Communication method, device and system

Abstract

The embodiment of the invention relates to a communication method, device and system which are used for improving positioning precision and positioning performance. The method comprises the following steps: the terminal equipment receives positioning reference signal configuration information; and under the condition that the positioning reference signal configuration information comprises a physical cell identifier and / or a cell global identifier, if a first condition is satisfied, the terminal equipment determines that a positioning reference signal corresponding to the positioning reference signal configuration information comes from a serving cell.

Description

[0001] This application is a divisional application. The application number of the original application is 202110362322.0, and the original application date is April 2, 2021. The entire content of the original application is incorporated into this application by reference. Technical Field

[0002] The present application relates to the field of wireless communication technology, and in particular to a communication method, device, and system. Background Art

[0003] In a positioning scenario, the network device can send down positioning reference signal (PRS) configuration information. The terminal device can determine which transmission point each PRS comes from based on the PRS configuration information. It then measures the arrival time (difference) or arrival angle of multiple PRSs to determine the distance (difference) or arrival angle between the terminal device and each transmission point, and determines the location of the terminal device based on the coordinates of each transmission point. Therefore, the information carried in the PRS configuration information can be used to calculate the location of the terminal device, and the PRS configuration information does not include additional indication information.

[0004] However, in various scenarios, such as processing collisions between other signals and PRSs, processing open-loop power control for uplink positioning signals, and configuring spatial relationships, it's also necessary to determine whether the PRS originates from a serving cell or a non-serving cell. Existing technologies cannot determine whether a PRS originates from a serving cell or a non-serving cell, resulting in inaccurate processing of collisions between other signals and PRSs, as well as inaccurate configuration of the power and beam of the uplink positioning reference signal. This leads to low positioning accuracy and poor performance. Summary of the Invention

[0005] The embodiments of the present application provide a communication method, device, and system for improving positioning accuracy and positioning performance.

[0006] In a first aspect, a communication method is provided, comprising the following process: a terminal device receives positioning reference signal configuration information; when the positioning reference signal configuration information includes a physical cell identifier and / or a cell global identifier, if a first condition is met, the terminal device determines that the positioning reference signal corresponding to the positioning reference signal configuration information comes from a serving cell.

[0007] In this method, when the positioning reference signal configuration information includes a physical cell identifier and / or a cell global identifier, the terminal device can determine that the positioning reference signal corresponding to the positioning reference signal configuration information comes from the serving cell based on the physical cell identifier and / or cell global identifier included in the positioning reference signal configuration information, and thus can accurately handle the collision between the positioning reference signal and other signals, and accurately configure the power and beam of the uplink positioning signal, thereby improving positioning accuracy and positioning performance.

[0008] In one possible implementation, when the positioning reference signal configuration information includes a physical cell identifier and / or a cell global identifier, if the second condition is met, the terminal device may further determine that the positioning reference signal corresponding to the positioning reference signal configuration information is from a non-serving cell. When the positioning reference signal configuration information includes a physical cell identifier and / or a cell global identifier, the terminal device may further determine that the positioning reference signal corresponding to the positioning reference signal configuration information is from a serving cell, thereby accurately processing collisions between the positioning reference signal and other signals, and accurately configuring the power and beam of the uplink positioning signal, thereby improving positioning accuracy and performance.

[0009] In one possible implementation, when a third condition is met, the terminal device may further determine that the positioning reference signal corresponding to the positioning reference signal configuration information is not associated with any cell, where the third condition includes that the positioning reference signal configuration information does not include a physical cell identifier and a cell global identifier. If the positioning reference signal is not associated with any cell, the positioning reference signal does not come from the same serving cell or non-serving cell as other signals, meaning that the positioning reference signal does not collide with other signals, further improving positioning accuracy and performance.

[0010] In one possible implementation, the first condition includes: the physical cell identifier is the same as the physical cell identifier of the serving cell, and the frequency band of the positioning reference signal is the same as the frequency band corresponding to the serving cell; and / or the physical cell identifier is the same as the physical cell identifier of the serving cell; and / or the cell global identifier is the same as the cell global identifier of the serving cell. In the positioning reference signal configuration information, the physical cell identifier, cell global identifier, and ARFCN (used to determine the frequency band of the positioning reference signal) are optional parameters. The terminal device can compare the parameters provided in the positioning reference signal configuration information with the parameters corresponding to the serving cell to determine that the positioning reference signal corresponding to the positioning reference signal configuration information comes from the serving cell.

[0011] In one possible implementation, when the positioning reference signal configuration information also includes an absolute radio frequency channel number ARFCN, if the ARFCN included in the positioning reference signal configuration information is the same as the ARFCN of the serving cell, the terminal device can also determine that the frequency band where the positioning reference signal is located is the same as the frequency band corresponding to the serving cell, which can further improve the positioning accuracy and positioning performance.

[0012] In one possible implementation, the second condition is: the first condition is not met, and the third condition is not met. For example, the second condition includes one or more of the following: the physical cell identifier is different from the physical cell identifier of the serving cell; the physical cell identifier is the same as the physical cell identifier of the non-serving cell, and the frequency band of the positioning reference signal is the same as the frequency band corresponding to the non-serving cell; the cell global identifier is the same as the cell global identifier of the non-serving cell. The terminal device can determine that the positioning reference signal is from the non-serving cell based on the parameters provided in the positioning reference signal configuration information, thereby improving positioning accuracy and positioning performance.

[0013] In one possible implementation, the terminal device may further receive first signal configuration information, where the first signal configuration information includes a physical cell identifier; based on the physical cell identifier included in the first signal configuration information, the terminal device determines, when a fourth condition is met, that the positioning reference signal corresponding to the positioning reference signal configuration information and the first signal corresponding to the first signal configuration information are from the same serving cell; and when a fifth condition is met, determines that the positioning reference signal corresponding to the positioning reference signal configuration information and the first signal corresponding to the first signal configuration information are from the same non-serving cell. The terminal device can determine that the positioning reference signal and the first signal are from the same serving cell or the same non-serving cell, further accurately handle collisions between the positioning reference signal and other signals, and thereby further improve positioning accuracy and positioning performance.

[0014] For example, the first signal is a synchronization signal block.

[0015] In one possible implementation, the fourth condition includes: the positioning reference signal originates from a serving cell, and the positioning reference signal resides in the same frequency band as the first signal. The terminal device may compare parameters provided in the positioning reference signal configuration information with parameters provided in the first signal configuration information to determine that the positioning reference signal and the first signal originate from the same serving cell, thereby further improving positioning accuracy and performance.

[0016] In a possible implementation, the fourth condition includes: the positioning reference signal comes from a serving cell, and a physical cell identifier corresponding to the positioning reference signal is the same as a physical cell identifier corresponding to the first signal.

[0017] In one possible implementation, the fourth condition includes: the positioning reference signal originates from a serving cell, the physical cell identifier corresponding to the positioning reference signal is the same as the physical cell identifier corresponding to the first signal, and the positioning reference signal is located in the same frequency band as the first signal. This can further improve positioning accuracy and performance.

[0018] Optionally, the fourth condition also includes that the first signal comes from a serving cell.

[0019] In one possible implementation, the fifth condition includes: the positioning reference signal originates from a non-serving cell, and the physical cell identifier corresponding to the positioning reference signal is the same as the physical cell identifier corresponding to the first signal. The terminal device may compare parameters provided in the positioning reference signal configuration information with parameters provided in the first signal configuration information to determine that the positioning reference signal and the first signal originate from the same non-serving cell, thereby further improving positioning accuracy and performance.

[0020] Optionally, the fifth condition also includes that the first signal comes from a non-service cell.

[0021] In one possible implementation, the fifth condition includes: the positioning reference signal originates from a non-serving cell, the physical cell identifier corresponding to the positioning reference signal is the same as the physical cell identifier corresponding to the first signal, and the frequency band of the positioning reference signal is the same as the frequency band of the first signal. The terminal device may compare parameters provided in the positioning reference signal configuration information with parameters provided in the first signal configuration information to determine that the positioning reference signal and the first signal originate from the same non-serving cell, thereby further improving positioning accuracy and performance.

[0022] Optionally, the fifth condition also includes that the first signal comes from a non-service cell.

[0023] According to a second aspect, a communication method is provided, comprising the following processes: a terminal device receives positioning reference signal configuration information; the terminal device receives first signal configuration information, the first signal configuration information including a physical cell identifier; when the positioning reference signal configuration information includes a physical cell identifier and / or a cell global identifier, if a fourth condition is met, the terminal device determines that the positioning reference signal corresponding to the positioning reference signal configuration information and the first signal corresponding to the first signal configuration information are from the same service cell.

[0024] In one possible implementation, when the positioning reference signal configuration information includes a physical cell identifier and / or a cell global identifier, if the fifth condition is met, the terminal device may also determine that the positioning reference signal corresponding to the positioning reference signal configuration information and the first signal corresponding to the first signal configuration information come from the same non-service cell.

[0025] Optionally, the positioning reference signal configuration information may further include a cell global identifier.

[0026] In one possible implementation, the first signal is a synchronization signal block.

[0027] In one possible implementation, the fourth condition includes: the positioning reference signal comes from a serving cell, and the frequency band of the positioning reference signal is the same as the frequency band of the first signal. Optionally, the fourth condition also includes: the first signal comes from a serving cell.

[0028] In a possible implementation, the fourth condition includes: the positioning reference signal comes from a serving cell, and a physical cell identifier corresponding to the positioning reference signal is the same as a physical cell identifier corresponding to the first signal.

[0029] In one possible implementation, the fourth condition includes: the positioning reference signal comes from a serving cell, the physical cell identifier corresponding to the positioning reference signal is the same as the physical cell identifier corresponding to the first signal, and the frequency band of the positioning reference signal is the same as the frequency band of the first signal.

[0030] In one possible implementation, the fifth condition includes: the positioning reference signal is from a non-serving cell, and the physical cell identifier corresponding to the positioning reference signal is the same as the physical cell identifier corresponding to the first signal. Optionally, the fifth condition also includes: the first signal is from a non-serving cell.

[0031] In one possible implementation, the fifth condition includes: the positioning reference signal is from a non-serving cell, the physical cell identifier corresponding to the positioning reference signal is the same as the physical cell identifier corresponding to the first signal, and the frequency band of the positioning reference signal is the same as the frequency band of the first signal. Optionally, the fifth condition also includes: the first signal is from a non-serving cell.

