Information transmission method and communication apparatus

Abstract

The present application provides an information transmission method and a communication apparatus. The method comprises: a terminal sends a plurality of reference signals on a plurality of cells; the terminal receives first information, the first information being used for instructing to deactivate a first cell, and the plurality of cells comprising the first cell; and the terminal determines to stop sending the plurality of reference signals. The present application can reduce resource waste, thus improving the resource utilization rate.

Description

Information transmission method and communication device

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on November 1, 2023, with application number 202311445403.2 and application name “Information Transmission Method and Communication Device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communications, and more particularly, to an information transmission method and a communication device. Background Art

[0003] In a mobile communication system, a terminal can be positioned by transmitting positioning reference signals between multiple access network nodes and the terminal. Specifically, positioning can be achieved based on the terminal's measurement results of downlink reference signals sent by the multiple access network nodes. This approach is called downlink-based positioning. Alternatively, positioning can be achieved by having the multiple access network nodes receive and measure uplink reference signals from the terminal. This approach is called uplink-based positioning.

[0004] The accuracy of positioning is related to the bandwidth of the reference signal used for positioning. The larger the bandwidth of the reference signal, the higher the time resolution and the stronger the multipath resolution capability. The arrival time of the first path can be identified more accurately, which can reduce the position estimation error and improve the positioning accuracy. Due to the limited bandwidth of a single carrier, it is currently proposed to realize a large-bandwidth reference signal by aggregating the bandwidth of multiple carriers. Specifically, the reference signal for positioning can be sent simultaneously on multiple carriers to form a large-bandwidth reference signal. At present, it is considered that the existing carrier aggregation (CA) mechanism can be reused to realize the bandwidth aggregation of the reference signal. However, directly reusing the existing CA mechanism may waste resources and fail to guarantee positioning accuracy.

[0005] Summary of the Invention

[0006] The embodiments of the present application provide an information transmission method and a communication device, which can reduce resource waste and improve resource utilization.

[0007] In a first aspect, a method for information transmission is provided, which can be executed by a terminal or a module (such as a chip) configured in (or used for) a terminal. The following description takes the execution of the method by a terminal as an example.

[0008] The method includes: a terminal sending multiple reference signals on multiple cells, receiving first information indicating deactivation of a first cell, the multiple cells including the first cell, and determining to stop sending the multiple reference signals.

[0009] According to the above scheme, if the cell where one of the multiple bandwidth-aggregated reference signals is located is deactivated, the terminal stops sending the bandwidth-aggregated reference signal, that is, the terminal stops sending both the reference signal on the deactivated cell and the reference signals on other cells that implement bandwidth aggregation with the reference signal on the cell, without the need for the network device to send additional instructions to notify the terminal. This scheme can avoid transmitting reference signals that do not meet bandwidth requirements and reduce resource waste. For example, when bandwidth-aggregated reference signals are used for positioning, if only the reference signal on the deactivated cell is stopped from being transmitted, the positioning accuracy requirements will not be met because the bandwidth size of the reference signals on other cells does not meet the conditions. Therefore, stopping the transmission of reference signals on other cells can reduce unnecessary resource waste and improve resource utilization.

[0010] In conjunction with the first aspect, in certain implementations of the first aspect, the terminal determining to stop transmitting the multiple reference signals includes: the terminal determining to stop transmitting a first reference signal for the first cell, where the multiple reference signals include the first reference signal. The terminal determines whether the first reference signal is associated with a reference signal in a cell other than the first cell. If the first reference signal is associated with a reference signal in at least one cell, the terminal determines to stop transmitting the reference signal in the at least one cell, where the multiple cells include the first cell and the at least one cell.

[0011] According to the above solution, after determining that the first cell has been deactivated, the terminal can first determine to stop transmitting reference signals for the first cell, including the first reference signal, and then determine whether there are reference signals for other cells associated with the first reference signal. If so, it can determine to stop transmitting reference signals for other cells associated with the first reference signal. The specific execution operations of the terminal are specified, which can avoid unnecessary operations and reduce power consumption.

[0012] Exemplarily, the terminal may receive second information, where the second information is used to configure the association relationship between the multiple reference signals on the multiple cells, and the terminal may determine the association relationship between the multiple reference signals based on the second information.

[0013] Specifically, the multiple reference signals may be reference signals with the same time domain resource location; and / or, the multiple reference signals may be carrier aggregated reference signals or bandwidth aggregated reference signals; and / or, the multiple reference signals may be used for positioning.

[0014] In combination with the first aspect, in certain implementations of the first aspect, the method also includes: when the first reference signal is associated with the second reference signal, if the second cell where the second reference signal is located is a secondary cell, the terminal determines whether to deactivate the second cell based on whether the transmission configuration of the second cell is configured to only transmit the second reference signal, wherein the at least one cell includes the second cell.

[0015] According to the above scheme, if the second cell where the reference signal associated with the first reference signal is located is a secondary cell, the terminal can also determine whether to deactivate the second cell based on whether the transmission configuration of the second cell is only configured to transmit the second reference signal. This can achieve deactivation of the second cell without the need for the network device to send indication information and when the conditions are met, thereby reducing unnecessary overhead.

[0016] In conjunction with the first aspect, in certain implementations of the first aspect, when the first reference signal is associated with a reference signal on at least one cell, determining to stop transmitting the reference signal on the at least one cell includes: when the first reference signal is associated with a second reference signal, if the second cell is a secondary cell and only the second reference signal is configured for transmission in the transmission configuration of the second cell, determining to deactivate the second cell and determining to stop transmitting the second reference signal. When the first reference signal is associated with the second reference signal, if the second cell is a secondary cell and only the second reference signal is configured for transmission in the transmission configuration of the second cell, the terminal determines to stop transmitting the second reference signal.

[0017] According to the above solution, if the transmission configuration of the second cell only configures transmission of the second reference signal, the terminal can determine to deactivate the second cell and stop maintaining the second cell, thereby reducing terminal power consumption. In addition, there is no need for the network device to send an instruction to deactivate the second cell, thereby reducing resource overhead.

[0018] In combination with the first aspect, in some implementations of the first aspect, the determination to stop sending the first reference signal on the first cell includes: the terminal determining whether the transmission configuration of the first cell is configured to only transmit the first reference signal.

