSCH), and the TCI state (or QCL information) of the semi-static CSI-RS resource set. When the network sends a command to activate the first TCI state, it may be necessary to receive a reference signal (such as an SSB) during the activation of the first TCI state. Configuring and activating the target reference signal on the network helps expedite the activation process of the first TCI state.

[0053] In this step, the terminal determines at least one of the following based on the first indication information: activation or deactivation of the target reference signal resource; activation or deactivation of the target TCI state. If the target reference signal resource is determined to be activated, after S204, the terminal may further send or receive the target reference signal resource. If both the target reference signal resource and the target TCI state are determined to be activated, after S204, the terminal may further send or receive the target reference signal resource using spatially related information (e.g., beam) indicated by the target TCI state.

[0054] In one example, before S204, at least one target service cell is in an inactivated state, and the target reference signal resources can be used to quickly activate the at least one target service cell. For example, the terminal can perform time-frequency tracking, obtain timing, AGC and other operations through the received target reference signal resources, thereby achieving rapid activation of the at least one target service cell.

[0055] In another example, before S204, at least one target service cell has been converted to an activated state (for example, an RRC message is received to configure the at least one service cell to an activated state or a MAC CE signaling is received to set the at least one service cell to an activated state), then the target reference signal resources can be used for time-frequency tracking, timing acquisition, AGC and other operations, thereby speeding up the activation completion or data transmission of the at least one service cell.

[0056] In another example, before S204, at least one target service cell is in an activated state, and the target reference signal resources can be used for CSI acquisition of the at least one target service cell, obtaining uplink channel information, CSI measurement, beam measurement, beam failure detection, RLM measurement, RRM measurement, etc., which is beneficial to improving the communication quality of the target service cell.

[0057] It should be noted that the term "target" in the target reference signal resources mentioned in various embodiments of this application is merely for the purpose of distinguishing them from other reference signal resources and does not represent a specific meaning. Similarly, the term "target" in the target TCI state and target serving cell is also for the purpose of distinguishing them from other TCI states and serving cells.

[0058] The TCI states mentioned in various embodiments of the present application, for example, the target TCI state, the first TCI state, etc., may include other spatial related information such as Quasi-Co-Location (QCL) information. In one embodiment, the network side device may first configure several target TCI states and / or several first TCI states, each TCI state may be identified by an identification ID, and the network side device may subsequently perform activation or deactivation operations on the configured target TCI state and / or first TCI state through the TCI state identification ID. In another embodiment, the network side device may directly indicate to the terminal the identification ID of a reference signal resource (also referred to as a reference source or QCL source) that has the same or similar spatial information assumption (such as the same beam) as the target reference signal resource. Optionally, in this case, the service cell and / or corresponding BWP where the reference source or QCL source is located is indicated. In this way, the terminal can know what downlink receiving beam to use to receive the target reference signal.

[0059] When the target reference signal resource is used to activate at least one target serving cell, the target serving cell may be a secondary cell, a primary cell, a primary-secondary cell, a primary cell group, a secondary cell group, a specific cell group, etc.

[0060] "Activating or deactivating at least one target reference signal resource" may include activating several target reference signals, deactivating several target reference signals, or activating some target reference signals and deactivating others. Activating or deactivating at least one target TCI state is similar and is not further described.

[0061] The reference signal transmission method provided in the embodiment of the present application is that the terminal determines at least one of the following based on the received first indication information: activate or deactivate at least one target reference signal resource; activate or deactivate at least one target TCI state related to the target reference signal resource; wherein the target reference signal resource can be used for at least one of the following processes of at least one target service cell: activation of the target service cell, activation of at least one first TCI state, CSI acquisition, acquisition of uplink channel information, CSI measurement, beam measurement, beam failure detection, RLM measurement, RRM measurement, cell search, time-frequency tracking, acquisition timing, AGC, rate matching. The embodiment of the present application is conducive to realizing the transmission / cancellation of the target reference signal resource, accelerating the activation of the target service cell, and improving the transmission efficiency or stability of the target service cell.

[0062] Optionally, the target reference signal resource, target TCI state, target serving cell, and first TCI state mentioned in various embodiments of the present application satisfy at least one of the following mapping relationships:

[0063] 1) One target reference signal resource corresponds to at least one target TCI state. For example, a terminal may simultaneously receive the target reference signal resource using multiple beams indicated by multiple target TCI states. The multiple beams may be from the same serving cell or different serving cells and may be associated with the same BWP or different BWPs.

[0064] 2) One target reference signal resource corresponds to at least one target serving cell. For example, the target reference signal resource can be used to accelerate the activation process of one or more serving cells. The target reference signal resource can be sent by the target serving cell or a serving cell other than the target serving cell.

[0065] 3) One target TCI state corresponds to at least one target reference signal resource. For example, the terminal can receive multiple target reference signal resources through a beam indicated by one target TCI state.

[0066] 4) One target TCI state corresponds to at least one target serving cell. For example, the target TCI state may be used to indicate spatial related information of at least one target serving cell.

[0067] 5) One target serving cell corresponds to at least one target reference signal resource. For example, activation of a target serving cell requires receiving several target reference signal resources.

[0068] 6) One target serving cell corresponds to at least one target TCI state. For example, the target serving cell may have multiple spatial related information.

[0069] 7) One target reference signal resource corresponds to at least one first TCI state.

[0070] For example, one target reference signal resource may be used for activation of multiple first TCI states.

[0071] 8) One of the first TCI states corresponds to at least one target reference signal resource. For example, activation of the first TCI state requires the terminal to receive multiple target reference signal resources.

[0072] Optionally, in embodiment 200, the terminal may determine to activate or deactivate at least one of the target reference signal resources according to the first indication information. The first indication information may be carried in RRC signaling, and the RRC signaling may be at least one of the following:

[0073] 1) Sending RRC signaling of configuration information corresponding to the target reference signal resource.

[0074] In one example, after configuring the target reference signal resource through RRC signaling, all or part of the target reference signal resource can be activated immediately, or the target reference signal resource can be activated when the configuration information corresponding to the target reference signal resource meets any one of the following conditions: the configuration information of the target reference signal resource carries activation indication information of the target reference signal resource; the configuration information of the target reference signal resource includes only one target reference signal resource; the configuration information of the target reference signal resource carries an identifier of an activated or deactivated target reference signal. It should be noted that the method introduced in one embodiment or one description in this specification can be applied to other embodiments and description parts of this specification. In order to simplify the description, similar operations will not be described in detail below.

[0075] Since the target reference signal resources are used for the following processes of the target service cell: activation of the target service cell, activation of at least one first TCI state, CSI acquisition, acquisition of uplink channel information, CSI measurement, beam measurement, beam failure detection, RLM measurement, RRM measurement, cell search, time-frequency tracking, acquisition timing, AGC, rate matching, the enabling or disabling of the configuration information related to these processes of the target service cell can also be used to determine the activation or deactivation of the target reference signal resources.

[0076] 2) Sending RRC signaling of activation or deactivation indication information corresponding to the target reference signal resource.

[0077] 3) RRC signaling for configuring at least one of the target serving cells corresponding to the target reference signal resource to be in an activated state or a deactivated state.

[0078] For example, if the RRC reconfiguration message is configured to be in the activated state when adding a secondary cell, the UE can immediately activate the target reference signal resources corresponding to the secondary cell after receiving the RRC reconfiguration message. Furthermore, the activation operation is performed only if the UE has configured target reference signal resources. For another example, if the RRC reconfiguration message is configured to be in the deactivated state when adding a secondary cell, the terminal does not activate the target reference signal resources corresponding to the secondary cell in the RRC reconfiguration message. In one embodiment, when the serving cell is deactivated by the terminal itself (for example, the SCell deactivation timer expires), its related target reference signal resources can be deactivated.

[0079] 4) configuring RRC signaling that at least one target TCI state corresponding to the target reference signal resource is activated or deactivated.

[0080] 5) RRC signaling for configuring at least one serving cell associated with the target reference signal resource to be in an activated state or a deactivated state.

[0081] Since the target reference signal resources may be located in the target serving cell or other serving cells outside the target serving cell, activation of these other serving cells may trigger activation of the target reference signal resources, and / or deactivation of these other serving cells may trigger deactivation of the target reference signal resources.

[0082] 6) configuring RRC signaling that the state of at least one first TCI corresponding to the target reference signal resource is an activated state or a deactivated state.

[0083] 7) Configuring RRC signaling of at least one serving cell associated with at least one of the first TCI states as an activated state or a deactivated state.

[0084] 8) Configuring RRC signaling of a bandwidth part (BandWidth Part, BWP) corresponding to the target reference signal resource as an activated state or a deactivated state.

[0085] It should be noted that the above 1) to 8) can be different RRC signalings, or at least two of the above 1) to 8) can also be the same RRC signaling. For example, the above 1) and 2) are the same RRC signaling, which not only carries the configuration information corresponding to the target reference signal resource, but also carries the activation indication information corresponding to the target reference signal resource.

[0086] Optionally, in embodiment 200, the terminal may determine to activate or deactivate at least one target TCI state based on the first indication information. The first indication information may be carried in RRC signaling, and the RRC signaling may be at least one of the following:

[0087] 1) Sending RRC signaling of configuration information corresponding to the target TCI state.

[0088] 2) Sending RRC signaling of activation or deactivation indication information corresponding to the target TCI state.

[0089] 3) RRC signaling configuring at least one of the target reference signal resources corresponding to the target TCI state to be in an activated state or a deactivated state.

[0090] 4) Configuring RRC signaling of at least one of the target serving cells corresponding to the target TCI state as an activated state or a deactivated state.

[0091] 5) Configuring RRC signaling of at least one serving cell associated with at least one of the target TCI states to be in an activated state or a deactivated state.

[0092] 6) Configure the BWP corresponding to the target TCI state to be activated or deactivated RRC signaling.

[0093] It should be noted that the above 1) to 6) can be different RRC signalings, or at least two of the above 1) to 6) can also be the same RRC signaling. For example, the above 1) and 2) are the same RRC signaling, which not only carries the configuration information corresponding to the target TCI state, but also carries the activation indication information corresponding to the target TCI state.

[0094] Optionally, the first indication information mentioned in embodiment 200 may be carried in a first MAC CE signaling, and the first MAC CE signaling may be at least one of the following:

[0095] 1) Activate or deactivate MAC CE signaling of at least one of the target serving cells.

[0096] 2) Activate or deactivate MAC CE signaling of at least one serving cell associated with at least one of the target reference signal resources.

[0097] 3) Activate or deactivate MAC CE signaling of at least one serving cell associated with at least one of the target TCI states.

[0098] 4) Activate or deactivate MAC CE signaling of at least one of the first TCI states.

[0099] 5) Activate or deactivate MAC CE signaling of at least one serving cell associated with at least one of the first TCI states.

[0100] It should be noted that the above 1) to 5) may be different MAC CE signalings, or at least two of the above 1) to 5) may be the same MAC CE signaling, wherein different MAC CEs are identified using different LCID fields or eLCID fields.

[0101] 1), 2), 3), and 5) can be secondary cell activation / deactivation MAC CEs, special cell activation / deactivation MAC CEs, or cell group activation / deactivation MAC CEs. 4) can be PDSCH TCI state activation / deactivation MAC CEs, PDCCH TCI state activation / deactivation MAC CEs, or semi-static CSI-RS resource set activation / deactivation MAC CEs. In one embodiment, a MAC CE for activating or deactivating a target TCI state can also be used to indicate activation or deactivation of a target reference signal.

[0102] Optionally, the first indication information mentioned in embodiment 200 may be carried in second MAC CE signaling, where the second MAC CE signaling includes at least one of the following fields:

[0103] 1) A first length field, which is used to indicate the length of the second MAC CE signaling, wherein the length can be the number of OCTETs or bytes of the second MAC CE.

[0104] 2) A target reference signal resource indication field, wherein the target reference signal resource indication field is used to indicate first relevant information of at least one target reference signal resource.

[0105] In various embodiments of the present application, the terms target reference signal resource and target reference signal resource set can be used interchangeably, and which term to use depends on the structure of the target reference signal resource configured on the network side.

[0106] In one embodiment, the target reference signal resource indication field may indicate at least one first relevant information of the target reference signal resource. In another embodiment, the second MAC CE may carry multiple target reference signal resource indication fields, wherein each target reference signal resource indication field is used to indicate one first relevant information of the target reference signal resource.