[0032] According to a third aspect, a communication method is provided, comprising the following process: a terminal device receives positioning reference signal configuration information, wherein the positioning reference signal configuration information is used to indicate that the positioning reference signal corresponding to the positioning reference signal configuration information comes from a serving cell, or is used to indicate that the positioning reference signal corresponding to the positioning reference signal configuration comes from a non-serving cell.

[0033] Optionally, the positioning reference signal configuration information includes first indication information, and the first indication information is used to indicate that the positioning reference signal corresponding to the positioning reference signal configuration information comes from a serving cell, or to indicate that the positioning reference signal corresponding to the positioning reference signal configuration comes from a non-serving cell.

[0034] In this method, the terminal device can directly determine whether the positioning reference signal corresponding to the positioning reference signal configuration information comes from a serving cell or a non-serving cell based on the indication of the positioning reference signal configuration information, and then accurately handle the collision between the positioning reference signal and other signals, and accurately configure the power and beam of the uplink positioning signal, thereby improving positioning accuracy and positioning performance.

[0035] In a fourth aspect, a communication system is provided, the communication system comprising a network device and a terminal device;

[0036] The network device is configured to send positioning reference signal configuration information;

[0037] The terminal device is used to receive the positioning reference signal configuration information; when the positioning reference signal configuration information includes a physical cell identifier and / or a cell global identifier, if the first condition is met, determine that the positioning reference signal corresponding to the positioning reference signal configuration information comes from a serving cell.

[0038] In a possible implementation, when the positioning reference signal configuration information includes a physical cell identifier and / or a cell global identifier, if the second condition is met, the positioning reference signal corresponding to the positioning reference signal configuration information comes from a non-serving cell.

[0039] In a possible implementation, the terminal device is further used to determine that the positioning reference signal corresponding to the positioning reference signal configuration information is not associated with any cell when a third condition is met, and the third condition includes that the positioning reference signal configuration information does not include a physical cell identifier and a cell global identifier.

[0040] In one possible implementation, the first condition includes: the physical cell identifier is the same as the physical cell identifier of the serving cell, and the frequency band of the positioning reference signal is the same as the frequency band corresponding to the serving cell; and / or the physical cell identifier is the same as the physical cell identifier of the serving cell; and / or the cell global identifier is the same as the cell global identifier of the serving cell.

[0041] In one possible implementation, the terminal device is further used to determine that, when the positioning reference signal configuration information also includes an absolute radio frequency channel number ARFCN, if the ARFCN included in the positioning reference signal configuration information is the same as the ARFCN of the serving cell, the frequency band in which the positioning reference signal is located is the same as the frequency band corresponding to the serving cell.

[0042] In a possible implementation, the second condition is: the first condition is not met, and the third condition is not met.

[0043] In a possible implementation, the network device is further configured to send first signal configuration information, where the first signal configuration information includes a physical cell identifier;

[0044] The terminal device is also used to receive the first signal configuration information; and according to the physical cell identifier included in the first signal configuration information, when the fourth condition is met, determine that the positioning reference signal corresponding to the positioning reference signal configuration information and the first signal corresponding to the first signal configuration information are from the same service cell; when the fifth condition is met, determine that the positioning reference signal corresponding to the positioning reference signal configuration information and the first signal corresponding to the first signal configuration information are from the same non-service cell.

[0045] In one possible implementation, the first signal is a synchronization signal block.

[0046] In a possible implementation, the fourth condition includes: the positioning reference signal comes from a serving cell, and a frequency band where the positioning reference signal is located is the same as a frequency band where the first signal is located.

[0047] In a possible implementation, the fourth condition includes: the positioning reference signal comes from a serving cell, and a physical cell identifier corresponding to the positioning reference signal is the same as a physical cell identifier corresponding to the first signal.

[0048] In one possible implementation, the fourth condition includes: the positioning reference signal originates from a serving cell, the physical cell identifier corresponding to the positioning reference signal is the same as the physical cell identifier corresponding to the first signal, and the positioning reference signal is located in the same frequency band as the first signal. This can further improve positioning accuracy and performance.

[0049] In a possible implementation, the fifth condition includes: the positioning reference signal comes from a non-serving cell, and a physical cell identifier corresponding to the positioning reference signal is the same as a physical cell identifier corresponding to the first signal.

[0050] In one possible implementation, the fifth condition includes: the positioning reference signal comes from a non-serving cell, the physical cell identifier corresponding to the positioning reference signal is the same as the physical cell identifier corresponding to the first signal, and the frequency band of the positioning reference signal is the same as the frequency band of the first signal.

[0051] In a fifth aspect, a communication system is provided, the communication system comprising a network device and a terminal device;

[0052] The network device is configured to send positioning reference signal configuration information, where the positioning reference signal configuration information is used to indicate that a positioning reference signal corresponding to the positioning reference signal configuration information is from a serving cell, or is used to indicate that a positioning reference signal corresponding to the positioning reference signal configuration is from a non-serving cell;

[0053] The terminal device is used to receive the positioning reference signal configuration information.

[0054] Optionally, the positioning reference signal configuration information includes first indication information, and the first indication information is used to indicate that the positioning reference signal corresponding to the positioning reference signal configuration information comes from a serving cell, or to indicate that the positioning reference signal corresponding to the positioning reference signal configuration comes from a non-serving cell.

[0055] Before sending the positioning reference signal configuration information, the network device may determine the serving cell of the terminal device, and thus make corresponding indications in the positioning reference signal configuration information.

[0056] In a sixth aspect, a communication device is provided. The device provided in this application has the function of implementing the above-mentioned method aspects, and includes means for performing the steps or functions corresponding to the steps or functions described in the above-mentioned method aspects. The steps or functions can be implemented by software, hardware (such as circuits), or a combination of hardware and software.

[0057] In one possible design, the apparatus includes one or more processors and a communication unit. The one or more processors are configured to support the apparatus in performing the functions of the method.

[0058] Optionally, the device may further include one or more memories coupled to the processor to store program instructions and / or data necessary for the device. The one or more memories may be integrated with the processor or may be separate from the processor. This application is not limited thereto.

[0059] In another possible design, the above-mentioned device includes a transceiver, a processor, and a memory. The processor is used to control the transceiver or input / output circuit to transmit and receive signals, the memory is used to store a computer program, and the processor is used to execute the computer program in the memory, so that the device performs the method of the first aspect, the second aspect, the third aspect, or any possible implementation of the first aspect, the second aspect, or the third aspect.

[0060] In one possible design, the apparatus includes one or more processors and a communication unit. The one or more processors are configured to support the apparatus in performing the functions of the method.

[0061] Optionally, the apparatus may further include one or more memories coupled to the processor to store program instructions and / or data necessary for the terminal device. The one or more memories may be integrated with the processor or may be provided separately from the processor. This application is not limited thereto.

[0062] In another possible design, the above-mentioned device includes a transceiver, a processor, and a memory. The processor is used to control the transceiver or input / output circuit to transmit and receive signals, the memory is used to store a computer program, and the processor is used to execute the computer program in the memory, so that the device performs the method of the first aspect, the second aspect, the third aspect, or any possible implementation of the first aspect, the second aspect, or the third aspect.

[0063] In the seventh aspect, a computer-readable storage medium is provided for storing a computer program, which includes instructions for executing the method in the first aspect, the second aspect, the third aspect, or any possible implementation of the first aspect, the second aspect, and the third aspect.

[0064] In an eighth aspect, a computer program product is provided, comprising: a computer program code, which, when executed on a computer, enables the computer to execute the method of the first aspect, the second aspect, the third aspect, or any possible implementation of the first aspect, the second aspect, or the third aspect.

[0065] In a ninth aspect, a chip system is provided, which includes a transceiver for implementing the functions in the methods of the above aspects, for example, receiving or sending data and / or information involved in the above methods.

[0066] In a tenth aspect, a communication device is provided, comprising: a processor and an interface circuit, the interface circuit being configured to communicate with a module external to the communication device; the processor being configured to execute a computer program or instruction to perform the method described in any of the above aspects. The communication device may be the terminal device described in the first, second, or third aspect, or a device including the terminal device, or a device included in the terminal device, such as a chip.

[0067] Alternatively, the interface circuit can be a code / data read / write interface circuit, which is used to receive computer execution instructions (the computer execution instructions are stored in the memory, may be read directly from the memory, or may pass through other devices) and transmit them to the processor so that the processor runs the computer execution instructions to execute the method described in any of the above aspects.

[0068] In some possible designs, the communication device may be a chip or a chip system.

[0069] For the technical effects that can be achieved in the above-mentioned second aspect and the fourth to tenth aspects, please refer to the description of the technical effects that can be achieved in the above-mentioned first aspect or third aspect, and no further details will be given here. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] Figure 1 A schematic diagram of the architecture of a communication system provided in an embodiment of the present application;

[0071] Figure 2 A schematic diagram of a positioning process;

[0072] Figure 3 A schematic diagram of the architecture of a communication system;

[0073] Figure 4 A schematic diagram of a communication process provided in an embodiment of the present application;

[0074] Figure 5 A schematic diagram of a communication process provided in an embodiment of the present application;

[0075] Figure 6 A schematic diagram of a positioning process provided in an embodiment of the present application;

[0076] Figure 7 A schematic diagram of the architecture of a communication system provided in an embodiment of the present application;

[0077] Figure 8 A schematic diagram of the architecture of a communication system provided in an embodiment of the present application;

[0078] Figure 9 A schematic diagram of the architecture of a communication device provided in an embodiment of the present application;

[0079] Figure 10 A schematic diagram of the architecture of a communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0080] The present application will be described in further detail below with reference to the accompanying drawings.

[0081] This application will present various aspects, embodiments, or features in the context of systems that may include multiple devices, components, modules, etc. It should be understood and appreciated that each system may include additional devices, components, modules, etc., and / or may not include all of the devices, components, modules, etc. discussed in conjunction with the figures. Furthermore, combinations of these aspects may also be used.

[0082] Additionally, in the embodiments of this application, the word "exemplary" is used to indicate an example, illustration, or description. Any embodiment or design described in this application as "exemplary" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of the word "exemplary" is intended to present concepts in a concrete way.

[0083] The network architecture and business scenarios described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided in the embodiments of the present application. Ordinary technicians in this field will know that with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0084] The following explains some of the terms used in the embodiments of the present application to facilitate understanding by those skilled in the art.

