CN116848860A

CN116848860A - Method, device and storage medium for transmitting positioning auxiliary information

Info

Publication number: CN116848860A
Application number: CN202380009377.0A
Authority: CN
Inventors: 杨星
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2023-05-11
Filing date: 2023-05-11
Publication date: 2023-10-03

Abstract

The present disclosure provides a method, an apparatus, and a storage medium for transmitting positioning assistance information. The method comprises the following steps: receiving first information sent by access network equipment, wherein the first information comprises positioning auxiliary information; transmitting second information to a second terminal, wherein the second information comprises positioning auxiliary information and third information, and the third information is used for indicating the time when the first terminal receives the positioning auxiliary information; wherein the second terminal and the first terminal are based on side-link SL communication, and the second terminal is connected with the access network device through the first terminal. In the method, when the first terminal sends the positioning auxiliary information to the second terminal, the first terminal synchronously sends the time for receiving the positioning auxiliary information, so that time reference of the positioning auxiliary information can be provided for the second terminal, and the positioning auxiliary information can be conveniently applied or not applied in a reasonable time range, so that the accuracy in the positioning process is ensured.

Description

Method, device and storage medium for transmitting positioning auxiliary information

Technical Field

The present disclosure relates to the field of wireless communications technologies, and in particular, to a method, an apparatus, and a storage medium for transmitting positioning assistance information.

Background

In order to support direct communication between User Equipment (UE) and UE, a side-link or direct link (SL) communication mode is introduced, and a communication interface between UE and UE is a PC5 port. The user equipment may be directly connected with the base station or may communicate with the base station through another user equipment acting as a relay node.

Disclosure of Invention

The present disclosure provides a method, an apparatus, and a storage medium for transmitting positioning assistance information.

In a first aspect, the present disclosure provides a method of transmitting positioning assistance information, performed by a user equipment, the method comprising:

receiving first information sent by access network equipment, wherein the first information comprises positioning auxiliary information;

transmitting second information to a second terminal, wherein the second information comprises positioning auxiliary information and third information, and the third information is used for indicating the time when the first terminal receives the positioning auxiliary information;

wherein the second terminal and the first terminal are based on side-link SL communication, and the second terminal is connected with the access network device through the first terminal.

In a second aspect, the present disclosure provides a method of receiving positioning assistance information, performed by a second terminal, the method comprising:

Receiving second information sent by a first terminal, wherein the second information comprises positioning auxiliary information and third information, and the third information is used for indicating the time when the positioning auxiliary information is received by the first terminal;

determining a third time for positioning according to the third information;

In a third aspect, the present disclosure provides a method for transmitting positioning assistance information, performed by an access network device, the method comprising:

receiving first information sent by a first network element, wherein the first information comprises positioning auxiliary information;

transmitting the first information to a first terminal;

the first information is used for sending second information to a second terminal by the first terminal, the second information comprises positioning auxiliary information and third information, and the third information is used for indicating the time when the positioning auxiliary information is received by the first terminal; the third information is also used for the second terminal to determine a third time for positioning.

In a fourth aspect, the present disclosure provides a method for transmitting positioning assistance information, performed by a first network element, the method comprising:

Transmitting first information to access network equipment, wherein the first information comprises positioning auxiliary information;

the first information is used for the first terminal to send second information to the second terminal, the second information comprises positioning auxiliary information and third information, and the third information is used for indicating the time when the first terminal receives the positioning auxiliary information; the third information is also used for the second terminal to determine a third time for positioning.

In a fifth aspect, the present disclosure provides a method of transmitting positioning assistance information for a communication system, the method comprising:

the access network equipment sends first information to a first terminal, wherein the first information comprises positioning auxiliary information;

after receiving the first information, the first terminal sends second information to a second terminal, wherein the second information comprises positioning auxiliary information and third information, and the third information is used for indicating the time when the first terminal receives the positioning auxiliary information;

and the second terminal determines a third time for positioning according to the third information.

In a sixth aspect, the present disclosure provides a first communication apparatus, the apparatus comprising:

the receiving and transmitting module is used for receiving first information sent by the access network equipment, wherein the first information comprises positioning auxiliary information;

The transceiver module is further configured to send second information to a second terminal, where the second information includes positioning auxiliary information and third information, and the third information is used to indicate a time when the first terminal receives the positioning auxiliary information;

In a seventh aspect, the present disclosure provides a second communication apparatus, the apparatus comprising:

the receiving and transmitting module is used for receiving second information sent by the first terminal, wherein the second information comprises positioning auxiliary information and third information, and the third information is used for indicating the time when the first terminal receives the positioning auxiliary information;

a processing module for determining a third time for positioning according to the third information;

In an eighth aspect, the present disclosure provides a third communication device, the device comprising:

the receiving and transmitting module is used for receiving first information sent by a first network element, wherein the first information comprises positioning auxiliary information;

The receiving and transmitting module is further used for sending the first information to a first terminal;

In a ninth aspect, the present disclosure provides a fourth communication apparatus, the apparatus comprising:

the receiving and transmitting module is used for sending first information to the access network equipment, wherein the first information comprises positioning auxiliary information;

In a tenth aspect, the present disclosure provides a communication device comprising:

one or more processors;

wherein the processor is configured to invoke instructions to cause the communication device to perform the method of the first aspect or to perform the method of the second aspect.

In an eleventh aspect, the present disclosure provides a communication system, where a first terminal, a second terminal, an access network device, and a core network device; wherein,,

the first terminal is configured to perform the method of the first aspect;

the second terminal is configured to perform the method of the second aspect;

the access network device is configured to perform the method of the third aspect;

the core network device is configured to perform the method of the fourth aspect.

In a twelfth aspect, the present disclosure provides a storage medium storing instructions that,

the instructions, when executed on a communication device, cause the communication device to perform the method as described in the first aspect, or to perform the method as described in the second aspect.

Drawings

The accompanying drawings, which are included to provide a further understanding of embodiments of the disclosure, illustrate and explain the exemplary embodiments of the disclosure and together with the description serve to explain the disclosure, and do not constitute an undue limitation on the embodiments of the disclosure. In the drawings:

the accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the embodiments of the disclosure.

Fig. 1 is a schematic diagram of a wireless communication system architecture according to an embodiment of the present disclosure;

fig. 2 is an interactive schematic diagram of a method for transmitting positioning assistance information according to an embodiment of the present disclosure;

FIG. 3 is a flow chart of a method of transmitting positioning assistance information provided by an embodiment of the present disclosure;

FIG. 4 is a flow chart of a method of receiving positioning assistance information provided by an embodiment of the present disclosure;

fig. 5 is a flowchart of a method for transmitting positioning assistance information provided by an embodiment of the present disclosure;

FIG. 6 is a flow chart of a method of transmitting positioning assistance information provided by an embodiment of the present disclosure;

fig. 7a is a schematic diagram of a first communication device shown in accordance with an embodiment of the present disclosure;

fig. 7b is a schematic diagram of a second communication device shown in accordance with an embodiment of the present disclosure;

FIG. 7c is a schematic diagram of a third communication device shown according to an embodiment of the present disclosure;

FIG. 7d is a schematic diagram of a fourth communication device shown in accordance with an embodiment of the present disclosure;

fig. 8a is a schematic diagram of a communication device shown in accordance with an embodiment of the present disclosure;

fig. 8b is a schematic diagram of a communication device shown in accordance with an embodiment of the present disclosure.

