Title:
GLOBAL NAVIGATION SATELLITE SYSTEM (GNSS) STARTING METHOD AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2022/122019
Kind Code:
A1
Abstract:
A global navigation satellite system (GNSS) starting method and apparatus. The GNSS starting method comprises: receiving a GNSS positioning request (S601); determining the number of long term evolution (LTE) frames, wherein the number of LTE frames is the number of LTE frames received between the end time of the previous cold start of a GNSS and the time of receiving the GNSS positioning request (S602); determining a GNSS sleep time according to the number of LTE frames (S603); and according to the GNSS sleep time, determining a start mode of the GNSS, wherein the start mode is a cold start mode or a hot start mode. By means of the mode, a terminal device performs timing on the sleep time by means of an LTE frame, thereby improving the accuracy of the sleep time.
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Inventors:
YAN LONG (CN)
LI ZHIFANG (CN)
YANG JIANG (CN)
LI ZHIFANG (CN)
YANG JIANG (CN)
Application Number:
PCT/CN2021/137106
Publication Date:
June 16, 2022
Filing Date:
December 10, 2021
Export Citation:
Assignee:
UNISOC CHONGQING TECH CO LTD (CN)
International Classes:
G01C25/00
Foreign References:
| CN112612040A | 2021-04-06 | |||
| CN111475209A | 2020-07-31 | |||
| CN101094496A | 2007-12-26 | |||
| CN107454253A | 2017-12-08 | |||
| CN110162418A | 2019-08-23 | |||
| US10180498B1 | 2019-01-15 |
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
Download PDF:
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