Information transmission method and device

Abstract

The invention provides an information transmission method and device, and aims to solve the problems of redundant signaling overhead and time delay caused by a mode that a terminal acquires whether a network supports SL positioning or not in related technologies. The method provided by the embodiment of the invention comprises the following steps: a terminal acquires system information sent by a base station, the system information comprises direct link SL positioning indication information, and the SL positioning indication information is used for indicating whether a network supports SL positioning or not. According to the scheme, the terminal can know whether the network supports SL positioning or not without special signaling interaction, and signaling overhead and time delay caused by the fact that the terminal and the network can know whether the network supports SL positioning or not only through special signaling are avoided.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to an information transmission method and device. Background Art

[0002] In the related technology, SideLink (SL) positioning introduces two types of operations: UE-only and network-based. The UE-only operation is aimed at the scenario where all target terminals (target UE) and anchor terminals (anchor UE) participating in SL positioning are offline, or the target UE and anchor UE are online, but the network does not support SL positioning. In the case where the target UE and anchor UE are online, but the network does not support SL positioning, the UE needs to initiate a SL positioning request to the network, which is rejected by the network. In this way, the UE needs to enter the connected state first, establish Radio Resource Control (RRC) and Non Access Stratum (NAS) connections, and then interact with the core network equipment to learn that the network does not support SL positioning. This process results in redundant signaling overhead and delay. Summary of the invention

[0003] The purpose of the present application is to provide an information transmission method and device to solve the problem in the related art that the way in which a terminal obtains whether a network supports SL positioning will cause redundant signaling overhead and delay.

[0004] In order to achieve the above object, the present application provides an information transmission method, comprising:

[0005] The terminal obtains system information sent by the base station, where the system information includes direct link SL positioning indication information, and the SL positioning indication information is used to indicate whether the network supports SL positioning.

[0006] Optionally, the terminal determines a SL positioning mode according to the SL positioning indication information.

[0007] Optionally, the system information includes a system information block or a positioning system information block.

[0008] Optionally, the SL positioning indication information is determined based on a public land mobile network PLMN, or the SL positioning indication information is not determined based on a PLMN.

[0009] Optionally, the method of the embodiment of the present application further includes:

[0010] The terminal determines the valid area of ​​the system information according to the area range indication field in the system information, and the area range indication field is used to indicate whether the SL positioning indication information is area valid information.

[0011] Optionally, the terminal determines, according to an area range indication field in the system information, a valid area of ​​the system information, including:

[0012] In a case where the area range indication field indicates that the SL positioning indication information is area valid information, determining an area corresponding to the system information area identifier in the system information as a valid area of ​​the SL positioning indication information;

[0013] When the area range indication field indicates that the SL positioning indication information is not area valid information, it is determined that the cell corresponding to the terminal is the valid area of ​​the SL positioning indication information.

[0014] Optionally, the terminal obtains system information sent by the base station, including:

[0015] The terminal acquires the system information based on periodic broadcast of the base station;

[0016] Alternatively, the terminal sends a first request message to the base station, where the first request message is used to request to obtain the system information; the terminal receives a first response message sent by the base station, where the first response message includes the system information.

[0017] Optionally, the terminal determines, according to the SL positioning indication, a SL positioning mode, including:

[0018] When the SL positioning indication information indicates that the network does not support SL positioning, determining that the SL positioning mode is a first SL positioning mode, where the first SL positioning mode is a positioning mode in which only the terminal participates;

[0019] When the SL positioning indication information indicates that the network supports SL positioning, the SL positioning mode is determined to be a second SL positioning mode, and the second SL positioning mode is a network-based positioning mode.

[0020] The present application also provides an information transmission method, including:

[0021] The base station sends system information, where the system information includes direct link SL positioning indication information, where the SL positioning indication information is used to indicate whether the network supports SL positioning.

[0022] Optionally, the method further comprises:

[0023] The base station obtains the SL positioning indication information from a target device, where the target device includes an access and mobility management function AMF and / or a positioning management function LMF.

[0024] Optionally, the base station obtains the SL positioning indication information from the target device, including:

[0025] The base station sends a second request message to the target device, where the second request message is used to request to obtain the SL positioning indication information;

[0026] The base station receives a second response message sent by the target device, where the second response message includes the SL positioning indication information.

[0027] Optionally, the base station obtains the SL positioning indication information from the target device, including:

[0028] When the base station establishes a connection with the target device, the base station obtains the SL positioning indication information from the target device;

[0029] Alternatively, when the SL positioning supported by the network changes, the base station obtains the SL positioning indication information from the target device.