[0019] If the transmission configuration of the first cell only configures transmission of the first reference signal, determining to stop sending the first reference signal; or,

[0020] If the transmission configuration on the first cell configures not only transmission of the first reference signal, determining to stop sending the first reference signal on the first cell, and determining to perform one or more of the following:

[0021] Stop reporting the channel state information CSI of the first cell;

[0022] Stop transmission on the uplink shared channel UL-SCH of the first cell;

[0023] Stop transmission on the random access channel RACH of the first cell;

[0024] Stop detecting a physical downlink control channel PDCCH on the first cell;

[0025] Stop detecting the PDCCH associated with the first cell;

[0026] Stop transmission on the PUCCH of the first cell.

[0027] According to the above scheme, when the terminal determines that the first cell is deactivated, it determines whether the transmission configuration of the first cell is configured to only transmit the first reference signal. When the first cell is only configured to transmit the first reference signal, unnecessary execution steps of the terminal can be reduced, and implementation complexity and power consumption can be reduced.

[0028] In a second aspect, an information transmission method is provided, which can be executed by a network device or a module (such as a chip) configured in (or used for) a network device.

[0029] The method includes: a network device receiving multiple reference signals on multiple cells, the network device sending first information for instructing to deactivate a first cell, the multiple cells including the first cell, and the network device determining to stop receiving the multiple reference signals.

[0030] In combination with the second aspect, in some implementations of the second aspect, the method further includes: the network device sends second information, where the second information is used to configure an association relationship between the multiple reference signals on the multiple cells.

[0031] In combination with the second aspect, in certain implementations of the second aspect, the time domain resource positions of the multiple reference signals are the same; and / or, the multiple reference signals are carrier aggregated reference signals or bandwidth aggregated reference signals; and / or, the multiple reference signals are used for positioning.

[0032] According to a third aspect, a communication device is provided. In one design, the device may include a module corresponding to the method / operation / step / action described in the first aspect or any one of the embodiments of the first aspect. The module may be a hardware circuit, software, or a combination of a hardware circuit and software. In one design, the device includes: a transceiver unit for sending multiple reference signals on multiple cells. The transceiver unit is also used to receive first information, the first information being used to indicate deactivation of a first cell, the multiple cells including the first cell. A processing unit is used to determine to stop sending the multiple reference signals.

[0033] In conjunction with the third aspect, in certain implementations of the third aspect, the processing unit is specifically configured to:

[0034] Determine to stop sending a first reference signal on the first cell, where the multiple reference signals include the first reference signal;

[0035] determining whether the first reference signal is associated with a reference signal in a cell other than the first cell;

[0036] In a case where the first reference signal is associated with a reference signal on at least one cell, determining to stop sending the reference signal on the at least one cell,

[0037] The multiple cells include the first cell and the at least one cell.

[0038] In combination with the third aspect, in certain implementations of the third aspect, the processing unit is also used to, when the first reference signal is associated with the second reference signal, determine whether to deactivate the second cell based on whether the transmission configuration of the second cell is configured to only transmit the second reference signal, if the second cell where the second reference signal is located is a secondary cell, wherein the at least one cell includes the second cell.

[0039] In conjunction with the third aspect, in certain implementations of the third aspect, the processing unit is specifically configured to:

[0040] In a case where the first reference signal is associated with a second reference signal, if the second cell is a secondary cell and only transmission of the second reference signal is configured in the transmission configuration of the second cell, determining to deactivate the second cell and determining to stop sending the second reference signal; or

[0041] In a case where the first reference signal is associated with a second reference signal, if the second cell is a secondary cell and the transmission configuration of the second cell configures not only transmission of the second reference signal, it is determined to stop sending the second reference signal.

[0042] In conjunction with the third aspect, in certain implementations of the third aspect, the processing unit is specifically configured to determine whether the transmission configuration of the first cell is configured to transmit only the first reference signal. If the transmission configuration of the first cell is configured to transmit only the first reference signal, determine to stop transmitting the first reference signal; or, if the transmission configuration on the first cell is configured to transmit more than the first reference signal, determine to stop transmitting the first reference signal on the first cell, and determine to perform one or more of the following:

[0043] Stop reporting the channel state information CSI of the first cell;

[0044] Stop transmission on the uplink shared channel UL-SCH of the first cell;

[0045] Stop transmission on the random access channel RACH of the first cell;

[0046] Stop detecting a physical downlink control channel PDCCH on the first cell;

[0047] Stop detecting the PDCCH associated with the first cell;

[0048] Stop transmission on the PUCCH of the first cell.

[0049] In combination with the third aspect, in certain implementations of the third aspect, the transceiver unit is further used to receive second information, where the second information is used to configure an association relationship between the multiple reference signals on the multiple cells.

[0050] In combination with the third aspect, in certain implementations of the third aspect, the time domain resource positions of the multiple reference signals are the same; and / or, the multiple reference signals are carrier-aggregated reference signals or bandwidth-aggregated reference signals; and / or, the multiple reference signals are used for positioning.

[0051] In a fourth aspect, a communication device is provided. In one design, the device may include a module corresponding to the method / operation / step / action described in the second aspect or any one of the embodiments of the second aspect. The module may be a hardware circuit, software, or a combination of a hardware circuit and software. In one design, the device includes: a transceiver unit for receiving multiple reference signals on multiple cells. The transceiver unit is also used to send first information, where the first information is used to indicate deactivation of a first cell, and the multiple cells include the first cell. A processing unit is used to determine to stop receiving the multiple reference signals.

[0052] In combination with the fourth aspect, in certain implementations of the fourth aspect, the transceiver unit is further used to send second information, where the second information is used to configure an association relationship between the multiple reference signals on the multiple cells.

[0053] In combination with the fourth aspect, in certain implementations of the fourth aspect, the time domain resource positions of the multiple reference signals are the same; and / or, the multiple reference signals are carrier aggregated reference signals or bandwidth aggregated reference signals; and / or, the multiple reference signals are used for positioning.

[0054] In a fifth aspect, a communication device is provided, comprising a processor. The processor can implement the method in any possible implementation of the first aspect to the second aspect and the first aspect to the second aspect. Optionally, the communication device further includes a memory, and the processor is coupled to the memory, and can be used to execute instructions in the memory to implement the method in any possible implementation of the first aspect to the second aspect and the first aspect to the second aspect. Optionally, the communication device further includes a communication interface, and the processor is coupled to the communication interface. In the embodiment of the present application, the communication interface can be a transceiver, a pin, a circuit, a bus, a module, or other types of communication interfaces, without limitation.

[0055] In one implementation, the communication apparatus is a communication device (such as a terminal or an access network device). When the communication apparatus is a communication device, the communication interface may be a transceiver or an input / output interface.

