WO2022155930A1

WO2022155930A1 - Method and apparatus for determining positioning measurement information, and method and apparatus for sending synchronization error

Info

Publication number: WO2022155930A1
Application number: PCT/CN2021/073423
Authority: WO
Inventors: 李小龙
Original assignee: 北京小米移动软件有限公司
Priority date: 2021-01-22
Filing date: 2021-01-22
Publication date: 2022-07-28
Also published as: CN115119535A

Abstract

The present disclosure relates to a method for determining positioning measurement information, comprising: acquiring a synchronization error between a plurality of transmission reception points, and determining the positioning measurement information according to the synchronization error. According to the present disclosure, the synchronization error between the transmission reception points may be obtained, and the positioning measurement information is then determined according to the synchronization error so as to eliminate deviation in the positioning measurement information caused by the synchronization error. For example, after initial positioning measurement information is obtained, the initial positioning measurement information may be adjusted according to the synchronization error, and a position is then determined according to the adjusted positioning measurement information, thereby ensuring positioning accuracy.

Description

Method and device for determining positioning measurement information, and method and device for transmitting synchronization error

technical field

The present disclosure relates to the field of communication technologies, and in particular, to a method for determining positioning measurement information, a method for sending synchronization errors, a device for determining positioning measurement information, a device for sending synchronization errors, electronic devices, and computer-readable storage media.

Background technique

A variety of positioning technologies have been introduced in 5G communications to locate terminals, such as uplink positioning technology, downlink positioning technology, and a combination of downlink positioning and uplink positioning.

For downlink positioning, the terminal can receive reference signals sent by different transmission and reception points (Transmission and Reception Point, TRP for short), and determine the time when each reference signal is received, and then determine the arrival time difference of the reference signal according to the time. Signal Time Difference, RSTD for short), and then locate according to the arrival time difference.

For uplink positioning, different transmitting and receiving points can receive the reference signal sent by the terminal, and determine the time when each transmitting and receiving point receives the reference signal, and then determine the relative time of arrival of the reference signal (Relative Time Of Arrival, RTOA for short), and then perform positioning according to the relative arrival time.

It can be seen that, regardless of downlink positioning or uplink positioning, cooperation between multiple transmitting and receiving points is required, so synchronization between multiple transmitting and receiving points is required, otherwise the positioning accuracy will be affected. However, due to various reasons, there will be more or less synchronization errors between different sending and receiving points, resulting in asynchrony between the sending and receiving points, which in turn affects the positioning accuracy.

SUMMARY OF THE INVENTION

In view of this, the embodiments of the present disclosure propose a method for determining positioning measurement information, a method for transmitting synchronization error, a device for determining positioning measurement information, a device for transmitting synchronization error, an electronic device, and a computer-readable storage medium, so as to solve the 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 applicable to a first device, and the method includes:

Obtain the synchronization error between multiple sending and receiving points;

Positioning measurement information is determined 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 applicable to a second device, and the method includes:

Determine the synchronization error between multiple sending and receiving points;

The synchronization error is sent to the first device for the first device to 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 applicable to a second device, and the method includes:

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

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

An error sending module configured to send the synchronization error to a first device, so that the first device can determine positioning measurement information according to the synchronization error.

According to a fifth aspect of the embodiments of the present disclosure, an embodiment of the present disclosure is provided and an electronic device is also provided, including:

processor;

memory for storing processor-executable instructions;

Wherein, the processor is configured to execute the above-mentioned method for determining positioning measurement information, and/or the above-mentioned method for sending synchronization error.

According to a sixth aspect of the embodiments of the present disclosure, a computer-readable storage medium is provided on which a computer program is stored, and when the program is executed by a processor, the above-mentioned method for determining positioning measurement information and/or the above-mentioned method for sending synchronization error is implemented. A step of.

According to the embodiments of the present disclosure, the synchronization error between the transmitting and receiving points can be obtained, and then the positioning measurement information can be determined according to the synchronization error, so as to eliminate the deviation caused by the synchronization error in the positioning measurement information. The initial positioning measurement information is adjusted according to the synchronization error, and then the position is determined according to the adjusted positioning measurement information, which is beneficial to ensure the accuracy of the positioning.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present disclosure more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative labor.

