High-density micro-cell deployment method and system

Abstract

The invention discloses a high-density micro-cell deployment method and system and relates to the field of wireless communication. The method comprises the steps that high-density deployed micro-cells are divided into micro-cell clusters, wherein a cluster ID is configured for each cluster, and a micro-cell ID is configured for each micro-cell in each cluster; all small base stations in the same cluster send a first message on the same time-frequency resource, and scrambling is conducted with the cluster IDs, wherein the first message contains at least one of a synchronous signal, a cluster public reference signal, a broadcast message, a paging message and a random access response; each small base station in the same cluster sends a second message independently, and scrambling is conducted with the micro-cell IDs, wherein the second message contains at least one of a reference signal used for wireless resource management measurement, a demodulation reference signal, a control channel message and a data channel message. In this way, the method and system solve the problem of control signal interference between cells in the same cluster, the reliability of a control signal is improved, and a user can find micro-cells more effectively.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a high-density small cell deployment method and system. Background technique [0002] With the rapid development of smart terminals and mobile Internet, mobile data traffic is also growing rapidly. According to the report of the International Telecommunications Union, from 2010 to 2015, the global mobile data traffic volume will increase by 15 to 30 times. The surge in mobile data traffic will cause network capacity to gradually become a bottleneck and bring great challenges to operators. In order to meet the increasing demand for data traffic, hierarchical networking and deployment of micro cells are an important and effective technical means. 3GPP Rel-12 proposes that micro cell enhancement is one of the important topics. In actual network deployment, low-density micro-cell deployment and high-density micro-cell deployment need to be considered for service distr...

AI Technical Summary

Problems solved by technology

Due to the single-cell deployment, this solution loses the gain of cell splitting and cannot meet the growing demand for data traffic, and the control signaling capacity is limited, which is the bottleneck restricting the improvement of spectrum utilization.

[0008] Method 3. Each micro cell adopts a multi-cell cooperative transmission mechanism. This solution can improve the channel status of the data channel of the edge user in the connected state, thereby improving the spectrum efficiency, but it cannot solve the problem of control signaling interference and the problem of mobility management. question

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