Communication method and device, storage medium, sending UE, network equipment and receiving UE

Abstract

A communication method and apparatus, a storage medium, a transmitting UE, a network device, and a receiving UE. The method comprises: sending a configuration information acquisition request, the configuration information acquisition request being used to obtain first configuration information, the first configuration information being used to configure a first reference signal, the first reference signal being used for a sidelink positioning service; and receiving the first configuration information requested by the configuration information acquisition request. The present invention can configure a sidelink positioning reference signal without the involvement of a positioning server, effectively filling a gap in the prior art, reducing the complexity of positioning a sidelink user terminal, and effectively improving system efficiency.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a communication method and apparatus, a storage medium, a sending UE, a network device, and a receiving UE. Background Art

[0002] Positioning based on mobile communication systems has been discussed in the 3rd Generation Partnership Project (3GPP) since the beginning of the 3rd Generation (3G). A variety of solutions have been developed, including positioning technologies based on radio access networks (RAT-dependent positioning technologies) and positioning technologies independent of radio access networks (RAT-independent positioning technologies).

[0003] The Vehicle to Everything (V2X) service requirements protocol TS 22.186 specifies requirements for relative positioning. Specifically, the relative lateral positioning accuracy between two terminals supporting V2X applications is 0.1m, and the relative longitudinal positioning accuracy is less than 0.5m.

[0004] To support short-range positioning services and collision avoidance services under V2X, it is necessary to support direct link, side link, or sidelink (SL) positioning. To support sidelink positioning, it may be necessary to send SL positioning reference signals between SL terminals, such as SL positioning reference signals (PRS), sounding reference signals (SRS), new radio (NR) synchronization blocks (NR SS / PBCHBlock), or channel state information reference signals (CSI-RS). Among them, the sidelink is a new link type introduced to support direct communication between V2X devices. It was first introduced in the device-to-device (D2D) application scenario.

[0005] However, in the existing technology, there is a lack of determination of processes and details in terms of the configuration of the sidelink positioning reference signal, the transmission process of the positioning reference signal between SL terminals, the measurement of the positioning reference signal, and the calculation of the positioning results.

[0006] There is an urgent need for a communication method to determine the configuration of the sidelink positioning reference signal and other aspects to fill the gap in the existing technology, and to reduce the complexity of the positioning sidelink user terminal as much as possible, thereby improving the system efficiency. Summary of the Invention

[0007] The technical problem solved by the present invention is to provide a communication method and device, storage medium, sending UE, network equipment and receiving UE, which can determine the configuration of the side link positioning reference signal and other aspects, effectively filling the gaps in the existing technology, and can reduce the complexity of the positioning side link user terminal and improve system efficiency.

[0008] To solve the above technical problems, an embodiment of the present invention provides a communication method, including: sending a configuration information acquisition request, the configuration information acquisition request is used to obtain first configuration information, the first configuration information is used to configure a first reference signal, and the first reference signal is used for sidelink positioning service; receiving the first configuration information requested by the configuration information acquisition request.

[0009] Optionally, the configuration information acquisition request includes quality of service information for the sidelink positioning service.

[0010] Optionally, the service quality information includes one or more of the following information: positioning accuracy, response time, and positioning service quality level information.

[0011] Optionally, the configuration acquisition request includes second configuration information, where the second configuration information is used to recommend configuring the first reference signal.

[0012] Optionally, the second configuration information includes one or more of the following information: switching information of the first reference signal, beam switching information of the first reference signal, period of the first reference signal, bandwidth of the first reference signal, resource set of the first reference signal resource, and reference signal pattern configuration information of the first reference signal.

[0013] Optionally, sending the configuration information acquisition request includes: sending a first message, where the first message includes the configuration information acquisition request, the first message is a radio resource control message, or the first message is a message Msg3 in a random access process.

[0014] Optionally, the method also includes: sending the first configuration information; sending side link control information, where the side link control information is used to indicate a first resource, where the first resource is a resource that carries the first reference signal; and sending the first reference signal on the first resource.

[0015] Optionally, the side link control information includes resource location indication information; wherein, the resource location indication information is used to indicate the location of the first resource.

[0016] Optionally, the sidelink control information also includes one or more of the following information: reference signal type indication information, destination address information; wherein the destination address information is used to indicate the address of the receiving device of the first reference signal.

[0017] Optionally, the method further includes: receiving a signal measurement result, where the signal measurement result is obtained based on the first reference signal, and the signal measurement result is used to indicate relative position information between a sending device and a receiving device of the first reference signal.

[0018] Optionally, the method further includes: determining relative position information of the sending device and the receiving device based on the signal measurement result.

[0019] Optionally, the relative position information includes a first azimuth angle and a distance between the sending device and the receiving device, wherein the first azimuth angle is the azimuth angle of the sending device relative to the receiving device, or the azimuth angle of the receiving device relative to the sending device.

[0020] To solve the above technical problems, an embodiment of the present invention provides a communication method, including: receiving a configuration information acquisition request, the configuration information acquisition request is used to obtain first configuration information, the first configuration information is used to configure a first reference signal, and the first reference signal is used for sidelink positioning service; sending the first configuration information requested by the configuration information acquisition request.

[0021] Optionally, the configuration information acquisition request includes quality of service information for the sidelink positioning service.

[0022] Optionally, the service quality information includes one or more of the following information: positioning accuracy, response time, and positioning service quality level information.

[0023] Optionally, the configuration acquisition request includes second configuration information, where the second configuration information is used to recommend configuring the first reference signal.

