Cooperative transmission method and device in heterogeneous network

Abstract

The embodiment of the invention relates to the technical field of communication, and discloses a cooperative transmission method and device in a heterogeneous network. According to the method, a CoMP-JP transmission mode and a CoMP-CB transmission mode are utilized for joint cooperative transmission so as to serve macro base station users and micro base station users. Due to the fact that the CoMP-JP transmission mode has higher spectral efficiency and the CoMP-CB transmission mode has the advantage of a larger power utilization space, the cooperative transmission method and device can improve the system energy efficiency of the heterogeneous network.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for cooperative transmission in a heterogeneous network. Background technique [0002] In recent years, wireless communication services have gradually shown a trend of large traffic volume and unbalanced distribution time and distribution areas. For example, stadiums, museums and other areas usually have short-term business peaks during certain periods of time, and the traditional macro-cellular homogeneous network can no longer meet the needs of such services, so various small and low-power base stations (also called micro base stations) ) are placed in these areas to share the network load of the macro base station. Such a network composed of macro base stations and micro base stations is called a heterogeneous network (Heterogeneous Network). [0003] In a heterogeneous network, macro base stations generally provide large-scale coverage and...

AI Technical Summary

Problems solved by technology

In practice, because the inter-cell interference in heterogeneous networks is very complex, and the interference-limited areas are relatively dense, the system energy efficiency of heterogeneous networks is severely restricted.

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