Small-cell network interference coordination method, macro base station and small-cell base station
A technology of a small cell base station and a coordination method, which is applied in the field of macro base station and small cell base station, and the coordination field of small cell network interference, can solve the problems of not fully improving system throughput, wasting energy, increasing network interference, etc.
Active Publication Date: 2015-04-22
BEIJING UNIV OF POSTS & TELECOMM
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[0004] The current small cell base station network power control interference coordination scheme, in order to improve the throughput of the network, the small cell base stations greedily use the maximum transmission power, which increases the interference of the network, not only wastes energy, but also cannot fully improve the system throughput
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[0060] The specific embodiments of the invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.
[0061] The method of the embodiment of the present invention is based on the idea of alliance game. Alliance game is an effective method for studying cooperation among participants. Each participant strengthens its position in the system by forming an alliance. It is a reasonable choice to use the coalition game to model the cooperation problem in the wireless communication network because it can obtain greater benefits than when each user acts alone.
[0062] Based on the above idea, the present invention provides an OFDMA small cell network interference coordination scheme based on alliance game. The network central node (macro base station) uses alliance game mode to all...
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The invention discloses a small-cell network interference coordination method, a macro base station and a small-cell base station. The small-cell network interference coordination method comprises the steps that S1, the macro base station collects interference information of the small-cell base station from the small-cell base station and calculates interference tolerance of the small-cell base station according to the interference information sent by the small-cell base station; S2, the small-cell base station receives the interference tolerance sent by the macro base station and the interference information to other small-cell base stations, adjusts the interference information itself and sends the adjusted interference information to the macro base station; S3, the macro base station receives the adjusted interference information sent by the small-cell base station and calculates a total interference value of all small-cell base stations according to the adjusted interference information, and the steps S1 and S2 are repeatedly executed when the interference value is not within a preset interference value range. By means of the small-cell network interference coordination method, interference in a network is limited, the transmitting power of the small-cell base station is also reduced while the system throughout is effectively improved, the energy saving purpose is achieved, and network performance is improved.
Description
technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a small cell network interference coordination method, a macro base station and a small cell base station. Background technique [0002] Currently, wireless data services are experiencing explosive growth, and cellular communication systems are facing huge challenges in terms of data requirements. In order to improve the performance of the cellular network, deploying small cell base stations within the coverage of the macro cell of the existing cellular system can effectively improve the spectral efficiency of the system and improve the coverage of hotspots, and become an effective means to meet the wireless data rate requirements. At the same time, the distance between the small cell base station and the user is closer, and better channel conditions are also conducive to improving the energy efficiency of the network. [0003] The deployment of small cell...
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IPC IPC(8): H04W24/02H04W52/02
CPCH04W24/02H04W52/243Y02D30/70
Inventor 田辉张平聂高峰吕昕晨
Owner BEIJING UNIV OF POSTS & TELECOMM