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Method, device and equipment for realizing clock synchronization in wireless access network

A wireless access network and synchronization device technology, applied in the field of communication, can solve problems such as large gaps

Active Publication Date: 2015-07-01
ALCATEL LUCENT SHANGHAI BELL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The difference between T1 and T2 accumulates over time, resulting in a large gap between RC1 and RC2 after a while

Method used

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  • Method, device and equipment for realizing clock synchronization in wireless access network
  • Method, device and equipment for realizing clock synchronization in wireless access network
  • Method, device and equipment for realizing clock synchronization in wireless access network

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Experimental program
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Embodiment Construction

[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0020] figure 2 A flow chart of a method for realizing clock synchronization in a processing device of a radio access network according to the present invention is shown. The method according to the invention comprises steps S1 and S2.

[0021] Wherein, the processing device receives the data packets from the sending device every same time interval, and processes the data packets every same time interval.

[0022] Preferably, the processing device and / or the sending device are included in a base station. More preferably, the base station includes a base station using remote radio technology. Wherein, the sending device includes a baseband processing unit (Base Band Unit, BBU), and the processing device includes a radio remote unit (Radio Remote Unit, RRU); or, the sending device includes an RRU, and the processing device includes a BBU .

[0023] Wherei...

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PUM

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Abstract

The invention discloses a method, device and equipment for realizing clock synchronization in wireless access network processing equipment. The method includes that confirming the processing speed of one or more monitoring windows in the current monitoring time according to the prior received quantity of received data packets and the prior processed quality of processed data packets in the previous monitoring time period, wherein the monitoring time comprises at least one monitoring window, and the monitoring window comprises one or more time intervals; counting the received quantity of received data packets and the processed quantity of processed data packets in the current monitoring time so as to confirm the processing speed of some or all of the monitoring windows in the next monitoring time period based on the current received quantity and current processed quantity.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method, device and equipment for realizing clock synchronization in a wireless access network. Background technique [0002] In the prior art, the baseband processing unit (Base Band Unit, BBU) pooling (BBU pooling) product will be applied in the new radio access network (Radio Access Network, RAN) architecture, in this kind of product, the baseband processing The flexibility of Ir interface selection between the unit and a Radio Remote Unit (RRU) can be extended. It has also become a trend to use a public network, such as a Packet Transport Network (PTN), to carry Ir services. However, in this architecture of replacing the Common Public Radio Interface (CPRI) with PTN, the respective reference clocks for the BBU and RRU are distributed, and the BBU and RRU do not have a unified clock source. Therefore, in the BBU There must be clock drift (clock drift) between...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W56/00
CPCH04W56/002H04W56/003
Inventor 张旭李明颜锋华徐徽
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD