CN117098059A - Positioning method and related device - Google Patents

Positioning method and related device Download PDF

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Publication number
CN117098059A
CN117098059A CN202210520687.6A CN202210520687A CN117098059A CN 117098059 A CN117098059 A CN 117098059A CN 202210520687 A CN202210520687 A CN 202210520687A CN 117098059 A CN117098059 A CN 117098059A
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China
Prior art keywords
positioning
information
reference signal
terminal device
configuration information
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CN202210520687.6A
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Chinese (zh)
Inventor
范慧芳
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Spreadtrum Semiconductor Nanjing Co Ltd
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Spreadtrum Semiconductor Nanjing Co Ltd
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Priority to CN202210520687.6A priority Critical patent/CN117098059A/en
Publication of CN117098059A publication Critical patent/CN117098059A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/023—Services making use of location information using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/025—Services making use of location information using location based information parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

The application discloses a positioning method and a related device, relating to the technical field of communication, wherein the method comprises the following steps: and sending indication information for indicating to start hybrid positioning to the first terminal equipment, and determining the position information of the first terminal equipment. Wherein the location information of the first terminal device is determined based on a hybrid positioning, the hybrid positioning being a positioning combining the first positioning and the second positioning; the first positioning corresponds to positioning implemented using a first link reference signal, the first link reference signal being a positioning reference signal between the first terminal device and the second terminal device; the second positioning corresponds to a positioning achieved using a second link reference signal, which is a positioning reference signal between the first terminal device and the access network device. By adopting the application, the terminal equipment can be instructed to start hybrid positioning, and the positioning precision is improved.

Description

Positioning method and related device
Technical Field
The present application relates to the field of communications technologies, and in particular, to a positioning method and a related device.
Background
With the rapid development of the fifth generation communication technology (5 th-generation, 5G), the demands for location technology for diversified service types are becoming stronger. In a positioning scheme implemented on the basis of the Uu port, the positioning of the terminal equipment can be implemented by a channel sounding reference signal (sounding reference signal, SRS) or a positioning reference signal (positioning reference signal, PRS) between the terminal equipment and the base station. However, these positioning methods have low positioning accuracy, and cannot meet the positioning requirement with high requirements on positioning capability. Therefore, how to improve the positioning accuracy is a problem to be solved.
Disclosure of Invention
The embodiment of the application provides a positioning method and a related device, which can improve the positioning precision of terminal equipment.
In a first aspect, the present application provides a positioning method, which may comprise: sending indication information to the first terminal equipment, wherein the indication information indicates to start hybrid positioning, and the hybrid positioning is positioning combining the first positioning and the second positioning; the first positioning corresponds to positioning implemented using a first link reference signal, the first link reference signal being a positioning reference signal between the first terminal device and the second terminal device; the second positioning corresponds to positioning implemented using a second link reference signal, the second link reference signal being a positioning reference signal between the first terminal device and the access network device; position information of the first terminal device is determined, the position information of the first terminal device being determined based on hybrid positioning. Therefore, the position of the first terminal equipment can be more accurately determined by indicating the first terminal equipment to start hybrid positioning, so that the positioning accuracy of the first terminal equipment is improved.
In a possible implementation manner, the indication information indicates that the hybrid positioning is turned on, specifically the indication information indicates one or more of the following: opening the first positioning; transmitting the first link reference signal; measuring the first link reference signal; reporting first positioning information, wherein the first positioning information corresponds to first positioning, and the first positioning information comprises a first positioning estimation result and/or a first positioning measurement result; and reporting a positioning estimation result of the first terminal equipment, wherein the positioning estimation result is obtained according to a first positioning estimation result and a second positioning estimation result, the first positioning estimation result corresponds to the first positioning, and the second positioning estimation result corresponds to the second positioning. The method and the device have the advantages that the indication information is sent to the first terminal equipment, so that the first terminal equipment can more flexibly select a mode of starting hybrid positioning.
In one possible implementation manner, the method further includes: receiving first positioning information from a first terminal device; the determining the location information of the first terminal device includes: determining the position information of the first terminal equipment according to the first positioning information and the second positioning information; the second positioning information corresponds to a second positioning, the second positioning information comprising a second positioning estimation result and/or a second positioning measurement result.
In one possible implementation manner, the method further includes: receiving a positioning estimation result from a first terminal device; the determining the location information of the first terminal device includes: and determining the positioning estimation result as the position information of the first terminal equipment. Therefore, the positioning estimation result of the first terminal equipment is directly received, so that the position information of the first terminal equipment can be more quickly determined.
In one possible implementation, the indication information is carried in positioning signaling sent to the first terminal device.
In one possible implementation manner, the method further includes: receiving positioning configuration information from an access network device, the positioning configuration information comprising one or more of: capability information, first configuration information of a first link reference signal, reference accuracy of first positioning, reference position information, identification information of first terminal equipment and positioning state indication information; wherein the capability information indicates whether the first terminal device supports the first positioning; the reference precision of the first positioning is the positioning precision of the first positioning estimated by the access network equipment; the reference position information is the position information of the fixed position equipment; the first configuration information is configuration information related to positioning accuracy in the configuration information of the first link reference signal, and the first configuration information comprises one or more of the following: transmission bandwidth, resource type, transmission period, transmission times, number of resources and number of resource sets; the identification information of the first terminal device includes one or more of: user hidden identifier and globally unique temporary identifier; the positioning state indication information indicates whether the first terminal device is currently performing the first positioning. It can be seen that positioning configuration information is received from the access network device in order to determine whether to instruct the first terminal device to turn on hybrid positioning.
In one possible implementation, the positioning configuration information is carried in positioning signaling from the access network device.
In one possible implementation manner, the sending indication information to the first terminal device includes: sending indication information to the first terminal equipment according to one or more of positioning requirement information, positioning configuration information and second positioning information; the second positioning information corresponds to a second positioning, the second positioning information comprising a second positioning estimation result and/or a second positioning measurement result. Therefore, before the indication information is sent to the first terminal device, multiple factors are considered, so that whether the hybrid positioning is started or not can be judged more accurately.
In one possible implementation manner, the method further includes: receiving second configuration information of a first link reference signal from access network equipment; the second configuration information is all configuration information of the first link reference signal; if the first positioning information comprises a first positioning measurement result, according to the second configuration information, the first positioning measurement result is calculated, and a first positioning estimation result is obtained. Therefore, the second configuration information is reported, which is favorable for resolving the first positioning measurement result.
In a second aspect, the present application provides another positioning method, which may comprise: receiving indication information from a positioning function network element, wherein the indication information is used for indicating starting hybrid positioning, and the hybrid positioning is positioning combining a first positioning and a second positioning; the first positioning corresponds to positioning implemented using a first link reference signal, the first link reference signal being a positioning reference signal between the first terminal device and the second terminal device; the second positioning corresponds to positioning implemented using a second link reference signal, the second link reference signal being a positioning reference signal between the first terminal device and the access network device; and starting the hybrid positioning according to the indication information. It can be seen that the hybrid positioning is started according to the indication information so as to improve the positioning performance.
In one possible implementation, the above-mentioned opening hybrid positioning includes one or more of the following: starting a first positioning; transmitting a first link reference signal to a second terminal device; measuring a first link reference signal; reporting first positioning information, wherein the first positioning information corresponds to first positioning, and the first positioning information comprises a first positioning estimation result and/or a first positioning measurement result; and reporting a positioning estimation result, wherein the positioning estimation result is obtained according to a first positioning estimation result and a second positioning estimation result, the first positioning estimation result corresponds to the first positioning, and the second positioning estimation result corresponds to the second positioning.
In one possible implementation, the indication information is carried in positioning signaling from a positioning function network element.
In a third aspect, the present application provides a further positioning method, which may comprise: transmitting positioning configuration information to a positioning function network element, wherein the positioning configuration information comprises one or more of the following: capability information, first configuration information of a first link reference signal, reference accuracy of a first positioning, and reference position information; the first position corresponds to a position achieved using the first link reference signal; the first link reference signal is a positioning reference signal between the first terminal equipment and the second terminal equipment, identification information of the first terminal equipment and positioning state indication information; wherein the capability information indicates whether the first terminal device supports the first positioning; the reference precision of the first positioning is the positioning precision of the first positioning estimated by the access network equipment; the reference position information is the position information of the fixed position equipment; the first configuration information is configuration information related to positioning accuracy in the configuration information of the first link reference signal, and the first configuration information comprises one or more of the following: transmission bandwidth, resource type, transmission period, transmission times, number of resources and number of resource sets; the identification information of the first terminal device includes one or more of: user hidden identifier and globally unique temporary identifier; the positioning state indication information indicates whether the first terminal device is currently performing the first positioning. It can be seen that the positioning configuration information is sent to the positioning function network element, so that the positioning function network element can more accurately improve the positioning performance of the first terminal device according to the positioning configuration information.
In one possible implementation, the positioning configuration information is carried in positioning signaling from the access network device.
In one possible implementation manner, the method further includes: transmitting second configuration information of the first link reference signal to the positioning function network element; the second configuration information is all configuration information of the first link reference signal, and the second configuration information is used for resolving a first positioning measurement result, wherein the first positioning measurement result corresponds to the first positioning.
In a fourth aspect, the present application provides a positioning device, the device including a communication unit and a processing unit, where the communication unit is configured to send indication information to a first terminal device, where the indication information indicates that hybrid positioning is started, and the hybrid positioning is positioning combining a first positioning and a second positioning; the first positioning corresponds to positioning implemented using a first link reference signal, the first link reference signal being a positioning reference signal between the first terminal device and the second terminal device; the second positioning corresponds to positioning implemented using a second link reference signal, the second link reference signal being a positioning reference signal between the first terminal device and the access network device; and the processing unit is used for determining the position information of the first terminal equipment, and the position information of the first terminal equipment is determined based on the hybrid positioning.
In a fifth aspect, the present application provides another positioning device, the device comprising a communication unit and a processing unit, wherein the communication unit is configured to receive indication information from a positioning function network element, the indication information being configured to indicate to start hybrid positioning, the hybrid positioning being positioning combining a first positioning and a second positioning; the first positioning corresponds to positioning implemented using a first link reference signal, the first link reference signal being a positioning reference signal between the first terminal device and the second terminal device; the second positioning corresponds to positioning implemented using a second link reference signal, the second link reference signal being a positioning reference signal between the first terminal device and the access network device; and the processing unit is used for determining the position information of the first terminal equipment, and the position information of the first terminal equipment is determined based on the hybrid positioning.
