The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 09, 2025
Filed:
Apr. 20, 2023
Huawei Technologies Co., Ltd., Shenzhen, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
A communication method and apparatus are provided. The method includes: receiving a first time difference from a second communication apparatus; determining a round trip time RTT based on the first time difference and a second time difference; and sending a second message to a terminal device, where the second message includes the RTT, an air interface propagation delay, or terminal device side timing information, a value of the air interface propagation delay is equal to half of a value of the RTT, and the terminal device side timing information is determined based on the air interface propagation delay. According to the method and the apparatus in embodiments of this application, high-precision timing between a network device and the terminal device in a CU-DU separation architecture can be implemented.