[0024] Optionally, the second configuration information includes one or more of the following information: switching information of the first reference signal, beam switching information of the first reference signal, period of the first reference signal, bandwidth of the first reference signal, resource set of the first reference signal resource, and reference signal pattern configuration information of the first reference signal.

[0025] Optionally, the receiving of the configuration information acquisition request includes: receiving a first message, the first message including the configuration information acquisition request, the first message being a radio resource control message, or the first message being a message Msg3 in a random access process.

[0026] To solve the above technical problems, an embodiment of the present invention provides a communication method, including: receiving first configuration information, where the first configuration information is used to configure a first reference signal, and the first reference signal is used for a sidelink positioning service; according to the first configuration information, receiving sidelink control information sidelink control information, where the sidelink control information is used to indicate a first resource, and the first resource is a resource that carries the first reference signal; and receiving the first reference signal on the first resource.

[0027] Optionally, the side link control information includes resource location indication information; wherein, the resource location indication information is used to indicate the location of the first resource.

[0028] Optionally, the sidelink control information also includes one or more of the following information: reference signal type indication information, destination address information; wherein the destination address information is used to indicate the address of the receiving device of the first reference signal.

[0029] Optionally, the method further includes: determining a signal measurement result based on the first reference signal, where the signal measurement result is used to indicate relative position information of a sending device and a receiving device of the first reference signal.

[0030] Optionally, the method further includes: determining relative position information of the sending device and the receiving device based on the signal measurement result.

[0031] Optionally, the relative position information includes a first azimuth angle and a distance between the sending device and the receiving device; wherein, the first azimuth angle is the azimuth angle of the sending device relative to the receiving device, or the azimuth angle of the receiving device relative to the sending device.

[0032] An embodiment of the present invention also provides a communication device, which includes: a request sending module for sending a configuration information acquisition request, wherein the configuration information acquisition request is used to obtain first configuration information, wherein the first configuration information is used to configure a first reference signal, and the first reference signal is used for sidelink positioning service; an information receiving module for receiving the first configuration information requested by the configuration information acquisition request.

[0033] An embodiment of the present invention also provides a communication device, which includes: a request receiving module for receiving a configuration information acquisition request, wherein the configuration information acquisition request is used to obtain first configuration information, wherein the first configuration information is used to configure a first reference signal, and the first reference signal is used for sidelink positioning service; an information sending module for sending the first configuration information requested by the configuration information acquisition request.

[0034] An embodiment of the present invention also provides a communication device, which includes: a configuration information receiving module for receiving first configuration information, wherein the first configuration information is used to configure a first reference signal, and the first reference signal is used for sidelink positioning service; a control information receiving module for receiving sidelink control information according to the first configuration information, wherein the sidelink control information is used to indicate a first resource, and the first resource is a resource that carries the first reference signal; and a signal receiving module for receiving the first reference signal on the first resource.

[0035] An embodiment of the present invention further provides a computer-readable storage medium, wherein a computer program is stored in the computer-readable storage medium. When a computer runs the computer program, the above-mentioned communication method is executed.

[0036] An embodiment of the present invention further provides a communication device, characterized in that it includes a memory and a processor, wherein a computer program is stored in the memory, and when the processor runs the computer program, the communication device executes the above-mentioned communication method.

[0037] Compared with the prior art, the technical solution of the embodiment of the present invention has the following beneficial effects:

[0038] In an embodiment of the present invention, by setting the steps of sending a configuration information acquisition request and receiving the first configuration information, and the configuration information acquisition request is related to the sidelink positioning service, the configuration of the sidelink positioning reference signal and other aspects can be determined, effectively filling the gaps in the existing technology, and can reduce the complexity of the positioning side link user terminal and improve system efficiency.

[0039] Furthermore, in an embodiment of the present invention, by setting the configuration acquisition request to include second configuration information, the second configuration information is used to recommend the configuration of the first reference signal, so that the network device can configure the first reference signal based on the configuration recommended by the sending UE, so that the reference signal can be configured according to the needs of the UE, so that the configuration of the reference signal can better meet the positioning service needs.

[0040] Furthermore, the sending of the configuration information acquisition request includes: sending a first message to the network device, so that the network device can perform actual configuration, and then obtaining the first configuration information from the network device.

[0041] Furthermore, by setting up the sending of the first configuration information, the receiving UE can perform positioning reference signal measurement based on the first configuration information, and then send side link control information to enable the receiving UE to determine the first resource carrying the first reference signal, and then send the first reference signal on the first resource, so that the receiving UE can accurately receive the first reference signal.

[0042] Furthermore, by determining the relative position information of the sending device and the receiving device based on the signal measurement result, the relative position of the sending device or the receiving device of the first reference signal relative to the other party can be accurately determined, thereby realizing the positioning function more accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 This is a diagram of a communication system architecture according to an embodiment of the present invention;

[0044] Figure 2 is a flow chart of a first communication method according to an embodiment of the present invention;

[0045] Figure 3 is a data flow diagram of the second communication method in an embodiment of the present invention;

[0046] Figure 4 is a data flow diagram of the third communication method in an embodiment of the present invention;

[0047] Figure 5 is a data flow diagram of the fourth communication method in an embodiment of the present invention;

[0048] Figure 6 is a data flow diagram of the fifth communication method in an embodiment of the present invention;

[0049] Figure 7 is a schematic diagram of an azimuth angle in an embodiment of the present invention;

[0050] Figure 8 is a schematic structural diagram of a communication device according to an embodiment of the present invention;

[0051] Figure 9 is a schematic structural diagram of another communication device according to an embodiment of the present invention;

[0052] Figure 10 It is a structural diagram of another communication device in an embodiment of the present invention. DETAILED DESCRIPTION

[0053] As mentioned above, in the existing technology, a variety of positioning solutions have been formed, including positioning technologies based on radio access networks, namely RAT-dependent positioning technologies, and positioning technologies independent of radio access networks, namely RAT-independent positioning technologies.