FIG. 1 is a schematic flowchart of a method for determining positioning measurement information according to an embodiment of the present disclosure.

FIG. 2 is a schematic flowchart of another method for determining positioning measurement information according to an embodiment of the present disclosure.

FIG. 3 is a schematic flowchart of yet another method for determining positioning measurement information according to an embodiment of the present disclosure.

FIG. 4 is a schematic flowchart of yet another method for determining positioning measurement information according to an embodiment of the present disclosure.

FIG. 5 is a schematic flowchart of yet another method for determining positioning measurement information according to an embodiment of the present disclosure.

FIG. 6 is a schematic flowchart of a method for sending synchronization errors according to an embodiment of the present disclosure.

FIG. 7 is a schematic flowchart of another method for sending synchronization errors according to an embodiment of the present disclosure.

FIG. 8 is a schematic flowchart of determining location information according to an embodiment of the present disclosure.

FIG. 9 is another schematic flowchart of determining location information according to an embodiment of the present disclosure.

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

FIG. 11 is a schematic block diagram of a synchronization error sending apparatus according to an embodiment of the present disclosure.

FIG. 12 is a schematic block diagram of an apparatus for sending synchronization errors according to an embodiment of the present disclosure.

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

Detailed ways

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, but not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present disclosure.

Those skilled in the art can understand that the technical solutions of each embodiment may be implemented independently or together with any other technical solutions in the embodiments of the present disclosure, which are not limited in the embodiments of the present disclosure.

FIG. 1 is a schematic flowchart of a method for determining positioning measurement information according to an embodiment of the present disclosure. The method for determining positioning measurement information shown in this embodiment may be applicable to a first device, where the first device may be a terminal or a core network, and specifically may be an access and mobility management function (Access and Mobility Management) in the core network Management Function, AMF for short) or Location Management Function (LMF for short).

The terminals include but are not limited to electronic devices such as mobile phones, tablet computers, wearable devices, sensors, and Internet of Things devices. The terminal can be used as user equipment to communicate with base stations and core networks. The base stations include but are not limited to base stations in communication systems such as 4G base stations, 5G base stations, and 6G base stations. The core networks include but are not limited to 4G core networks and 5G core networks. network, 6G core network and other communication systems in the base station.

As shown in FIG. 1 , the method for determining positioning measurement information may include the following steps:

In step S101, a synchronization error between multiple transmission and reception points is acquired; wherein, the transmission and reception point may be a base station.

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

In one embodiment, the synchronization error between multiple transmission and reception points used in the positioning process may be acquired, and specifically, the synchronization error between every two transmission and reception points in the multiple transmission and reception points may be acquired.

For example, the positioning process requires the participation of three transmitting and receiving points TRP, namely TRP1, TRP2 and TRP3, then the obtained synchronization errors include: synchronization error error1 between TRP1 and TPR2, synchronization error error2 between TRP1 and TPR3, TRP2 and TPR3 Synchronization error between error3.

In one embodiment, there may be various reasons for the synchronization error, for example, synchronization errors caused by asynchronous clock synchronization between different sending and receiving points, and synchronization errors caused by different hardware processing times between different sending and receiving points.

In one embodiment, the synchronization error may be obtained from the second device, wherein the first device and the second device may be the same device, that is, 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 the core network and the second device is the terminal, then the synchronization error can be determined by the terminal, and then the terminal sends the determined synchronization error to the core network; One device is the core network, and the second device is a base station, such as a base station where multiple transmission and reception points are located, the synchronization error can be determined by the base station, and then the base station sends 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 foregoing embodiments, and can be flexibly adjusted according to specific situations. In addition, the manner in which the second device determines the synchronization error will be described in 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 the reference signal time difference RSTD for downlink positioning, and may be relative arrival time RTOA for uplink positioning.

According to the embodiments of the present disclosure, the synchronization error between the transmitting and receiving points can be obtained, and then the positioning measurement information can be determined according to the synchronization error, so as to eliminate the deviation caused by the synchronization error in the positioning measurement information. After the positioning measurement information not adjusted by the synchronization error), 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 ensure the accuracy of positioning.