[0030] The embodiment of the present application also provides an information transmission device, including a memory, a transceiver, and a processor;

[0031] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0032] Obtain system information sent by the base station, where the system information includes direct link SL positioning indication information, and the SL positioning indication information is used to indicate whether the network supports SL positioning.

[0033] Optionally, the processor further implements the following steps:

[0034] The SL positioning mode is determined according to the SL positioning indication information.

[0035] Optionally, the system information includes a system information block or a positioning system information block.

[0036] Optionally, the SL positioning indication information is determined based on a public land mobile network PLMN, or the SL positioning indication information is not determined based on a PLMN.

[0037] Optionally, the processor further implements the following steps:

[0038] The valid area of ​​the system information is determined according to the area range indication field in the system information, and the area range indication field is used to indicate whether the SL positioning indication information is area valid information.

[0039] Optionally, the processor further implements the following steps:

[0040] In a case where the area range indication field indicates that the SL positioning indication information is area valid information, determining an area corresponding to the system information area identifier in the system information as a valid area of ​​the SL positioning indication information;

[0041] When the area range indication field indicates that the SL positioning indication information is not area valid information, it is determined that the cell corresponding to the terminal is the valid area of ​​the SL positioning indication information.

[0042] Optionally, the processor further implements the following steps:

[0043] Acquiring the system information based on periodic broadcast of a base station;

[0044] Alternatively, a first request message is sent to a base station, where the first request message is used to request acquisition of system information; and a first response message is received from the base station, where the first response message includes the system information.

[0045] Optionally, the processor further implements the following steps:

[0046] When the SL positioning indication information indicates that the network does not support SL positioning, determining that the SL positioning mode is a first SL positioning mode, where the first SL positioning mode is a positioning mode in which only the terminal participates;

[0047] When the SL positioning indication information indicates that the network supports SL positioning, the SL positioning mode is determined to be a second SL positioning mode, and the second SL positioning mode is a network-based positioning mode.

[0048] The embodiment of the present application also provides an information transmission device, including a memory, a transceiver, and a processor;

[0049] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0050] Send system information, where the system information includes direct link SL positioning indication information, where the SL positioning indication information is used to indicate whether the network supports SL positioning.

[0051] Optionally, the processor further implements the following steps:

[0052] The SL positioning indication information is obtained from a target device, where the target device includes an access and mobility management function AMF and / or a positioning management function LMF.

[0053] Optionally, the processor further implements the following steps:

[0054] Sending a second request message to the target device, where the second request message is used to request to obtain the SL positioning indication information;

[0055] Receive a second response message sent by the target device, where the second response message includes the SL positioning indication information.

[0056] Optionally, the processor further implements the following steps:

[0057] When the base station establishes a connection with the target device, obtaining the SL positioning indication information from the target device;

[0058] Alternatively, when the SL positioning supported by the network changes, the SL positioning indication information is obtained from the target device.

[0059] The present application also provides an information transmission device, including:

[0060] The first acquisition unit is used to acquire system information sent by a base station, where the system information includes direct link SL positioning indication information, and the SL positioning indication information is used to indicate whether the network supports SL positioning.

[0061] The present application also provides an information transmission device, including:

[0062] The first sending unit is used to send system information, where the system information includes direct link SL positioning indication information, and the SL positioning indication information is used to indicate whether the network supports SL positioning.

[0063] An embodiment of the present application further provides a processor-readable storage medium, wherein the processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the steps of the information transmission method as described above.

[0064] The above technical solution of the present application has at least the following beneficial effects:

[0065] In an embodiment of the present application, the terminal obtains system information sent by the base station, and the system information includes direct link SL positioning indication information, and the SL positioning indication information is used to indicate whether the network supports SL positioning, so that the terminal can know whether the network supports SL positioning without interacting through dedicated signaling, avoiding the signaling overhead and delay caused by the terminal and the network having to use dedicated signaling to know whether the network supports SL positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] Figure 1 A structural diagram showing a network system to which the embodiments of the present application can be applied;

[0067] Figure 2 A schematic diagram showing a flow chart of an information transmission method according to an embodiment of the present application;

[0068] Figure 3 One of the interactive schematic diagrams showing the information transmission method according to an embodiment of the present application;

[0069] Figure 4 A second interactive schematic diagram showing the information transmission method according to an embodiment of the present application;

[0070] Figure 5 A third interactive diagram showing the information transmission method according to an embodiment of the present application;

[0071] Figure 6 A second flowchart of the information transmission method according to an embodiment of the present application is shown;

[0072] Figure 7 One of the structural block diagrams of the information transmission device according to the embodiment of the present application is shown;

[0073] Figure 8 A second structural block diagram showing the information transmission device according to an embodiment of the present application;

[0074] Fig. 9 One of the module schematic diagrams showing the information transmission device according to an embodiment of the present application;

[0075] Fig.10 A second schematic diagram of a module showing the information transmission device according to an embodiment of the present application. DETAILED DESCRIPTION

[0076] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0077] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein, for example, are implemented in a sequence other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, the process, method, system, product or equipment comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0078] In the embodiments of the present application, the term "and / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent three situations: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship. In the embodiments of the present application, the term "plurality" refers to two or more than two, and other quantifiers are similar.