Detailed Description

The embodiment of the disclosure provides a method, a device and a storage medium for transmitting positioning auxiliary information. In some embodiments, terms such as a communication method and an information processing method, a communication processing method, and the like may be replaced with each other, terms such as a communication apparatus and an information processing apparatus, a communication processing apparatus, and the like may be replaced with each other, and terms such as an information processing system, a communication system, and the like may be replaced with each other.

The embodiments of the present disclosure are not intended to be exhaustive, but rather are exemplary of some embodiments and are not intended to limit the scope of the disclosure. In the case of no contradiction, each step in a certain embodiment may be implemented as an independent embodiment, and the steps may be arbitrarily combined, for example, a scheme in which part of the steps are removed in a certain embodiment may also be implemented as an independent embodiment, the order of the steps in a certain embodiment may be arbitrarily exchanged, and further, alternative implementations in a certain embodiment may be arbitrarily combined; furthermore, various embodiments may be arbitrarily combined, for example, some or all steps of different embodiments may be arbitrarily combined, and an embodiment may be arbitrarily combined with alternative implementations of other embodiments.

In the various embodiments of the disclosure, terms and/or descriptions of the various embodiments are consistent throughout the various embodiments and may be referenced to each other in the absence of any particular explanation or logic conflict, and features from different embodiments may be combined to form new embodiments in accordance with their inherent logic relationships.

The terminology used in the embodiments of the disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure.

In the presently disclosed embodiments, elements that are referred to in the singular, such as "a," "an," "the," "said," etc., may mean "one and only one," or "one or more," "at least one," etc., unless otherwise indicated. For example, where an article (article) is used in translation, such as "a," "an," "the," etc., in english, a noun following the article may be understood as a singular expression or as a plural expression.

In the presently disclosed embodiments, "plurality" refers to two or more.

In some embodiments, terms such as "at least one of", "one or more of", "multiple of" and the like may be substituted for each other.

Description modes such as at least one of A, B, C … …, A and/or B and/or C … … include any single case of A, B, C … … and any combination case of any plurality of A, B, C … …, and each case may exist independently; for example, "at least one of A, B, C" includes the cases of a alone, B alone, C, A and B in combination, a and C in combination, B and C in combination, a and B and C in combination; for example, a and/or B includes the case of a alone, a combination of a alone B, A and B.

In some embodiments, "in a case a, in another case B", "in response to a case a", "in response to another case B", and the like, the following technical solutions may be included according to the circumstances: executing a independently of B, i.e., a in some embodiments; b is performed independently of a, i.e., in some embodiments B; a and B are selectively performed, i.e., in some embodiments selected from a and B; both a and B are performed, i.e., a and B in some embodiments. Similar to that described above when there are more branches such as A, B, C.

The prefix words "first", "second", etc. in the embodiments of the present disclosure are only for distinguishing different description objects, and do not limit the location, order, priority, number, content, etc. of the description objects, and the statement of the description object refers to the claims or the description of the embodiment context, and should not constitute unnecessary limitations due to the use of the prefix words. For example, if the description object is a "field", the ordinal words before the "field" in the "first field" and the "second field" do not limit the position or the order between the "fields", and the "first" and the "second" do not limit whether the "fields" modified by the "first" and the "second" are in the same message or not. For another example, describing an object as "level", ordinal words preceding "level" in "first level" and "second level" do not limit priority between "levels". As another example, the number of descriptive objects is not limited by ordinal words, and may be one or more, taking "first device" as an example, where the number of "devices" may be one or more. Furthermore, objects modified by different prefix words may be the same or different, e.g., the description object is "a device", then "a first device" and "a second device" may be the same device or different devices, and the types may be the same or different; for another example, the description object is "information", and the "first information" and the "second information" may be the same information or different information, and the contents thereof may be the same or different.

In some embodiments, "comprising a", "containing a", "for indicating a", "carrying a", may be interpreted as carrying a directly, or as indicating a indirectly.

In some embodiments, terms "responsive to … …", "responsive to determination … …", "in the case of … …", "at … …", "when … …", "if … …", "if … …", and the like may be interchanged.

In some embodiments, terms "greater than", "greater than or equal to", "not less than", "more than or equal to", "not less than", "above" and the like may be interchanged, and terms "less than", "less than or equal to", "not greater than", "less than or equal to", "not more than", "below", "lower than or equal to", "no higher than", "below" and the like may be interchanged.

In some embodiments, an apparatus or the like may be interpreted as an entity, or may be interpreted as a virtual, and the names thereof are not limited to the names described in the embodiments, "apparatus," "device," "circuit," "network element," "node," "function," "unit," "section," "system," "network," "chip system," "entity," "body," and the like may be replaced with each other.

In some embodiments, "access network device (access network device, AN device)", "radio access network device (radio access network device, RAN device)", "Base Station (BS)", "radio base station (radio base station)", "fixed station (fixed station)", "node (node)", "access point (access point)", "transmit point (transmission point, TP)", "Receive Point (RP)", "transmit receive point (transmit/receive point), the terms TRP), panel, antenna array, cell, macrocell, microcell, femtocell, sector, cell group, carrier, component carrier, bandwidth part, BWP, etc. may be replaced with each other.

In some embodiments, "terminal," terminal device, "" user equipment, "" user terminal, "" mobile station, "" mobile terminal, MT) ", subscriber station (subscriber station), mobile unit (mobile unit), subscriber unit (subscriber unit), wireless unit (wireless unit), remote unit (remote unit), mobile device (mobile device), wireless device (wireless device), wireless communication device (wireless communication device), remote device (remote device), mobile subscriber station (mobile subscriber station), access terminal (access terminal), mobile terminal (mobile terminal), wireless terminal (wireless terminal), remote terminal (remote terminal), handheld device (handset), user agent (user agent), mobile client (mobile client), client (client), and the like may be substituted for each other.

In some embodiments, the access network device, core network device, or network device may be replaced with a terminal. For example, the embodiments of the present disclosure may be applied to a configuration in which communication between an access network device, a core network device, or a network device and a terminal is replaced with communication between a plurality of terminals (for example, may also be referred to as device-to-device (D2D), vehicle-to-device (V2X), or the like). In this case, the terminal may have all or part of the functions of the access network device. Further, the language such as "uplink" and "downlink" may be replaced with a language (for example, "side") corresponding to the communication between terminals. For example, uplink channels, downlink channels, etc. may be replaced with side-uplink channels, uplink, downlink, etc. may be replaced with side-downlink channels.

In some embodiments, the terminal may be replaced with an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device may have all or part of the functions of the terminal.

In some embodiments, "acquire," "obtain," "receive," "transmit," "send and/or receive" may be interchangeable, which may be construed as receiving from other principals, acquiring from protocols, processing itself, autonomous implementation, etc. in various meanings.

In some embodiments, terms such as "send," "transmit," "report," "send," "transmit," "send and/or receive," and the like may be used interchangeably.

In some embodiments, "predetermined", "preset" may be interpreted as being predefined in a protocol or the like, or as a preset action by a device or the like.

In some embodiments, determining (determining) may be interpreted as determining, deciding (determining), calculating (calculating), calculating (computing), processing (processing), deriving (determining), investigating (investigating), searching, looking up (locating), retrieving (searching), querying (query), confirming (confirming), receiving (receiving), transmitting (transmitting), inputting (input), outputting (output), accessing (processing), solving (determining), selecting (selecting), selecting (calculating), establishing (determining), comparing (determining), predicting (predicting), expecting (viewing), treating (consider), notifying (communicating), communicating (communicating), forwarding (configuring), reconfiguring (distributing (mapping), assigning (mapping), etc.