FIG. 2 is a schematic flowchart of another method for determining positioning measurement information according to 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 sending and 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, wherein 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 synchronization error sent by the receiving core network includes:

The positioning assistance information and/or the requested location information sent by the core network are received, and the synchronization error is acquired from the positioning assistance information and/or the requested location information.

In one embodiment, when 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 during the positioning process.

For example, the core network can send the positioning assistance information LPP Provide Assistance Data to the terminal, then the core network can carry the synchronization error in the positioning assistance information and send it to the terminal.

For example, the core network can send the request location information LPP Request Location Information to the terminal, then the core network can carry the synchronization error in the request location information and send it to the terminal.

The LPP refers to the LTE (Long Term Evolution, long term evolution) positioning protocol.

FIG. 3 is a schematic flowchart of yet another method for determining positioning measurement information 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 sending and receiving points includes:

In step S301, the synchronization error sent by the base station is received.

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

In one embodiment, the synchronization error sent by the receiving base station includes:

The positioning system information and/or the radio resource control information sent by the base station are received, and the synchronization error is acquired from the positioning system information and/or the radio resource control information.

In one embodiment, when the base station sends the synchronization error to the terminal, the base station may carry the synchronization error in the positioning system information and send it to the terminal. The positioning system information may be broadcast by the base station, and the positioning system information may carry positioning assistance information in addition to the synchronization error.

In one embodiment, when the base station sends the synchronization error to the terminal, the base station may carry the synchronization error in radio resource control (Radio Resource Control, RRC for short) information and send it to the terminal.

FIG. 4 is a schematic flowchart of yet another method for determining positioning measurement information 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 sending and receiving 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 to the core network by the base station, for example, the base station carries the synchronization error in an NRPPa (NR Positioning Protocol A) message and sends it to the core network. The synchronization error may be determined by the base station and sent to the core network by the base station.

FIG. 5 is a schematic flowchart of yet another method for determining positioning measurement information according to an embodiment of the present disclosure. As shown in Figure 5, in some embodiments, the first device is a core network, and the acquisition of synchronization errors between multiple transmission and reception points includes:

In step S501, the synchronization error sent 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 carries the synchronization error in the positioning information LPP Provide Location Information and sends it to the core network. The synchronization error is determined by the base station, and the base station first 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 an embodiment, when the positioning measurement information is downlink positioning measurement information, the initial positioning measurement information is generally determined by the terminal.

For example, when the terminal determines the positioning measurement information according to the synchronization error, the terminal can determine the arrival time difference of the positioning reference signals of different TRPs, referred to as the reference signal time difference RSTD, then the reference signal time difference can be adjusted according to the synchronization error, and then the adjusted reference signal The time difference is sent to the core network; if the terminal further determines the location information according to the reference signal time difference, the location information can be adjusted according to the synchronization error, and then the adjusted location information is sent to the core network.

For example, when the core network determines the positioning measurement information according to the synchronization error, after determining the initial positioning measurement information, the terminal may send the initial positioning measurement information to the core network, and the core network adjusts the initial positioning measurement information according to the synchronization error, so as to Get 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 then determine the location information according to the adjusted reference signal time difference; After obtaining the location information, the location information is sent to the core network, and the core network can adjust the location information according to the synchronization error, and then determine the location of the terminal according to the adjusted location information.

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

In an embodiment, the plurality of transmission and reception points include at least a first transmission and reception point and a second transmission and reception point, and the synchronization error is a synchronization error between the first transmission and reception point and the second transmission and reception point, so The positioning measurement information is 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;

The determining of the positioning measurement information according to the synchronization error includes:

The time difference is adjusted according to the synchronization error.

In an 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 terminal receives the first transmission and reception point TRP2. The time difference between the positioning reference signal of the receiving point TRP1 and the positioning reference signal of the second transmitting and receiving point TRP2 is RSTD, then the time difference can be adjusted according to the synchronization error to eliminate the deviation caused by error1 in RSTD, for example, subtract error1 from RSTD As the adjusted RSTD, the location information is determined according to the adjusted RSTD, which is beneficial to ensure the accuracy of positioning.

