Reference signal transmission method and device

Abstract

The present application discloses a method and device for transmitting a reference signal, which belongs to the technical field of communication. The method for transmitting a reference signal of the present application includes a step of a terminal receiving first indication information, and a step of determining, according to the first indication information, at least one of activating or deactivating at least one target reference signal resource, and activating or deactivating at least one target TCI state associated with the target reference signal resource, where the target reference signal resource is used for at least one of the processes of at least one target serving cell, such as activating a target serving cell, activating at least one first TCI state, CSI acquisition, uplink channel information acquisition, CSI measurement, beam measurement, beam failure detection, RLM measurement, RRM measurement, cell search, time-frequency tracking, timing acquisition, AGC, and rate matching.

Description

[Technical field]

[0001] (CROSS REFERENCE TO RELATED APPLICATIONS) The present invention claims priority to a Chinese patent application filed with the China Patent Office on June 25, 2021, bearing application number 202110713239.3 and entitled "Reference signal transmission method and apparatus", the entire contents of which are incorporated herein by reference.

[0002] The present application relates to the technical field of communications, and in particular to a method and device for transmitting a reference signal. [Background technology]

[0003] When a terminal receives a secondary cell (SCell) activation command, during the SCell activation process, the terminal generally needs to perform automatic gain control and time-frequency synchronization on the downlink channel of the SCell according to a tracking reference signal transmitted by a network side device. The tracking reference signal is periodically transmitted by the network side device, which may result in a large SCell activation delay or excessive signaling overhead. For example, if the period of the tracking reference signal is too long, the terminal is likely to miss the tracking reference signal when receiving the SCell activation command, and therefore needs to wait until the next tracking reference signal period, which increases the SCell activation delay, and furthermore, for example, shortening the transmission period of the tracking reference signal may result in even larger signaling overhead.

[0004] In view of this, in the related art, studies have been made on solving the above problem by introducing a new reference signal resource, for example, using a temporary reference signal resource in the SCell activation process to perform automatic gain control and time-frequency synchronization, etc., to accelerate the completion of SCell activation. However, when a new reference signal resource is introduced, how to transmit the reference signal resource remains an unsolved technical problem. Summary of the Invention [Problem to be solved by the invention]

[0005] The embodiments of the present application provide a reference signal transmission method and device, which can solve the problem of how to realize the transmission of reference signal resources. [Means for solving the problem]

[0006] In a first aspect, a method for transmitting a reference signal is provided, the method including a step of a terminal receiving first instruction information, and a step of determining, based on the first instruction information, at least one of activating or deactivating at least one target reference signal resource and activating or deactivating at least one target TCI state associated with the target reference signal resource, wherein the target reference signal resource is used for at least one of the processes of at least one target serving cell, such as activating a target serving cell, activating at least one first TCI state, CSI acquisition, acquiring uplink channel information, CSI measurement, beam measurement, beam failure detection, RLM measurement, RRM measurement, cell search, time-frequency tracking, timing acquisition, AGC, and rate matching.

[0007] In a second aspect, a method for transmitting a reference signal is provided, the method including a step of a network side device transmitting first instruction information, the first instruction information being used by a terminal to determine at least one of activating or deactivating at least one target reference signal resource, and activating or deactivating at least one target TCI state associated with the target reference signal resource, the target reference signal resource being used for at least one of the processes of at least one target serving cell, such as activating a target serving cell, activating 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, timing acquisition, AGC, and rate matching.

[0008] In a third aspect, a reference signal transmission device is provided, comprising: a receiving module used for receiving first instruction information; and a decision module used for determining, based on the first instruction information, at least one of activating or deactivating at least one target reference signal resource and activating or deactivating at least one target TCI state associated with the target reference signal resource, wherein the target reference signal resource is used for at least one of the processes of at least one target serving cell, such as activating a target serving cell, activating at least one first TCI state, CSI acquisition, acquiring uplink channel information, CSI measurement, beam measurement, beam failure detection, RLM measurement, RRM measurement, cell search, time-frequency tracking, timing acquisition, AGC, and rate matching.

[0009] In a fourth aspect, a reference signal transmission device is provided, comprising a transmission module used for transmitting first instruction information, the first instruction information being used by a terminal to determine at least one of activating or deactivating at least one target reference signal resource, and activating or deactivating at least one target TCI state associated with the target reference signal resource, and the target reference signal resource being used for at least one of the processes of at least one target serving cell, such as activating a target serving cell, activating at least one first TCI state, CSI acquisition, acquiring uplink channel information, CSI measurement, beam measurement, beam failure detection, RLM measurement, RRM measurement, cell search, time-frequency tracking, timing acquisition, AGC, and rate matching.

[0010] In a fifth aspect, there is provided a terminal comprising a processor, a memory, and a program or command stored in the memory and executable by the processor, the program or command realising a method according to the first aspect when executed by the processor.

[0011] In a sixth aspect, there is provided a terminal including a processor and a communication interface, wherein the processor is used to determine at least one of activating or deactivating at least one target reference signal resource and activating or deactivating at least one target TCI state associated with the target reference signal resource according to first indication information, the target reference signal resource is used for at least one of the processes of a target serving cell, such as activation of the target serving cell, activation of at least one first TCI state, CSI acquisition, uplink channel information acquisition, CSI measurement, beam measurement, beam obstacle detection, RLM measurement, RRM measurement, cell search, time-frequency tracking, timing acquisition, AGC, and rate matching, and the communication interface is used to receive the first indication information.

[0012] In a seventh aspect, there is provided a network-side device including a processor, a memory, and a program or command stored in the memory and executable by the processor. When the program or command is executed by the processor, the method according to the second aspect is implemented.

[0013] In an eighth aspect, there is provided a network-side device including a processor and a communication interface, wherein the communication interface is used to transmit first indication information, and the first indication information is used for a terminal to determine at least one of activating or deactivating at least one target reference signal resource and activating or deactivating at least one target TCI state associated with the target reference signal resource. The target reference signal resource is used for at least one of the processes of a target serving cell, such as activation of the target serving cell, activation of at least one first TCI state, CSI acquisition, uplink channel information acquisition, CSI measurement, beam measurement, beam obstacle detection, RLM measurement, RRM measurement, cell search, time-frequency tracking, timing acquisition, AGC, and rate matching.

[0014] In a ninth aspect, there is provided a readable storage medium storing a program or commands which, when executed by a processor, effectuates the method according to the first aspect or effectuates the method according to the second aspect.

[0015] In a tenth aspect, there is provided a chip comprising a processor and a communications interface, the communications interface and the processor being coupled to execute a program or command to implement the method according to the first aspect or to implement the method according to the second aspect.

[0016] In an eleventh aspect, there is provided a computer program / program product stored on a non-transitory storage medium, the computer program / program product being configured to execute, when executed by at least one processor, a method according to the first aspect or to execute, when executed by at least one processor, a method according to the second aspect. Effect of the Invention

[0017] In an embodiment of the present application, the terminal determines, according to the received first indication information, at least one of activating or deactivating at least one target reference signal resource, and activating or deactivating at least one target TCI state associated with the target reference signal resource, where the target reference signal resource is used for at least one of the processes of the at least one target serving cell, such as activating the target serving cell, activating at least one first TCI state, CSI acquisition, uplink channel information acquisition, CSI measurement, beam measurement, beam failure detection, RLM measurement, RRM measurement, cell search, time-frequency tracking, timing acquisition, AGC, and rate matching. The embodiment of the present application is advantageous for realizing transmission / transmission cancellation of the target reference signal resource, advantageous for accelerating the activation of the target serving cell, and advantageous for improving the transmission efficiency or stability of the target serving cell. [Brief description of the drawings]

[0018] [Figure 1] 1 is a schematic diagram of a wireless communication system according to an embodiment of the present application; [Diagram 2] 2 is a schematic flow chart of a method for transmitting a reference signal according to an embodiment of the present application; [Diagram 3] FIG. 2 is a schematic diagram of a MAC CE signaling format according to an embodiment of the present application. [Figure 4] FIG. 2 is a schematic diagram of a MAC CE signaling format according to an embodiment of the present application. [Diagram 5] FIG. 2 is a schematic diagram of a MAC CE signaling format according to an embodiment of the present application. [Figure 6] FIG. 2 is a schematic diagram of a MAC CE signaling format according to an embodiment of the present application. [Figure 7] FIG. 2 is a schematic diagram of a MAC CE signaling format according to an embodiment of the present application. [Figure 8] FIG. 2 is a schematic diagram of a MAC CE signaling format according to an embodiment of the present application. [Figure 9] FIG. 2 is a schematic diagram of a MAC CE signaling format according to an embodiment of the present application. [Figure 10] FIG. 2 is a schematic diagram of a MAC CE signaling format according to an embodiment of the present application. [Figure 11] FIG. 2 is a schematic diagram of a MAC CE signaling format according to an embodiment of the present application. [Figure 12] FIG. 2 is a schematic diagram of a MAC CE signaling format according to an embodiment of the present application. [Figure 13] 2 is a schematic flow chart of a method for transmitting a reference signal according to an embodiment of the present application; [Figure 14] 1 is a schematic diagram illustrating the configuration of a reference signal transmission device according to an embodiment of the present application. [Figure 15] 1 is a schematic diagram illustrating the configuration of a reference signal transmission device according to an embodiment of the present application. [Figure 16] 1 is a schematic diagram illustrating the configuration of a communication device according to an embodiment of the present application. [Figure 17] FIG. 2 is a schematic diagram of the configuration of a terminal according to an embodiment of the present application. [Figure 18] FIG. 2 is a schematic diagram illustrating the configuration of a network side device according to an embodiment of the present application. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] Hereinafter, the technical solutions in the embodiments of the present application will be clearly described with reference to the drawings in the embodiments of the present application, and it is to be understood that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art shall fall within the scope of protection of the present application.

[0020] The terms "first", "second", etc. in the specification and claims of this application are not intended to describe a particular order or sequence, but are intended to distinguish between similar objects. It should be understood that the terms used in this manner may be substituted for each other where appropriate, so that the embodiments of this application may be performed in an order other than that shown or described herein, and the objects distinguished by "first" and "second" are generally of one type, and the number of objects is not limited, for example, the first object may be one or more. In the specification and claims, "and / or" indicates at least one of the objects connected, and the symbol " / " generally indicates that the related objects before and after are in an "or" relationship.

[0021] It should be noted that the technology described in the embodiments of the present application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, and can 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 can generally be used interchangeably, and the technology described can be used in the above-mentioned systems and wireless technologies, or in other systems and wireless technologies. However, in the following description, a New Radio (NR) system is described for illustrative purposes, and NR terminology is used in most of the following description, but these technologies can be applied to systems other than NR systems, for example, 6th generation (6 th It is also applicable to 6G (Generation, 6G) communication systems.

[0022] FIG. 1 shows a schematic diagram of a wireless communication system applicable to the embodiment of the present application. The wireless communication system includes a terminal 11 and a network side device 12. Here, the terminal 11 may be called a terminal device or a user terminal (User Equipment, UE), and may be a terminal side device such as a mobile phone, a tablet computer, a laptop computer also called a notebook computer, a personal digital assistant (PDA), a personal digital assistant, a netbook, an ultra-mobile personal computer (UMPC), a mobile Internet device (MID), a wearable device, a vehicle-mounted device (VUE), a pedestrian terminal (PUE), etc., and the wearable device includes a smart watch, a bracelet, an earphone, a pair of glasses, etc. It is necessary to explain that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may be a base station or a core network, in which the base station may be called a Node B, an evolved Node B, an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an 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 receiving point (TRP), or any other suitable term in the above field, and as long as the same technical effect can be achieved, the base station is not limited to a specific technical term. In the embodiments of the present application, only a base station in an NR system is taken as an example, but it should be noted that the specific type of the base station is not limited.

[0023] Hereinafter, the reference signal transmission method and device provided in the embodiments of the present application will be described in detail with reference to the drawings according to several embodiments and use cases thereof.

[0024] As shown in FIG. 2, an embodiment of the present application provides a reference signal transmission method 200, which can be performed by a terminal, in other words, the method can be performed by software or hardware implemented in the terminal, and the method includes the following steps S202 and S204.

[0025] S202: The terminal receives first indication information.

[0026] In this embodiment, the first indication information may be transmitted in at least one of Radio Resource Control (RRC) signaling, Media Access Control-Control Element (MAC CE) signaling, and Downlink Control Information (DCI) signaling, etc.