[0054] Currently, the 3rd Generation Partnership Project (3GPP) is researching the introduction of V2X into 5G (New Radio, NR). 5G systems offer greater bandwidth and lower latency, which can better meet the business needs of V2X.

[0055] For 5G, positioning technology has been further discussed within 3GPP, driven by regulatory and business application needs. For details, please refer to TR 38.855. Based on a positioning baseline of 80% user coverage, regulatory requirements for positioning accuracy are slightly lower, requiring horizontal positioning error less than 50 meters, vertical positioning error less than 5 meters, and positioning latency less than 30 seconds. Commercial applications have higher requirements for positioning accuracy, requiring horizontal positioning error less than 3 meters indoors and less than 10 meters outdoors, vertical positioning error less than 3 meters, and positioning latency less than 1 second.

[0056] Specifically, the solutions proposed by the industry can be roughly divided into the following three categories:

[0057] (1) Positioning technology based on the Radio Access Technology (RAT) includes a variety of methods, such as enhanced cell ID (E-CID), downlink observed time difference of arrival (OTDOA), uplink time difference of arrival (UTDOA), E-CID+OTDOA, OTDOA+UTDOA, etc.

[0058] (2) Positioning technology independent of wireless access networks, which specifically includes a variety of methods, such as network-assisted GNSS methods (A-GNSS), Bluetooth-based positioning, WiFi-based positioning, positioning sensor-based inertial measurement unit (IMU) positioning, A-GNSS+IMU, A-GNSS+WiFi, etc.

[0059] (3) Hybrid positioning technology based on RAT and independent RAT, including A-GNSS+OTDOA, A-GNSS+UTDOA and other methods.

[0060] The Vehicle to Everything (V2X) service requirements protocol TS 22.186 specifies requirements for relative positioning. Specifically, the relative lateral positioning accuracy between two terminals supporting V2X applications is 0.1m, and the relative longitudinal positioning accuracy is less than 0.5m.

[0061] In addition, the 3GPP Service and System Aspects (SA1) working group studied short-range services and produced a research report TR 22.855. The short-range service in this report refers to determining the distance between two UEs and / or the direction of one UE relative to another UE.

[0062] To support the aforementioned short-range positioning services and V2X collision avoidance, it is necessary to support direct link, side link, or sidelink (SL) positioning, also known as sidelink. To support SL positioning, it may be necessary to send SL positioning reference signals, such as SL PRS / SRS / SSB / CSI-RS, between SL terminals. Therefore, the configuration of SL positioning reference signals, the transmission process of positioning reference signals between SL terminals, positioning reference signal measurements, and the calculation of positioning results all need to be determined.

[0063] However, the inventors of this invention discovered through research that existing technologies do not support sidelink-based positioning technology, specifically, the transmission of positioning reference signals (PRSs) between SL terminals. Therefore, a communication method is urgently needed to enable the transmission of SL PRSs and provide a comprehensive solution for PRS configuration, transmission, measurement, and calculation of positioning results.

[0064] In an embodiment of the present invention, by sending a configuration information acquisition request and receiving the first configuration information, and the configuration information acquisition request is related to the side link positioning service, the configuration of the SL positioning reference signal and other aspects can be determined, effectively filling the gaps in the existing technology, and can reduce the complexity of the positioning side link user terminal and improve system efficiency.

[0065] In order to make the above-mentioned objects, features and beneficial effects of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0066] Reference Figure 1 , Figure 1 This is a communication system architecture diagram in an embodiment of the present invention.

[0067] Specifically, in the object-to-object direct communication technology or sidelink communication technology (Sidelink, SL), the user equipment (also known as the terminal equipment) and the base station equipment can communicate, and the link between the user equipment and the base station equipment is called the uplink (Uplink) or downlink (Downlink). The user equipment can also communicate directly with the user equipment. The link between the user equipment and the user equipment is called the direct link (Sidelink, SL), and the interface is called the PC5 interface.

[0068] Reference Figure 2 , Figure 2 1 is a flow chart of a communication method according to an embodiment of the present invention. The communication method can be used at a transmitting end and further includes steps S21 to S22:

[0069] Step S21: Sending a configuration information acquisition request, where the configuration information acquisition request is used to acquire first configuration information, where the first configuration information is used to configure a first reference signal, where the first reference signal is used for a sidelink positioning service;

[0070] Step S22: Receive the first configuration information requested by the configuration information acquisition request.

[0071] The transmitting end may be a sidelink transmitting UE or a sidelink receiving UE.

[0072] In an embodiment of the present invention, the cyclic prefix extension generation method provided in steps S21 and S22 can be performed by a user equipment. Specifically, steps S21 and S22 can be performed by a baseband chip in the user equipment, or by a chip module in the user equipment that includes a baseband chip.

[0073] In a specific implementation of step S21, the step of sending the configuration information acquisition request may be sent by the UE to a network device, and the network device may be, for example, a base station.

[0074] Among them, the first reference signal can be used for sidelink positioning services, such as sidelink positioning reference signal (Positioning reference signals, PRS) or sidelink sounding reference signal (Sounding Reference Signal, SRS), or sidelink NR synchronization signal and PBCH block (Synchronization Signaland PBCH Block, SSB) or sidelink channel state information reference signal (Channel State Information-Reference Signal, CSI-RS), etc.