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

In one embodiment, when the positioning measurement information is uplink positioning measurement information, the base station generally determines the initial positioning measurement information.

For example, in the case where the core network determines the positioning measurement information according to the synchronization error, after determining the initial positioning measurement information, the base station may send the initial positioning measurement information to the core network, and the core network adjusts the initial positioning measurement information according to the synchronization error to Get the adjusted positioning measurement information. The base station can determine the relative arrival time, and then send the relative arrival time to the core network. The core network can adjust the relative arrival time according to the synchronization error, and then determine the position information according to the adjusted relative arrival time; if the base station further determines the relative arrival time according to the relative arrival time After obtaining the location information, the location information is sent to the core network, and the core network can adjust the location information according to the synchronization error, and then determine the location of the terminal according to the adjusted location information.

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

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

The first time and/or the second time are adjusted 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 first transmission and reception point receives The first time of the channel sounding reference signal to the terminal is RTOA1, and the second time when the second transmitting and receiving point receives the channel sounding reference signal of the terminal is RTOA2, then RTOA1 and/or RTOA2 can be adjusted according to the synchronization error.

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

It is also possible to adjust only RTOA2 according to the synchronization error, for example, adding error1 to RTOA2 as the adjusted RTOA2, and then determining the position information according to RTOA1 and the adjusted RTOA2, which is beneficial to ensure the accuracy of positioning.

It is also possible to adjust both RTOA2 and RTOA1 according to the synchronization error. For example, if error1 is divided into two parts, errorX and errorY, RTOA1 minus errorX can be used as the adjusted RTOA1, and RTOA2 plus errorY can be used as the adjusted RTOA2, and then The location information is determined according to the adjusted RTOA1 and the adjusted RTOA2, which is beneficial to ensure the accuracy of the positioning.

FIG. 6 is a schematic flowchart of a method for sending synchronization errors according to an embodiment of the present disclosure. The method for sending synchronization errors shown in this embodiment may be applied to a second device, and the second device may be a base station or a core network, and specifically may be an access and mobility management function AMF or a positioning management function in the core network LMF.

Wherein, the base station and the core network can communicate with the terminal as the user equipment, the base station includes but is not limited to the base stations in communication systems such as 4G base station, 5G base station, 6G base station, etc., the core network includes but is not limited to the 4G core network , 5G core network, 6G core network and other base stations in communication systems.

As shown in FIG. 6 , the method for determining positioning measurement information may include the following steps:

In step S601, determine the synchronization error between multiple sending and receiving points;

In step S602, the synchronization error is sent to a first device for the first device to determine positioning measurement information according to the synchronization error.

In one embodiment, the synchronization error between multiple transmission and reception points used in the positioning process may be determined, and specifically, the synchronization error between every two transmission and reception points in the multiple transmission and reception points may be determined.

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

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

In one embodiment, the first device and the second device may be the same device, that is, 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 the core network and the second device is the terminal, then the synchronization error can be determined by the terminal, and then the terminal sends the determined synchronization error to the core network; One device is the core network, and the second device is a base station, such as a base station where multiple transmission and reception points are located, the synchronization error can be determined by the base station, and then the base station sends the determined synchronization error to the core network.

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

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:

Sending positioning assistance information and/or requested location information to the terminal, wherein the positioning assistance information and/or requested location information carries the synchronization error.

In an 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:

Sending positioning system information and/or radio resource control information to the terminal, wherein the positioning system information and/or radio resource control information carries the synchronization error.

In one embodiment, when the base station sends the synchronization error to the terminal, the base station may carry the synchronization error in the radio resource control RRC information and send it to the terminal.

In one embodiment, the second device is a base station, the first device is a core network, and the synchronization error may be sent by the base station to the core network. For example, the base station carries the synchronization error in an NRPPa (NR Positioning Protocol A) message and sends it to the core network. The synchronization error may be determined by the base station and sent to the core network by the base station.

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

The following mainly describes several ways of determining the synchronization error with respect to the first transmission and reception point TRP1 and the second transmission and reception point TRP2 in the plurality of transmission and reception points.