[0056] In another implementation, the communication device is a chip configured in a communication device. When the communication device is a chip configured in a communication device, the communication interface may be an input / output interface.

[0057] Optionally, the transceiver may be a transceiver circuit. Optionally, the input / output interface may be an input / output circuit.

[0058] In a sixth aspect, a processor is provided, comprising: an input circuit, an output circuit, and a processing circuit. The processing circuit is configured to receive a signal through the input circuit and transmit a signal through the output circuit, so that the processor executes the method described in any possible implementation of the first and second aspects above.

[0059] In a specific implementation, the processor may be one or more chips, the input circuit may be an input pin, the output circuit may be an output pin, and the processing circuit may be a transistor, a gate circuit, a trigger, or various logic circuits. The input signal received by the input circuit may be, for example, but not limited to, received and input by a receiver, and the signal output by the output circuit may be, for example, but not limited to, output to and transmitted by a transmitter. The input circuit and the output circuit may be the same circuit, which functions as an input circuit and an output circuit at different times. The embodiments of the present application do not limit the specific implementation of the processor and various circuits.

[0060] In the seventh aspect, a computer program product is provided, which includes: a computer program (also referred to as code, or instructions), which, when executed, enables a computer to execute the method in the above-mentioned first aspect to the second aspect and any possible implementation of the first aspect to the second aspect.

[0061] In an eighth aspect, a computer-readable storage medium is provided, which stores a computer program (also referred to as code, or instructions). When the computer-readable storage medium is run on a computer, the computer executes the method in the above-mentioned first aspect to the second aspect and any possible implementation of the first aspect to the second aspect.

[0062] In a ninth aspect, a communication system is provided, comprising at least one communication device provided in the third aspect and at least one communication device provided in the fourth aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] FIG1 is a schematic diagram of a communication system applicable to an embodiment of the present application;

[0064] FIG2 is a schematic flowchart of the uplink positioning process provided by the present application;

[0065] FIG3 is a schematic flow chart of the information transmission method provided by the present application;

[0066] FIG4 is a schematic diagram of various transmission situations of a cell provided by this application;

[0067] FIG5 is a schematic block diagram of a communication device provided in an embodiment of the present application;

[0068] FIG6 is another schematic structural diagram of a communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0069] The technical solution in this application will be described below with reference to the accompanying drawings.

[0070] In the embodiments of this application, " / " can indicate that the objects associated with each other are in an "or" relationship. For example, A / B can mean A or B. "And / or" can be used to describe the existence of three relationships between the associated objects. For example, "A and / or B" can mean: A exists alone, A and B exists simultaneously, and B exists alone. A and B can be singular or plural. To facilitate the description of the technical solutions of the embodiments of this application, the words "first" and "second" can be used to distinguish them in the embodiments of this application. The words "first" and "second" do not limit the quantity or order of execution, and the words "first" and "second" do not necessarily mean different. In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design described as "exemplary" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. The use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete way to facilitate understanding. In the embodiments of the present application, at least one (kind) can also be described as one (kind) or multiple (kinds), and multiple (kinds) can be two (kinds), three (kinds), four (kinds) or more (kinds), and this application does not limit it.

[0071] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as long-term evolution (LTE) systems, fifth-generation (5G) communication systems, and wireless fidelity (WiFi) systems. The communication method provided in this application can also be applied to sixth-generation (6G) communication systems and other communication systems evolved after 5G, future communication systems, or other communication systems. This application is not limited to this.

[0072] Figure 1 is a schematic diagram illustrating a possible, non-limiting system. As shown in Figure 1 , communication system 10 includes a radio access network (RAN) 100 and a core network (CN) 200. RAN 100 includes at least one RAN node (e.g., 110a and 110b in Figure 1 , collectively referred to as 110) and at least one terminal (e.g., 120a-120j in Figure 1 , collectively referred to as 120). RAN 100 may also include other RAN nodes, such as wireless relay equipment and / or wireless backhaul equipment (not shown in Figure 1 ). Terminal 120 is wirelessly connected to RAN node 110. Access network node (or RAN node) 110 is wirelessly or wiredly connected to core network 200. The core network equipment in core network 200 and access network node 110 in RAN 100 can be separate physical devices, or they can be a single physical device that integrates core network logical functions and radio access network logical functions.

[0073] The RAN 100 may be a cellular system related to the Third Generation Partnership Project (3GPP), such as a 4G or 5G mobile communication system, or a future-oriented evolutionary system (such as a 6G mobile communication system). The RAN 100 may also be an open access network (O-RAN or ORAN), a cloud radio access network (CRAN), or a wireless fidelity (WiFi) system. The RAN 100 may also be a communication system that integrates two or more of the above systems.

[0074] The network device provided in the embodiments of the present application may be an access network node, such as access network node 110. Access network nodes may also sometimes be referred to as access network devices, RAN entities, or access nodes, etc., and constitute part of a communication system to help terminals achieve wireless access. The multiple access network nodes 110 in the communication system 10 may be nodes of the same type or different types. In some scenarios, the roles of the access network node 110 and the terminal 120 are relative. For example, the network element 120i in Figure 1 may be a helicopter or a drone, which may be configured as a mobile base station. For the terminal 120j that accesses the RAN 100 through the network element 120i, the network element 120i is a base station; but for the base station 110a, the network element 120i is a terminal. The access network node 110 and the terminal 120 are sometimes referred to as communication devices. For example, the network elements 110a and 110b in Figure 1 may be understood as communication devices with base station functions, and the network elements 120a-120j may be understood as communication devices with terminal functions.

[0075] In one possible scenario, the access network node may be a base station, an evolved NodeB (eNodeB), an access point (AP), a transmission reception point (TRP), a next generation NodeB (gNB), a next generation base station in a sixth generation (6G) mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system. The access network node may be a macro base station (such as 110a in FIG1 ), a micro base station or an indoor station (such as 110b in FIG1 ), a relay node or a donor node, or a wireless controller in a CRAN scenario. Optionally, the access network node may also be a server, a wearable device, a vehicle or an onboard device, etc. For example, the access network device in the vehicle to everything (V2X) technology may be a road side unit (RSU). All or part of the functions of the access network node in this application may also be implemented by software functions running on hardware, or by virtualization functions instantiated on a platform (such as a cloud platform). The access network node in this application may also be a logical node, a logical module or software that can implement all or part of the access network node functions.

[0076] In another possible scenario, multiple access network nodes collaborate to assist the terminal in achieving wireless access, and different access network nodes respectively implement part of the functions of the base station. For example, the access network node can be a centralized unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU). The CU and DU can be set separately, or they can be included in the same network element, such as a baseband unit (BBU). The RU can be included in a radio frequency device or radio frequency unit, such as a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH).

