Title:
CELLULAR NETWORK-BASED POSITIONING FOR NON-TERRESTRIAL NETWORK
Document Type and Number:
WIPO Patent Application WO/2023/050126
Kind Code:
A1
Abstract:
Aspects presented herein may enable a positioning entity (e.g., a UE, a base station, a TRP, or an LMF, etc. ) to take changes in propagation delay into consideration when calculating RTT or measuring Rx-Tx timing difference for signals transmitted between a UE and a non-terrestrial device. In one aspect, a UE measures a plurality of PRSs transmitted from a non-terrestrial device. The UE calculates a propagation delay change between the UE and the non-terrestrial device based on a TDOA of the plurality of PRSs. The UE transmits, to an LMF or a location server, a UE Rx-Tx time difference associated with a UE positioning session and the propagation delay change.
Inventors:
WEI CHAO (US)
DAI JING (US)
LI QIAOYU (US)
XU HAO (US)
ZHANG DANLU (US)
DAI JING (US)
LI QIAOYU (US)
XU HAO (US)
ZHANG DANLU (US)
Application Number:
PCT/CN2021/121614
Publication Date:
April 06, 2023
Filing Date:
September 29, 2021
Export Citation:
Assignee:
QUALCOMM INC (US)
WEI CHAO (CN)
DAI JING (CN)
LI QIAOYU (CN)
XU HAO (CN)
ZHANG DANLU (US)
WEI CHAO (CN)
DAI JING (CN)
LI QIAOYU (CN)
XU HAO (CN)
ZHANG DANLU (US)
International Classes:
H04W4/02; H04W64/00
Domestic Patent References:
| WO2021155578A1 | 2021-08-12 | |||
| WO2021086244A1 | 2021-05-06 |
Foreign References:
| CN113273267A | 2021-08-17 | |||
| CN112673269A | 2021-04-16 |
Other References:
QUALCOMM INCORPORATED: "UE positioning methods for NTN", 3GPP DRAFT; R2-2105435, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG2, no. E-Meeting; 20210519 - 20210527, 11 May 2021 (2021-05-11), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP052007038
Attorney, Agent or Firm:
NTD PATENT & TRADEMARK AGENCY LTD. (CN)
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