In a sixth aspect, the present application provides a positioning device, the device comprising a communication unit, the communication unit being configured to send positioning configuration information to a positioning function network element, the positioning configuration information comprising one or more of: capability information, first configuration information of a first link reference signal, reference accuracy of a first positioning, and reference position information; the first position corresponds to a position achieved using the first link reference signal; the first link reference signal is a positioning reference signal between the first terminal equipment and the second terminal equipment, identification information of the first terminal equipment and positioning state indication information; wherein the capability information indicates whether the first terminal device supports the first positioning; the reference precision of the first positioning is the positioning precision of the first positioning estimated by the access network equipment; the reference position information is the position information of the fixed position equipment; the first configuration information is configuration information related to positioning accuracy in the configuration information of the first link reference signal, and the first configuration information comprises one or more of the following: transmission bandwidth, resource type, transmission period, transmission times, number of resources and number of resource sets; the identification information of the first terminal device includes one or more of: user hidden identifier and globally unique temporary identifier; the positioning state indication information indicates whether the first terminal device is currently performing the first positioning.
In a seventh aspect, the present application provides a positioning device comprising a processor, a memory and a computer program or instructions stored on the memory, characterized in that the processor executes the computer program or instructions to implement a method as in the first aspect and any one of its possible implementations, or to implement a method as in the second aspect and any one of its possible implementations, or to implement a method as in the third aspect and any one of its possible implementations.
In an eighth aspect, the present application provides a chip. In one implementation, the chip is configured to send indication information to the first terminal device, where the indication information indicates that hybrid positioning is started, and the hybrid positioning is positioning combining the first positioning and the second positioning; the first positioning corresponds to positioning implemented using a first link reference signal, the first link reference signal being a positioning reference signal between the first terminal device and the second terminal device; the second positioning corresponds to positioning implemented using a second link reference signal, the second link reference signal being a positioning reference signal between the first terminal device and the access network device; position information of the first terminal device is determined, the position information of the first terminal device being determined based on hybrid positioning. In another implementation, the chip is configured to receive indication information from a positioning function network element, where the indication information is used to indicate to start hybrid positioning, and the hybrid positioning is positioning combining the first positioning and the second positioning; the first positioning corresponds to positioning implemented using a first link reference signal, the first link reference signal being a positioning reference signal between the first terminal device and the second terminal device; the second positioning corresponds to positioning implemented using a second link reference signal, the second link reference signal being a positioning reference signal between the first terminal device and the access network device; and starting the hybrid positioning according to the indication information. In yet another implementation, the chip is configured to send positioning configuration information to a positioning function network element, where the positioning configuration information includes one or more of: capability information, first configuration information of a first link reference signal, reference accuracy of a first positioning, and reference position information; the first position corresponds to a position achieved using the first link reference signal; the first link reference signal is a positioning reference signal between the first terminal equipment and the second terminal equipment, identification information of the first terminal equipment and positioning state indication information; wherein the capability information indicates whether the first terminal device supports the first positioning; the reference precision of the first positioning is the positioning precision of the first positioning estimated by the access network equipment; the reference position information is the position information of the fixed position equipment; the first configuration information is configuration information related to positioning accuracy in the configuration information of the first link reference signal, and the first configuration information comprises one or more of the following: transmission bandwidth, resource type, transmission period, transmission times, number of resources and number of resource sets; the identification information of the first terminal device includes one or more of: user hidden identifier and globally unique temporary identifier; the positioning state indication information indicates whether the first terminal device is currently performing the first positioning.
In a ninth aspect, the application provides a computer readable storage medium having stored therein computer readable instructions which, when run on a communications device, cause the communications device to perform the method of the first aspect and any one of its possible implementations, or to perform the method of the second aspect and any one of its possible implementations, or to perform the method of the third aspect and any one of its possible implementations.
In a tenth aspect, the application provides a computer program or computer program product comprising code or instructions which, when run on a computer, cause the computer to perform the method as in the first aspect and any of its possible implementations, or to perform the method as in the second aspect and any of its possible implementations, or to perform the method as in the third aspect and any of its possible implementations.
In an eleventh aspect, the present application provides a module apparatus, the module apparatus including a communication module, a power module, a storage module, and a chip module, wherein: the power supply module is used for providing electric energy for the module equipment; the storage module is used for storing data and instructions; the communication module is used for carrying out internal communication of module equipment or carrying out communication between the module equipment and external equipment; the chip module is for performing the method as in the first aspect and any of its possible implementations, or for performing the method as in the second aspect and any of its possible implementations, or for performing the method as in the third aspect and any of its possible implementations.
In a twelfth aspect, the present application provides a communication system comprising communication means for performing the method of the first aspect and any of its possible implementations, communication means for performing the method of the second aspect and any of its possible implementations, and communication means for performing the method of the third aspect and any of its possible implementations.
Drawings
Fig. 1 is a schematic diagram of a communication system according to an embodiment of the present application;
fig. 2 is a schematic flow chart of Uu port positioning according to an embodiment of the present application;
fig. 3 is a schematic diagram of an LPP protocol stack according to an embodiment of the present application;
fig. 4 is a schematic diagram of an LPP signaling interaction flow provided by an embodiment of the present application;
fig. 5 is a schematic diagram of an NRPPa signaling interaction flow provided in an embodiment of the present application;
FIG. 6 is a flow chart of a positioning method according to an embodiment of the present application;
FIG. 7 is a flowchart showing a specific implementation of step S601 in the embodiment shown in FIG. 6;
FIG. 8 is a schematic structural view of a positioning device according to an embodiment of the present application;
FIG. 9 is a schematic diagram of another positioning device according to an embodiment of the present application;
Fig. 10 is a schematic structural diagram of a chip module according to an embodiment of the present application.
Detailed Description
In the present application, the words "first", "second", etc. are used to distinguish between identical items or similar items that have substantially the same function and effect. It will be appreciated by those of skill in the art that the words "first," "second," and the like do not limit the amount and order of execution, and that the words "first," "second," and the like do not necessarily differ. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.
It should be understood that in the present application, "at least one" means one or more; "plurality" means two or more. In addition, "equal" of the present application may be used in conjunction with "greater than" or "less than". Under the condition of being equal to and being greater than, adopting a technical scheme of being greater than; under the condition of being used together with 'equal to' and 'less than', the technical scheme of 'less than' is adopted.
First, a system architecture to which the present application relates will be explained.
The embodiment of the application can be applied to a 5G system and also can be called an NR system; or may also be applied to sixth generation (6 th-generation, 6G) systems, or seventh generation (7 th-generation, 7G) systems, or other communication systems in the future. Or the application may also be applied to long term evolution (long term evolution, LTE) systems, and optionally to second generation (2 nd-generation, 2G) or third generation (3 rd-generation, 3G) systems.
Referring to fig. 1, fig. 1 is a schematic diagram of a communication system according to an embodiment of the present application. The communication system may include, but is not limited to, a first terminal device 101, a second terminal device 102, an access network device 103, and a positioning function network element 104. The number and form of the devices shown in fig. 1 are only used for illustration and not to limit the embodiments of the present application, and in practical applications, terminal devices, access network devices, and positioning function network elements different from the number shown in fig. 1 may be included.
The terminal device may be a device with a wireless transceiver function, and may also be referred to as a terminal (terminal). The terminal device may refer to various forms of User Equipment (UE), mobile Station (MS), mobile Terminal (MT), access terminal device, in-vehicle terminal device, industrial control terminal device, UE unit, UE station, mobile station, remote terminal device, mobile device, UE terminal device, wireless communication device, UE agent, UE apparatus, or the like. The terminal device may also be a cellular telephone, a cordless telephone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, WLL) station, a personal digital assistant (personal digital assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a wearable device, a terminal device in a future communication system, etc. The terminal device may be fixed or mobile. In some embodiments, the terminal device may also be a device with a transceiver function, such as a chip module. The chip module may include a chip and may further include other discrete devices. The embodiment of the application does not limit the specific technology and the specific equipment form adopted by the terminal equipment.
The access network device may be a device providing wireless communication functionality for the terminal device, also referred to as a network device or radio access network (radio access network, RAN) device, etc. Exemplary access network devices include, but are not limited to: a next generation base station (gcb), evolved node B (eNB), radio network controller (radio network controller, RNC), node B (NB), base station controller (base station controller, BSC), base transceiver station (basetransceiver station, BTS), home base station (e.g., home evolved node B, or home node B, HNB), baseband unit (BBU), transceiving point (transmitting and receiving point, TRP), transmitting point (transmitting point, TP), mobile switching center, and the like in 5G. In some embodiments, the access network device may also be a device, such as a chip module, with the functionality to provide wireless communication for the terminal device. By way of example, the chip module may include a chip, and may include other discrete devices. The specific technology and specific device configuration adopted by the access network device in the embodiment of the application are not limited.
The positioning function network element is responsible for positioning the terminal device, and can also be described as a positioning management network element, a positioning management device, a positioning device, a position server and the like. The location function network element may be a location management function (location management function, LMF) in the 5G core network, or may be a network element having the same function as the LMF in the future communication system, for example, a network element having the same function as the LMF in the 6G system. The location function network element of the present application takes LMF as an example.
In the present application, the communication interface between the first terminal apparatus 101 and the second terminal apparatus 102 may be referred to as a Side Link (SL) port, and the communication link between the first terminal apparatus 101 and the second terminal apparatus 102 may be referred to as a side link, which may also be described as a side link, a through link, a direct link, a sub link, or a PC5 link, or the like. The communication interface between the access network device 103 and the terminal device (e.g., the first terminal device 101) may be referred to as a Uu port, and the communication link between the access network device 103 and the terminal device (e.g., the first terminal device 101) may be referred to as a Uu link, which may also be described as a Uu port link or a main link, etc. For simplicity of illustration, only the Uu link between the first terminal equipment 101 and the access network equipment is shown in fig. 1, in fact, there may be a Uu link between the second terminal equipment 102 and the access network equipment. It should be noted that the first terminal device 101 and the second terminal device 102 may access the same access network device, or may access different access network devices, for example, the first terminal device 101 accesses the access network device 1, and the second terminal device 102 accesses the access network device 2.
