CN115119535A

CN115119535A - Positioning measurement information determining method and device and synchronous error sending method and device

Info

Publication number: CN115119535A
Application number: CN202180000293.1A
Authority: CN
Inventors: 李小龙
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2021-01-22
Filing date: 2021-01-22
Publication date: 2022-09-27
Also published as: WO2022155930A1

Abstract

The present disclosure relates to a method for determining positioning measurement information, comprising: and acquiring synchronous errors among a plurality of sending and receiving points, and determining positioning measurement information according to the synchronous errors. According to the method and the device, the synchronous error between the sending receiving points can be obtained, and then the positioning measurement information is determined according to the synchronous error, so that the deviation caused by the synchronous error in the positioning measurement information is eliminated, for example, after the initial positioning measurement information is obtained, the initial positioning measurement information can be adjusted according to the synchronous error, and then the position is determined according to the adjusted positioning measurement information, and the positioning accuracy is favorably ensured.

Description

Positioning measurement information determining method and device and synchronization error sending method and device

Technical Field

The present disclosure relates to the field of communications technologies, and in particular, to a positioning measurement information determining method, a synchronization error sending method, a positioning measurement information determining apparatus, a synchronization error sending apparatus, an electronic device, and a computer-readable storage medium.

Background

In 5G communication, various positioning technologies are introduced for positioning a terminal, such as an uplink positioning technology, a downlink positioning technology, and a positioning technology combining downlink positioning and uplink positioning.

For downlink positioning, a terminal may receive Reference signals sent by different Transmission and Reception Points (TRP), determine a Time for receiving each Reference Signal, determine a Time Difference of arrival (RSTD) of the Reference Signal according to the Time, and perform positioning according to the Time Difference of arrival.

For uplink positioning, different sending and receiving points can receive a reference signal sent by a terminal, determine the Time when each sending and receiving point receives the reference signal, further determine a Relative Arrival Time (RTOA) Of the reference signal according to the Time, and perform positioning according to the Relative Arrival Time.

Therefore, no matter downlink positioning or uplink positioning, cooperation among multiple transmitting and receiving points is required, synchronization among the multiple transmitting and receiving points is required, and otherwise positioning accuracy is affected. However, for various reasons, some synchronization errors may exist between different transmitting and receiving points, which may cause the transmitting and receiving points to be out of synchronization, thereby affecting the positioning accuracy.

Disclosure of Invention

In view of the above, embodiments of the present disclosure provide a positioning measurement information determining method, a synchronization error sending method, a positioning measurement information determining apparatus, a synchronization error sending apparatus, an electronic device, and a computer-readable storage medium to solve technical problems in the related art.

According to a first aspect of the embodiments of the present disclosure, a method for determining positioning measurement information is provided, which is applied to a first device, and the method includes:

acquiring synchronous errors among a plurality of sending and receiving points;

and determining positioning measurement information according to the synchronization error.

According to a second aspect of the embodiments of the present disclosure, a synchronization error sending method is provided, which is applied to a second device, and the method includes:

determining synchronization errors among a plurality of transmitting and receiving points;

and sending the synchronization error to first equipment so that the first equipment can determine positioning measurement information according to the synchronization error.

According to a third aspect of the embodiments of the present disclosure, a synchronization error sending method is provided, which is applied to a second device, and the method includes:

According to a fourth aspect of the embodiments of the present disclosure, there is provided a synchronization error sending apparatus, adapted to a second device, the apparatus including:

an error determination module configured to determine synchronization errors between a plurality of transmit receive points;

an error sending module configured to send the synchronization error to a first device for the first device to determine positioning measurement information according to the synchronization error.

According to a fifth aspect of embodiments of the present disclosure, an embodiment of the present disclosure is also presented that an electronic device includes:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to perform the above positioning measurement information determination method, and/or the above synchronization error transmission method.

According to a sixth aspect of the embodiments of the present disclosure, a computer-readable storage medium is proposed, on which a computer program is stored, which when executed by a processor, implements the above positioning measurement information determining method, and/or the steps in the above synchronization error sending method.

According to the embodiment of the disclosure, the synchronization error between the sending and receiving points can be obtained, and then the positioning measurement information is determined according to the synchronization error, so as to eliminate the deviation caused by the synchronization error in the positioning measurement information.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.

Fig. 1 is a schematic flow chart diagram illustrating a positioning measurement information determination method according to an embodiment of the present disclosure.

Fig. 2 is a schematic flow chart diagram illustrating another method of determining positioning measurement information in accordance with an embodiment of the present disclosure.

Fig. 3 is a schematic flow chart diagram illustrating yet another positioning measurement information determination method according to an embodiment of the present disclosure.

Fig. 4 is a schematic flow chart diagram illustrating yet another positioning measurement information determination method according to an embodiment of the present disclosure.

Fig. 5 is a schematic flow chart diagram illustrating yet another positioning measurement information determination method according to an embodiment of the present disclosure.

Fig. 6 is a schematic flow chart diagram illustrating a synchronization error transmission method according to an embodiment of the present disclosure.

Fig. 7 is a schematic flow chart diagram illustrating another synchronization error sending method according to an embodiment of the present disclosure.

Fig. 8 is a schematic flow chart diagram illustrating one type of determining location information in accordance with an embodiment of the present disclosure.