[0027] The first indication information is used to activate or deactivate a target reference signal resource (also referred to as triggering or not triggering reception of the target reference signal) and / or to activate or deactivate a target Transmission Configuration Indicator (TCI) state associated with the target reference signal resource.

[0028] In one embodiment, the first indication information may explicitly indicate whether to trigger reception of the target reference signal (resource), or it may mean that the terminal triggers reception of the target reference signal when it receives the first indication information, and does not trigger reception of the target reference signal when it does not receive the first indication information.

[0029] Of course, the first indication information may simultaneously have other uses, such as, for example, activating a target serving cell. In one example, the first indication information may be a target serving cell activation signaling, which can be used to activate a target serving cell, and at the same time, is further used to activate a target reference signal resource transmitted by the target serving cell and a target TCI state associated with the target reference signal resource.

[0030] In the embodiments of the present application, the target reference signal resource is associated with a target TCI state, which may specifically refer to the terminal being able to receive or transmit the target reference signal resource according to the spatial related information indicated in the target TCI state, for example, the terminal determines a beam to be used for receiving the target reference signal resource according to the spatial related information indicated in the target TCI state.

[0031] The target reference signal resource may include at least one reference signal or may include at least one reference signal in at least one reference signal set.

[0032] S204: According to the first indication information, determine at least one of activating or deactivating at least one target reference signal resource, and activating or deactivating at least one target TCI state associated with the target reference signal resource.

[0033] Here, the target reference signal resource is used for at least one of the processes of at least one target serving cell, such as activating a target serving cell, activating at least one first TCI state, acquiring Channel State Information (CSI), acquiring uplink channel information, CSI measurement, beam measurement, beam failure detection, Radio Link Monitor (RLM) measurement, Radio Resource Management (RRM) measurement, cell search, time-frequency tracking, timing acquisition, Automatic Gain Control (AGC), and rate matching.

[0034] The target reference signal resource described in each embodiment of the present application may be a temporary reference signal (TRS), a reference signal for fast activation of a secondary cell (RS), etc.

[0035] In addition, the target reference signal may be one kind 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 channel state information acquisition, or a reference signal (RS) for timing acquisition, or a synchronization signal / physical broadcast channel signal block / synchronization signal block (SSB), periodic RS, or aperiodic RS, or may be other RS. The target reference signal may also be a combination of multiple kinds of reference signals. For example, the target reference signal is a combination of CSI-RS, SSB, and TRS, so that the target reference signal can realize the search for the target serving cell and the activation of the target serving cell in one step. For example, the target reference signal is a combination of TRS and a sounding reference signal (SRS), so that the target reference signal can realize the activation of uplink and downlink transmission simultaneously.

[0036] The first TCI state may include a TCI state of a Physical Downlink Control Channel (PDCCH), a TCI state of a Physical Downlink Shared Channel (PDSCH), and a TCI state of a semi-persistent CSI-RS resource set (or Quasi-Co-Location (QCL) information). When the network side sends a command to activate the first TCI state, it may be necessary to receive a reference signal (e.g., SSB) during the first TCI state activation process, and configuring and activating the target reference signal on the network side helps to accelerate the first TCI state activation process.

[0037] In this step, the terminal determines at least one of activating or deactivating the target reference signal resource and activating or deactivating the target TCI state according to the first instruction information. If it is determined to activate the target reference signal resource, the terminal can further transmit or receive the target reference signal resource after S204, and if it is determined to activate the target reference signal resource and activate the target TCI state, the terminal can further transmit or receive the target reference signal resource according to spatial related information (e.g., beam, etc.) indicated in the target TCI state after S204.

[0038] In one example, before S204, at least one target serving cell is in a deactivated state, and the target reference signal resource can be used for fast activation of the at least one target serving cell, for example, the terminal can perform operations such as time-frequency tracking, timing acquisition, AGC, etc. based on the received target reference signal resource to realize fast activation of the at least one target serving cell.

[0039] In another example, before S204, at least one target serving cell has already been converted to an activated state (e.g., an RRC message has been received to place the at least one serving cell in an activated state, or an MAC CE signaling has been received to set the at least one serving cell in an activated state), and thus the target reference signal resource is available for operations such as time-frequency tracking, timing acquisition, AGC, etc., thereby accelerating the completion of activation or data transmission of the at least one serving cell.

[0040] In another example, before S204, at least one target serving cell is in an activated state, and the target reference signal resource can be used for CSI acquisition, uplink channel information acquisition, CSI measurement, beam measurement, beam failure detection, RLM measurement, RRM measurement, etc. of the at least one target serving cell, which helps to improve the communication quality of the target serving cell.

[0041] It is to be noted that, for the target reference signal resource described in each embodiment of the present application, the term "target" therein is merely for the purpose of distinguishing it from other reference signal resources, and does not have any specific meaning. For the same reason, for the target TCI state and the target serving cell, the term "target" therein is also for the purpose of distinguishing it from other TCI states and serving cells.

[0042] The TCI states described in the embodiments of the present application, such as the target TCI state, the first TCI state, etc., may include other spatial related information such as QCL information. In one embodiment, the network side device may first configure some target TCI states and / or some first TCI states, each of which can be identified by an identifier ID, and then the network side device may perform an activation or deactivation operation on the configured target TCI state and / or the first TCI state according to the TCI state identifier ID. In another embodiment, the network side device may directly indicate to the terminal an identifier ID of a reference signal resource (which may be referred to as a reference source or a QCL source) that is assumed to have the same or similar spatial information (e.g., the same beam) as the target reference signal resource. Optionally, in this case, the network side device may indicate a serving cell and / or a corresponding bandwidth part (BandWidth Part, BWP) in which the reference source or QCL source is located. In this way, the terminal can know which downlink receiving beam to use to receive the target reference signal.

[0043] 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.

[0044] "Activating or deactivating at least one target reference signal resource" may include activating some target reference signals, deactivating some target reference signals, or activating some target reference signals and deactivating other some target reference signals. Activating or deactivating at least one target TCI state is the same, and a detailed description will be omitted.

[0045] According to the reference signal transmission method provided in the embodiment of the present application, the terminal determines, according to the received first indication information, at least one of activating or deactivating at least one target reference signal resource, activating or deactivating at least one target TCI state associated with the target reference signal resource, and the target reference signal resource is used for at least one of the processes of the at least one target serving cell, such as activating the target serving cell, activating at least one first TCI state, CSI acquisition, uplink channel information acquisition, CSI measurement, beam measurement, beam failure detection, RLM measurement, RRM measurement, cell search, time-frequency tracking, timing acquisition, AGC, rate matching, etc. The embodiment of the present application is advantageous for realizing transmission / transmission cancellation of the target reference signal resource, advantageous for accelerating the activation of the target serving cell, and advantageous for improving the transmission efficiency or stability of the target serving cell.

[0046] Optionally, the target reference signal resource, the target TCI state, the target serving cell, and the first TCI state described in each embodiment of the present application satisfy at least one of the following mapping relationships 1) to 8). 1) One of the target reference signal resources corresponds to at least one of the target TCI states. For example, a terminal can simultaneously receive a target reference signal resource by multiple beams indicated in 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. 2) One of the target reference signal resources corresponds to at least one of the target serving cells. 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 may be transmitted by the target serving cell or may be transmitted by a serving cell other than the target serving cell. 3) One of the target TCI states corresponds to at least one of the target reference signal resources, for example, a terminal can receive multiple target reference signal resources by beams designated in one target TCI state. 4) One of the target TCI states corresponds to at least one of the target serving cells, for example, the target TCI state can be used to indicate spatial related information of at least one of the target serving cells. 5) One of the target serving cells corresponds to at least one of the target reference signal resources, for example, activating one of the target serving cells requires receiving some target reference signal resources. 6) One of the target serving cells corresponds to at least one of the target TCI states. For example, a target serving cell may have multiple pieces of spatial related information. 7) One of the target reference signal resources corresponds to at least one of the first TCI states. For example, one target reference signal resource may be used for activation of multiple first TCI states. 8) One of the first TCI states corresponds to at least one of the target reference signal resources, for example, activating the first TCI state requires the terminal to receive multiple target reference signal resources.

[0047] Optionally, in embodiment 200, the terminal can determine to activate or deactivate at least one of the target reference signal resources according to first indication information, and the first indication information can be transmitted in RRC signaling, and the RRC signaling can be at least one of the following items 1) to 8).

[0048] 1) RRC signaling for transmitting the configuration information corresponding to the target reference signal resource.

[0049] In one example, after the target reference signal resource is configured by RRC signaling, all or part of the target reference signal resource can be immediately activated, or the configuration information corresponding to the target reference signal resource includes the activation indication information of the target reference signal resource in the configuration 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 includes the identifier of the target reference signal to be activated or deactivated, etc. When any one of these conditions is met, the target reference signal resource is activated. It should be noted that in this specification, the method introduced in one embodiment or one description can be applied to the concepts in other embodiments and description parts of this specification. For the sake of simplicity, the following will not repeat the description of similar operations.

[0050] Since the target reference signal resource is used in the processes of the target serving cell such as activation of the target serving cell, activation of at least one first TCI state, CSI acquisition, uplink channel information acquisition, CSI measurement, beam measurement, beam obstruction detection, RLM measurement, RRM measurement, cell search, time-frequency tracking, timing acquisition, AGC, rate matching, etc., it is also possible to determine to activate or deactivate the target reference signal resource by enabling or disabling the configuration information related to these processes of the target serving cell.

[0051] 2) RRC signaling for transmitting the activation or deactivation indication information corresponding to the target reference signal resource.

[0052] 3) RRC signaling for configuring at least one of the target serving cells corresponding to the target reference signal resource to an active state or a deactive state.

[0053] For example, if the RRC relocation message configures the secondary cell to an activated state upon addition, the UE may immediately activate the target reference signal resource corresponding to the secondary cell after receiving the RRC relocation message. Furthermore, the UE performs the activation operation only if it has a configured target reference signal resource. For example, if the RRC relocation message configures the secondary cell to a deactivated state upon addition, the UE does not activate the target reference signal resource corresponding to the secondary cell after receiving the RRC relocation message. In one embodiment, after the serving cell is deactivated by the UE (e.g., an SCell deactivation timer expires), the target reference signal resource associated therewith may be deactivated.

[0054] 4) RRC signaling for placing at least one of the target TCI states corresponding to the target reference signal resource into an activated state or a deactivated state.

[0055] 5) RRC signaling for placing at least one serving cell associated with the target reference signal resource in an activated or deactivated state.

[0056] Since the target reference signal resource can be located in the target serving cell or other serving cells other than the target serving cell, activation of these other serving cells can trigger activation of the target reference signal resource and / or deactivation of these other serving cells can trigger deactivation of the target reference signal resource.

[0057] 6) RRC signaling for placing at least one of the first TCI states corresponding to the target reference signal resource in an activated state or a deactivated state.

[0058] 7) RRC signaling for placing at least one serving cell associated with at least one of the first TCI states in an activated or deactivated state.

[0059] 8) RRC signaling for placing the BWP corresponding to the target reference signal resource in an activated or deactivated state.

[0060] It is to be noted that the above 1) to 8) may be different RRC signalings, or at least two of the above 1) to 8) may be the same RRC signaling, for example, the above 1) and 2) are the same RRC signaling, which includes not only configuration information corresponding to the target reference signal resource, but also activation indication information corresponding to the target reference signal resource.

[0061] Optionally, in embodiment 200, the terminal may determine to activate or deactivate at least one target TCI state based on the first indication information, and the first indication information may be transmitted in RRC signaling, and the RRC signaling may be at least one of the following items 1) to 6). 1) RRC signaling to transmit configuration information corresponding to the target TCI state. 2) RRC signaling for transmitting activation or deactivation indication information corresponding to the target TCI state. 3) RRC signaling for placing at least one target reference signal resource corresponding to the target TCI state in an activated or deactivated state. 4) RRC signaling for placing at least one target serving cell corresponding to the target TCI state in an activated or deactivated state. 5) RRC signaling for placing at least one serving cell associated with at least one of the target TCI states in an activated or deactivated state. 6) RRC signaling to place the BWP corresponding to the target TCI state in an activated or deactivated state.

[0062] It should be noted that the above 1) to 6) may be different RRC signalings, or at least two of the above 1) to 6) may be the same RRC signaling, for example, the above 1) and 2) are the same RRC signaling, which includes not only configuration information corresponding to the target TCI state, but also activation instruction information corresponding to the target TCI state.