[0075] Specifically, the first reference signal can be a positioning reference signal (PRS) or a channel sounding reference signal (SRS) of LTE or NR, an NR synchronization signal and PBCH block (Synchronization Signal and PBCH Block, SSB) or a channel state information - reference signal (Channel State Information Reference Information, CSI-RS), or other appropriate reference signals.

[0076] In a specific implementation manner of the embodiment of the present invention, the transmitting end UE may be configured to send a configuration information acquisition request to the base station.

[0077] Furthermore, the configuration information acquisition request may include quality of service information for the sidelink positioning service.

[0078] Furthermore, the service quality information may include one or more of the following information: positioning accuracy, response time, and location services (LCS) quality level information.

[0079] Positioning accuracy can include horizontal accuracy, positioning accuracy, and vertical accuracy.

[0080] Response time can be used to indicate no delay, low delay, delay tolerant, etc.

[0081] The positioning service quality of service level information may be used to indicate a service quality level, and may include, for example, a best effort class, an assured class, etc. In another specific embodiment of the present invention, a transmitting end UE may be configured to send a configuration information acquisition request to a base station, where the configuration information acquisition request includes second configuration information, and the second configuration information includes configuration information for recommending configuration of the first reference signal, so that the base station determines the first configuration information based on the recommended positioning reference signal configuration information, and then receives the first configuration information from the base station.

[0082] Furthermore, the second configuration information may include one or more of the following information: switching information of the first reference signal, beam switching information of the first reference signal, the period of the first reference signal, the bandwidth of the first reference signal, the resource set of the first reference signal resource, and reference signal pattern configuration information of the first reference signal.

[0083] The switch information of the first reference signal can be used to indicate whether the first reference signal is turned on or off. The beam switch information of the first reference signal can be used to indicate whether each beam of the first reference signal is turned on or off. The resource set of the first reference signal resource can be used to indicate the resource set of the first reference signal and the specific resources of the first reference signal. The reference signal pattern configuration information of the first reference signal can be used to indicate the pattern of the reference signal, such as a comb structure with a comb factor of 2 (Comb-2), a comb factor of 4 (Comb-4), a comb factor of 6 (Comb-6), a comb factor of 8 (Comb-8), and a comb factor of 12 (Comb-12).

[0084] In an embodiment of the present invention, by setting the configuration acquisition request to include second configuration information, the second configuration information is used to recommend the configuration of the first reference signal, so that the network device can configure the first reference signal based on the configuration recommended by the sending UE, so that the reference signal can be configured according to the needs of the UE, so that the configuration of the reference signal can better meet the positioning service needs.

[0085] Furthermore, in an embodiment of the present invention, the step of sending a configuration information acquisition request may include: sending a first message to the network device, the first message including the configuration information acquisition request, the first message being a wireless resource control message, or the first message being message Msg3 in a random access process.

[0086] Furthermore, the radio resource control information of the first message includes but is not limited to a UEAssistanceInformation or a SidelinkUEInformation message.

[0087] Specifically, in the embodiment of the present invention, a Radio Resource Control (RRC) message may be used to carry the first message and sent to the network device.

[0088] In another specific implementation, the third message (Msg3) of the random access process may also be used to carry the first message and sent to the network device.

[0089] In the embodiment of the present invention, by setting the step of sending the configuration information acquisition request to include sending a first message to the network device, it is possible to implement actual configuration by the network device and then obtain the first configuration information from the network device.

[0090] Reference Figure 3 , Figure 3 4 is a data flow diagram of the second communication method in an embodiment of the present invention. The second communication method may include steps S31 to S39, each of which is described below.

[0091] Step S31 : the sending terminal 32 sends a configuration information acquisition request to the network device 31 .

[0092] Step S32: The network device 31 determines the first configuration information. The first configuration information may be determined after receiving the configuration information acquisition request in S31.

[0093] Step S33: The network device 31 sends the first configuration information to the sending terminal 32.

[0094] In the specific implementation, please refer to the details of steps S31 to S33. Figure 2 The steps are described in , which will not be repeated here.

[0095] Step S34: the sending terminal 32 sends the first configuration information to the receiving terminal 33. The sending terminal 32 may send the first configuration information to the receiving terminal 33 after receiving the first configuration information from the network device 31.

[0096] Among them, steps S31, S32, and S33 provide a specific embodiment of obtaining the first configuration information. In addition, the first configuration information can also be generated by the sending terminal 32 itself, or the first configuration information can be pre-configured by the network device 31, so that the receiving terminal 33 can perform positioning measurements based on the first configuration information.

[0097] Step S35: The transmitting terminal 32 sends sidelink control information to the receiving terminal 33, where the sidelink control information is used to indicate a first resource, where the first resource is a resource that carries the first reference signal.

[0098] Furthermore, the sidelink control information (Sidelink Control Information, SCI) may include resource location indication information; wherein, the resource location indication information may be used to indicate the location of the first resource, and the first resource may be a resource carrying the first reference signal.

[0099] Specifically, the resource of the first reference signal may include a time-frequency resource of the first reference signal, and the first reference signal may be obtained more accurately based on the position of the first resource.

[0100] Furthermore, the SCI may also include one or more of the following information: reference signal type indication information, destination address information; wherein the destination address information is used to indicate an address of a receiving device of the first reference signal.

[0101] Specifically, the reference signal type indication information may be used to indicate the type of the first reference signal, such as a positioning reference signal, and the destination address information is used to indicate the address of a receiving device of the first reference signal.