Fig. 9 is a schematic flow chart diagram illustrating another method of determining location information according to an embodiment of the present disclosure.

Fig. 10 is a schematic block diagram illustrating a positioning measurement information determination apparatus according to an embodiment of the present disclosure.

Fig. 11 is a schematic block diagram illustrating a synchronization error transmitting apparatus according to an embodiment of the present disclosure.

Fig. 12 is a schematic block diagram illustrating an apparatus for synchronous error transmission according to an embodiment of the present disclosure.

Fig. 13 is a schematic block diagram illustrating an apparatus for positioning measurement information determination according to an embodiment of the present disclosure.

Detailed Description

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

It will be understood by those skilled in the art that the embodiments may be implemented alone or in combination with any other embodiment in the embodiments of the present disclosure, and the embodiments of the present disclosure are not limited thereto.

Fig. 1 is a schematic flow chart diagram illustrating a positioning measurement information determination method according to an embodiment of the present disclosure. The method for determining Location measurement information shown in this embodiment may be applied to a first device, where the first device may be a terminal, may also be a core network, and specifically may be an Access and Mobility Management Function (AMF) or a Location Management Function (LMF) in the core network.

The terminal comprises but is not limited to electronic equipment such as a mobile phone, a tablet computer, wearable equipment, a sensor and internet of things equipment. The terminal can be used as user equipment to communicate with a base station and a core network, the base station includes but is not limited to a base station in a communication system such as a 4G base station, a 5G base station, a 6G base station, and the core network includes but is not limited to a base station in a communication system such as a 4G core network, a 5G core network, a 6G core network.

As shown in fig. 1, the positioning measurement information determining method may include the steps of:

in step S101, a synchronization error between a plurality of transmitting and receiving points is acquired; wherein, the transmitting and receiving point may be a base station.

In step S102, positioning measurement information is determined according to the synchronization error.

In an embodiment, a synchronization error between multiple transmitting and receiving points used in the positioning process may be obtained, and specifically, a synchronization error between every two transmitting and receiving points in the multiple transmitting and receiving points may be obtained.

For example, the positioning process requires the participation of 3 transmission receiving points TRP, TRP1, TRP2 and TRP3, and then the acquired synchronization errors include: a synchronization error1 between TRP1 and TPR2, a synchronization error2 between TRP1 and TPR3, and a synchronization error3 between TRP2 and TPR 3.

In one embodiment, the synchronization error may be caused by various reasons, such as a synchronization error caused by clock asynchronism between different transmitting and receiving points, and a synchronization error caused by hardware processing time difference between different transmitting and receiving points.

In one embodiment, the synchronization error may be obtained from a second device, wherein the first device and the second device may be the same device, i.e. the first device may autonomously determine the synchronization error. The first device and the second device may also be different devices, for example, the first device is a core network, the second device is a terminal, the synchronization error may be determined by the terminal, and then the terminal sends the determined synchronization error to the core network; for example, the first device is a core network, and the second device is a base station, for example, a base station where multiple transmission and reception points are located, the synchronization error may be determined by the base station, and then the base station transmits the determined synchronization error to the core network.

Of course, the first device and the second device are not limited to the situations described in the above embodiments, and can be flexibly adjusted according to specific situations. In addition, the manner in which the second device determines the synchronization error is described in the subsequent embodiments.

In one embodiment, the positioning measurement information may be positioning process information or positioning result information. The positioning result information may be location information, the positioning process information may be reference signal time difference RSTD for downlink positioning, and may be relative time to arrival RTOA for uplink positioning.

According to the embodiment of the disclosure, a synchronization error between the sending and receiving points can be obtained, and then the positioning measurement information is determined according to the synchronization error, so as to eliminate a deviation caused by the synchronization error in the positioning measurement information, for example, after the initial positioning measurement information (that is, the positioning measurement information which is not adjusted by the synchronization error) is obtained, the initial positioning measurement information can be adjusted according to the synchronization error, and then the position is determined according to the adjusted positioning measurement information, which is beneficial to ensuring the accuracy of positioning.

Fig. 2 is a schematic flow chart diagram illustrating another method of determining positioning measurement information in accordance with an embodiment of the present disclosure. As shown in fig. 2, in some embodiments, the first device is a terminal, and the acquiring synchronization errors between multiple transmission receiving points includes:

in step S201, the synchronization error sent by the core network is received.

In one embodiment, the first device may be a terminal, and the synchronization error may be sent to the terminal by the core network, where the synchronization error may be determined by the base station, and then sent to the core network, and then sent to the terminal by the core network.

In one embodiment, the receiving the synchronization error sent by the core network includes:

and receiving positioning auxiliary information and/or request position information sent by a core network, and acquiring the synchronization error from the positioning auxiliary information and/or the request position information.

In one embodiment, in the case that the core network sends the synchronization error to the terminal, the core network may send the synchronization error to the terminal when sending information to the terminal in the positioning process.

For example, the core network may send the positioning Assistance information LPP provider Assistance Data to the terminal, and then the core network may send the terminal with the synchronization error carried in the positioning Assistance information.

For example, the core network may send Request Location Information LPP Request Location Information to the terminal, and then the core network may send the requested Location Information to the terminal by carrying a synchronization error in the Request Location Information.

The LPP refers to an LTE (Long Term Evolution) positioning protocol.