[0107] 3) A target TCI state indication field, where the target TCI state indication field is used to indicate at least one second related information of the target TCI state.

[0108] In one embodiment, the target TCI state indication field may indicate at least one second related information of the target TCI state. In another embodiment, the second MAC CE may carry multiple target TCI state indication fields, each of which is used to indicate one second related information of the target TCI state.

[0109] 4) At least one target serving cell identification ID field, where the target serving cell ID field is used to indicate the ID of the target serving cell.

[0110] Optionally, if the indicated serving cell belongs to a specific serving cell set, the MAC CE may be applied to some or all serving cells in the serving cell set. Optionally, the absence of the target serving cell identification ID field may indicate that the MAC CE applies to a specific serving cell (e.g., SpCell) or a specific serving cell group (e.g., MCG or SCG). Of course, the LCID or eLCID field of the second MAC CE may also be used as an alternative.

[0111] 5) A target serving cell bitmap field, wherein bits of a preset length in the target serving cell bitmap field are used to indicate third relevant information of the target serving cell corresponding to the bits.

[0112] The bitmap field may be in the form of a bitmap, and each bit or bit block is used to indicate the third relevant information of the corresponding target serving cell.

[0113] For example, the target serving cell bitmap field may be represented as the Ci field, which is used to indicate the third relevant information corresponding to the serving cell identified by ServCellIndex i.

[0114] In practical applications, the above 4) and 5) usually do not appear at the same time, and only one of them is sufficient.

[0115] 6) At least one BWP ID field, where the BWP ID field is used to indicate the uplink and / or downlink BWP corresponding to the target reference signal resource and / or the target TCI state.

[0116] Optionally, if the MAC CE is applied to a group of serving cells, the UE ignores the BWP ID field. Optionally, the absence of this field may implicitly indicate that the MAC CE is applied to a specific BWP, such as the first active UL / DL BWP or the currently active BWP (for example, if the terminal receives the MAC CE, the serving cell ID field corresponds to SCell1 and the BWP ID field does not appear, then if SCell1 is currently in a deactivated state, the UE activates SCell1 and the MAC CE is applied to the first active BWP of SCell1; for example, under the same conditions, if SCell1 is currently in an activated state with an active BWP, the UE applies the MAC CE to the BWP that is currently in an activated state of SCell1).

[0117] 7) A first TCI state ID field, where the first TCI state ID field is used to indicate at least one ID of the first TCI state.

[0118] 8) A first TCI state bitmap field, wherein bits of a preset length in the first TCI state bitmap field are used to indicate fourth related information of the first TCI state corresponding to the bits.

[0119] It should be noted that the above "field" can be understood as a number of bits, OCTETs, or bytes carrying indication information. A field can also be composed of several sub-fields, and each sub-field can also be composed of a number of bits or OCTETs carrying indication information.

[0120] In practical applications, the above 7) and 8) usually do not appear at the same time, and only one of them is required.

[0121] It should be noted that the above 1) to 8) can be different MAC CE signaling, or at least two of the above 1) to 8) can be the same MAC CE signaling. The above 1)-8) can be arbitrarily combined to form a second MAC CE instance, and each second MAC CE instance is identified by a new LCID or eLCID field. Different second MAC CE signaling is identified using different LCID or eLCID fields.

[0122] It should be noted that the above 2) can indicate one target reference signal resource and more than one target reference signal resource. Then when the MAC CE is used to indicate one target reference signal resource, the MAC CE can be identified using one LCID field. When the MAC CE is used to indicate more than one target reference signal resource, the MAC CE can be identified using another LCID field. In this way, when the UE receives the MAC CE, it can also determine the length of the MAC CE or the number of target reference signal resources contained therein based on the LCID field. It can be understood that the same method also applies to the above 3)-8). For example, the MAC CE used to indicate the target reference signal resource of a target service cell and the MAC CE used to indicate the target reference signal resource of more than one target service cell can be different and identified using different LCID fields or eLCID fields.

[0123] On the basis that the first indication information in the above embodiment is the second MAC CE signaling, the method of embodiment 200 further includes the following steps: the terminal determines at least one of the following according to the first indication information:

[0124] 1) Activate or deactivate at least one of the target serving cells.

[0125] 2) Activate or deactivate at least one of the first TCI states.

[0126] 3) Activate the BWP indicated by the BWP ID field.

[0127] It is understandable that when the terminal receives the second MAC CE and activates the target reference signal resources and / or target TCI state of the target serving cell according to the second MAC CE, the second MAC CE can simultaneously activate the target serving cell. Optionally, the second MAC CE carries the activation / deactivation indication field of the target serving cell. Or the second MAC CE can implicitly indicate the activation of its corresponding target serving cell when the target reference signal resources and / or target TCI state are activated. Optionally, when the target serving cell is deactivated, the target serving cell is activated. When the target serving cell is activated, the target serving cell is kept in an activated state.

[0128] When the terminal receives a second MAC CE and activates the target reference signal resources and / or target TCI state of the first TCI state according to the second MAC CE, the second MAC CE may simultaneously activate the first TCI state. Optionally, the second MAC CE carries an activation / deactivation indication field for the first TCI state. Alternatively, the second MAC CE may implicitly indicate activation of the corresponding first TCI state when activating the target reference signal resources and / or target TCI state. Optionally, when the first TCI state is deactivated, the first TCI state is activated. When the first TCI state is activated, the first TCI state is maintained in an activated state.

[0129] When the second MAC CE includes a BWP ID field, the field may be used to indicate a BWP related to a target reference signal resource and / or a target TCI state, and may also be used to instruct the terminal to switch to the BWP indicated by the BWP ID field.

[0130] Optionally, the target reference signal resource indication field mentioned in the above embodiment includes at least one of the following fields:

[0131] a) a second length field, where the second length field is used to indicate the length of the target reference signal resource indication field.

[0132] b) Target reference signal resource destination field, the target reference signal resource destination field is used to indicate the purpose or use of the activated or deactivated target reference signal resource.

[0133] In one embodiment, the target reference signal resource purpose field can be used to indicate the activation or deactivation of at least one type of target reference signal resource. For example, RRC configures corresponding target reference signal resources for AGC, time-frequency tracking, CSI-RS, and activation of the first TCI state. This field can use a 4-bit bitmap to indicate whether the target reference signal resources for the purpose of ACG, time-frequency tracking, CSI-RS, and activation of the first TCI state are activated.

[0134] c) at least one first activation state field, where the first activation state field is used to indicate activation or deactivation of at least one target reference signal resource.

[0135] The first activation status field may be used to indicate activation of all target reference signals indicated in the second MAC CE, or to indicate deactivation of all target reference signals indicated in the second MAC CE, or to indicate which target reference signals among the target reference signals indicated in the second MAC CE are to be activated and which are to be deactivated (for example, a first activation status field may be set for each target reference signal, or a first activation status field may be set for each target reference signal indicated in the second MAC CE, and the positions of these first activation status fields may be consistent with the positions of the indicated target reference signals in the MAC CE, or consistent with the ascending or descending order of the target reference signal IDs). For example, the first activation status field may carry one bit, and when the value is 1, it indicates activation of all target reference signals indicated in the second MAC CE, and when the value is 0, it indicates deactivation. In another example, when the first activation status field is not present, it may have a default meaning, for example, all target reference signals indicated in the second MAC CE are activated by default.

[0136] d) at least one target reference signal resource ID field, where the target reference signal resource ID field is used to indicate the ID of the target reference signal resource that is activated or deactivated, or to indicate the ID of the target reference signal resource corresponding to the target TCI state that is activated or deactivated.

[0137] For example, when the second MAC CE is received, if the target reference signal resource has not been triggered or activated, the MAC CE can be used to activate the target reference signal resource, and the field can be used to indicate the ID of the activated target reference signal resource. For another example, when the second MAC CE is received, if the target reference signal resource has been triggered or activated, the MAC CE can be used to deactivate the target reference signal resource, and the field can be used to indicate the ID of the deactivated target reference signal resource. For another example, when the second MAC CE is received, if the target reference signal resource has been triggered or activated, the MAC CE can be used to deactivate the target TCI state corresponding to the target reference signal resource, and the field can be used to indicate the ID of the target reference signal resource, which can be understood as indicating which target reference signal resource corresponding to the target TCI state is activated by the MAC CE.

[0138] e) a target reference signal resource bitmap field, wherein bits of a preset length in the target reference signal resource bitmap field are used to indicate fifth relevant information of at least one target reference signal resource corresponding to a corresponding bit.

[0139] When d) or e) does not appear, it may indicate that the MAC CE is applied to the target reference signal resource that is currently activated.

[0140] In practical applications, the above d) and e) usually do not appear at the same time, only one of them is required.

[0141] f) a repetition field, where the repetition field is used to indicate whether the number of transmissions of the activated target reference signal resource is greater than one.

[0142] g) a repetition transmission number field, where the repetition transmission number field is used to indicate the number of transmissions of the activated target reference signal resource.

[0143] h) a target reference signal resource time domain offset field, where the target reference signal resource time domain offset field is used to indicate a time domain offset associated with the activated first reference signal.

[0144] The target reference signal resource time domain offset field may include:

[0145] First time domain offset: indicates the time domain offset between the first time domain position and the time domain position for sending the target reference signal resource. The first time domain position can be the time unit containing the target reference signal resource activation command, or the time unit for the UE to send the corresponding uplink feedback.

[0146] Second time domain offset: indicates the time domain offset within the time unit of the target reference signal resource transmission. For example, within the slot of the target reference signal resource transmission, the time domain offset between the symbol of the (first) transmission of the target reference signal resource and the first symbol;

[0147] Optionally, f)-h) may be indicated for multiple target reference signal resources, or may be indicated for each target reference signal resource separately.

[0148] i) Target reference signal resource quantity field, where the target reference signal resource quantity field is used to indicate the quantity of the activated or deactivated target reference signal resources.

[0149] Optionally, the target TCI status indication field mentioned in the above embodiment includes at least one of the following fields:

[0150] a) A third length field, where the third length field is used to indicate the length of the target TCI status indication field.

[0151] b) a second activation state field, where the second activation state field is used to indicate activation or deactivation of at least one of the target TCI states.

[0152] The second activation state field may be used to indicate activation of all target TCI states indicated in the second MAC CE, or to indicate deactivation of all target TCI states indicated in the second MAC CE, or to indicate which target TCI states in the target TCI states indicated in the second MAC CE are to be activated and which are to be deactivated (for example, a second activation state field may be set for each target TCI state, or a second activation state field may be set for each target TCI state indicated in the second MAC CE. The positions of these second activation state fields may be consistent with the positions of the indicated target TCI states in the second MAC CE, or consistent with the ascending or descending order of the target TCI state IDs). For example, the second activation state field may carry one bit. When the value is 1, it indicates activation of all target TCI states indicated in the second MAC CE, and when the value is 0, it indicates deactivation. In another example, when the second activation state field is absent, it may have a default meaning, such as activation of all target TCI states indicated in the second MAC CE by default.

[0153] c) Target TCI state ID field, the target TCI state ID field is used to indicate the ID of the target TCI state to be activated or deactivated.

[0154] d) Target TCI state bitmap field, wherein bits of a preset length in the target TCI state bitmap field are used to indicate a target state of the target TCI state corresponding to the bits, wherein the target state includes an activated state or a deactivated state.

[0155] In practical applications, the above c) and d) usually do not appear at the same time, only one of them is required.

[0156] e) Second TCI status ID i,j Field, the second TCI status ID i,j The field is used to indicate the ID of the jth target TCI state of the i-th code point in the downlink control information DCI transmission configuration indication field that is activated or deactivated.

[0157] f) A first resource ID field, where the first resource ID field is used to indicate a resource ID of a first resource, where the first resource is used to provide a quasi-co-located QCL source of the target reference signal resource.

[0158] g) A first resource serving small area, where the first resource serving small area is used to indicate a serving cell where the first resource is located.

[0159] h) a first resource BWP ID field, where the first resource BWP ID field is used to indicate the BWP corresponding to the first resource or the serving cell where the first resource is located.

[0160] i) a non-periodic trigger state bitmap field, wherein bits of a preset length in the non-periodic trigger state bitmap field are used to indicate a selection state of the non-periodic trigger state corresponding to the bit.

[0161] Optionally, the third relevant information mentioned in the above embodiment includes at least one of the following:

[0162] a) A target state of the target serving cell, where the target state includes an activated state or a deactivated state.

[0163] b) Whether the target reference signal resource indication field corresponding to the target serving cell appears.