[0102] It should be noted that when the receiving terminal 33 receives that the destination address indicated in the SCI is its own address, and the reference signal type indicated by the SCI is the first reference signal type, the receiving terminal 33 can measure the first reference signal at the time-frequency resource position indicated in the SCI.

[0103] Step S36 : The transmitting terminal 32 sends a first reference signal to the receiving terminal 33 .

[0104] Step S37: The receiving terminal 33 determines the first resource.

[0105] Specifically, the receiving terminal 33 may detect and receive the SCI information of S35 , determine the first resource, and receive the first reference signal on the first resource.

[0106] Specifically, the first reference signal may be sent from the transmitting terminal 32 to the receiving terminal 33 on the first resource.

[0107] In an embodiment of the present invention, the first configuration information is sent by the sending terminal 32, so that the receiving terminal 33 can detect and measure the positioning signal based on the first configuration information, and then the sending terminal 32 sends the SCI to enable the receiving terminal 33 to determine the resources carrying the first reference signal, and then the sending terminal 32 sends the first reference signal on the first resource, so that the receiving terminal 33 can accurately receive the first reference signal.

[0108] Step S38: The receiving terminal 33 determines the signal measurement result.

[0109] Specifically, the receiving terminal 33 may obtain a signal measurement result by measuring the first reference signal.

[0110] The signal measurement result is used to indicate the relative position information of the first reference signal transmitting terminal 32 and the receiving terminal 33. The relative position information can be used to indicate the relative position of one of the transmitting terminal 32 and the receiving terminal 33 relative to the other.

[0111] Step S39: The receiving terminal 33 determines the relative position information of the transmitting terminal 32 and the receiving terminal 33. Specifically, the relative position information of the transmitting terminal 32 and the receiving terminal 33 may be determined based on the signal measurement result.

[0112] Furthermore, the relative position information may include a first azimuth angle and a distance between the transmitting device and the receiving device, wherein the first azimuth angle is the azimuth angle of the transmitting terminal 32 relative to the receiving terminal 33, or the azimuth angle of the receiving terminal 33 relative to the transmitting terminal 32.

[0113] The step of calculating the distance may be to calculate the distance between the sending terminal 32 and the receiving terminal 33 based on the signal transmission time obtained based on the time when the receiving terminal 33 receives the first reference signal and the timestamp information carried when sending the first reference signal.

[0114] Specifically, the distance between the transmitting terminal 32 and the receiving terminal 33 is obtained by multiplying the signal transmission time by the speed of light.

[0115] In an embodiment of the present invention, the relative position information of the transmitting terminal 32 and the receiving terminal 33 is determined based on the signal measurement result, and the relative position of one of the transmitting terminal 32 of the first reference signal and the receiving terminal 33 relative to the other can be accurately determined, thereby realizing the positioning function more accurately.

[0116] Reference Figure 4 , Figure 4 This is a data flow diagram of the third communication method in the embodiment of the present invention. Figure 3 The communication method shown is different in that the relative position information between the transmitting terminal 32 and the receiving terminal 33 is calculated by the transmitting terminal 32 .

[0117] Specifically, after executing step S38, execute steps S49 and S410.

[0118] In step S49 , the receiving terminal 33 sends the signal measurement result to the transmitting terminal 32 .

[0119] In step S410 , the transmitting terminal 32 determines the relative position information of the transmitting terminal 32 and the receiving terminal 33 , wherein the relative position information of the transmitting terminal 32 and the receiving terminal 33 may be determined based on the signal measurement result of step S49 .

[0120] Specifically, the receiving terminal 33 may perform measurement and then feed back the signal measurement result to the sending terminal 32 to calculate the relative position information.

[0121] More specifically, the signal measurement result may be a measurement result obtained by the receiving terminal measuring the first reference signal, or the signal measurement result may be a position estimation result calculated by the receiving terminal based on the signal measurement result.

[0122] More specifically, the measurement result of measuring the first reference signal may be angle information, such as angle of arrival (AoA) information, or time information, such as round-trip time (RTT), time of arrival (ToA), or signal strength information, such as reference signal received power (RSRP), reference signal received quality (RSRQ).

[0123] More specifically, the receiving terminal 33 may feed back the signal measurement result to the transmitting terminal 32 via RRC signaling, and the transmitting terminal 32 may calculate the relative position information of the receiving terminal 33 relative to the transmitting terminal 32, such as the first azimuth angle and the distance between the two, based on the signal measurement result.

[0124] For more details about the steps of calculating distance, please refer to Figure 3 The process is performed as described in step S39 in the flow chart and will not be repeated here.

[0125] Reference Figure 5 , Figure 5 This is a data flow diagram of the fourth communication method in the embodiment of the present invention. Figure 3 The communication method shown differs in that the receiving terminal 33 sends the SCI information and the first reference signal to the transmitting terminal 32, and the receiving terminal 33 determines the first resource, the signal measurement result, and the relative position information between the transmitting terminal 32 and the receiving terminal 33. Specifically, after executing step S34, steps S55 to S59 are executed.

[0126] In step S55 , the receiving terminal 33 sends the SCI information to the transmitting terminal 32 .

[0127] In step S56 , the receiving terminal 33 sends a first reference signal to the transmitting terminal 32 .

[0128] Specifically, the first reference signal may be an SRS, wherein the SRS is sent in a different direction from the PRS, and may be sent from the receiving terminal 33 to the transmitting terminal 32. In step S57, the transmitting terminal 32 determines the first resource.

[0129] Specifically, the transmitting terminal 32 may detect and receive the SCI information of S55, determine a first resource, and receive the first reference signal on the first resource.

[0130] In step S58 , the transmitting terminal 32 determines the signal measurement result.