Fig. 3 is a schematic flow chart diagram illustrating yet another positioning measurement information determination method according to an embodiment of the present disclosure. As shown in fig. 3, in some embodiments, the first device is a terminal, and the acquiring synchronization errors between multiple transmission receiving points includes:

in step S301, the synchronization error transmitted by the base station is received.

In one embodiment, the first device may be a terminal and the synchronization error may be transmitted by the base station to the terminal, wherein the synchronization error may be determined by the base station.

In one embodiment, the synchronization error transmitted by the receiving base station comprises:

and receiving positioning system information and/or wireless resource control information sent by a base station, and acquiring the synchronization error from the positioning system information and/or the wireless resource control information.

In one embodiment, in the case where the base station transmits the synchronization error to the terminal, the base station may transmit the synchronization error to the terminal, carrying it in the positioning system information. The positioning system information may be broadcast by the base station, and the positioning system information may also carry positioning auxiliary information in addition to the synchronization error.

In an embodiment, when the base station sends the synchronization error to the terminal, the base station may send the synchronization error to the terminal while carrying the synchronization error in Radio Resource Control (RRC) information.

Fig. 4 is a schematic flow chart diagram illustrating yet another positioning measurement information determination method according to an embodiment of the present disclosure. As shown in fig. 4, in some embodiments, the first device is a core network, and the acquiring synchronization errors between multiple transmission and reception points includes:

in step S401, the synchronization error sent by the base station is received.

In one embodiment, the first device may be a core network and the synchronization error may be sent by the base station to the core network, e.g., the base station sends the synchronization error to the core network in an NRPPa (NR positioning protocol a) message. Wherein, the synchronization error can be determined by the base station and sent to the core network by the base station.

Fig. 5 is a schematic flow chart diagram illustrating yet another positioning measurement information determination method according to an embodiment of the present disclosure. As shown in fig. 5, in some embodiments, the first device is a core network, and the acquiring synchronization errors between multiple transmitting and receiving points includes:

in step S501, the synchronization error transmitted by the terminal is received.

In one embodiment, the first device may be a core network, and the synchronization error may be sent to the core network by the terminal, for example, the terminal sends the synchronization error carried in the positioning Information LPP provider Location Information to the core network. The base station sends the synchronization error to the terminal, and then the terminal sends the synchronization error to the core network.

In an embodiment, the positioning measurement information is downlink positioning measurement information, and the first device is a terminal and/or a core network.

In one embodiment, where the positioning measurement information is downlink positioning measurement information, the initial positioning measurement information is typically determined by the terminal.

For example, in the case that the terminal determines the positioning measurement information according to the synchronization error, the terminal may determine the arrival time difference, referred to as reference signal time difference RSTD for short, of the positioning reference signals of different TRPs, adjust the reference signal time difference according to the synchronization error, and then send the adjusted reference signal time difference to the core network; if the terminal further determines the location information according to the reference signal time difference, the location information may be adjusted according to the synchronization error, and then the adjusted location information is sent to the core network.

For example, in the case that the core network determines the positioning measurement information according to the synchronization error, the terminal may send the initial positioning measurement information to the core network after determining the initial positioning measurement information, and the core network adjusts the initial positioning measurement information according to the synchronization error to obtain the adjusted positioning measurement information. The terminal can determine the reference signal time difference and then send the reference signal time difference to the core network, and the core network can adjust the reference signal time difference according to the synchronization error and further determine the position information according to the adjusted reference signal time difference; if the terminal further determines the position information according to the reference signal time difference, and then sends the position information to the core network, the core network can adjust the position information according to the synchronization error, and then determines the position of the terminal according to the adjusted position information.

The following description will take the first transmission reception point TPR1 and the second transmission reception point TPR2 as examples to illustrate the operation of determining the positioning measurement information according to the synchronization error in the downlink positioning.

In one embodiment, the multiple sending and receiving points include at least a first sending and receiving point and a second sending and receiving point, the synchronization error is a synchronization error between the first sending and receiving point and the second sending and receiving point, and the positioning measurement information is a time difference between the terminal receiving a positioning reference signal of the first sending and receiving point and a positioning reference signal of the second sending and receiving point;

said determining positioning measurement information from said synchronization error comprises:

and adjusting the time difference according to the synchronization error.

In one embodiment, for the first transmission and reception point TRP1 and the second transmission and reception point TPR2, the synchronization error between the first transmission and reception point TRP1 and the second transmission and reception point TRP2 is error1, and the time difference between the terminal receiving the positioning reference signal of the first transmission and reception point TRP1 and the terminal receiving the positioning reference signal of the second transmission and reception point TRP2 is RSTD, then the time difference may be adjusted according to the synchronization error to eliminate the deviation caused by the error1 in the RSTD, for example, the RSTD minus the error1 is used as the adjusted RSTD, and then the position information is determined according to the adjusted RSTD, which is beneficial to ensuring the positioning accuracy.

In an embodiment, the positioning measurement information is uplink positioning measurement information, and the first device is a core network.

In one embodiment, where the positioning measurement information is uplink positioning measurement information, the initial positioning measurement information is typically determined by the base station.

