Interference management-based combined resource allocation for macro base station and family base station

A technology of home base station and resource allocation, applied in the field of communication, which can solve problems such as cross-layer interference

Active Publication Date: 2014-11-26
CERTUS NETWORK TECHNANJING
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Problems solved by technology

[0005] Technical problem: The purpose of the present invention is to provide a joint resource allocation method between a macro base station and a home base station based on interference management, which can solve the cross-layer interference existing between the macr

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  • Interference management-based combined resource allocation for macro base station and family base station
  • Interference management-based combined resource allocation for macro base station and family base station
  • Interference management-based combined resource allocation for macro base station and family base station

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Embodiment Construction

[0033] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0034] figure 1 It is a system scene diagram of the present invention. A macro base station and Nf home base stations form a two-layer network. There are M macro users in the macro cell, each macro user occupies a channel, and there are M channels in total. The distribution of home base stations is as follows: figure 1 In the corridor model shown, each room is a square of 10m×10m, and femtocells and home users are randomly distributed in the room.

[0035] The basic idea of ​​the present invention is to combine the macro base station and the home base station system for channel allocation, apply the optimization theory to solve the power control in the double-layer network of the home base station, reduce cross-layer interference and co-layer interference as much as possible, and optimize system resource allocation. Improve system energy efficiency. First...

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Abstract

The invention aims to provide an interference-based combined resource allocation method for a macro base station and a family base station. Combined channel allocation is performed for a macro user and a family base station based on a heuristic type dynamic clustering method, and cross-layer interference between a family base station system and a macro cellular system is effectively reduced while clustering is performed on the family base station. While ensuring constraint conditions of macro user and family user QoS, an optimization problem with minimization of family base station transmitting power being a target function is constructed, and a subgradient method is utilized to solve the optimization problem. The method reduces interference of the family base station system, decreases interruption probability of the family user, and improves energy efficiency of the family base station.

Description

technical field [0001] The invention relates to a joint resource allocation method of a macro base station and a home base station based on interference management, and belongs to the technical field of communication. Background technique [0002] In the cellular network, almost 2 / 3 of the phone calls and more than 90% of the data services are generated indoors. The home base station is a small-scale, low-power, and low-cost wireless AP arranged in homes or commercial areas. , providing an opportunity to solve the indoor coverage problem. By arranging home base stations on a user-organized basis, the load on macro base stations can be reduced, while the communication quality of home users can be improved, and the transmission power of indoor users can be reduced to achieve green communication. [0003] Nevertheless, the introduction of Femtocell has transformed the traditional macrocellular network into a two-layer network structure—the macrocellular layer and the femtocell...

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Application Information

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IPC IPC(8): H04W72/04
CPCY02D30/70
Inventor 朱琦许悦
Owner CERTUS NETWORK TECHNANJING
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