Method for realizing relay communication in cluster mobile communication system

Abstract

The invention relates to a method for realizing relay communication in a cluster mobile communication system, and relates to the technical field of wireless communication application. The method aims at meeting requirement of long-distance call between handheld mobile stations and a base station. The method comprises the following steps: when the handheld mobile stations are divorced from vehicle mobile stations, the vehicle mobile stations apply for a relay channel for the base station; when the base station receives application of the relay channel from the vehicle mobile stations, the base station allocates the relay channel according to use conditions of the channels, and the handheld mobile stations and the vehicle mobile stations record the relay channel; a single transmitted by the handheld mobile stations is transmitted to the vehicle mobile stations by the relay channel; the vehicle mobile stations transmit the signal transmitted by the handheld mobile stations to the base station for normal communication on an uplink signal channel or an uplink voice channel after receiving the signal; when the handheld mobile stations return to the vehicle mobile stations, the vehicle mobile stations apply for releasing the relay channel for the base station; and the base station releases the relay channel to complete relay communication of a separation work mode after receiving the application for releasing the relay channel from the vehicle mobile stations. The method is suitable for the cluster mobile communication system.

Description

technical field [0001] The invention relates to the technical field of wireless communication applications. Background technique [0002] Trunked mobile communication systems such as figure 1 As shown, it consists of a base station and several mobile stations, and the mobile stations include vehicle-mounted mobile stations and handheld mobile stations. The transmit power of the base station determines the size of the coverage area of ​​the base station. In the coverage area of ​​the base station, the communication distance between the mobile station and the base station mainly depends on the transmission power of the mobile station. For the vehicle-mounted mobile station, due to the high transmission power, the communication distance with the base station is relatively long. For the handheld mobile station, due to the limitation of the power supply battery capacity, the transmission power is small, so the communication distance with the base station is relatively short. ...

AI Technical Summary

Problems solved by technology

When the handheld mobile station is far away from the base station, even if the handheld mobile station is within the coverage area of ​​the base station, the base station cannot receive the uplink signal transmitted by the handheld mobile station, and the handheld mobile station can only receive the downlink signal transmitted by the base station, which affects the handheld mobile station. Normal communication between the mobile station and the base station

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