An energy-saving strip coverage relay station deployment method

A relay station and strip technology, which is applied in the field of energy-saving strip coverage relay station deployment, can solve the problems of long-band area coverage and few people have studied it, achieve the dynamic balance of spectrum efficiency and energy efficiency, and ensure the effect of spectrum efficiency

CN105722101BActive Publication Date: 2019-08-09GUILIN UNIV OF ELECTRONIC TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2019-08-09

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Abstract

The invention discloses an energy-saving band-shaped coverage relay station deployment method. The method comprises following steps of firstly, analyzing the length and width of a band-shaped closed region; considering to use a divide cover deployment method to cover the band-shaped region completely; further building an interference weight value matrix among relay stations; constructing a basic model which ensures that the interference weight value matrix among the relay stations is a zero matrix, ensures the spectral efficiency and synchronously maximizes the energy efficiency; using an exhaustive search method to search optimum distances among the relay stations; and finally determining the positions and the quantity of the relay stations. The method can be applied in a cellular relay network. According to the method, the relay stations can be directly deployed in the weak band-shaped region; the total energy consumption of the communication system is reduced; moreover, the system spectral efficiency and the user quality of service are ensured; and the method can be extended to deploy other weak regions, such as airport runway and high-speed rail, of the cellular network.
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Description

technical field

[0001] The invention relates to the technical field of wireless communication, in particular to an energy-saving band-coverage relay station deployment method. Background technique

[0002] With the development of wireless communication technology and the rapid growth of the number of mobile users, people's requirements for wireless network signal coverage are also increasing, and people expect to be able to exchange information with anyone in a timely manner anytime, anywhere. In the LTE-A system, relay technology is considered to be a key technology, which can improve group mobility, improve cell edge throughput, expand cell coverage area, and be applied to temporary network deployment, etc. At present, the 3GPP has completed the pre-standardization work on the wireless relay, and the Type I relay will be deployed in the LTE-A system as a basic relay type.

[0003] The signal attenuates as the distance increases, and the coverage of the base station is als...

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Embodiment Construction

[0043] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0044] Assuming that there are multiple cells in the cellular network, adjacent cells use different frequency bands, and non-adjacent cells may consider frequency reuse, so that the relay station deployment method described above can be extended to multi-cell relay station deployment. In each cell, the base station BS is configured with multiple antennas, and multiple relay stations RS configured with multiple antennas are deployed in a strip-shaped area. The coverage of the relay stations is a circle with a radius of r. A large number of user MUs are randomly distributed in the cell, and users can access base stations or relay stations as required. In addition, we only discuss the case of tw...