Load balance control method and apparatus

Abstract

The invention relates to the field of time division duplex communication networks, in particular to technique for balancing uplink and downlink load in a time division duplex communication network. A load balance control method comprises the following steps: monitoring an uplink wireless channel resource occupation rate and a downlink wireless channel resource occupation rate in an uplink and downlink asymmetric network; and re-orientating uplink and downlink symmetric services in the uplink and downlink asymmetric network or switching to a uplink and downlink symmetric network when determining the resources of the uplink and downlink asymmetric network are limited according to the uplink wireless channel resource occupation rate and the downlink wireless channel resource occupation rate.The invention also provides a load balance control device. Due to the switching of the uplink and downlink symmetric services from the uplink and downlink asymmetric network to the uplink and downlink symmetric network when determining the resources are limited, the method and the device flexibly adapt to the service change of a current system and achieve reasonable load balancing.

Description

A load balancing control method and device technical field The invention relates to the field of time-division duplex communication networks, in particular to a technology for balancing uplink and downlink loads in a time-division duplex communication network. Background technique In a wireless communication system, communication methods can be divided into frequency division duplex and time division duplex. In TDD technology, the channel through which users send data is called an uplink wireless channel, and the channel through which users receive data is called a downlink wireless channel. The time division duplex technology uses different service time slots for the uplink wireless channel and downlink wireless channel occupying the same frequency, and the allocation ratio of the two service time slots is called the uplink and downlink time slot ratio. When a large number of services in the system are asymmetrical services (such as downloading, video-on-demand, etc.) th...

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Problems solved by technology

However, when a large number of asymmetric services (such as downloading, video-on-demand, etc.) appear in the TD-SCDMA system, the downlink wireless channel resources are very tight, while the uplink wireless channel resources are relatively idle, and there is no Give full play to the characteristics that the TD-SCDMA system is suitable for bearing uplink and downlink asymmetric services; if a 2:4 uplink and downlink time slot ratio is used, when a large number of symmetric services (such as voice calls) appear in the system, the uplink channel resources will be exhausted. nervous

Since the ratio of uplink and downlink time slots in the TD-SCDMA system is a fixed value, the allocated uplink and downlink time resources are fixed, which is difficult to adapt to changes in system services and lacks flexibility. When the fixed uplink and downlink time slot ratio is not suitable Due to the current business characteristics, resources in the uplink or downlink channels are wasted when the uplink or downlink channel resources are in short supply.

Unable to flexibly adapt to changes in current system services, reasonably balance uplink and downlink loads, and make full use of network resources

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