Cell down covering balance method and device

Abstract

The invention discloses a cell down covering balance method and a device, which are applied to a control station adopting beamforming, wherein the method comprises the following steps that: the control station carries out cyclic delay diversity (CDD) processing on the pilot frequency, the frame control head and the downlink mapping; the control station carries out CDD processing on the uplink mapping, the downlink control description and the up control description broadcasting message; and the control station carries out the CDD processing on management messages accessed into a terminal user. Through the CDD processing carried out on the pilot frequency, the covering ranges of the beamforming cell pilot frequency, the frame control head and the down MAP messages are widened, and the covering ranges of the broadcasting messages and the management messages are respectively widened through the CDD processing on the broadcasting messages and the management messages.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a cell downlink coverage balancing method and device. Background technique [0002] Excellent multi-antenna technology will greatly improve spectrum efficiency, reduce cost per bit, and effectively improve user experience. Not only that, it can also improve coverage, improve cell edge user throughput, reduce the number of base stations, and reduce network construction and maintenance costs. Therefore, for wireless communication systems such as WiMAX (World Interoperability for Microwave Access, global microwave access compatibility), the performance of multi-antenna technology is one of the important factors that determine the core competitiveness of WiMAX products. [0003] Downlink beamforming (Beamforming) is one of the multi-antenna technologies with great development prospects. It is a base station (Base Station, referred to as BS) transmitter that uses ...

AI Technical Summary

Problems solved by technology

[0004] However, from the perspective of improving the coverage of the cell, if the beamforming processing is performed on the user downlink service data, but the control channel of the cell is not processed to increase the transmission gain, it will cause poor coverage of the control channel and traffic channel of the cell. balanced

Because, compared with the data area after the downlink coverage is improved by using the shaping technology, the control channel may be limited, including the broadcast channel and management messages, especially the management messages when the terminal accesses, so that users at the edge of the cell cannot receive In this way, the advantages of data shaping cannot be obtained, which will cause the unbalanced coverage of the control channel and service channel of the cell, and in essence, the effect of improving the coverage of the cell cannot be achieved.

[0005] At present, after the base station adopts the downlink beamforming technology, there is little research on the coverage balance of the control channel and the traffic channel of the cell

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