Title:
LOCAL CLOCK CALIBRATION METHOD, USER EQUIPMENT AND COMPUTER-READABLE STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2023/029952
Kind Code:
A1
Abstract:
A local clock calibration method, which is applied to a user equipment (UE). The method comprises: acquiring a system frame that is periodically sent by a base station, wherein the system frame comprises a system information block (SIB), and the SIB comprises a first sending moment at which the base station sends the system frame (S200); according to the first sending moment and the frame length of the system frame, determining a second sending moment at which the base station sends the SIB (S300); determining the length of a reference unit period according to a time interval between periodically obtained second sending moments (S400); and adjusting the frequency of a crystal oscillator of the UE according to the length of the reference unit period and a period length value, which is sent by the base station, such that a local time unit period of the UE is synchronized with the reference unit period (S500).
Inventors:
WANG XIAOJIAN (CN)
Application Number:
PCT/CN2022/112228
Publication Date:
March 09, 2023
Filing Date:
August 12, 2022
Export Citation:
Assignee:
ZTE CORP (CN)
International Classes:
H04W56/00
Foreign References:
| CN111417186A | 2020-07-14 | |||
| CN105188128A | 2015-12-23 | |||
| US20190306821A1 | 2019-10-03 | |||
| CN102045638A | 2011-05-04 | |||
| CN111989963A | 2020-11-24 |
Other References:
"3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; Base Station (BS) radio transmission and reception (Release 15)", 3GPP STANDARD; TECHNICAL SPECIFICATION; 3GPP TS 38.104, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG4, no. V15.0.0, 9 January 2018 (2018-01-09), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , pages 1 - 121, XP051392565
Attorney, Agent or Firm:
JIAQUAN IP LAW (CN)
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