[0085] 1) A terminal device, also known as a user terminal, is a device with wireless transceiver capabilities that can communicate with one or more core network (CN) devices (or core devices) via an access network device (or access device) in a radio access network (RAN).

[0086] User equipment can also be called an access terminal, terminal, subscriber unit, subscriber station, mobile station (MS), mobile station, remote station, remote terminal, mobile device, subscriber unit, user terminal, user agent, or user device. User equipment can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; can also be deployed on the water (such as ships); can also be deployed in the air (for example, on airplanes, balloons, and satellites). User equipment can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a smart phone, a mobile phone, a wireless local loop (WLL) station, a wireless data card, a personal digital assistant (PDA), a tablet computer, a wireless modem, a handset, a laptop computer, a machine type communication (MTC) terminal, etc. Alternatively, the user equipment may also be a handheld device with wireless communication capabilities, a computing device, or other device connected to a wireless modem, an in-vehicle device, a wearable device, an unmanned aerial vehicle device, or a terminal in the Internet of Things, the Internet of Vehicles, a terminal of any form in a 5G network and future networks, a relay user equipment, or a terminal in a future-evolved public land mobile network (PLMN), etc. Among them, the relay user equipment may be, for example, a 5G residential gateway (RG). For example, the user equipment may be a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote edical, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, etc. The embodiments of the present application do not limit the type or category of terminal equipment.

[0087] In the positioning scenario, the target to be positioned may be a terminal device. In the embodiments of the present application, the target to be positioned is mainly described as a terminal device. The solutions provided in the embodiments of the present application are also applicable to other targets to be positioned.

[0088] 2) Network equipment refers to equipment that can provide wireless access functions for terminals. Among them, network equipment can support at least one wireless communication technology, such as long-term evolution (LTE), new radio (NR), wideband code division multiple access (WCDMA), etc.

[0089] For example, network equipment may include access network equipment. Exemplary network equipment includes, but is not limited to, evolved node Bs (eNBs) and / or next-generation base stations or generation node Bs (gNBs) in 5G networks. An eNB is a device deployed in a wireless access network that meets 4G standards and provides wireless communication capabilities for UEs. An eNB may include various forms of macro base stations, micro base stations (also known as small cells), relay stations, access points, wearable devices, and in-vehicle equipment. An eNB may also be a transmission and reception point (TRP). A gNB is a device deployed in a wireless access network that meets 5G standards and provides wireless communication capabilities for UEs. A gNB may include various forms of macro base stations, micro base stations (also known as small cells), relay stations, access points, wearable devices, and in-vehicle equipment. A gNB may also be a TRP or a transmission measurement function (TMF). A gNB may include a central unit (CU) and a distributed unit (DU) integrated within the gNB. The network equipment may also include a radio network controller (RNC), a node B (NB), a base station controller (BSC), a base transceiver station (BTS), a home base station (e.g., home evolved node B, or home node B, HNB), a baseband unit (BBU), a transmitting point (TP), a mobile switching center, a small cell, a micro cell, etc. The network equipment may also be a radio controller in a cloud radio access network (CRAN) scenario, or the network equipment may be a relay station, an access point, an in-vehicle device, a terminal, a wearable device, a network device in future mobile communications, or a network device in a future evolved public mobile land network (PLMN), etc.

[0090] For another example, the network device may include a core network (CN) device, and the core network device may include, for example, an access and mobility management function (AMF) and the like.

[0091] In the positioning scenario, the network device may further include a location management function (LMF), which may be a device or component that provides positioning functionality for the terminal device. Optionally, the LMF is deployed in the core network.

[0092] In a positioning scenario, the network device can send a PRS to the terminal device. The network device can be called a signal transmitter, and the terminal device can be called a signal receiver. The PRS, also known as a measurement signal, is a signal used to measure the terminal device's location. The network device can be a transmission point, a base station, or a LMF. The transmission point can be a transmission point (TP) or a TRP. The transmission point can belong to the terminal device's serving cell, a non-serving cell, or no cell at all.

[0093] 3) Positioning technology: A technology that determines the location of a terminal device based on the arrival time (difference) and / or arrival angle of multiple PRS signals arriving at the terminal device. Positioning technologies include but are not limited to downlink time difference of arrival (DL-TDOA), downlink angle of departure (DL-AOD), uplink time difference of arrival (UL-TDOA), uplink angle of arrival (UL-AOA), and multi-cell round trip time (multi-RTT).

[0094] DL-TDOA, UL-TDOA, and multi-RTT positioning technologies are based on time of arrival. Specifically, a terminal device measures the arrival time (difference) of multiple PRS signals to determine the distance (difference) between the terminal device and each transmission point, thereby determining the terminal device's location. DL-AOD and UL-AOA positioning technologies are based on angle of arrival. Specifically, a terminal device measures the arrival angle of multiple PRS signals to determine the angle between the terminal device and each transmission point, thereby determining the terminal device's location.

[0095] For example, the positioning technology is applicable to secure positioning services in the industrial field.

[0096] The positioning scenarios involved in the embodiments of the present application may include positioning scenarios in indoor environments, and may also include positioning scenarios in outdoor environments (such as industrial park environments), without limitation.

[0097] In this application, "and / or" describes the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0098] The term "plurality" in this application refers to two or more.

[0099] In addition, it should be understood that, in the description of this application, words such as "first" and "second" are only used for the purpose of distinguishing the description, and cannot be understood as indicating or implying relative importance, nor can they be understood as indicating or implying order.

[0100] The technical solutions of the embodiments of the present application can be applied to various communication systems (also called mobile communication systems or wireless communication systems). Communication systems generally include but are not limited to 4G networks, LTE systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, universal mobile telecommunication systems (UMTS), worldwide interoperability for microwave access (WiMAX) communication systems, 5G communication systems or NR, and other future communication systems such as 6G.

[0101] like Figure 1 The figure shows a possible communication system architecture, including terminal equipment (UE), access network equipment (such as Figure 1 Next generation (ng) - eNB and gNB), core network equipment (such as Figure 1 Optionally, the communication system architecture also includes an enhanced serving mobile location center (E-SMLC) and an entity storing a service location protocol (SLP). Optionally, the ng-eNB may include one or more transmission points (TPs), and the gNB may include one or more transmission points (TPs).

[0102] The meanings of the LTE-Uu interface between ng-eNB and UE, the NR-Uu interface between gNB and UE, the NG-C interface between ng-eNB and AMF, the NG-C interface between gNB and AMF, the NLs interface between LMF and AMF, and the Xn interface between ng-eNB and gNB can be found in the 3GPP standard protocol. This application does not limit the meanings of the above interfaces. It should be noted that Figure 1 The interface name between the various network functions is only an example. In a specific implementation, the interface name of the system architecture may also be other names, which is not limited in this application.

[0103] See also Figure 2 This section describes the positioning process. The LMF requests PRS configuration information from a transmission point (typically multiple transmission points) via higher-layer signaling. The transmission point then provides the PRS configuration information to the LMF via higher-layer signaling. The LMF sends the PRS configuration information for each transmission point to the UE via LTE Positioning Protocol (LPP) signaling. Each transmission point sends a PRS to the UE. The UE measures each received PRS based on the PRS configuration information for each transmission point. The UE reports the measurement results to the LMF, which estimates the UE's position based on the reported measurement results.

[0104] Taking DL-TDOA as an example, combined with Figure 3 , the process of LMF estimating the UE's position is explained. Figure 3 There are three transmission points in the network, namely transmission point 1, transmission point 2 and transmission point 3. The coordinates of transmission point 1 are known to be (x1, y1), the coordinates of transmission point 2 are known to be (x2, y2), and the coordinates of transmission point 3 are known to be (x3, y3). Assume that the coordinates of the UE to be located are (x UE ,y UE ), where x UE and y UE Taking transmission point 1 as the reference transmission point, the UE measures the arrival time difference Δt between the PRS of transmission point 2 and the PRS of transmission point 1. 21 , and the arrival time difference Δt between the PRS of transmission point 3 and the PRS of transmission point 1 31 According to the definition of a hyperbola (i.e., the distance difference from two fixed points is a constant), the UE is located on the hyperbola with transmission points 1 and 2 as foci, resulting in equation (1). The UE is also located on the hyperbola with transmission points 1 and 3 as foci, resulting in equation (2).

[0105]

[0106] where c is the speed of light, so there are only two unknowns x to be solvedUE and y UE , the UE's location coordinates can be calculated by combining equations (1) and (2).

[0107] As can be seen, the UE or LMF knows which transmission point each PRS comes from and the coordinates of each transmission point, so it can calculate the UE's location. Therefore, the PRS configuration information does not necessarily include additional indication information. However, in the following cases, it is necessary to consider whether the PRS comes from the serving cell or non-serving cell.

[0108] The first possible scenario is collision processing of a synchronization signal and a physical broadcast channel (PBCH) block (SSB) with a PRS.

[0109] If the base station determines that there are SSB and PRS to be sent on a time-frequency resource, the base station sends the SSB on the time-frequency resource but does not send the PRS.

[0110] Before receiving the PRS, the UE determines whether there is an SSB (or the time-frequency resource of the SSB) on the orthogonal frequency division multiplexing (OFDM) symbol where the PRS resource is located. If there is an SSB on these OFDM symbols that is in the same serving cell as the PRS, the UE does not receive the PRS of the serving cell. Alternatively, if there is an SSB on these OFDM symbols that is in the same non-serving cell as the PRS, the UE does not receive the PRS of the non-serving cell. This can avoid unnecessary power consumption by the UE and make the UE more power-efficient.

[0111] For example, if a transmission point determines that the SSB and PRS of the same serving cell collide, the transmission point does not transmit the PRS. However, if the UE cannot correctly determine that the SSB and PRS collide, the UE will still detect the PRS, even though the transmission point has not actually transmitted the PRS. The UE will then incorrectly detect the PRS (e.g., due to a time of arrival (TOA) measurement error), affecting the positioning accuracy and performance of the downlink positioning technology.

[0112] For example, even if the SSB and PRS do not actually collide, the transmission point will still send the PRS. However, if the UE mistakenly believes that the SSB and PRS have collided, it will not detect the PRS, resulting in missed PRS detection, which will also affect the positioning accuracy and performance of the downlink positioning technology.

[0113] The second possible scenario is open-loop power control processing and spatial relationship configuration processing of a sounding reference signal (SRS).