FIG. 7 is a schematic flowchart of another method for sending synchronization errors according to an embodiment of the present disclosure. As shown in FIG. 7 , in some embodiments, the multiple sending and receiving points include at least a first sending and receiving point and a second sending and receiving point, and the determining a synchronization error between the multiple sending and receiving points includes:

In step S701, determine the first round-trip delay between the first sending and receiving point and the terminal and the second round-trip delay (Round-Trip Time, RTT for short) between the second sending and receiving point and the second terminal;

In step S702, obtain 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;

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

In one embodiment, the first round-trip delay RTT1 between the first sending and receiving point and the terminal and the second round-trip delay RTT2 between the second sending and receiving point and the second terminal may be determined first.

Wherein, for different sending and receiving points, the manner of determining the round-trip delay between them and the terminal may be the same. Taking the first sending and receiving point TPR1 as an example, TRP1 sends a downlink reference signal to the terminal. After receiving the downlink reference signal, the terminal sends an uplink reference signal to TRP1. The time when TRP1 sends the downlink reference signal is t1, and the terminal receives the downlink reference signal. The time t2 is the time when the TRP1 transmits the uplink reference signal, and the time when the TRP1 receives the downlink reference signal is t4.

The duration t3-t2 from t2 to t3 can be understood as the internal processing duration of the terminal, and the duration t4-t1 from t1 to t4 includes the transmission duration of the downlink signal from TRP1 to the terminal, the internal processing duration of the terminal, and the uplink reference signal from the terminal to TRP1. The transmission duration, then subtract t3-t2 from t4-t1, and the remainder is the transmission duration of the downlink signal from TRP1 to the terminal, and the transmission duration of the uplink reference signal from the terminal to TRP1, that is, the first round-trip duration RTT1. RTT2 can be calculated in a similar manner.

It should be noted that the above method of calculating the round-trip delay according to the sending and receiving time of the reference signal is just an example, and other methods 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 may also be determined. Further, the synchronization error=RSTD-1/2*(RTT1-RTT2) can be calculated according to RSTD, RTT1 and RTT2.

In some embodiments, the multiple sending and receiving points include at least a first sending and receiving point and a second sending and receiving point, and the determining a synchronization error between the multiple sending and receiving points includes:

According to the inherent parameter information of the first transmission and reception point and the inherent parameter information of the second transmission and reception point, the synchronization error between the first transmission and reception point and the second transmission and reception point is determined.

In one embodiment, specific inherent parameter information about itself, such as clock, hardware processing time, etc., may be pre-stored in the transmitting and receiving point, and the base station where the transmitting and receiving point is located may be determined according to the difference in the inherent parameter information between the transmitting and receiving points For the synchronization error between the sending and receiving points, the sending and receiving point can 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, so 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 specifically refer to a certain sending and receiving point, but refer to any two different sending and receiving points among the multiple sending and receiving points used in the positioning process. a sending and receiving point.

FIG. 8 is a schematic flowchart of determining location information according to an embodiment of the present disclosure. As shown in Figure 8, taking the following row positioning as an example, the process of determining the location information may include the following steps:

Step S801, the core network sends capability request information LPP Request Capabilities to the terminal;

Step S802, the terminal sends capability information LPP Provide Capabilities to the core network;

Step S803, the core network sends positioning assistance information LPP Provide assistance information to the terminal;

Step S804, the core network sends the request location information LPP Request Location Information to the terminal;

The synchronization error may be carried in the positioning assistance information or in the requested 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 gap for the terminal;

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

Step S807, the terminal measures the positioning reference signal in the configuration to obtain initial positioning measurement information such as RSTD or position information, and then adjusts the initial positioning measurement information through synchronization errors;

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

FIG. 9 is another schematic flowchart of determining location information according to an embodiment of the present disclosure. As shown in FIG. 9 , taking the uplink positioning as an example, the process of determining the location information may include the following steps:

Step S901, the core network sends capability request information LPP Request Capabilities to the terminal;

Step S902, the terminal sends capability information LPP Provide 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 the configuration of the Sounding Reference Signal (Sounding Reference Signal, SRS for short) and sends it to the terminal;

Step S905, the base station sends the 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 activating the terminal to send the sounding reference signal, the base station sends the 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;

In step S909, the base station (specifically, the 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 errors;

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 the 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 can be determined according to its context. In addition, multiple transmitting and receiving points may all be located in the same base station, or may be located in different base stations, for example, the transmitting and receiving points are the base station itself, which can be set as required.