[0077] In different systems, CU (or CU-CP and CU-UP), DU or RU may also have different names, but those skilled in the art can understand their meanings. For example, in the ORAN system, CU may also be called O-CU (Open CU), DU may also be called O-DU, CU-CP may also be called O-CU-CP, CU-UP may also be called O-CU-UP, and RU may also be called O-RU. For the convenience of description, this application uses CU, CU-CP, CU-UP, DU and RU as examples for description. Any unit of CU (or CU-CP, CU-UP), DU and RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0078] A terminal may also be referred to as a terminal device, user equipment (UE), mobile station, or mobile terminal. A terminal can be widely used in various communication scenarios. These scenarios include, but are not limited to, at least one of the following: enhanced mobile broadband (eMBB), ultra-reliable low-latency communication (URLLC), massive machine-type communications (mMTC), D2D, V2X, machine-type communication (MTC), Internet of Things (IoT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wearables, smart transportation, sensing terminals, integrated communication and sensing terminals, or smart cities. The terminal can be a mobile phone (such as 120a, 120j and 120e in Figure 1), a tablet computer, a computer with wireless transceiver function (such as 120g in Figure 1), customer-premises equipment (CPE), a smart point of sale (POS) machine, a wearable device, a vehicle (such as 120b in Figure 1), a drone, a helicopter, an airplane (such as 120i in Figure 1), a ship, a robot, a robotic arm, a sensor, a perception device, or a smart home device (such as 120h in Figure 1), etc.

[0079] This application does not limit the specific technology and specific device form adopted by the terminal. It should be understood that in this application, "sending information / data to... (such as a terminal)" can be understood as the destination end of the information being the terminal. It can include sending information / data directly or indirectly to the terminal. "Receiving information / data from... (such as a terminal)" can be understood as the source end of the information being the terminal, which can include receiving information / data directly or indirectly from the terminal. The information / data may be subjected to necessary processing between the source end and the destination end of the information / data transmission, such as format changes, etc., but the destination end can understand the valid information / data from the source end. Similar expressions in this application can be understood similarly and will not be repeated here.

[0080] In this application, "sending information / data" refers only to the direction of information / data transmission, including direct transmission over the air interface and indirect transmission by the processing unit through the air interface. "Sending" can also be understood as the "output" of the module interface. "Receiving information / data" refers only to the direction of information / data transmission, including direct reception over the air interface and indirect reception by the processing unit through the air interface. "Receiving" can also be understood as the "input" of the module interface.

[0081] The following is an introduction to the relevant technologies and terms involved in the embodiments of this application.

[0082] 1. Cells and Carriers

[0083] A cell can be understood as the coverage area of ​​a wireless signal identified by a network device identification code or a global cell identification code. A cell is a unit that manages wireless communication resources from a resource management perspective. The physical layer resources of a cell include at least one carrier. From a physical layer perspective, a carrier is used to carry wireless signals. Wireless signals may include one or more of control information, service data, and reference signals. A carrier occupies a certain frequency domain resource and is characterized by the carrier frequency and the bandwidth of the carrier frequency band. A cell includes at least one carrier, which includes a downlink carrier, or a downlink carrier and an uplink carrier. The downlink carrier is used to carry wireless signals sent by network equipment to terminals. The uplink carrier is used to carry wireless signals sent by terminals to the network. Depending on the duplex mode, for example, when the cell adopts frequency division duplex (FDD), the downlink carrier and uplink carrier of a cell can be different. When the cell adopts time division duplex (TDD), the downlink carrier and uplink carrier of a cell can be the same.

[0084] A cell's carriers, as frequency domain resources and time resources, form the cell's time-frequency resources. Alternatively, carriers can be understood as forming time-frequency resources over time. Communication signals (including control information, reference signals, and data) between network devices and terminals in the cell are carried on the cell's time-frequency resources. Specifically, downlink carriers and time resources constitute the cell's downlink time-frequency resources, while uplink carriers and time resources constitute the cell's uplink time-frequency resources.

[0085] 2. Carrier Aggregation (CA)

[0086] In a non-CA scenario, a terminal may establish a communication connection with a cell, and the cell provides network services for the terminal. The cell may be referred to as a serving cell of the terminal.

[0087] In the CA scenario, the terminal can establish communication connections with multiple cells, which serve as the terminal's service cells to provide communication services for the terminal. The carrier frequencies of the multiple cells are different and the carrier frequency bands do not overlap, which increases the communication bandwidth between the network equipment and the terminal and can improve the data transmission rate. Among them, the cell that the terminal initially accesses is called the primary cell (PCell), which is used to establish a radio resource control (RRC) connection between the terminal and the network. The network can configure a secondary cell (SCell) for the terminal according to the terminal's transmission requirements to provide more transmission resources for the terminal. The secondary cell can be configured through the RRC signaling of the primary cell, and the activation or deactivation of the secondary cell can be achieved through the media access control (MAC) control element (CE) or downlink control information (DCI).

[0088] 3. Positioning technology based on uplink (UL) link

[0089] Positioning technologies include, but are not limited to, time difference of arrival (TDOA) positioning technology, angle of arrival (AOA) positioning technology, angle of departure (AOD) positioning technology, and multi-round time trip (multi-RTT) positioning technology. The device performing positioning estimation may implement positioning based on a single positioning technology or a combination of multiple positioning technologies. UL link-based positioning technology refers to implementing positioning using one or more positioning technologies based on an uplink reference signal sent by a terminal.

[0090] Figure 2 is a schematic flow chart of an uplink-based positioning method. In Figure 2, a location management function (LMF) node is a node in the core network. The LMF node can implement positioning functions and provide different types of location services for UEs. The uplink-based positioning method may include the following steps:

[0091] Step 1: The UE sends positioning capability information to the LMF node.

[0092] The LMF node can obtain the positioning capability of the UE based on the positioning capability information.

[0093] Step 2: The LMF node exchanges configuration information with the serving base station and the neighboring base stations of the serving base station.

[0094] Specifically, the LMF node can send a positioning request message to the serving base station, and notify the serving base station through the positioning request message to perform uplink-based positioning on the UE. The serving base station can determine the configuration information of the UE's uplink reference signal, such as the uplink positioning reference signal can be a sounding reference signal (SRS). The serving base station sends a positioning response message to the LMF node, and the positioning response message may include the configuration information of the SRS. The LMF node can send the SRS configuration information to the neighboring base station, so that the neighboring base station receives the SRS from the UE based on the SRS configuration information and performs positioning measurements.

