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System level simulation method for CoMP (coordinated multi-point) technique in LTE-A (long term evolution-advanced) system

An LTE-A, system-level simulation technology, applied in the field of communication, can solve problems such as uncertain cooperative cells and difficult simulation

Inactive Publication Date: 2011-04-20
XI AN JIAOTONG UNIV
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Problems solved by technology

[0007] The purpose of the present invention is to provide a system-level simulation method for CoMP technology in an LTE-A system. By analyzing the essence of CoMP technology, the method abstracts the simulation model corresponding to CoMP technology, and can solve the problem of cooperating cells in CoMP technology. Simulation difficulties caused by uncertainties and other factors

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  • System level simulation method for CoMP (coordinated multi-point) technique in LTE-A (long term evolution-advanced) system
  • System level simulation method for CoMP (coordinated multi-point) technique in LTE-A (long term evolution-advanced) system
  • System level simulation method for CoMP (coordinated multi-point) technique in LTE-A (long term evolution-advanced) system

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[0069] The system-level simulation method for CoMP technology in the LTE-A system of the present invention specifically includes the following steps:

[0070] 1) According to the definition of four typical scenarios by the IMT-A system, select the scenario; the four typical scenarios are indoor hot spot model, urban micro cell model, urban macro cell model and rural macro model, and the urban micro cell model , the urban macro cell model and the rural macro model are collectively referred to as the outdoor model;

[0071] 2) Randomly generate user distribution and corresponding scene information;

[0072] 3) Using the generated scene information, adopt the SCME channel model proposed by the WINNER+ system to generate fast fading information, and combine the slow fading information contained in the scene information to generate channels;

[0073] 4) Set the broadband SINR threshold SINR gate , using the generated scene information and channel information to calculate the broa...

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Abstract

The invention discloses a system level simulation method for a CoMP (coordinated multi-point) technique in an LTE-A (long term evolution-advanced) system. The method comprises the following steps of: generating needed simulation scene information according to the IMT-A (international mobile telecommunication-advanced) requirement; obtaining a corresponding channel matrix according to the scene information; adding a CoMP algorithm module; carrying out coordination user division and resource block distribution; carrying out virtual resource block transmission according to the result of resourcescheduling; and finally recording the stimulation result, and carrying out performance evaluation. In the invention, the manner of threshold is adopted to distinguish cooperative users and non-cooperative users, and the proportion fair-share scheduling algorithm is adopted to schedule the resource blocks. By adopting the method provided by the invention, a CoMP system model can be simplified, so that the simulation difficulty brought by the factors, such as the uncertainty of cooperative cell and the like in the CoMP technique can be solved.

Description

technical field [0001] The invention belongs to the technical field of communications, and relates to a system-level simulation method, in particular to a system-level simulation method for CoMP technology in an LTE-A system. Background technique [0002] As we all know, in a cellular system, the signal-to-noise ratio at the cell edge is very low, which leads to problems such as low cell-edge user throughput and low cell-edge spectrum utilization. For a long time, how to improve the performance of cell edge users has been a hot spot in communication research. Coordinated Multi-Point (CoMP) technology is a third-generation partnership project (3 rd Generation Partnership Project, 3GPP) in the LTE-Advanced (abbreviated as LTE-A) system is an important technology for improving user performance at the cell edge and improving spectrum efficiency at the cell edge. It shares the channel and data information of multiple cells, and through unified coordinated scheduling and joint ...

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Application Information

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IPC IPC(8): H04W24/06H04W72/12
Inventor 邓建国唐小勇杨金龙赵丰罗新民杜威钱鹏
Owner XI AN JIAOTONG UNIV
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