[0079] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0080] Figure 1 A block diagram of a wireless communication system applicable to an embodiment of the present application is shown. The wireless communication system includes a terminal device 11 and a network side device (or network device) 12. Among them, the terminal device 11 may also be referred to as a terminal or a user terminal (User Equipment, UE). It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may be a base station or a core network. It should be noted that in the embodiment of the present application, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.

[0081] like Figure 2 As shown, an embodiment of the present application provides an information transmission method, including:

[0082] Step 201: The terminal obtains system information sent by the base station, where the system information includes direct link SL positioning indication information, and the SL positioning indication information is used to indicate whether the network supports SL positioning.

[0083] Optionally, the SL positioning indication information is used to indicate whether the 5G core network supports SL positioning, or to indicate whether the location management function (LMF) supports SL positioning, or to indicate whether the current regional network supports SL positioning.

[0084] In the embodiment of the present application, the adjacent terminal (such as Figure 1 The two terminal devices in a network can transmit data through a direct communication link (or a straight link, also called Sidelink) within a short distance. This method is called direct communication. The wireless interface corresponding to the Sidelink link is called a direct communication interface, also called a Sidelink interface or a PC5 interface.

[0085] In an embodiment of the present application, the terminal obtains system information sent by the base station, the system information includes direct link SL positioning indication information, and the SL positioning indication information is used to indicate whether the network supports SL positioning; the terminal determines the SL positioning mode according to the SL positioning indication information. The above scheme allows the terminal to know whether the network supports SL positioning without interacting through dedicated signaling, avoiding the signaling overhead and delay caused by the terminal and the network having to use dedicated signaling to know whether the network supports SL positioning.

[0086] Optionally, the method of the embodiment of the present application further includes:

[0087] The terminal determines the SL positioning mode according to the SL positioning indication information.

[0088] The above-mentioned SL positioning method includes a first SL positioning method or a second SL positioning method. The first SL positioning method is a positioning method in which only the terminal participates, and the second SL positioning method is a network-based positioning method.

[0089] Optionally, the system information includes a system information block (System Information Block, SIB) or a positioning system information block (Positioning SIB, posSIB).

[0090] The above positioning system information block can be described as a system information block used for positioning.

[0091] Optionally, the SL positioning indication information is determined based on a public land mobile network (Public Land Mobile Network, PLMN), or the SL positioning indication information is not determined based on the PLMN.

[0092] Optionally, the method of the embodiment of the present application further includes:

[0093] The terminal determines the valid area of ​​the system information according to the area range indication field in the system information, and the area range indication field is used to indicate whether the SL positioning indication information is area valid information.

[0094] Optionally, the terminal determines, according to an area range indication field in the system information, a valid area of ​​the system information, including:

[0095] In a case where the area range indication field indicates that the SL positioning indication information is area valid information, determining an area corresponding to the system information area identifier in the system information as a valid area of ​​the SL positioning indication information;

[0096] When the area range indication field indicates that the SL positioning indication information is not area valid information, it is determined that the cell corresponding to the terminal is the valid area of ​​the SL positioning indication information.

[0097] In an embodiment of the present application, when the area range indication domain indicates that the SL positioning indication information is area valid information, the terminal does not need to re-acquire the system information when moving between cells corresponding to the same system information area identifier (systemInformationAreaID); when the area range indication domain indicates that the SL positioning indication information is not area valid information, the terminal needs to re-acquire the system information after switching cells.

[0098] Optionally, the terminal obtains system information sent by the base station, including:

[0099] The terminal acquires the system information based on periodic broadcast of the base station;

[0100] Alternatively, the terminal sends a first request message to the base station, where the first request message is used to request to obtain the system information; the terminal receives a first response message sent by the base station, where the first response message includes the system information.

[0101] Optionally, the terminal determines, according to the SL positioning indication, a SL positioning mode, including:

[0102] When the SL positioning indication information indicates that the network does not support SL positioning, determining that the SL positioning mode is a first SL positioning mode, where the first SL positioning mode is a positioning mode in which only the terminal participates;

[0103] When the SL positioning indication information indicates that the network supports SL positioning, the SL positioning mode is determined to be a second SL positioning mode, and the second SL positioning mode is a network-based positioning mode.