In some embodiments, the determination or judgment may be performed by a value (0 or 1) expressed in 1 bit, may be performed by a true-false value (boolean) expressed in true (true) or false (false), or may be performed by a comparison of values (e.g., a comparison with a predetermined value), but is not limited thereto.

In some embodiments, a "network" may be interpreted as an apparatus (e.g., access network device, core network device, etc.) contained in a network.

In some embodiments, "not expected to receive" may be interpreted as not receiving on time domain resources and/or frequency domain resources, or as not performing subsequent processing on data or the like after the data or the like is received; "not expected to transmit" may be interpreted as not transmitting, or may be interpreted as transmitting but not expecting the receiver to respond to the transmitted content.

In some embodiments, the acquisition of data, information, etc. may comply with laws and regulations of the country of locale.

In some embodiments, data, information, etc. may be obtained after user consent is obtained.

Furthermore, each element, each row, or each column in the tables of the embodiments of the present disclosure may be implemented as a separate embodiment, and any combination of elements, any rows, or any columns may also be implemented as a separate embodiment.

Fig. 1 is a schematic architecture diagram of a communication system shown in accordance with an embodiment of the present disclosure.

As shown in fig. 1, the communication system 100 includes a first terminal 101, a second terminal 102, an access network device 103, and a core network device 104.

In some embodiments, the first terminal 101 or the second terminal 102, for example, comprises: including, but not limited to, at least one of a mobile phone, a wearable device, an internet of things device, an automobile with communication function, a smart car, a tablet computer (Pad), a computer with wireless transceiving function, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in unmanned-driving (self-driving), a wireless terminal device in teleoperation (remote medical surgery), a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation safety (transportation safety), a wireless terminal device in smart city (smart city), a wireless terminal device in smart home (smart home).

In some embodiments, the access network device 103 is, for example, a node or a device that accesses a terminal to a wireless network, and the access network device may include at least one of an evolved NodeB (eNB), a next generation NodeB (next generationeNB, ng-eNB), a next generation NodeB (next generation NodeB, gNB), a NodeB (node B, NB), a Home NodeB (HNB), a home NodeB (home evolved nodeB, heNB), a wireless backhaul device, a radio network controller (radio network controller, RNC), a base station controller (base station controller, BSC), a base transceiver station (base transceiver station, BTS), a baseband unit (BBU), a mobile switching center, a base station in a 6G communication system, an Open base station (Open RAN), a Cloud base station (Cloud RAN), a base station in other communication systems, an access node in a Wi-Fi system, but is not limited thereto.

In some embodiments, the technical solutions of the present disclosure may be applied to an Open RAN architecture, where an access network device or an interface in an access network device according to the embodiments of the present disclosure may become an internal interface of the Open RAN, and flow and information interaction between these internal interfaces may be implemented by using software or a program.

In some embodiments, the access network device may be composed of a Central Unit (CU) and a Distributed Unit (DU), where the CU may also be referred to as a control unit (control unit), and the structure of the CU-DU may be used to split the protocol layers of the access network device, where functions of part of the protocol layers are centrally controlled by the CU, and functions of the rest of all the protocol layers are distributed in the DU, and the DU is centrally controlled by the CU, but is not limited thereto.

In some embodiments, the core network device 104 may be a device including a first network element 1041 or other network element, etc. The network element may be virtual or physical. The core network comprises, for example, at least one of an evolved packet core (Evolved Packet Core, EPC), a 5G core network (5G Core Network,5GCN), a next generation core (Next Generation Core, NGC).

In some embodiments, the first network element 1041 is, for example, a location management function (Location Management Function, LMF), or referred to as a location server.

It may be understood that, the communication system described in the embodiments of the present disclosure is for more clearly describing the technical solutions of the embodiments of the present disclosure, and is not limited to the technical solutions provided in the embodiments of the present disclosure, and those skilled in the art may know that, with the evolution of the system architecture and the appearance of new service scenarios, the technical solutions provided in the embodiments of the present disclosure are applicable to similar technical problems.

The embodiments of the present disclosure described below may be applied to the communication system 100 shown in fig. 1, or a part of the main body, but are not limited thereto. The respective bodies shown in fig. 1 are examples, and the communication system may include all or part of the bodies in fig. 1, or may include other bodies than fig. 1, and the number and form of the respective bodies are arbitrary, and the connection relationship between the respective bodies is examples, and the respective bodies may be not connected or may be connected, and the connection may be arbitrary, direct connection or indirect connection, or wired connection or wireless connection.

The embodiments of the present disclosure may be applied to long term evolution (Long Term Evolution, LTE), LTE-Advanced (LTE-a), LTE-Beyond (LTE-B), upper 3G, IMT-Advanced, fourth generation mobile communication system (4th generation mobile communication system,4G)), fifth generation mobile communication system (5th generation mobile communication system,5G), 5G New air (New Radio, NR), future wireless access (Future Radio Access, FRA), new wireless access technology (New-Radio Access Technology, RAT), new wireless (New Radio, NR), new wireless access (New Radio access, NX), future generation wireless access (Future generation Radio access, FX), global System for Mobile communications (GSM (registered trademark)), CDMA2000, ultra mobile broadband (Ultra Mobile Broadband, UMB), IEEE 802.11 (registered trademark), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, ultra WideBand (Ultra-wide bandwidth, UWB), bluetooth (Bluetooth) mobile communication network (Public Land Mobile Network, PLMN, device-D-Device, device-M, device-M, internet of things system, internet of things (internet of things), machine-2, device-M, device-M, internet of things (internet of things), system (internet of things), internet of things 2, device (internet of things), machine (internet of things), etc. In addition, a plurality of system combinations (e.g., LTE or a combination of LTE-a and 5G, etc.) may be applied.

In an embodiment of the present disclosure, in a positioning scenario, the first network element 1041 may send positioning assistance information to the terminal through the access network device 103, where the positioning assistance information may include global navigation satellite system (Global Navigation Satellite System, GNSS) reference time information (Reference time information).

The first network element 1041 may carry GNSS reference time information in positioning System information (Positioning System Information Block, posSIB), and the GNSS reference time information may be used to determine or indicate a GNSS System time (System time). For example, when the GNSS reference time information carries Network time (Network time), the GNSS system time indicates the GNSS system time corresponding to the Network time. When the GNSS reference time information does not carry the network time, the GNSS system time is the corresponding GNSS system time when the UE receives the GNSS reference time information.

In the positioning scenario, the terminal needs to determine its own position coordinates according to the GNSS system time.

In the embodiment of the disclosure, the PosSIB may further carry an expiration time (expiration time), where the expiration time is used to indicate an effective time of the positioning assistance information, and the expiration time is of a coordinated universal time (Coordinated Universal Time, UTC), that is, a universal time standard.

In the embodiment of the present disclosure, in order to assist the terminal to acquire GPS positioning, the access network device 103 may broadcast assistance information, which may indicate a reference time of UTC time type. The terminal is calibrated all the time based on the auxiliary information, thereby facilitating more accurate positioning. The auxiliary information can be sent through SIB9, and the terminal performs clock calibration according to the time when the SIB9 is received and the reference time. The reference time may be indicated in the auxiliary information as follows: the time of the system frame number (System Frame Number, SFN) of the ending boundary where the system information (System Information, SI) window of SIB9 is transmitted.

