Communication method and apparatus
By acquiring and processing information such as phase measurements and phase errors, the transmission delay between the terminal device and the network device is determined, thus solving the positioning error problem caused by transmission delay in the satellite system and improving positioning accuracy.
WO2026119288A1 Publication Date: 2026-06-11HUAWEI TECH CO LTD
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Patent Information
- Application Number
- PCT/CN2025/140431
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-12-06
- Filing Date
- 2025-12-05
- Publication Date
- 2026-06-11
AI Technical Summary
Technical Problem
In global navigation satellite systems, the transmission delay of reference signals between satellites and terminals causes positioning errors and affects positioning performance.
Method used
By acquiring and processing information such as phase measurements and phase errors, the transmission delay between the terminal device and the network device can be determined, thereby reducing the impact of signal transmission delay within the device and improving positioning accuracy.
Benefits of technology
By reducing transmission delay errors, positioning performance and accuracy are improved.
✦ Generated by Eureka AI based on patent content.
Abstract
A communication method and apparatus, which are applied to the technical field of communications. In the method, on the basis of a phase measurement quantity obtained by measuring a first reference signal that is received by a terminal apparatus and is from a first network apparatus, a phase error obtained by measuring a first signal sent by the terminal apparatus and a direct path signal corresponding to the received first signal, a phase measurement quantity obtained by measuring a second reference signal that is received by the first network apparatus and is from the terminal apparatus, and a phase error obtained by measuring a second signal sent by the first network apparatus and a direct path signal corresponding to the received second signal, a first apparatus determines a delay from the first network apparatus sending the first reference signal to the terminal apparatus receiving the first reference signal, and a delay from the terminal apparatus sending the second reference signal to the first network apparatus receiving the second reference signal. By using a delay determined by means of the method to position a terminal apparatus, the positioning performance can be improved.
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