[0164] c) Whether the target TCI status indication field corresponding to the target serving cell appears.

[0165] d) Whether the BWP ID field corresponding to the target serving cell appears.

[0166] For example, if four bits are used to represent a target serving cell, then the first four bits being 1100 can indicate that the UE activates the target serving cell, the target reference signal resource indication field corresponding to the target serving cell appears, the target TCI status indication field corresponding to the target serving cell does not appear, and the BWP ID field corresponding to the target serving cell does not appear. For another example, if one bit is used to represent a target serving cell, then the first bit being 1 can also indicate that the target serving cell is activated, the target reference signal resource indication field corresponding to the target serving cell appears, the target TCI status indication field corresponding to the target serving cell appears, and the BWP ID field corresponding to the target serving cell appears.

[0167] According to the serving cell identifier ServCellIndex, the octets containing the target reference signal resource indication field, the target TCI state indication field, and the BWP ID field of the target serving cell may appear in ascending or descending order;

[0168] Optionally, the fourth relevant information mentioned in the above embodiment includes at least one of the following:

[0169] a) A target state of the first TCI state, the target state including an activated state or a deactivated state.

[0170] b) Whether the target reference signal resource indication field corresponding to the first TCI state appears.

[0171] c) Whether the target TCI state indication field corresponding to the first TCI state appears.

[0172] Optionally, the fifth relevant information mentioned in the above embodiment includes at least one of the following:

[0173] a) A target state of the target reference signal, wherein the target state includes an activated state or a deactivated state.

[0174] b) Whether the target TCI status indication field corresponding to the target reference signal appears.

[0175] c) Whether the first TCI state ID field or the first TCI state bitmap field corresponding to the target reference signal appears.

[0176] Optionally, the first indication information mentioned in each of the above embodiments may also be used to activate a channel state information reference signal (CSI-RS) resource; wherein the first indication information further includes at least one of the following:

[0177] 1) CSI-RS activation or deactivation information, where the CSI-RS activation or deactivation information is used to indicate activation or deactivation of a preconfigured CSI-RS resource set.

[0178] 2) CSI-RS ID information, where the CSI-RS ID information is used to indicate the ID of the activated or deactivated CSI-RS resource set.

[0179] 3) TCI status information of the CSI-RS, where the TCI status information of the CSI-RS is used to indicate the QCL source of the activated or deactivated CSI-RS resource set.

[0180] Optionally, in each of the foregoing embodiments, before the terminal receives the first indication information, the method further includes: the terminal receives first configuration information; wherein, the first configuration information includes at least one of the following: configuration information of the target reference signal resource; configuration information of the target TCI state.

[0181] Optionally, the target reference signal resource includes at least one of the following:

[0182] 1) One or more target reference signals.

[0183] 2) One or more target reference signal sets, each of which may include one or more target reference signals.

[0184] 3) A list of one or more target reference signal sets, each of which may include one or more target reference signals.

[0185] Optionally, the first configuration information may include at least one of the following:

[0186] 1) The absolute time domain position or interval where the target reference signal resource appears.

[0187] 2) Information on the quantity of the target reference signal resources.

[0188] 3) First time domain offset information, where the first time domain offset information is used to indicate a time domain offset between a first time domain position and a time domain position for sending the target reference signal resource.

[0189] 4) Second time domain offset information, where the second time domain offset information is used to indicate a time domain offset within a time unit for transmitting the target reference signal resource.

[0190] 5) The number of transmissions and time domain period information of the target reference signal resource.

[0191] 6) Activation or deactivation indication information of the target reference signal resource.

[0192] 7) The ID of the target reference signal resource that needs to be activated or deactivated.

[0193] 8) Information on the purpose or usage of the target reference signal resource.

[0194] 9) Time domain offsets between the target reference signal resources for different measurement purposes.

[0195] 10) Activation or deactivation indication information of the target TCI state.

[0196] 11) The ID of the target TCI state that needs to be activated or deactivated.

[0197] To illustrate in detail the reference signal transmission method provided in various embodiments of the present application, several specific embodiments will be described below.

[0198] Example 1

[0199] In this embodiment, when the network side device adds the target serving cell as activated through RRC signaling, activation of the target reference signal resource and / or target TCI state is triggered. This embodiment includes the following steps.

[0200] Step 1: The terminal (UE) receives RRC signaling, performs an operation of adding secondary cells 1, 3, and 5 according to the RRC signaling, and initializes the added secondary cells 1, 3, and 5 to an activated state.

[0201] Step 2: If the RRC message carries the resource configuration of the target reference signal, the UE directly activates the target reference signal resources corresponding to secondary cells 1, 3, and 5, or activates the target reference signal if the RRC message carries a target reference signal activation indication (including the ID of the target reference signal to be activated).

[0202] Step 3: If the target reference signal resource configuration carries the TCI state configuration, the UE directly activates the TCI state of the target reference signal corresponding to the secondary cell (for example, only one TCI state is configured, or, when the target reference signal resource configuration indicates that the TCI state is activated (for example, the activation / deactivation indication of the TCI state, the ID of the TCI state that needs to be activated / deactivated), activates the TCI state.

[0203] This embodiment can also be applied to the scenario where RRC signaling directly activates a special cell (SpCell) or activates a cell group, that is, the serving cell and serving cell group activation command implicitly indicates the activation of the target reference signal resource and / or the TCI state corresponding to the target reference signal resource.

[0204] Example 2

[0205] In this embodiment, the first MAC CE triggers or activates the pre-configured target reference signal resources and / or the TCI state corresponding to the target reference signal resources. The first MAC CE may be an existing secondary cell activation / deactivation signaling (LegecySCell A / D). This embodiment includes the following steps.

[0206] Step 0: The UE receives the target reference signal resource configuration, and the SCell is in the deactivated state.

[0207] Step 1: The UE receives an R15 / R16 SCell activation / deactivation MAC CE (i.e., the first MAC CE). According to the instruction of the first MAC CE, the UE activates secondary cells 1, 3, and 5.

[0208] Step 2: The UE activates the pre-configured target reference signal resources on the secondary cells 1, 3, and 5 simultaneously with or after activating the secondary cells 1, 3, and 5.

[0209] Step 3: The UE activates the TCI state corresponding to the target reference signal resource while or after activating the secondary cells 1, 3, 5, or while or after activating the pre-configured target reference signal resource on the secondary cells 1, 3, 5.

[0210] This embodiment can also be applied to the scenario where the first MAC CE activates the SpCell or activates a cell group, that is, the serving cell and serving cell group activation command implicitly indicates the activation of the target reference signal resource and the TCI state corresponding to the target reference signal resource.

[0211] Example 3

[0212] In this embodiment, the second MAC CE (such as the newly defined MAC CE) may activate the target reference signal resource or the target TCI state corresponding to the target reference signal resource; or simultaneously activate the target reference signal resource and the TCI state corresponding to the target reference signal resource; or simultaneously activate the target serving cell, the target reference signal resource and the TCI state corresponding to the target reference signal resource.

[0213] The following will introduce Example 3 in Example 1 and Example 2.

[0214] Example 1

[0215] In Example 1, the first MAC CE activates the SCell, and the second MAC CE activates the target reference signal resources and the TCI state corresponding to the target reference signal resources on a single target serving cell. Example 1 includes the following steps:

[0216] Step 0: The UE receives the target reference signal resource configuration, and the SCell is in the deactivated state.

[0217] Step 1: The UE receives an R15 / R16 SCell activation / deactivation MAC CE (ie, the first MAC CE). According to the instruction of the first MAC CE, the UE activates the secondary cell 1.

[0218] Step 2: The UE receives the first second MAC CE while or after activating the secondary cell 1. The first second MAC CE mentioned here is used to activate the target reference signal resource corresponding to the secondary cell 1.

[0219] Step 3: The UE receives a second second MAC CE while or after activating the secondary cell 1, or while or after activating the pre-configured target reference signal resources on the secondary cell 1, where the second second MAC CE is used to indicate the TCI state corresponding to the activated target reference signal resources.

[0220] The second second MAC CE in this step may be a MAC CE defined in R15 / R16 for activating the TCI state of the PDSCH or PDCCH, or may be a newly defined second MAC CE.

[0221] In this embodiment, the first MAC CE and the second MAC CE may be identified by one logical channel identifier (LCID), or different LCIDs may be used respectively.

[0222] Example 2

[0223] In Example 2, the second MAC CE activates the SCell, the target reference signal resources on the SCell, and the TCI state corresponding to the target reference signal resources. Example 2 includes the following steps:

[0224] Step 0: The UE receives the target reference signal resource configuration, and the SCell is in the deactivated state.

[0225] Step 1: The UE receives a second MAC CE and, according to the second MAC CE, activates the secondary cell 1, activates the target reference signal resources, and activates the TCI state corresponding to the target reference signal resources.

[0226] Example 4

[0227] This embodiment mainly introduces a possible situation of the second MAC CE. The second MAC CE in this embodiment can be used to activate a target reference signal resource (described later as TRS) on a single serving cell.

[0228] In this embodiment, the second MAC CE is identified by the LCID field or the extended logical channel identifier (eLCID) field contained in the MAC subheader. The second MAC CE can be variable length or fixed length, which is not limited here. The second MAC CE is used to activate the TRS of a serving cell and can include at least one of the following fields:

[0229] Serving cell ID field: This field indicates the ID of the serving cell to which the second MAC CE applies. The serving cell can be an SCell or an SpCell. Optionally, if the indicated serving cell belongs to a specific serving cell set (e.g., a network-configured serving cell set), the second MAC CE can be applied to some or all serving cells in the serving cell set. Optionally, the absence of this field may indicate that the second MAC CE applies to a specific serving cell (e.g., an SpCell) or a specific serving cell group (e.g., an MCG or SCG).

[0230] BWP ID field: This field indicates the BWP of the corresponding serving cell or serving cell group. Optionally, if the second MAC CE applies to a group of serving cells, the UE ignores this field. Optionally, the absence of this field can implicitly indicate that the second MAC CE applies to a specific BWP, such as the first activated UL / DL BWP or the currently activated BWP.

[0231] For example, when the terminal receives the second MAC CE, the service cell ID field corresponds to SCell1 and the BWP ID field does not appear. If SCell1 is currently in a deactivated state, the UE activates SCell1 and the second MAC CE is applied to the first activated BWP of SCell1. For another example, under the same conditions, if SCell1 is currently in an activated state and has an activated BWP, the UE applies the second MAC CE to the BWP of SCell1 that is currently in an activated state.

[0232] TRS Destination Field: Used to indicate the purpose and usage of the TRS resource (resource set) to be activated or deactivated. For example, RRC configures corresponding TRS resource sets for ACG, time / frequency domain tracking, and CSI-RS. The second MAC CE can use a 3-bit bitmap to indicate whether the TRS for the purposes of ACG, time / frequency domain tracking, and CSI-RS is activated.

[0233] TRS (set) ID field: This field indicates the ID of the TRS resource (set) to be activated or deactivated. There can be one TRS (set) ID field, or one for each activated TRS destination.

[0234] Activation (A) / Deactivation (D) field: This field indicates activation or deactivation of the corresponding TRS (set). The first value (such as 1) indicates activation, and other values ​​may indicate deactivation. All TRS (sets) indicated in the second MAC CE can share a common A / D field or each TRS (set) can have a corresponding A / D field.

[0235] TRS(set) bitmap: indicates whether to activate or deactivate the TRS(set) at the corresponding position. The first value (such as 1) indicates activation, and other values ​​indicate deactivation.

[0236] Repeat field: used to indicate whether the number of TRS (set) transmissions is greater than 1.

[0237] Repeat count field: used to indicate the number of times TRS(set) is sent.

[0238] TRS Offset field: This field indicates at least one of the following:

[0239] First time domain offset: indicates the time domain offset between the first time domain position and the time domain position for sending the TRS resource / TRS resource set. The first time domain position can be the time unit containing the TRS resource / TRS resource set activation command (RRC / MAC CE / DCI), or the time unit for the UE to send the corresponding uplink feedback.

[0240] Second time domain offset: indicates the time domain offset within the time unit of transmitting the TRS resource / TRS resource set. For example, within the slot for transmitting the TRS resource / TRS resource set, the time domain offset between the symbol of the (first) transmission of the TRS resource / TRS resource set and the first symbol;

[0241] TRS quantity field: used to indicate the quantity of TRS resources.

[0242] C field: used to indicate whether the byte containing the above specific field appears.