[0063] Optionally, the first indication information described in embodiment 200 may be transmitted by being included in first MAC CE signaling, and the first MAC CE signaling may be at least one of the following items 1) to 5). 1) MAC CE signaling to activate or deactivate at least one of the target serving cells. 2) MAC CE signaling to activate or deactivate at least one serving cell associated with at least one of the target reference signal resources. 3) MAC CE signaling to activate or deactivate at least one serving cell associated with at least one of the target TCI states. 4) MAC CE signaling to activate or deactivate at least one of the first TCI states. 5) MAC CE signaling to activate or deactivate at least one serving cell associated with at least one of the first TCI states.

[0064] It is to be noted that the above 1) to 5) may be different MAC CE signalings, or at least both of the above 1) to 5) may be the same MAC CE signalings, in which different MAC CEs are identified by different Logical Channel ID (LCID) domains or Extended Logic Channel ID (eLCID) domains.

[0065] 1), 2), 3), and 5) may be secondary cell activation / deactivation MAC CE, or may be special cell activation / deactivation MAC CE, or cell group activation / deactivation MAC CE. 4) may be PDSCH TCI state activation / deactivation MAC CE, or PDCCH TCI state activation / deactivation MAC CE, or may be semi-persistent CSI-RS resource set activation / deactivation MAC CE. In one embodiment, a MAC CE for one target TCI state activation or deactivation can also be used to indicate activation or deactivation of a target reference signal.

[0066] Optionally, the first indication information described in embodiment 200 may be transmitted in a second MAC CE signaling, and the second MAC CE signaling includes at least one of the following domains 1) to 8).

[0067] 1) A first length domain for indicating a length of the second MAC CE signaling, where the length may be a number of OCTETs or bytes of the second MAC CE.

[0068] 2) a target reference signal resource indicating domain for indicating first related information of at least one of the target reference signal resources;

[0069] In the embodiments of the present application, the names of the target reference signal resource and the target reference signal resource set may be interchangeable, and which name is used depends on the configuration of the target reference signal resource configured on the network side.

[0070] In one embodiment, a target reference signal resource indicating domain can indicate first related information of at least one of the target reference signal resources. In another embodiment, the second MAC CE may include several target reference signal resource indicating domains, where each target reference signal resource indicating domain is for indicating first related information of one of the target reference signal resources.

[0071] 3) a target TCI state indication domain for indicating second related information of the at least one target TCI state;

[0072] In one embodiment, the target TCI state indication domain can indicate second related information of at least one of the target TCI states. In another embodiment, the second MAC CE may include several target TCI state indication domains, where each target TCI state indication domain is for indicating second related information of one of the target TCI states.

[0073] 4) At least one target serving cell identifier ID domain for indicating the identity of the target serving cell.

[0074] Alternatively, if the indicated serving cell belongs to a specific serving cell set, the MAC CE can be applied to some or all of the serving cells in the serving cell set. Alternatively, when the target serving cell identifier ID domain does not appear, it may mean that the MAC CE applies to a specific serving cell (e.g., a Special Cell (SpCell)) or a specific serving cell group (e.g., a Primary Cell Group (Master Cell Group, MCG) or a Secondary Cell Group (SCG)), and of course the LCID or eLCID domain of the second MAC CE may be an alternative.

[0075] 5) A target serving cell bit map domain in which bits of a predetermined length therein are for indicating third related information of the target serving cell corresponding to the bits.

[0076] Here, the bit map domain may be in the format of a bitmap, and each bit or bit block is used to indicate third related information of the corresponding target serving cell.

[0077] For example, the target serving cell bit map domain may be represented as a Ci domain and is used to indicate third related information corresponding to the serving cell identified by ServCellIndex i.

[0078] In actual applications, the above 4) and 5) generally do not appear simultaneously, and only one of them needs to appear.

[0079] 6) At least one BWP ID domain for indicating an uplink and / or downlink BWP corresponding to the target reference signal resource and / or the target TCI state.

[0080] Alternatively, if the MAC CE applies to a serving cell group, the UE may ignore the BWP ID domain. Alternatively, if the domain does not appear, it may implicitly indicate that the MAC CE applies to a specific BWP, for example, the first active uplink (UL) / downlink (DL) bandwidth portion (first active UL / DL BWP) or the currently active BWP (for example, when the UE receives the MAC CE and the serving cell ID domain corresponds to SCell1 and the BWP ID domain does not appear, if SCell1 is currently in a deactivated state, the UE activates SCell1 and applies the MAC CE to the first active BWP of SCell1. For example, under the same conditions, if SCell1 is currently in an activated state and there is an active BWP, the UE applies the MAC CE to the currently activated BWP of SCell1).

[0081] 7) A first TCI state ID domain for indicating an ID of at least one of said first TCI states.

[0082] 8) A first TCI status bitmap domain, in which a predetermined length of bits is for indicating fourth related information of the first TCI status corresponding to said bits.

[0083] As a matter of clarification, the term "domain" may be understood as a number of bits or octets (OCTETs) or bytes that contain designation information. A domain may further be composed of a number of sub-domains, each of which may also be composed of a number of bits or OCTETs that contain designation information.

[0084] In practical applications, the above 7) and 8) generally do not occur simultaneously, and it is sufficient if either one of them occurs.

[0085] It is to be noted that the above 1)-8) may be different MAC CE signalings separately, or at least two of the above 1)-8) may be the same MAC CE signalings. The above 1)-8) may be arbitrarily combined two by two to form one second MAC CE instance, and each second MAC CE instance is identified by a new LCID or eLCID domain. Different second MAC CE signalings are identified by different LCIDs or eLCID domains.

[0086] It is to be noted that in the above 2), one target reference signal resource and more than one target reference signal resource may be indicated. Thus, when the MAC CE is used to indicate one target reference signal resource, the MAC CE may be identified using one LCID domain. When the MAC CE is used to indicate more than one target reference signal resource, the MAC CE may be identified using another LCID domain. In this way, when the UE receives the MAC CE, the UE can determine the length of the MAC CE or the quantity information of the included target reference signal resources according to the LCID domain. It can be understood that the same method can be applied to the above 3)-8). For example, the MAC CE for indicating the target reference signal resource of one target serving cell and the MAC CE for indicating the target reference signal resources of more than one target serving cell may be different and identified using different LCID domains or eLCID domains.

[0087] In the above embodiment, based on the first indication information being second MAC CE signaling, the method of embodiment 200 further includes the following steps: the terminal determines at least one of the following items 1) to 3) according to the first indication information: 1) Activating or deactivating at least one of the target serving cells. 2) Activating or deactivating at least one of the first TCI states. 3) Activate the BWP indicated by the BWP ID domain.

[0088] As can be understood, when the terminal receives the second MAC CE and activates a target reference signal resource and / or a target TCI state of a target serving cell by the second MAC CE, the second MAC CE can simultaneously activate the target serving cell. Optionally, the second MAC CE includes an activation / deactivation indication domain for the target serving cell. Alternatively, the second MAC CE can implicitly indicate to activate the corresponding target serving cell when activating a target reference signal resource and / or a target TCI state. Optionally, the target serving cell is activated if the target serving cell is in a deactivated state. If the target serving cell is in an activated state, the target serving cell is kept in an activated state.

[0089] When the terminal receives a second MAC CE and activates a target reference signal resource and / or a target TCI state of a first TCI state by the second MAC CE, the second MAC CE can simultaneously activate the first TCI state. Optionally, the second MAC CE includes an activation / deactivation instruction domain for the first TCI state. Alternatively, the second MAC CE can implicitly instruct the corresponding first TCI state to be activated when activating a target reference signal resource and / or a target TCI state. Optionally, the first TCI state is activated when the first TCI state is in a deactivation state. The first TCI state is maintained in an activation state when the first TCI state is in an activation state.

[0090] When the second MAC CE includes a BWP ID domain, this domain may be used to indicate a BWP associated with a target reference signal resource and / or a target TCI state, and may be used to instruct the terminal to switch to the BWP indicated in the BWP ID domain.

[0091] Optionally, the target reference signal resource indication domain in the above embodiment includes at least one of the following domains a) to i):

[0092] a) a second length domain for indicating a length of the target reference signal resource indication domain;

[0093] b) A target reference signal resource purpose domain for indicating the purpose or use of the target reference signal resource to be activated or deactivated.

[0094] In one embodiment, the target reference signal resource destination domain can be used to indicate activation or deactivation of at least one type of target reference signal resource. For example, the RRC configures target reference signal resources corresponding to the activation of AGC, time-frequency tracking, CSI-RS, and the first TCI state, respectively. Thus, the domain can use a 4-bit bitmap to respectively correspond to whether to activate the target reference signal resources intended for the activation of AGC, time-frequency tracking, CSI-RS, and the first TCI state.

[0095] c) at least one first activation state domain for indicating activation or deactivation of at least one of the target reference signal resources;

[0096] Here, the first activation state domain can be used to instruct the activation of all target reference signals indicated by the second MAC CE, or to instruct the deactivation of all target reference signals indicated by the second MAC CE, or to instruct which target reference signals among the target reference signals indicated by the second MAC CE should be activated or deactivated (for example, one first activation state domain may be provided for each target reference signal, or one first activation state domain may be provided for each target reference signal indicated by the second MAC CE, and the positions at which these first activation state domains appear may match the positions at which the indicated target reference signals appear in the MAC CE, or may match the ascending or descending order of the target reference signal ID). For example, the first activation state domain may include one bit, and a value of 1 means that all target reference signals indicated by the second MAC CE should be activated, and a value of 0 means that they should be deactivated. In another example, there may be an implicit meaning when the first activation state domain does not appear, for example, it is implicitly permitted to activate all target reference signals indicated in the second MAC CE.

[0097] d) At least one target reference signal resource ID domain used to indicate the ID of the target reference signal resource to be activated or deactivated, or used to indicate the ID of the target reference signal resource corresponding to the target TCI state to be activated or deactivated.

[0098] For example, if a target reference signal resource has not been triggered or activated when the second MAC CE is received, the MAC CE can be used to activate the target reference signal resource, and thus the domain can be used to indicate the ID of the target reference signal resource to be activated. For further example, if a target reference signal resource has already been triggered or activated when the second MAC CE is received, the MAC CE can be used to deactivate the target reference signal resource, and thus the domain can be used to indicate the ID of the target reference signal resource to be deactivated. For further example, if a target reference signal resource has already been triggered or activated when the second MAC CE is received, the MAC CE can be used to deactivate a target TCI state corresponding to the target reference signal resource, and thus the domain can be used to indicate the ID of the target reference signal resource, i.e., the MAC CE can be understood to indicate which target TCI state corresponding to which target reference signal resource to activate.

[0099] e) a target reference signal resource bitmap domain in which a predetermined length of bits is for indicating fifth related information of at least one of the target reference signal resources corresponding to corresponding bits;

[0100] When d) or e) does not appear, it may indicate that the MAC CE applies to a target reference signal resource that is currently in an activated state.

[0101] In practical applications, the above d) and e) generally do not occur simultaneously, and it is sufficient if either one of them occurs.

[0102] f) An overlapping domain for indicating whether the transmission count of the target reference signal resource to be activated is greater than one.

[0103] g) A duplicate transmission count domain for indicating the number of transmissions of the target reference signal resource to be activated.

[0104] h) a target reference signal resource time domain offset domain for indicating an amount of time domain offset associated with the first reference signal to be activated.

[0105] The target reference signal resource time domain offset domain may include: A first time-domain offset amount: indicates a time-domain offset amount between a first time-domain location and a time-domain location for transmitting a target reference signal resource, where the first time-domain location may be a time unit that includes a target reference signal resource activation command or a time unit for transmitting corresponding uplink feedback by the UE. Second time domain offset: indicates a time domain offset in a time unit for transmitting a target reference signal resource, for example, a time domain offset between a symbol for transmitting the target reference signal resource (for the first time) and a first symbol in a slot for transmitting the target reference signal resource.

[0106] Optionally, f)-h) may be indicated for multiple target reference signal resources or may be indicated on a per target reference signal resource basis.

[0107] i) A target reference signal resource quantity domain for indicating the number of the target reference signal resources to be activated or deactivated.

[0108] Optionally, the target TCI state indication domain described in the above embodiment includes at least one of the following domains a) to i).