Corresponding to the foregoing embodiments of the positioning measurement information determination method and the synchronization error transmission method, the present disclosure also provides embodiments of a positioning measurement information determination apparatus and a synchronization error transmission apparatus.

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

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

An error obtaining module 1001, configured to obtain synchronization errors between multiple sending and receiving points;

The information determination module 1002 is configured to determine positioning measurement information according to the synchronization error.

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

In one embodiment, the error obtaining module is configured to receive the positioning assistance information and/or the requested location information sent by the 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 acquisition module is configured to receive the synchronization error sent by the 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 one embodiment, the first device is a core network, and the error acquisition module is configured to receive the synchronization error sent by the base station.

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

The information determination module is 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 of a synchronization error sending apparatus according to an embodiment of the present disclosure. The synchronization error sending apparatus shown in this embodiment may be applied to a second device, and the second device may be a base station or a core network, and specifically may be an access and mobility management function AMF or a positioning management function in the core network LMF.

Wherein, the base station and the core network can communicate with the terminal as the user equipment, the base station includes but is not limited to the base station in communication systems such as 4G base station, 5G base station, 6G base station, etc., the core network includes but is not limited to the 4G core network , 5G core network, 6G core network and other base stations in communication systems.

As shown in Figure 11, the positioning measurement information determination device may include:

An error determination module 1101, configured to determine synchronization errors between multiple transmission and reception points;

The error sending module 1102 is configured to send the synchronization error to a first device, so that the first device can determine positioning measurement information according to the synchronization error.

In one 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, wherein the The positioning assistance information and/or the requested location information carry the synchronization error.

In one 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, wherein the The synchronization error is carried in the positioning system information and/or the radio resource control information.

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 an embodiment, the plurality of transmission and reception points include at least a first transmission and reception point and a second transmission and reception point, and the error determination module is configured to determine a first round trip between the first transmission and reception point and the terminal the delay and the second round-trip delay between the second sending 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;

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

In one embodiment, the plurality of transmission and reception points include at least a first transmission and reception point and a second transmission and reception point, and the error determination module is configured to The inherent parameter information of the second transmission and reception point is used to determine the synchronization error between the first transmission and reception point and the second transmission and reception point.

Regarding the apparatuses in the foregoing embodiments, the specific manners in which each module performs operations have been described in detail in the embodiments of the related methods, and will not be described in detail here.

For the apparatus embodiments, since they basically correspond to the method embodiments, reference may be made to the partial descriptions of the method embodiments for related parts. The device embodiments described above are only illustrative, wherein the modules described as separate components may or may not be physically separated, and the components shown as modules may or may not be physical modules, that is, they may be located in One place, or it can be distributed over multiple network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution in this embodiment. Those of ordinary skill in the art can understand and implement it without creative effort.

Embodiments of the present disclosure also provide an electronic device, including:

processor;

memory for storing processor-executable instructions;

The processor is configured to execute the method for determining positioning measurement information described in any of the foregoing embodiments, and/or the method for sending synchronization errors described in any of the foregoing embodiments.

Embodiments of the present disclosure further provide a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, implements the method for determining positioning measurement information described in any of the foregoing embodiments, and/or any of the foregoing Steps in the synchronization error sending method described in the embodiment.

As shown in FIG. 12 , FIG. 12 is a schematic block diagram of an apparatus 1200 for sending synchronization errors according to an embodiment of the present disclosure. The apparatus 1200 may be provided as a base station. 12, apparatus 1200 includes a processing component 1222, a wireless transmit/receive component 1224, an antenna component 1226, and a signal processing portion specific to a wireless interface, which 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 described in any of the foregoing embodiments.