Signaling interaction between the access network device 103 and the positioning function network element 104 can be achieved through an NR positioning protocol a (NR positioning protocol A, NRPPa), and signaling interaction between the first terminal device 101 or the second terminal device 102 and the positioning function network element 104 can be achieved through an LTE positioning protocol (LTE Positioning Protocol, LPP). For simplicity of illustration, only LPP signalling between the second terminal device 102 and the positioning function network element 104 is shown in fig. 1, in fact LPP signalling between the first terminal device 101 and the positioning function network element 104 may also be present. In addition, for simplicity of illustration, only logical LPP signaling between the second terminal device 102 and the positioning function network element 104 is shown, and actually, the LPP signaling needs to be transparently transferred to the positioning function network element 104 through the access network device 103, the access and mobility management function (access and mobility management function, AMF) network element. In fig. 1, the LPP signaling is omitted from the procedure through the access network device 103 and the AMF for ease of observation.
It may be understood that, the communication system described in the embodiment of the present application is for more clearly describing the technical solution of the embodiment of the present application, and does not constitute a limitation on the technical solution provided by the embodiment of the present application, and those skilled in the art can know that, with the evolution of the system architecture and the appearance of a new service scenario, the technical solution provided by the embodiment of the present application is equally applicable to similar technical problems.
Next, related names or terms related to the present application are set forth to facilitate understanding by those skilled in the art.
1. Uu port location
The Uu port positioning refers to positioning realized by positioning reference signals between terminal equipment and access network equipment sent by the Uu port. Uu port location may also be described as Uu link location, master location, or master link location, etc. The positioning reference signal between the terminal device and the access network device may be SRS and/or PRS. Uu port location may be classified into Uplink (UL) location and Downlink (DL) location.
Ul positioning
UL positioning is achieved by measuring SRS transmitted by the terminal device to the access network device, and the positioning method of UL positioning may be, for example, an uplink arrival time difference positioning method (uplink time difference of arrival, UL-TDoA) and an uplink arrival angle positioning method (uplink angle of arriva, UL-AoA). UL-TDoA, which allows the access network device to measure the uplink relative arrival time of the SRS and report the measurement result to the positioning function network element. And the access network equipment measures the arrival angle according to the wave beam of the terminal equipment and reports the measurement result to the network element with the positioning function.
Dl positioning
The DL positioning is implemented by measuring PRS sent by the access network device to the terminal device, and the positioning method of DL positioning may be, for example, a downlink arrival time difference positioning method (downlink time difference of arrival, DL-TDoA) or a downlink angle positioning method (DL-AoD). And the DL-TDoA, the terminal equipment executes the time difference measurement of the downlink reference signal sent by the access network equipment, and reports the measurement result to the positioning function network element. DL-AoD, the terminal device measures the received power of the downlink reference signal of the PRS, determines an angle-of-departure (AoD) according to the beam position of the received PRS, and reports the measurement result including the AoD to the positioning function network element, which uses the AoD to estimate the position of the terminal device.
Uu port locating procedure
Uu port location may be triggered by a location request. Current location requests can be divided into three types: (1) A mobile initial location request (mobile originated location request, MO-LR) being a location request sent by a terminal device to a serving public land mobile network (public land mobile network, PLMN); (2) A mobile terminated location request (mobile terminated location request, MT-LR) being a location request initiated by a location services (LCS) client, an internal or external application function (Application Function, AF) to the PLMN; (3) Network induced location requests (network induced location request, NI-LR), location requests initiated for certain policing services (e.g., emergency calls for terminal devices) for the service access and mobility management functions (access and mobility management function, AMF) of the terminal devices.
Taking MO-LR as an example, the following describes the Uu port location procedure. Fig. 2 is a schematic diagram of a Uu port positioning process, where network elements involved in the process include three parts, namely a terminal device, an access network device, and a core network device, where the core network device includes an AMF and an LMF. The flow shown in fig. 2 may include, but is not limited to, the following steps:
S201, the terminal equipment triggers a service request.
When the terminal device is in a connection management IDLE (connection management-IDLE, CM-IDLE) state, the terminal device triggers a service request to establish a signaling connection with the AMF.
S202, the terminal equipment sends MO-LR to the AMF.
The MO-LR may be carried in a UL non-access-stratum (NAS) transport (transport) message, among other things. The NAS message sent by the terminal device may be directly transmitted to the AMF. Alternatively, the MO-LR may comprise an LPP location message, which may comprise the type of location request, e.g. requesting to estimate the location information of the terminal equipment, or requesting to estimate the location information of the terminal equipment and send the location information of the terminal equipment to the LCS client or application function (application function, AF), or requesting positioning assistance data, etc. Further, when MO-LR includes location information of the request estimation terminal device, or requests estimation terminal device and transmits the location information of the terminal device to LCS client or AF, MO-LR may further include location related quality of service (quality of Service, qoS) requirement information, which may include, for example, location accuracy, response time, LCS QoS class, etc. The location related QoS requirement information may also be described as LCS QoS requirement information. Positioning accuracy can be classified into horizontal accuracy and vertical accuracy. Response times can be categorized as no delay, low delay, and delay tolerance. LCS QoS classes define the degree of dependence of location services and other QoS parameters (e.g. accuracy). LCS QoS Class is classified into best effort Class (Best effort Class) and deterministic Class (assuredly Class). The best effort class defines a looser QoS requirement, i.e. if the currently estimated position fails to meet other QoS requirement information (e.g. positioning accuracy, etc.), the positioning estimation result can still be fed back to the positioning requesting end. If the estimated position is not available, an Error is fed back. Determining the level defines the most stringent accuracy requirements that a location request can meet. That is, if the currently estimated position fails to meet other QoS requirement information, the position estimate result will be discarded.
S203, the AMF selects LMF.
The AMF selects the appropriate LMF based on local configuration information or other information, which may be QoS requirement information, for example.
S204, the AMF sends a positioning request message to the LMF.
The Location request message sent by the AMF to the LMF may be, for example, a determine Location request (nlmf_location_ Determi neLocation Request) message. The location request message may include an LCS related identifier, a current serving cell identity, a client type, whether to request estimation of location information of the terminal device, whether to request transmission of location assistance data, etc.
S205, positioning a terminal device (UE).
Locating a terminal device may be described as locating the terminal device, or determining location information of the terminal device, etc. If the terminal device requests to estimate its location information, the LMF may initiate a location procedure to the terminal device, for example, the location procedure may include an interaction procedure of location capability of the terminal device, a procedure of configuring location assistance information, a location measurement procedure, reporting a location estimation result, and so on, so as to obtain the location information of the terminal device.
S206, the LMF sends positioning information to the AMF.
In case of obtaining a Location estimation result satisfying LCS QoS requirement information, the LMF sends Location information to the AMF, for example by determining a Location response (nlmf_location_ DetermineLocation Response) message, i.e. the Location information is carried in the nlmf_location_ DetermineLocation Response message. The location information of the terminal equipment satisfying the LCS QoS requirement obtained by step S205 may be included in the location message.
S207, the AMF sends positioning information to the terminal equipment.
The AMF transmits a location estimation result satisfying LCS QoS requirement information to the terminal device through Downlink (DL) NAS transport (MO-LR Response) information.
LPP protocol
The step S205 described above involves a signaling interaction between the terminal device and the LMF, and a signaling interaction between the access network device and the LMF. The signaling between the terminal equipment and the LMF mainly enables the LMF to obtain the capability of the terminal equipment, configures positioning auxiliary information for the terminal equipment, requests positioning measurement and obtains a positioning estimation result. Information interaction between the terminal equipment and the LMF can be performed through an LPP protocol. The protocol stack diagram involved in the interaction between the terminal device and the LMF is shown in fig. 3, the air interface between the terminal device and the next generation radio access network (next generation radio access network, NG-RAN) may be an NR-Uu interface or an LTE-Uu interface, the air interface between the NG-RAN and the AMF may be an NG-C interface, and the air interface between the AMF and the LMF may be an NL1 interface. Specifically, the protocol stack of the terminal device at the Uu port sequentially includes, from top to bottom: LPP, NAS, radio resource control (radio resource control, RRC), service data adaptation protocol (Service Data Adaptation Protocol, SDAP), packet data convergence protocol (packet data convergence protocol, PDCP), radio link control (radio link control, RLC), medium access control (medium access control, MAC), physical layer (PHY), wherein SDAP, PDCP, RLC, MAC layer is referred to as layer 2 protocol, abbreviated L2 protocol, and physical layer protocol is referred to as layer 1 protocol, abbreviated L1 protocol. Wherein, the peer protocol layer of LPP is located in LMF, the peer protocol layer of NAS is located in AMF, the peer protocol layer of other protocol layers is located in NG RAN. The protocol stack of the NG-RAN on the Uu port sequentially comprises the following steps from top to bottom: RRC, SDAP, PDCP, RLC, MAC, PHY, the peer protocol layers of these protocol layers are located at the terminal device. The protocol stack of the NG-RAN on the NG-C port sequentially comprises the following steps from top to bottom: NG interface application protocol (NG application protocol, NGAP), stream control transmission protocol (stream control transmission protocol, SCTP), internetworking protocol (internet protocol, IP), L2, L1, the peer protocol layers of these protocol layers all reside in the AMF. The protocol stack of the AMF on the NG-C port sequentially comprises the following steps from top to bottom: NAS, NGAP, SCTP, IP, L2, L1. Wherein, the peer protocol layer of NAS is located in terminal equipment, and the peer protocol layer of other protocol layers is located in NG RAN. The protocol stack of the AMF at the NL1 port sequentially comprises the following steps from top to bottom: hypertext transfer protocol 2.0 (hyper text transfer protocol, HTTP 2.0), transport layer security (transport layer security, TLS), transmission control protocol (transmission control protocol, TCP), IP, L2, L1, the peer protocol layers of these protocol layers all reside at the LMF. The protocol stack of the LMF at the NL1 port sequentially comprises the following steps from top to bottom: LPP, HTTP2.0, TLS, TCP, IP, L2, L1. Wherein, the peer-to-peer protocol layer of the LPP is located in the terminal equipment, and the peer-to-peer protocol layers of other protocol layers are located in the AMF.