In the disclosed embodiment, the first terminal 101 and the second terminal 102 communicate based on SL. In SL communication, a terminal not directly connected to the access network device 103 may be referred to as a remote UE (remote user equipment), and a terminal as a relay node may be referred to as a relay UE (relay user equipment). Three transmission modes, unicast, multicast and broadcast, can be supported on SL.

In the embodiment of the present disclosure, the first terminal 101 is used as a relay UE, and the second terminal 102 is used as a remote UE.

In an example, the second terminal 102 communicates with the access network device 103 through the first terminal 101, e.g. the second terminal 102 in idle state may send a system information request message to the first terminal 101, where the system information request message carries the requested system information identifier. The system information request message is a SL radio resource control (Radio Resource Control, RRC) message, for example, remoteueinfo information sidelink. After receiving the system information request message, the first terminal 101 may acquire corresponding system information from the access network device 103 and transmit the system information to the second terminal 102. For example, the first terminal 101 sends a sidelink rrc message: the UuMessageTransferSidelink sends the system information to the second terminal 102.

In another example, the first terminal 101 may transmit an offset of the SFN from a direct frame number (Direct Frame Number, DFN) to the second terminal 102, and the second terminal 102 may determine the SFN from the DFN. Wherein the DFN is used to determine timing in SL communication.

In a positioning scenario, when the first terminal 101 receives the PosSIB, it may take a delay period to send the PosSIB to the second terminal 102. For example, the first terminal 101 needs to perform resource selection and/or needs to wait for an active time (active time) for which the second terminal 102 is in SL discontinuous reception (Discontinuous Reception, DRX), thereby causing delay.

When the second terminal 102 receives the PosSIB, since the GNSS reference time information carried by the PosSIB may have been delayed, if the second terminal 102 still considers the GNSS system time to be the time when the GNSS reference time information is received, the error of the GNSS system time determined by the second terminal 102 may be caused, thereby causing a problem of inaccurate positioning.

Fig. 2 is an interactive schematic diagram illustrating a method of transmitting positioning assistance information according to an embodiment of the present disclosure. As shown in fig. 2, an embodiment of the present disclosure relates to a method for transmitting positioning assistance information for a communication system 100, the method including:

In step S2101, the first network element 1041 sends first information to the access network device 103.

In some embodiments, the first network element 1041 is an LMF, which may also be referred to as a location server.

In some embodiments, the first information includes positioning assistance information, e.g., the first information is a PosSIB.

In some embodiments, the first network element 1041 may send a PosSIB for indicating or determining positioning assistance information, such as indicating GNSS reference time information, or GNSS system time, or UTC time, which may assist in positioning.

In an example, the GNSS reference time information may be used to determine or indicate a GNSS system time, e.g., when no network time is carried in the GNSS reference time information, the GNSS system time is the corresponding GNSS system time when the terminal received the GNSS reference time information. It can be appreciated that the terminal needs to use GNSS system time for operation in the positioning process.

In some embodiments, the access network device 103 receives the first information sent by the first network element 1041.

In step S2102, the access network device 103 transmits first information to the first terminal 101.

In some embodiments, after receiving the first information sent by the first network element 1041, the access network device 103 may directly forward the first information to the first terminal 101 without processing the first information.

In some embodiments, the first information sent by the access network device 103 to the first terminal 101 is identical or partially identical to the content of the first information received from the first network element 1041.

In some embodiments, the first terminal 101 receives the first information sent by the access network device 103.

In step S2103, the first terminal 101 transmits second information to the second terminal 102.

In some embodiments, the first terminal 101 is a relay UE and the second terminal 102 is a remote UE. The second terminal 102 is in communication with the first terminal 101 based on SL, and the second terminal 102 is connected to the access network device 103 through the first terminal 101.

In some embodiments, the second information includes the first information.

In some embodiments, the second information includes positioning assistance information and third information.

In some embodiments, the third information is used to indicate when the first terminal 101 receives positioning assistance information, e.g. when the first information comprising positioning assistance information is received.

In an example, the time at which the first information is received may be represented by an SFN or DFN.

In some embodiments, the third information includes at least one of:

SFN when the first terminal 101 receives positioning assistance information;

The DFN when the first terminal 101 receives the positioning assistance information.

Alternatively, the length of the bit (bit) for indicating the SFN is 10, i.e., the value of the SFN is indicated by 10 bits. The value range of the SFN is as follows: 0 to 1023, and total 1024 values.

Optionally, after each reaching 1023 SFN values, a flip (wrap around) occurs, i.e. counting is restarted from 0. So each time the SFN takes a value from 0 to 1023, it can be recorded as one SFN cycle. Where each system frame is 10 milliseconds (ms) in length, each SFN cycle requires 10 x 1024 = 10.24 seconds, i.e., every 10.24 seconds, the SFN will flip, entering the next cycle.

Alternatively, the DFN may be determined according to a current (current) UTC time and a predefined reference time.

In some embodiments, the second terminal 102 receives the second information sent by the first terminal 101.

In some embodiments, when the SFN value or the DFN value is recounted after the first terminal receives the positioning assistance information, the third information sent by the first terminal 101 is further used to indicate: the SFN or DFN at the time of receiving the positioning assistance information by the first terminal 101 is acquired before or after the value recounting.

For example, the third information is also used to indicate whether the SFN of the obtained positioning assistance information belongs to the current SFN cycle or the last SFN cycle. Or, the third information is further used to indicate whether the obtained DFN of the positioning assistance information belongs to a current DFN loop or a last DFN loop.

In step S2104, the first terminal 101 stores positioning assistance information.

In some embodiments, the first terminal 101 stores the positioning assistance information after receiving the positioning assistance information, e.g. after receiving the first information.

In some embodiments, the first terminal 101 may store separately after each time of receiving the positioning assistance information, and record the time of receiving each positioning assistance information.

In step S2105, the first terminal 101 releases the positioning assistance information.

In some embodiments, the first terminal 101 releases the positioning assistance information when the positioning assistance information satisfies the corresponding failure condition.

In some embodiments, the failure condition includes at least one of:

the UTC time after receiving the positioning assistance information reaches the first time of the positioning assistance information;

the time after the first terminal receives the positioning auxiliary information reaches a second time, and the second time is separated from the time for receiving the auxiliary information by a first duration;

After the first terminal receives the positioning auxiliary information, the SFN value or the DFN value is recounted.

In an example, the UTC time after receiving the positioning assistance information may be understood as the current UTC time.

Alternatively, the first time may be a value configured by the access network device 103 as the failure time. For example, before step S2105, the method may include step S2100:

in step S2100, the first terminal 101 receives fourth information sent by the access network device 103, where the fourth information is used to determine the first time.

Alternatively, the first time may be a failure time carried in the PosSIB. For example, the first information further includes: and locating the failure time of the auxiliary information, wherein the first time is the failure time.

Optionally, the first time is coordinated universal time UTC.

In an example, the time after the first terminal 101 receives the positioning assistance information may be understood as a current time, which may be separated by a first duration after the time when the positioning assistance information is received.

Optionally, the first duration is defined by a protocol, or the first duration is configured by the access network device.

Optionally, the first durations corresponding to different positioning assistance information are the same or different. For example, each time positioning assistance information is received, a first duration corresponding to the positioning assistance information may be configured or defined.