[0131] In step S59 , the transmitting terminal 32 determines the relative position information of the transmitting terminal 32 and the receiving terminal 33 , wherein the relative position information of the transmitting terminal 32 and the receiving terminal 33 may be determined based on the signal measurement result of step S58 .

[0132] The execution subject of steps S58 to S59 is the sending terminal 32. For more details, please refer to Figure 3 The steps S38 to S39 are described in detail and will not be repeated here.

[0133] Reference Figure 6 , Figure 6 This is a data flow diagram of the fifth communication method in the embodiment of the present invention. Figure 5 The communication method shown is different in that the relative position information between the transmitting terminal 32 and the receiving terminal 33 is calculated by the receiving terminal 33 .

[0134] Specifically, after executing step S34, execute steps S55 to S58, and execute steps S69 and S610.

[0135] In step S69 , the transmitting terminal 32 transmits the signal measurement result to the receiving terminal 33 .

[0136] In step S610 , the receiving terminal 33 determines the relative position information of the transmitting terminal 32 and the receiving terminal 33 , wherein the relative position information of the transmitting terminal 32 and the receiving terminal 33 may be determined based on the signal measurement result of step S69 .

[0137] For more details about step S610, please refer to Figure 4 The process is performed as described in step S410 in the flow chart and will not be repeated here.

[0138] Reference Figure 7 , Figure 7 Schematic diagram of an azimuth angle in an embodiment of the present invention.

[0139] As shown in the figure, the azimuth angle may be the azimuth of the standard UE relative to the current geographical location of the observation UE, for example, the standard UE is 5 degrees west of due south of the observation UE and 10 degrees above the horizontal.

[0140] Furthermore, the first azimuth angle can be set as a 2-dimensional azimuth angle, for example, only determining that the standard UE is 5 degrees west of due south of the observed UE without determining the angle difference above and below, which helps to reduce the computational complexity and improve the efficiency of determining the first azimuth angle.

[0141] Furthermore, the first azimuth angle can be set as a three-dimensional azimuth angle, for example, determining that the standard UE is 5 degrees west of due south of the observed UE, and also determining that the standard UE is 10 degrees above the horizontal of the observed UE, etc., which helps to improve the accuracy of the first azimuth angle.

[0142] Reference Figure 8 , Figure 8 FIG1 is a schematic diagram of the structure of a communication device according to an embodiment of the present invention. The communication device can be used for a sending terminal and can also include:

[0143] A request sending module 81 is configured to send a configuration information acquisition request, where the configuration information acquisition request is used to acquire first configuration information, where the first configuration information is used to configure a first reference signal, where the first reference signal is used for a sidelink positioning service;

[0144] The information receiving module 82 is configured to receive the first configuration information requested by the configuration information acquisition request.

[0145] For the principles, specific implementations and beneficial effects of the communication device, please refer to the relevant description of the communication method described above, which will not be repeated here.

[0146] Reference Figure 9 , Figure 9 FIG. 1 is a schematic diagram of the structure of another communication device according to an embodiment of the present invention. The communication device can be used in a network device and may further include:

[0147] A request receiving module 91 is configured to receive a configuration information acquisition request, where the configuration information acquisition request is used to acquire first configuration information, where the first configuration information is used to configure a first reference signal, where the first reference signal is used for a sidelink positioning service;

[0148] The information sending module 92 is configured to send the first configuration information requested by the configuration information acquisition request.

[0149] For the principles, specific implementations and beneficial effects of the communication device, please refer to the relevant description of the communication method described above, which will not be repeated here.

[0150] Reference Figure 10 , Figure 10 FIG. 1 is a schematic diagram of the structure of another communication device according to an embodiment of the present invention. The communication device may be used for a receiving terminal and may further include:

[0151] A configuration information receiving module 101 is configured to receive first configuration information, where the first configuration information is used to configure a first reference signal, where the first reference signal is used for a sidelink positioning service;

[0152] A control information receiving module 102 is configured to receive sidelink control information according to the first configuration information, where the sidelink control information is used to indicate a first resource, where the first resource is a resource carrying the first reference signal;

[0153] The signal receiving module 103 is configured to receive the first reference signal on the first resource.

[0154] For the principles, specific implementations and beneficial effects of the communication device, please refer to the relevant description of the communication method described above, which will not be repeated here.

[0155] In a specific implementation, the above-mentioned communication device may correspond to a chip with data processing function in the user equipment, such as a baseband chip; or correspond to a chip module in the user equipment including a chip with data processing function, or correspond to the user equipment.

[0156] In specific implementations, the modules / units included in the various devices and products described in the above embodiments may be software modules / units or hardware modules / units, or may be partially software modules / units and partially hardware modules / units.

[0157] For example, for each device or product applied to or integrated into a chip, each module / unit contained therein may be implemented in the form of hardware such as circuits, or at least some of the modules / units may be implemented in the form of software programs, which run on a processor integrated inside the chip, and the remaining (if any) modules / units may be implemented in the form of hardware such as circuits; for each device or product applied to or integrated into a chip module, each module / unit contained therein may be implemented in the form of hardware such as circuits, and different modules / units may be located in the same component (such as a chip, circuit module, etc.) or different components of the chip module, or at least some of the modules / units may be implemented in the form of software programs. The element can be implemented in the form of a software program, which runs on the processor integrated inside the chip module, and the remaining (if any) modules / units can be implemented in the form of hardware such as circuits; for various devices and products applied to or integrated in the terminal, the various modules / units contained therein can be implemented in the form of hardware such as circuits, and different modules / units can be located in the same component (for example, chip, circuit module, etc.) or different components in the terminal, or, at least some modules / units can be implemented in the form of a software program, which runs on the processor integrated inside the terminal, and the remaining (if any) modules / units can be implemented in the form of hardware such as circuits.