For example, in the case that the core network determines the positioning measurement information according to the synchronization error, the base station may send the initial positioning measurement information to the core network after determining the initial positioning measurement information, and the core network adjusts the initial positioning measurement information according to the synchronization error to obtain the adjusted positioning measurement information. The base station can determine the relative arrival time, then send the relative arrival time to the core network, the core network can adjust the relative arrival time according to the synchronous error, and then determine the position information according to the adjusted relative arrival time; if the base station further determines the position information according to the relative arrival time, and then sends the position information to the core network, the core network can adjust the position information according to the synchronization error, and then determines the position of the terminal according to the adjusted position information.

The following takes the first transmitting and receiving point TPR1 and the second transmitting and receiving point TPR2 as examples, and the operation of determining the positioning measurement information according to the synchronization error in the uplink positioning is exemplarily described.

In one embodiment, the plurality of sending and receiving points include at least a first sending and receiving point and a second sending and receiving point, the synchronization error is a synchronization error between the first sending and receiving point and the second sending and receiving point, and the positioning measurement information includes a second time when the second sending and receiving point receives the channel sounding reference signal of the terminal at a first time when the first sending and receiving point receives the channel sounding reference signal of the terminal;

adjusting the first time and/or the second time according to the synchronization error.

In one embodiment, for the first transmission and reception point TRP1 and the second transmission and reception point TPR2, the synchronization error between the first transmission and reception point TRP1 and the second transmission and reception point TRP2 is error1, the first time when the first transmission and reception point receives the channel sounding reference signal of the terminal is RTOA1, and the second time when the second transmission and reception point receives the channel sounding reference signal to the terminal is RTOA2, then RTOA1 and/or RTOA2 may be adjusted according to the synchronization error.

The RTOA1 can be adjusted only according to the synchronization error, for example, the RTOA1 minus error1 is used as the adjusted RTOA1, and then the position information is determined according to the RTOA2 and the adjusted RTOA1, which is beneficial to ensuring the positioning accuracy.

Or only the RTOA2 can be adjusted according to the synchronization error, for example, the RTOA2 plus the error1 is used as the adjusted RTOA2, and the position information is determined according to the RTOA1 and the adjusted RTOA2, which is beneficial to ensuring the positioning accuracy.

The RTOA2 and the RTOA1 can be adjusted according to the synchronization error, for example, the error1 is split into two parts of error X and error Y, the error X is subtracted from the RTOA1 to serve as the adjusted RTOA1, the error Y is added to the RTOA2 to serve as the adjusted RTOA2, and then the position information is determined according to the adjusted RTOA1 and the adjusted RTOA2, so that the positioning accuracy is guaranteed.

Fig. 6 is a schematic flow chart diagram illustrating a synchronization error transmission method according to an embodiment of the present disclosure. The synchronization error sending method shown in this embodiment may be applied to a second device, where the second device may be a base station, or may also be a core network, and specifically may be an access and mobility management function AMF or a location management function LMF in the core network.

The base station and the core network may communicate with a terminal as a user equipment, where the base station includes but is not limited to a base station in a communication system such as a 4G base station, a 5G base station, and a 6G base station, and the core network includes but is not limited to a base station in a communication system such as a 4G core network, a 5G core network, and a 6G core network.

As shown in fig. 6, the positioning measurement information determining method may include the steps of:

in step S601, a synchronization error between a plurality of transmission receiving points is determined;

in step S602, the synchronization error is sent to a first device, so that the first device determines positioning measurement information according to the synchronization error.

In one embodiment, a synchronization error between a plurality of transmitting and receiving points used in the positioning process may be determined, and specifically, a synchronization error between every two transmitting and receiving points in the plurality of transmitting and receiving points may be determined.

For example, the positioning process requires the participation of 3 transmission receiving points TRP, TRP1, TRP2 and TRP3, and then the determined synchronization errors include: a synchronization error1 between TRP1 and TPR2, a synchronization error2 between TRP1 and TPR3, and a synchronization error3 between TRP2 and TPR 3.

In one embodiment, the first device and the second device may be the same device, i.e. the first device may autonomously determine the synchronization error. The first device and the second device may also be different devices, for example, the first device is a core network, the second device is a terminal, the synchronization error may be determined by the terminal, and then the terminal sends the determined synchronization error to the core network; for example, the first device is a core network, and the second device is a base station, for example, a base station where multiple transmission and reception points are located, the synchronization error may be determined by the base station, and then the base station transmits the determined synchronization error to the core network.

In one embodiment, by determining a synchronization error between the sending and receiving points and sending the determined synchronization error to the first device, the first device may determine the positioning measurement information according to the synchronization error to eliminate a deviation caused by the synchronization error in the positioning measurement information, for example, after obtaining the initial positioning measurement information, the initial positioning measurement information may be adjusted according to the synchronization error, and then a position is determined according to the adjusted positioning measurement information, which is beneficial to ensuring the positioning accuracy.

In one embodiment, the second device is a core network, the first device is a terminal, and the sending the synchronization error to the first device includes:

and sending positioning auxiliary information and/or request position information to the terminal, wherein the positioning auxiliary information and/or the request position information carry the synchronization error.

For example, the core network may send Request Location Information LPP Request Location Information to the terminal, and then the core network may send the requested Location Information to the terminal by carrying the synchronization error in the Request Location Information.

In one embodiment, the second device is a base station, the first device is a terminal, and the sending the synchronization error to the first device includes:

and sending positioning system information and/or wireless resource control information to the terminal, wherein the positioning system information and/or the wireless resource control information carry the synchronization error.