[0114] Currently, the PRS can be configured as the path loss reference signal for the uplink positioning SRS to achieve power configuration. Specifically, the SRS can be configured with the PRS of the serving cell or the PRS of non-serving cells.

[0115] The goal is to support using PRS as the spatial relation reference signal of SRS to implement beam configuration. Specifically, the SRS can be configured with the PRS of the serving cell or the PRS of non-serving cells.

[0116] For example, the UE wants to send SRS based on the PRS of the serving cell, but due to UE configuration errors, the UE may send SRS based on the PRS of the non-serving cell, resulting in power configuration errors or beam configuration errors, affecting the positioning accuracy and positioning performance of the uplink positioning technology.

[0117] In summary, the relevant technology cannot determine whether the PRS comes from the serving cell or the non-serving cell, resulting in the inability to accurately handle the collision of SSB and PRS, and the inability to accurately configure the power and beam of the uplink positioning SRS. There are problems of low positioning accuracy and poor positioning performance. Therefore, a technical solution is urgently needed to distinguish whether the PRS comes from the serving cell or the non-serving cell.

[0118] Based on this, an embodiment of the present application provides a communication method. In this method, a terminal device can, based on the physical cell identifier and / or cell global identifier included in the positioning reference signal configuration information, determine that the positioning reference signal corresponding to the positioning reference signal configuration information is from a serving cell when a first condition is met, and determine that the positioning reference signal corresponding to the positioning reference signal configuration information is from a non-serving cell when a second condition is met. Therefore, the terminal device can determine whether the positioning reference signal is from a serving cell or a non-serving cell, and can then accurately handle collisions between the positioning reference signal and other signals, as well as accurately configure the power and beam of the uplink positioning signal, thereby improving positioning accuracy and performance.

[0119] The communication method improved by the embodiment of the present application can be applied to Figure 1 or Figure 3 In the communication system shown. Figure 4 A possible communication process provided in an embodiment of the present application includes:

[0120] S401: The terminal device receives positioning reference signal configuration information.

[0121] Optionally, the positioning management function (LMF) may send positioning reference signal configuration information for each transmission point to the terminal device, and the terminal device may receive the positioning reference signal configuration information from the LMF. Alternatively, the transmission point may send its own positioning reference signal configuration information to the terminal device, and the terminal device may receive the positioning reference signal configuration information from the transmission point. The transmission point may belong to a serving cell, a non-serving cell, or neither cell.

[0122] Positioning reference signal configuration information includes, but is not limited to, one or more of the following information: a transmission point identifier, a physical cell identifier, a cell global identifier, a frequency band where the positioning reference signal resides, and positioning reference signal resources. In one possible scenario, the positioning reference signal configuration information includes the physical cell identifier and / or the cell global identifier. In another possible scenario, the positioning reference signal configuration information does not include the physical cell identifier and the cell global identifier.

[0123] In a possible example, the positioning reference signal is a PRS.

[0124] For example, the positioning reference signal configuration information is as follows:

[0125]

[0126] The dl-PRS-ID-r16 field is a transmission point identifier (or serial number), which indicates the transmission point from which the PRS (i.e., the PRS corresponding to the positioning reference signal) originates. The value range of the dl-PRS-ID-r16 field is (0, 255). The dl-PRS-ID-r16 field is mandatory.

[0127] The nr-PhysCellID-r16 field is a physical cell identifier, that is, it is used to indicate the physical cell identifier (PCI) where the PRS is located. The value range of the nr-PhysCellID-r16 field is (0, 1007). The nr-PhysCellID-r16 field is optional.

[0128] The nr-CellGlobalID-r16 field is the cell global identifier, that is, the global cell identity (GCI) used to indicate the PRS. The GCI is globally unique. The nr-CellGlobalID-r16 field is optional.

[0129] The nr-ARFCN-r16 field is used to indicate the frequency band (ie, absolute frequency position or frequency layer) where the PRS is located. The nr-ARFCN-r16 field is optional.

[0130] The nr-DL-PRS-Info-r16 field is used to indicate the PRS resources of the transmission point. For example, the information of the nr-DL-PRS-Info-r16 field is as follows:

[0131]

[0132] Among them, the nr-DL-PRS-ResourceID-List-r16 field is the identifier of the PRS resource.

[0133] The nr-DL-PRS-ResourceSetID-r16 field is the identifier of the PRS resource set.

[0134] S402: When the positioning reference signal configuration information includes a physical cell identifier and / or a cell global identifier, if the first condition is met, the terminal device determines that the positioning reference signal corresponding to the positioning reference signal configuration information comes from the serving cell.

[0135] Generally, after a terminal device accesses a serving cell, it can obtain information about the serving cell. For example, the serving cell information includes one or more of the following: the serving cell's physical cell identifier, the serving cell's global cell identifier, the frequency band corresponding to the serving cell, etc. The frequency band corresponding to the serving cell refers to the position of the serving cell in the spectrum and the bandwidth occupied. Optionally, if the terminal device does not obtain the serving cell information after accessing the serving cell, the serving cell or LMF may send the serving cell information to the terminal device.

[0136] The first condition includes: the physical cell identifier included in the positioning reference signal configuration information is the same as the physical cell identifier of the serving cell, and the frequency band of the positioning reference signal is the same as the frequency band corresponding to the serving cell; and / or the physical cell identifier included in the positioning reference signal configuration information is the same as the physical cell identifier of the serving cell; and / or the cell global identifier included in the positioning reference signal configuration information is the same as the cell global identifier of the serving cell. It is understood that when there is only one serving cell, if the terminal device determines that the physical cell identifier included in the positioning reference signal configuration information is the same as the physical cell identifier of the serving cell, it can determine that the positioning reference signal corresponding to the positioning reference signal is from the serving cell.

[0137] Exemplarily, when the positioning reference signal configuration information also includes the frequency band where the positioning reference signal is located, and the frequency band where the positioning reference signal is located is indicated by an absolute ratio frequency channel number (ARFCN), if the ARFCN included in the positioning reference signal configuration information is the same as the ARFCN of the serving cell, the terminal device can determine that the frequency band where the positioning reference signal is located is the same as the frequency band corresponding to the serving cell.

[0138] Taking the above-mentioned positioning reference signal configuration information including one or more of nr-PhysCellID-r16, nr-CellGlobalID-r16, and nr-ARFCN-r16 as an example, if at least one of the two parameters nr-PhysCellID-r16 and nr-CellGlobalID-r16 is provided, and one or more parameters of nr-PhysCellID-r16, nr-CellGlobalID-r16, and nr-ARFCN-r16 associated with dl-PRS-ID-r16 are respectively the same as the corresponding one or more parameters in the physical cell identifier, global cell identifier, and ARFCN of the serving cell, the terminal device can determine that the positioning reference signal comes from the serving cell, and the first condition is met.

[0139] For example, when the positioning reference signal configuration information includes nr-PhysCellID-r16, if nr-PhysCellID-r16 is the same as the physical cell identifier (PCI) of the serving cell, and the frequency band of the positioning reference signal is the same as the frequency band corresponding to the serving cell, the terminal device can determine that the positioning reference signal comes from the serving cell. At this time, if the positioning reference signal configuration information does not include nr-ARFCN-r16, the terminal device can determine the frequency band of the positioning reference signal based on other fields in the positioning reference signal configuration information (such as the pointA field).

[0140] When the positioning reference signal configuration information includes nr-CellGlobalID-r16, if the nr-CellGlobalID-r16 is the same as the cell global identifier (CGI) of the serving cell, the terminal device can determine that the positioning reference signal comes from the serving cell.

[0141] When the positioning reference signal configuration information includes nr-PhysCellID-r16 and nr-CellGlobalID-r16, if the nr-PhysCellID-r16 is the same as the physical cell identifier of the serving cell, and the nr-CellGlobalID-r16 is the same as the cell global identifier of the serving cell, the terminal device can determine that the positioning reference signal comes from the serving cell.

[0142] When the positioning reference signal configuration information includes nr-PhysCellID-r16 and nr-ARFCN-r16, if the nr-PhysCellID-r16 is the same as the physical cell identifier of the serving cell, and the nr-ARFCN-r16 is the same as the ARFCN of the serving cell, the terminal device can determine that the positioning reference signal comes from the serving cell.

[0143] When the positioning reference signal configuration information includes nr-CellGlobalID-r16 and nr-ARFCN-r16, if the nr-CellGlobalID-r16 is the same as the cell global identifier of the serving cell, and the nr-ARFCN-r16 is the same as the ARFCN of the serving cell, the terminal device can determine that the positioning reference signal comes from the serving cell.

[0144] When the positioning reference signal configuration information includes nr-PhysCellID-r16, nr-CellGlobalID-r16 and nr-ARFCN-r16, if the nr-PhysCellID-r16 is the same as the physical cell identifier of the serving cell, the nr-CellGlobalID-r16 is the same as the cell global identifier of the serving cell, and the nr-ARFCN-r16 is the same as the ARFCN of the serving cell, the terminal device can determine that the positioning reference signal comes from the serving cell.

[0145] In one possible scenario, the positioning reference signal corresponding to the positioning reference signal configuration is not associated with any cell, that is, the positioning reference signal belongs to neither a serving cell nor a non-serving cell. For example, when the third condition is met, the terminal device may also determine that the positioning reference signal corresponding to the positioning reference signal configuration information is not associated with any cell. The third condition includes: the positioning reference signal configuration information does not include a physical cell identifier and a cell global identifier.

[0146] Optionally, when the positioning reference signal configuration information includes a physical cell identifier and / or a cell global identifier, if the second condition is met, the terminal device may determine that the positioning reference signal corresponding to the positioning reference signal configuration information comes from a non-serving cell.

[0147] The second condition is: the first condition and the third condition are not met. Regardless of whether the terminal device can obtain information about non-serving cells, if the first condition and the third condition are not met, the terminal device can determine that the physical cell identifier and / or cell global identifier included in the positioning reference signal configuration information meets the second condition.

[0148] In one possible manner, the terminal device can determine that the positioning reference signal comes from a non-service cell based on the physical cell identifier and / or cell global identifier included in the positioning reference signal configuration information. If it is determined that the physical cell identifier included in the positioning reference signal configuration information is different from the physical cell identifier of the serving cell, and / or the cell global identifier included in the positioning reference signal configuration information is different from the cell global identifier of the serving cell, the terminal device can determine that the positioning reference signal comes from a non-service cell.