FIG. 13 is a schematic block diagram of an apparatus 1300 for determining positioning measurement information according to an embodiment of the present disclosure. For example, apparatus 1300 may be a mobile phone, computer, digital broadcast terminal, messaging device, game console, tablet device, medical device, fitness device, personal digital assistant, and the like.

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

The processing component 1302 generally controls the overall operation of the device 1300, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 1302 may include one or more processors 1320 to execute instructions to complete all or part of the steps of the above-described method for determining positioning measurement information. Additionally, processing component 1302 may include one or more modules that facilitate interaction between processing component 1302 and other components. For example, processing component 1302 may include a multimedia module to facilitate interaction between multimedia component 1308 and processing component 1302.

Memory 1304 is configured to store various types of data to support operations at device 1300 . Examples of such data include instructions for any application or method operating on device 1300, contact data, phonebook data, messages, pictures, videos, and the like. Memory 1304 may be implemented by any type of volatile or nonvolatile storage device or combination thereof, 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 Disk.

Power supply component 1306 provides power to 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 to device 1300 .

Multimedia component 1308 includes a screen that provides an output interface between the device 1300 and the user. 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 input signals from a user. The touch panel includes one or more touch sensors to sense touch, swipe, and gestures on the touch panel. The touch sensor may not only sense the boundaries of a touch or swipe action, but also detect the duration and pressure associated with the touch or swipe action. In some embodiments, the multimedia component 1308 includes a front-facing camera and/or a rear-facing camera. When the apparatus 1300 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each of the front and rear cameras can be a fixed optical lens system or have focal length and optical zoom capability.

Audio component 1310 is configured to output and/or input audio signals. For example, audio component 1310 includes a microphone (MIC) that is configured to receive external audio signals when device 1300 is in operating modes, such as call mode, recording mode, and voice recognition mode. The received audio signal may be further stored in memory 1304 or transmitted via communication component 1316 . In some embodiments, 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 a peripheral interface module, which may be a keyboard, a click wheel, a button, or the like. These buttons may include, but are not limited to: home button, volume buttons, start button, and lock button.

Sensor assembly 1314 includes one or more sensors for providing status assessment of various aspects of device 1300 . For example, the sensor assembly 1314 can detect the open/closed state of the device 1300, the relative positioning of components, such as the display and keypad of the device 1300, and the sensor assembly 1314 can also detect a change in the 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 temperature change of the device 1300 . Sensor assembly 1314 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact. 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.

Communication component 1316 is configured to facilitate wired or wireless communication between apparatus 1300 and other devices. Device 1300 may access wireless networks based on communication standards, such as WiFi, 2G or 3G, 4G LTE, 5G NR, or a combination thereof. In one 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 communication component 1316 also includes a near field communication (NFC) module to facilitate short-range communication. 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, 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 A gate array (FPGA), a controller, a microcontroller, a microprocessor or other electronic components are implemented for executing the above-mentioned method for determining the positioning measurement information.

In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions, such as a memory 1304 including instructions, is also provided, and the instructions can be executed by the processor 1320 of the apparatus 1300 to complete the above-mentioned method for determining positioning measurement information. For example, the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.

Other embodiments of the present disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common general knowledge or techniques in the technical field not disclosed by this disclosure . The specification and examples are to be regarded as exemplary only, with the true scope and spirit of the disclosure being indicated by the following claims.

It is to be understood that the present disclosure is not limited to the precise structures described above and illustrated in the accompanying 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 should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. The terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion such that a process, method, article or device comprising a list of elements includes not only those elements, but also other not expressly listed elements, or also include elements inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

The methods and devices provided by the embodiments of the present disclosure have been described in detail above, and specific examples are used to illustrate the principles and implementations of the present disclosure. At the same time, for those of ordinary skill in the art, according to the idea of the present disclosure, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be construed as a limitation to the present disclosure. .