[0109] a) a third length domain for indicating the length of the target TCI state indication domain;

[0110] b) a second activation state domain for instructing the activation or deactivation of at least one of said target TCI states;

[0111] Here, the second activation state domain can be used to instruct activation of all target TCI states indicated by the second MAC CE, or to instruct deactivation of all target TCI states indicated by the second MAC CE, or to instruct which target TCI states among the target TCI states indicated by the second MAC CE to perform an activation operation on or which target TCI state to perform a deactivation operation on (for example, one second activation state domain may be provided for each target TCI state, or one second activation state domain may be provided for each target TCI state indicated by the second MAC CE, and the positions at which these second activation state domains appear may match the positions at which the indicated target TCI states appear in the second MAC CE, or may match the ascending or descending order of the target TCI state IDs). For example, the second activation state domain may include one bit, and a value of 1 means activation of all target TCI states indicated by the second MAC CE, and a value of 0 means deactivation. In another example, there may be an implicit meaning when the second activation state domain does not appear, for example, it is implicitly permitted to activate all target TCI states indicated in the second MAC CE.

[0112] c) A target TCI state ID domain for indicating the ID of the target TCI state to be activated or deactivated.

[0113] d) a target TCI state bitmap domain in which a predetermined length of bits are for indicating a target state, including an activated state or a deactivated state, of the target TCI state corresponding to said bits;

[0114] In practical applications, the above c) and d) generally do not occur simultaneously, and it is sufficient if either one of them occurs.

[0115] e) A second TCI state ID for indicating the ID of the j-th target TCI state of the i-th code point in the downlink control information (DCI) transmission configuration indication field to be activated or deactivated. i,j domain.

[0116] f) a first resource ID domain for indicating a resource ID of a first resource used to provide a quasi-co-located QCL source of the target reference signal resource;

[0117] g) A first resource serving cell domain for indicating a serving cell in which the first resource is located.

[0118] h) A first resource BWP ID domain for indicating a BWP corresponding to the first resource or a serving cell in which the first resource is located.

[0119] i) An aperiodic trigger state bitmap domain, the predetermined length of bits of which are for indicating a selected state of the aperiodic trigger state corresponding to said bits.

[0120] Optionally, the third related information described in the above embodiment includes at least one of the following a) to d). a) A target state of the target serving cell, including an activated state or a deactivated state. b) Whether the target reference signal resource indication domain corresponding to the target serving cell appears. c) Whether the target TCI status indication domain corresponding to the target serving cell appears. d) Whether the BWP ID domain corresponding to the target serving cell appears.

[0121] For example, when one target serving cell is represented by 4 bits, if the first 4 bits are 1100, it can represent that the UE is instructed to activate the target serving cell, the target reference signal resource indication domain corresponding to the target serving cell appears, the target TCI status indication domain corresponding to the target serving cell does not appear, and the BWP ID domain corresponding to the target serving cell does not appear.Furthermore, when one target serving cell is represented by 1 bit, it can represent that the target serving cell is activated, the target reference signal resource indication domain corresponding to the target serving cell appears, the target TCI status indication domain corresponding to the target serving cell appears, and the BWP ID domain corresponding to the target serving cell appears.

[0122] Depending on the serving cell identifier ServCellIndex, the octets including the target reference signal resource indication domain, the target TCI status indication domain, and the BWP ID domain of the target serving cell may appear in ascending or descending order.

[0123] Optionally, the fourth related information described in the above embodiment includes at least one of the following a) to c). a) A target state of the first TCI state, which includes an activated state or a deactivated state. b) Whether the target reference signal resource indication domain corresponding to the first TCI state appears. c) Whether the target TCI state indication domain corresponding to the first TCI state appears.

[0124] Optionally, the fifth related information described in the above embodiment includes at least one of the following a) to c). a) A target state of the target reference signal, comprising an activated state or a deactivated state. b) Whether the target TCI state indication domain corresponding to the target reference signal appears. c) Whether the first TCI status ID domain or the first TCI status bitmap domain corresponding to the target reference signal appears.

[0125] Optionally, the first indication information described in each of the above-mentioned embodiments may be further used to activate CSI-RS resources, and the first indication information further includes at least one of the following items 1) to 3): 1) CSI-RS activation or deactivation information for instructing the activation or deactivation of a pre-configured CSI-RS resource set. 2) CSI-RS ID information to indicate the ID of the CSI-RS resource set to be activated or deactivated. 3) CSI-RS TCI state information to indicate the QCL source of the CSI-RS resource set to be activated or deactivated.

[0126] Optionally, in each of the above-mentioned embodiments, before the step of the terminal receiving first indication information, the method further includes a step of the terminal receiving first configuration information, the first configuration information including at least one of configuration information of the target reference signal resource and configuration information of the target TCI state.

[0127] Optionally, the target reference signal resource includes at least one of the following items 1) to 3): 1) One or more target reference signals. 2) One or more targeted reference signal sets, each of which may include one or more targeted reference signals. 3) A list of one or more targeted reference signal sets, each of which may contain one or more targeted reference signals.

[0128] Optionally, the first arrangement information may include at least one of the following items 1) to 11). 1) The absolute time domain position or interval at which the target reference signal resource appears. 2) Quantity information of the target reference signal resource. 3) First time domain offset information for indicating a time domain offset between a first time domain position and a time domain position at which the target reference signal resource is transmitted. 4) Second time domain offset information for indicating a time domain offset within a time unit for transmitting the target reference signal resource. 5) The number of transmissions and time domain periodicity information of the target reference signal resource. 6) Activation or deactivation indication information for the target reference signal resource. 7) The ID of the target reference signal resource that needs to be activated or deactivated. 8) Use or purpose information of the target reference signal resource. 9) A time domain offset between the target reference signal resources for different measurement purposes. 10) Activation or deactivation instruction information for the target TCI state. 11) The ID of the target TCI state that needs to be activated or deactivated.

[0129] In order to describe in detail the reference signal transmission methods provided in the embodiments of the present application, the following description will be given with reference to some specific embodiments. Example 1

[0130] In this embodiment, when the network side device adds a target serving cell to an activated state through RRC signaling, it triggers activation of a target reference signal resource and / or a target TCI state, and this embodiment includes the following steps. Step 1: The user equipment (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. Step 2: If the RRC message includes 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 includes a target reference signal activation instruction (including the ID of the target reference signal that needs to be activated). Step 3: If the target reference signal resource configuration includes a TCI state configuration, the UE directly activates the TCI state of the target reference signal corresponding to the secondary cell (e.g., activates the TCI state if only one TCI state is configured or if the target reference signal resource configuration indicates that the TCI state is in an activated state (e.g., activation / deactivation instruction for the TCI state, ID of the TCI state that needs to be activated / deactivated)).

[0131] This embodiment can also be applied when activating an SpCell or activating a cell group directly by RRC signaling, i.e., 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. Example 2

[0132] In this embodiment, the first MAC CE triggers or activates a pre-configured target reference signal resource and / or a TCI state corresponding to the target reference signal resource, and the first MAC CE may be an existing secondary cell activation / deactivation signaling (Legacy SCell A / D), and the embodiment includes the following steps: Step 0: The UE receives a target reference signal resource configuration, and the SCell is in a deactivated state at this time. Step 1: The UE receives an R15 / R16 SCell activation / deactivation MAC CE (ie, a first MAC CE), and according to the first MAC CE indication, the UE activates secondary cells 1, 3, and 5. Step 2: The UE activates the target reference signal resources preconfigured in the secondary cells 1, 3, and 5 simultaneously with or after activating the secondary cells 1, 3, and 5. Step 3: The UE activates the TCI state corresponding to the target reference signal resource simultaneously or after activating the secondary cells 1, 3, and 5, or simultaneously or after activating the target reference signal resource pre-configured in the secondary cells 1, 3, and 5.

[0133] This embodiment can also be applied when activating an SpCell or activating a cell group by the first MAC CE, i.e., 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. Example 3

[0134] In this embodiment, the second MAC CE (e.g., a newly defined MAC CE) can activate a target reference signal resource or a target TCI state corresponding to the target reference signal resource, or can simultaneously activate a target reference signal resource and a TCI state corresponding to the target reference signal resource, or can simultaneously activate TCI states corresponding to a target serving cell, a target reference signal resource, and a target reference signal resource.

[0135] Example 3 will be introduced below as Example 1 and Example 2. (Example 1)

[0136] In example 1, a first MAC CE activates a SCell, and a second MAC CE activates a target reference signal resource in a single target serving cell and a TCI state corresponding to the target reference signal resource. This example 1 includes the following steps. Step 0: The UE receives a target reference signal resource configuration, and the SCell is in a deactivated state. Step 1: The UE receives an R15 / R16 SCell activation / deactivation MAC CE (ie, a first MAC CE), and activates the secondary cell 1 according to the instruction of the first MAC CE. Step 2: The UE receives a first second MAC CE simultaneously with or after activating the secondary cell 1. The first second MAC CE is used to activate a target reference signal resource corresponding to the secondary cell 1. Step 3: The UE receives a second second MAC CE to instruct the UE to activate a TCI state corresponding to the target reference signal resource simultaneously or after activating the secondary cell 1, or simultaneously or after activating a target reference signal resource pre-configured in the secondary cell 1.

[0137] The second second MAC CE in this step may be a MAC CE for activating the TCI state of a PDSCH or a PDCCH defined in R15 / R16, or may be a newly defined second MAC CE.

[0138] In this embodiment, the first MAC CE and the second MAC CE may be identified by a single logical channel identifier (LCID), or may be identified by different LCIDs. (Example 2)

[0139] In example 2, the second MAC CE activates a SCell, a target reference signal resource on the SCell, and a TCI state corresponding to the target reference signal resource. This example 2 includes the following steps. Step 0: The UE receives a target reference signal resource configuration, and the SCell is in a deactivated state. Step 1: The UE receives a second MAC CE, and performs operations of activating a secondary cell 1, activating a target reference signal resource, and activating a TCI state corresponding to the target reference signal resource through the second MAC CE. Example 4

[0140] This embodiment mainly introduces a possible scenario of the second MAC CE, in which the second MAC CE can be used to activate a target reference signal resource (hereinafter referred to as TRS) in a single serving cell.

[0141] In this embodiment, the second MAC CE is identified by an LCID domain or an extended logical channel identifier (eLCID) domain included in the MAC subheader. The second MAC CE may be variable length or fixed length, and is not limited thereto. The second MAC CE is used for activating the TRS of a serving cell and may include at least one of the following domains:

[0142] Serving Cell ID Domain: This domain indicates the ID of the serving cell to which the second MAC CE applies. The serving cell may be an SCell or an SpCell. Optionally, if the indicated serving cell belongs to a specific serving cell set (e.g., a serving cell set configured in a network), the second MAC CE may be applied to some or all of the serving cells in the serving cell set. Optionally, when this domain does not appear, it may mean 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 an SCG).

[0143] BWP ID Domain: This domain indicates the BWP of the corresponding serving cell or serving cell group. Optionally, if the second MAC CE applies to a serving cell group, the UE ignores this domain. Optionally, if this domain does not appear, it can implicitly indicate that the second MAC CE applies to a specific BWP, for example, the first activated UL / DL BWP or the currently activated BWP.

[0144] For example, when the UE receives the second MAC CE, and the serving cell ID domain corresponds to SCell1 and the BWP ID domain does not appear, if SCell1 is currently in a deactivated state, the UE activates SCell1 and applies the second MAC CE to the first activated BWP of SCell1. For further example, under the same condition, if SCell1 is currently in an activated state and there is an activated BWP, the UE applies the second MAC CE to the currently activated BWP of SCell1.

[0145] TRS Destination Domain: Used to indicate the purpose and use of the TRS resource (resource set) to be activated or deactivated. For example, the RRC configures the corresponding TRS resource set for AGC, time domain / frequency domain tracking, and CSI-RS. In this way, the second MAC CE can use a 3-bit bitmap to respectively correspond to whether to activate the TRS for AGC, time domain / frequency domain tracking, and CSI-RS.

[0146] TRS(set)ID domain: This domain indicates the ID of the TRS resource (set) that is to be activated or deactivated. There may be one TRS(set)ID domain, or one for each TRS purpose that is to be activated.