[0149] If the terminal device obtains information of a non-serving cell, the second condition may specifically include: a physical cell identifier included in the positioning reference signal configuration information is the same as the physical cell identifier of the non-serving cell, and a frequency band in which the positioning reference signal is located is the same as the frequency band corresponding to the non-serving cell; and / or a cell global identifier included in the positioning reference signal configuration information is the same as the cell global identifier of the non-serving cell.

[0150] It is understood that before receiving a positioning reference signal, the terminal device receives the positioning reference signal configuration information for the positioning reference signal. That is, in S401 and S402, the terminal device has not yet received the positioning reference signal corresponding to the positioning reference signal configuration information. The "positioning reference signal" involved here can be understood as a positioning reference signal resource or a positioning reference signal sequence, etc.

[0151] Through the communication method provided in the embodiment of the present application, the terminal device can determine whether the positioning reference signal corresponding to the positioning reference signal configuration information is from a serving cell or a non-serving cell based on the physical cell identifier and / or cell global identifier included in the positioning reference signal configuration information, and thus can accurately handle the collision between the positioning reference signal and other signals, and accurately configure the power and beam of the uplink positioning signal, thereby improving positioning accuracy and positioning performance.

[0152] Embodiments of the present application may also provide another technical solution for determining whether a positioning reference signal is from a serving cell or a non-serving cell. For example, a terminal device receives positioning reference signal configuration information from a network device, where the positioning reference signal configuration information indicates that the positioning reference signal corresponding to the positioning reference signal configuration information is from a serving cell, or indicates that the positioning reference signal corresponding to the positioning reference signal configuration is from a non-serving cell.

[0153] The network device may be a transmission point, a base station or an LMF. If the network device is an LMF, the network device may determine the service cell of the terminal, thereby making corresponding indications in the positioning reference signal configuration information. For example, the network device may interact with the terminal device to determine the relevant information of the service cell of the terminal device, and when the positioning reference signal corresponding to the positioning reference signal configuration information comes from the service cell of the terminal device, a corresponding indication is made in the positioning reference signal configuration information. For another example, the network device may interact with the cell to determine the information of the terminal device that uses the cell as the service cell (including the information of the terminal device), and when the positioning reference signal configuration information corresponding to the cell (that is, the positioning reference signal configuration information corresponding to the positioning reference signal to be sent by the cell) is sent to the terminal device, a corresponding indication is made in the positioning reference signal configuration information.

[0154] Optionally, the positioning reference signal configuration information includes first indication information, and the first indication information is used to indicate that the positioning reference signal corresponding to the positioning reference signal configuration information comes from a serving cell, or to indicate that the positioning reference signal corresponding to the positioning reference signal configuration comes from a non-serving cell.

[0155] In this method, the terminal device can directly determine whether the positioning reference signal corresponding to the positioning reference signal configuration information comes from a serving cell or a non-serving cell based on the indication of the positioning reference signal configuration information, and then accurately handle the collision between the positioning reference signal and other signals, and accurately configure the power and beam of the uplink positioning signal, thereby improving positioning accuracy and positioning performance.

[0156] According to the description of the relevant technology, the embodiment of the present application can also provide a technical solution to distinguish whether the PRS and other signals come from the same serving cell or the same non-serving cell, so as to further improve the positioning accuracy and positioning performance.

[0157] Figure 5 A possible communication process provided in an embodiment of the present application includes the following steps:

[0158] S501: The terminal device receives positioning reference signal configuration information.

[0159] The implementation process of S501 can refer to the above S401 and will not be described in detail here.

[0160] S502: The terminal device receives first signal configuration information.

[0161] The order of S501 and S502 is not limited.

[0162] Optionally, the terminal device receives first signal configuration information from the transmission point.

[0163] The first signal configuration information includes but is not limited to one or more of the following information: a physical cell identifier (PCI), a cell global identifier (CGI), a frequency band where a positioning reference signal is located (such as ARFCN), and the like.

[0164] The first signal corresponding to the first signal configuration information may be a synchronization signal block, or may be a channel state information reference signal (CSI-RS), or may be a downlink signal such as a demodulation reference signal (DMRS). For example, the synchronization signal block may be an SSB.

[0165] S503: When the positioning reference signal configuration information includes a physical cell identifier and / or a cell global identifier, if the fourth condition is met, the terminal device determines that the positioning reference signal corresponding to the positioning reference signal configuration information and the first signal corresponding to the first signal configuration information come from the same serving cell.

[0166] Optionally, when the positioning reference signal configuration information includes a physical cell identifier and / or a cell global identifier, if the fifth condition is met, the terminal device can also determine that the positioning reference signal corresponding to the positioning reference signal configuration information and the first signal corresponding to the first signal configuration information come from the same non-service cell.

[0167] When the positioning reference signal originates from a serving cell and the first signal originates from a serving cell, the terminal device may determine that the positioning reference signal and the first signal originate from the same serving cell. A fourth condition may include: the physical cell identifier corresponding to the positioning reference signal is the same as the physical cell identifier corresponding to the first signal. Considering carrier aggregation, there may be multiple serving cells. To further improve the accuracy of determining whether the positioning reference signal and the first signal originate from the same serving cell, the fourth condition may include: the positioning reference signal originates from a serving cell, and the frequency band in which the positioning reference signal resides is the same as the frequency band in which the first signal resides. Alternatively, the fourth condition may include: the positioning reference signal originates from a serving cell, and the physical cell identifier corresponding to the positioning reference signal is the same as the physical cell identifier corresponding to the first signal, and the frequency band in which the positioning reference signal resides is the same as the frequency band in which the first signal resides. In this case, the terminal device determines that the positioning reference signal and the first signal originate from the same serving cell. If the terminal device receives multiple positioning reference signals, positioning reference signals other than the positioning reference signal (i.e., positioning reference signals originating from the same serving cell as the first signal) may still coexist with the first signal and may still be received by the terminal device, further accurately handling collisions between positioning reference signals and other signals. Optionally, the fourth condition may also include: the first signal comes from the serving cell, that is, the terminal device may also determine that the first signal comes from the serving cell based on one or more information included in the first signal configuration information.

[0168] Optionally, when the frequency band of the positioning reference signal is the same as the frequency band of the first signal, the positioning reference signal and the first signal may be considered to originate from the same cell. If the positioning reference signal originates from a serving cell, then the first signal originates from the same serving cell as the positioning reference signal, i.e., the positioning reference signal and the first signal originate from the same serving cell. If the positioning reference signal originates from a non-serving cell, then the first signal originates from the same non-serving cell as the positioning reference signal, i.e., the positioning reference signal and the first signal originate from the same non-serving cell.

[0169] The fifth condition may include: the positioning reference signal comes from a non-serving cell, and the physical cell identifier corresponding to the positioning reference signal is the same as the physical cell identifier corresponding to the first signal.

[0170] Alternatively, the fifth condition may include: the positioning reference signal comes from a non-serving cell, the physical cell identifier corresponding to the positioning reference signal is the same as the physical cell identifier corresponding to the first signal, and the frequency band of the positioning reference signal is the same as the frequency band of the first signal.

[0171] Optionally, the fifth condition may also include: the first signal comes from a non-service cell, that is, the terminal device may also determine that the first signal comes from a non-service cell based on one or more information included in the first signal configuration information.

[0172] For example, taking the above positioning reference signal configuration information including one or more of nr-PhysCellID-r16, nr-CellGlobalID-r16, and nr-ARFCN-r16 as an example, whether the positioning reference signal and the first signal come from the same cell is explained.

[0173] When the positioning reference signal configuration information includes nr-PhysCellID-r16 and the first signal configuration information includes a physical cell identifier, if the nr-PhysCellID-r16 is the same as the physical cell identifier (PCI) of the first signal, and the frequency band of the positioning reference signal is the same as the frequency band of the first signal, the terminal device can determine that the positioning reference signal and the first signal are from the same cell. If the positioning reference signal is from the serving cell at the same time, the fourth condition is met, and the positioning reference signal and the first signal are from the same serving cell. If the positioning reference signal is from a non-serving cell at the same time, the fifth condition is met, and the positioning reference signal and the first signal are from the same non-serving cell.

[0174] When the positioning reference signal configuration information includes nr-CellGlobalID-r16 and the first signal configuration information includes a cell global identifier, if the nr-CellGlobalID-r16 is the same as the cell global identifier (CGI) of the first signal, the terminal device can determine that the positioning reference signal and the first signal are from the same cell. If the positioning reference signal is from the serving cell at the same time, the fourth condition is met, and the positioning reference signal and the first signal are from the same serving cell. If the positioning reference signal is from a non-serving cell at the same time, the fifth condition is met, and the positioning reference signal and the first signal are from the same non-serving cell.

[0175] When the positioning reference signal configuration information includes nr-PhysCellID-r16 and nr-CellGlobalID-r16, and the first signal configuration information includes a physical cell identifier and a cell global identifier, if the nr-PhysCellID-r16 is the same as the physical cell identifier of the first signal, and the nr-CellGlobalID-r16 is the same as the cell global identifier of the first signal, the terminal device can determine that the positioning reference signal and the first signal are from the same cell. If the positioning reference signal is from the serving cell at the same time, the fourth condition is met, and the positioning reference signal and the first signal are from the same serving cell. If the positioning reference signal is from a non-serving cell at the same time, the fifth condition is met, and the positioning reference signal and the first signal are from the same non-serving cell.

[0176] When the positioning reference signal configuration information includes nr-PhysCellID-r16 and nr-ARFCN-r16, and the first signal configuration information includes a physical cell identifier and ARFCN, if the nr-PhysCellID-r16 is the same as the physical cell identifier of the first signal, and the nr-ARFCN-r16 is the same as the ARFCN of the first signal, the terminal device can determine that the positioning reference signal and the first signal are from the same cell. If the positioning reference signal is from the serving cell at the same time, the fourth condition is met, and the positioning reference signal and the first signal are from the same serving cell. If the positioning reference signal is from a non-serving cell at the same time, the fifth condition is met, and the positioning reference signal and the first signal are from the same non-serving cell.