Claims

A method for determining positioning measurement information, characterized in that it is applicable to a first device, the method comprising:

Obtain the synchronization error between multiple sending and receiving points;

Positioning measurement information is determined according to the synchronization error.
The method according to claim 1, wherein the first device is a terminal, and the acquiring synchronization errors between multiple sending and receiving points comprises:

The synchronization error sent by the core network is received.
The method according to claim 2, wherein the receiving the synchronization error sent by the core network comprises:

The positioning assistance information and/or the requested location information sent by the core network are received, and the synchronization error is acquired from the positioning assistance information and/or the requested location information.
The method according to claim 1, wherein the first device is a terminal, and the acquiring synchronization errors between multiple sending and receiving points comprises:

The synchronization error sent by the base station is received.
The method according to claim 4, wherein the synchronization error sent by the receiving base station comprises:

The positioning system information and/or the radio resource control information sent by the base station are received, and the synchronization error is acquired from the positioning system information and/or the radio resource control information.
The method according to claim 1, wherein the first device is a core network, and the acquiring synchronization errors between multiple sending and receiving points comprises:

The synchronization error sent by the base station is received.
The method according to claim 1, wherein the first device is a core network, and the acquiring synchronization errors between multiple sending and receiving points comprises:

The synchronization error sent by the terminal is received.
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 transmission and reception points include at least a first transmission and reception point and a second transmission and reception point, and the synchronization error is the first transmission and reception point and the second transmission and reception point The synchronization error between the two, the positioning measurement information is 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;

The determining of the positioning measurement information according to the synchronization error includes:

The time difference is adjusted according to the synchronization error.
The method according to any one 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 transmission and reception points include at least a first transmission and reception point and a second transmission and reception point, and the synchronization error is the first transmission and reception point and the second transmission and reception point The positioning measurement information includes the channel sounding reference received by the second transmission and reception point of the terminal at the first time when the first transmission and reception point receives the channel sounding reference signal of the terminal the second time of the signal;

The determining of the positioning measurement information according to the synchronization error includes:

The first time and/or the second time are adjusted according to the synchronization error.
A synchronization error sending method, characterized in that it is applicable to a second device, the method comprising:

Determine the synchronization error between multiple sending and receiving points;

The synchronization error is sent to the first device for the first device to determine positioning measurement information according to the synchronization error.
The method according to 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:

Sending positioning assistance information and/or requested location information to the terminal, wherein the positioning assistance information and/or requested location information carries the synchronization error.
The method according to claim 12, wherein the second device is a base station, the first device is a terminal, and the sending the synchronization error to the first device comprises:

Sending positioning system information and/or radio resource control information to the terminal, wherein the positioning system information and/or radio resource control information carries the synchronization error.
The method according to claim 12, wherein the second device is a base station, and the first device is a core network.
The method according to claim 12, wherein the second device is a terminal, and the first device is a core network.
The method according to any one of claims 12 to 16, wherein the plurality of transmission and reception points include at least a first transmission and reception point and a second transmission and reception point, and the determining the distance between the plurality of transmission and reception points The synchronization errors include:

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

According to the time difference, the first round-trip delay and the second round-trip delay, a synchronization error between the first sending and receiving point and the second sending and receiving point is determined.
The method according to any one of claims 12 to 16, wherein the plurality of transmission and reception points include at least a first transmission and reception point and a second transmission and reception point, and the determining the distance between the plurality of transmission and reception points The synchronization errors include:

According to the inherent parameter information of the first transmission and reception point and the inherent parameter information of the second transmission and reception point, the synchronization error between the first transmission and reception point and the second transmission and reception point is determined.
An apparatus for determining positioning measurement information, characterized in that it is applicable to a first device, and the apparatus includes:

an error obtaining module, configured to obtain synchronization errors between multiple sending and receiving points;

An information determination module configured to determine positioning measurement information according to the synchronization error.
A synchronization error sending device, characterized in that it is suitable for a second device, and the device includes:

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

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

processor;

memory for storing processor-executable instructions;

Wherein, the processor is configured to execute the positioning measurement information determination method according to any one of claims 1 to 11 and/or the synchronization error sending method according to any one of claims 12 to 18 .
A computer-readable storage medium on which a computer program is stored, characterized in that, when the program is executed by a processor, the method for determining positioning measurement information according to any one of claims 1 to 11, and/or claims Steps in the synchronization error sending method described in any one of 12 to 18.