[0243] R: Reserved bit.

[0244] like Figures 3 to 7 As shown, Figures 3 to 7 These are some examples of the second MAC CE introduced in Example 4. Figure 6 The S field in the TRS bitmap field indicates that the TRS of a serving cell is activated / deactivated.

[0245] The second MAC CE introduced in this embodiment may be sent in the current cell (the serving cell ID may not appear in this case), or may be sent in other cells, such as PCell, PSCell, and other SCells.

[0246] Example 5

[0247] This embodiment mainly introduces a possible situation of the second MAC CE. The second MAC CE in this embodiment can be used to activate one or more TRS resources (for a single cell) or TCI states corresponding to a resource set, or to simultaneously activate one or more TRSs and one or more TCI states.

[0248] In this embodiment, the second MAC CE is identified by the LCID field or eLCID field contained in the MAC subheader. The second MAC CE can be variable length or fixed length, which is not limited here. The second MAC CE is used to activate the TCI state corresponding to the TRS and includes at least one of the following fields:

[0249] Serving cell ID field / BWP ID field / repetition field / repetition number field / TRS offset field / C field: usage is the same as in embodiment 4.

[0250] TRS (set) ID field: usage is the same as that of embodiment 4. If this field does not appear, the second MAC CE applies to the TRS that is currently activated or about to be activated.

[0251] A / D field: Usage is the same as in Example 4. Optionally, if this field does not appear, if the TRS indicated by the corresponding TRS (set) ID field is in an activated state, then the second MAC CE is not used to activate the TRS. Conversely, if the TRS indicated by the corresponding TRS (set) ID field is in a deactivated state, then the MAC CE can be used to activate the TRS.

[0252] TRS (set) bitmap field: usage is the same as that of embodiment 4. If this field does not appear, the second MAC CE applies to the TRS that is currently activated or about to be activated.

[0253] TCI State ID field: This field contains one or more TCI state IDs (such as TCI-State Id. Optionally, the pre-configured TCI state can be dedicated to the temporary reference signal, or the TCI state configured in PDSCH-Config, or the TCI state configured in PDCCH-Config), which is used to indicate the QCL source of the activated TRS resource. For example, TCI State ID0 indicates the TCI state of the first TRS resource in the TRS ID field, TCI State ID1 indicates the second, and so on. Optionally, if the A / D field indicates deactivation of the TRS resource, this field does not appear.

[0254] TCI Status ID i,j Field: This field is used to indicate the ID of the jth TCI state of the i-th code point in the DCI transmission configuration indication field.

[0255] First T i Field: This field is used to indicate the activation / deactivation state of TCI state i (TCI-State Id=i). This field can be in the form of a bitmap to indicate the states of multiple TCI states. For example, a T1 value of the first value indicates that the state of TCI state i is activated, and if the T1 value is the second value, it indicates a deactivated state. Optionally, a T1 value of the first value also indicates that the corresponding TCI state needs to be mapped to a code point of a DCI predefined field (such as a Transmission Configuration Indication field). Mapping can be performed according to the location of occurrence.

[0256] Resource ID i : The resource ID for indicating the QCL source of the TRS.

[0257] Resource Serving Cell ID i : Used to indicate in which serving cell the Resource IDi is located;

[0258] Resource BWP IDi: Used to indicate the BWP corresponding to the serving cell where the Resource IDi is located.

[0259] Second T i Field: This field is used to indicate the selection status of the aperiodic trigger states (Aperiodic TriggerStates configured within aperiodicTriggerStateList) pre-configured by RRC. It can be indicated in the form of a bitmap. For example, T0 represents the first trigger state in the pre-configured aperiodic trigger state list, T1 represents the second, and so on. When T0 is set to the first value (such as 1), it means that the corresponding aperiodic trigger state needs to be mapped to a code point in the DCI predefined field (such as the CSI request field). The mapping can be performed according to the position where it appears.

[0260] If the number of TCI states activated by the second MAC CE is 1, the QCL of the AP-TRS corresponds to this TCI state; if the number of TCI states activated by the second MAC CE is N>1, there are N AP-TRSs, and the QCL of each AP-TRS corresponds to one of the N TCI states respectively; or there are 1 <= M < N AP-TRSs, and the QCLs correspond to M of the N TCI states respectively, where the M TCI states can be default TCI states, such as the TCI state indicated by the code point with the smallest code point index or the TCI state with the smallest TCI index.

[0261] Furthermore, there is a corresponding relationship between one or more TRS resources or resource sets and one or more TCI states; furthermore, the corresponding relationship is that the TRS is the RS configured in the TCI state, or the QCL source corresponding to the RS configured in the TCI state.

[0262] As Figures 8 to 10 shown, Figures 8 to 10 are some examples of the second MAC CE introduced in Embodiment 5. Among them, Figure 9 the T field in the figure indicates the TCI states for activating and deactivating the TRS in the form of a TCI state bitmap.

[0263] Embodiment 6

[0264] This embodiment mainly introduces a possible situation of the second MAC CE. The second MAC CE in this embodiment can be used to activate the TRS and / or corresponding TCI states of multiple serving cells, and can also be used to activate the corresponding serving cell.

[0265] The second MAC CE is identified by the LCID field or eLCID field contained in the MAC subheader. The second MAC CE can be variable length or fixed length, which is not limited here. The second MAC CE includes at least one of the following fields:

[0266] C i Field: used to indicate whether the TRS or TCI status for TRS information corresponding to the serving cell identified by ServCellIndex i appears. A value of 1 indicates that it appears, otherwise it does not appear. According to ServCellIndex, the bytes containing the corresponding TRS or TCI status information appear in ascending order;

[0267] Length field: used to indicate the number of bytes of the second MAC CE.

[0268] The TRS / TCI status information of each serving cell is at least one field in the second MAC CE described in the fourth and fifth embodiments.

[0269] Optionally, where C i The serving cell indicated by the serving cell ID field or the serving cell ID field, if the serving cell is in a deactivated state when receiving the MAC CE, the MAC CE is also used to activate the serving cell.

[0270] like Figures 11 to 13 As shown, Figures 11 to 12 These are some examples of the second MAC CE introduced in the fifth embodiment.

[0271] The second MAC CE may be sent in the current cell (the serving cell ID may not appear in this case), or may be sent in other cells, such as PCell, PSCell, or other SCells.

[0272] Example 7

[0273] This embodiment mainly introduces a possible scenario of the second MAC CE. In addition to the functions of the second MAC CE described in the previous embodiments, the second MAC CE in this embodiment can also activate an existing aperiodic CSI-RS resource set. The second MAC CE can include at least one of the following:

[0274] 1) CSI-RS activation or deactivation information, where the CSI-RS activation or deactivation information is used to indicate activation or deactivation of a preconfigured CSI-RS resource set.

[0275] 2) CSI-RS ID information, where the CSI-RS ID information is used to indicate the ID of the activated or deactivated CSI-RS resource set.

[0276] 3) TCI status information of the CSI-RS, where the TCI status information of the CSI-RS is used to indicate the QCL source of the activated or deactivated CSI-RS resource set.

[0277] Example 8

[0278] This embodiment mainly introduces RRC configuration of TRS resources. TRS resource configuration can be configured for each serving cell, each BWP, or each cell group. TRS resource configuration includes at least one of the following:

[0279] 1) One or more TRSs, each of which is identified by a TRS ID.

[0280] 2) One or more TRS resource sets, each TRS resource set is identified by a TRS resource set ID.

[0281] 3) A list of one or more TRS resource sets (TRS resource set list), which contains multiple TRS resource sets.

[0282] In this embodiment, the TRS resource set / TRS resource configuration may include at least one of the following:

[0283] Absolute temporal position: indicates the time unit (time unit such as slot or symbol) where a TRS resource / TRS resource set (first time) appears.

[0284] Absolute time domain interval: The interval can be indicated by the starting position and length, and the length can also be based on the protocol agreement.

[0285] The number of TRS resources or TRS resource sets.

[0286] First time domain offset: indicates the time domain offset between the first time domain position and the time domain position at which the TRS resource / TRS resource set is sent. The first time domain position can be the time unit containing the TRS resource / TRS resource set activation command (RRC / MAC CE / DCI), or the time unit at which the UE sends the corresponding uplink feedback. If the network does not configure this parameter, the UE considers the time domain offset to be 0 or the value agreed upon by the protocol.

[0287] Second time domain offset: indicates the time domain offset within the time unit of transmitting TRS resource / TRS resource set. For example, within the slot of transmitting TRS resource / TRS resource set, the time domain offset between the symbol of (first) transmitting TRS resource / TRS resource set and the first symbol.

[0288] The number of transmissions and the time domain period of the TRS resource / TRS resource set (if the number of transmissions is greater than 1).

[0289] Activation / deactivation indication of TRS resource / TRS resource set.

[0290] ID of the TRS resource or TRS resource set to be activated or deactivated.

[0291] Resource usage / purpose: AGC, time-frequency tracking, CSI measurement, etc.

[0292] Time domain offset between TRS resources used for different measurement purposes.

[0293] QCL information / TCI status: used to indicate at least one TCI status corresponding to a TRS resource / TRS resource set. The QCL source can be SSB or other RS.

[0294] Activation / deactivation indication of TCI status.

[0295] The ID of the TCI state to be activated / deactivated.

[0296] It should be noted that the above resources can be configured separately for different measurement purposes.

[0297] The above time units are not limited here, for example, they can be time slot level, symbol level, millisecond level, etc.

[0298] Combination of the above Figures 2 to 12 The reference signal transmission method according to the embodiment of the present application is described in detail. Figure 13 The reference signal transmission method according to another embodiment of the present application is described in detail. It can be understood that the interaction between the network side device and the terminal described in the network side device is the same as Figure 2 The description on the terminal side in the method shown is the same, and to avoid repetition, the relevant description is appropriately omitted.

[0299] Figure 13 This is a schematic diagram of the reference signal transmission method implementation flow of the embodiment of the present application, which can be applied to network side equipment. Figure 13 As shown, the method 1300 includes the following steps.

[0300] S1302: The network side device sends first indication information, where the first indication information is used by the terminal to determine at least one of the following: activating or deactivating at least one target reference signal resource; activating or deactivating at least one target TCI state, where the target TCI state is related to the target reference signal resource.

[0301] The target reference signal resource is used for at least one of the following processes of at least one target service cell: activation of the target service cell, activation of at least one first TCI state, CSI acquisition, acquisition of uplink channel information, CSI measurement, beam measurement, beam failure detection, RLM measurement, RRM measurement, cell search, time-frequency tracking, acquisition timing, AGC, and rate matching.

[0302] In an embodiment of the present application, a network-side device sends a first indication message, and a terminal determines at least one of the following based on the received first indication message: activate or deactivate at least one target reference signal resource; activate or deactivate at least one target TCI state related to the target reference signal resource; wherein the target reference signal resource can be used for at least one of the following processes of at least one target service cell: activation of the target service cell, activation of at least one first TCI state, CSI acquisition, acquisition of uplink channel information, CSI measurement, beam measurement, beam failure detection, RLM measurement, RRM measurement, cell search, time-frequency tracking, acquisition timing, AGC, rate matching. The embodiment of the present application is conducive to realizing the transmission / cancellation of the target reference signal resource, accelerating the activation of the target service cell, and improving the transmission efficiency or stability of the target service cell.

[0303] Optionally, as an embodiment, the target reference signal resource, the target TCI state, the target serving cell, and the first TCI state satisfy at least one of the following mapping relationships:

[0304] 1) One target reference signal resource corresponds to at least one target TCI state.

[0305] 2) One target reference signal resource corresponds to at least one target serving cell.

[0306] 3) One target TCI state corresponds to at least one target reference signal resource.

[0307] 4) One target TCI state corresponds to at least one target serving cell.

[0308] 5) One target serving cell corresponds to at least one target reference signal resource.

[0309] 6) One target serving cell corresponds to at least one target TCI state.

[0310] 7) One target reference signal resource corresponds to at least one first TCI state.

[0311] 8) One of the first TCI states corresponds to at least one of the target reference signal resources.

[0312] Optionally, as an embodiment, the first indication information is used by the terminal to determine activation or deactivation of at least one target reference signal resource, and the first indication information is carried in RRC signaling, and the RRC signaling may be at least one of the following:

[0313] 1) Sending RRC signaling of configuration information corresponding to the target reference signal resource.

[0314] 2) Sending RRC signaling of activation or deactivation indication information corresponding to the target reference signal resource.