[0177] When the positioning reference signal configuration information includes nr-CellGlobalID-r16 and nr-ARFCN-r16, and the first signal configuration information includes a cell global identifier and an ARFCN, if the nr-CellGlobalID-r16 is the same as the cell global identifier of the first signal, and the nr-ARFCN-r16 is the same as the ARFCN of the first signal, the terminal device can determine that the positioning reference signal and the first signal are from the same cell. If the positioning reference signal is from the serving cell at the same time, the fourth condition is met, and the positioning reference signal and the first signal are from the same serving cell. If the positioning reference signal is from a non-serving cell at the same time, the fifth condition is met, and the positioning reference signal and the first signal are from the same non-serving cell.

[0178] When the positioning reference signal configuration information includes nr-PhysCellID-r16, nr-CellGlobalID-r16 and nr-ARFCN-r16, and the first signal configuration information includes a physical cell identifier, a cell global identifier and an ARFCN, if the nr-PhysCellID-r16 is the same as the physical cell identifier of the first signal, the nr-CellGlobalID-r16 is the same as the cell global identifier of the first signal, and the nr-ARFCN-r16 is the same as the ARFCN of the first signal, the terminal device can determine that the positioning reference signal and the first signal are from the same cell. If the positioning reference signal is from the serving cell at the same time, the fourth condition is met, and the positioning reference signal and the first signal are from the same serving cell. If the positioning reference signal is from a non-serving cell at the same time, the fifth condition is met, and the positioning reference signal and the first signal are from the same non-serving cell.

[0179] In addition to the above situation, the positioning reference signal and the first signal come from different cells, that is, from different serving cells or different non-serving cells.

[0180] Optionally, if the positioning reference signal and the first signal come from the same serving cell or the same non-serving cell, the terminal device may not receive the positioning reference signal, and the unreceived positioning reference signal does not participate in the positioning measurement.

[0181] Through the communication method provided in the embodiment of the present application, the terminal device can determine that the positioning reference signal and the first signal come from the same service cell or the same non-service cell, and further accurately process the collision between the positioning reference signal and other signals, thereby further improving the positioning accuracy and positioning performance.

[0182] In the above Figure 4 and Figure 5 Based on the communication process shown, Figure 6 The positioning technology is described, including the following steps:

[0183] S601: LMF and terminal equipment interactive positioning capabilities.

[0184] The positioning capability includes the processing capability of PRS, which refers to the number of PRSs processed by the terminal device within a period of time.

[0185] S602: The LMF or the transmission point sends the PRS configuration information of each transmission point to the terminal device.

[0186] Each transmission point is a transmission point participating in positioning.

[0187] S603: The transmission point participating in positioning sends a PRS to the terminal device.

[0188] S604: After receiving the PRS configuration information, the terminal device determines whether the PRS corresponding to the PRS configuration information comes from a serving cell or a non-serving cell, and determines whether the SSB and the PRS come from the same serving cell or the same non-serving cell.

[0189] The implementation process of S604 can be found in the above Figure 4 and Figure 5 .

[0190] If the SSB and PRS come from the same serving cell or the same non-serving cell, the terminal device does not receive the PRS, that is, the terminal device does not receive the PRS on the resource of the PRS, or the terminal device skips the PRS resource.

[0191] S605: The terminal device measures the received PRS.

[0192] S606: The terminal device reports the measurement result to the LMF.

[0193] S607: The LMF estimates the location of the terminal device based on the measurement reception reported by the terminal device.

[0194] Optionally, the terminal device measures the received PRS to estimate its own location.

[0195] It can be seen from the above embodiments that the terminal device can accurately determine whether the positioning reference signal comes from a serving cell or a non-serving cell, and whether the positioning reference signal and the first signal come from the same serving cell or the same non-serving cell.

[0196] In this way, the positioning reference signal from the same service cell or the same non-service cell as the first signal is not detected, thereby avoiding collision between the positioning reference signal from the same service cell or the same non-service cell and the first signal, and can accurately receive other positioning reference signals from different service cells and / or different non-service cells than the first signal, thereby avoiding both erroneous detection of positioning reference signals and missed detection of positioning reference signals, thereby ensuring the positioning accuracy and positioning performance of the downlink positioning technology.

[0197] Furthermore, the terminal device can accurately configure positioning reference signal resources for the uplink positioning reference signal to implement open-loop power control and beamforming, accurately sending the uplink positioning reference signal, thereby ensuring and improving the positioning accuracy and positioning performance of the uplink positioning technology. The improvement in the positioning accuracy and positioning performance of the uplink positioning technology is particularly significant for the FR2 frequency band.

[0198] 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.

[0199] Based on the same technical concept as the above communication method, the embodiment of the present application also provides a communication system. Figure 7 As shown, the communication system 700 includes a network device 701 and a terminal device 702. The network device 701 and the terminal device 702 can implement the method described in the above method embodiment.

[0200] For example, the network device 701 is configured to send positioning reference signal configuration information;

[0201] The terminal device 702 is used to receive the positioning reference signal configuration information; when the positioning reference signal configuration information includes a physical cell identifier and / or a cell global identifier, if the first condition is met, determine that the positioning reference signal corresponding to the positioning reference signal configuration information comes from a serving cell.

[0202] In one implementation, when the positioning reference signal configuration information includes a physical cell identifier and / or a cell global identifier, if the second condition is met, the positioning reference signal corresponding to the positioning reference signal configuration information comes from a non-serving cell.

[0203] In one implementation, the terminal device 702 is further used to determine that the positioning reference signal corresponding to the positioning reference signal configuration information is not associated with any cell when a third condition is met, and the third condition includes that the positioning reference signal configuration information does not include a physical cell identifier and a cell global identifier.

[0204] In one implementation, the first condition includes: the physical cell identifier is the same as the physical cell identifier of the serving cell, and the frequency band of the positioning reference signal is the same as the frequency band corresponding to the serving cell; and / or the physical cell identifier is the same as the physical cell identifier of the serving cell; and / or the cell global identifier is the same as the cell global identifier of the serving cell.

[0205] In one implementation, the terminal device 702 is further used to, when the positioning reference signal configuration information also includes an absolute radio frequency channel number ARFCN, if the ARFCN included in the positioning reference signal configuration information is the same as the ARFCN of the serving cell, determine that the frequency band in which the positioning reference signal is located is the same as the frequency band corresponding to the serving cell.

[0206] In one implementation, the second condition is: the first condition is not met, and the third condition is not met.

[0207] In one implementation, the network device 701 is further configured to send first signal configuration information, where the first signal configuration information includes a physical cell identifier;

[0208] The terminal device 702 is also used to receive the first signal configuration information; and according to the physical cell identifier included in the first signal configuration information, when the fourth condition is met, determine that the positioning reference signal corresponding to the positioning reference signal configuration information and the first signal corresponding to the first signal configuration information are from the same service cell; when the fifth condition is met, determine that the positioning reference signal corresponding to the positioning reference signal configuration information and the first signal corresponding to the first signal configuration information are from the same non-service cell.

[0209] In one implementation, the first signal is a synchronization signal block.

[0210] In one implementation, the fourth condition includes: the positioning reference signal comes from a serving cell, and the frequency band of the positioning reference signal is the same as the frequency band of the first signal. Optionally, the fourth condition also includes: the first signal comes from a serving cell.

[0211] In one implementation manner, in a possible implementation, the fourth condition includes: the positioning reference signal comes from a serving cell, and a physical cell identifier corresponding to the positioning reference signal is the same as a physical cell identifier corresponding to the first signal.

[0212] In one implementation, the fourth condition includes: the positioning reference signal comes from a serving cell, and the physical cell identifier corresponding to the positioning reference signal is the same as the physical cell identifier corresponding to the first signal, and the frequency band of the positioning reference signal is the same as the frequency band of the first signal.

[0213] In one implementation, the fifth condition includes: the positioning reference signal is from a non-serving cell, and the physical cell identifier corresponding to the positioning reference signal is the same as the physical cell identifier corresponding to the first signal. Optionally, the fifth condition also includes: the first signal is from a non-serving cell.

[0214] In one implementation, the fifth condition includes: the positioning reference signal is from a non-serving cell, the physical cell identifier corresponding to the positioning reference signal is the same as the physical cell identifier corresponding to the first signal, and the frequency band of the positioning reference signal is the same as the frequency band of the first signal. Optionally, the fifth condition also includes: the first signal is from a non-serving cell.

[0215] For another example, the network device 701 is configured to send positioning reference signal configuration information, where the positioning reference signal configuration information is used to indicate that a positioning reference signal corresponding to the positioning reference signal configuration information is from a serving cell, or is used to indicate that a positioning reference signal corresponding to the positioning reference signal configuration is from a non-serving cell;

[0216] The terminal device 702 is used to receive the positioning reference signal configuration information.

[0217] In one implementation, the positioning reference signal configuration information includes first indication information, and the first indication information is used to indicate that the positioning reference signal corresponding to the positioning reference signal configuration information is from a serving cell, or to indicate that the positioning reference signal corresponding to the positioning reference signal configuration is from a non-serving cell.

[0218] Optional, such as Figure 8FIG2 is a schematic diagram of the structure of a network device 810 and a terminal device 820 provided in an embodiment of the present application. The terminal device 820 includes a first terminal device and / or at least one second terminal device. Figure 8 The schematic diagram of the structure between the first terminal device and at least one second terminal device is not shown in FIG. The network device 810 may be an access network device, such as a base station or a transmission point.

[0219] The terminal device 810 includes at least one processor ( Figure 8 The exemplary embodiment includes a processor 8101 as an example) and at least one transceiver ( Figure 8 Optionally, the terminal device 810 may further include at least one memory ( Figure 8 The example includes a memory 8102 as an example), at least one output device ( Figure 8 The example includes an output device 8104 as an example) and at least one input device ( Figure 8 The example is explained by taking an input device 8105 as an example).

[0220] The processor 8101, the memory 8102, and the transceiver 8103 are connected via a communication line. The communication line may include a path for transmitting information between the above components.

[0221] The processor 8101 can be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits used to control the execution of the program of the present application.

[0222] The memory 8102 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type of dynamic storage device that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, an optical disc storage (including a compact disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto. The memory may exist independently and be connected to the processor via a communication line. The memory may also be integrated with the processor.

[0223] The memory 8102 is used to store computer-executable instructions for executing the solution of the present application, and the execution is controlled by the processor 8101. The processor 8101 is used to execute the computer-executable instructions stored in the memory 8102, thereby implementing the communication method provided in the following embodiments of the present application.

[0224] Optionally, the computer-executable instructions in the embodiments of the present application may also be referred to as application code or computer program code, which is not specifically limited in the embodiments of the present application.