In one embodiment, in the case where the base station transmits the synchronization error to the terminal, the base station may transmit the synchronization error to the terminal while carrying it in the positioning system information. The positioning system information may be broadcast by the base station, and may also carry positioning auxiliary information in addition to the synchronization error.

In one embodiment, in the case where the base station transmits the synchronization error to the terminal, the base station may transmit the synchronization error to the terminal while being carried in radio resource control RRC information.

In one embodiment, the second device is a base station, the first device is a core network, and the synchronization error may be sent to the core network by the base station, for example, the base station sends the synchronization error to the core network in an NRPPa (NR positioning protocol a) message. Wherein, the synchronization error can be determined by the base station and sent to the core network by the base station.

In an embodiment, the second device is a terminal, the first device is a core network, and the synchronization error may be sent to the core network by the terminal, for example, the terminal sends the synchronization error carried in the positioning Information LPP provider Location Information to the core network. The synchronization error can be determined by the base station, and the base station sends the synchronization error to the terminal and then the terminal sends the synchronization error to the core network.

Several ways of determining the synchronization error are exemplarily described below mainly for the first and second transmission reception points TRP1, TRP2 of the plurality of transmission reception points.

Fig. 7 is a schematic flow chart diagram illustrating another synchronization error transmission method according to an embodiment of the present disclosure. As shown in fig. 7, in some embodiments, the multiple transmission/reception points include at least a first transmission/reception point and a second transmission/reception point, and the determining a synchronization error between the multiple transmission/reception points includes:

in step S701, a first Round-Trip delay between the first transmitting and receiving point and the terminal and a second Round-Trip delay (Round-Trip Time, RTT for short) between the second transmitting and receiving point and the second terminal are determined;

in step S702, a time difference between the terminal receiving the positioning reference signal of the first sending and receiving point and the positioning reference signal of the second sending and receiving point is obtained;

in step S703, a synchronization error between the first sending/receiving point and the second sending/receiving point is determined according to the time difference, the first round-trip delay, and the second round-trip delay.

In one embodiment, a first round trip delay RTT1 between the first transceiver and the terminal and a second round trip delay RTT2 between the second transceiver and the second terminal may be determined.

The manner of determining the round-trip delay between the terminal and the different transmitting and receiving points may be the same. Taking the first transmission and reception point TPR1 as an example, the TRP1 transmits a downlink reference signal to the terminal, the terminal transmits an uplink reference signal to the TRP1 after receiving the downlink reference signal, the time when the TRP1 transmits the downlink reference signal is t1, the time when the terminal receives the downlink reference signal is t2, the time when the terminal transmits the uplink reference signal is t3, and the time when the TRP1 receives the downlink reference signal is t 4.

the time duration t3-t2 from t2 to t3 can be understood as the internal processing time duration of the terminal, and the time duration t4-t1 from t1 to t4 includes the transmission time duration of the downlink signal from the TRP1 to the terminal, the internal processing time duration of the terminal, and the transmission time duration of the uplink reference signal from the terminal to the TRP1, so that the time duration t3-t2 is subtracted from the time duration t4-t1, and the remaining time duration is the transmission time duration of the downlink signal from the TRP1 to the terminal, and the transmission time duration of the uplink reference signal from the terminal to the TRP1, that is, the first round trip time duration RTT 1. RTT2 may be calculated in a similar manner.

It should be noted that, the above-mentioned manner of calculating the round trip delay according to the transceiving time of the reference signal is only an example, and other manners may also be selected to calculate the round trip delay.

On the other hand, the time difference RSTD between the terminal receiving the positioning reference signal of the first transmitting and receiving point and the positioning reference signal of the second transmitting and receiving point can also be determined. Further, a synchronization error RSTD-1/2 (RTT1-RTT2) can be calculated from RSTD, RTT1, and RTT 2.

In some embodiments, the plurality of transceiver points comprises at least a first transceiver point and a second transceiver point, and the determining a synchronization error between the plurality of transceiver points comprises:

and determining the synchronization error between the first transmitting and receiving point and the second transmitting and receiving point according to the intrinsic parameter information of the first transmitting and receiving point and the intrinsic parameter information of the second transmitting and receiving point.

In one embodiment, the sending and receiving points may store inherent parameter information specific to the sending and receiving points in advance, such as a clock, hardware processing time, and the like, the base station where the sending and receiving points are located may determine a synchronization error between the sending and receiving points according to a difference of the inherent parameter information between the sending and receiving points, and the sending and receiving points may also send the inherent parameter information to the core network, and the core network determines the synchronization error between the sending and receiving points according to the difference of the inherent parameter information between the sending and receiving points.

For example, for any two different sending and receiving points, the first sending and receiving point and the second sending and receiving point, the clocks of the two sending and receiving points are the same, but the hardware processing time is different, the hardware processing time of the first sending and receiving point is T1, the hardware processing time of the second sending and receiving point is T2, and T1 is greater than T2, then the synchronization error between the first sending and receiving point and the second sending and receiving point may be equal to T1-T2.

It should be noted that, the first sending and receiving point and the second sending and receiving point in the above embodiments do not refer to a certain sending and receiving point, but refer to two arbitrary different sending and receiving points among multiple sending and receiving points used in the positioning process.