[0095] Step 3: The serving base station sends the SRS configuration information to the UE.

[0096] Step 4: The UE sends the SRS based on the SRS configuration information.

[0097] Correspondingly, the serving base station and the neighboring base station receive the SRS from the UE based on the SRS configuration information, and perform positioning measurements to obtain measurement results.

[0098] Step 5: The serving base station and the neighboring base station send the measurement results to the LMF node.

[0099] Step 6: The LMF node determines the UE location based on the received measurement results.

[0100] Exemplarily, the following is an example of an LMF node using UL-TDOA positioning technology to calculate the UE position. The LMF node can configure at least three access network nodes to receive the UE's SRS, such as the three access network nodes belonging to the service base station and the above-mentioned neighboring base stations at different locations. The access network nodes can be DU, RU or the base station itself. Exemplarily, the three access network nodes can include a service base station and two neighboring base stations, or the three access network nodes can include two access network nodes of the service base station, such as DU and / or RU, and one access network node of the neighboring base station. This application is not limited to this.

[0101] Specifically, for the LMF node, the positions of the three access network nodes are known, and the coordinates of the access network node i are denoted as (x i ,y i ), the coordinates of the UE to be located are marked as (x UE ,y UE ), a reference access network node is set among the three access network nodes. The UE measures the arrival time difference Δt between the positioning reference signal of the other two access network nodes and the positioning reference signal of the reference access network node respectively. i1 , according to the relationship between distance difference and signal transmission delay difference, we can get:

[0102] Among them, access network node 1 is the reference access network node, and c is the speed of light. The UE position coordinates (x UE ,y UE ).

[0103] The larger the bandwidth of the reference signal used for positioning, the higher the positioning accuracy. Specifically, the larger the bandwidth, the higher the time resolution and the stronger the multipath resolution capability, which can more accurately identify the first path arrival time, thereby reducing the position estimation error and improving the positioning accuracy. It is currently considered that the existing carrier aggregation (CA) mechanism can be reused to achieve bandwidth aggregation of reference signals. However, directly reusing the existing CA mechanism may waste resources and fail to guarantee positioning accuracy. For example, when the transmission data volume requirement is small or the carrier channel quality is poor, the network device may notify the terminal to deactivate one or more secondary cells. If the one or more secondary cells are configured with bandwidth-aggregated reference signals, the terminal will stop sending the reference signals on the deactivated one or more secondary cells. However, if the terminal still sends reference signals on other cells, it will result in the bandwidth of the reference signal sent by the terminal not meeting the actual configured bandwidth size, and thus failing to meet the actual positioning accuracy requirement, resulting in a waste of resources. To address this issue, the present application proposes that, when a network device deactivates a cell carrying a bandwidth-aggregated reference signal, a terminal stops transmitting reference signals located on other cells in the bandwidth-aggregated reference signal, without the need for the network device to separately send an instruction to notify the terminal. This solution can avoid transmitting reference signals that do not meet bandwidth requirements and reduce resource waste.

[0104] FIG3 is a schematic flow chart of an information transmission method 300 provided in an embodiment of the present application. The method 300 includes but is not limited to the following steps:

[0105] S301: A terminal sends multiple reference signals on multiple cells.

[0106] The network device may send second information to the terminal, where the second information is used to configure an association relationship between the multiple reference signals in the multiple cells. Accordingly, the terminal receives the second information from the network device and determines that the multiple reference signals in the multiple cells are associated. Based on the second information, the terminal transmits the multiple reference signals in the multiple cells.

[0107] The multiple reference signals are uplink reference signals. Exemplarily, the multiple reference signals may be SRSs.

[0108] The multiple reference signals are located in different cells, and the multiple reference signals can be called carrier-aggregated reference signals or bandwidth-aggregated reference signals, which is not limited in this application.

[0109] In one example, the second information may include an identifier of each of the multiple cells, and the second information may also include time-frequency resource configuration information for a reference signal in each of the multiple cells. If the second information configures the multiple reference signals to have the same time-domain resource location, the terminal may transmit the multiple reference signals in the multiple cells based on the configuration of the second information.

[0110] In another example, the second information may configure a reference signal set, where the reference signal set includes the multiple reference signals of the multiple cells. The terminal may send the reference signals in the reference signal set according to the configuration of the second information.

[0111] The multiple reference signals can be used for positioning. For example, if the network device configures the terminal to send the multiple reference signals on the multiple cells, the network device can obtain the location information of the terminal based on the multiple reference signals received in the multiple cells.

[0112] S302: The terminal receives first information, where the first information is used to instruct deactivation of a first cell, where the multiple cells include the first cell.

[0113] The network device may send first information to the terminal, informing the terminal to deactivate the first cell among the multiple cells.

[0114] S303: The terminal determines to stop sending the multiple reference signals on the multiple cells.

[0115] After receiving the first information, the terminal may determine that one of the multiple cells is deactivated, and the terminal may determine to stop transmitting the multiple reference signals on the multiple cells. In other words, when the cell where one of the associated multiple reference signals is located is deactivated, the terminal determines to stop transmitting the associated multiple reference signals.

[0116] The terminal determines to stop sending the multiple reference signals on the multiple cells, which may specifically include the following two steps:

[0117] In step 1, the terminal determines to stop sending a first reference signal on a first cell, where the multiple reference signals include the first reference signal.

[0118] In step 2, the terminal determines whether the first reference signal is associated with a reference signal in a cell other than the first cell. If the first reference signal is associated with a reference signal in at least one cell, the terminal determines to stop transmitting the reference signal in the at least one cell, where the multiple cells include the first cell and the at least one cell.

[0119] That is, after receiving the first information for deactivating the first cell from the network device, the terminal may first determine to stop transmitting reference signals for the first cell, including the first reference signal. The terminal may then determine whether there are reference signals of other cells associated with the first reference signal. If so, the terminal may determine to stop transmitting the reference signals of other cells associated with the first reference signal.