[0147] Activation (A) / Deactivation (D) Domain: This domain indicates whether the corresponding TRS(set) should be activated or deactivated. A first value (e.g., 1) indicates activation, and any other value indicates deactivation. All TRS(set)s indicated by the second MAC CE may share one A / D domain, or each TRS(set) may have one corresponding A / D domain.

[0148] TRS(set) bitmap: indicates the TRS(set) of the corresponding position to be activated or deactivated. A first value (e.g., 1) indicates activation, any other value can indicate deactivation.

[0149] Duplicate Domain: Used to indicate whether the number of transmissions of a TRS(set) is greater than one.

[0150] Duplicate count domain: Used to indicate the number of times a TRS(set) is sent.

[0151] TRS Offset Domain: This domain indicates at least one of the following: A first time domain offset amount: indicates a time domain offset amount between a first time domain location and a time domain location for transmitting a TRS resource / TRS resource set, where the first time domain location may be a time unit including a TRS resource / TRS resource set activation command (RRC / MAC CE / DCI) or a time unit for the UE to transmit corresponding uplink feedback. Second time domain offset: indicates the time domain offset within the time unit for transmitting the TRS resource / TRS resource set. For example, the time domain offset between the symbol for transmitting the TRS resource / TRS resource set (for the first time) and the first symbol within the slot for transmitting the TRS resource / TRS resource set.

[0152] TRS Quantity Domain: Used to indicate the number of TRS resources.

[0153] C Domain: Used to indicate whether bytes containing the specified domain above are present.

[0154] R: Reserved bit.

[0155] As shown in Figures 3 to 7, Figures 3 to 7 are some examples of the second MAC CE introduced in the fourth embodiment, where the S domain in Figure 6 represents using the TRS bitmap domain to indicate the TRS of a serving cell to be activated / deactivated.

[0156] The second MAC CE introduced in this embodiment may be transmitted from the own cell (the serving cell ID may not appear at this time) or from another cell such as a primary cell (Primary Cell, PCell), a primary secondary cell (Primary Secondary Cell, PSCell), or another SCell. Example 5

[0157] This embodiment mainly introduces a possible scenario of the second MAC CE, in which the second MAC CE can be used to activate a TCI state corresponding to one or more TRS resources (for a single cell) or a resource set, or to simultaneously activate one or more TRS and one or more TCI states.

[0158] In this embodiment, the second MAC CE is identified by an LCID domain or eLCID domain included in the MAC subheader. The second MAC CE may be variable length or fixed length, but is not limited thereto. The second MAC CE is used to activate the TCI state corresponding to the TRS and includes at least one of the following domains:

[0159] Serving cell ID domain / BWP ID domain / overlapping domain / overlapping count domain / TRS offset domain / C domain. The usage is the same as in the fourth embodiment.

[0160] TRS(set) ID domain. The usage is the same as in Example 4. If this domain does not appear, the second MAC CE applies to the TRS that is currently in an activated state or is about to be activated.

[0161] A / D domain. The usage is the same as in Example 4. Optionally, if this domain does not appear and the TRS indicated by the corresponding TRS(set)ID domain is in an activated state, the second MAC CE is not used to activate the TRS, and conversely, if the TRS indicated by the corresponding TRS(set)ID domain is in a deactivated state, the MAC CE can be used to activate the TRS.

[0162] TRS(set) bitmap domain: The usage is the same as in Example 4. If this domain does not appear, the second MAC CE applies to the TRS that is currently in an activated state or is about to be activated.

[0163] TCI State ID Domain: This domain is an ID of one or more TCI states (e.g. TCI State Id, optionally the pre-configured TCI state may be the one dedicated to the temporary reference signal or the TCI state configured in the Physical Downlink Shared Channel Configuration (PDSCH-Config) or the TCI state configured in the PDCCH-Config) and is used to indicate the QCL source of the TRS resource to be activated. For example, TCI State ID0 indicates the TCI state of the first TRS resource in the TRS ID domain, TCI State ID1 indicates the second, etc. Optionally, this domain does not appear when the A / D domain indicates to deactivate the TRS resource.

[0164] TCI State ID i,j Domain: This domain is used to indicate the ID of the j-th TCI state of the i-th codepoint in the DCI transmission configuration indication field.

[0165] 1st T iDomain: This domain is used to indicate the activation / deactivation state of TCI state i (TCI-State Id=i). This domain can indicate the state of multiple TCI states in the format of a bitmap. For example, i If the value is the first value, it means that the state of TCI state i is the activation state, and T i If the value is the second value, it means that the state is deactivated. i If the value is the first value, it further means that the corresponding TCI state needs to be mapped to one code point of a DCI predefined field (e.g., the Transmission Configuration Indication field). It can be mapped according to the position where it appears.

[0166] Resource ID i : Used to indicate the resource ID of the QCL source of the TRS.

[0167] Resource Serving Cell ID i : Used to indicate in which serving cell Resource IDi is located.

[0168] Resource BWP IDi: Used to indicate the BWP corresponding to the serving cell in which Resource IDi is located.

[0169] 2nd T iDomain: This domain is used to indicate the selected state of the aperiodic trigger states (Aperiodic Trigger States configured within aperiodicTriggerStateList) pre-configured by the RRC. It can be indicated in the format of a bitmap. For example, T0 represents the first trigger state in the pre-configured aperiodic trigger state list, T1 represents the second one, and so on. When T0 is set to the first value (e.g., 1), it means that the corresponding aperiodic trigger state needs to be mapped to one of the code points in the DCI pre-defined field (e.g., the CSI request field (CSI request field)). It can be mapped according to the position where it appears.

[0170] If there is one TCI state activated by the second MAC CE, the QCL of the aperiodic -TRS (AP-TRS) corresponds to that TCI state. If there are N>1 TCI states activated by the second MAC CE, there are N AP-TRSs, and the QCL of each AP-TRS corresponds to each of the N TCI states respectively. Or, there are 1<=M<N AP-TRSs, and the QCL corresponds to M of the N TCI states respectively, among which the M TCI states may be the default-configured TCI states, for example, the TCI state indicated by the code point with the smallest code point index or the TCI state with the smallest TCI index.

[0171] Furthermore, there is a correspondence between one or more TRS resources or resource sets and one or more TCI states. Furthermore, the TRS is an RS arranged within the TCI state or a QCL source corresponding to the RS arranged within the TCI state.

[0172] As shown in FIGS. 8 to 10, FIGS. 8 to 10 are some examples of the second MAC CE introduced in Embodiment 5. Among them, the T domain in FIG. 9 represents that it uses the TCI state bitmap method to indicate the TCI states of the TRS that are activated and deactivated. Example 6

[0173] This embodiment mainly introduces a possible situation of the second MAC CE, in which the second MAC CE 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 cells.

[0174] The second MAC CE is identified by the LCID domain or eLCID domain included in the MAC subheader. The second MAC CE may be of variable length or fixed length, but is not limited thereto. The second MAC CE includes at least one of the following domains:

[0175] C i Domain: Used to indicate whether the TRS or TCI status for TRS information corresponding to the serving cell identified by ServCellIndex i appears, if the value is 1 it means it appears, otherwise it does not appear. By ServCellIndex, the bytes containing the corresponding TRS or TCI status information appear in ascending order.

[0176] Length domain: Used to indicate the number of bytes of the 2nd MAC CE.

[0177] The TRS / TCI status information of each serving cell is at least one domain in the second MAC CE introduced in the fourth and fifth embodiments.

[0178] Selectable, among which is C i For a serving cell indicated in the domain or serving cell ID domain, if the serving cell is in a deactivated state when receiving the MAC CE, the MAC CE is further used to activate the serving cell.

[0179] As shown in FIG. 11 and FIG. 12, FIG. 11 and FIG. 12 are some examples of the second MAC CE introduced in the sixth embodiment.

[0180] The second MAC CE may be transmitted in the own cell (the serving cell ID may not appear at this time), or may be transmitted in another cell such as a PCell, a PSCell, or another SCell. Example 7

[0181] This embodiment mainly introduces a possible scenario of the second MAC CE. In addition to the functions of the second MAC CE introduced in the above-mentioned embodiments, the second MAC CE in this embodiment can further activate an existing aperiodic CSI-RS resource set, and the second MAC CE may include at least one of the following items 1) to 3): 1) CSI-RS activation or deactivation information for instructing the activation or deactivation of a pre-configured CSI-RS resource set. 2) CSI-RS ID information to indicate the ID of the CSI-RS resource set to be activated or deactivated. 3) CSI-RS TCI state information to indicate the QCL source of the CSI-RS resource set to be activated or deactivated. Example 8

[0182] This embodiment mainly introduces the TRS resource configuration by RRC, and the TRS resource configuration may be configured for each serving cell, each BWP, and each cell group. The TRS resource configuration includes at least one of the following items 1) to 3): 1) One or more TRSs. Each TRS is identified by a TRS ID. 2) One or more TRS resource sets, each of which is identified by a TRS resource set ID. 3) A list of one or more TRS resource sets (TRS resource set list), the list including multiple TRS resource sets.

[0183] In this embodiment, the TRS resource set / TRS resource configuration may include at least one of the following:

[0184] Absolute time domain location: indicates the time unit in which the TRS resource / TRS resource set appears (for the first time) (time unit is e.g. slot, symbol).

[0185] Absolute time domain interval: An interval may be specified by a starting position and a length, which may be further specified based on a protocol.

[0186] Number of TRS resources or number of TRS resource sets.

[0187] First time domain offset: indicates the time domain offset between the first time domain location and the time domain location where the TRS resource / TRS resource set is transmitted, where the first time domain location may be the time unit containing the TRS resource / TRS resource set activation command (RRC / MAC CE / DCI) or the time unit where the UE transmits the corresponding uplink feedback. If the network does not configure this parameter, the UE considers that the time domain offset is 0 or a value specified by the protocol.

[0188] Second time domain offset: indicates the time domain offset within the time unit for transmitting the TRS resource / TRS resource set. For example, the time domain offset between the symbol for transmitting the TRS resource / TRS resource set (for the first time) and the first symbol within the slot for transmitting the TRS resource / TRS resource set.

[0189] 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).

[0190] Activation / deactivation instruction for a TRS resource / TRS resource set.

[0191] ID of the TRS resource / TRS resource set that needs to be activated / deactivated.

[0192] Resource use / purpose: AGC, time-frequency tracking, CSI measurement, etc.

[0193] The amount of time domain offset between TRS resources for different measurement purposes.

[0194] QCL Information / TCI Status: Used to indicate at least one TCI status corresponding to a TRS resource / TRS resource set. The QCL source may be an SSB or other RS.

[0195] TCI state activation / deactivation indication.

[0196] ID of the TCI state that needs to be activated / deactivated.

[0197] It should be noted that the above resources may be deployed differently for different measurement purposes.

[0198] Wherein, the above time unit is not limited here, and may be, for example, slot level, symbol level, millisecond level, etc.

[0199] Above, a method for transmitting a reference signal according to an embodiment of the present application has been described in detail with reference to Figures 2 to 12. Hereinafter, a method for transmitting a reference signal according to another embodiment of the present application will be described in detail with reference to Figure 13. It can be understood that the interaction between the network side device and the terminal described from the network side device perspective is the same as the description on the terminal side in the method shown in Figure 2, and in order to avoid duplication, relevant descriptions will be omitted as appropriate.

[0200] FIG. 13 is a flowchart for implementing a reference signal transmission method according to an embodiment of the present application, which can be applied to network-side devices. As shown in FIG. 13, the method 1300 includes the following step S1302.

[0201] S1302: The network-side device transmits first indication information, and the first indication information is used for the terminal to determine at least one of activating or deactivating at least one target reference signal resource, and activating or deactivating at least one target TCI state associated with the target reference signal resource.

[0202] Here, the target reference signal resource is used for at least one of the processes of at least one target serving cell such as activation of the target serving cell, activation of at least one first TCI state, CSI acquisition, uplink channel information acquisition, CSI measurement, beam measurement, beam obstacle detection, RLM measurement, RRM measurement, cell search, time-frequency tracking, timing acquisition, AGC, rate matching.

[0203] In an embodiment of the present application, the network-side device transmits first indication information, and the terminal determines at least one of activating or deactivating at least one target reference signal resource, and activating or deactivating at least one target TCI state associated with the target reference signal resource according to the received first indication information. The target reference signal resource is used for at least one of the processes of at least one target serving cell such as activation of the target serving cell, activation of at least one first TCI state, CSI acquisition, uplink channel information acquisition, CSI measurement, beam measurement, beam obstacle detection, RLM measurement, RRM measurement, cell search, time-frequency tracking, timing acquisition, AGC, rate matching. The embodiment of the present application is advantageous for realizing the transmission / cancellation of the target reference signal resource, accelerating the activation of the target serving cell, and improving the transmission efficiency or stability of the target serving cell.