[0158] An embodiment of the present invention further provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, performs the steps of the above method. The storage medium may be a computer-readable storage medium, such as a non-volatile memory or a non-transitory memory, or an optical disk, a mechanical hard disk, a solid-state drive, or the like.

[0159] Specifically, in the embodiment of the present invention, the processor may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor, etc.

[0160] It should also be 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 random access memory (RAM) are available, such as static RAM (SRAM), dynamic random access memory (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), and direct rambus RAM (DR RAM).

[0161] An embodiment of the present invention further provides a communication device, including a memory and a processor, wherein the memory stores a computer program that can be executed on the processor, and when the processor executes the computer program, it executes the steps of the communication method described above and shown in the accompanying drawings. The communication device can be an edge link transmitting terminal.

[0162] An embodiment of the present invention further provides a communication device comprising a memory and a processor, wherein the memory stores a computer program executable on the processor, and when the processor executes the computer program, the processor executes the steps of the communication method described above and illustrated in the accompanying drawings. The communication device may be a network device.

[0163] An embodiment of the present invention further provides a communication device, including a memory and a processor, wherein the memory stores a computer program that can be executed on the processor, and when the processor executes the computer program, the steps of the communication method described above and shown in the accompanying drawings are performed. The communication device may be an edge link receiving terminal.

[0164] In the embodiments of the present application, the term "UE" may refer to various forms of user equipment (UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station (MS), remote station, remote terminal, mobile device, user terminal, terminal equipment, wireless communication device, user agent, or user device. The terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a future 5G network, or a terminal device in a future evolved Public Land Mobile Network (PLMN), etc., and the embodiments of the present application are not limited thereto.

[0165] The technical solution of this invention can be applied to 5G (5Generation) communication systems, as well as 4G and 3G communication systems, and can also be applied to various new communication systems in the future, such as 6G and 7G.

[0166] The technical solution of this invention is also applicable to different network architectures, including but not limited to relay network architecture, dual-link architecture, Vehicle-to-Everything (vehicle-to-anything communication) architecture, etc.

[0167] The network device in the embodiment of the present invention may be a network side (network) which refers to a communication network that provides communication services to a terminal, including a base station of a wireless access network, a base station controller of a wireless access network, and equipment on the core network side.

[0168] The embodiment of the present application defines the unidirectional communication link from the access network to the terminal as a downlink, the data transmitted on the downlink is downlink data, and the transmission direction of the downlink data is called the downlink direction; and the unidirectional communication link from the terminal to the access network is an uplink, the data transmitted on the uplink is uplink data, and the transmission direction of the uplink data is called the uplink direction.

[0169] It should be understood that the term "and / or" in this document simply describes a relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document indicates that the related objects are in an "or" relationship.

[0170] The term "plurality" used in the embodiments of the present application refers to two or more.

[0171] The first, second, etc. descriptions appearing in the embodiments of this application are only for illustration and distinction of the description objects. There is no order, nor does it indicate any special limitation on the number of devices in the embodiments of this application, and cannot constitute any limitation on the embodiments of this application.

[0172] The "connection" appearing in the embodiments of the present application refers to various connection methods such as direct connection or indirect connection to achieve communication between devices, and the embodiments of the present application do not impose any limitations on this.

[0173] The above embodiments can be implemented in whole or in part by software, hardware, firmware or any other combination. When implemented using software, the above embodiments 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 or computer programs. When the computer instructions or computer program are loaded or 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 device. 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 one website, computer, server or data center to another website, computer, server or data center via wired or wireless means. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that contains one or more available media sets. The available medium can be a magnetic medium (for example, a floppy disk, a hard disk, a tape), an optical medium (for example, a DVD), or a semiconductor medium. The semiconductor medium can be a solid-state drive.

[0174] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0175] In the several embodiments provided in this application, it should be understood that the disclosed methods, devices, and systems can be implemented in other ways.

[0176] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be based on the scope defined by the claims.

Claims

1. A communication method, characterized in that: include: Sending a configuration information acquisition request, where the configuration information acquisition request is used to acquire first configuration information, where the first configuration information is used to configure a first reference signal, where the first reference signal is used for a sidelink positioning service; Receiving the first configuration information requested by the configuration information acquisition request; The configuration information acquisition request includes second configuration information, where the second configuration information is used to recommend configuring the first reference signal.

2. The method according to claim 1, characterized in that The configuration information acquisition request includes quality of service information for the sidelink positioning service.

3. The method according to claim 2, characterized in that The service quality information includes one or more of the following information: Positioning accuracy, response time, and positioning service quality level information.

4. The method according to claim 1, wherein The second configuration information includes one or more of the following information: Switch information of the first reference signal, beam switch information of the first reference signal, period of the first reference signal, bandwidth of the first reference signal, resource set of the first reference signal resource, and reference signal pattern configuration information of the first reference signal.

5. The method according to any one of claims 1 to 4, characterized in that The sending of the configuration information acquisition request includes: A first message is sent, where the first message includes the configuration information acquisition request, the first message is a radio resource control message, or the first message is message Msg3 in a random access process.

6. The method according to any one of claims 1 to 4, characterized in that The method further comprises: Sending the first configuration information; sending sidelink control information, where the sidelink control information is used to indicate a first resource, where the first resource is a resource carrying the first reference signal; The first reference signal is sent on the first resource.