[0225] Output device 8104 communicates with processor 8101 and can display information in various ways. For example, output device 8104 can be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector. Input device 8105 communicates with processor 8101 and can receive user input in various ways. For example, input device 306 can be a mouse, keyboard, touch screen device, or sensor device.

[0226] The transceiver 8103 can be any transceiver-like device for communicating with other devices or communication networks, such as Ethernet, radio access networks (RAN), or wireless local area networks (WLAN). The transceiver 8103 includes a transmitter (Tx) and a receiver (Rx).

[0227] The memory 8102 may exist independently and be connected to the processor 8101 via a communication line. The memory 8102 may also be integrated with the processor 8101.

[0228] The memory 8102 is used to store computer-executable instructions for executing the solution of the present application, and the execution is controlled by the processor 8101. Specifically, the processor 8101 is used to execute the computer-executable instructions stored in the memory 8102, thereby implementing the communication method described in the embodiment of the present application.

[0229] Alternatively, optionally, in an embodiment of the present application, the processor 8101 may also perform processing-related functions in the signal generation method provided in the following embodiments of the present application, and the transceiver 8103 is responsible for communicating with other devices or communication networks. The embodiments of the present application do not specifically limit this.

[0230] The network device 820 includes at least one processor ( Figure 8 The exemplary embodiment includes a processor 8201 as an example for description), at least one transceiver ( Figure 8 The exemplary embodiment includes a transceiver 8203 as an example) and at least one network interface ( Figure 8 The network device 820 is described as including a network interface 8204 as an example). Optionally, the network device 820 may further include at least one memory ( Figure 8 The exemplary embodiment includes a memory 8202 as an example for explanation). Among them, the processor 8201, the memory 8202, the transceiver 8203 and the network interface 8204 are connected through a communication line. The network interface 8204 is used to connect to the core network device through a link (for example, an S1 interface), or to connect to the network interface of other network devices through a wired or wireless link (for example, an X2 interface). Figure 8 In addition, the description of the processor 8201, the memory 8202, and the transceiver 8203 can refer to the description of the processor 8101, the memory 8102, and the transceiver 8103 in the terminal device 810, and will not be repeated here.

[0231] It is understandable that Figure 8The illustrated structures do not constitute specific limitations on the terminal device 810 and the network device 820. For example, in other embodiments of the present application, the terminal device 810 or the network device 820 may include more or fewer components than shown, or may combine or separate certain components, or may have different component arrangements. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

[0232] Based on the same technical concept as the above communication method, the embodiment of the present application also provides a communication device. Figure 9 As shown, the communication device 900 includes a processing unit 901 and a transceiver unit 902. The communication device 900 can be used to implement the method described in the above method embodiment.

[0233] In one embodiment, the apparatus 900 is applied to a terminal device.

[0234] Specifically, the transceiver unit 902 is configured to receive positioning reference signal configuration information;

[0235] The processing unit 901 is configured to, when the positioning reference signal configuration information includes a physical cell identifier and / or a cell global identifier, determine that a positioning reference signal corresponding to the positioning reference signal configuration information comes from a serving cell if a first condition is met.

[0236] Whether the first condition is satisfied can be determined by the processing unit 901, that is, the processing unit 901 can determine whether the first condition is satisfied and / or determine whether the first condition is not satisfied. Accordingly, other conditions involved in the embodiments of the present application, such as the second condition, the third condition, the fourth condition, the fifth condition, etc., can also be determined by the processing unit 901.

[0237] In one implementation, the processing unit 901 is further configured to, when the positioning reference signal configuration information includes a physical cell identifier and / or a cell global identifier, if the second condition is met, the positioning reference signal corresponding to the positioning reference signal configuration information comes from a non-serving cell.

[0238] In one implementation, the processing unit 901 is further configured to determine, when a third condition is met, that the positioning reference signal corresponding to the positioning reference signal configuration information is not associated with any cell, wherein the third condition includes that the positioning reference signal configuration information does not include a physical cell identifier and a cell global identifier.

[0239] In one implementation, the first condition includes: the physical cell identifier is the same as the physical cell identifier of the serving cell, and the frequency band of the positioning reference signal is the same as the frequency band corresponding to the serving cell; and / or the physical cell identifier is the same as the physical cell identifier of the serving cell; and / or the cell global identifier is the same as the cell global identifier of the serving cell.

[0240] For example, when determining whether the first condition is met, the processing unit 901 may determine that the physical cell identifier in the positioning reference signal configuration information is the same as the physical cell identifier of the serving cell, and the frequency band of the positioning reference signal corresponding to the positioning reference signal configuration information is the same as the frequency band corresponding to the serving cell, thereby determining that the first condition is met.

[0241] In one implementation, the processing unit 901 is further used to, when the positioning reference signal configuration information also includes an absolute radio frequency channel number ARFCN, if the ARFCN included in the positioning reference signal configuration information is the same as the ARFCN of the serving cell, determine that the frequency band in which the positioning reference signal is located is the same as the frequency band corresponding to the serving cell.

[0242] In one implementation, the second condition is: the first condition is not met, and the third condition is not met.

[0243] In one implementation, the transceiver unit 902 is further configured to receive first signal configuration information, where the first signal configuration information includes a physical cell identifier;

[0244] The processing unit 901 is further configured to determine, based on the physical cell identifier included in the first signal configuration information, that the positioning reference signal corresponding to the positioning reference signal configuration information and the first signal corresponding to the first signal configuration information are from the same serving cell when a fourth condition is met, and to determine, when a fifth condition is met, that the positioning reference signal corresponding to the positioning reference signal configuration information and the first signal corresponding to the first signal configuration information are from the same non-serving cell.

[0245] In one implementation, the first signal is a synchronization signal block.

[0246] In one implementation, the fourth condition includes: the positioning reference signal comes from a serving cell, and the frequency band of the positioning reference signal is the same as the frequency band of the first signal. Optionally, the fourth condition also includes: the first signal comes from a serving cell.

[0247] In one implementation manner, in a possible implementation, the fourth condition includes: the positioning reference signal comes from a serving cell, and a physical cell identifier corresponding to the positioning reference signal is the same as a physical cell identifier corresponding to the first signal.

[0248] In one implementation, the fourth condition includes: the positioning reference signal comes from a serving cell, and the physical cell identifier corresponding to the positioning reference signal is the same as the physical cell identifier corresponding to the first signal, and the frequency band of the positioning reference signal is the same as the frequency band of the first signal.

[0249] In one implementation, the fifth condition includes: the positioning reference signal is from a non-serving cell, and the physical cell identifier corresponding to the positioning reference signal is the same as the physical cell identifier corresponding to the first signal. Optionally, the fifth condition also includes: the first signal is from a non-serving cell.

[0250] In one implementation, the fifth condition includes: the positioning reference signal is from a non-serving cell, the physical cell identifier corresponding to the positioning reference signal is the same as the physical cell identifier corresponding to the first signal, and the frequency band of the positioning reference signal is the same as the frequency band of the first signal. Optionally, the fifth condition also includes: the first signal is from a non-serving cell.

[0251] It should be noted that the division of modules in the embodiments of the present application is illustrative and is merely a logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0252] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0253] like Figure 10 As shown, the embodiment of the present application further provides a structural diagram of a communication device 1000. The device 1000 can be used to implement the method described in the above method embodiment, and the description in the above method embodiment can be referred to.

[0254] The device 1000 includes one or more processors 1001. The processor 1001 can be a general-purpose processor or a dedicated processor. For example, it can be a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control a communication device (such as a base station, terminal, or chip), execute software programs, and process data of the software programs. The communication device may include a transceiver unit to implement signal input (reception) and output (transmission). For example, the transceiver unit can be a transceiver, a radio frequency chip, etc.

[0255] The apparatus 1000 includes one or more processors 1001 , and the one or more processors 1001 can implement the methods in the above-mentioned embodiments.

[0256] Optionally, in addition to implementing the method of the embodiment shown above, the processor 1001 may also implement other functions.

[0257] Optionally, in one design, the processor 1001 may execute instructions to cause the apparatus 1000 to perform the method described in the above method embodiment. The instructions may be stored in whole or in part within the processor, such as instruction 1003, or in whole or in part in the memory 1002 coupled to the processor, such as instruction 1004. Instructions 1003 and 1004 may also be used together to cause the apparatus 1000 to perform the method described in the above method embodiment.

[0258] In yet another possible design, the communication device 1000 may also include a circuit, which may implement the functions of the aforementioned method embodiment.

[0259] In another possible design, the device 1000 may include one or more memories 1002, on which instructions 1004 are stored. The instructions can be executed on the processor so that the device 1000 performs the method described in the above method embodiment. Optionally, data can also be stored in the memory. The optional processor can also store instructions and / or data. For example, the one or more memories 1002 can store the corresponding relationships described in the above embodiments, or the relevant parameters or tables involved in the above embodiments. The processor and memory can be provided separately or integrated together.

[0260] In another possible design, the apparatus 1000 may further include a transceiver 1005 and an antenna 1006. The processor 1001 may be referred to as a processing unit, which controls the apparatus (terminal or base station). The transceiver 1005 may be referred to as a transceiver, a transceiver circuit, or a transceiver unit, etc., which is configured to implement the transceiver function of the apparatus via the antenna 1006.

[0261] It should be noted that the processor in the embodiments of the present application can be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above-mentioned method embodiment can be completed by hardware integrated logic circuits in the processor or by software instructions. The above-mentioned processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. The various methods, steps, and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the method disclosed in the embodiments of the present application can be directly implemented and executed by a hardware decoding processor, or by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium well-known in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is located in the memory, and the processor reads the information in the memory and, in conjunction with its hardware, completes the steps of the above-mentioned method.

[0262] It is understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0263] An embodiment of the present application further provides a computer-readable medium on which a computer program is stored. When the computer program is executed by a computer, the communication method described in any of the above method embodiments is implemented.

[0264] An embodiment of the present application also provides a computer program product, which, when executed by a computer, implements the communication method described in any of the above method embodiments.

[0265] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When software is used for implementation, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website, computer, server or data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) mode to another website, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrations. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a high-density digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0266] An embodiment of the present application further provides a processing device, including a processor and an interface; the processor is used to execute the communication method described in any of the above method embodiments.