[0204] Optionally, in one 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 1) to 8). 1) One of the target reference signal resources corresponds to at least one of the target TCI states. 2) One of the target reference signal resources corresponds to at least one of the target serving cells. 3) One of the target TCI states corresponds to at least one of the target reference signal resources. 4) One of the target TCI states corresponds to at least one of the target serving cells. 5) One of the target serving cells corresponds to at least one of the target reference signal resources. 6) One of the target serving cells corresponds to at least one of the target TCI states. 7) One of the target reference signal resources corresponds to at least one of the first TCI states. 8) One of the first TCI states corresponds to at least one of the target reference signal resources.

[0205] Optionally, as one embodiment, the first indication information is used by the terminal to determine to activate or deactivate at least one of the target reference signal resources, and the first indication information is transmitted in RRC signaling, and the RRC signaling may be at least one of the following items 1) to 8). 1) RRC signaling transmitting configuration information corresponding to the target reference signal resource. 2) RRC signaling transmitting activation or deactivation indication information corresponding to the target reference signal resource. 3) RRC signaling for placing at least one of the target serving cells corresponding to the target reference signal resource in an activated or deactivated state. 4) RRC signaling for placing at least one of the target TCI states corresponding to the target reference signal resource into an activated state or a deactivated state. 5) RRC signaling for placing at least one serving cell associated with the target reference signal resource in an activated or deactivated state. 6) RRC signaling for placing at least one of the first TCI states corresponding to the target reference signal resource in an activated state or a deactivated state. 7) RRC signaling for placing at least one serving cell associated with at least one of the first TCI states in an activated or deactivated state. 8) RRC signaling for placing the bandwidth portion BWP corresponding to the target reference signal resource in an activated or deactivated state.

[0206] Optionally, as one embodiment, the first indication information is used by the terminal to decide to activate or deactivate at least one of the target TCI states, and the first indication information is transmitted in RRC signaling, and the RRC signaling may be at least one of the following 1) to 6). 1) RRC signaling to transmit configuration information corresponding to the target TCI state. 2) RRC signaling for transmitting activation or deactivation indication information corresponding to the target TCI state. 3) RRC signaling for placing at least one target reference signal resource corresponding to the target TCI state in an activated or deactivated state. 4) RRC signaling for placing at least one target serving cell corresponding to the target TCI state in an activated or deactivated state. 5) RRC signaling for placing at least one serving cell associated with at least one of the target TCI states in an activated or deactivated state. 6) RRC signaling to place the BWP corresponding to the target TCI state in an activated or deactivated state.

[0207] Optionally, as one embodiment, the first indication information is transmitted by being included in first MAC CE signaling, and the first MAC CE signaling may be at least one of the following items 1) to 5). 1) MAC CE signaling to activate or deactivate at least one of the target serving cells. 2) MAC CE signaling to activate or deactivate at least one serving cell associated with at least one of the target reference signal resources. 3) MAC CE signaling to activate or deactivate at least one serving cell associated with at least one of the target TCI states. 4) MAC CE signaling to activate or deactivate at least one of the first TCI states. 5) MAC CE signaling to activate or deactivate at least one serving cell associated with at least one of the first TCI states.

[0208] Optionally, as one embodiment, the first indication information is transmitted in a state where it is included in second MAC CE signaling, and the second MAC CE signaling may include at least one of the following domains 1) to 8). 1) A first length domain for indicating a length of the second MAC CE signaling. 2) a target reference signal resource indicating domain for indicating first related information of at least one of the target reference signal resources; 3) a target TCI state indication domain for indicating second related information of the at least one target TCI state; 4) At least one target serving cell identifier ID domain for indicating the identity of the target serving cell. 5) A target serving cell bitmap domain, in which a predetermined length of bits is for indicating third related information of the target serving cell corresponding to the bits. 6) At least one BWP ID domain for indicating an uplink and / or downlink BWP corresponding to the target reference signal resource and / or the target TCI state. 7) A first TCI state ID domain for indicating an ID of at least one of said first TCI states. 8) A first TCI status bitmap domain, in which a predetermined length of bits is for indicating fourth related information of the first TCI status corresponding to said bits.

[0209] Optionally, in one embodiment, the first indication information is further used by the terminal to determine at least one of the following items 1) to 3): 1) Activating or deactivating at least one of the target serving cells. 2) Activating or deactivating at least one of the first TCI states. 3) Activate the BWP indicated by the BWP ID domain.

[0210] Optionally, in one embodiment, the target reference signal resource indication domain includes at least one of the following domains a) to i): a) a second length domain for indicating a length of the target reference signal resource indication domain; b) A target reference signal resource purpose domain for indicating the purpose or use of the target reference signal resource to be activated or deactivated. c) at least one first activation state domain for indicating activation or deactivation of at least one of the target reference signal resources; d) At least one target reference signal resource ID domain used to indicate the ID of the target reference signal resource to be activated or deactivated, or used to indicate the ID of the target reference signal resource corresponding to the target TCI state to be activated or deactivated. e) a target reference signal resource bitmap domain, wherein a predetermined length of bits is for indicating fifth related information of at least one of the target reference signal resources; f) An overlapping domain for indicating whether the transmission count of the target reference signal resource to be activated is greater than one. g) A duplicate transmission count domain for indicating the number of transmissions of the target reference signal resource to be activated. h) a target reference signal resource time domain offset domain for indicating an amount of time domain offset associated with the first reference signal to be activated. i) A target reference signal resource quantity domain for indicating the number of the target reference signal resources to be activated or deactivated.

[0211] Optionally, in one embodiment, the target TCI state indication domain includes at least one of the following domains a) to i): a) a third length domain for indicating the length of the target TCI state indication domain; b) a second activation state domain for instructing the activation or deactivation of at least one of said target TCI states; c) A target TCI state ID domain for indicating the ID of the target TCI state to be activated or deactivated. d) a target TCI state bitmap domain in which a predetermined length of bits are for indicating a target state, including an activated state or a deactivated state, of the target TCI state corresponding to said bits; e) A second TCI state ID for indicating the ID of the j-th target TCI state of the i-th code point in the downlink control information (DCI) transmission configuration indication field to be activated or deactivated.i,j domain. f) a first resource ID domain for indicating a resource ID of a first resource used to provide a quasi-co-located QCL source of the target reference signal resource; g) A first resource serving cell domain for indicating a serving cell in which the first resource is located. h) A first resource BWP ID domain for indicating a BWP corresponding to the first resource or a serving cell in which the first resource is located. i) An aperiodic trigger state bitmap domain, the predetermined length of bits of which are for indicating a selected state of the aperiodic trigger state corresponding to said bits.

[0212] Optionally, in one embodiment, the third related information includes at least one of the following a) to d): a) A target state of the target serving cell, including an activated state or a deactivated state. b) Whether the target reference signal resource indication domain corresponding to the target serving cell appears. c) Whether the target TCI status indication domain corresponding to the target serving cell appears. d) Whether the BWP ID domain corresponding to the target serving cell appears.

[0213] Optionally, in one embodiment, the fourth related information includes at least one of the following a) to c). a) A target state of the first TCI state, which includes an activated state or a deactivated state. b) Whether the target reference signal resource indication domain corresponding to the first TCI state appears. c) Whether the target TCI state indication domain corresponding to the first TCI state appears.

[0214] Optionally, in one embodiment, the fifth related information includes at least one of the following a) to c). a) A target state of the target reference signal, comprising an activated state or a deactivated state. b) Whether the target TCI state indication domain corresponding to the target reference signal appears. c) Whether the first TCI status ID domain or the first TCI status bitmap domain corresponding to the target reference signal appears.

[0215] Optionally, as one embodiment, the first indication information is further used to activate a CSI-RS resource, and the first indication information further includes at least one of the following items 1) to 3): 1) CSI-RS activation or deactivation information for instructing the activation or deactivation of a pre-configured CSI-RS resource set. 2) CSI-RS ID information to indicate the ID of the CSI-RS resource set to be activated or deactivated. 3) CSI-RS TCI state information to indicate the QCL source of the CSI-RS resource set to be activated or deactivated.

[0216] Optionally, as one embodiment, before the step of the network side equipment transmitting first indication information, the method further includes a step of the network side equipment transmitting first configuration information, the first configuration information including at least one of configuration information of the target reference signal resource and configuration information of the target TCI state.

[0217] Optionally, in one embodiment, the target reference signal resource includes at least one of the following items 1) to 3). 1) One or more target reference signals. 2) One or more targeted reference signal sets, each of which may include one or more targeted reference signals. 3) A list of one or more targeted reference signal sets, each of which may contain one or more targeted reference signals.

[0218] Optionally, as one embodiment, the first arrangement information includes at least one of the following items 1) to 11). 1) The absolute time domain position or interval at which the target reference signal resource appears. 2) Quantity information of the target reference signal resource. 3) First time domain offset information for indicating a time domain offset between a first time domain position and a time domain position at which the target reference signal resource is transmitted. 4) Second time domain offset information for indicating a time domain offset within a time unit for transmitting the target reference signal resource. 5) The number of transmissions and time domain periodicity information of the target reference signal resource. 6) Activation or deactivation indication information for the target reference signal resource. 7) The ID of the target reference signal resource that needs to be activated or deactivated. 8) Use or purpose information of the target reference signal resource. 9) A time domain offset between the target reference signal resources for different measurement purposes. 10) Activation or deactivation instruction information for the target TCI state. 11) The ID of the target TCI state that needs to be activated or deactivated.

[0219] It is to be noted that the execution entity of the reference signal transmission method provided in the embodiments of the present application may be a reference signal transmission device or a control module for executing the reference signal transmission method in the reference signal transmission device. In the embodiments of the present application, the reference signal transmission device provided in the embodiments of the present application will be described by taking the reference signal transmission device executing the reference signal transmission method as an example.

[0220] 14 is a schematic diagram of a reference signal transmission device according to an embodiment of the present application, which can correspond to a terminal in other embodiments. As shown in FIG. 14, the device 1400 includes a receiving module 1402 and a determining module 1404 as follows:

[0221] The receiving module 1402 is used for receiving the first indication information.

[0222] The decision module 1404 is used to decide, based on the first instruction information, at least one of activating or deactivating at least one target reference signal resource and activating or deactivating at least one target TCI state associated with the target reference signal resource.

[0223] Here, the target reference signal resource is used for at least one of the processes of at least one target serving cell, such as target serving cell activation, activation of at least one first TCI state, CSI acquisition, uplink channel information acquisition, CSI measurement, beam measurement, beam failure detection, RLM measurement, RRM measurement, cell search, time-frequency tracking, timing acquisition, AGC, and rate matching.

[0224] In an embodiment of the present application, the apparatus 1400 determines, according to the received first indication information, at least one of activating or deactivating at least one target reference signal resource, activating or deactivating at least one target TCI state associated with the target reference signal resource, where the target reference signal resource is used for at least one of the processes of the at least one target serving cell, such as activating the target serving cell, activating at least one first TCI state, CSI acquisition, uplink channel information acquisition, CSI measurement, beam measurement, beam failure detection, RLM measurement, RRM measurement, cell search, time-frequency tracking, timing acquisition, AGC, rate matching, etc. The embodiment of the present application is advantageous for realizing transmission / transmission cancellation of the target reference signal resource, advantageous for accelerating the activation of the target serving cell, and advantageous for improving the transmission efficiency or stability of the target serving cell.

[0225] Optionally, in one 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 1) to 8). 1) One of the target reference signal resources corresponds to at least one of the target TCI states. 2) One of the target reference signal resources corresponds to at least one of the target serving cells. 3) One of the target TCI states corresponds to at least one of the target reference signal resources. 4) One of the target TCI states corresponds to at least one of the target serving cells. 5) One of the target serving cells corresponds to at least one of the target reference signal resources. 6) One of the target serving cells corresponds to at least one of the target TCI states. 7) One of the target reference signal resources corresponds to at least one of the first TCI states. 8) One of the first TCI states corresponds to at least one of the target reference signal resources.

