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Data synchronization method, system and device

A data synchronization and data technology, applied in the field of communication, can solve problems such as the increase of BBU processing complexity

Active Publication Date: 2012-01-18
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This solution can reduce the hardware cost of the RRU, but the processing complexity of the BBU increases with the number of RRUs connected to the BBU.

Method used

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  • Data synchronization method, system and device
  • Data synchronization method, system and device

Examples

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Embodiment Construction

[0049] Embodiments of the present invention provide a data synchronization method, system, and device. In the uplink, after the RRU receives data from the antenna, it buffers the data until the sum of the distance delay of the RRU and the buffer time reaches After setting the delay value of the group, the data is sent to the BBU, and the BBU receives the data of the RRU in each group at the time point corresponding to the set delay value of each group, and processes the received data. In the downlink, after the BBU determines the antenna transmission time, the data is sent to the RRU in the corresponding group in advance of the set delay value of each group relative to the antenna transmission time; after the RRU receives the data sent by the BBU , buffering the data until the sum of the extended distance delay of the RRU and the buffering time reaches the set delay value of the group, and then sending the data to the antenna. Since the RRUs are grouped, the time required for ...

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Abstract

The invention discloses a data synchronization method, a system and a device, relating to a communication technology. RRUs (Radio Remote Units) are grouped, and data can be stored in each RRU only within the time when the sum of the remote time delay of the RRU and the buffering time reaches the set time delay of the corresponding group. The quantity of data to be buffered by the RRU is reduced greatly, and difficulties in realization of the RRU are reduced. Meanwhile, the BBU (Base Band Unit) only needs to respectively process each group, data reception and processing based on the remote time delay of each RRU are not needed, and difficulties in BBU processing are also reduced.

Description

technical field [0001] The present invention relates to communication technology, in particular to a data synchronization method, system and device. Background technique [0002] The BBU (Base-Band Unit, baseband signal processing unit) in the remote base station is generally connected to each RRU (RRU Remote Radio Unit, remote radio unit) equipment in a star and cascade manner, and each RRU antenna in the system receives and Transmitted data requires synchronization. Since the lengths of the remote fibers of each RRU and BBU in the system are not exactly the same, in order to complete the synchronization of sending and receiving data at the antenna port of the RRU, in the downlink, the RRU or BBU needs to align the data cache and send it to the antenna, while in the uplink, each After the RRU antennas receive data at the same time, they need to be aligned and sent to the BBU, or the BBU receives and calculates the data of each RRU separately. [0003] There are currently ...

Claims

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Application Information

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IPC IPC(8): H04W56/00H04W88/08
Inventor 朱莉森吴永海
Owner DATANG MOBILE COMM EQUIP CO LTD
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