[0120] For the cells where the multiple bandwidth-aggregated reference signals are located, there may be multiple situations depending on whether the cells are also configured with other signals / data transmission. For example, as shown in Figure 4, the network device configures three reference signals associated with cells 1, 2, and 3 for the terminal, that is, the three reference signals are bandwidth-aggregated reference signals. In one case, as shown in (a) of Figure 4, in addition to the reference signals for bandwidth aggregation, the transmission configuration of each of the three cells also configures other signals / data transmission. Another case is shown in (b) of Figure 4, the transmission configuration of some of the three cells is only configured with reference signals for bandwidth aggregation, such as the transmission configuration of cell 2, which only configures the reference signals for bandwidth aggregation and does not configure the transmission of other signals / data. However, the transmission of some cells is also configured with other transmissions, such as cells 1 and 3. Another case is shown in (c) of Figure 4, where all three cells are only configured with reference signals for bandwidth aggregation and no other transmissions are configured. The present application proposes that when the first cell is deactivated, the terminal can determine the operation to be performed based on whether the transmission configuration of the multiple cells is only configured with the reference signal of the transmission bandwidth aggregation, thereby avoiding the operational complexity and power consumption caused by performing unnecessary operations.

[0121] In an optional implementation, in the above step 2, after the terminal determines that the first reference signal is associated with a reference signal in a cell other than the first cell, it determines that when the first reference signal is associated with the second reference signal, if the second cell where the second reference signal is located is a secondary cell, the terminal determines whether to deactivate the second cell based on whether the transmission configuration of the second cell is configured to only transmit the second reference signal, wherein at least one cell includes the second cell.

[0122] Specifically, if the transmission configuration of the second cell only configures transmission of the second reference signal, the terminal determines to deactivate the second cell and determines to stop transmitting the second reference signal on the second cell. If the transmission configuration of the second cell only configures transmission of the second reference signal, the terminal may determine to deactivate the second cell and stop maintaining the second cell, thereby reducing power consumption of the terminal. In addition, there is no need for the network device to send indication information to instruct the deactivation of the second cell, thereby reducing resource overhead.

[0123] If the transmission configuration of the second cell includes not only transmission of the second reference signal, the terminal determines to stop transmitting the second reference signal on the second cell. Since the transmission configuration of the second cell includes not only transmission of the second reference signal, but the terminal also needs to receive and / or transmit other signals / data on the second cell, the terminal does not deactivate the second cell and only stops transmitting the second reference signal on the second cell.

[0124] Then, in this optional implementation manner, after the network device notifies the terminal to deactivate the first cell through the first information, the terminal may specifically execute the following steps:

[0125] Step 1: If the first cell is deactivated, execute:

[0126] Step 2: determine not to send a reference signal on the first cell, including the first reference signal;

[0127] Step 3: Determine whether the first reference signal is associated with a reference signal on another cell (such as the second cell). If so, proceed to step 4.

[0128] Step 4: Determine whether the second cell is a secondary cell and whether the transmission configuration of the second cell is configured to transmit only a reference signal associated with the first reference signal. If so, execute steps 5 to 6; otherwise, execute step 6.

[0129] Step 5: Determine to deactivate the second cell;

[0130] Step 6: Determine to stop sending the second reference signal on the second cell.

[0131] Optionally, the terminal may further perform step 7, which includes one or more of the following:

[0132] Stop reporting channel state information (CSI) of the first cell;

[0133] Stop transmission on an uplink shared channel (UL-SCH) of the first cell;

[0134] ceasing transmission on a random access channel (RACH) of the first cell;

[0135] Stop detecting a physical downlink control channel (PDCCH) on the first cell;

[0136] Stop detecting the PDCCH associated with the first cell;

[0137] Stop transmission on the physical uplink control channel (PUCCH) of the first cell.

[0138] In an optional implementation, after receiving the first information and determining to deactivate the first cell, the terminal first determines whether the transmission configuration of the first cell is configured to transmit only the first reference signal. If the transmission configuration of the first cell is configured to transmit only the first reference signal, the terminal determines to stop transmitting the first reference signal on the first cell. If the transmission configuration of the first cell is configured to transmit not only the first reference signal, the terminal determines to stop transmitting the first reference signal on the first cell, and the terminal further determines to perform one or more of the following:

[0139] Stop reporting the channel state information CSI of the first cell;

[0140] Stop transmission on the uplink shared channel UL-SCH of the first cell;

[0141] Stop transmission on a random access channel RACH of the first cell;

[0142] Stop detecting a physical downlink control channel (PDCCH) on the first cell;

[0143] Stop detecting the PDCCH associated with the first cell;

[0144] Stop transmission on the PUCCH of the first cell.

[0145] Specifically, in this embodiment, the terminal may first perform step 1 above. After performing step 1, the terminal determines whether the transmission configuration of the first cell is configured to transmit only the first reference signal. If so, the terminal performs steps 2 to 6 above; if not, the terminal performs steps 2 to 7 above. By adding the step of determining whether the transmission configuration of the first cell is configured to transmit only the first reference signal in this embodiment, unnecessary execution steps of the terminal can be reduced when the first cell is configured to transmit only the first reference signal, thereby reducing implementation complexity and power consumption.

[0146] According to the above solution, if the cell where one of the multiple bandwidth-aggregated reference signals is located is deactivated, the terminal stops transmitting the bandwidth-aggregated reference signal. That is, the terminal stops transmitting both the reference signal for the deactivated cell and the bandwidth-aggregated reference signals associated with the reference signal for that cell located in other cells. This can avoid transmitting reference signals that do not meet bandwidth requirements and reduce resource waste. For example, when bandwidth-aggregated reference signals are used for positioning, stopping transmission of the reference signal for the deactivated cell will result in the bandwidth of the reference signals for other cells being unable to meet the requirements, making it impossible to meet positioning accuracy requirements. Therefore, stopping transmission of reference signals for other cells can reduce unnecessary resource waste.

[0147] It is understood that in order to implement the functions in the above embodiments, the network devices and terminals include hardware structures and / or software modules corresponding to the execution of each function. Those skilled in the art should readily appreciate that, in conjunction with the units and method steps of each example described in the embodiments disclosed in this application, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in hardware or in a manner driven by computer software depends on the specific application scenario and design constraints of the technical solution.

[0148] Figures 5 and 6 are schematic diagrams of the structures of possible communication devices provided in embodiments of the present application. These communication devices can be used to implement the functions of the terminal or network device in the above-mentioned method embodiments, thereby also achieving the beneficial effects possessed by the above-mentioned method embodiments. In the embodiments of the present application, the communication device can be one of the terminals 120a-120j shown in Figure 1, or it can be the network device 110a or 110b shown in Figure 1, or it can be a module (such as a chip or chip system) applied to the terminal or network device.

[0149] The communication device 500 includes a transceiver unit 520, which can be used to receive or send information. The communication device 500 can also include a processing unit 510, which can be used to process instructions or data to implement corresponding operations.