[0267] It should be understood that the above-mentioned processing device can be a chip, and the processor can be implemented by hardware or by software. When implemented by hardware, the processor can be a logic circuit, an integrated circuit, etc.; when implemented by software, the processor can be a general-purpose processor, which is implemented by reading the software code stored in the memory. The memory can be integrated into the processor or can be located outside the processor and exist independently.

[0268] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0269] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0270] 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 device embodiments described above are merely schematic. For example, the division of units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, or can be electrical, mechanical or other forms of connection.

[0271] 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 the units may be selected according to actual needs to achieve the purpose of the embodiments of the present application.

[0272] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0273] Through the description of the above embodiments, it will be clear to those skilled in the art that the present application can be implemented in hardware, firmware, or a combination thereof. When implemented using software, the above functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein communication media include any medium that facilitates the transmission of computer programs from one place to another. The storage medium can be any available medium that can be accessed by a computer. By way of example and not limitation, computer-readable media can include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer. In addition, any connection can appropriately become a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwaves, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwaves are included in the fixing of the medium. As used herein, the terms "disk" and "disc" include compact discs (CDs), laser discs, optical discs, digital versatile discs (DVDs), floppy disks, and Blu-ray discs. Disks typically reproduce data magnetically, while discs reproduce data optically using lasers. Combinations of the above should also be included within the scope of protection for computer-readable media.

[0274] In short, the above description is only a preferred embodiment of the technical solution of this application and is not intended to limit the scope of protection of this application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application shall be included in the scope of protection of this application.

Claims

1. A communication method, characterized in that: The method applied to a terminal device or a chip of the terminal device includes: Receive positioning reference signal configuration information from the positioning management function LMF or transmission point; In a case where the positioning reference signal configuration information includes a physical cell identifier and / or a cell global identifier, if a first condition is met, determining that the positioning reference signal corresponding to the positioning reference signal configuration information is from a serving cell; The first condition includes: one or more parameters of the physical cell identifier, cell global identifier and absolute radio frequency channel number contained in the positioning reference signal configuration information are the same as the corresponding one or more parameters of the physical cell identifier, cell global identifier and absolute radio frequency channel number of the serving cell.

2. The method according to claim 1, wherein One or more parameters of the physical cell identifier, cell global identifier, and absolute radio frequency channel number included in the positioning reference signal configuration information are the same as the corresponding one or more parameters of the physical cell identifier, cell global identifier, and absolute radio frequency channel number of the serving cell, including at least one of the following conditions: When the positioning reference signal configuration information includes the physical cell identifier, the physical cell identifier is the same as the physical cell identifier of the serving cell; When the positioning reference signal configuration information includes the cell global identifier, the cell global identifier is the same as the cell global identifier of the serving cell; When the positioning reference signal configuration information includes the physical cell identifier and the cell global identifier, the physical cell identifier is the same as the physical cell identifier of the serving cell, and the cell global identifier is the same as the cell global identifier of the serving cell; When the positioning reference signal configuration information includes the physical cell identifier and the absolute radio frequency channel number, the physical cell identifier is the same as the physical cell identifier of the serving cell, and the absolute radio frequency channel number is the same as the absolute radio frequency channel number of the serving cell; When the positioning reference signal configuration information includes the cell global identifier and the absolute radio frequency channel number, the cell global identifier is the same as the cell global identifier of the serving cell, and the absolute radio frequency channel number is the same as the absolute radio frequency channel number of the serving cell; or When the positioning reference signal configuration information includes the physical cell identifier, the cell global identifier and the absolute radio frequency channel number, the physical cell identifier is the same as the physical cell identifier of the serving cell, the cell global identifier is the same as the cell global identifier of the serving cell, and the absolute radio frequency channel number is the same as the absolute radio frequency channel number of the serving cell.

3. The method according to claim 1, wherein The method further comprises: In a case where the positioning reference signal configuration information includes the physical cell identifier and / or the cell global identifier, if the first condition is not met and the third condition is not met, it is determined that the positioning reference signal corresponding to the positioning reference signal configuration information is from a non-serving cell, and the third condition includes: the positioning reference signal configuration information does not include the physical cell identifier and the cell global identifier.

4. The method according to claim 3, wherein The method further comprises: receiving first signal configuration information, where the first signal configuration information includes a physical cell identifier; If the positioning reference signal comes from a non-serving cell, the physical cell identifier included in the positioning reference signal configuration information is the same as the physical cell identifier included in the first signal configuration information, and the frequency band of the positioning reference signal is the same as the frequency band of the first signal corresponding to the first signal configuration information, it is determined that the positioning reference signal and the first signal come from the same non-serving cell.

5. The method according to claim 4, wherein The first signal is a synchronization signal block.

6. The method according to claim 1, wherein The method further comprises: receiving first signal configuration information, where the first signal configuration information includes a physical cell identifier; If the positioning reference signal corresponding to the positioning reference signal configuration information comes from a serving cell, and the physical cell identifier corresponding to the positioning reference signal is the same as the physical cell identifier included in the first signal configuration information, it is determined that the positioning reference signal and the first signal corresponding to the first signal configuration information come from the same serving cell.

7. The method according to claim 1, wherein The method further comprises: receiving first signal configuration information, where the first signal configuration information includes a physical cell identifier; If the positioning reference signal corresponding to the positioning reference signal configuration information comes from a serving cell, the physical cell identifier corresponding to the positioning reference signal is the same as the physical cell identifier included in the first signal configuration information, and the frequency band of the positioning reference signal is the same as the frequency band of the first signal corresponding to the first signal configuration information, it is determined that the positioning reference signal and the first signal come from the same serving cell.

8. A communication device, characterized in that: including a processing unit and a transceiver unit; The transceiver unit is configured to receive positioning reference signal configuration information from a positioning management function LMF or a transmission point; the processing unit being configured to, when the positioning reference signal configuration information includes a physical cell identifier and / or a cell global identifier, determine that a positioning reference signal corresponding to the positioning reference signal configuration information is from a serving cell if a first condition is met; The first condition includes: one or more parameters of the physical cell identifier, cell global identifier and absolute radio frequency channel number contained in the positioning reference signal configuration information are the same as the corresponding one or more parameters of the physical cell identifier, cell global identifier and absolute radio frequency channel number of the serving cell.

9. The device according to claim 8, wherein One or more parameters of the physical cell identifier, cell global identifier, and absolute radio frequency channel number included in the positioning reference signal configuration information are the same as the corresponding one or more parameters of the physical cell identifier, cell global identifier, and absolute radio frequency channel number of the serving cell, including at least one of the following conditions: When the positioning reference signal configuration information includes the physical cell identifier, the physical cell identifier is the same as the physical cell identifier of the serving cell; When the positioning reference signal configuration information includes the cell global identifier, the cell global identifier is the same as the cell global identifier of the serving cell; When the positioning reference signal configuration information includes the physical cell identifier and the cell global identifier, the physical cell identifier is the same as the physical cell identifier of the serving cell, and the cell global identifier is the same as the cell global identifier of the serving cell; When the positioning reference signal configuration information includes the physical cell identifier and the absolute radio frequency channel number, the physical cell identifier is the same as the physical cell identifier of the serving cell, and the absolute radio frequency channel number is the same as the absolute radio frequency channel number of the serving cell; When the positioning reference signal configuration information includes the cell global identifier and the absolute radio frequency channel number, the cell global identifier is the same as the cell global identifier of the serving cell, and the absolute radio frequency channel number is the same as the absolute radio frequency channel number of the serving cell; When the positioning reference signal configuration information includes the physical cell identifier, the cell global identifier and the absolute radio frequency channel number, the physical cell identifier is the same as the physical cell identifier of the serving cell, the cell global identifier is the same as the cell global identifier of the serving cell, and the absolute radio frequency channel number is the same as the absolute radio frequency channel number of the serving cell.

10. The device according to claim 8, wherein The processing unit is further configured to, when the positioning reference signal configuration information includes the physical cell identifier and / or the cell global identifier, determine that the positioning reference signal corresponding to the positioning reference signal configuration information is from a non-serving cell if the first condition is not met and a third condition is not met, the third condition including: the positioning reference signal configuration information does not include the physical cell identifier and the cell global identifier.

11. The device according to claim 10, wherein The transceiver unit is further configured to receive first signal configuration information, where the first signal configuration information includes a physical cell identifier; The processing unit is further configured to, if the positioning reference signal comes from a non-serving cell, determine that the positioning reference signal and the first signal come from the same non-serving cell, a physical cell identifier included in the positioning reference signal configuration information is the same as a physical cell identifier included in the first signal configuration information, and a frequency band within which the positioning reference signal is located is the same as a frequency band within which a first signal corresponding to the first signal configuration information is located.

12. The device according to claim 11, wherein The first signal is a synchronization signal block.

13. The device according to claim 8, wherein The transceiver unit is further configured to receive first signal configuration information, where the first signal configuration information includes a physical cell identifier; The processing unit is further configured to determine that the positioning reference signal and the first signal corresponding to the first signal configuration information are from the same serving cell if the positioning reference signal corresponding to the positioning reference signal configuration information is from a serving cell and the physical cell identifier corresponding to the positioning reference signal is the same as the physical cell identifier included in the first signal configuration information.

14. The device according to claim 8, wherein The transceiver unit is further configured to receive first signal configuration information, where the first signal configuration information includes a physical cell identifier; The processing unit is further configured to, if the positioning reference signal corresponding to the positioning reference signal configuration information comes from a serving cell, the physical cell identifier corresponding to the positioning reference signal is the same as the physical cell identifier included in the first signal configuration information, and the frequency band within which the positioning reference signal is located is the same as the frequency band within which the first signal corresponding to the first signal configuration information is located, determine that the positioning reference signal and the first signal come from the same serving cell.

15. A communication device, characterized in that: comprising a processor and a memory, wherein the processor is coupled to the memory; The memory stores a computer program; A processor, configured to execute the computer program stored in the memory, so that the apparatus performs the method according to any one of claims 1 to 7.

16. A computer-readable storage medium, characterized in that The method comprises a program or an instruction, and when the program or the instruction is run on a computer, the method according to any one of claims 1 to 7 is executed.

17. A chip, characterized in that: The chip includes a processor and an interface. The chip is coupled to a memory and is configured to read and execute program instructions stored in the memory to perform the method according to any one of claims 1 to 7.

18. A computer program product, characterized in that The method comprises a computer program code, and when the computer program code is run on a computer, the method according to any one of claims 1 to 7 is executed.

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