In a specific example: assuming that the first duration is 100ms, the time when the first terminal 101 receives the positioning assistance information is SFN5, i.e. the first terminal 101 receives the positioning assistance information at SFN 5. The positioning assistance information fails in SFN15, i.e. 15 number SFN.

In an example, the value of the SFN or the value of the DFN is recounted, and the SFN or the DFN is flipped.

In some embodiments, for each received positioning assistance information, a respective failure condition may be respectively corresponding.

In step S2106, the first terminal 101 does not transmit positioning assistance information to the second terminal 102.

In some embodiments, the first terminal 101 does not send the positioning assistance information to the second terminal 102 when the positioning assistance information satisfies the corresponding failure condition.

In some embodiments, the second terminal 102 may be inaccurate in locating according to the positioning assistance information when the positioning assistance information satisfies the failure condition, indicating that the positioning assistance information may fail.

In step S2107, the second terminal 102 determines a third time for positioning according to the third information.

In some embodiments, the third time may refer to a GNSS system time.

In some embodiments, when the third time is a GNSS system time, the third time is a time indicated by the third information.

In some embodiments, the third time may refer to a reference time, which may be a UTC time, in conjunction with the description of the previous embodiments.

In some embodiments, when the third time is the reference time indicated in the auxiliary information sent by the access network device 103, the third time is the UTC time corresponding to the SFN at the end position where the first system information SI window is located.

Wherein the first SI window is a time window in which the access network device 103 transmits a system information block SIB, such as SIB9, SIB9 being used for configuring the reference time.

In some embodiments, the second terminal 102 determines its corresponding location information, such as location coordinates, according to the third time and the time delay of receiving the positioning signals of the different access network devices 103.

In some embodiments, steps S2101-2102 and S2104-S2106 are optional.

In some embodiments, the order of steps S2103 and S2104 may be interchanged.

In some embodiments, steps S2105, S2106, S2107 are three schemes side by side.

In some embodiments, steps S2106 and S2107 may be performed synchronously.

In some embodiments, the method may include steps S2103 and S2107.

In some embodiments, the method may include steps S2103, S2106, and S2107.

In some embodiments, the method may include steps S2102, S2103, and S2107.

In some embodiments, the method may include steps S2102, S2103, S2106, and S2107.

In some embodiments, the method may include steps S2101-S2104, or steps S2101-S2105, or steps S2101-S2106.

In some embodiments, the method may include steps S2101-S2103, and S2107.

In some embodiments, the method may include steps S2101-S2104, and S2107.

In the embodiment of the present disclosure, when the first terminal 101 sends the positioning auxiliary information to the second terminal 102, the first terminal 101 sends the time for receiving the positioning auxiliary information synchronously, so that a time reference for the positioning auxiliary information can be provided for the second terminal 102, so that the positioning auxiliary information can be conveniently applied or not applied in a reasonable time range, and the accuracy in the positioning process is ensured.

Fig. 3 is a schematic diagram illustrating a method of transmitting positioning assistance information according to an embodiment of the present disclosure. As shown in fig. 3, an embodiment of the present disclosure relates to a method for transmitting positioning assistance information, for a first terminal 101, where the method includes:

in step S3101, the first terminal 101 receives the first information transmitted by the access network device 103.

In some embodiments, the implementation of step S3101 may refer to the related implementations of steps S2101 to S2102, which are not described herein.

In some embodiments, the first information comprises positioning assistance information.

In step S3102, the first terminal 101 transmits the second information to the second terminal 102.

In some embodiments, the implementation of step S3102 may refer to the related implementation of step S2103, which is not described herein.

In some embodiments, the second information includes positioning assistance information and third information, the third information indicating a time when the first terminal received the positioning assistance information.

In some embodiments, the second terminal 102 communicates with the first terminal 101 based on a side-link SL, and the second terminal 102 is connected to the access network device 103 through the first terminal.

In some embodiments, the third information includes at least one of:

SFN when the first terminal receives the positioning auxiliary information;

and the first terminal receives the DFN when the positioning auxiliary information is received.

The related description of the third information may refer to the related description of the corresponding embodiment of fig. 2, which is not repeated herein.

In some embodiments, the third information is further used to indicate: the SFN or the DFN when the first terminal receives the positioning auxiliary information is acquired before the value recounting or after the recounting;

Wherein, after the first terminal 101 receives the positioning assistance information, when the SFN value or the DFN value is recounted, the information is indicated in the third information, that is: the SFN or DFN at which the first terminal receives the positioning assistance information is acquired before or after the value recounting.

In some embodiments, the first terminal 101 may store the positioning assistance information after receiving the positioning assistance information.

For example, the method further comprises:

in step S3103, the first terminal 101 stores the positioning assistance information after receiving the positioning assistance information.

The embodiment of step S3103 may refer to the related embodiment of step S2104, which is not described herein.

In some embodiments, after receiving the positioning assistance information, the first terminal 101 may determine whether the positioning assistance information is invalid according to a failure condition corresponding to each positioning assistance information.

For example, the method further comprises:

in step S3104, the first terminal 101 releases the positioning assistance information.

The embodiment of step S3104 may refer to the related embodiment of step S2105, which is not described herein.

In some embodiments, step S3104 is performed when the positioning assistance information satisfies the corresponding failure condition.

In step S3105, the first terminal 101 does not transmit positioning assistance information to the second terminal 102.

The embodiment of step S3105 may refer to the related embodiment of step S2106, which is not described herein.

In some embodiments, step S3105 is performed when the positioning assistance information satisfies the corresponding failure condition.

In some embodiments, the failure condition includes at least one of:

the time after the first terminal receives the positioning auxiliary information reaches a second time, and the second time is separated from the time for receiving the positioning auxiliary information by a first duration;

The related implementation of the failure condition may be referred to the related description in the corresponding embodiment of fig. 2, which is not repeated here.

Alternatively, the first time may be a dead time, and may be indicated by the first information, e.g. the first information further includes: the expiration time of the positioning assistance information.

Alternatively, the first time may be configured by the access network device 103. For example, the method further comprises:

In step S3100, the first terminal 101 receives fourth information sent by the access network device 103, where the fourth information is used to determine the first time.

The embodiment of step S3100 may refer to the related embodiment of step S2100, which is not described herein.

Alternatively, step S3100 is performed at least before step S3104 or S3105.

Optionally, the first time is coordinated universal time UTC.

Optionally, the first durations corresponding to different positioning assistance information are the same or different.

In some embodiments, steps S3102-S3105 are optional.

In some embodiments, the order of steps S3102 and S3103 may be interchanged.

In some embodiments, the order of steps S3104 and S3105 may be interchanged.

In some embodiments, steps S3102, S3104 and S3105 correspond to a side-by-side scheme.

In some embodiments, the method includes step S3101.

In some embodiments, the method includes steps S3101-S3102.

In some embodiments, the method includes steps S3101-S3103.

In some embodiments, the method includes steps S3101, S3103-S3105.

Fig. 4 is a schematic diagram illustrating a method of receiving positioning assistance information according to an embodiment of the present disclosure. As shown in fig. 4, an embodiment of the present disclosure relates to a method for receiving positioning assistance information, for a second terminal 102, the method including:

in step S4101, the second terminal 102 receives the second information transmitted by the first terminal 101.

In some embodiments, the implementation of step S4101 may refer to the related implementation of steps S2101 to S2103, or refer to the implementation of step S3101, which is not described herein.

In some embodiments, the third information includes at least one of:

SFN when the first terminal receives the positioning auxiliary information;

In step S4102, the second terminal 102 determines a third time for positioning according to the third information.