Fig. 8 is a schematic flow chart diagram illustrating one type of determining location information in accordance with an embodiment of the present disclosure. As shown in fig. 8, taking the following positioning as an example, the process of determining the position information may include the following steps:

step S801, a core network sends capability Request information LPP Request Capabilities to a terminal;

step S802, the terminal sends capability information LPP provider Capabilities to a core network;

step S803, the core network sends positioning auxiliary information LPP provider association information to the terminal;

step S804, the core network sends Request position Information LPP Request Location Information to the terminal;

wherein, the synchronization error can be carried in the positioning auxiliary information, and can also be carried in the request position information;

step S805, the terminal sends positioning measurement indication information to the base station to request the base station to configure a positioning measurement gap for the terminal;

step S806, the base station sends positioning measurement gap configuration to the terminal;

step S807, the base station measures the positioning reference signal in the configuration by the terminal to obtain initial positioning measurement information such as RSTD or position information, and then adjusts the initial positioning measurement information by a synchronization error;

step S808, the terminal sends the adjusted positioning measurement information to the core network.

Fig. 9 is a schematic flow chart diagram illustrating another method of determining location information according to an embodiment of the present disclosure. As shown in fig. 9, taking uplink positioning as an example, the process of determining the position information may include the following steps:

step S901, a core network sends capability Request information LPP Request Capabilities to a terminal;

step S902, the terminal sends the capability information LPP provider Capabilities to the core network;

step S903, the core network sends a Positioning Information Request NRPPa Positioning Information Request to the base station;

step S904, the base station determines that the configuration of Sounding Reference Signal (SRS) is sent to the terminal;

step S905, the base station sends a Positioning Information Response NRPPa Positioning Information Response to the core network;

step S906, the core network sends a terminal sounding reference signal activation Request NRPPa Request UE SRS activation to the base station;

step S907, after the base station activates the terminal to send the sounding reference signal, the base station sends a terminal sounding reference signal activation Response NRPPa UE SRS activation Response to the core network;

step S908, the core network sends a Measurement Request NRPPa Measurement Request to the base station;

step S909, the base station (which may be specifically a sending and receiving point in the base station) measures the sounding reference signal sent by the terminal to obtain initial positioning measurement information, such as RTOA or position information, and then adjusts the initial positioning measurement information through synchronization error;

step S910, the base station sends the adjusted positioning measurement information to the core network or the base station sends the measurement information and the synchronization error to the core network.

It should be noted that the base station in all embodiments of the present disclosure may refer to a sending and receiving point, or may refer to a device where multiple sending and receiving points are located, and the specific meaning may be determined according to the context thereof. In addition, multiple sending and receiving points may all be located in the same base station, and may be located in different base stations, for example, the sending and receiving point is the base station itself, and may be specifically set according to needs.

Corresponding to the embodiments of the positioning measurement information determining method and the synchronization error sending method, the disclosure also provides embodiments of a positioning measurement information determining apparatus and a synchronization error sending apparatus.

Fig. 10 is a schematic block diagram illustrating a positioning measurement information determination apparatus according to an embodiment of the present disclosure. The positioning measurement information determining apparatus shown in this embodiment may be applied to a first device, where the first device may be a terminal, or may also be a core network, and specifically may be an access and mobility management function AMF or a positioning management function LMF in the core network.

As shown in fig. 10, the positioning measurement information determining apparatus may include:

an error acquisition module 1001 configured to acquire synchronization errors between a plurality of transmission and reception points;

an information determination module 1002 configured to determine positioning measurement information based on the synchronization error.

In an embodiment, the first device is a terminal, and the error obtaining module is configured to receive the synchronization error sent by a core network.

In an embodiment, the error obtaining module is configured to receive positioning assistance information and/or requested location information sent by a core network, and obtain the synchronization error from the positioning assistance information and/or the requested location information.

In an embodiment, the first device is a terminal, and the error obtaining module is configured to receive the synchronization error sent by a base station.

In one embodiment, the error obtaining module is configured to receive positioning system information and/or radio resource control information sent by a base station, and obtain the synchronization error from the positioning system information and/or radio resource control information.

In an embodiment, the first device is a core network, and the error obtaining module is configured to receive the synchronization error sent by a base station.

In an embodiment, the first device is a core network, and the error obtaining module is configured to receive the synchronization error sent by a terminal.

the information determination module configured to adjust the time difference according to the synchronization error.

the information determination module is configured to adjust the first time and/or the second time according to the synchronization error.

Fig. 11 is a schematic block diagram illustrating a synchronization error transmitting apparatus according to an embodiment of the present disclosure. The synchronization error sending apparatus shown in this embodiment may be applicable to a second device, where the second device may be a base station, and may also be a core network, and specifically may be an access and mobility management function AMF or a location management function LMF in the core network.

As shown in fig. 11, the positioning measurement information determining apparatus may include:

an error determination module 1101 configured to determine synchronization errors between a plurality of transmitting and receiving points;

an error sending module 1102 configured to send the synchronization error to a first device for the first device to determine positioning measurement information according to the synchronization error.

In an embodiment, the second device is a core network, the first device is a terminal, and the error sending module is configured to send positioning assistance information and/or request location information to the terminal, where the positioning assistance information and/or the request location information carries the synchronization error.

In an embodiment, the second device is a base station, the first device is a terminal, and the error sending module is configured to send positioning system information and/or radio resource control information to the terminal, where the positioning system information and/or the radio resource control information carries the synchronization error.