[0104] The information transmission method of the present application is described in detail below in conjunction with embodiments.

[0105] Embodiment 1: The current regional network does not support SL positioning, and the target UE and the anchor UE in the network perform a UE-only operation positioning method. Figure 3 As shown, the process includes:

[0106] Step 1: The target UE receives a SL positioning service request, which may come from the network, an internal application of the target UE, or a third-party UE.

[0107] Step 2: The target UE obtains the system information (SIB or posSIB) sent by the base station.

[0108] Step 3: The target UE reads the SIB or posSIB and finds that its serving PLMN does not support SL positioning, thereby determining to adopt UE-only operation.

[0109] Step 4: The target UE initiates a discovery process to discover the surrounding anchor UEs. If the target UE cannot serve as a server UE, it needs to discover the server UE.

[0110] Step 5: The target UE selects the anchor UE(s) for SL positioning based on the anchor UE selection criteria. If the target UE cannot be a server UE, the target UE selects the server UE for SL positioning based on the server UE selection criteria.

[0111] Step 6: The target UE, anchor UEs and server UE perform a UE-only SL positioning process and calculate the position of the target UE.

[0112] Step 7: The target UE sends the location information to the node that requested the SL positioning service in step 1.

[0113] Embodiment 2: The current regional network supports SL positioning, and the target UE and anchor UE in the network perform a network-based positioning method, such as Figure 4 As shown, the process includes:

[0114] Step 1: The target UE receives a SL positioning service request, which may come from the network, an internal application of the target UE, or a third-party UE.

[0115] Step 2: The target UE obtains the system information (SIB or posSIB) sent by the base station.

[0116] Step 3: The target UE reads the SIB or posSIB that its serving PLMN supports SL positioning, thereby determining to adopt Network-based operation.

[0117] Step 4: The target UE initiates the discovery process to discover the surrounding candidate anchor UEs. If the anchor UE chooses to be executed by the LMF, the target UE sends the candidate anchor UEs information (such as the positioning methods supported by each candidate anchor UE, location information, whether it is in the network, the PLMN it serves, whether it is mobile, whether the location is fixed, the measured side link discovery reference signal receiving power (Side Link Discovery Reference Signal Receiving Power, SD-RSRP), line of sight (Line of Sight, LOS) / non-line of sight (Not Line of Sight, NLOS), etc.) to the LMF.

[0118] Step 5: The target UE or LMF selects the anchor UE(s) for SL positioning based on the anchor UE selection criteria.

[0119] Step 6: Network-based SL positioning process is performed between target UE, anchor UEs and LMF, and the position of target UE is calculated.

[0120] Step 7: The target UE sends the location information to the node that requested the SL positioning service in step 1.

[0121] Embodiment 3: The process of whether the network supports SL positioning is interactive between the base station and the access and mobility management function (Access and Mobility Management Function, AMF), such as Figure 5 As shown, including:

[0122] Step 1: gNB sends a SL positioning support request (i.e., a second request message) to AMF, which may include the specific PLMNs requested to support SL positioning.

[0123] Step 2: AMF responds to the request in step 1 and sends to the gNB whether the PLMN requested in step 1 supports SL positioning.

[0124] Optionally, whether the PLMN requested in step 1 supports SL positioning is sent to the gNB through a second response message. Specifically, the SL positioning support information (i.e., SL positioning indication information) is sent to the gNB.

[0125] The AMF may also send step 2 directly to the gNB without basing it on step 1, and send the PLMN corresponding to whether SL positioning is supported to the gNB.

[0126] Through the above solution, the terminal can know whether the network supports SL positioning without dedicated signaling interaction, and then determine the SL positioning method to be adopted, avoiding the signaling overhead and delay caused by the terminal and the network having to use dedicated signaling to know whether the network supports SL positioning.

[0127] like Figure 6 As shown, the embodiment of the present application also provides an information transmission method, including:

[0128] Step 601: The base station sends system information, where the system information includes direct link SL positioning indication information, where the SL positioning indication information is used to indicate whether the network supports SL positioning.

[0129] Optionally, the SL positioning indication information is used to indicate whether the 5G core network supports SL positioning, or to indicate whether the location management function (LMF) supports SL positioning, or to indicate whether the current regional network supports SL positioning.

[0130] In an embodiment of the present application, the base station sends system information, which includes direct link SL positioning indication information. The SL positioning indication information is used to indicate whether the network supports SL positioning, so that the terminal can know whether the network supports SL positioning without dedicated signaling interaction, and then determine the SL positioning method to be adopted, avoiding the signaling overhead and delay caused by the terminal and the network having to use dedicated signaling to know whether the network supports SL positioning.