In some embodiments, the implementation of step S4102 may refer to the related implementation of step S2107, which is not described herein.

In some embodiments, when the third time is the GNSS system time, step S4102 may employ step S4102-1:

In step S4102-1, the second terminal 102 determines the third time to be the time indicated by the third information.

In some embodiments, when the third time is the reference time indicated in the auxiliary information sent by the access network device 103, step S4102 may employ step S4102-2:

in step S4102-2, the second terminal 102 determines that the third time is UTC time corresponding to the SFN at the end position where the first system information SI window is located.

In some embodiments, the method may include steps S4101 and S4102-1.

In some embodiments, the method may include steps S4101 and S4102-2.

In the embodiment of the present disclosure, the second terminal 102 obtains the positioning auxiliary information through the first terminal 101, and may simultaneously obtain the time of receiving the positioning auxiliary information sent by the first terminal 101, so that the second terminal 102 may apply or not apply the positioning auxiliary information in a suitable time range in combination with this time reference, so as to avoid inaccurate positioning results caused by applying the invalid positioning auxiliary information.

Fig. 5 is a schematic diagram illustrating a method of transmitting positioning assistance information according to an embodiment of the present disclosure. As shown in fig. 5, an embodiment of the present disclosure relates to a method for transmitting positioning assistance information, for an access network device 103, where the method includes:

In step S5101, the access network device 103 receives the first information sent by the first network element 1041.

In some embodiments, the implementation of step S5101 may refer to the related implementation of step S2101, which is not described herein.

In step S5102, the access network device 103 transmits first information to the first terminal 101.

In some embodiments, the implementation of step S5102 may refer to the related implementation of step S2102, which is not described herein.

In some embodiments, the first terminal 101 transmits second information to the second terminal 102, the second information including positioning assistance information and third information. Wherein the third information is used for indicating the time when the first terminal 101 receives the positioning assistance information; the third information is also used for the second terminal 102 to determine a third time for positioning.

In some embodiments, the method may also refer to descriptions of related embodiments in fig. 3 to 4, which are not repeated here.

In some embodiments, the method may further comprise:

in step S5103, the access network device 103 transmits fourth information to the first terminal 101, the fourth information being used to determine the first time.

The embodiment of step S5103 may also refer to the descriptions of steps S2100 and S3100, which are not repeated here.

In some embodiments, the order of the step S5103 is not limited, and may be performed before the step S5101 or S5102, or performed before the step S3104 or S3105.

In some embodiments, the first time is UTC.

In some embodiments, the method may further comprise:

in step S5104, the access network device 103 transmits SIB to the first terminal 101.

In some embodiments, the access network device 103 may broadcast that SIB may be SIB9, with SIB9 being used to transmit the assistance information in conjunction with the description of the previous embodiments.

In some embodiments, in the auxiliary information carried by SIB9, the reference time indicating the UTC time type may be configured, where the reference time is used for the second terminal to determine a third time for positioning.

For example, the reference time, i.e., the third time, is: and UTC time corresponding to the SFN of the ending position of the SI window of the first system information. Wherein the first SI window is a time window in which the access network device 103 transmits a system information block SIB, such as SIB 9.

In some embodiments, steps S5103 and S5104 are optional.

In some embodiments, the order of steps S5103 and S5104 is not limited.

In some embodiments, the method may include steps S5101-S5102.

In some embodiments, the method may include steps S5101-S5103.

In some embodiments, the method may include steps S5101-S5104.

In the embodiment of the present disclosure, the access network device 103 sends the positioning auxiliary information sent by the first network element 1041 to the second terminal 102 through the first terminal 101, and the first terminal 101 may also synchronously indicate the time of receiving the positioning auxiliary information in the sending process, so that the second terminal 102 may apply or not apply the positioning auxiliary information in a suitable time range in combination with this time reference, so as to avoid inaccurate positioning results caused by applying the invalid positioning auxiliary information.

Fig. 6 is a schematic diagram illustrating a method of transmitting positioning assistance information according to an embodiment of the present disclosure. As shown in fig. 6, an embodiment of the present disclosure relates to a method for transmitting positioning assistance information, for a first network element 1041, where the method includes:

in step S6101, the first network element 1041 sends first information to the access network device 103.

In some embodiments, the implementation of step S6101 may refer to the related implementation of step S2101, which is not described herein.

In some embodiments, the access network device 103 may send the first information to the second terminal 102 through the first terminal 101, and the related embodiments may refer to the description of the related embodiments in fig. 2 to 5, which are not repeated herein.

In some embodiments, the first terminal 101 sends second information to the second terminal 102, the second information including positioning assistance information and third information, the third information being for indicating a time when the first terminal 101 received the positioning assistance information; the third information is also used for the second terminal 102 to determine a third time for positioning.

To facilitate an understanding of the disclosed embodiments, the following list of some specific examples:

example one:

after the relay UE receives the positioning assistance information, the positioning assistance information and the time when the positioning assistance information is received are stored. The relay UE transmits positioning auxiliary information and first time information to the remote UE, wherein the first time information is the time when the positioning auxiliary information is received.

The positioning assistance information may be positioning system information or positioning assistance system information. The positioning system information may carry GNSS reference time information or GNSS system time or UTC time.

In some embodiments, the first time information corresponds to the third information in the previous embodiments.

Example two:

the time when the positioning assistance information is received may be indicated by the SFN or DFN at the time of receiving the positioning assistance information.

Example three:

the relay UE releases the stored positioning assistance information and does not forward to the remote UE in any of the following cases:

reaching a first time; the first time can be the failure time of the stored positioning auxiliary information or the UTC time of the network configuration;

reaching a first duration after receiving the positioning auxiliary information; the first duration may be specified by a protocol or a network configuration. Different positioning assistance information may correspond to different first time periods; for example, if the first duration is 100ms and the UE receives the positioning assistance information in SFN No. 5, then the UE determines that the condition is satisfied in SFN No. 15.

After receiving the positioning assistance information, the SFN or DFN is flipped.

Example four:

after receiving the positioning assistance information, if the SFN or the DFN turns over (wrap around), indicating whether the SFN or the DFN receiving the positioning assistance information corresponds to the last cycle or the current cycle in the first time information.

Example five:

after receiving the positioning auxiliary information and the first time information, the remote UE determines positioning auxiliary time according to the first time information.

In some embodiments, the positioning assistance time corresponds to the third time in the previous embodiments.

Example six:

and when the positioning auxiliary time is the GNSS system time, the remote UE determines the GNSS system time at the moment corresponding to the first time information.

Example seven:

when the positioning auxiliary time is the UTC time indicated by the auxiliary information (broadcasted by the base station), the remote UE determines the UTC time of the SFN of the ending boundary where the SI window sent by the SIB9 corresponding to the first time information is located.

In the embodiments of the present disclosure, some or all of the steps and alternative implementations thereof may be arbitrarily combined with some or all of the steps in other embodiments, and may also be arbitrarily combined with alternative implementations of other embodiments.

