PRECISE POSITIONING ENGINE (PPE) BASE STATION SWAP HANDLING

WIPO Patent Application WO/2023/050760

A1

A Precise Positioning Engine (PPE) may use correction information to perform highly accurate Global Navigation Satellite Systems (GNSS) positioning. Transitioning between, or "swapping, " of a first correction information source (e.g., Real-Time Kinematic (RTK) base station) with a second correction information source may be handled using correction information from the first correction information source to update a first state of the PPE. The updated PPE can then be modified by initializing at least ambiguity values of the PPE state. Correction information from the second base can be used to further update the PPE to a second state without a time update at the PPE. By employing this process, embodiments can reduce sudden changes in position estimation due to correction information source swapping, which can often result in resetting of the PPE and a reduced user experience quality.

WO/2019/221763	POSITION AND ORIENTATION TRACKING SYSTEM, APPARATUS AND METHOD
WO/2019/240240	POSITIONING METHOD AND POSITIONING TERMINAL
WO/2011/003087	CARRIER PHASE PROCESSING IN DISCONTINUOUS SATELLITE POSITIONING SYSTEM TRACKING

WANG MIN (US)
LUO NING (US)
YANG YINGHUA (US)
STEPHEN JAMES (US)
ZHANG HAN (US)
PENG YUXIANG (US)
YADATI SATYA SWAROOP (US)
KUMAR ANUPAM (US)

PCT/CN2022/085476

April 06, 2023

April 07, 2022

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QUALCOMM INC (US)
WANG MIN (US)
LUO NING (US)
YANG YINGHUA (US)
STEPHEN JAMES (US)
ZHANG HAN (CN)
PENG YUXIANG (US)
YADATI SATYA SWAROOP (IN)
KUMAR ANUPAM (IN)

G01S19/43

US20170269231A1	2017-09-21
US20170254904A1	2017-09-07
US20210286089A1	2021-09-16
CN113281793A	2021-08-20

NTD PATENT & TRADEMARK AGENCY LTD. (CN)

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