Wherein, a Relay (Relay) function is also provided at the uppermost layer of the NG RAN node and the AMF, which means that the signaling of the upper layer can be transmitted, for example, the NAS signaling of the upper layer can be transmitted at the NG RAN node. LPP signaling may be transparently passed at the AMF node.
Further, the interaction of the positioning capability, the interaction of the positioning auxiliary information and the interaction of the positioning measurement information between the terminal device and the LMF may be carried through LPP signaling, and the LPP signaling interaction flow between the terminal device and the LMF is shown in fig. 4, and includes, but is not limited to, the following steps:
s401, the LMF sends an LPP request capability (LPP request capabilities) message to the terminal device.
S402, the terminal device sends an LPP provisioning capability (LPP provide capabilities) message to the LMF.
The terminal device provides location capability to the LMF in response to the LPP request capability message, and transmits the LPP provide capability message through LPP signaling. Wherein the positioning capability provided by the terminal device to the LMF includes one or more of: the capability of different positioning methods supported by the terminal device (for example DL-AoD), the capability of the terminal device to support different positioning modes (positioning modes such as positioning based on UE (i.e. UE does positioning solution by itself) or positioning assisted by UE (i.e. positioning solution by LMF)), PRS resource capability supported by the terminal device, measurement capability supported by the terminal device, quasi co-location (QCL) processing capability of the terminal device, and capability of whether the terminal device supports periodic reporting, etc.
S403, the LMF transmits LPP provision assistance data to the terminal device (LPP provide assistance data).
The LMF may send corresponding assistance data according to the capabilities of the terminal device indicated in the LPP provisioning capability message, which assistance data may for example comprise configuration of PRS, positioning calculation assistance information, assistance information adapted for a specific positioning method, which may for example be assistance information of a global navigation satellite system (global navigation satellite system, GNSS). The assistance data may also be referred to as positioning assistance information.
S404, the LMF transmits an LPP request location information (LPP request location information) message to the terminal device.
The LPP request location information message may be used for the LMF to request the terminal device to perform positioning measurement, or perform positioning estimation according to the positioning measurement result.
S405, the terminal device obtains location information.
The terminal device may use the assistance data received in step S403 to make positioning measurements or positioning estimates to obtain location information.
S406, the terminal device transmits LPP provided location information to the LMF (LPP provide location information).
The LPP may provide the location information, including reporting the location measurement result, or reporting the location estimation result.
NRPPa protocol
Information interaction can be performed between the access network equipment and the LMF through an NRPPa protocol. The interaction of the positioning auxiliary information, the interaction of the positioning information, the interaction of the measurement information and the interaction of the transmission receiving point (transmission and reception point, TRP) information between the access network device and the LMF can be carried through NRPPa signaling, and the NRPPa signaling interaction flow between the access network device and the LMF is shown in fig. 5, and includes, but is not limited to, the following steps:
s501, the LMF sends an NRPPa procedure request (NRPPa procedural request) message to the access network device.
The LMF initiates an information interaction procedure with the access network device by sending an NRPPa procedure request message to the access network device.
S502, the access network device sends an NRPPa procedure response (NRPPa procedural response) message to the LMF.
The access network device responds with an NRPPa procedure response message, which may include positioning related information.
6. Based on terminal equipment positioning (UE-based) mode and terminal equipment assisted positioning (UE-based) mode
The positioning mode based on the terminal equipment refers to that the terminal equipment performs measurement and calculates own position information. The auxiliary positioning mode of the terminal equipment is that the terminal equipment performs measurement and sends the measurement result to the LMF, and the LMF performs positioning calculation.
2. SL port positioning
SL port positioning refers to positioning achieved by positioning reference signals between terminal apparatuses transmitted through the SL port, for example, positioning achieved using positioning reference signals between terminal apparatus 1 and terminal apparatus 2. SL port positioning may also be described as side link positioning, secondary link positioning, or pass-through link positioning, among others.
Aiming at the fields of Internet of vehicles (vihicle to everything, V2X), public safety, industrial Internet (Industrial Internet of Things, IIoT) and the like, the positioning of an SL port is provided, and the positioning is realized through a positioning reference signal sent by the SL port. The positioning reference signals between the terminal devices may be called SL-PRS or SPRS, etc., and as the standards evolve, the positioning reference signals between the terminal devices may be referred to by other names. The positioning reference signal between the terminal equipment and the terminal equipment takes SPRS as an example.
The specific implementation process of SL port positioning is not limited in the present application, for example, based on the system architecture shown in fig. 1, the first terminal device 101 may send an SPRS to the second terminal device 102, after the second terminal device 102 receives the SPRS sent by the first terminal device 101, measure the SPRS, and send a measurement result obtained by the measurement to the first terminal device 101, and the first terminal device 101 calculates the measurement result to obtain location information of the first terminal device 101. For another example, the first terminal device 101 sends the SPRS to the second terminal device 102, and the second terminal device 102 measures the SPRS to obtain the location information of the first terminal device, and feeds back the location information of the first terminal device 101 to the first terminal device 101.
The positioning method provided by the embodiment of the application is explained below.
Fig. 6 is a flow chart of a positioning method according to an embodiment of the present application, which may include, but is not limited to, the following steps:
s601, the LMF sends indication information to the first terminal equipment. Correspondingly, the first terminal equipment receives the indication information.
The first terminal device may be a terminal device that initiates a positioning request in a communication system, or may be a terminal device for which a positioning request initiated by a network is directed. The first terminal device may be mobile, e.g. an in-vehicle device or the like; the first terminal device may also be fixed, for example an intelligent device in the field of internet of things or the like. The LMF may send the indication information to the first terminal device through the access network device and the AMF, and the indication information may be directly transmitted to the first terminal device without processing at the access network device and the AMF, where in this case, the indication information may be carried in a positioning signaling sent by the LMF to the first terminal device, where the positioning signaling may be LPP signaling, for example. Specifically, the indication information may be carried by an LPP request location information message sent by the LMF to the first terminal device, or may be carried by an LPP request capability message sent by the LMF to the first terminal device, or may provide auxiliary data carrying by the LPP sent by the LMF to the first terminal device. In addition, the LMF may send the indication information directly to the access network device, the indication information being carried in a positioning signaling sent to the access network device, which may be NRPPa signaling, for example. Specifically, the positioning information may be carried by NRPPa request location information sent by the LMF to the access network device, or may be carried by NRPPa positioning information request sent by the LMF to the access network device, or may be carried by NRPPa measurement request sent by the LMF to the access network device, or may be carried by NRPPa positioning activation request sent by the LMF to the access network device, or may be carried by NRPPa prs configuration request sent by the LMF to the access network device, or may be carried by NRPPa measurement pre-configuration request sent by the LMF to the access network device. The access network device processes the indication information to a certain extent and then sends the indication information to the first terminal device through an RRC message or an MAC CE. It will be understood that the processing of the access network device does not change the role of the indication information sent by the LMF, so that the information for indicating that the first terminal device starts hybrid positioning is considered as indication information in the present application, and the information for indicating that the first terminal device starts hybrid positioning may have different forms on different links due to different links between different network elements, but any form of information for indicating that the first terminal device starts hybrid positioning may be considered as indication information in the present application.
The indication information may be used to instruct the first terminal device to turn on hybrid positioning. Hybrid positioning refers to positioning combining SL port positioning and Uu port positioning. In the present application, the SL port positioning is referred to as a first positioning, and the Uu port positioning is referred to as a second positioning. Wherein the first positioning corresponds to a positioning achieved using a first link reference signal, which refers to a secondary link positioning reference signal, e.g. SPRS, between the first terminal device and the second terminal device. It should be noted that, SPRS refers to an auxiliary link positioning reference signal sent between terminal devices, for convenience of writing, in this specification, SPRS is used to refer to an auxiliary link positioning reference signal, and other names, such as forms of SL-PRS, SL-SRS, slplrs, etc., are not excluded in the following. The second terminal device is a terminal device that can communicate with the first terminal device, for example, a terminal device that is close to the first terminal device, or the like. Accordingly, the second positioning corresponds to a positioning achieved using a second link reference signal, which refers to a Uu link positioning reference signal between the first terminal device and the access network device, which may be an uplink positioning reference signal between the first terminal device and the access network device, such as SRS; but also downlink positioning reference signals, e.g. PRSs, between the first terminal device and the access network device. The access network device provides a wireless communication function for the first terminal device and establishes communication connection with the first terminal device.
Alternatively, the indication information may indicate one or more of the following:
(1) The first positioning is started. If the first terminal device is performing the second positioning, but the second positioning estimation result (i.e., the second positioning estimation result is a positioning result obtained by positioning the first terminal device by using the second positioning) and/or the second positioning measurement result corresponding to the second positioning cannot meet the high-precision positioning requirement, at this time, the indication information may indicate that the first terminal device starts the first positioning. The second positioning measurement result may be obtained by measuring the second link reference signal by the access network device or the first terminal device, and the second positioning estimation result may be obtained by resolving the second positioning measurement result by the first terminal device or the LMF. Optionally, the LMF may determine, when obtaining the second positioning estimation result, whether the second positioning estimation result meets a high-precision positioning requirement in the positioning requirement information.
(2) A first link reference signal is transmitted. If the first terminal device has already started the first positioning before the LMF sends the indication information, the indication information sent by the LMF may instruct the first terminal device to send the first link reference signal. Optionally, the indication information indicates the first terminal device to send the first link reference signal to the second terminal device. Or the first terminal equipment receives the indication information and sends a first link reference signal to the surrounding terminal equipment. The second terminal device receives the first link reference signal from the first terminal device, and may measure the first link reference signal to obtain a first positioning estimation result (i.e., the first positioning estimation result is a positioning result obtained by positioning the first terminal device by using the first positioning) and/or a first positioning measurement result. The first positioning measurement result may be obtained by measuring the first link reference signal by the second terminal device. Further, if the second terminal device can calculate the first positioning measurement result, a first positioning estimation result can be obtained.
(3) The first link reference signal is measured. Alternatively, the first terminal device may receive the first link reference signal sent by the second terminal device through the SL port, and at this time, the indication information may instruct the first terminal device to measure the first link reference signal. The first terminal equipment receives the indication information and measures the first link reference signal to obtain a first positioning estimation result and/or a first positioning measurement result. The first positioning measurement result may be obtained by measuring the first link reference signal by the first terminal device. Further, if the first terminal device can calculate the first positioning measurement result, a first positioning estimation result can be obtained.