[0131] Optionally, the method further comprises:

[0132] The base station obtains the SL positioning indication information from a target device, where the target device includes an access and mobility management function AMF and / or a positioning management function LMF.

[0133] Optionally, the base station obtains the SL positioning indication information from the target device, including:

[0134] The base station sends a second request message to the target device, where the second request message is used to request to obtain the SL positioning indication information;

[0135] The base station receives a second response message sent by the target device, where the second response message includes the SL positioning indication information.

[0136] Optionally, the base station obtains the SL positioning indication information from the target device, including:

[0137] When the base station establishes a connection with the target device, the base station obtains the SL positioning indication information from the target device;

[0138] Alternatively, when the SL positioning supported by the network changes, the base station obtains the SL positioning indication information from the target device.

[0139] According to the above description, in an embodiment of the present application, the base station can send a request to the target device, and the target device responds to the base station whether the network supports SL positioning, or the target device actively sends information to the base station whether the network supports SL positioning when initially establishing a connection with the base station and / or when the network's support for the SL positioning function changes.

[0140] In an embodiment of the present application, the base station sends system information, which includes direct link SL positioning indication information. The SL positioning indication information is used to indicate whether the network supports SL positioning, so that the terminal can know whether the network supports SL positioning without interacting through dedicated signaling, avoiding the signaling overhead and delay caused by the terminal and the network having to use dedicated signaling to know whether the network supports SL positioning.

[0141] like Figure 7 As shown, an embodiment of the present application provides an information transmission device, which is applied to a terminal, including a memory 720, a transceiver 700, and a processor 710;

[0142] The memory 720 is used to store computer programs; the transceiver 700 is used to send and receive data under the control of the processor 710; the processor 710 is used to read the computer program in the memory 720 and perform the following operations:

[0143] Obtain system information sent by the base station, where the system information includes direct link SL positioning indication information, and the SL positioning indication information is used to indicate whether the network supports SL positioning.

[0144] Among them, Figure 7In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 710 and various circuits of memory represented by memory 720 are linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 700 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, including wireless channels, wired channels, optical cables, and other transmission media. For different user devices, the user interface 730 may also be an interface capable of externally and internally connecting required devices, and the connected devices include but are not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0145] The processor 710 is responsible for managing the bus architecture and general processing, and the memory 720 can store data used by the processor 710 when performing operations.

[0146] Optionally, the processor 710 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array) or a CPLD (Complex Programmable Logic Device), and the processor may also adopt a multi-core architecture.

[0147] The processor calls the computer program stored in the memory to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions. The processor and the memory can also be arranged physically separately.

[0148] Optionally, the processor further implements the following steps:

[0149] The SL positioning mode is determined according to the SL positioning indication information.

[0150] Optionally, the system information includes a system information block or a positioning system information block.

[0151] Optionally, the SL positioning indication information is determined based on a public land mobile network PLMN, or the SL positioning indication information is not determined based on a PLMN.

[0152] Optionally, the processor further implements the following steps:

[0153] The valid area of ​​the system information is determined according to the area range indication field in the system information, and the area range indication field is used to indicate whether the SL positioning indication information is area valid information.

[0154] Optionally, the processor further implements the following steps:

[0155] In a case where the area range indication field indicates that the SL positioning indication information is area valid information, determining an area corresponding to the system information area identifier in the system information as a valid area of ​​the SL positioning indication information;

[0156] When the area range indication field indicates that the SL positioning indication information is not area valid information, it is determined that the cell corresponding to the terminal is the valid area of ​​the SL positioning indication information.

[0157] Optionally, the processor further implements the following steps:

[0158] Acquiring the system information based on periodic broadcast of a base station;

[0159] Alternatively, a first request message is sent to a base station, where the first request message is used to request acquisition of system information; and a first response message is received from the base station, where the first response message includes the system information.

[0160] Optionally, the processor further implements the following steps:

[0161] When the SL positioning indication information indicates that the network does not support SL positioning, determining that the SL positioning mode is a first SL positioning mode, where the first SL positioning mode is a positioning mode in which only the terminal participates;

[0162] When the SL positioning indication information indicates that the network supports SL positioning, the SL positioning mode is determined to be a second SL positioning mode, and the second SL positioning mode is a network-based positioning mode.

[0163] It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned information transmission method embodiment applied to the terminal, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0164] like Figure 8 As shown, the embodiment of the present application further provides an information transmission device, which is applied to a base station. The device includes a memory 820, a transceiver 800, and a processor 810;

[0165] The memory 820 is used to store computer programs; the transceiver 800 is used to send and receive data under the control of the processor; the processor 810 is used to read the computer program in the memory and perform the following operations:

[0166] Send system information, where the system information includes direct link SL positioning indication information, where the SL positioning indication information is used to indicate whether the network supports SL positioning.