[0315] 3) RRC signaling for configuring at least one of the target serving cells corresponding to the target reference signal resource to be in an activated state or a deactivated state.

[0316] 4) configuring RRC signaling that at least one target TCI state corresponding to the target reference signal resource is activated or deactivated.

[0317] 5) RRC signaling for configuring at least one serving cell associated with the target reference signal resource to be in an activated state or a deactivated state.

[0318] 6) configuring RRC signaling that the state of at least one first TCI corresponding to the target reference signal resource is an activated state or a deactivated state.

[0319] 7) Configuring RRC signaling of at least one serving cell associated with at least one of the first TCI states as an activated state or a deactivated state.

[0320] 8) RRC signaling configuring the bandwidth part BWP corresponding to the target reference signal resource to be in an activated state or a deactivated state.

[0321] Optionally, as an embodiment, the first indication information is used by the terminal to determine whether to activate or deactivate at least one of the target TCI states. The first indication information is carried in RRC signaling, and the RRC signaling may be at least one of the following:

[0322] 1) Sending RRC signaling of configuration information corresponding to the target TCI state.

[0323] 2) Sending RRC signaling of activation or deactivation indication information corresponding to the target TCI state.

[0324] 3) RRC signaling configuring at least one of the target reference signal resources corresponding to the target TCI state to be in an activated state or a deactivated state.

[0325] 4) Configuring RRC signaling of at least one of the target serving cells corresponding to the target TCI state as an activated state or a deactivated state.

[0326] 5) Configuring RRC signaling of at least one serving cell associated with at least one of the target TCI states to be in an activated state or a deactivated state.

[0327] 6) Configure the BWP corresponding to the target TCI state to be activated or deactivated RRC signaling.

[0328] Optionally, as an embodiment, the first indication information is carried in a first MAC CE signaling, and the first MAC CE signaling may be at least one of the following:

[0329] 1) Activate or deactivate MAC CE signaling of at least one of the target serving cells.

[0330] 2) Activate or deactivate MAC CE signaling of at least one serving cell associated with at least one of the target reference signal resources.

[0331] 3) Activate or deactivate MAC CE signaling of at least one serving cell associated with at least one of the target TCI states.

[0332] 4) Activate or deactivate MAC CE signaling of at least one of the first TCI states.

[0333] 5) Activate or deactivate MAC CE signaling of at least one serving cell associated with at least one of the first TCI states.

[0334] Optionally, as an embodiment, the first indication information is carried in second MAC CE signaling, and the second MAC CE signaling may include at least one of the following fields:

[0335] 1) A first length field, where the first length field is used to indicate the length of the second MAC CE signaling.

[0336] 2) A target reference signal resource indication field, wherein the target reference signal resource indication field is used to indicate first relevant information of at least one target reference signal resource.

[0337] 3) A target TCI state indication field, where the target TCI state indication field is used to indicate at least one second related information of the target TCI state.

[0338] 4) At least one target serving cell identification ID field, where the target serving cell ID field is used to indicate the ID of the target serving cell.

[0339] 5) A target serving cell bitmap field, wherein bits of a preset length in the target serving cell bitmap field are used to indicate third relevant information of the target serving cell corresponding to the bits.

[0340] 6) At least one BWP ID field, where the BWP ID field is used to indicate the uplink and / or downlink BWP corresponding to the target reference signal resource and / or the target TCI state.

[0341] 7) A first TCI state ID field, where the first TCI state ID field is used to indicate at least one ID of the first TCI state.

[0342] 8) A first TCI state bitmap field, wherein bits of a preset length in the first TCI state bitmap field are used to indicate fourth related information of the first TCI state corresponding to the bits.

[0343] Optionally, as an embodiment, the first indication information is further used by the terminal to determine at least one of the following:

[0344] 1) Activate or deactivate at least one of the target serving cells.

[0345] 2) Activate or deactivate at least one of the first TCI states.

[0346] 3) Activate the BWP indicated by the BWP ID field.

[0347] Optionally, as an embodiment, the target reference signal resource indication field includes at least one of the following fields:

[0348] a) a second length field, where the second length field is used to indicate the length of the target reference signal resource indication field.

[0349] b) Target reference signal resource destination field, the target reference signal resource destination field is used to indicate the purpose or use of the activated or deactivated target reference signal resource.

[0350] c) at least one first activation state field, where the first activation state field is used to indicate activation or deactivation of at least one target reference signal resource.

[0351] d) at least one target reference signal resource ID field, where the target reference signal resource ID field is used to indicate the ID of the target reference signal resource that is activated or deactivated, or to indicate the ID of the target reference signal resource corresponding to the target TCI state that is activated or deactivated.

[0352] e) a target reference signal resource bitmap field, wherein bits of a preset length in the target reference signal resource bitmap field are used to indicate fifth relevant information of at least one target reference signal resource.

[0353] f) a repetition field, where the repetition field is used to indicate whether the number of transmissions of the activated target reference signal resource is greater than one.

[0354] g) a repetition transmission number field, where the repetition transmission number field is used to indicate the number of transmissions of the activated target reference signal resource.

[0355] h) a target reference signal resource time domain offset field, where the target reference signal resource time domain offset field is used to indicate a time domain offset associated with the activated first reference signal.

[0356] i) Target reference signal resource quantity field, where the target reference signal resource quantity field is used to indicate the quantity of the activated or deactivated target reference signal resources.

[0357] Optionally, as an embodiment, the target TCI status indication field includes at least one of the following fields:

[0358] a) A third length field, where the third length field is used to indicate the length of the target TCI status indication field.

[0359] b) a second activation state field, where the second activation state field is used to indicate activation or deactivation of at least one of the target TCI states.

[0360] c) Target TCI state ID field, the target TCI state ID field is used to indicate the ID of the target TCI state to be activated or deactivated.

[0361] d) Target TCI state bitmap field, wherein bits of a preset length in the target TCI state bitmap field are used to indicate a target state of the target TCI state corresponding to the bits, wherein the target state includes an activated state or a deactivated state.

[0362] e) Second TCI status ID i,j Field, the second TCI status ID i,j The field is used to indicate the ID of the jth target TCI state of the i-th code point in the downlink control information DCI transmission configuration indication field that is activated or deactivated.

[0363] f) A first resource ID field, where the first resource ID field is used to indicate a resource ID of a first resource, where the first resource is used to provide a quasi-co-located QCL source of the target reference signal resource.

[0364] g) A first resource serving small area, where the first resource serving small area is used to indicate a serving cell where the first resource is located.

[0365] h) a first resource BWP ID field, where the first resource BWP ID field is used to indicate the BWP corresponding to the first resource or the serving cell where the first resource is located.

[0366] i) a non-periodic trigger state bitmap field, wherein bits of a preset length in the non-periodic trigger state bitmap field are used to indicate a selection state of the non-periodic trigger state corresponding to the bit.

[0367] Optionally, as an embodiment, the third relevant information includes at least one of the following:

[0368] a) A target state of the target serving cell, where the target state includes an activated state or a deactivated state.

[0369] b) Whether the target reference signal resource indication field corresponding to the target serving cell appears.

[0370] c) Whether the target TCI status indication field corresponding to the target serving cell appears.

[0371] d) Whether the BWP ID field corresponding to the target serving cell appears.

[0372] Optionally, as an embodiment, the fourth relevant information includes at least one of the following:

[0373] a) A target state of the first TCI state, the target state including an activated state or a deactivated state.

[0374] b) Whether the target reference signal resource indication field corresponding to the first TCI state appears.

[0375] c) Whether the target TCI state indication field corresponding to the first TCI state appears.

[0376] Optionally, as an embodiment, the fifth relevant information includes at least one of the following:

[0377] a) A target state of the target reference signal, wherein the target state includes an activated state or a deactivated state.

[0378] b) Whether the target TCI status indication field corresponding to the target reference signal appears.

[0379] c) Whether the first TCI state ID field or the first TCI state bitmap field corresponding to the target reference signal appears.

[0380] Optionally, as an embodiment, the first indication information is further used to activate CSI-RS resources; wherein the first indication information further includes at least one of the following:

[0381] 1) CSI-RS activation or deactivation information, where the CSI-RS activation or deactivation information is used to indicate activation or deactivation of a preconfigured CSI-RS resource set.

[0382] 2) CSI-RS ID information, where the CSI-RS ID information is used to indicate the ID of the activated or deactivated CSI-RS resource set.

[0383] 3) TCI status information of the CSI-RS, where the TCI status information of the CSI-RS is used to indicate the QCL source of the activated or deactivated CSI-RS resource set.

[0384] Optionally, as an embodiment, before the network side device sends the first indication information, the method also includes: the network side device sends first configuration information; wherein, the first configuration information includes at least one of the following: configuration information of the target reference signal resource; configuration information of the target TCI state.

[0385] Optionally, as an embodiment, the target reference signal resource includes at least one of the following:

[0386] 1) One or more target reference signals.

[0387] 2) One or more target reference signal sets, each of which may include one or more target reference signals.

[0388] 3) A list of one or more target reference signal sets, each of which may include one or more target reference signals.

[0389] Optionally, as an embodiment, the first configuration information includes at least one of the following:

[0390] 1) The absolute time domain position or interval where the target reference signal resource appears.

[0391] 2) Information on the quantity of the target reference signal resources.

[0392] 3) First time domain offset information, where the first time domain offset information is used to indicate a time domain offset between a first time domain position and a time domain position for sending the target reference signal resource.

[0393] 4) Second time domain offset information, where the second time domain offset information is used to indicate a time domain offset within a time unit for transmitting the target reference signal resource.

[0394] 5) The number of transmissions and time domain period information of the target reference signal resource.

[0395] 6) Activation or deactivation indication information of the target reference signal resource.

[0396] 7) The ID of the target reference signal resource that needs to be activated or deactivated.

[0397] 8) Information on the purpose or usage of the target reference signal resource.

[0398] 9) Time domain offsets between the target reference signal resources for different measurement purposes.

[0399] 10) Activation or deactivation indication information of the target TCI state.

[0400] 11) The ID of the target TCI state that needs to be activated or deactivated.

[0401] It should be noted that the reference signal transmission method provided in the embodiments of the present application may be performed by a reference signal transmission device, or a control module in the reference signal transmission device configured to perform the reference signal transmission method. In the embodiments of the present application, the reference signal transmission device provided in the embodiments of the present application is described by taking the reference signal transmission method performed by the reference signal transmission device as an example.

[0402] Figure 14 FIG is a schematic diagram of the structure of a reference signal transmission device according to an embodiment of the present application, which may correspond to a terminal in other embodiments. Figure 14 As shown, the apparatus 1400 includes the following modules.

[0403] The receiving module 1402 may be configured to receive first indication information.

[0404] The determination module 1404 can be used to determine at least one of the following based on the first indication information: activate or deactivate at least one target reference signal resource; activate or deactivate at least one target TCI state, where the target TCI state is related to the target reference signal resource.

[0405] The target reference signal resource is used for at least one of the following processes of at least one target service cell: activation of the target service cell, activation of at least one first TCI state, CSI acquisition, acquisition of uplink channel information, CSI measurement, beam measurement, beam failure detection, RLM measurement, RRM measurement, cell search, time-frequency tracking, acquisition timing, AGC, and rate matching.

[0406] In an embodiment of the present application, the device 1400 determines at least one of the following based on the received first indication information: activating or deactivating at least one target reference signal resource; activating or deactivating at least one target TCI state related to the target reference signal resource; wherein the target reference signal resource can be used for at least one of the following processes of at least one target service cell: activation of the target service cell, activation of at least one first TCI state, CSI acquisition, acquisition of uplink channel information, CSI measurement, beam measurement, beam failure detection, RLM measurement, RRM measurement, cell search, time-frequency tracking, acquisition timing, AGC, and rate matching. The embodiment of the present application is conducive to realizing the transmission / cancellation of the target reference signal resource, accelerating the activation of the target service cell, and improving the transmission efficiency or stability of the target service cell.

[0407] Optionally, as an embodiment, the target reference signal resource, the target TCI state, the target serving cell, and the first TCI state satisfy at least one of the following mapping relationships:

[0408] 1) One target reference signal resource corresponds to at least one target TCI state.

[0409] 2) One target reference signal resource corresponds to at least one target serving cell.

[0410] 3) One target TCI state corresponds to at least one target reference signal resource.

[0411] 4) One target TCI state corresponds to at least one target serving cell.