In one embodiment, the second device is a base station, and the first device is a core network.

In one embodiment, the second device is a terminal, and the first device is a core network.

In one embodiment, the plurality of transceiver points includes at least a first transceiver point and a second transceiver point, and the error determination module is configured to determine a first round trip delay between the first transceiver point and the terminal and a second round trip delay between the second transceiver point and the second terminal;

acquiring the time difference between the terminal receiving the positioning reference signal of the first sending and receiving point and the positioning reference signal of the second sending and receiving point;

and determining a synchronization error between the first sending and receiving point and the second sending and receiving point according to the time difference, the first round-trip delay and the second round-trip delay.

In one embodiment, the plurality of transmitting and receiving points includes at least a first transmitting and receiving point and a second transmitting and receiving point, and the error determination module is configured to determine a synchronization error between the first transmitting and receiving point and the second transmitting and receiving point according to intrinsic parameter information of the first transmitting and receiving point and intrinsic parameter information of the second transmitting and receiving point.

With regard to the apparatus in the above embodiments, the specific manner in which each module performs operations has been described in detail in the embodiments of the related method, and will not be described in detail here.

For the device embodiment, since it basically corresponds to the method embodiment, reference may be made to the partial description of the method embodiment for relevant points. The above-described embodiments of the apparatus are merely illustrative, wherein the modules described as separate parts may or may not be physically separate, and the parts displayed as modules may or may not be physical modules, may be located in one place, or may be distributed on a plurality of network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.

An embodiment of the present disclosure also provides an electronic device, including:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to perform the positioning measurement information determining method according to any of the above embodiments and/or the synchronization error sending method according to any of the above embodiments.

Embodiments of the present disclosure also provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the positioning measurement information determining method according to any of the above embodiments and/or the steps in the synchronization error sending method according to any of the above embodiments.

As shown in fig. 12, fig. 12 is a schematic block diagram illustrating an apparatus 1200 for synchronization error transmission according to an embodiment of the disclosure. Apparatus 1200 may be provided as a base station. Referring to fig. 12, apparatus 1200 includes a processing component 1222, a wireless transmit/receive component 1224, an antenna component 1226, and wireless interface-specific signal processing components, and processing component 1222 may further include one or more processors. One of the processors in the processing component 1222 may be configured to implement the synchronization error sending method according to any of the above embodiments.

Fig. 13 is a schematic block diagram illustrating an apparatus 1300 for positioning measurement information determination, in accordance with an embodiment of the present disclosure. For example, apparatus 1300 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and so forth.

Referring to fig. 13, the apparatus 1300 may include one or more of the following components: a processing component 1302, a memory 1304, a power component 1306, a multimedia component 1308, an audio component 1310, an input/output (I/O) interface 1312, a sensor component 1314, and a communication component 1316.

The processing component 1302 generally controls overall operation of the device 1300, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 1302 may include one or more processors 1320 to execute instructions to perform all or a portion of the steps of the positioning measurement information determination methods described above. Further, processing component 1302 can include one or more modules that facilitate interaction between processing component 1302 and other components. For example, the processing component 1302 may include a multimedia module to facilitate interaction between the multimedia component 1308 and the processing component 1302.

The memory 1304 is configured to store various types of data to support operations at the apparatus 1300. Examples of such data include instructions for any application or method operating on device 1300, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 1304 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.

Power supply component 1306 provides power to the various components of device 1300. Power components 1306 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for device 1300.

The multimedia component 1308 includes a screen between the device 1300 and the user that provides an output interface. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 1308 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the apparatus 1300 is in an operation mode, such as a photographing mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

The audio component 1310 is configured to output and/or input audio signals. For example, the audio component 1310 includes a Microphone (MIC) configured to receive external audio signals when the apparatus 1300 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 1304 or transmitted via the communication component 1316. In some embodiments, the audio component 1310 also includes a speaker for outputting audio signals.

The I/O interface 1312 provides an interface between the processing component 1302 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.

The sensor assembly 1314 includes one or more sensors for providing various aspects of state assessment for the device 1300. For example, the sensor assembly 1314 may detect the open/closed state of the device 1300, the relative positioning of components, such as the display and keypad of the device 1300, the change in position of the device 1300 or a component of the device 1300, the presence or absence of user contact with the device 1300, the orientation or acceleration/deceleration of the device 1300, and the change in temperature of the device 1300. The sensor assembly 1314 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 1314 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 1314 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 1316 is configured to facilitate communications between the apparatus 1300 and other devices in a wired or wireless manner. The apparatus 1300 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, 4G LTE, 5G NR, or a combination thereof. In an exemplary embodiment, the communication component 1316 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communications component 1316 also includes a Near Field Communications (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the apparatus 1300 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described positioning measurement information determination methods.

In an exemplary embodiment, a non-transitory computer-readable storage medium comprising instructions, such as the memory 1304 comprising instructions, executable by the processor 1320 of the apparatus 1300 to perform the above-described positioning measurement information determination method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The method and apparatus provided by the embodiments of the present disclosure are described in detail above, and the principle and the implementation of the present disclosure are explained by applying specific embodiments herein, and the description of the above embodiments is only used to help understanding the method and the core idea of the present disclosure; meanwhile, for a person skilled in the art, according to the idea of the present disclosure, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present disclosure.