[0167] Among them, Figure 8 In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 810 and memory represented by memory 820. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface. The transceiver 800 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, which transmission medium may include a wireless channel, a wired channel, an optical cable, and the like. The processor 810 is responsible for managing the bus architecture and general processing, and the memory 820 may store data used by the processor 810 when performing operations.

[0168] The processor 810 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.

[0169] Optionally, the processor further implements the following steps:

[0170] The SL positioning indication information is obtained from a target device, where the target device includes an access and mobility management function AMF and / or a positioning management function LMF.

[0171] Optionally, the processor further implements the following steps:

[0172] Sending a second request message to the target device, where the second request message is used to request to obtain the SL positioning indication information;

[0173] Receive a second response message sent by the target device, where the second response message includes the SL positioning indication information.

[0174] Optionally, the processor further implements the following steps:

[0175] When the base station establishes a connection with the target device, obtaining the SL positioning indication information from the target device;

[0176] Alternatively, when the SL positioning supported by the network changes, the SL positioning indication information is obtained from the target device.

[0177] It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned information transmission method embodiment applied to the base station, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0178] like Fig. 9 As shown, the embodiment of the present application also provides an information transmission device, which is applied to a terminal, and the device includes:

[0179] The first acquisition unit 901 is used to acquire system information sent by a base station, where the system information includes direct link SL positioning indication information, and the SL positioning indication information is used to indicate whether the network supports SL positioning.

[0180] Optionally, the device of the embodiment of the present application further includes:

[0181] The first determining unit is used to determine the SL positioning mode according to the SL positioning indication information.

[0182] Optionally, the system information includes a system information block or a positioning system information block.

[0183] Optionally, the SL positioning indication information is determined based on a public land mobile network PLMN, or the SL positioning indication information is not determined based on a PLMN.

[0184] Optionally, the device of the embodiment of the present application further includes:

[0185] The second determination unit is used to determine the valid area of ​​the system information according to the area range indication field in the system information, and the area range indication field is used to indicate whether the SL positioning indication information is area valid information.

[0186] Optionally, the second determining unit includes:

[0187] A first determining subunit is configured to determine, when the area range indication field indicates that the SL positioning indication information is area valid information, an area corresponding to the system information area identifier in the system information as a valid area of ​​the SL positioning indication information;

[0188] The second determination subunit is used to determine that the cell corresponding to the terminal is a valid area of ​​the SL positioning indication information when the area range indication field indicates that the SL positioning indication information is not area valid information.

[0189] Optionally, the first acquiring unit is used to acquire the system information based on periodic broadcast of a base station;

[0190] Alternatively, it is used to send a first request message to a base station, where the first request message is used to request to obtain system information; and receive a first response message sent by the base station, where the first response message includes the system information.

[0191] Optionally, the first determining unit is used to:

[0192] When the SL positioning indication information indicates that the network does not support SL positioning, determining that the SL positioning mode is a first SL positioning mode, where the first SL positioning mode is a positioning mode in which only the terminal participates;

[0193] When the SL positioning indication information indicates that the network supports SL positioning, the SL positioning mode is determined to be a second SL positioning mode, and the second SL positioning mode is a network-based positioning mode.

[0194] It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned information transmission method embodiment applied to the terminal, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0195] like Fig.10 As shown, the embodiment of the present application also provides an information transmission device, which is applied to a base station, and the device includes:

[0196] The first sending unit 1001 is used to send system information, where the system information includes direct link SL positioning indication information, and the SL positioning indication information is used to indicate whether the network supports SL positioning.

[0197] Optionally, the device of the embodiment of the present application further includes:

[0198] The second acquisition unit is used to acquire the SL positioning indication information from the target device, and the target device includes an access and mobility management function AMF and / or a positioning management function LMF.

[0199] Optionally, the second acquiring unit includes:

[0200] A sending subunit, configured to send a second request message to a target device, where the second request message is used to request to obtain the SL positioning indication information;

[0201] A receiving subunit is used to receive a second response message sent by the target device, where the second response message includes the SL positioning indication information.

[0202] Optionally, the second acquiring unit is used to:

[0203] When the base station establishes a connection with the target device, the base station obtains the SL positioning indication information from the target device;

[0204] Alternatively, when the SL positioning supported by the network changes, the base station obtains the SL positioning indication information from the target device.