(4) And reporting the first positioning information. If the first terminal device has obtained the first positioning information corresponding to the first positioning, the indication information may instruct the first terminal device to report the first positioning information, where the first positioning information includes a first positioning estimation result and/or a first positioning measurement result. The first positioning measurement result may be obtained by measuring the first link reference signal by the first terminal device, and the first positioning estimation result may be obtained by calculating the first positioning measurement result by the first terminal device. Alternatively, the first positioning measurement result may be received and transmitted by the second terminal device, or the first positioning estimation result may be transmitted by the second terminal device.
(5) And reporting the positioning estimation result of the first terminal equipment. The positioning estimation result of the first terminal equipment is obtained by the first terminal equipment according to the first positioning estimation result and the second positioning estimation result, wherein the first positioning estimation result is obtained by adopting first positioning to position the first terminal equipment, and the second positioning estimation result is obtained by adopting second positioning to position the first terminal equipment. The indication information indicates the first terminal equipment to directly report the positioning estimation result, so that the LMF can more quickly determine the position information of the first terminal equipment.
It should be noted that the indication information may indicate one or more of the above (1) to (5), and the terminal device performs a corresponding operation according to the indication information. For example, the indication information indicates the above (1) and (2), and the terminal device starts the first positioning and transmits the first link reference signal according to the indication information.
In one possible implementation manner, if the first terminal device has already started hybrid positioning and the second positioning estimation result and/or the second positioning measurement result obtained by the first terminal device through the second positioning meet the high-precision positioning requirement, the indication information may also instruct the first terminal device to close hybrid positioning, that is, close the first positioning, and keep the second positioning in an on state, so as to save resources and avoid resource waste. The application scenario corresponding to the implementation manner may be, for example, that the channel quality of the Uu link corresponding to the second positioning is better, or that the number of direct-view (LoS) paths between the first terminal device and the access network device is increased, or that the current first terminal device does not need a function of auxiliary link positioning. Optionally, the indication information indicating that the first terminal device turns off the hybrid positioning may indicate one or more of the following: (1) closing the first positioning; (2) stopping sending the first link reference signal; (3) stopping measuring the first link reference signal; (4) stopping reporting the first positioning information; (5) and stopping reporting the positioning estimation result.
In addition, the indication information may be carried in a positioning signaling sent by the LMF to the first terminal device, and the positioning signaling may be, for example, LPP signaling. Specifically, the indication information may be carried by an LPP request location information message sent by the LMF to the first terminal device, or may be carried by an LPP request capability message sent by the LMF to the first terminal device, or may provide auxiliary data carrying by the LPP sent by the LMF to the first terminal device.
S602, the first terminal equipment starts hybrid positioning according to the indication information.
Optionally, the first terminal device starts hybrid positioning according to the indication information, which specifically may include one or more of the following:
(1) The first positioning is started. And under the condition that the indication information indicates that the first positioning is started, the first terminal equipment starts the first positioning. After the first terminal device starts the first positioning, optionally, the first terminal device may send the first link reference signal, or measure the first link reference signal. Optionally, the first terminal device may further report the first positioning information, or report a positioning estimation result of the first terminal device.
(2) A first link reference signal is transmitted. The first terminal device transmits the first link reference signal in case the indication information indicates transmission of the first link reference signal. Alternatively, the first terminal device may send the first link reference signal to the second terminal device, or send the first link reference signal to the terminal devices around it, so that the second terminal device or the terminal devices around it can measure the first link reference signal. After the first terminal device sends the first link reference signal, optionally, the first terminal device may receive a first positioning measurement result of the first link reference signal or a first positioning estimation result of the first link reference signal fed back from the second terminal device or surrounding terminal devices. Optionally, the first terminal device may further report the first positioning information, or report a positioning estimation result of the first terminal device.
(3) The first link reference signal is measured. In case the indication information indicates that the first link reference signal is measured, the first terminal device measures the first link reference signal to obtain a first positioning measurement result. Further, if the first terminal device can calculate the first positioning measurement result, the first positioning estimation result is obtained for the first positioning measurement result. Optionally, the first terminal device may further report the first positioning information, or report a positioning estimation result of the first terminal device.
(4) And reporting the first positioning information. And under the condition that the indication information indicates the first positioning information to be reported, the first terminal equipment reports the first positioning information. The first positioning information may be measured or resolved by the first terminal device or may be received from other terminal devices (e.g., the second terminal device). The first terminal device may report the first positioning information to the LMF through the access network device. Optionally, the first terminal device further reports a positioning estimation result.
(5) And reporting the positioning estimation result. And under the condition that the indication information indicates reporting of the positioning estimation result, the first terminal equipment reports the positioning estimation result. The positioning estimation result is obtained by the first terminal equipment according to the first positioning estimation result and the second positioning estimation result, namely, the positioning estimation result corresponding to the hybrid positioning. Thus, the LMF can determine the position information of the first terminal device more conveniently.
Further, the first terminal device calculates the first positioning measurement result to obtain a first positioning estimation result under the condition of supporting to calculate the first positioning measurement result. And/or under the condition that the first terminal equipment supports to calculate the second positioning measurement result, calculating the second positioning measurement result to obtain a second positioning estimation result. Therefore, the first terminal equipment can obtain the positioning estimation result according to the first positioning estimation result and the second positioning estimation result, and send the positioning estimation result to the LMF. Optionally, the first terminal device may calculate the first positioning measurement result according to the configuration information of the first link reference signal to obtain a first positioning estimation result; and the second positioning measurement result can be calculated according to the configuration information of the second link reference signal to obtain a second positioning estimation result. The configuration information of the first link reference signal refers to all information configured by the access network device for the first link reference signal or all information configured by the access network device for the first link reference signal determined by the first terminal device, and the configuration information of the second link reference signal refers to all information configured by the access network device for the second link reference signal.
S603, the LMF determines the position information of the first terminal equipment, wherein the position information of the first terminal equipment is determined based on the hybrid positioning.
Step S603 may be implemented in the following manner 1 or manner 2 when it is specifically implemented.
Mode 1, LMF acquires location information of a first terminal device from the first terminal device.
In mode 1, the first terminal device determines a positioning estimation result according to the first positioning estimation result and the second positioning estimation result, and sends the positioning estimation result to the positioning function network element. If the LMF indicates the first terminal device to report the location estimation result, the LMF may receive the location estimation result from the first terminal device. At this time, in step S603, the LMF directly determines the location estimation result from the first terminal device as the location information of the first terminal device.
Mode 2, LMF determines location information of the first terminal device according to the first location information and the second location information. The first positioning information comprises a first positioning estimation result and/or a first positioning measurement result, and the second positioning information comprises a second positioning estimation result and/or a second positioning measurement result.
Alternatively, the second positioning information may be a second positioning measurement result, that is, the second positioning estimation result is finally determined by the LMF according to the measurement result reported by the access network device and/or the measurement result reported by the terminal device. If the second positioning information is the second positioning measurement result, the LMF may further calculate the second positioning measurement result according to the configuration information of the second link reference signal, to obtain a second positioning estimation result. The second positioning information may also be a second positioning estimation result, i.e. the second positioning estimation result is solved by the first terminal device according to the second positioning measurement result and the second positioning reference signal. The first positioning information may be a first positioning measurement result and/or a first positioning estimation result, and the first positioning information may be transmitted to the LMF by the first terminal device. Specifically, if the LMF indicates that the first terminal device starts the first positioning, the first terminal device may obtain the first positioning information and send the first positioning information to the LMF; if the LMF indicates the first terminal device to send the first link reference signal, the first terminal device may send the first link reference signal to the second terminal or the terminal devices around the second terminal device, and the second terminal device or the terminal devices around the second terminal device may measure the first link reference signal to obtain a first positioning measurement result, and then feed back the first positioning measurement result to the first terminal device. Or the first terminal equipment directly measures the first link reference signals sent by surrounding terminal equipment to obtain a first positioning measurement result. Then the first terminal equipment sends the first positioning measurement result to the LMF; if the LMF indicates the first terminal equipment to measure the first link reference signal, the first terminal equipment can obtain a first positioning measurement result, and further if the first terminal equipment can calculate the first positioning measurement result, a first positioning estimation result can be obtained, and then the first positioning estimation result is sent to the LMF; if the LMF indicates the first terminal device to report the first positioning information, the first terminal device may send the acquired first positioning information to the LMF.
Mode 2 includes four cases:
in case 1, the first positioning information includes a first positioning estimation result, and the second positioning information includes a second positioning estimation result. Specifically, the LMF may average the first positioning estimation result and the second positioning estimation result to obtain the location information of the first terminal device. For example, assume that the first positioning estimation result corresponds to a coordinate (x 1 ,y 1 ,z 1 ) The second positioning estimation result corresponds to the coordinates (x 2 ,y 2 ,z 2 ) The position information of the first terminal device may be the coordinate corresponding to the first positioning estimation result, and the coordinate obtained by averaging the coordinate corresponding to the second positioning estimation result
Case 2, the first positioning information includes a first positioning measurement result, and the second positioning information includes a second positioning measurement result. Optionally, if the LMF receives the second configuration information of the first link reference signal and the configuration information of the second link reference signal sent by the access network device, the LMF may calculate the first positioning measurement result according to the second configuration information to obtain a first positioning estimation result, may calculate the second positioning measurement result according to the configuration information of the second link reference signal to obtain a second positioning estimation result, and then determine the position information of the first terminal device according to the first positioning estimation result and the second positioning estimation result. The process of determining the location information of the first terminal device according to the first location estimation result and the second location estimation result may refer to case 1. The second configuration information refers to all information configured by the access network device for the first link reference signal, and the configuration information of the second link reference signal refers to all information configured by the access network device for the second link reference signal.
In case 3, the first positioning information includes a first positioning measurement result, and the second positioning information includes a second positioning estimation result. Optionally, if the LMF receives the second configuration information of the first link reference signal sent by the access network device, the LMF calculates the first positioning measurement result according to the second configuration information to obtain a first positioning estimation result, and then determines the position information of the first terminal device according to the first positioning estimation result and the second positioning estimation result. The process of determining the location information of the first terminal device according to the first location estimation result and the second location estimation result may refer to case 1.
