Method and device for communication in heterogeneous mobile communication network

A mobile communication network and communication method technology, applied in wireless communication, electrical components, etc., can solve the problems of lack of effective use of spectrum resources, no consideration, system performance needs to be further improved, etc., and achieve the effect of flexible and effective configuration

Active Publication Date: 2013-01-09
ALCATEL LUCENT SHANGHAI BELL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Interference risk User equipment can avoid strong interference from macro cells in empty subframes, but in the prior art there are only fixed empty subframe density and pattern configuratio

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  • Method and device for communication in heterogeneous mobile communication network
  • Method and device for communication in heterogeneous mobile communication network
  • Method and device for communication in heterogeneous mobile communication network

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Embodiment Construction

[0039] Without loss of generality, the following embodiments of the present invention are all applied to an LTE network or an LTE-A network. The macro base station is such as but not limited to a Node B (Node B) or an evolved Node B (eNB). The macro base station The affiliated access point under management is, for example but not limited to, a pico base station (pico BS), a femto base station (femto BS) or a relay station (relay station). Those skilled in the art should understand that the core and essence of the present invention can also be applied to other mobile communication networks.

[0040] figure 1 A schematic diagram showing a cell configuration of a mobile communication network according to an embodiment of the present invention. The circular marks in the figure represent macro base stations, and the triangular marks represent lower power access points. The figure shows seven adjacent macro base stations and their cell configurations, especially the macro base sta...

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Abstract

The invention relates to a method and a device for communication in a heterogeneous mobile communication network. By the aid of the method and the device, the density of an optimized empty sub-frame can be adaptively calculated for a macro base station based on the load balance between the macro base station and a user device served by an accessory access point of the macro base station, and the pattern of the empty sub-frame is correspondingly adjusted, so that pattern configuration of the empty sub-frame of each macro base station can be independently updated. Therefore, system resources are more flexibly and effectively configured. Moreover, only an X2 interface is needed between the macro base station and the accessory access point thereof, so that a small quantity of signaling expenses is consumed.

Description

technical field [0001] The present invention relates to mobile communication technology, and more specifically, to a communication method and device in a heterogeneous mobile communication network. Background technique [0002] Currently, a heterogeneous network (heterogeneous network, HTN) has been accepted by the LTE-A research project. A heterogeneous network is defined as a hybrid network deployment in which cells of lower power base stations, such as pico base stations, femto base stations, and or relay stations, are included in addition to cells of traditional macro base stations. These smaller cells are usually used to extend signal coverage in areas with poor macro base station signals (such as indoors), or to increase network capacity in dense user areas (such as stations, airports or shopping malls). However, the introduction of smaller cells operating in the same frequency band as the macro cell in order to obtain the cell splitting gain will cause new interferen...

Claims

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Application Information

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IPC IPC(8): H04W36/00H04W36/06H04W36/30
Inventor 王钧王栋耀庞继勇沈钢蒋琦刘建国
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD
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