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User collaboration method in 5G ultra dense heterogeneous network

A heterogeneous network, ultra-dense technology, applied in the research of user collaboration relationship of ultra-dense heterogeneous networks in fifth-generation mobile communication systems

Inactive Publication Date: 2018-01-16
BEIJING UNIV OF CHEM TECH
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This brings new challenges to 5G networks

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  • User collaboration method in 5G ultra dense heterogeneous network
  • User collaboration method in 5G ultra dense heterogeneous network
  • User collaboration method in 5G ultra dense heterogeneous network

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Embodiment Construction

[0043] The main idea of ​​the present invention is to simulate the communication environment, establish a model, initialize the macro base station, micro base station, home base station and the distribution of each base station in the cell, and set the channel transmission conditions. The related setting parameters include SINR, transmit power, status etc. Calculate the path loss gain between each user and each base station according to the transmission conditions between each base station, and update the step size Update the Lagrangian operator, so that λ can be obtained by the analogy of the Lagrangian operator j The update formula of (t+1), from which p can be obtained j The correlation update formula of p after each update j both iterate back to In order to achieve the best network optimization.

[0044] figure 1 Shown is a system architecture block diagram including a macro base station, a micro base station, and a home base station at the same time, which includes...

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Abstract

The invention aims at solving the user collaboration problem in 5G heterogeneous network communication. A macro base stations and micro base stations are deployed densely, home base stations and the base stations are distributed in a sprinkled mode in a certain area, a gradient algorithm is used to research the collaboration relationship between a user and a base station in the heterogeneous network, a variable mu is updated through synchronous updating of the base stations, and a dual optimization solution method is provided. In order to solve the network utility optimization problem and morereasonably update the price, a positioning strategy function for Lagrange dual analysis is proposed, the function can well solve the dual problem and the dual gap problem during the user collaboration and load balancing process, a power control method is introduced directly on the basis of the dual optimization method finally, the initial problem is thus simplified, the result is closer to an ideal value, and corresponding exploration is made for solving the user-base station collaboration and load balancing problems.

Description

technical field [0001] This article relates to the field of mobile communication, and the present invention is a method for studying the user collaboration relationship of an ultra-dense heterogeneous network (Ultra Dense Network, UDN) in a fifth-generation (5th-generation) mobile communication system. Background technique [0002] The explosive growth of mobile smart terminals and the rapid integration with the Internet have brought about a rapid increase in wireless data traffic. All countries in the world are actively researching 5G technology, and 5G standards are beginning to emerge. Therefore, improving the communication rate and service quality of indoor / hot spots has become a requirement for the development of communication technology. Heterogeneous network (HetNet) technology provides indoor / hotspot coverage and high service rate by deploying a large number of low-power nodes in the macro-cellular network layer, and alleviates the contradiction between the explosive...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/02H04W72/12
Inventor 张海君黄思特王磊郜应佳肖九胜
Owner BEIJING UNIV OF CHEM TECH
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