7. The method according to claim 6, characterized in that The sidelink control information includes resource location indication information; The resource location indication information is used to indicate the location of the first resource.

8. The method according to claim 6, characterized in that The sidelink control information further includes one or more of the following information: reference signal type indication information, destination address information; The destination address information is used to indicate an address of a receiving device of the first reference signal.

9. The method according to any one of claims 7-8, characterized in that The method further comprises: A signal measurement result is received, where the signal measurement result is obtained based on the first reference signal, and the signal measurement result is used to indicate relative position information between a sending device and a receiving device of the first reference signal.

10. The method according to claim 9, characterized in that The method further comprises: The relative position information of the sending device and the receiving device is determined according to the signal measurement result.

11. The method according to claim 10, characterized in that The relative position information includes a first azimuth angle and a distance between the transmitting device and the receiving device. The first azimuth angle is the azimuth angle of the transmitting device relative to the receiving device, or the azimuth angle of the receiving device relative to the transmitting device.

12. A communication method, characterized in that: include: receiving a configuration information acquisition request, where the configuration information acquisition request is used to acquire first configuration information, where the first configuration information is used to configure a first reference signal, where the first reference signal is used for a sidelink positioning service; Sending the first configuration information requested by the configuration information acquisition request; The configuration information acquisition request includes second configuration information, where the second configuration information is used to recommend configuring the first reference signal.

13. The method according to claim 12, characterized in that The configuration information acquisition request includes quality of service information for the sidelink positioning service.

14. The method according to claim 13, characterized in that The service quality information includes one or more of the following information: Positioning accuracy, response time, and positioning service quality level information.

15. The method according to claim 12, characterized in that The second configuration information includes one or more of the following information: Switch information of the first reference signal, beam switch information of the first reference signal, period of the first reference signal, bandwidth of the first reference signal, resource set of the first reference signal resource, and reference signal pattern configuration information of the first reference signal.

16. The method according to any one of claims 12 to 15, characterized in that The receiving a configuration information acquisition request includes: A first message is received, where the first message includes the configuration information acquisition request, the first message is a radio resource control message, or the first message is message Msg3 in a random access process.

17. A communication method, characterized in that: include: receiving first configuration information, where the first configuration information is used to configure a first reference signal, where the first reference signal is used for a sidelink positioning service; receiving, according to the first configuration information, sidelink control information, where the sidelink control information is used to indicate a first resource, where the first resource is a resource carrying the first reference signal; receiving the first reference signal on the first resource; The configuration information acquisition request includes second configuration information, where the second configuration information is used to recommend configuring the first reference signal.

18. The method according to claim 17, characterized in that The sidelink control information includes resource location indication information; The resource location indication information is used to indicate the location of the first resource.

19. The method according to claim 17, wherein The sidelink control information further includes one or more of the following information: reference signal type indication information, destination address information; The destination address information is used to indicate an address of a receiving device of the first reference signal.

20. The method according to any one of claims 17 to 19, characterized in that: The method further comprises: A signal measurement result is determined based on the first reference signal, where the signal measurement result is used to indicate relative position information between a sending device and a receiving device of the first reference signal.

21. The method according to claim 20, characterized in that The method further comprises: The relative position information of the sending device and the receiving device is determined according to the signal measurement result.

22. The method according to claim 21, characterized in that The relative position information includes a first azimuth angle and a distance between the sending device and the receiving device; The first azimuth angle is the azimuth angle of the sending device relative to the receiving device, or the azimuth angle of the receiving device relative to the sending device.

23. A communication device, characterized in that: include: a request sending module, configured to send a configuration information acquisition request, where the configuration information acquisition request is used to acquire first configuration information, where the first configuration information is used to configure a first reference signal, where the first reference signal is used for a sidelink positioning service; An information receiving module, configured to receive the first configuration information requested by the configuration information acquisition request; The configuration information acquisition request includes second configuration information, where the second configuration information is used to recommend configuring the first reference signal.

24. A communication device, characterized in that: include: a request receiving module, configured to receive a configuration information acquisition request, wherein the configuration information acquisition request is used to obtain first configuration information, where the first configuration information is used to configure a first reference signal, where the first reference signal is used for a sidelink positioning service; An information sending module, configured to send the first configuration information requested by the configuration information acquisition request; The configuration information acquisition request includes second configuration information, where the second configuration information is used to recommend configuring the first reference signal.

25. A communication device, characterized in that: include: a configuration information receiving module, configured to receive first configuration information, where the first configuration information is used to configure a first reference signal, where the first reference signal is used for a sidelink positioning service; a control information receiving module, configured to receive sidelink control information according to the first configuration information, where the sidelink control information is used to indicate a first resource, where the first resource is a resource carrying the first reference signal; a signal receiving module, configured to receive the first reference signal on the first resource; The configuration information acquisition request includes second configuration information, where the second configuration information is used to recommend configuring the first reference signal.

26. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program. When a computer runs the computer program, the communication method according to any one of claims 1 to 11 or the communication method according to any one of claims 12 to 22 is executed.

27. A communication device, characterized in that: The communication device comprises a memory and a processor, wherein a computer program is stored in the memory, and when the processor runs the computer program, the communication device executes the communication method according to any one of claims 1 to 11.

28. A communication device, characterized in that: The communication device comprises a memory and a processor, wherein a computer program is stored in the memory, and when the processor runs the computer program, the communication device executes the communication method according to any one of claims 12 to 16.

29. A communication device, characterized in that: The communication device comprises a memory and a processor, wherein a computer program is stored in the memory, and when the processor runs the computer program, the communication device executes the communication method according to any one of claims 17 to 22.

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