Title:
COMMUNICATION PARAMETER INDICATION METHOD AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2022/228181
Kind Code:
A1
Abstract:
The present application provides a communication parameter indication method and apparatus, for use in reducing the time drift in satellite communications. In the method, a terminal device can obtain first information, the first information being used for indicating the number of time units of a first message; the first information being related to the relative speed of a network device and the terminal device. The terminal device can send the first message according to the number of time units. On the basis of the above solution, the terminal device can be instructed by the first information to transmit the number of time units of the first message, so that the time drift generated by the timing advance (TA) value is reduced, and the transmission performance of an uplink signal can be improved.
Inventors:
CHEN YING (CN)
WANG JUN (CN)
LI RONG (CN)
QIAO YUNFEI (CN)
WANG JUN (CN)
LI RONG (CN)
QIAO YUNFEI (CN)
Application Number:
PCT/CN2022/087392
Publication Date:
November 03, 2022
Filing Date:
April 18, 2022
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04W28/02
Foreign References:
| CN112399546A | 2021-02-23 | |||
| US20190394770A1 | 2019-12-26 |
Other References:
ASIA PACIFIC TELECOM, FGI, ITRI, III: "Time and frequency synchronization to NB-IoT in NTN", 3GPP DRAFT; R1-2102736, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20210412 - 20210420, 7 April 2021 (2021-04-07), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France, XP052177729
MODERATOR (NTT DOCOMO, INC.), NOKIA, NOKIA SHANGHAI BELL, THALES: "TP on round trip delay drift rate for NTN scenarios", 3GPP DRAFT; R1-2103936, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20210412 - 20210420, 16 April 2021 (2021-04-16), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051995696
MODERATOR (NTT DOCOMO, INC.), NOKIA, NOKIA SHANGHAI BELL, THALES: "TP on round trip delay drift rate for NTN scenarios", 3GPP DRAFT; R1-2103936, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. e-Meeting; 20210412 - 20210420, 16 April 2021 (2021-04-16), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051995696
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
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