The embodiments of the present disclosure also provide an apparatus for implementing any of the above methods, for example, an apparatus is provided, where the apparatus includes a unit or a module configured to implement each step performed by the terminal in any of the above methods. As another example, another apparatus is provided that includes a unit or module configured to implement steps performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

It should be understood that the division of each unit or module in the above apparatus is merely a division of a logic function, and may be fully or partially integrated into one physical entity or may be physically separated when actually implemented. Furthermore, units or modules in the apparatus may be implemented in the form of processor-invoked software: the device comprises, for example, a processor, which is connected to a memory, in which instructions are stored, the processor calling the instructions stored in the memory to implement any of the above methods or to implement the functions of the units or modules of the device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (Central Processing Unit, CPU) or microprocessor, and the memory is a memory within the device or a memory external to the device. Alternatively, the units or modules in the apparatus may be implemented in the form of hardware circuits, and part or all of the functions of the units or modules may be implemented by designing hardware circuits, which may be understood as one or more processors; for example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC), and the functions of some or all of the units or modules are implemented by designing the logic relationships of elements in the circuit; for another example, in another implementation, the above hardware circuit may be implemented by a programmable logic device (programmable logic device, PLD), for example, a field programmable gate array (Field Programmable Gate Array, FPGA), which may include a large number of logic gates, and the connection relationship between the logic gates is configured by a configuration file, so as to implement the functions of some or all of the above units or modules. All units or modules of the above device may be realized in the form of invoking software by a processor, or in the form of hardware circuits, or in part in the form of invoking software by a processor, and in the rest in the form of hardware circuits.

In the disclosed embodiment, the processor is a circuit with signal processing capability, and in one implementation, the processor may be a circuit with instruction reading and running capability, such as a central processing unit (Central Processing Unit, CPU), microprocessor, graphics processor (graphics processing unit, GPU) (which may be understood as a microprocessor), or digital signal processor (digital signal processor, DSP), etc.; in another implementation, the processor may implement a function through a logical relationship of hardware circuits that are fixed or reconfigurable, e.g., a hardware circuit implemented as an application-specific integrated circuit (ASIC) or a programmable logic device (programmable logic device, PLD), such as an FPGA. In the reconfigurable hardware circuit, the processor loads the configuration document, and the process of implementing the configuration of the hardware circuit may be understood as a process of loading instructions by the processor to implement the functions of some or all of the above units or modules. Furthermore, a hardware circuit designed for artificial intelligence may be used, which may be understood as an ASIC, such as a neural network processing unit (Neural Network Processing Unit, NPU), tensor processing unit (Tensor Processing Unit, TPU), deep learning processing unit (Deep learning Processing Unit, DPU), etc.

Fig. 7a is a schematic structural diagram of a first communication device according to an embodiment of the present disclosure. As shown in fig. 7a, the first communication device includes: a transceiver module 7101, where the transceiver module 7101 is configured to receive first information sent by an access network device, where the first information includes positioning auxiliary information; the transceiver module 7101 is further configured to send second information to a second terminal, where the second information includes positioning assistance information and third information, and the third information is used to indicate a time when the first terminal receives the positioning assistance information; wherein the second terminal and the first terminal are based on side-link SL communication, and the second terminal is connected with the access network device through the first terminal.

Optionally, the transceiver module 7101 is configured to perform steps related to message transceiving performed by the first terminal 101 in any of the above methods, which are not described herein.

Optionally, the first communication device further comprises: the processing module 7102, where the processing module 7102 is configured to execute steps related to message processing executed by the first terminal 101 in any of the above methods, which are not described herein.

Fig. 7b is a schematic structural diagram of a second communication device according to an embodiment of the present disclosure. As shown in fig. 7b, the second communication device includes: the device comprises a receiving and transmitting module 7201 and a processing module 7202, wherein the receiving and transmitting module 7201 is used for receiving second information sent by a first terminal, the second information comprises positioning auxiliary information and third information, and the third information is used for indicating the time when the first terminal receives the positioning auxiliary information; the processing module 7202 is configured to determine a third time for positioning according to the third information; wherein the second terminal and the first terminal are based on side-link SL communication, and the second terminal is connected with the access network device through the first terminal.

Optionally, the transceiver module 7201 is configured to perform the steps related to the transceiving performed by the second terminal 102 in any of the above methods, which are not described herein. The processing module 7202 is configured to execute steps related to processing performed by the second terminal 102 in any of the above methods, such as related steps of message generation, operation processing, etc., which are not described herein.

Fig. 7c is a schematic structural diagram of a third communication device provided in an embodiment of the present disclosure. As shown in fig. 7c, the third communication device includes: a transceiver module 7301, where the transceiver module 7301 is configured to receive first information sent by a first network element, where the first information includes positioning assistance information; the transceiver module 7301 is further configured to send the first information to the first terminal; the first information is used for sending second information to a second terminal by the first terminal, the second information comprises positioning auxiliary information and third information, and the third information is used for indicating the time when the positioning auxiliary information is received by the first terminal; the third information is also used for the second terminal to determine a third time for positioning.

Optionally, the transceiver module 7301 is configured to perform steps related to the transceiving performed by the access network device 103 in any of the above methods, which are not described herein.

Optionally, the third communication device further includes: the processing module 7302, where the processing module 7302 is configured to perform steps related to message processing performed by the access network device 103 in any of the above methods, which are not described herein.

Fig. 7d is a schematic structural diagram of a fourth communication device according to an embodiment of the present disclosure. As shown in fig. 7d, the fourth communication device includes: a transceiver module 7401, the transceiver module 7401 sending first information to the access network device, the first information including positioning assistance information; the first information is used for the first terminal to send second information to the second terminal, the second information comprises positioning auxiliary information and third information, and the third information is used for indicating the time when the first terminal receives the positioning auxiliary information; the third information is also used for the second terminal to determine a third time for positioning.

Optionally, the transceiver module 7401 is configured to perform the steps related to the transceiving performed by the first network element 1041 in any of the above methods, which is not described herein.

Optionally, the fourth communication device further includes: the processing module 7402, where the processing module 7402 is configured to perform the steps related to message processing performed by the first network element 1041 in any of the above methods, which are not described herein.

Fig. 8a is a schematic structural diagram of a communication device 8100 according to an embodiment of the present disclosure. The communication device 8100 may be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user device, etc.), a chip system, a processor, etc. that supports the network device to implement any of the above methods, or a chip, a chip system, a processor, etc. that supports the terminal to implement any of the above methods. The communication device 8100 may be used to implement the method described in the above method embodiments, and reference may be made in particular to the description of the above method embodiments.

As shown in fig. 8a, communication device 8100 includes one or more processors 8101. The processor 8101 may be a general-purpose processor or a special-purpose processor, etc., and may be, for example, a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processor may be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process data for the programs. The processor 8101 is operable to invoke instructions to cause the communication device 8100 to perform any of the above methods.

In some embodiments, communication device 8100 also includes one or more memory 8102 for storing instructions. Alternatively, all or part of memory 8102 may be external to communication device 8100.

In some embodiments, communication device 8100 also includes one or more transceivers 8103. When the communication device 8100 includes one or more transceivers 8103, communication steps such as transmission and reception in the above-described method are performed by the transceivers 8103, and other steps are performed by the processor 8101.

In some embodiments, the transceiver may include a receiver and a transmitter, which may be separate or integrated. Alternatively, terms such as transceiver, transceiver unit, transceiver circuit, etc. may be replaced with each other, terms such as transmitter, transmitter circuit, etc. may be replaced with each other, and terms such as receiver, receiving unit, receiver, receiving circuit, etc. may be replaced with each other.

Optionally, the communication device 8100 further includes one or more interface circuits 8104, where the interface circuits 8104 are coupled to the memory 8102, and where the interface circuits 8104 are operable to receive signals from the memory 8102 or other means, and operable to transmit signals to the memory 8102 or other means. For example, the interface circuit 8104 may read instructions stored in the memory 8102 and send the instructions to the processor 8101.