Claims

A method for determining positioning measurement information, the method being adapted for a first device, the method comprising:

acquiring synchronous errors among a plurality of sending and receiving points;

and determining positioning measurement information according to the synchronization error.
The method of claim 1, wherein the first device is a terminal, and wherein the obtaining synchronization errors between multiple transmission receiving points comprises:

and receiving the synchronization error sent by the core network.
The method of claim 2, wherein the receiving the synchronization error sent by the core network comprises:

and receiving positioning auxiliary information and/or request position information sent by a core network, and acquiring the synchronization error from the positioning auxiliary information and/or the request position information.
The method of claim 1, wherein the first device is a terminal, and wherein the obtaining synchronization errors between multiple transmission receiving points comprises:

and receiving the synchronization error sent by the base station.
The method of claim 4, wherein the receiving the synchronization error sent by the base station comprises:

and receiving positioning system information and/or wireless resource control information sent by a base station, and acquiring the synchronization error from the positioning system information and/or the wireless resource control information.
The method of claim 1, wherein the first device is a core network, and wherein the obtaining synchronization errors between multiple transmission receiving points comprises:

and receiving the synchronization error sent by the base station.
The method of claim 1, wherein the first device is a core network, and wherein the obtaining synchronization errors between multiple transmission/reception points comprises:

and receiving the synchronization error sent by the terminal.
The method according to any one of claims 1 to 7, wherein the positioning measurement information is downlink positioning measurement information, and the first device is a terminal and/or a core network.
The method according to claim 8, wherein the plurality of transceiver points comprise at least a first transceiver point and a second transceiver point, the synchronization error is a synchronization error between the first transceiver point and the second transceiver point, and the positioning measurement information is a time difference between the terminal receiving the positioning reference signal of the first transceiver point and the positioning reference signal of the second transceiver point;

the determining the positioning measurement information according to the synchronization error comprises:

and adjusting the time difference according to the synchronization error.
The method according to any of claims 1 to 7, wherein the positioning measurement information is uplink positioning measurement information, and the first device is a core network.
The method according to claim 10, wherein the plurality of transmitting/receiving points comprise at least a first transmitting/receiving point and a second transmitting/receiving point, the synchronization error is a synchronization error between the first transmitting/receiving point and the second transmitting/receiving point, and the positioning measurement information comprises a second time of receiving the channel sounding reference signal of the terminal by the second transmitting/receiving point at a first time of receiving the channel sounding reference signal of the terminal by the first transmitting/receiving point;

the determining the positioning measurement information according to the synchronization error comprises:

adjusting the first time and/or the second time according to the synchronization error.
A synchronization error transmitting method, adapted to a second device, the method comprising:

determining synchronization errors among a plurality of transmitting and receiving points;

and sending the synchronization error to first equipment so that the first equipment can determine positioning measurement information according to the synchronization error.
The method of claim 12, wherein the second device is a core network, the first device is a terminal, and the sending the synchronization error to the first device comprises:

and sending positioning auxiliary information and/or request position information to the terminal, wherein the positioning auxiliary information and/or the request position information carry the synchronization error.
The method of claim 12, wherein the second device is a base station, wherein the first device is a terminal, and wherein the sending the synchronization error to the first device comprises:

and sending positioning system information and/or radio resource control information to the terminal, wherein the positioning system information and/or the radio resource control information carry the synchronization error.
The method of claim 12, wherein the second device is a base station and the first device is a core network.
The method of claim 12, wherein the second device is a terminal and the first device is a core network.
The method according to any of claims 12 to 16, wherein the plurality of transceiver points comprises at least a first transceiver point and a second transceiver point, and wherein determining the synchronization error between the plurality of transceiver points comprises:

determining a first round-trip delay between the first transmitting and receiving point and the terminal and a second round-trip delay between the second transmitting and receiving point and the second terminal;

acquiring the time difference between the terminal receiving the positioning reference signal of the first sending and receiving point and the positioning reference signal of the second sending and receiving point;

and determining a synchronization error between the first sending and receiving point and the second sending and receiving point according to the time difference, the first round-trip delay and the second round-trip delay.
The method according to any of claims 12 to 16, wherein the plurality of transceiver points comprises at least a first transceiver point and a second transceiver point, and wherein determining the synchronization error between the plurality of transceiver points comprises:

and determining the synchronization error between the first transmitting and receiving point and the second transmitting and receiving point according to the intrinsic parameter information of the first transmitting and receiving point and the intrinsic parameter information of the second transmitting and receiving point.
A positioning measurement information determination apparatus, adapted for use with a first device, the apparatus comprising:

an error acquisition module configured to acquire synchronization errors between a plurality of transmission receiving points;

an information determination module configured to determine positioning measurement information from the synchronization error.
A synchronization error transmission apparatus adapted to a second device, the apparatus comprising:

an error determination module configured to determine synchronization errors between a plurality of transmit receive points;

an error sending module configured to send the synchronization error to a first device for the first device to determine positioning measurement information according to the synchronization error.
An electronic device, comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to perform the positioning measurement information determination method of any one of claims 1 to 11 and/or the synchronization error transmission method of any one of claims 12 to 18.
A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, is adapted to carry out the positioning measurement information determination method of any one of claims 1 to 11 and/or the steps of the synchronization error transmission method of any one of claims 12 to 18.