Apparatus for determining user position

Patent metadata

Field	Value
Publication number	US-12452629-B2
Application number	US-202217738298-A
Country	US
Kind code	B2
Filing date	May 6, 2022
Priority date	Nov 14, 2019
Publication date	Oct 21, 2025
Grant date	Oct 21, 2025

Abstract

An apparatus for determining a position of a user device, UE, in a wireless communication system, the wireless communication system comprising one or more of moving transmission reception points, TRPs, wherein the apparatus is configured to: initiate one or more procedures to perform one or more measurements between the UE and the moving TRP, and to obtain one or more measurement results; and receive at least one message from the moving TRP comprising a position information of the moving TRP; wherein the apparatus is capable to estimate the position of the UE using the measurement result and the position of the moving TRP.

First claim

The invention claimed is:

1. An apparatus for determining a position of a user device, UE, in a wireless communication system, the wireless communication system comprising one or more moving transmission reception points, TRPs, the apparatus comprising:
a communication interface;
one or more memories storing instructions; and
one or more processors, which are coupled to the communication interface and the one or more memories, to execute the instructions stored in the one or more memories to implement operations comprising:
initiating one or more procedures to perform one or more measurements between the UE and one of the moving TRPs, and acquiring one or more measurement results; and
receiving at least one message from the one moving TRP, comprising a position information of the one moving TRP,
wherein the position information comprises a position of the one moving TRP and a time the one moving TRP or the UE performed the one or more measurements,
wherein the apparatus is capable of determining the position of the UE, using the one or more measurement results, the position of the one moving TRP, and the time the one moving TRP or the UE performed the one or more measurements,
wherein the operations further comprise acquiring a position time record, and
wherein the position time record provides the apparatus with a position history for the one moving TRP by providing the position of the one moving TRP and a time corresponding to the position of the one moving TRP, or a position displacement from an initial position of the one moving TRP.

2. The apparatus according to claim 1 , wherein the operations further comprise:
sending a request to the one moving TRP and/or the UE to perform a measurement of a signal transmission between the UE and the one moving TRP, and
acquiring from the one moving TRP and/or the UE a measurement result of the measurement of the signal transmission between the UE and the one moving TRP.

3. The apparatus according to claim 2 , wherein:
the request is an Uplink and/or a Downlink procedure,
the operations further comprise:
performing the one or more measurements between the UE and the one moving TRP from one Uplink reference signal transmitted and/or one Downlink reference signal transmitted from the UE and the one moving TRP;
receiving a first message comprising the one or more measurement results from the one moving TRP; wherein the first message comprises time information of the transmitted Downlink reference signal and/or the one or more measurement results from the Uplink reference signal; and/or
receiving a second message comprising the one or more measurement results from the UE; wherein the second message comprises time information of the transmitted Uplink reference signal and/or the one or more measurement results from the Downlink reference signal; and
receiving a third message from the one moving TRP, comprising the position information of the one moving TRP;

the apparatus is capable of estimating the position of the UE using the information in the third message and either one or both of the first and second messages.

4. The apparatus according to claim 1 , wherein the operations further comprise sending the request on-demand by another network entity, or periodically with a configured or preconfigured periodicity.

5. The apparatus according to claim 1 , wherein:
the one or more procedures perform a set of subsequent measurements from the one or more moving TRPs so as to acquire a set of subsequent measurement results,
the at least one message from the moving TRP comprises the position information of the one moving TRP at an initial measurement,
the operations further comprise determining the position information of the one moving TRP at a further measurement using a trajectory of the one moving TRP.

6. The apparatus according to claim 5 , wherein:
the further measurement is a round trip time measurement, RTT,
the position of the moving TRP is different at a time of transmission of a measurement signal from a time of reception of a measurement signal of the further measurement, and
the operations further comprise estimating the position of the UE by solving a positioning equation in least square sense using the trajectory of the one moving TRP for calculating pseudoranges between the UE and each of the position of the one moving TRP where the RTT measurement is made.

7. The apparatus according to claim 1 , wherein the acquired position information comprises one of a quality of the one moving TRP position or a source of the position of the one moving TRP.

8. The apparatus according to claim 1 , wherein the operations further comprise initiating the one or more measurements between the UE and more than one of the one or more moving TRPs.

9. The apparatus according to claim 1 , wherein the apparatus performs a location management function.

10. The wireless communication system according to claim 1 , wherein the apparatus determines the position of the UE without using a Global Navigation Satellite System of the UE.

11. A moving transmission reception point, TRP, for performing one or more measurements between a user device, UE, and the moving TRP, in a wireless communication system, the moving TRP comprising:
a communication interface;
one or more memories storing instructions, and
one or more processors, which are coupled to the communication interface and the one or more memories, to execute the instructions stored in the one or more memories to implement operations comprising:
performing a measurement of a signal transmission between the UE and the moving TRP,
acquiring (a) a moving TRP position information element, IE, indicating a position of the moving TRP at a time of the measurement, or (b) the moving TRP position IE and the time of the measurement, and
sending the moving TRP position IE and/or the time of the measurement,
wherein the operations further comprise providing a position time record to an apparatus for determining a position of a user device, UE, in the wireless communication system, and
wherein the position time record provides the apparatus with a position history for the one moving TRP by providing the position of the one moving TRP and a time corresponding to the position of the one moving TRP, or a position displacement from an initial position of the one moving TRP.

12. A wireless communication system comprising
one or more user devices, UEs;
one or more moving transmission reception points, TRPs, for performing one or more measurements between a UE of the one or more UEs, and one of the one or more moving TRPs, in the wireless communication system, wherein the one moving TRP comprises:
a TRP communication interface;
one or more TRP memories storing instructions, and
one or more TRP processors, which are coupled to the TRP communication interface and the one or more TRP memories, to execute the instructions stored in the one or more TRP memories to implement operations comprising:
performing a measurement of a signal transmission between the UE and the one moving TRP,
acquiring (a) a moving TRP position information element, IE, indicating a position of the one moving TRP at a time of the measurement, or (b) the moving TRP position IE and the time of the measurement, and
sending the moving TRP position IE and/or the time of the measurement; and
an apparatus for determining a position of the UE in the wireless communication system, wherein the apparatus comprises:
an apparatus communication interface;
one or more apparatus memories storing instructions, and
one or more apparatus processors, which are coupled to the apparatus communication interface and the one or

Assignees

• Fraunhofer Ges Forschung

Inventors

• Hofmann Alexander
• Alawieh Mohammad
• Raschkowski Leszek
• Kram Sebastian
• Ghimire Birendra

Classifications

• H04W84/06

  Airborne or Satellite Networks (space-based or airborne stations H04B7/185) · CPC title

• G01S5/009

  Transmission of differential positioning data to mobile · CPC title

• G01S5/0072

  Transmission between mobile stations, e.g. anti-collision systems · CPC title

• G01S19/38

  Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system · CPC title

• G01S13/765

  with exchange of information between interrogator and responder · CPC title