[0226] Optionally, in one embodiment, the decision module 1404 decides to activate or deactivate at least one of the target reference signal resources based on the first indication information, and the first indication information is transmitted in RRC signaling, and the RRC signaling may be at least one of the following items 1) to 8). 1) RRC signaling transmitting configuration information corresponding to the target reference signal resource. 2) RRC signaling transmitting activation or deactivation indication information corresponding to the target reference signal resource. 3) RRC signaling for placing at least one of the target serving cells corresponding to the target reference signal resource in an activated or deactivated state. 4) RRC signaling for placing at least one of the target TCI states corresponding to the target reference signal resource into an activated state or a deactivated state. 5) RRC signaling for placing at least one serving cell associated with the target reference signal resource in an activated or deactivated state. 6) RRC signaling for placing at least one of the first TCI states corresponding to the target reference signal resource in an activated state or a deactivated state. 7) RRC signaling for placing at least one serving cell associated with at least one of the first TCI states in an activated or deactivated state. 8) RRC signaling for placing the bandwidth portion BWP corresponding to the target reference signal resource in an activated or deactivated state.

[0227] Optionally, in one embodiment, the decision module 1404 decides to activate or deactivate at least one of the target TCI states based on the first indication information, and the first indication information is transmitted in RRC signaling, and the RRC signaling may be at least one of the following 1) to 6). 1) RRC signaling to transmit configuration information corresponding to the target TCI state. 2) RRC signaling for transmitting activation or deactivation indication information corresponding to the target TCI state. 3) RRC signaling for placing at least one target reference signal resource corresponding to the target TCI state in an activated or deactivated state. 4) RRC signaling for placing at least one target serving cell corresponding to the target TCI state in an activated or deactivated state. 5) RRC signaling for placing at least one serving cell associated with at least one of the target TCI states in an activated or deactivated state. 6) RRC signaling to place the BWP corresponding to the target TCI state in an activated or deactivated state.

[0228] Optionally, as one embodiment, the first indication information is transmitted by being included in first MAC CE signaling, and the first MAC CE signaling may be at least one of the following items 1) to 5). 1) MAC CE signaling to activate or deactivate at least one of the target serving cells. 2) MAC CE signaling to activate or deactivate at least one serving cell associated with at least one of the target reference signal resources. 3) MAC CE signaling to activate or deactivate at least one serving cell associated with at least one of the target TCI states. 4) MAC CE signaling to activate or deactivate at least one of the first TCI states. 5) MAC CE signaling to activate or deactivate at least one serving cell associated with at least one of the first TCI states.

[0229] Optionally, as one embodiment, the first indication information is transmitted in a state where it is included in second MAC CE signaling, and the second MAC CE signaling may include at least one of the following domains 1) to 8). 1) A first length domain for indicating a length of the second MAC CE signaling. 2) a target reference signal resource indicating domain for indicating first related information of at least one of the target reference signal resources; 3) a target TCI state indication domain for indicating second related information of the at least one target TCI state; 4) At least one target serving cell identifier ID domain for indicating the identity of the target serving cell. 5) A target serving cell bitmap domain, in which a predetermined length of bits is for indicating third related information of the target serving cell corresponding to the bits. 6) At least one BWP ID domain for indicating an uplink and / or downlink BWP corresponding to the target reference signal resource and / or the target TCI state. 7) A first TCI state ID domain for indicating an ID of at least one of said first TCI states. 8) A first TCI status bitmap domain, in which a predetermined length of bits is for indicating fourth related information of the first TCI status corresponding to said bits.

[0230] For the apparatus 1400 according to an embodiment of the present application, reference can be made to the steps corresponding to the method 200 of the embodiment of the present application, and each unit / module in the apparatus 1400 and other operations and / or functions mentioned above are for realizing the corresponding steps in the method 200, respectively, and can achieve the same or equivalent technical effects, and for the sake of brevity, detailed descriptions thereof will be omitted here.

[0231] The transmission device of the reference signal in the embodiment of the present application may be a device, a device having an operating system, or an electronic device, or may be an element, an integrated circuit, or a chip in a terminal. The device or electronic device may be a portable terminal or a non-portable terminal. For example, the portable terminal may include, but is not limited to, the types of terminals 11 listed above, and the non-portable terminal may be a server, a network attached storage (NAS), a personal computer (PC), a television (TV), an automated teller machine or a kiosk, etc., and is not specifically limited in the embodiment of the present application.

[0232] The reference signal transmission device provided in the embodiments of the present application can realize each step realized in the method embodiments of Figures 2 to 13 and achieve similar technical effects, and for the sake of brevity, duplicated descriptions will be omitted here.

[0233] 15 is a schematic diagram of a configuration of a reference signal transmission device according to an embodiment of the present application, which can correspond to the network side equipment in other embodiments. As shown in FIG. 15, the device 1500 includes the following transmitting module 1502:

[0234] The transmitting module 1502 is used for transmitting first instruction information, which is used by the terminal to determine at least one of: activating or deactivating at least one target reference signal resource; and activating or deactivating at least one target TCI state associated with the target reference signal resource.

[0235] Here, the target reference signal resource is used for at least one of the processes of at least one target serving cell, such as target serving cell activation, activation of at least one first TCI state, CSI acquisition, uplink channel information acquisition, CSI measurement, beam measurement, beam failure detection, RLM measurement, RRM measurement, cell search, time-frequency tracking, timing acquisition, AGC, and rate matching.

[0236] In an embodiment of the present application, the apparatus 1500 transmits the first indication information, and the terminal determines at least one of activating or deactivating at least one target reference signal resource and activating or deactivating at least one target TCI state related to the target reference signal resource according to the received first indication information, and the target reference signal resource is used for at least one of the processes of the at least one target serving cell, such as activating the target serving cell, activating at least one first TCI state, CSI acquisition, uplink channel information acquisition, CSI measurement, beam measurement, beam failure detection, RLM measurement, RRM measurement, cell search, time-frequency tracking, timing acquisition, AGC, and rate matching. The embodiment of the present application is advantageous for realizing transmission / transmission cancellation of the target reference signal resource, advantageous for accelerating the activation of the target serving cell, and advantageous for improving the transmission efficiency or stability of the target serving cell.

[0237] Optionally, in one 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 1) to 8). 1) One of the target reference signal resources corresponds to at least one of the target TCI states. 2) One of the target reference signal resources corresponds to at least one of the target serving cells. 3) One of the target TCI states corresponds to at least one of the target reference signal resources. 4) One of the target TCI states corresponds to at least one of the target serving cells. 5) One of the target serving cells corresponds to at least one of the target reference signal resources. 6) One of the target serving cells corresponds to at least one of the target TCI states. 7) One of the target reference signal resources corresponds to at least one of the first TCI states. 8) One of the first TCI states corresponds to at least one of the target reference signal resources.

[0238] Optionally, as one embodiment, the first indication information is used by the terminal to determine to activate or deactivate at least one of the target reference signal resources, and the first indication information is transmitted in RRC signaling, and the RRC signaling may be at least one of the following items 1) to 8). 1) RRC signaling transmitting configuration information corresponding to the target reference signal resource. 2) RRC signaling transmitting activation or deactivation indication information corresponding to the target reference signal resource. 3) RRC signaling for placing at least one of the target serving cells corresponding to the target reference signal resource in an activated or deactivated state. 4) RRC signaling for placing at least one of the target TCI states corresponding to the target reference signal resource into an activated state or a deactivated state. 5) RRC signaling for placing at least one serving cell associated with the target reference signal resource in an activated or deactivated state. 6) RRC signaling for placing at least one of the first TCI states corresponding to the target reference signal resource in an activated state or a deactivated state. 7) RRC signaling for placing at least one serving cell associated with at least one of the first TCI states in an activated or deactivated state. 8) RRC signaling for placing the bandwidth portion BWP corresponding to the target reference signal resource in an activated or deactivated state.

[0239] Optionally, as one embodiment, the first indication information is used by the terminal to decide to activate or deactivate at least one of the target TCI states, and the first indication information is transmitted in RRC signaling, and the RRC signaling may be at least one of the following 1) to 6). 1) RRC signaling to transmit configuration information corresponding to the target TCI state. 2) RRC signaling for transmitting activation or deactivation indication information corresponding to the target TCI state. 3) RRC signaling for placing at least one target reference signal resource corresponding to the target TCI state in an activated or deactivated state. 4) RRC signaling for placing at least one target serving cell corresponding to the target TCI state in an activated or deactivated state. 5) RRC signaling for placing at least one serving cell associated with at least one of the target TCI states in an activated or deactivated state. 6) RRC signaling to place the BWP corresponding to the target TCI state in an activated or deactivated state.

[0240] Optionally, as one embodiment, the first indication information is transmitted by being included in first MAC CE signaling, and the first MAC CE signaling may be at least one of the following items 1) to 5). 1) MAC CE signaling to activate or deactivate at least one of the target serving cells. 2) MAC CE signaling to activate or deactivate at least one serving cell associated with at least one of the target reference signal resources. 3) MAC CE signaling to activate or deactivate at least one serving cell associated with at least one of the target TCI states. 4) MAC CE signaling to activate or deactivate at least one of the first TCI states. 5) MAC CE signaling to activate or deactivate at least one serving cell associated with at least one of the first TCI states.

[0241] Optionally, as one embodiment, the first indication information is transmitted in a state where it is included in second MAC CE signaling, and the second MAC CE signaling may include at least one of the following domains 1) to 8). 1) A first length domain for indicating a length of the second MAC CE signaling. 2) a target reference signal resource indicating domain for indicating first related information of at least one of the target reference signal resources; 3) a target TCI state indication domain for indicating second related information of the at least one target TCI state; 4) At least one target serving cell identifier ID domain for indicating the identity of the target serving cell. 5) A target serving cell bitmap domain, in which a predetermined length of bits is for indicating third related information of the target serving cell corresponding to the bits. 6) At least one BWP ID domain for indicating an uplink and / or downlink BWP corresponding to the target reference signal resource and / or the target TCI state. 7) A first TCI state ID domain for indicating an ID of at least one of said first TCI states. 8) A first TCI status bitmap domain, in which a predetermined length of bits is for indicating fourth related information of the first TCI status corresponding to said bits.

[0242] For the apparatus 1500 according to an embodiment of the present application, reference can be made to the steps corresponding to the method 1300 of the embodiment of the present application, and each unit / module in the apparatus 1500 and other operations and / or functions mentioned above are for realizing the corresponding steps in the method 1300, respectively, and can achieve the same or equivalent technical effects, and for the sake of brevity, detailed descriptions are omitted here.

[0243] Optionally, as shown in Fig. 16, an embodiment of the present application further provides a communication device 1600, including a processor 1601, a memory 1602, and a program or command stored in the memory 1602 and executable by the processor 1601, for example, when the communication device 1600 is a terminal, the program or command is executed by the processor 1601 to realize each step of the embodiment of the reference signal transmission method and achieve similar technical effects. When the communication device 1600 is a network side device, the program or command is executed by the processor 1601 to realize each step of the embodiment of the reference signal transmission method and achieve similar technical effects, and for the sake of brevity, repeated description will be omitted here.

[0244] The present application further provides a terminal including a processor and a communication interface, the processor being used to determine at least one of activating or deactivating at least one target reference signal resource and activating or deactivating at least one target TCI state associated with the target reference signal resource according to the first indication information, the target reference signal resource being used for at least one of the target serving cell processes, such as activating a target serving cell, activating at least one first TCI state, CSI acquisition, uplink channel information acquisition, CSI measurement, beam measurement, beam failure detection, RLM measurement, RRM measurement, cell search, time-frequency tracking, timing acquisition, AGC, and rate matching, and the communication interface being used to receive the first indication information. The terminal embodiment corresponds to the above terminal side method embodiment, and each implementation step and realization form of the above method embodiment can be applied to the terminal embodiment, and the same technical effects can be achieved. Specifically, FIG. 17 is a schematic diagram of a hardware configuration of a terminal for implementing the embodiment of the present application.

[0245] The terminal 1700 includes at least some elements such as, but 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 a processor 1710.

[0246] It is understood by those skilled in the art that the terminal 1700 may further include a power source (e.g., a battery) for powering each element, and the power source may be logically connected to the processor 1710 through a power management system, and the power management system may further realize functions such as charge / discharge management and power consumption management. The terminal configuration shown in FIG. 17 is not intended to limit the terminal, and the terminal may include more or less elements than those shown in the drawing, or may combine some elements, or may have a different element arrangement, and detailed description thereof will be omitted here.