[0412] 5) One target serving cell corresponds to at least one target reference signal resource.

[0413] 6) One target serving cell corresponds to at least one target TCI state.

[0414] 7) One target reference signal resource corresponds to at least one first TCI state.

[0415] 8) One of the first TCI states corresponds to at least one of the target reference signal resources.

[0416] Optionally, as an embodiment, the determining module 1404 determines to activate or deactivate at least one of the target reference signal resources according to the first indication information, where the first indication information is carried in RRC signaling, and the RRC signaling may be at least one of the following:

[0417] 1) Sending RRC signaling of configuration information corresponding to the target reference signal resource.

[0418] 2) Sending RRC signaling of activation or deactivation indication information corresponding to the target reference signal resource.

[0419] 3) RRC signaling for configuring at least one of the target serving cells corresponding to the target reference signal resource to be in an activated state or a deactivated state.

[0420] 4) configuring RRC signaling that at least one target TCI state corresponding to the target reference signal resource is activated or deactivated.

[0421] 5) RRC signaling for configuring at least one serving cell associated with the target reference signal resource to be in an activated state or a deactivated state.

[0422] 6) configuring RRC signaling that the state of at least one first TCI corresponding to the target reference signal resource is an activated state or a deactivated state.

[0423] 7) Configuring RRC signaling of at least one serving cell associated with at least one of the first TCI states as an activated state or a deactivated state.

[0424] 8) RRC signaling configuring the bandwidth part BWP corresponding to the target reference signal resource to be in an activated state or a deactivated state.

[0425] Optionally, as an embodiment, the determining module 1404 determines to activate or deactivate at least one of the target TCI states according to the first indication information, where the first indication information is carried in RRC signaling, and the RRC signaling may be at least one of the following:

[0426] 1) Sending RRC signaling of configuration information corresponding to the target TCI state.

[0427] 2) Sending RRC signaling of activation or deactivation indication information corresponding to the target TCI state.

[0428] 3) RRC signaling configuring at least one of the target reference signal resources corresponding to the target TCI state to be in an activated state or a deactivated state.

[0429] 4) Configuring RRC signaling of at least one of the target serving cells corresponding to the target TCI state as an activated state or a deactivated state.

[0430] 5) Configuring RRC signaling of at least one serving cell associated with at least one of the target TCI states to be in an activated state or a deactivated state.

[0431] 6) Configure the BWP corresponding to the target TCI state to be activated or deactivated RRC signaling.

[0432] Optionally, as an embodiment, the first indication information is carried in a first MAC CE signaling, and the first MAC CE signaling may be at least one of the following:

[0433] 1) Activate or deactivate MAC CE signaling of at least one of the target serving cells.

[0434] 2) Activate or deactivate MAC CE signaling of at least one serving cell associated with at least one of the target reference signal resources.

[0435] 3) Activate or deactivate MAC CE signaling of at least one serving cell associated with at least one of the target TCI states.

[0436] 4) Activate or deactivate MAC CE signaling of at least one of the first TCI states.

[0437] 5) Activate or deactivate MAC CE signaling of at least one serving cell associated with at least one of the first TCI states.

[0438] Optionally, as an embodiment, the first indication information is carried in second MAC CE signaling, and the second MAC CE signaling may include at least one of the following fields:

[0439] 1) A first length field, where the first length field is used to indicate the length of the second MAC CE signaling.

[0440] 2) A target reference signal resource indication field, wherein the target reference signal resource indication field is used to indicate first relevant information of at least one target reference signal resource.

[0441] 3) A target TCI state indication field, where the target TCI state indication field is used to indicate at least one second related information of the target TCI state.

[0442] 4) At least one target serving cell identification ID field, where the target serving cell ID field is used to indicate the ID of the target serving cell.

[0443] 5) A target serving cell bitmap field, wherein bits of a preset length in the target serving cell bitmap field are used to indicate third relevant information of the target serving cell corresponding to the bits.

[0444] 6) At least one BWP ID field, where the BWP ID field is used to indicate the uplink and / or downlink BWP corresponding to the target reference signal resource and / or the target TCI state.

[0445] 7) A first TCI state ID field, where the first TCI state ID field is used to indicate at least one ID of the first TCI state.

[0446] 8) A first TCI state bitmap field, wherein bits of a preset length in the first TCI state bitmap field are used to indicate fourth related information of the first TCI state corresponding to the bits.

[0447] According to the device 1400 of the embodiment of the present application, the process of the method 200 corresponding to the embodiment of the present application can be referred to, and the various units / modules in the device 1400 and the above-mentioned other operations and / or functions are respectively for implementing the corresponding processes in the method 200, and can achieve the same or equivalent technical effects. For the sake of brevity, they will not be repeated here.

[0448] The reference signal transmission device in the embodiments of the present application can be a device, a device or electronic device with an operating system, or a component, integrated circuit, or chip in a terminal. The device or electronic device can be a mobile terminal or a non-mobile terminal. For example, the mobile terminal can include, but is not limited to, the types of terminal 11 listed above, and the non-mobile terminal can be a server, a network attached storage (NAS), a personal computer (PC), a television (TV), a teller machine (ATM), or a self-service machine, etc., and the embodiments of the present application do not specifically limit this.

[0449] The reference signal transmission device provided in the embodiment of the present application can achieve Figures 2 to 13 The various processes implemented by the method embodiment achieve the same technical effect and are not described here again to avoid repetition.

[0450] Figure 15 FIG is a schematic diagram of the structure of a reference signal transmission device according to an embodiment of the present application, which may correspond to a network side device in other embodiments. Figure 15 As shown, the apparatus 1500 includes the following modules.

[0451] The sending module 1502 can be used to send first indication information, where the first indication information is used by the terminal to determine at least one of the following: activating or deactivating at least one target reference signal resource; activating or deactivating at least one target TCI state, where the target TCI state is related to the target reference signal resource.

[0452] The target reference signal resource is used for at least one of the following processes of at least one target service cell: activation of the target service cell, activation of at least one first TCI state, CSI acquisition, acquisition of uplink channel information, CSI measurement, beam measurement, beam failure detection, RLM measurement, RRM measurement, cell search, time-frequency tracking, acquisition timing, AGC, and rate matching.

[0453] In an embodiment of the present application, the device 1500 sends a first indication message, and the terminal determines at least one of the following based on the received first indication message: activate or deactivate at least one target reference signal resource; activate or deactivate at least one target TCI state related to the target reference signal resource; wherein the target reference signal resource can be used for at least one of the following processes of at least one target service cell: activation of the target service cell, activation of at least one first TCI state, CSI acquisition, acquisition of uplink channel information, CSI measurement, beam measurement, beam failure detection, RLM measurement, RRM measurement, cell search, time-frequency tracking, acquisition timing, AGC, rate matching. The embodiment of the present application is conducive to realizing the transmission / cancellation of the target reference signal resource, accelerating the activation of the target service cell, and improving the transmission efficiency or stability of the target service cell.

[0454] Optionally, as an embodiment, the target reference signal resource, the target TCI state, the target serving cell, and the first TCI state satisfy at least one of the following mapping relationships:

[0455] 1) One target reference signal resource corresponds to at least one target TCI state.

[0456] 2) One target reference signal resource corresponds to at least one target serving cell.

[0457] 3) One target TCI state corresponds to at least one target reference signal resource.

[0458] 4) One target TCI state corresponds to at least one target serving cell.

[0459] 5) One target serving cell corresponds to at least one target reference signal resource.

[0460] 6) One target serving cell corresponds to at least one target TCI state.

[0461] 7) One target reference signal resource corresponds to at least one first TCI state.

[0462] 8) One of the first TCI states corresponds to at least one of the target reference signal resources.

[0463] Optionally, as an embodiment, the first indication information is used by the terminal to determine activation or deactivation of at least one target reference signal resource, and the first indication information is carried in RRC signaling, and the RRC signaling may be at least one of the following:

[0464] 1) Sending RRC signaling of configuration information corresponding to the target reference signal resource.

[0465] 2) Sending RRC signaling of activation or deactivation indication information corresponding to the target reference signal resource.

[0466] 3) RRC signaling for configuring at least one of the target serving cells corresponding to the target reference signal resource to be in an activated state or a deactivated state.

[0467] 4) configuring RRC signaling that at least one target TCI state corresponding to the target reference signal resource is activated or deactivated.

[0468] 5) RRC signaling for configuring at least one serving cell associated with the target reference signal resource to be in an activated state or a deactivated state.

[0469] 6) configuring RRC signaling that the state of at least one first TCI corresponding to the target reference signal resource is an activated state or a deactivated state.

[0470] 7) Configuring RRC signaling of at least one serving cell associated with at least one of the first TCI states as an activated state or a deactivated state.

[0471] 8) RRC signaling configuring the bandwidth part BWP corresponding to the target reference signal resource to be in an activated state or a deactivated state.

[0472] Optionally, as an embodiment, the first indication information is used by the terminal to determine whether to activate or deactivate at least one of the target TCI states. The first indication information is carried in RRC signaling, and the RRC signaling may be at least one of the following:

[0473] 1) Sending RRC signaling of configuration information corresponding to the target TCI state.

[0474] 2) Sending RRC signaling of activation or deactivation indication information corresponding to the target TCI state.

[0475] 3) RRC signaling configuring at least one of the target reference signal resources corresponding to the target TCI state to be in an activated state or a deactivated state.

[0476] 4) Configuring RRC signaling of at least one of the target serving cells corresponding to the target TCI state as an activated state or a deactivated state.

[0477] 5) Configuring RRC signaling of at least one serving cell associated with at least one of the target TCI states to be in an activated state or a deactivated state.

[0478] 6) Configure the BWP corresponding to the target TCI state to be activated or deactivated RRC signaling.

[0479] Optionally, as an embodiment, the first indication information is carried in a first MAC CE signaling, and the first MAC CE signaling may be at least one of the following:

[0480] 1) Activate or deactivate MAC CE signaling of at least one of the target serving cells.

[0481] 2) Activate or deactivate MAC CE signaling of at least one serving cell associated with at least one of the target reference signal resources.

[0482] 3) Activate or deactivate MAC CE signaling of at least one serving cell associated with at least one of the target TCI states.

[0483] 4) Activate or deactivate MAC CE signaling of at least one of the first TCI states.

[0484] 5) Activate or deactivate MAC CE signaling of at least one serving cell associated with at least one of the first TCI states.

[0485] Optionally, as an embodiment, the first indication information is carried in second MAC CE signaling, and the second MAC CE signaling may include at least one of the following fields:

[0486] 1) A first length field, where the first length field is used to indicate the length of the second MAC CE signaling.

[0487] 2) A target reference signal resource indication field, wherein the target reference signal resource indication field is used to indicate first relevant information of at least one target reference signal resource.

[0488] 3) A target TCI state indication field, where the target TCI state indication field is used to indicate at least one second related information of the target TCI state.

[0489] 4) At least one target serving cell identification ID field, where the target serving cell ID field is used to indicate the ID of the target serving cell.

[0490] 5) A target serving cell bitmap field, wherein bits of a preset length in the target serving cell bitmap field are used to indicate third relevant information of the target serving cell corresponding to the bits.

[0491] 6) At least one BWP ID field, where the BWP ID field is used to indicate the uplink and / or downlink BWP corresponding to the target reference signal resource and / or the target TCI state.

[0492] 7) A first TCI state ID field, where the first TCI state ID field is used to indicate at least one ID of the first TCI state.

[0493] 8) A first TCI state bitmap field, wherein bits of a preset length in the first TCI state bitmap field are used to indicate fourth related information of the first TCI state corresponding to the bits.

[0494] According to the device 1500 of the embodiment of the present application, the process of the method 1300 corresponding to the embodiment of the present application can be referred to, and the various units / modules in the device 1500 and the above-mentioned other operations and / or functions are respectively for implementing the corresponding processes in the method 1300, and can achieve the same or equivalent technical effects. For the sake of brevity, they will not be repeated here.