In case 4, the first positioning information includes a first positioning estimation result, and the second positioning information includes a second positioning measurement result. Optionally, if the LMF receives the configuration information of the second link reference signal sent by the access network device, the second positioning measurement result is resolved according to the configuration information of the second link reference signal to obtain a second positioning estimation result, and then the position information of the first terminal device is determined according to the first positioning estimation result and the second positioning estimation result. The process of determining the location information of the first terminal device according to the first location estimation result and the second location estimation result may refer to case 1.
In case 2 and case 3, the method further comprises: the access network device sends second configuration information of the first link reference signal to the LMF. Correspondingly, the LMF receives the second configuration information of the first link reference signal sent by the access network device, where the second configuration information refers to all configuration information of the first link reference signal, and is more comprehensive than the first configuration information related to positioning accuracy of the first link reference signal. After the LMF receives the second configuration information, according to the second configuration information, the LMF can calculate the first positioning measurement result to obtain a first positioning estimation result.
The signaling transmitted between the first terminal device and the LMF is transmitted through the access network device. For example, the LMF sends indication information to the first terminal device through the access network device, and for example, the first terminal device reports the first positioning information to the LMF through the access network device.
In the embodiment shown in fig. 6, the LMF instructs the first terminal device to start hybrid positioning by sending instruction information to the first terminal device, that is, adds SL port positioning when Uu port positioning cannot meet positioning requirements or cannot perform positioning, so as to achieve the purpose of improving positioning accuracy.
Referring to fig. 7, in the above embodiment, step S601 may be implemented by the following steps when specifically implemented:
and S701, the LMF sends indication information to the first terminal equipment according to one or more of the positioning requirement information, the positioning configuration information and the second positioning information. I.e. decides to instruct the first terminal device to start hybrid positioning.
The positioning requirement information is used for indicating the positioning requirement of the first terminal equipment. The location requirement information may also be described as location related QoS requirement information or LCS QoS requirement information, etc. The positioning requirement information can be carried in a positioning request initiated by the first terminal device or in a positioning request initiated by the network for the first terminal device. The positioning requirements may include one or more of the following: positioning accuracy, response time, LCS QoS class, etc. The specific description of the positioning accuracy, the response time and the LCS QoS level can be referred to the description of the corresponding parts of step S202, and will not be repeated here.
The positioning configuration information is used to indicate information related to positioning of the first terminal device, and the specific content included in the positioning configuration information will be explained in detail in step S700 below. The positioning configuration information originates from the access network device, i.e. the access network device sends the positioning configuration information to the LMF.
The second positioning information is positioning information obtained by positioning the first terminal device by adopting second positioning, and may include a second positioning estimation result and/or a second positioning measurement result. The second positioning measurement result may be obtained by measuring the second link reference signal by the access network device or the first terminal device, and the second positioning estimation result may be obtained by resolving the second positioning measurement result by the first terminal device or the LMF.
It is appreciated that the LMF integrates one or more of the positioning requirement information, the positioning configuration information, and the second positioning information to determine whether to instruct the first terminal device to turn on hybrid positioning. It should be noted that these three kinds of information are used as examples, and for example, other information may be considered in combination to determine whether to instruct the first terminal device to start the hybrid positioning.
For example, the LMF estimates the positioning accuracy that can be achieved by the first positioning according to the positioning configuration information, and if the second positioning information currently obtained cannot meet the positioning accuracy required by the positioning requirement information, and the positioning accuracy that can be achieved by the first positioning estimated by the LMF is beneficial to improving the positioning accuracy of the second positioning, the LMF may instruct the first terminal device to start hybrid positioning. For convenience of understanding, a specific example will be described below, where it is assumed that the positioning accuracy required by the positioning requirement information is 3 meters, the positioning accuracy corresponding to the second positioning information is 10 meters, the LMF estimates that the positioning accuracy achievable by the first positioning is 2 meters according to the positioning configuration information, where the positioning accuracy achievable by the first positioning is higher than the positioning accuracy of the second positioning, that is, it indicates that starting hybrid positioning is beneficial to improving the positioning accuracy, and then the LMF may instruct the first terminal to start hybrid positioning, otherwise, if the LMF estimates that the positioning accuracy achievable by the first positioning is 12 meters according to the positioning configuration information, where the positioning accuracy achievable by the first positioning is lower than the positioning accuracy of the second positioning, that is, it indicates that starting hybrid positioning is not effective to improve the positioning accuracy of the second positioning, and then the LMF will no longer instruct the first terminal to start hybrid positioning.
The step S701 further includes: step S700, the access network device sends positioning configuration information to the LMF. Accordingly, the LMF receives the location configuration information from the access network device.
In the embodiment of the application, the access network device can send positioning configuration information to the LMF, wherein the positioning configuration information is used for indicating the information related to positioning of the first terminal device so as to assist the LMF to decide whether to send the indication information to the first terminal device to indicate to start hybrid positioning. Optionally, the positioning configuration information may include one or more of:
(1) Capability information. The capability information is used to indicate the capability of the first terminal device, for example, whether the first terminal device supports the capability of the first positioning, i.e. whether the first terminal device has the capability to achieve positioning using SPRS. The first terminal device may send the capability information to the access network device so that the access network device informs the LMF of the capability information.
(2) First configuration information of the first link reference signal. The first configuration information refers to configuration information related to positioning accuracy among configuration information of the first link reference signal. It may be understood that the access network device sends configuration information affecting positioning accuracy in the configuration information of the first link reference signal to the LMF, so as to assist the LMF in deciding whether to send indication information to the first terminal device to indicate to start hybrid positioning. The first configuration information may include one or more of the following: the transmission bandwidth of the first link reference signal, the resource type (periodic, semi-static or non-periodic) of the first link reference signal, the transmission period of the first link reference signal, the number of times of transmission of the first link reference signal, the number of resources of the first link reference signal, and the number of resource sets of the first link reference signal.
In one implementation, the access network device may determine the first configuration information based on the positioning requirement information. Specifically, if the positioning accuracy requirement included in the positioning requirement information is high, the access network device may configure a larger transmission bandwidth of the first link reference signal, or configure a larger number of resources and a larger number of resource sets of the first link reference signal.
(3) Reference accuracy of the first positioning. The reference accuracy of the first location refers to the location accuracy of the first location estimated by the access network device. In one implementation, the access network device may estimate a positioning accuracy of the first positioning based on the first configuration information of the first link reference signal.
(4) And (5) referring to the position information. The reference location information refers to location information of a fixed location device, such as a Road Side Unit (RSU).
(5) Identification information of the first terminal device. The identification information of the first terminal device may be a user hidden identifier (subscription concealed identifier, sui) or a globally unique temporary identification (globally unique temporary identifier, GUTI) of the first terminal device.
(6) Positioning state indication information. The positioning state indication information is used for indicating whether the first terminal equipment is currently performing first positioning.
In one possible implementation, the positioning configuration information may be carried in positioning signaling sent by the access network device to the LMF, for example NRPPa signaling. Optionally, the positioning configuration information may be carried by an NRPPa positioning information response (position information response) message sent by the access network device to the LMF, or may be carried by an NRPPa positioning information update (position information update) message sent by the access network device to the LMF, or may be carried by an NRPPa auxiliary information feedback (assistance information feedback) message sent by the access network device to the LMF, or may be carried by an NRPPa measurement response (measurement response) message sent by the access network device, or may be carried by an NRPPa measurement report (measurement report) message sent by the access network device, which is not limited in this application.
In step S700, the access network device transmits positioning configuration information to the LMF to assist the LMF in determining whether to transmit indication information to the first terminal device.
Fig. 8 is a schematic structural diagram of a positioning device according to an embodiment of the application. As shown in fig. 8, the positioning device 80 includes a communication unit 801 and a processing unit 802.
In one implementation, the positioning device 80 is a positioning function network element or a device that matches a positioning function network element:
a communication unit 801, configured to send indication information to a first terminal device, where the indication information indicates that hybrid positioning is started, and the hybrid positioning is positioning combining the first positioning and the second positioning; the first positioning corresponds to positioning implemented using a first link reference signal, the first link reference signal being a positioning reference signal between the first terminal device and the second terminal device; the second positioning corresponds to positioning implemented using a second link reference signal, the second link reference signal being a positioning reference signal between the first terminal device and the access network device; a processing unit 802, configured to determine location information of the first terminal device, where the location information of the first terminal device is determined based on the hybrid positioning.
Optionally, the indication information indicates that the hybrid positioning is started, specifically the indication information indicates one or more of the following: opening the first positioning; transmitting the first link reference signal; measuring the first link reference signal; reporting first positioning information, wherein the first positioning information corresponds to first positioning, and the first positioning information comprises a first positioning estimation result and/or a first positioning measurement result; and reporting a positioning estimation result of the first terminal equipment, wherein the positioning estimation result is obtained according to a first positioning estimation result and a second positioning estimation result, the first positioning estimation result corresponds to the first positioning, and the second positioning estimation result corresponds to the second positioning.
Optionally, the communication unit 801 is further configured to receive first positioning information from the first terminal device; the processing unit 802 is specifically configured to determine location information of the first terminal device according to the first location information and the second location information; the second positioning information corresponds to a second positioning, the second positioning information comprising a second positioning estimation result and/or a second positioning measurement result.
Optionally, the communication unit 801 is further configured to receive a positioning estimation result from the first terminal device; the processing unit 802 is specifically configured to determine the positioning estimation result as the location information of the first terminal device.
Alternatively, the indication information may be carried in a positioning signaling sent to the first terminal device.
Optionally, the communication unit 801 is further configured to receive positioning configuration information from the access network device, where the positioning configuration information includes one or more of the following: capability information, first configuration information of a first link reference signal, reference accuracy of first positioning, reference position information, identification information of first terminal equipment and positioning state indication information; wherein the capability information indicates whether the first terminal device supports the first positioning; the reference precision of the first positioning is the positioning precision of the first positioning estimated by the access network equipment; the reference position information is the position information of the fixed position equipment; the first configuration information is configuration information related to positioning accuracy in the configuration information of the first link reference signal, and the first configuration information comprises one or more of the following: transmission bandwidth, resource type, transmission period, transmission times, number of resources and number of resource sets; the identification information of the first terminal device includes one or more of: user hidden identifier and globally unique temporary identifier; the positioning state indication information indicates whether the first terminal device is currently performing the first positioning.
