Centralized bandwidth distribution method for relay network

Abstract

A centralized bandwidth allocation method in a relay network is characterized in comprising: each relay station in the relay network computes bandwidth allocation quantity required by each service priority to obtain the bandwidth allocation statistic of each service priority; the relay stations report bandwidth request messages to a base station with the same reporting period at the same time; the message comprises one or more bandwidth allocation requests, each of which comprises service priority information and bandwidth allocation statistic corresponding to the service priority; and at the end of each reporting period, the base station allocates bandwidth resources to the bandwidth allocation requests according to the service priority sequence or bandwidth allocation statistic sequence. In the inventive method, each relay station computes and reports bandwidth quantity, and the base station sequentially allocates bandwidth resources according to the size of the priority or bandwidth quantity, so that the base station can allocate bandwidth resources by using corresponding strategies after comprehensive consideration of bandwidth request distribution in each relay station in the relay network.

Description

technical field [0001] The invention relates to a bandwidth allocation method in a relay network, in particular to a centralized bandwidth allocation method in the relay network. Background technique [0002] In the next-generation wireless communication network, it is necessary to solve the problem of defective areas within the coverage of the base station (Base Station, referred to as BS), so that the area not covered by the base station can be covered; and the capacity problem within the coverage of the base station, including the cell Capacity allocation between different areas in the same area and capacity allocation in adjacent cells. The above problems cannot be effectively solved, making indoor coverage models in buildings such as subway stations, tunnels or other underground buildings, as well as some temporary application models and mobile vehicles and other application models or the coverage and throughput of users at the edge of the cell, etc. The problem faces ...

AI Technical Summary

Problems solved by technology

[0009] 1. The base station usually allocates bandwidth resources to the relay stations according to the order in which the bandwidth requests are received, and cannot effectively consider the distribution of bandwidth requests of each relay station in the relay network. Therefore, the relay station that makes the bandwidth request first can get more bandwidth resources. Bandwidth resources, and the bandwidth resources available to relay stations that subsequently request bandwidth are getting less and less, and the distribution of bandwidth resources in the entire relay network is unbalanced;

[0010] 2. When the bandwidth is insufficient, the relay station sends a bandwidth request to the base station. A large number of bandwidth requests and corresponding response information increase the bandwidth and the processing resources of the relay station and the base station.

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