[0495] Optional, such as Figure 16 As shown, an embodiment of the present application further provides a communication device 1600, including a processor 1601, a memory 1602, and a program or instruction stored in the memory 1602 and executable on the processor 1601. For example, when the communication device 1600 is a terminal, the program or instruction, when executed by the processor 1601, implements the various processes of the above-mentioned reference signal transmission method embodiment and can achieve the same technical effect. When the communication device 1600 is a network-side device, the program or instruction, when executed by the processor 1601, implements the various processes of the above-mentioned reference signal transmission method embodiment and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0496] An embodiment of the present application also provides a terminal, including a processor and a communication interface, the processor is used to determine at least one of the following based on the first indication information: activate or deactivate at least one target reference signal resource; activate or deactivate at least one target TCI state, the target TCI state is related to the target reference signal resource; wherein the target reference signal resource is used for at least one of the following processes of at least one target service cell: activation of the target service cell, activation of at least one first TCI state, CSI acquisition, acquisition of uplink channel information, CSI measurement, beam measurement, beam failure detection, RLM measurement, RRM measurement, cell search, time-frequency tracking, acquisition timing, AGC, rate matching; the communication interface is used to receive the first indication information. This terminal embodiment corresponds to the above-mentioned terminal side method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this terminal embodiment and can achieve the same technical effect. Specifically, Figure 17 A schematic diagram of the hardware structure of a terminal for implementing an embodiment of the present application.

[0497] The terminal 1700 includes but is not limited to: a radio frequency unit 1701, a network module 1702, an audio output unit 1703, an input unit 1704, a sensor 1705, a display unit 1706, a user input unit 1707, an interface unit 1708, a memory 1709, and at least some of the components of the processor 1710.

[0498] Those skilled in the art will understand that the terminal 1700 may also include a power supply (such as a battery) to power each component, and the power supply may be logically connected to the processor 1710 through a power management system, thereby implementing functions such as charging, discharging, and power consumption management through the power management system. Figure 17 The terminal structure shown in the figure does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be repeated here.

[0499] It should be understood that in an embodiment of the present application, the input unit 1704 may include a graphics processing unit (GPU) 17041 and a microphone 17042, and the graphics processor 17041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 1706 may include a display panel 17061, and the display panel 17061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 1707 includes a touch panel 17071 and other input devices 17072. The touch panel 17071 is also called a touch screen. The touch panel 17071 may include two parts: a touch detection device and a touch controller. Other input devices 17072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and an operating stick, which will not be repeated here.

[0500] In this embodiment of the present application, RF unit 1701 receives downlink data from a network-side device and transmits it to processor 1710 for processing. Furthermore, RF unit 1701 transmits uplink data to the network-side device. Typically, RF unit 1701 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, and the like.

[0501] The memory 1709 can be used to store software programs or instructions and various data. The memory 1709 may mainly include a program or instruction storage area and a data storage area, wherein the program or instruction storage area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 1709 may include a high-speed random access memory and may also include a non-volatile memory, wherein the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. For example, at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device.

[0502] Processor 1710 may include one or more processing units. Optionally, processor 1710 may integrate an application processor and a modem processor. The application processor primarily processes the operating system, user interface, and application programs or instructions, while the modem processor primarily processes wireless communications, such as a baseband processor. It is understood that the modem processor may not be integrated into processor 1710.

[0503] The radio frequency unit 1701 may be configured to receive first indication information.

[0504] Processor 1710 can be used to determine at least one of the following based on the first indication information: activate or deactivate at least one target reference signal resource; activate or deactivate at least one target TCI state, and the target TCI state is related to the target reference signal resource; wherein the target reference signal resource is used for at least one of the following processes of at least one target service cell: activation of the target service cell, activation of at least one first TCI state, CSI acquisition, acquisition of uplink channel information, CSI measurement, beam measurement, beam failure detection, RLM measurement, RRM measurement, cell search, time-frequency tracking, acquisition timing, AGC, and rate matching.

[0505] In an embodiment of the present application, the terminal determines at least one of the following based on the received first indication information: activate or deactivate at least one target reference signal resource; activate or deactivate at least one target TCI state related to the target reference signal resource; wherein the target reference signal resource can be used for at least one of the following processes of at least one target service cell: activation of the target service cell, activation of at least one first TCI state, CSI acquisition, acquisition of uplink channel information, CSI measurement, beam measurement, beam failure detection, RLM measurement, RRM measurement, cell search, time-frequency tracking, acquisition timing, AGC, rate matching. The embodiment of the present application is conducive to realizing the transmission / cancellation of the target reference signal resource, accelerating the activation of the target service cell, and improving the transmission efficiency or stability of the target service cell.

[0506] The terminal 1700 provided in the embodiment of the present application can also implement the various processes of the above-mentioned reference signal transmission method embodiment and achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0507] An embodiment of the present application also provides a network side device, including a processor and a communication interface, the communication interface is used to send a first indication information, the first indication information is used by the terminal to determine at least one of the following: activation or deactivation of at least one target reference signal resource; activation or deactivation of at least one target TCI state, the target TCI state is related to the target reference signal resource; wherein the target reference signal resource is used for at least one of the following processes of at least one target service cell: activation of the target service cell, activation of at least one first TCI state, CSI acquisition, acquisition of uplink channel information, CSI measurement, beam measurement, beam failure detection, RLM measurement, RRM measurement, cell search, time-frequency tracking, acquisition timing, AGC, rate matching. This network side device embodiment corresponds to the above-mentioned network side device method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this network side device embodiment and can achieve the same technical effect.

[0508] Specifically, the embodiment of the present application also provides a network side device. Figure 18 As shown, network-side device 1800 includes an antenna 181, a radio frequency device 182, and a baseband device 183. Antenna 181 is connected to radio frequency device 182. In the uplink direction, radio frequency device 182 receives information via antenna 181 and sends the received information to baseband device 183 for processing. In the downlink direction, baseband device 183 processes the information to be transmitted and sends it to radio frequency device 182. Radio frequency device 182 processes the received information and then sends it through antenna 181.

[0509] The frequency band processing device may be located in the baseband device 183 . The method executed by the network-side device in the above embodiment may be implemented in the baseband device 183 . The baseband device 183 includes a processor 184 and a memory 185 .

[0510] The baseband device 183 may include, for example, at least one baseband board on which a plurality of chips are arranged, such as Figure 18 As shown, one of the chips is, for example, a processor 184, which is connected to a memory 185 to call a program in the memory 185 and execute the network-side device operations shown in the above method embodiment.

[0511] The baseband device 183 may further include a network interface 186 for exchanging information with the radio frequency device 182 . The interface may be, for example, a common public radio interface (CPRI).

[0512] Specifically, the network side device of the embodiment of the present application further includes: instructions or programs stored in the memory 185 and executable on the processor 184, and the processor 184 calls the instructions or programs in the memory 185 to execute. Figure 15 The methods executed by the modules shown achieve the same technical effects, so they will not be described here to avoid repetition.

[0513] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned reference signal transmission method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0514] The processor may be the processor in the terminal described in the above embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0515] The embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the above xxx The various processes of the method embodiments can achieve the same technical effects, and to avoid repetition, they will not be described here.

[0516] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0517] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0518] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus the necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a number of instructions for enabling a terminal (which can be a mobile phone, computer, server, air conditioner, or network-side device, etc.) to execute the methods described in each embodiment of the present application.

[0519] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A method for transmitting a reference signal, characterized in that: include: The terminal receives a second media access control element MAC CE signaling, where the second MAC CE signaling includes: At least one target reference signal resource ID field, where the target reference signal resource ID field is used to indicate the ID of the activated target reference signal resource; A target serving cell bitmap field, wherein bits of a preset length in the target serving cell bitmap field are used to indicate whether a target state of the target serving cell corresponding to the bit and the target reference signal resource ID field corresponding to the target serving cell appear, wherein the target state includes an activated state or a deactivated state; Determine according to the second MAC CE signaling: activating at least one target transmission configuration indication (TCI) state, where the target TCI state is associated with a target reference signal resource; The target reference signal resource is used for at least one of the following processes of at least one target serving cell: activation of the target serving cell and time-frequency tracking.

2. The method according to claim 1, characterized in that The target reference signal resource, the target TCI state, and the target serving cell satisfy at least one of the following mapping relationships: One target reference signal resource corresponds to at least one target TCI state; One target reference signal resource corresponds to at least one target serving cell; One target TCI state corresponds to at least one target reference signal resource; One target TCI state corresponds to at least one target serving cell; One target serving cell corresponds to at least one target reference signal resource; One target serving cell corresponds to at least one target TCI state.

3. The method according to claim 1, characterized in that The second MAC CE signaling further includes at least one of the following fields: a first length field, where the first length field is used to indicate the length of the second MAC CE signaling; a target reference signal resource indication field, where the target reference signal resource indication field is used to indicate first relevant information of at least one target reference signal resource; a target TCI state indication field, where the target TCI state indication field is used to indicate at least one second related information of the target TCI state; At least one target serving cell identification ID field, where the target serving cell identification ID field is used to indicate the ID of the target serving cell; At least one BWP ID field, where the BWP ID field is used to indicate the uplink and / or downlink BWP corresponding to the target reference signal resource and / or the target TCI state.

4. The method according to any one of claims 1 to 3, characterized in that The method further comprises: The terminal determines at least one of the following according to the second MAC CE signaling: activating at least one target reference signal resource; Activate or deactivate at least one of the target serving cells.

5. The method according to claim 3, characterized in that The method further comprises: Activate the BWP indicated by the BWP ID field.

6. The method according to claim 3, characterized in that The target reference signal resource indication field includes at least one of the following fields: a second length field, where the second length field is used to indicate the length of the target reference signal resource indication field; a target reference signal resource destination field, where the target reference signal resource destination field is used to indicate the purpose or use of the activated or deactivated target reference signal resource; at least one first activation state field, where the first activation state field is used to indicate activation or deactivation of at least one target reference signal resource; a target reference signal resource bitmap field, wherein bits of a preset length in the target reference signal resource bitmap field are used to indicate fifth relevant information of at least one target reference signal resource; a repetition field, where the repetition field is used to indicate whether the number of transmissions of the activated target reference signal resource is greater than 1; a repetition number of transmissions field, where the repetition number of transmissions field is used to indicate the number of transmissions of the activated target reference signal resource; a target reference signal resource time domain offset field, where the target reference signal resource time domain offset field is used to indicate a time domain offset associated with the activated first reference signal; The target reference signal resource quantity field is used to indicate the quantity of the target reference signal resources that are activated or deactivated.

7. The method according to claim 3, characterized in that The target TCI status indication field includes at least one of the following fields: A third length field, where the third length field is used to indicate the length of the target TCI status indication field; a second activation state field, where the second activation state field is used to indicate activation or deactivation of at least one of the target TCI states; Target TCI state ID field, where the target TCI state ID field is used to indicate the ID of the target TCI state to be activated or deactivated; A target TCI state bitmap field, wherein bits of a preset length in the target TCI state bitmap field are used to indicate a target state of the target TCI state corresponding to the bit, wherein the target state includes an activated state or a deactivated state; Second TCI status ID i,j Field, the second TCI status ID i,j The field is used to indicate the ID of the jth target TCI state of the i-th code point in the downlink control information DCI transmission configuration indication field that is activated or deactivated; A first resource ID field, where the first resource ID field is used to indicate a resource ID of a first resource, where the first resource is used to provide a quasi-co-located QCL source of the target reference signal resource; A first resource service small area, where the first resource service small area is used to indicate a serving cell where the first resource is located; A first resource BWP ID field, where the first resource BWP ID field is used to indicate the BWP corresponding to the first resource or the serving cell where the first resource is located; A non-periodic trigger state bitmap field, wherein the bits of a preset length in the non-periodic trigger state bitmap field are used to indicate the selection state of the non-periodic trigger state corresponding to the bit.

8. The method according to claim 3, characterized in that The bits of the preset length in the target serving cell bitmap field are further used to indicate third relevant information of the target serving cell corresponding to the bits, where the third relevant information includes at least one of the following: Whether the target reference signal resource indication field corresponding to the target serving cell appears; Whether the target TCI status indication field corresponding to the target serving cell appears; Whether the BWP ID field corresponding to the target serving cell appears.

9. The method according to claim 6, characterized in that The fifth relevant information includes at least one of the following: a target state of the target reference signal, the target state including an activated state or a deactivated state; Whether the target TCI status indication field corresponding to the target reference signal appears.

10. The method according to claim 1, characterized in that Before the terminal receives the second MAC CE signaling, the method further includes: the terminal receiving first configuration information; wherein the first configuration information includes at least one of the following: Configuration information of the target reference signal resource; Configuration information of the target TCI state.

11. The method according to claim 10, characterized in that The target reference signal resource includes at least one of the following: one or more target reference signals; one or more target reference signal sets; A list of one or more target reference signal sets.