The communication device 8100 in the above embodiment description may be a network device or a terminal, but the scope of the communication device 8100 described in the present disclosure is not limited thereto, and the structure of the communication device 8100 may not be limited by fig. 8 a. The communication device may be a stand-alone device or may be part of a larger device. For example, the communication device may be: 1) A stand-alone integrated circuit IC, or chip, or a system-on-a-chip or subsystem; (2) A set of one or more ICs, optionally including storage means for storing data, programs; (3) an ASIC, such as a Modem (Modem); (4) modules that may be embedded within other devices; (5) A receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handset, a mobile unit, a vehicle-mounted device, a network device, a cloud device, an artificial intelligent device, and the like; (8) others, and so on.

Fig. 8b is a schematic structural diagram of a chip 8200 provided by an embodiment of the disclosure. For the case where the communication device 8100 may be a chip or a chip system, reference may be made to a schematic structural diagram of the chip 8200 shown in fig. 8b, but is not limited thereto. The chip 8200 includes one or more processors 8201, the processors 8201 being configured to invoke instructions to cause the chip 8200 to perform any of the methods described above.

In some embodiments, the chip 8200 further includes one or more interface circuits 8202, the interface circuits 8202 being coupled to the memory 8203, the interface circuits 8202 being operable to receive signals from the memory 8203 or other devices, the interface circuits 8202 being operable to transmit signals to the memory 8203 or other devices. For example, the interface circuit 8202 may read instructions stored in the memory 8203 and send the instructions to the processor 8201. Alternatively, the terms interface circuit, interface, transceiver pin, transceiver, etc. may be interchanged.

In some embodiments, chip 8200 further includes one or more memories 8203 for storing instructions. Alternatively, all or part of the memory 8203 may be external to the chip 8200.

The present disclosure also provides a storage medium having instructions stored thereon that, when executed on a communication device 8100, cause the communication device 8100 to perform any one of the above methods. Optionally, the storage medium is an electronic storage medium. Alternatively, the storage medium described above is a computer-readable storage medium, but is not limited thereto, and it may be a storage medium readable by other devices. Alternatively, the above-described storage medium may be a non-transitory (non-transitory) storage medium, but is not limited thereto, and it may also be a transitory storage medium.

The present disclosure also provides a program product which, when executed by a communication device 6100, causes the communication device 6100 to perform any of the above methods. Optionally, the above-described program product is a computer program product.

The present disclosure also provides a computer program which, when run on a computer, causes the computer to perform any of the above methods.

Industrial applicability

In the method, when the first terminal sends the positioning auxiliary information to the second terminal, the first terminal synchronously sends the time for receiving the positioning auxiliary information, so that time reference of the positioning auxiliary information can be provided for the second terminal, and the positioning auxiliary information can be conveniently applied or not applied in a reasonable time range, so that the accuracy in the positioning process is ensured.

Claims

1. A method of transmitting positioning assistance information, performed by a first terminal, the method comprising:

2. The method of claim 1, wherein the third information comprises at least one of:

a system frame number SFN when the first terminal receives the positioning auxiliary information;

and the first terminal receives the direct frame number DFN when the positioning auxiliary information is received.

3. The method of claim 1, wherein the method further comprises:

after receiving the positioning assistance information, the positioning assistance information is stored.

4. A method according to any one of claims 1 to 3, wherein the method further comprises at least one of:

releasing the positioning auxiliary information;

the positioning auxiliary information is not sent to the second terminal;

wherein the positioning auxiliary information satisfies a corresponding failure condition.

5. The method of claim 4, wherein the failure condition comprises at least one of:

the UTC time after receiving the positioning auxiliary information reaches the first time of the positioning auxiliary information;

And after the first terminal receives the positioning auxiliary information, the SFN value or the DFN value is recounted.

6. The method of claim 5, wherein,

the first information further includes: the failure time of the positioning auxiliary information;

the first time is the failure time.

7. The method of claim 5, wherein the method further comprises:

and receiving fourth information sent by the access network equipment, wherein the fourth information is used for determining the first time.

8. The method according to claim 5 to 7, wherein,

the first time is coordinated universal time UTC.

9. The method of claim 5, wherein,

the first duration is defined by a protocol, or the first duration is configured by the access network device.

10. The method of claim 5 or 9, wherein,

the first time periods corresponding to the different positioning auxiliary information are the same or different.

11. The method according to any one of claim 1 to 10, wherein,

the third information is further used to indicate: the SFN or the DFN when the first terminal receives the positioning auxiliary information is acquired before or after the value is recounted;

And after the first terminal receives the positioning auxiliary information, the value of the SFN or the value of the DFN is recounted.

12. A method of receiving positioning assistance information, performed by a second terminal, the method comprising:

determining a third time for positioning according to the third information;

the second terminal and the first terminal are in communication based on a side uplink SL, and the second terminal is connected with access network equipment through the first terminal.

13. The method of claim 12, wherein the third information comprises at least one of:

the first terminal receives the SFN when the positioning auxiliary information is received;

14. The method of claim 12 or 13, wherein,

15. The method of claim 12 or 13, wherein the determining a third time for positioning from the third information comprises:

determining the third time as the time indicated by the third information;

wherein the third time is a global navigation satellite system GNSS system time.

16. The method of claim 12 or 13, wherein the determining a third time for positioning from the third information comprises:

determining the third time as UTC time corresponding to SFN of the ending position of the SI window of the first system information;

wherein the first SI window is a time window in which the access network device transmits a system information block SIB.

17. A method of transmitting positioning assistance information, performed by an access network device, the method comprising:

transmitting the first information to a first terminal;

18. The method of claim 17, wherein the method further comprises:

and sending fourth information to the first terminal, wherein the fourth information is used for determining the first time.

19. The method of claim 18, wherein,

the first time is UTC.

20. The method of claim 17, wherein the method further comprises:

and transmitting SIB to the first terminal, wherein the SIB is used for configuring reference time, and the reference time is used for determining a third time for positioning by the second terminal.

21. A method of transmitting positioning assistance information, performed by a first network element, the method comprising:

22. A method of transmitting positioning assistance information for a communication system, the method comprising:

23. A first communication device, the device comprising:

24. A second communication device, the device comprising:

wherein the second terminal is in communication with the first terminal based on a side uplink SL, and the second terminal is connected with an access network device through the first terminal.

25. A third communication device, the device comprising:

26. A fourth communications device, the device comprising:

27. A communication device, comprising:

one or more processors;

wherein the processor is configured to invoke instructions to cause the communication device to perform the method of any of claims 1 to 11, or to perform the method of any of claims 12 to 16, or to perform the method of any of claims 17 to 20, or to perform the method of claim 21.

28. A communication system, comprising:

the system comprises a first terminal, a second terminal, access network equipment and core network equipment; wherein,,

the first terminal being configured to perform the method of any of claims 1 to 11;

the second terminal being configured to perform the method of any of claims 12 to 16;

the access network device being configured to perform the method of any of claims 17 to 20;

the core network device is configured to perform the method of claim 21.

29. A storage medium having instructions stored thereon,

the instructions, when executed on a communication device, cause the communication device to perform the method of any one of claims 1 to 11, or to perform the method of any one of claims 12 to 16, or to perform the method of any one of claims 17 to 20, or to perform the method of claim 21.