[0205] It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned information transmission method embodiment applied to the base station, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0206] It should be noted that the division of units in the embodiments of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation. In addition, each functional unit in each embodiment of the present application may be integrated into a processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0207] 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 processor-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 to enable a computer device (which can be a personal computer, server, or network device, etc.) or a processor (processor) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), disk or optical disk and other media that can store program codes.

[0208] In some embodiments of the present application, a processor-readable storage medium is also provided, which stores program instructions, and the program instructions are used to enable the processor to execute all the steps implemented by the method embodiment executed by the above-mentioned terminal or all the steps implemented by the method embodiment executed by the base station, and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as the method embodiment will not be described in detail here.

[0209] The terminal device involved in the embodiment of the present application may be a device that provides voice and / or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem. In different systems, the name of the terminal device may also be different. For example, in a 5G system, the terminal device may be called a user equipment (UE). A wireless terminal device can communicate with one or more core networks (CN) via a radio access network (RAN). The wireless terminal device may be a mobile terminal device, such as a mobile phone (or a "cellular" phone) and a computer with a mobile terminal device. For example, it may be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device that exchanges language and / or data with a wireless access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs) and other devices. The wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, a user agent, and a user device, but is not limited in the embodiments of the present application.

[0210] The network device (or network side device) involved in the embodiment of the present application may be a base station, which may include multiple cells providing services for the terminal. Depending on the specific application scenario, the base station may also be called an access point, or may be a device in the access network that communicates with the wireless terminal device through one or more sectors on the air interface, or other names. The network device may be used to interchange received air frames with Internet Protocol (IP) packets, and serve as a router between the wireless terminal device and the rest of the access network, wherein the rest of the access network may include an Internet Protocol (IP) communication network. The network device may also coordinate the attribute management of the air interface. For example, the network device involved in the embodiments of the present application may be a network device (Base TransceiverStation, BTS) in the Global System for Mobile communications (Global System for Mobile communications, GSM) or Code Division Multiple Access (Code Division Multiple Access, CDMA), or a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or an evolutionary network device (evolutional Node B, eNB or e-NodeB) in the Long Term Evolution (Long Term Evolution, LTE) system, a 5G base station (gNB) in the 5G network architecture (next generation system), or a home evolved Node B (Home evolved Node B, HeNB), a relay node, a home base station (femto), a pico base station (pico), etc., which is not limited in the embodiments of the present application. In some network structures, the network device may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be arranged geographically separately.

[0211] Network devices and terminal devices can each use one or more antennas for multiple-input multiple-output (MIMO) transmission. MIMO transmission can be single-user MIMO (SU-MIMO) or multi-user MIMO (MU-MIMO). Depending on the form and number of antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO or massive-MIMO, or it can be diversity transmission, precoded transmission or beamforming transmission, etc.

[0212] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) that contain computer-usable program code.

[0213] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer executable instructions. These computer executable instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0214] These processor executable instructions may also be stored in a processor readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the processor readable memory produce an article of manufacture including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0215] These processor-executable instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable device to implement the process. Figure 1A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0216] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. An information transmission method, characterized in that: include: The terminal obtains system information sent by the base station, where the system information includes direct link SL positioning indication information, and the SL positioning indication information is used to indicate whether the network supports SL positioning.

2. The method according to claim 1, characterized in that Also includes: The terminal determines the SL positioning mode according to the SL positioning indication information.

3. The method according to claim 1, characterized in that The system information includes a system information block or a positioning system information block.

4. The method according to claim 1, characterized in that The SL positioning indication information is determined based on a public land mobile network PLMN, or the SL positioning indication information is not determined based on a PLMN.

5. The method according to claim 1, characterized in that Also includes: The terminal determines the valid area of ​​the system information according to the area range indication field in the system information, and the area range indication field is used to indicate whether the SL positioning indication information is area valid information.

6. The method according to claim 5, characterized in that The terminal determines, according to the area range indication field in the system information, a valid area of ​​the system information, including: In a case where the area range indication field indicates that the SL positioning indication information is area valid information, determining an area corresponding to the system information area identifier in the system information as a valid area of ​​the SL positioning indication information; When the area range indication field indicates that the SL positioning indication information is not area valid information, it is determined that the cell corresponding to the terminal is the valid area of ​​the SL positioning indication information.

7. The method according to claim 1, characterized in that The terminal obtains system information sent by the base station, including: The terminal acquires the system information based on periodic broadcast of the base station; Alternatively, the terminal sends a first request message to the base station, where the first request message is used to request to obtain the system information; the terminal receives a first response message sent by the base station, where the first response message includes the system information.