[0150] It should be understood that when the communication device 500 is a chip configured in (or used in) a communication device, the transceiver unit 520 in the communication device 500 can be the input / output interface or circuit of the chip, and the processing unit 510 in the communication device 500 can be the processor in the chip.

[0151] Optionally, the communication device 500 may further include a storage unit 530, which may be used to store instructions or data. The processing unit 510 may execute the instructions or data stored in the storage unit to enable the communication device to perform corresponding operations.

[0152] The communication device 500 can be used to implement the functions of the terminal or network device in the method embodiment shown in FIG. 3 .

[0153] When the communication device 500 is used to implement the functions of a terminal in the method embodiment shown in FIG3 : the transceiver unit 520 is configured to transmit multiple reference signals across multiple cells. The transceiver unit 520 is further configured to receive first information indicating deactivation of a first cell, the multiple cells including the first cell. The processing unit 510 is configured to determine to stop transmitting the multiple reference signals.

[0154] When the communication device 500 is used to implement the functions of the network device in the method embodiment shown in FIG3 , the transceiver unit 520 is configured to receive multiple reference signals from multiple cells. The transceiver unit 520 is further configured to send first information indicating deactivation of a first cell, where the multiple cells include the first cell. The processing unit 510 is configured to determine to stop receiving the multiple reference signals.

[0155] For a more detailed description of the processing unit 510 and the transceiver unit 520 , reference may be made to the relevant description in the method embodiment shown in FIG. 3 .

[0156] It should be understood that the transceiver unit 520 in the communication device 500 can be implemented through a communication interface (such as a transceiver, a transceiver circuit, an input / output interface, or a pin, etc.). When the communication interface is a transceiver, the transceiver can be composed of a receiver and / or a transmitter. The processing unit 510 in the communication device 500 can be implemented by at least one processor. The processing unit 510 in the communication device 500 can also be implemented by at least one logic circuit. Optionally, the communication device 500 also includes a storage unit, which can be implemented by a memory.

[0157] As shown in Figure 6, communication device 600 includes a processor 610 and an interface circuit 620. Processor 610 and interface circuit 620 are coupled to each other. It is understood that interface circuit 620 can be a transceiver or an input / output interface. Optionally, communication device 600 may also include a memory 630 for storing instructions executed by processor 610, input data required by processor 610 to execute instructions, or data generated after processor 610 executes instructions.

[0158] In one implementation, the memory 630 may also be integrated into the processor 610 or independent of the processor 610 .

[0159] When the communication device 600 is used to implement the method shown in FIG. 3 , the processor 610 is used to implement the functions of the processing unit 510 , and the interface circuit 620 is used to implement the functions of the transceiver unit 520 .

[0160] When the communication device is a chip used in a terminal device, the terminal device chip can implement the terminal functions in the above method embodiments. The terminal device chip receives information from other modules in the terminal device (such as a radio frequency module or antenna), and the information is sent by the network device to the terminal device; or the terminal device chip sends information to other modules in the terminal device (such as a radio frequency module or antenna), and the information is sent by the terminal device to the network device.

[0161] When the above-mentioned communication device is a module applied to a network device, the network device module can implement the functions of the network device in the above-mentioned method embodiment. The network device module receives information from other modules in the network device (such as a radio frequency module or an antenna), and the information is sent by the terminal device to the network device; or the network device module sends information to other modules in the network device (such as a radio frequency module or an antenna), and the information is sent by the network device to the terminal device. The network device module here can be a baseband chip of the network device, or it can be a DU or other module. The DU here can be a DU under the open radio access network (O-RAN) architecture.

[0162] It is understood that the processor in the embodiments of the present application may be a central processing unit (CPU), or may be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The general-purpose processor may be a microprocessor or any conventional processor.

[0163] The method steps in the embodiments of the present application can be implemented in hardware or in software instructions that can be executed by a processor. The software instructions can be composed of corresponding software modules, and the software modules can be stored in random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only memory, registers, hard disk, mobile hard disk, CD-ROM or any other form of storage medium well known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and write information to the storage medium. The storage medium can also be an integral part of the processor. The processor and storage medium can be located in an ASIC. In addition, the ASIC can be located in an access network device or a terminal device. The processor and storage medium can also exist in the access network device or the terminal device as discrete components.

[0164] According to the method provided in the embodiment of the application, the embodiment of the present application also provides a computer program product, which includes: computer program code, when the computer program code is executed by one or more processors, it enables the device including the processor to execute the method shown in Figure 3.

[0165] In the above embodiments, all or part of the embodiments may be implemented using software, hardware, firmware, or any combination thereof. When implemented using software, all or part of the embodiments may be implemented in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are performed in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user device, or other programmable device.

[0166] According to the method provided in an embodiment of the present application, an embodiment of the present application also provides a computer-readable storage medium, which stores the above-mentioned computer program or instructions. When the computer program or instructions are executed by one or more processors, the device including the processor executes the method as shown in Figure 3.

[0167] As described above, the computer program or instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer program or instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means. The computer-readable storage medium can be any available medium that can be accessed by a computer, or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium, such as a floppy disk, hard disk, or magnetic tape; an optical medium, such as a digital video disk; or a semiconductor medium, such as a solid-state drive. The computer-readable storage medium can be a volatile or non-volatile storage medium, or can include both volatile and non-volatile types of storage media.

[0168] According to the method provided in the embodiment of the present application, the embodiment of the present application also provides a communication system, including the one or more terminals mentioned above. The system may further include the one or more network devices mentioned above.

[0169] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the devices described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the coupling or direct coupling or communication connection between each other shown or discussed can be through some interface, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0170] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this solution based on actual needs.

[0171] In the various embodiments of the present application, unless otherwise specified or there is a logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationships.

[0172] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. An information transmission method, characterized in that: include: sending multiple reference signals on multiple cells; receiving first information, where the first information is used to instruct deactivation of a first cell, where the multiple cells include the first cell; Determine to stop sending the plurality of reference signals.

2. The method according to claim 1, characterized in that The determining to stop sending the plurality of reference signals comprises: Determine to stop sending a first reference signal on the first cell, the multiple reference signals including the first reference signal; determining whether the first reference signal is associated with a reference signal in a cell other than the first cell; In a case where the first reference signal is associated with a reference signal on at least one cell, determining to stop sending the reference signal on the at least one cell, The multiple cells include the first cell and the at least one cell.

3. The method according to claim 2, characterized in that The method further comprises: In the case that the first reference signal is associated with a second reference signal, if the second cell where the second reference signal is located is a secondary cell, it is determined whether to deactivate the second cell according to whether the transmission configuration of the second cell only configures transmission of the second reference signal, wherein the at least one cell includes the second cell.

