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Base station cooperation method facing downlink rate of target user in cellular network

A technology of downlink rate and target user, applied in the field of base station cooperation, can solve the problem of establishing HPPP model in homogeneous cellular network, and achieve the effect of improving downlink rate and reusing spectrum resources.

Active Publication Date: 2017-08-29
NANJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0004] In the prior art, the HPPP model has not been established for the homogeneous cellular network, and the disclosure of improving the downlink rate of the target user through the base station cooperation strategy

Method used

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  • Base station cooperation method facing downlink rate of target user in cellular network
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  • Base station cooperation method facing downlink rate of target user in cellular network

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Embodiment Construction

[0020] The present invention is described in further detail now in conjunction with accompanying drawing. The present invention mainly includes three aspects: one is to establish a HPPP model for the homogeneous cellular network; the other is to propose a base station cooperation strategy and solve the downlink rate of the target user under the strategy; the third is to obtain the maximum downlink rate of the target user Under the condition of , the optimal cooperation factor α is obtained according to the search algorithm, and the optimal cooperation mode is realized.

[0021] First use the HPPP model to model the base station, then obtain the SINR of the target user according to the base station cooperation strategy, and then obtain the downlink rate of the target user according to the Shannon formula, and finally, under the condition that the downlink rate of the target user is the largest, select according to the search algorithm The optimal cooperation factor, so as to ob...

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Abstract

The invention discloses a base station cooperation method facing the downlink rate of a target user in a cellular network. An HPPP model is used to model a base station; a relational expression between the downlink rate t of the target user and a cooperation factor a is obtained according to characteristics of the HPPP model and a cooperation strategy transmitted by a neighbor base station cooperatively; and an optimal cooperation factor a is obtained via a searching algorithm, and an optimal base station cooperation manner is realized. According to the invention, the HPPP model is used to model the base station, the position of the base station is independent and random, the present situation of distribution of base stations is satisfied more, and the system model can be analyzed by utilizing random geometric methods conveniently; and the provided base station cooperation strategy can reuse spectral resources effectively, part of interference signals is changed into useful signals, the downlink rate of the target user can be improved effectively on the premise that energy consumption is not increased, and the proper cooperation factor is selected and the optimal coordination strategy is realized on the premise of maximizing the downlink rate of the user.

Description

technical field [0001] The invention belongs to the field of base station cooperation, and is oriented to the downlink rate of the target user, and optimizes the rate of the target user without increasing energy consumption through the base station cooperation strategy. Background technique [0002] With the rapid development of the Internet and the continuous increase in the number of mobile terminals, while meeting the speed requirements of users, the issue of energy consumption has also attracted everyone's attention. Base station cooperation technology is one of the ideal means to solve this problem. The idea of ​​base station cooperation technology is that multiple base stations cooperate to serve target users, which can effectively reduce the interference between base stations. Depending on the adopted backhaul architecture, the cooperation scheme is mainly divided into two kinds of solutions: Coordinated Scheduling / Beamforming (CS / CB: Coordinated Scheduling / Beamformi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/02H04W24/06
CPCH04W24/02H04W24/06Y02D30/70
Inventor 齐丽娜蒋乔朋
Owner NANJING UNIV OF POSTS & TELECOMM
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