Title:
A-GNSS AUXILIARY DATA REQUEST METHOD IN INTERNET OF THINGS
Document Type and Number:
WIPO Patent Application WO/2021/088479
Kind Code:
A1
Abstract:
The present invention provides an A-GNSS auxiliary data request method in an Internet of things, comprising: when a GNSS ends capturing the satellite search and captures a sufficient number of satellite signals, requesting to download GNSS auxiliary data of satellites that have been captured and do not have valid ephemerides. The method provided by the present invention can avoid requesting unnecessary GNSS auxiliary data, thereby reducing the number of network connections and the data traffic, and reducing the power consumption. An Internet of things terminal requests the GNSS auxiliary data according to the captured and searched GNSS satellites, which reduces the size of data downloaded from a server. The present invention can further adjust the A-GNSS auxiliary data to adapt to a network protocol of the Internet of things and reduce the transmission interaction by 20% to 50%, thereby reducing the power consumption and the traffic of the terminal. In addition, the format definition of an auxiliary data request message packet has strong applicability, and can omit unnecessary digits, and the setting of a bit-level request effectively reduces the amount of data.
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Inventors:
LU YU (CN)
Application Number:
PCT/CN2020/111389
Publication Date:
May 14, 2021
Filing Date:
August 26, 2020
Export Citation:
Assignee:
NURLINK TECH NANJING LTD (CN)
International Classes:
H04B7/185; H04W4/02; H04W52/02
Foreign References:
| CN110572204A | 2019-12-13 | |||
| CN1296367A | 2001-05-23 | |||
| CN1296367A | 2001-05-23 | |||
| EP2354803A1 | 2011-08-10 | |||
| CN101203770A | 2008-06-18 | |||
| US9927528B2 | 2018-03-27 |
Attorney, Agent or Firm:
NANJING ZHONGLIAN PATENT AGENCY CO., LTD. (CN)
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