Alternatively, the positioning configuration information may be carried in positioning signalling from the access network device.
Optionally, the processing unit 802 is specifically configured to send indication information to the first terminal device according to one or more of positioning requirement information, positioning configuration information, and second positioning information; the second positioning information corresponds to a second positioning, the second positioning information comprising a second positioning estimation result and/or a second positioning measurement result.
Optionally, the communication unit 801 is further configured to receive second configuration information of the first link reference signal from the access network device; the second configuration information is all configuration information of the first link reference signal; the processing unit 802 is further configured to calculate the first positioning measurement result according to the second configuration information if the first positioning information includes the first positioning measurement result, and obtain a first positioning estimation result.
In another implementation, the positioning device 80 is a first terminal device or a device that matches the first terminal device:
a communication unit 801, configured to receive indication information from a positioning function network element, where the indication information is used to indicate to start hybrid positioning, and the hybrid positioning is positioning combining the first positioning and the second positioning; the first positioning corresponds to positioning implemented using a first link reference signal, the first link reference signal being a positioning reference signal between the first terminal device and the second terminal device; the second positioning corresponds to positioning implemented using a second link reference signal, the second link reference signal being a positioning reference signal between the first terminal device and the access network device; the processing unit 802 is configured to turn on hybrid positioning according to the indication information.
Optionally, the processing unit 802 is specifically configured to perform one or more of the following: starting a first positioning; transmitting a first link reference signal to a second terminal device; measuring a first link reference signal; reporting first positioning information, wherein the first positioning information corresponds to first positioning, and the first positioning information comprises a first positioning estimation result and/or a first positioning measurement result; and reporting a positioning estimation result, wherein the positioning estimation result is obtained according to a first positioning estimation result and a second positioning estimation result, the first positioning estimation result corresponds to the first positioning, and the second positioning estimation result corresponds to the second positioning.
Alternatively, the indication information may be carried in positioning signaling from the positioning function network element.
In yet another implementation, the positioning device 80 is an access network device or a device that mates with an access network device:
a communication unit 801, configured to send positioning configuration information to a positioning function network element, where the positioning configuration information includes one or more of the following: capability information, first configuration information of a first link reference signal, reference accuracy of a first positioning, and reference position information; the first position corresponds to a position achieved using the first link reference signal; the first link reference signal is a positioning reference signal between the first terminal equipment and the second terminal equipment, identification information of the first terminal equipment and positioning state indication information; wherein the capability information indicates whether the first terminal device supports the first positioning; the reference precision of the first positioning is the positioning precision of the first positioning estimated by the access network equipment; the reference position information is the position information of the fixed position equipment; the first configuration information is configuration information related to positioning accuracy in the configuration information of the first link reference signal, and the first configuration information comprises one or more of the following: transmission bandwidth, resource type, transmission period, transmission times, number of resources and number of resource sets; the identification information of the first terminal device includes one or more of: user hidden identifier and globally unique temporary identifier; the positioning state indication information indicates whether the first terminal device is currently performing the first positioning.
Alternatively, the positioning configuration information may be carried in positioning signaling from the access network device.
Optionally, the communication unit 801 is further configured to send second configuration information of the first link reference signal to the positioning function network element; the second configuration information is all configuration information of the first link reference signal, and the second configuration information is used for resolving a first positioning measurement result, wherein the first positioning measurement result corresponds to the first positioning.
Referring to fig. 9, fig. 9 is a schematic diagram of another positioning device 90 according to an embodiment of the application. The positioning device 90 may include a transceiver 901 and a processor 902. Optionally, the positioning device may also include a memory 903. Wherein the transceiver 901, processor 902, memory 903 may be connected by a bus 904 or other means. The bus is shown in bold lines in fig. 9, and the manner in which other components are connected is merely illustrative and not limiting. The buses may be divided into address buses, data buses, control buses, etc. For ease of illustration, only one thick line is shown in fig. 9, but not only one bus or one type of bus.
The coupling in the embodiments of the present application is an indirect coupling or communication connection between devices, units, or modules, which may be in electrical, mechanical, or other forms for information interaction between the devices, units, or modules. The specific connection medium between the transceiver 901, the processor 902, and the memory 903 is not limited in the embodiments of the present application.
Memory 903 may include read only memory and random access memory and provides instructions and data to processor 902. A portion of memory 903 may also include non-volatile random access memory.
The processor 902 may be a central processing unit (Central Processing Unit, CPU), the processor 902 may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), field-programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor, but in the alternative, the processor 902 may be any conventional processor or the like.
In an alternative embodiment, memory 903 is used to store program instructions; a processor 902 for invoking program instructions stored in the memory 903 for performing the steps performed by the positioning function network element in the corresponding embodiment of fig. 6-7.
In another alternative embodiment, memory 903 is used to store program instructions; a processor 902 for invoking program instructions stored in memory 903 for performing the steps performed by the first terminal device in the corresponding embodiment of fig. 6-7.
In yet another alternative embodiment, memory 903 is used to store program instructions; a processor 902 for invoking program instructions stored in memory 903 for performing steps performed by the access network device in the corresponding embodiments of fig. 6-7.
In the embodiments of the present application, the methods provided by the embodiments of the present application can be implemented by running a computer program (including program code) capable of executing the steps involved in the above-described methods on a general-purpose computing device such as a computer, including a processing element such as a CPU, a random access storage medium (Random Access Memory, RAM), a Read-Only Memory (ROM), or the like, and a storage element. The computer program may be recorded on, for example, a computer-readable recording medium, and loaded into and run in the above-described computing device through the computer-readable recording medium.
Based on the same inventive concept, the principle and beneficial effects of the positioning device 90 provided in the embodiment of the present application are similar to those of the embodiment of fig. 6-7, and may be referred to as the principle and beneficial effects of implementation of the method, which are not described herein for brevity.
The positioning device may be, for example: a chip, or a chip module.
The embodiment of the application also provides a chip which can execute the relevant steps of the positioning function network element in the embodiment of the method. For example, the chip is used for: sending indication information to the first terminal equipment, wherein the indication information indicates to start hybrid positioning, and the hybrid positioning is positioning combining the first positioning and the second positioning; the first positioning corresponds to positioning implemented using a first link reference signal, the first link reference signal being a positioning reference signal between the first terminal device and the second terminal device; the second positioning corresponds to positioning implemented using a second link reference signal, the second link reference signal being a positioning reference signal between the first terminal device and the access network device; position information of the first terminal device is determined, the position information of the first terminal device being determined based on hybrid positioning.
In another implementation manner, the chip may perform the relevant steps of the first terminal device in the foregoing method embodiment. For example, the chip is used for: receiving indication information from a positioning function network element, wherein the indication information is used for indicating starting hybrid positioning, and the hybrid positioning is positioning combining a first positioning and a second positioning; the first positioning corresponds to positioning implemented using a first link reference signal, the first link reference signal being a positioning reference signal between the first terminal device and the second terminal device; the second positioning corresponds to positioning implemented using a second link reference signal, the second link reference signal being a positioning reference signal between the first terminal device and the access network device; and starting the hybrid positioning according to the indication information.
In yet another implementation, the chip may perform the relevant steps of the access network device in the foregoing method embodiment. For example, the chip is used for: transmitting positioning configuration information to a positioning function network element, wherein the positioning configuration information comprises one or more of the following: capability information, first configuration information of a first link reference signal, reference accuracy of a first positioning, and reference position information; the first position corresponds to a position achieved using the first link reference signal; the first link reference signal is a positioning reference signal between the first terminal equipment and the second terminal equipment, identification information of the first terminal equipment and positioning state indication information; wherein the capability information indicates whether the first terminal device supports the first positioning; the reference precision of the first positioning is the positioning precision of the first positioning estimated by the access network equipment; the reference position information is the position information of the fixed position equipment; the first configuration information is configuration information related to positioning accuracy in the configuration information of the first link reference signal, and the first configuration information comprises one or more of the following: transmission bandwidth, resource type, transmission period, transmission times, number of resources and number of resource sets; the identification information of the first terminal device includes one or more of: user hidden identifier and globally unique temporary identifier; the positioning state indication information indicates whether the first terminal device is currently performing the first positioning.
Referring to fig. 10, fig. 10 is a schematic structural diagram of a chip module according to an embodiment of the application. The chip module 100 may perform the steps related to the positioning device 80 in the foregoing method embodiment, where the chip module 100 includes: a communication interface 1001 and a chip 1002.
The communication interface is used for carrying out internal communication of the chip module or carrying out communication between the chip module and external equipment; the chip is used for realizing the function of the positioning device in the embodiment of the application, and particularly, the corresponding embodiment of fig. 6-7 is referred. Optionally, the chip module 100 may further include a memory module 1003 and a power module 1004. The storage module 1003 is used for storing data and instructions. The power module 1004 is used for providing power to the chip module.
For each device and product applied to or integrated in the chip module, each module included in the device and product may be implemented by hardware such as a circuit, and different modules may be located in the same component (e.g. a chip, a circuit module, etc.) of the chip module or different components, or at least some modules may be implemented by using a software program, where the software program runs on a processor integrated in the chip module, and the remaining (if any) modules may be implemented by hardware such as a circuit.
Embodiments of the present application also provide a computer readable storage medium having one or more instructions stored therein, the one or more instructions being adapted to be loaded by a processor and to perform the method provided by the above-described method embodiments.
The present application also provides a computer program product comprising a computer program or instructions which, when run on a computer, cause the computer to perform the method provided by the method embodiments described above.
With respect to each of the apparatuses and each of the modules/units included in the products described in the above embodiments, it may be a software module/unit, a hardware module/unit, or a software module/unit, and a hardware module/unit. For example, for each device or product applied to or integrated on a chip, each module/unit included in the device or product may be implemented in hardware such as a circuit, or at least part of the modules/units may be implemented in software program, where the software program runs on a processor integrated inside the chip, and the rest (if any) of the modules/units may be implemented in hardware such as a circuit; for each device and product applied to or integrated in the chip module, each module/unit contained in the device and product can be realized in a hardware manner such as a circuit, different modules/units can be located in the same component (such as a chip, a circuit module and the like) or different components of the chip module, or at least part of the modules/units can be realized in a software program, the software program runs on a processor integrated in the chip module, and the rest (if any) of the modules/units can be realized in a hardware manner such as a circuit; for each device, product, or application to or integrated with the terminal, each module/unit included in the device, product, or application may be implemented by using hardware such as a circuit, different modules/units may be located in the same component (for example, a chip, a circuit module, or the like) or different components in the terminal, or at least part of the modules/units may be implemented by using a software program, where the software program runs on a processor integrated inside the terminal, and the remaining (if any) part of the modules/units may be implemented by using hardware such as a circuit.