4. The method according to claim 3, characterized in that The step of determining, in a case where the first reference signal is associated with a reference signal on at least one cell, to stop sending the reference signal on the at least one cell comprises: In a case where the first reference signal is associated with a second reference signal, if the second cell is a secondary cell, and only transmission of the second reference signal is configured in the transmission configuration of the second cell, determining to deactivate the second cell, and determining to stop sending the second reference signal; In the case where the first reference signal is associated with a second reference signal, if the second cell is a secondary cell and the transmission configuration of the second cell is configured to include not only the transmission of the second reference signal, it is determined to stop sending the second reference signal.

5. The method according to claim 2, characterized in that: The determining to stop sending the first reference signal on the first cell includes: Determining whether the transmission configuration of the first cell is configured to transmit only the first reference signal; If the transmission configuration of the first cell only configures transmission of the first reference signal, determining to stop sending the first reference signal; or, If the transmission configuration on the first cell not only configures transmission of the first reference signal, determine to stop sending the first reference signal on the first cell, and determine to perform one or more of the following: Stop reporting the channel state information CSI of the first cell; Stop transmission on the uplink shared channel UL-SCH of the first cell; Stop transmission on a random access channel RACH of the first cell; Stop detecting a physical downlink control channel PDCCH on the first cell; Stop detecting the PDCCH associated with the first cell; Stop transmission on the PUCCH of the first cell.

6. The method according to any one of claims 1 to 5, characterized in that The method further comprises: Second information is received, where the second information is used to configure an association relationship between the multiple reference signals on the multiple cells.

7. The method according to any one of claims 1 to 6, characterized in that The time domain resource positions of the multiple reference signals are the same; and / or, The multiple reference signals are carrier aggregation reference signals or bandwidth aggregation reference signals; and / or, The multiple reference signals are used for positioning.

8. An information transmission method, characterized in that: include: receiving a plurality of reference signals on a plurality of cells; Sending first information, where the first information is used to instruct deactivation of a first cell, where the multiple cells include the first cell; Determine to stop receiving the plurality of reference signals.

9. The method according to claim 8, characterized in that: The method further comprises: Sending second information, where the second information is used to configure an association relationship between the multiple reference signals on the multiple cells.

10. The method according to claim 8 or 9, characterized in that: The time domain resource positions of the multiple reference signals are the same; and / or, The multiple reference signals are carrier aggregation reference signals or bandwidth aggregation reference signals; and / or, The multiple reference signals are used for positioning.

11. A communication device, characterized in that: include: A transceiver unit, configured to send multiple reference signals on multiple cells; The transceiver unit is further used to receive first information, where the first information is used to instruct to deactivate a first cell, and the multiple cells include the first cell; The processing unit is configured to determine to stop sending the multiple reference signals.

12. The device according to claim 11, characterized in that The processing unit is specifically used for: Determine to stop sending a first reference signal on the first cell, the multiple reference signals including the first reference signal; determining whether the first reference signal is associated with a reference signal in a cell other than the first cell; In a case where the first reference signal is associated with a reference signal on at least one cell, determining to stop sending the reference signal on the at least one cell, The multiple cells include the first cell and the at least one cell.

13. The device according to claim 12, characterized in that The processing unit is further used to determine whether to deactivate a second cell when the first reference signal is associated with a second reference signal and if the second cell where the second reference signal is located is a secondary cell, according to whether only transmission of the second reference signal is configured in the transmission configuration of the second cell, wherein the at least one cell includes the second cell.

14. The device according to claim 13, characterized in that The processing unit is specifically used for: In a case where the first reference signal is associated with a second reference signal, if the second cell is a secondary cell and only the second reference signal is configured to be transmitted in the transmission configuration of the second cell, determining to deactivate the second cell and determining to stop sending the second reference signal; or, In the case where the first reference signal is associated with a second reference signal, if the second cell is a secondary cell and the transmission configuration of the second cell is configured to include not only the transmission of the second reference signal, it is determined to stop sending the second reference signal.

15. The device according to claim 12, characterized in that The processing unit is specifically configured to determine whether the transmission configuration of the first cell only configures transmission of the first reference signal; If the transmission configuration of the first cell only configures transmission of the first reference signal, determining to stop sending the first reference signal; or, If the transmission configuration on the first cell not only configures transmission of the first reference signal, determine to stop sending the first reference signal on the first cell, and determine to perform one or more of the following: Stop reporting the channel state information CSI of the first cell; Stop transmission on the uplink shared channel UL-SCH of the first cell; Stop transmission on a random access channel RACH of the first cell; Stop detecting a physical downlink control channel PDCCH on the first cell; Stop detecting the PDCCH associated with the first cell; Stop transmission on the PUCCH of the first cell.

16. The device according to any one of claims 11 to 15, characterized in that The transceiver unit is further used to receive second information, where the second information is used to configure the association relationship between the multiple reference signals on the multiple cells.

17. The device according to any one of claims 11 to 16, characterized in that The time domain resource positions of the multiple reference signals are the same; and / or, The multiple reference signals are carrier aggregation reference signals or bandwidth aggregation reference signals; and / or, The multiple reference signals are used for positioning.

18. A communication device, characterized in that: include: A transceiver unit, configured to receive multiple reference signals on multiple cells; The transceiver unit is further used to send first information, where the first information is used to indicate deactivation of a first cell, and the multiple cells include the first cell; The processing unit is configured to determine to stop receiving the multiple reference signals.

19. The device according to claim 18, characterized in that The transceiver unit is further used to send second information, where the second information is used to configure the association relationship between the multiple reference signals on the multiple cells.

20. The device according to claim 18 or 19, characterized in that The time domain resource positions of the multiple reference signals are the same; and / or, The multiple reference signals are carrier aggregation reference signals or bandwidth aggregation reference signals; and / or, The multiple reference signals are used for positioning.

21. A communication device, characterized in that: The method comprises a processor coupled to a memory, wherein the processor is used to execute the method according to any one of claims 1 to 7; or the processor is used to execute the method according to any one of claims 8 to 10.

22. A communication device, characterized in that: The method comprises a processor and a communication interface, wherein the processor is used to control the communication interface to implement the method according to any one of claims 1 to 7, or to implement the method according to any one of claims 8 to 10.

23. A computer-readable storage medium, characterized in that: Instructions are stored, and when the instructions are executed on a computer, the computer is caused to perform the method according to any one of claims 1 to 10.

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