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A method and device for realizing time synchronization

A clock synchronization and data synchronization technology, applied in the field of communication, can solve problems such as increased system cost and complex system architecture, and achieve the effects of low cost, flexible and convenient selection, and simple equipment

Active Publication Date: 2019-05-24
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for distributed architecture base stations, the BBU and RRU are configured separately. If a satellite positioning system is installed on both the BBU and RRU, not only the system architecture is complicated, but also the system cost is greatly increased.

Method used

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  • A method and device for realizing time synchronization
  • A method and device for realizing time synchronization
  • A method and device for realizing time synchronization

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Embodiment Construction

[0017] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, for purposes of illustrating rather than limiting the invention, some specific details are set forth, such as specific embodiments, operating procedures, techniques, etc., in order to provide a thorough understanding of the invention. It will be apparent, however, to one skilled in the art that the present invention may also be practiced in other embodiments that are not limited to these specific details. For example, although the present invention is described based on the base station system of the distributed architecture as an example, and the radio frequency units are all described by taking the remote radio unit RRU of the distributed architecture base station of the master-remote design as an example, the present invention is not limited to the implementation The main-remote design of the distributed architecture base...

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Abstract

The invention discloses a method for realizing time synchronization and a base station system. The base station system comprises a main unit, at least one remote radio unit, an optical fiber and a clock synchronization server, wherein the optical fiber is used for transmitting information between the main unit and the at least one remote radio unit; the clock synchronization server is allocated at a position close to one end of the at least one remote radio unit or is integrated with the at least one remote radio unit together; the clock synchronization server is used for transmitting synchronous data between the clock synchronization server and the main unit through the optical fiber so as to enable the main unit to carry out configuration processing according to the synchronous data and realize the time synchronization between the main unit and the clock synchronization server. Through the scheme provided by the invention, the time synchronization between the main unit and the clock synchronization server is realized, so that the selection of a station point of the main unit of the system can be more flexible and convenient, equipment is simple, and the cost is low.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and device for realizing time synchronization in a communication system. Background technique [0002] In a mobile communication system, a base station is an important part of a mobile communication network, and is used to send and receive wireless signals to enable a user terminal (user equipment, UE) to access a wireless network. [0003] The base station system of the existing communication network has different networking solutions. For example, the base station can be installed in a single location, or the baseband part and the radio frequency part of the base station can be installed in different locations (distributed architecture base station). For a distributed architecture base station, that is, the baseband part of the base station is separated from the radio frequency part, the distance between the baseband circuit and the radio frequency circuit can be relatively s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04J3/06H04W56/00H04B10/25
CPCH04B10/25H04J3/0638H04J3/0667H04W56/0015
Inventor 冯烈训何勇
Owner HUAWEI TECH CO LTD
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