[0247] It should be understood that in the embodiment of the present application, the input unit 1704 may include a graphics processing unit (GPU) 17041 for processing image data of a static image or a video captured by an image capture device (e.g., a camera) in a video capture mode or an image capture mode, and a microphone 17042. The display unit 1706 may include a display panel 17061, which may be arranged 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. The other input devices 17072 may include, but are not limited to, a physical keyboard, a function button (e.g., a volume control button, a switch button, etc.), a trackball, a mouse, and a control lever, and detailed description thereof is omitted here.

[0248] In the embodiment of the present application, the high frequency unit 1701 receives downlink data from the network side device, processes the data in the processor 1710, and transmits uplink data to the network side device. Typically, the high frequency unit 1701 includes, but is not limited to, an antenna, at least one amplifier, a receiver-transmitter, a coupler, a low-noise amplifier, a duplexer, etc.

[0249] The memory 1709 can be used to store software programs or commands and various data. The memory 1709 may mainly include an area for storing programs or commands and a data storage area, which can store an operating system, applications or commands required for at least one function (e.g., audio playback function, image playback function, etc.). The memory 1709 may also include a high-speed random access memory or a non-transitory memory, among which the non-transitory memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically erasable programmable read-only memory (Electrically EPROM, EEPROM), or a flash memory. For example, at least one magnetic disk storage device, a flash memory device, or other non-transitory solid-state storage device may be included.

[0250] The processor 1710 may include one or more processing units, and may selectively integrate an application processor that mainly processes an operating system, a user interface, and applications or commands, etc., and a modem processor that mainly processes wireless communications, e.g., a baseband processor, in the processor 1710. It is understood that the modem processor may not be integrated into the processor 1710.

[0251] Here, the high frequency unit 1701 is used for receiving the first indication information.

[0252] Processor 1710 is used to determine, based on the first instruction information, at least one of activating or deactivating at least one target reference signal resource, and activating or deactivating at least one target TCI state associated with the target reference signal resource, wherein the target reference signal resource is used for at least one of the processes of at least one target serving cell, such as target serving cell activation, activation of at least one first TCI state, CSI acquisition, uplink channel information acquisition, CSI measurement, beam measurement, beam failure detection, RLM measurement, RRM measurement, cell search, time-frequency tracking, timing acquisition, AGC, and rate matching.

[0253] In an embodiment of the present application, the terminal determines, according to the received first indication information, at least one of activating or deactivating at least one target reference signal resource, and activating or deactivating at least one target TCI state associated with the target reference signal resource, where the target reference signal resource is used for at least one of the processes of the at least one target serving cell, such as activating the target serving cell, activating at least one first TCI state, CSI acquisition, uplink channel information acquisition, CSI measurement, beam measurement, beam failure detection, RLM measurement, RRM measurement, cell search, time-frequency tracking, timing acquisition, AGC, and rate matching. The embodiment of the present application is advantageous for realizing transmission / transmission cancellation of the target reference signal resource, advantageous for accelerating the activation of the target serving cell, and advantageous for improving the transmission efficiency or stability of the target serving cell.

[0254] The terminal 1700 provided in the embodiment of the present application can further implement each step of the embodiment of the method for transmitting a reference signal described above, and achieve the same technical effects. For the sake of brevity, the repeated description will be omitted here.

[0255] An embodiment of the present application further provides a network side device comprising a processor and a communication interface, the communication interface being used for transmitting first indication information, the first indication information being used for a terminal to determine at least one of activating or deactivating at least one target reference signal resource, activating or deactivating at least one target TCI state associated with the target reference signal resource, the target reference signal resource being used for at least one of the following target serving cell processes: activating a target serving cell, activating at least one first TCI state, CSI acquisition, uplink channel information acquisition, CSI measurement, beam measurement, beam failure detection, RLM measurement, RRM measurement, cell search, time-frequency tracking, timing acquisition, AGC, and rate matching. The network side device embodiment corresponds to the above network side device method embodiment, and each implementation step and realization form of the above method embodiment are all applicable to the network side device embodiment, and can achieve similar technical effects.

[0256] Specifically, the embodiment of the present application further provides a network side device. As shown in Fig. 18, the network side device 1800 includes an antenna 181, a radio frequency device 182, and a baseband device 183. The antenna 181 is connected to the radio frequency device 182. In the uplink direction, the radio frequency device 182 receives information through the antenna 181, and transmits the received information to the baseband device 183 for processing. In the downlink direction, the baseband device 183 processes the information to be transmitted and transmits it to the radio frequency device 182, and the radio frequency device 182 processes the received information before transmitting it via the antenna 181.

[0257] The above frequency band processing device may be in a baseband device 183 , and the method performed by the network side device in the above embodiment may be implemented in the baseband device 183 , which includes a processor 184 and a memory 185 .

[0258] The baseband device 183 may, for example, include at least one baseband board having multiple chips installed thereon, and as shown in FIG. 18, one of the chips is, for example, a processor 184 connected to a memory 185 to call a program in the memory 185 and perform the operations of the network side equipment shown in the above method embodiments.

[0259] The baseband device 183 may further include a network interface 186 for communicating with the radio frequency device 182, the interface being, for example, a common public radio interface (abbreviated as CPRI).

[0260] Specifically, the network side equipment of the embodiment of the present application further includes commands or programs stored in memory 185 and executable by processor 184, and processor 184 can call the commands or programs in memory 185 to execute the methods executed by each module shown in FIG. 15 and achieve similar technical effects, which will not be described in detail here in order to avoid duplication.

[0261] An embodiment of the present application further provides a readable storage medium storing a program or command, which, when executed by a processor, can realize each step of the embodiment of the reference signal transmission method described above and achieve similar technical effects, and for the sake of brevity, repeated description will be omitted here.

[0262] 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.

[0263] An embodiment of the present application is a chip including a processor and a communication interface, where the communication interface is coupled to the processor, and the processor executes a program or command to implement each step of the embodiment of the above method for transmitting a reference signal, and further provides a chip that can achieve the same technical effects. For the sake of brevity, duplicate descriptions are omitted here.

[0264] It should be understood that the chip described in the embodiment according to the present application may also be referred to as a system-on-chip, a chip system, a system-on-a-chip, etc.

[0265] It should be noted that in this specification, the term "including", "consisting of" or any other variation thereof is intended to include non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such a process, method, article or device. Unless otherwise specified, the element limited by the phrase "including one..." does not exclude the further existence of another same element in the process, method, article or device including the element. It should be pointed out that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or considered, and may basically include performing functions in a simultaneous manner or in the reverse order according to the relevant functions. For example, a method described in a different order from the described order can be executed, and it is also possible to add, omit or combine various steps. In addition, the features described with reference to some examples can be combined with other examples.

[0266] From the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be realized in the form of a combination of software and a necessary common hardware platform, and of course, they can be realized by hardware, but in many cases the former is a more preferred embodiment. Based on this view, the technical solution of the present application can be substantially 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 (e.g., ROM / RAM, magnetic disk, optical disk) and includes a plurality of instructions that cause a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network side device, etc.) to execute the methods described in each embodiment of the present application.

[0267] Although the examples of the present application have been described above with reference to the drawings, the present application is not limited to the above-mentioned specific embodiments, which are merely illustrative and not limiting. Based on the suggestions of this application, many forms that a person skilled in the art can make without departing from the spirit of the present application and the scope of protection of the claims are all within the scope of protection of the present application.

Claims

1. A step of receiving a second MAC CE signaling by the terminal, the second MAC CE signaling comprising: at least one target reference signal resource ID domain used to indicate the ID of a target reference signal resource to be activated; a target serving cell bitmap domain, the target serving cell bitmap domain having a predetermined length of bits therein for indicating a target state of a target serving cell corresponding to the bits and whether the target reference signal resource ID domain corresponding to the target serving cell appears, the target state including an activated state or a deactivated state; The second MAC CE signaling determining to activate at least one target transmission configuration indication TCI state, the target TCI state corresponding to the target reference signal resource; A method for transmitting a reference signal, wherein the target reference signal resource is used for at least one of the target serving cell processes, such as activation of the target serving cell and time-frequency tracking.

2. The target reference signal resource, the target TCI state, and the target serving cell, one of the target reference signal resources corresponds to at least one of the target TCI states; one of the target reference signal resources corresponds to at least one of the target serving cells; one of the target TCI states corresponds to at least one of the target reference signal resources; one of the target TCI states corresponds to at least one of the target serving cells; one of the target serving cells corresponds to at least one of the target reference signal resources; The method of claim 1 , wherein at least one mapping relationship is satisfied, such that one of the target serving cells corresponds to at least one of the target TCI states.

3. The second MAC CE signaling further comprises: a first length domain for indicating a length of the second MAC CE signaling; At least one target serving cell identifier ID domain for indicating an identity of the target serving cell; and at least one BWP ID domain for indicating an uplink and / or downlink BWP corresponding to the target reference signal resource and / or the target TCI state.

4. The terminal, by the second MAC CE signaling, activating or deactivating at least one of the target serving cells; activating or deactivating at least one of the first TCI states; The method of claim 3 , further comprising determining at least one of activating a BWP indicated in the BWP ID domain.

5. The method further includes, before the terminal receives the second MAC CE signaling, receiving first configuration information by the terminal, the first configuration information being: Configuration information of the target reference signal resource; The method of claim 1 , further comprising at least one of: configuration information of the target TCI state;

6. The target reference signal resource is: one or more target reference signals; one or more sets of target reference signals; The method of claim 5 , further comprising at least one of a list of one or more target reference signal sets.

7. The method of claim 6, wherein the target reference signal resource includes a TRS resource.

8. The method of claim 6, wherein the target reference signal includes a TRS or the target reference signal set includes a TRS resource set.

9. The method of claim 8, wherein each TRS is identified by a TRS ID or each TRS resource set is identified by a TRS resource set ID.

10. The method of claim 7, wherein the first configuration information further includes QCL information used to indicate at least one TCI state corresponding to the TRS resource or TRS resource set.

11. The method described in claim 10, wherein the step of the terminal receiving first configuration information includes receiving the first configuration information by RRC.

12. The method includes a step of transmitting a second MAC CE signaling by a network side device, the second MAC CE signaling comprising: at least one target reference signal resource ID domain used to indicate the ID of a target reference signal resource to be activated; a target serving cell bitmap domain, the bits of which are for indicating a target state of a target serving cell corresponding to the bits and whether the target reference signal resource ID domain corresponding to the target serving cell appears, the target state including an activated state or a deactivated state; The second MAC CE signaling comprises: The at least one target TCI state is used for a terminal to determine to activate the at least one target TCI state corresponding to the target reference signal resource; A method for transmitting a reference signal, wherein the target reference signal resource is used for at least one of the target serving cell processes, such as activation of the target serving cell and time-frequency tracking.

13. Before the step of the network side device transmitting the second MAC CE signaling, the method further includes a step of the network side device transmitting first configuration information, the first configuration information being: Configuration information of the target reference signal resource; The method of claim 12 , further comprising at least one of configuration information of the target TCI state.

14. The target reference signal resource: one or more target reference signals; one or more sets of target reference signals; The method of claim 13 , comprising at least one of a list of one or more target reference signal sets.

15. The method of claim 14, wherein the target reference signal resource includes a TRS resource.

16. The method of claim 14, wherein the target reference signal includes a TRS or the target reference signal set includes a TRS resource set.

17. The method of claim 16, wherein each TRS is identified by a TRS ID or each TRS resource set is identified by a TRS resource set ID.

18. The method of claim 15, wherein the first configuration information further includes QCL information used to indicate at least one TCI state corresponding to the TRS resource or TRS resource set.

19. The method according to claim 18, wherein the step of the network side device receiving the first configuration information includes receiving the first configuration information by RRC.

20. A terminal comprising a processor, a memory, and a program or command stored in the memory and executable by the processor, the terminal realizing the method for transmitting a reference signal according to any one of claims 1 to 11 when the program or command is executed by the processor.

21. A network side device comprising a processor, a memory, and a program or command stored in the memory and executable by the processor, the network side device realizing a reference signal transmission method according to any one of claims 12 to 19 when the program or command is executed by the processor.

22. A readable storage medium storing a program or command, which, when executed by a processor, realizes the method for transmitting a reference signal according to any one of claims 1 to 11, or realizes the method for transmitting a reference signal according to any one of claims 12 to 19.

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