It should be noted that, for simplicity of description, the foregoing method embodiments are all expressed as a series of action combinations, but it should be understood by those skilled in the art that the present application is not limited by the order of action described, as some steps may be performed in other order or simultaneously according to the present application. Further, those skilled in the art will also appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily required for the present application.
The steps in the method of the embodiment of the application can be sequentially adjusted, combined and deleted according to actual needs.
The modules in the device of the embodiment of the application can be combined, divided and deleted according to actual needs.
Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of the above embodiments may be implemented by a program to instruct related hardware, the program may be stored in a computer readable storage medium, and the readable storage medium may include: flash disk, ROM, RAM, magnetic or optical disk, etc.
The foregoing disclosure is merely a preferred embodiment of the present application, but is not intended to limit the scope of the claims.

Claims (21)

1. A method of positioning, the method comprising:
transmitting indication information to a first terminal device, wherein the indication information indicates that mixed positioning is started, and the mixed positioning is combined with the first positioning and the second positioning; the first positioning corresponds to positioning implemented using a first link reference signal, the first link reference signal being a positioning reference signal between the first terminal device and a second terminal device; the second positioning corresponds to positioning implemented using a second link reference signal, the second link reference signal being a positioning reference signal between the first terminal device and an access network device;
and determining the position information of the first terminal equipment, wherein the position information of the first terminal equipment is determined based on the hybrid positioning.
2. The method according to claim 1, wherein the indication information indicates that the hybrid positioning is turned on, in particular the indication information indicates one or more of:
opening the first positioning;
transmitting the first link reference signal;
measuring the first link reference signal;
reporting first positioning information, wherein the first positioning information corresponds to the first positioning, and the first positioning information comprises a first positioning estimation result and/or a first positioning measurement result;
Reporting a positioning estimation result of the first terminal device, wherein the positioning estimation result is obtained according to a first positioning estimation result and a second positioning estimation result, the first positioning estimation result corresponds to the first positioning, and the second positioning estimation result corresponds to the second positioning.
3. The method of claim 2, wherein the method further comprises:
receiving the first positioning information from the first terminal device;
the determining the location information of the first terminal device includes:
determining the position information of the first terminal equipment according to the first positioning information and the second positioning information; the second positioning information corresponds to the second positioning, the second positioning information comprising a second positioning estimation result and/or a second positioning measurement result.
4. The method of claim 2, wherein the method further comprises:
receiving the positioning estimation result from the first terminal equipment;
the determining the location information of the first terminal device includes:
and determining the positioning estimation result as the position information of the first terminal equipment.
5. A method according to any of claims 1 to 4, wherein the indication information is carried in positioning signalling sent to the first terminal device.
6. The method according to any one of claims 1 to 4, wherein the sending indication information to the first terminal device comprises:
transmitting the indication information to the first terminal equipment according to one or more of positioning requirement information, positioning configuration information and second positioning information; the second positioning information corresponds to the second positioning, the second positioning information comprising a second positioning estimation result and/or a second positioning measurement result.
7. The method of claim 6, wherein the method further comprises:
receiving the location configuration information from the access network device, the location configuration information comprising one or more of: capability information, first configuration information of the first link reference signal, reference accuracy of the first positioning, reference position information, identification information of the first terminal equipment and positioning state indication information;
wherein the capability information indicates whether the first terminal device supports the first positioning; the reference precision of the first positioning is the positioning precision of the first positioning estimated by the access network equipment; the reference position information is the position information of fixed position equipment; the first configuration information is configuration information related to positioning accuracy in the configuration information of the first link reference signal, and the first configuration information comprises one or more of the following: transmission bandwidth, resource type, transmission period, transmission times, number of resources and number of resource sets; the identification information of the first terminal device includes one or more of the following: user hidden identifier and globally unique temporary identifier; the positioning state indication information indicates whether the first terminal device is currently performing the first positioning.
8. The method of claim 7, wherein the positioning configuration information is carried in positioning signaling from the access network device.
9. A method as claimed in claim 3, wherein the method further comprises:
receiving second configuration information of the first link reference signal from the access network device; the second configuration information is all configuration information of the first link reference signal;
if the first positioning information comprises the first positioning measurement result, according to the second configuration information, resolving the first positioning measurement result to obtain a first positioning estimation result.
10. A method of positioning, the method comprising:
receiving indication information from a positioning function network element, wherein the indication information is used for indicating starting hybrid positioning, and the hybrid positioning is positioning combining a first positioning and a second positioning; the first positioning corresponds to positioning implemented using a first link reference signal, the first link reference signal being a positioning reference signal between the first terminal device and a second terminal device; the second positioning corresponds to positioning implemented using a second link reference signal, the second link reference signal being a positioning reference signal between the first terminal device and an access network device;
And starting the hybrid positioning according to the indication information.
11. The method of claim 10, wherein the turning on the hybrid positioning comprises one or more of:
opening the first positioning;
transmitting the first link reference signal to the second terminal device;
measuring the first link reference signal;
reporting first positioning information, wherein the first positioning information corresponds to the first positioning, and the first positioning information comprises a first positioning estimation result and/or a first positioning measurement result;
and reporting a positioning estimation result, wherein the positioning estimation result is obtained according to a first positioning estimation result and a second positioning estimation result, the first positioning estimation result corresponds to the first positioning, and the second positioning estimation result corresponds to the second positioning.
12. A method according to claim 10 or 11, wherein the indication information is carried in positioning signalling from the positioning function network element.
13. A method of positioning, the method comprising:
transmitting positioning configuration information to a positioning function network element, wherein the positioning configuration information comprises one or more of the following: capability information, first configuration information of a first link reference signal, reference accuracy of a first positioning, and reference position information; the first position fix corresponds to a position fix achieved using the first link reference signal; the first link reference signal is a positioning reference signal between the first terminal equipment and the second terminal equipment, identification information of the first terminal equipment and positioning state indication information;
Wherein the capability information indicates whether a first terminal device supports the first positioning; the reference precision of the first positioning is the positioning precision of the first positioning estimated by access network equipment; the reference position information is the position information of fixed position equipment; the first configuration information is configuration information related to positioning accuracy in the configuration information of the first link reference signal, and the first configuration information comprises one or more of the following: transmission bandwidth, resource type, transmission period, transmission times, number of resources and number of resource sets; the identification information of the first terminal device includes one or more of the following: user hidden identifier and globally unique temporary identifier; the positioning state indication information indicates whether the first terminal device is currently performing the first positioning.
14. The method of claim 13, wherein the positioning configuration information is carried in positioning signaling from the access network device.
15. The method of claim 13, wherein the method further comprises:
transmitting second configuration information of the first link reference signal to the positioning function network element; the second configuration information is all configuration information of the first link reference signal, and the second configuration information is used for resolving a first positioning measurement result, wherein the first positioning measurement result corresponds to the first positioning.
16. A positioning device, the device comprising:
the communication unit is used for sending indication information to the first terminal equipment, wherein the indication information indicates to start hybrid positioning, and the hybrid positioning is positioning combining the first positioning and the second positioning; the first positioning corresponds to positioning implemented using a first link reference signal, the first link reference signal being a positioning reference signal between the first terminal device and a second terminal device; the second positioning corresponds to positioning implemented using a second link reference signal, the second link reference signal being a positioning reference signal between the first terminal device and an access network device;
and the processing unit is used for determining the position information of the first terminal equipment, and the position information of the first terminal equipment is determined based on the hybrid positioning.
17. A positioning device, the device comprising:
the communication unit is used for receiving indication information from the positioning function network element, wherein the indication information is used for indicating to start hybrid positioning, and the hybrid positioning is positioning combining the first positioning and the second positioning; the first positioning corresponds to positioning implemented using a first link reference signal, the first link reference signal being a positioning reference signal between the first terminal device and a second terminal device; the second positioning corresponds to positioning implemented using a second link reference signal, the second link reference signal being a positioning reference signal between the first terminal device and an access network device;
And the processing unit starts the hybrid positioning according to the indication information.
18. A positioning device, the method comprising:
a communication unit, configured to send positioning configuration information to a positioning function network element, where the positioning configuration information includes one or more of the following: capability information, first configuration information of a first link reference signal, reference accuracy of a first positioning, and reference position information; the first position fix corresponds to a position fix achieved using the first link reference signal; the first link reference signal is a positioning reference signal between the first terminal equipment and the second terminal equipment, identification information of the first terminal equipment and positioning state indication information;
wherein the capability information indicates whether a first terminal device supports the first positioning; the reference precision of the first positioning is the positioning precision of the first positioning estimated by access network equipment; the reference position information is the position information of fixed position equipment; the first configuration information is configuration information related to positioning accuracy in the configuration information of the first link reference signal, and the first configuration information comprises one or more of the following: transmission bandwidth, resource type, transmission period, transmission times, number of resources and number of resource sets; the identification information of the first terminal device includes one or more of the following: user hidden identifier and globally unique temporary identifier; the positioning state indication information indicates whether the first terminal device is currently performing the first positioning.
19. A positioning device comprising a processor, a memory and a computer program or instructions stored on the memory, characterized in that the processor executes the computer program or instructions to implement the steps of the method of any one of claims 1-9, or to implement the steps of the method of any one of claims 10-12, or to implement the steps of the method of any one of claims 13-15.
20. A chip comprising a processor, characterized in that the processor performs the steps of the method of any one of claims 1-9, or performs the steps of the method of any one of claims 10-12, or performs the steps of the method of any one of claims 13-15.
21. A computer readable storage medium, characterized in that it stores a computer program or instructions which, when executed, implements the steps of the method of any one of claims 1-9, or implements the steps of the method of any one of claims 10-12, or implements the steps of the method of any one of claims 13-15.
CN202210520687.6A 2022-05-13 2022-05-13 Positioning method and related device Pending CN117098059A (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN202210520687.6A CN117098059A (en) 2022-05-13 2022-05-13 Positioning method and related device

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