8. The method according to claim 1, characterized in that The terminal determines, according to the SL positioning indication, a SL positioning mode, including: When the SL positioning indication information indicates that the network does not support SL positioning, determining that the SL positioning mode is a first SL positioning mode, where the first SL positioning mode is a positioning mode in which only the terminal participates; When the SL positioning indication information indicates that the network supports SL positioning, the SL positioning mode is determined to be a second SL positioning mode, and the second SL positioning mode is a network-based positioning mode.

9. An information transmission method, characterized in that: include: The base station sends system information, where the system information includes direct link SL positioning indication information, where the SL positioning indication information is used to indicate whether the network supports SL positioning.

10. The method according to claim 9, characterized in that The method further comprises: The base station obtains the SL positioning indication information from a target device, where the target device includes an access and mobility management function AMF and / or a positioning management function LMF.

11. The method according to claim 10, characterized in that The base station obtains the SL positioning indication information from the target device, including: The base station sends a second request message to the target device, where the second request message is used to request to obtain the SL positioning indication information; The base station receives a second response message sent by the target device, where the second response message includes the SL positioning indication information.

12. The method according to claim 10, characterized in that The base station obtains the SL positioning indication information from the target device, including: When the base station establishes a connection with the target device, the base station obtains the SL positioning indication information from the target device; Alternatively, when the SL positioning supported by the network changes, the base station obtains the SL positioning indication information from the target device.

13. An information transmission device, characterized in that: Including memory, transceiver, processor; A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: Obtain system information sent by the base station, where the system information includes direct link SL positioning indication information, and the SL positioning indication information is used to indicate whether the network supports SL positioning.

14. The device according to claim 13, characterized in that The processor also implements the following steps: The SL positioning mode is determined according to the SL positioning indication information.

15. The device according to claim 13, characterized in that The system information includes a system information block or a positioning system information block.

16. The device according to claim 13, characterized in that The SL positioning indication information is determined based on a public land mobile network PLMN, or the SL positioning indication information is not determined based on a PLMN.

17. The device according to claim 13, characterized in that The processor also implements the following steps: The valid area of ​​the system information is determined according to the area range indication field in the system information, and the area range indication field is used to indicate whether the SL positioning indication information is area valid information.

18. The device according to claim 17, characterized in that The processor also implements the following steps: In a case where the area range indication field indicates that the SL positioning indication information is area valid information, determining an area corresponding to the system information area identifier in the system information as a valid area of ​​the SL positioning indication information; When the area range indication field indicates that the SL positioning indication information is not area valid information, it is determined that the cell corresponding to the terminal is the valid area of ​​the SL positioning indication information.

19. The device according to claim 13, characterized in that The processor also implements the following steps: Acquiring the system information based on periodic broadcast of a base station; Alternatively, a first request message is sent to a base station, where the first request message is used to request acquisition of system information; and a first response message is received from the base station, where the first response message includes the system information.

20. The device according to claim 13, characterized in that The processor also implements the following steps: When the SL positioning indication information indicates that the network does not support SL positioning, determining that the SL positioning mode is a first SL positioning mode, where the first SL positioning mode is a positioning mode in which only the terminal participates; When the SL positioning indication information indicates that the network supports SL positioning, the SL positioning mode is determined to be a second SL positioning mode, and the second SL positioning mode is a network-based positioning mode.

21. An information transmission device, characterized in that: Including memory, transceiver, processor; A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: Send system information, where the system information includes direct link SL positioning indication information, where the SL positioning indication information is used to indicate whether the network supports SL positioning.

22. The device according to claim 21, characterized in that The processor also implements the following steps: The SL positioning indication information is obtained from a target device, where the target device includes an access and mobility management function AMF and / or a positioning management function LMF.

23. The device according to claim 22, characterized in that The processor also implements the following steps: Sending a second request message to the target device, where the second request message is used to request to obtain the SL positioning indication information; Receive a second response message sent by the target device, where the second response message includes the SL positioning indication information.

24. The device according to claim 22, characterized in that The processor also implements the following steps: When a connection is established between the base station and the target device, obtaining the SL positioning indication information from the target device; Alternatively, when the SL positioning supported by the network changes, the SL positioning indication information is obtained from the target device.

25. An information transmission device, characterized in that: include: The first acquisition unit is used to acquire system information sent by a base station, where the system information includes direct link SL positioning indication information, and the SL positioning indication information is used to indicate whether the network supports SL positioning.

26. An information transmission device, characterized in that: include: The first sending unit is used to send system information, where the system information includes direct link SL positioning indication information, and the SL positioning indication information is used to indicate whether the network supports SL positioning.

27. A processor-readable storage medium, characterized in that: The processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the steps of the information transmission method according to any one of claims 1 to 8, or to execute the steps of the information transmission method according to any one of claims 9 to 12.

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