12. The method according to claim 10, characterized in that The first configuration information includes at least one of the following: The absolute time domain position or interval where the target reference signal resource appears; quantity information of the target reference signal resources; First time domain offset information, where the first time domain offset information is used to indicate a time domain offset between a first time domain position and a time domain position for sending the target reference signal resource; Second time domain offset information, where the second time domain offset information is used to indicate a time domain offset within a time unit for transmitting the target reference signal resource; The number of transmissions and time domain period information of the target reference signal resource; activation or deactivation indication information of the target reference signal resource; The ID of the target reference signal resource to be activated or deactivated; information on the purpose or usage of the target reference signal resource; a time domain offset between the target reference signal resources for different measurement purposes; activation or deactivation indication information of the target TCI state; The ID of the target TCI state that needs to be activated or deactivated.

13. The method according to claim 11, wherein The target reference signal resource includes a TRS resource.

14. The method according to claim 11, wherein The target reference signal includes a TRS, or the target reference signal set includes a TRS resource set.

15. The method according to claim 14, wherein Each TRS is identified by a TRS ID, or each TRS resource set is identified by a TRS resource set ID.

16. The method according to claim 13, wherein: The first configuration information also includes QCL information, where the QCL information is used to indicate at least one TCI state corresponding to the TRS resource or TRS resource set.

17. The method according to claim 16, wherein The terminal receiving the first configuration information includes: receiving the first configuration information through RRC.

18. A method for transmitting a reference signal, characterized in that: include: The network-side device sends a second media access control element MAC CE signaling, where the second MAC CE signaling includes: At least one target reference signal resource ID field, where the target reference signal resource ID field is used to indicate the ID of the activated target reference signal resource; A target serving cell bitmap field, wherein bits of a preset length in the target serving cell bitmap field are used to indicate whether a target state of the target serving cell corresponding to the bit and the target reference signal resource ID field corresponding to the target serving cell appear, wherein the target state includes an activated state or a deactivated state; The second MAC CE signaling is used by the terminal to determine: activating at least one target transmission configuration indication (TCI) state, where the target TCI state is associated with a target reference signal resource; The target reference signal resource is used for at least one of the following processes of at least one target serving cell: activation of the target serving cell and time-frequency tracking.

19. The method according to claim 18, characterized in that The target reference signal resource, the target TCI state, and the target serving cell satisfy at least one of the following mapping relationships: One target reference signal resource corresponds to at least one target TCI state; One target reference signal resource corresponds to at least one target serving cell; One target TCI state corresponds to at least one target reference signal resource; One target TCI state corresponds to at least one target serving cell; One target serving cell corresponds to at least one target reference signal resource; One target serving cell corresponds to at least one target TCI state.

20. The method according to claim 18, wherein The second MAC CE signaling further includes at least one of the following fields: a first length field, where the first length field is used to indicate the length of the second MAC CE signaling; a target reference signal resource indication field, where the target reference signal resource indication field is used to indicate first relevant information of at least one target reference signal resource; a target TCI state indication field, where the target TCI state indication field is used to indicate at least one second related information of the target TCI state; At least one target serving cell identification ID field, where the target serving cell identification ID field is used to indicate the ID of the target serving cell; At least one BWP ID field, where the BWP ID field is used to indicate the uplink and / or downlink BWP corresponding to the target reference signal resource and / or the target TCI state.

21. The method according to any one of claims 18 to 20, characterized in that The second MAC CE signaling is further used by the terminal to determine at least one of the following: activating or deactivating at least one of the target serving cells; At least one target reference signal resource is activated.

22. The method according to claim 20, characterized in that The second MAC CE signaling is further used by the terminal to determine: Activate the BWP indicated by the BWP ID field.

23. The method according to claim 20, characterized in that The target reference signal resource indication field includes at least one of the following fields: a second length field, where the second length field is used to indicate the length of the target reference signal resource indication field; a target reference signal resource destination field, where the target reference signal resource destination field is used to indicate the purpose or use of the activated or deactivated target reference signal resource; at least one first activation state field, where the first activation state field is used to indicate activation or deactivation of at least one target reference signal resource; a target reference signal resource bitmap field, wherein bits of a preset length in the target reference signal resource bitmap field are used to indicate fifth relevant information of at least one target reference signal resource; a repetition field, where the repetition field is used to indicate whether the number of transmissions of the activated target reference signal resource is greater than 1; a repetition number of transmissions field, where the repetition number of transmissions field is used to indicate the number of transmissions of the activated target reference signal resource; a target reference signal resource time domain offset field, where the target reference signal resource time domain offset field is used to indicate a time domain offset associated with the activated first reference signal; The target reference signal resource quantity field is used to indicate the quantity of the target reference signal resources that are activated or deactivated.

24. The method according to claim 20, characterized in that The target TCI status indication field includes at least one of the following fields: A third length field, where the third length field is used to indicate the length of the target TCI status indication field; a second activation state field, where the second activation state field is used to indicate activation or deactivation of at least one of the target TCI states; Target TCI state ID field, where the target TCI state ID field is used to indicate the ID of the target TCI state to be activated or deactivated; A target TCI state bitmap field, wherein bits of a preset length in the target TCI state bitmap field are used to indicate a target state of the target TCI state corresponding to the bit, wherein the target state includes an activated state or a deactivated state; Second TCI status ID i,j Field, the second TCI status ID i,j The field is used to indicate the ID of the jth target TCI state of the i-th code point in the downlink control information DCI transmission configuration indication field that is activated or deactivated; A first resource ID field, where the first resource ID field is used to indicate a resource ID of a first resource, where the first resource is used to provide a quasi-co-located QCL source of the target reference signal resource; A first resource service small area, where the first resource service small area is used to indicate a serving cell where the first resource is located; A first resource BWPID field, where the first resource BWPID field is used to indicate the BWP corresponding to the first resource or the serving cell where the first resource is located; A non-periodic trigger state bitmap field, wherein the bits of a preset length in the non-periodic trigger state bitmap field are used to indicate the selection state of the non-periodic trigger state corresponding to the bit.

25. The method according to claim 20, wherein The bits of the preset length in the target serving cell bitmap field are further used to indicate third relevant information of the target serving cell corresponding to the bits; the third relevant information includes at least one of the following: Whether the target reference signal resource indication field corresponding to the target serving cell appears; Whether the target TCI status indication field corresponding to the target serving cell appears; Whether the BWP ID field corresponding to the target serving cell appears.

26. The method according to claim 23, wherein The fifth relevant information includes at least one of the following: a target state of the target reference signal, the target state including an activated state or a deactivated state; Whether the target TCI status indication field corresponding to the target reference signal appears.

27. The method according to claim 18, wherein Before the network-side device sends the second MAC CE signaling, the method further includes: the network-side device sending first configuration information; wherein the first configuration information includes at least one of the following: Configuration information of the target reference signal resource; Configuration information of the target TCI state.

28. The method according to claim 27, characterized in that The target reference signal resource includes at least one of the following: one or more target reference signals; one or more target reference signal sets; A list of one or more target reference signal sets.

29. The method according to claim 27, characterized in that The first configuration information includes at least one of the following: The absolute time domain position or interval where the target reference signal resource appears; quantity information of the target reference signal resources; First time domain offset information, where the first time domain offset information is used to indicate a time domain offset between a first time domain position and a time domain position for sending the target reference signal resource; Second time domain offset information, where the second time domain offset information is used to indicate a time domain offset within a time unit for transmitting the target reference signal resource; The number of transmissions and time domain period information of the target reference signal resource; activation or deactivation indication information of the target reference signal resource; The ID of the target reference signal resource to be activated or deactivated; information on the purpose or usage of the target reference signal resource; a time domain offset between the target reference signal resources for different measurement purposes; activation or deactivation indication information of the target TCI state; The ID of the target TCI state that needs to be activated or deactivated.

30. The method of claim 28, wherein The target reference signal resource includes a TRS resource.

31. The method of claim 28, wherein The target reference signal includes a TRS, or the target reference signal set includes a TRS resource set.

32. The method according to claim 31, wherein Each TRS is identified by a TRS ID, or each TRS resource set is identified by a TRS resource set ID.

33. The method according to claim 30, wherein The first configuration information also includes QCL information, where the QCL information is used to indicate at least one TCI state corresponding to the TRS resource or TRS resource set.

34. The method according to claim 33, wherein The network side device sending the first configuration information includes: sending the first configuration information through RRC.

35. A reference signal transmission device, characterized in that: include: A receiving module, configured to receive a second media access control unit MAC CE signaling, where the second MAC CE signaling includes: At least one target reference signal resource ID field, where the target reference signal resource ID field is used to indicate the ID of the activated target reference signal resource; A target serving cell bitmap field, wherein bits of a preset length in the target serving cell bitmap field are used to indicate whether a target state of the target serving cell corresponding to the bit and the target reference signal resource ID field corresponding to the target serving cell appear, wherein the target state includes an activated state or a deactivated state; A determining module, configured to determine, according to the second MAC CE signaling: activating at least one target TCI state, where the target TCI state is associated with a target reference signal resource; The target reference signal resource is used for at least one of the following processes of at least one target serving cell: activation of the target serving cell and time-frequency tracking.

36. The device according to claim 35, characterized in that The target reference signal resource, the target TCI state, and the target serving cell satisfy at least one of the following mapping relationships: One target reference signal resource corresponds to at least one target TCI state; One target reference signal resource corresponds to at least one target serving cell; One target TCI state corresponds to at least one target reference signal resource; One target TCI state corresponds to at least one target serving cell; One target serving cell corresponds to at least one target reference signal resource; One target serving cell corresponds to at least one target TCI state.

37. The device according to claim 35, characterized in that The second MAC CE signaling further includes at least one of the following fields: a first length field, where the first length field is used to indicate the length of the second MAC CE signaling; a target reference signal resource indication field, where the target reference signal resource indication field is used to indicate first relevant information of at least one target reference signal resource; a target TCI state indication field, where the target TCI state indication field is used to indicate at least one second related information of the target TCI state; At least one target serving cell identification ID field, where the target serving cell identification ID field is used to indicate the ID of the target serving cell; At least one BWP ID field, where the BWP ID field is used to indicate the uplink and / or downlink BWP corresponding to the target reference signal resource and / or the target TCI state.

38. A reference signal transmission device, characterized in that: include: A sending module, configured to send a second media access control element MAC CE signaling, where the second MAC CE signaling includes: At least one target reference signal resource ID field, where the target reference signal resource ID field is used to indicate the ID of the activated target reference signal resource; A target serving cell bitmap field, wherein bits of a preset length in the target serving cell bitmap field are used to indicate whether a target state of the target serving cell corresponding to the bit and the target reference signal resource ID field corresponding to the target serving cell appear, wherein the target state includes an activated state or a deactivated state; The second MAC CE signaling is used by the terminal to determine: activating at least one target TCI state, where the target TCI state is associated with a target reference signal resource; The target reference signal resource is used for the following processes of at least one target serving cell: activation and time-frequency tracking of the target serving cell.

39. The device according to claim 38, characterized in that The target reference signal resource, the target TCI state, and the target serving cell satisfy at least one of the following mapping relationships: One target reference signal resource corresponds to at least one target TCI state; One target reference signal resource corresponds to at least one target serving cell; One target TCI state corresponds to at least one target reference signal resource; One target TCI state corresponds to at least one target serving cell; One target serving cell corresponds to at least one target reference signal resource and one target serving cell corresponds to at least one target TCI state.

40. The device according to claim 38, wherein The second MAC CE signaling further includes at least one of the following fields: a first length field, where the first length field is used to indicate the length of the second MAC CE signaling; a target reference signal resource indication field, where the target reference signal resource indication field is used to indicate first relevant information of at least one target reference signal resource; a target TCI state indication field, where the target TCI state indication field is used to indicate at least one second related information of the target TCI state; At least one target serving cell identification ID field, where the target serving cell identification ID field is used to indicate the ID of the target serving cell; At least one BWP ID field, where the BWP ID field is used to indicate the uplink and / or downlink BWP corresponding to the target reference signal resource and / or the target TCI state.

41. A terminal, characterized in that: The method comprises a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the reference signal transmission method according to any one of claims 1 to 17.

42. A network side device, characterized in that: The method comprises a processor, a memory, and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the reference signal transmission method according to any one of claims 18 to 34.

43. A readable storage medium, characterized in that The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, the method for transmitting a reference signal according to any one of claims 1 to 17 is implemented, or the method for transmitting a reference signal according to any one of claims 18 to 34 is implemented.

Images