Load balance equipment, distributed base station system and communication method thereof

Abstract

The invention relates to the field of mobile communication, in particular to a distributed type base station technology for realizing load balancing. The invention provides load balancing equipment, a distributed type base station system and a communication method thereof. The method comprises the following steps: when the load balancing equipment receives data sent by a RRU, determining whether a BBU corresponding to the RRU exists according to the relation between the RRU and the BBU; if yes, forwarding the data to the BBU corresponding to the RRU; and if not, according to the currently available resources of all BBUs, choosing one of BBUs to which data is forwarded to. Because of the load balancing equipment arranged between the BBUs and the RRU, the load distribution can be determined according to the currently available resources of the BBUs, namely one of BBUs is chosen to establish a data link with the newly accessed RRU according to the currently available resources of the BBUs, so that the aims of balancing the load of the BBUs and fully utilizing the BBUs to process resources are realized.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to the technology of distributed base stations for realizing balanced load. Background technique [0002] Traditional wireless cellular networks usually adopt the macro base station network construction method, which usually has the following problems: difficulty in site acquisition, complex engineering construction, insufficient equipment utilization, and difficulty in network optimization, etc. In order to solve the problems existing in traditional network deployment and further reduce the cost of network construction, the industry has proposed a distributed base station solution based on BBU (Base band Unit, base band unit) and RRU (Remote Radio Unit, remote radio frequency unit). It greatly facilitates the operator to complete the network construction. [0003] Such as figure 1 As shown, the distributed base station solution divides the traditional base station into two rel...

AI Technical Summary

Problems solved by technology

[0002] Traditional wireless cellular networks usually adopt the macro base station network construction method, which usually has the following problems: difficulty in site acquisition, complex engineering construction, insufficient equipment utilization, and difficulty in network optimization, etc.

[0004] Compared with the network construction method of the macro base station, the distributed base station of RRU and BBU in the prior art provides a flexible and simple installation method and more effective network coverage; however, there are still problems of unbalanced base station load and insufficient utilization of base station equipment resources. Question: For example, if figure 2 As shown, the RRUs connected to BBU-A are mainly distributed in residential areas, and the RRUs connected to BBU-B are mainly distributed in commercial areas

In this way, BBU-B may be overloaded during the day, but the baseband processing resources cannot be supplemented at night; similarly, BBU-A may be overloaded at night, but the baseband processing resources during the day no supplementary use

[0005] Therefore, the load of the baseband units in the distributed base station of the prior art is unbalanced, and the baseband processing resources of the baseband units cannot be fully utilized.

Images