Heterogeneous mobile communication network power control method

A mobile communication network, heterogeneous technology, applied in power management, wireless communication, electrical components, etc., can solve problems that are not suitable for heterogeneous network environments, achieve reasonable power control or resource scheduling, reduce mutual interference, and improve overall performance Effect

Active Publication Date: 2015-06-24
ALCATEL LUCENT SHANGHAI BELL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the above method is not suitable for heterogeneous network environment

Method used

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  • Heterogeneous mobile communication network power control method
  • Heterogeneous mobile communication network power control method
  • Heterogeneous mobile communication network power control method

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Embodiment Construction

[0044] Without loss of generality, the following embodiments of the present invention are all applied to LTE networks or LTE-A networks, and some terms used in the present invention are explained as follows: macro base stations are for example but not limited to Node B (Node B) or Evolved Node B (eNB); low-power nodes refer to access nodes with lower transmission power, signal coverage, and throughput than macro base stations, such as but not limited to pico base stations (pico BS), femto BSs, or relay stations (relay station); a base station is a general term for a macro base station and a low-power node; a heterogeneous base station refers to a known base station, for example, a macro base station and a low-power node are mutually heterogeneous base stations. 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.

[0045] figure 1 A schematic diagram showing the configuration ...

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Abstract

The invention relates to a heterogeneous mobile communication network power control method. In one embodiment, a method used in a heterogeneous mobile communication network comprising neighboring macro base stations and low-power nodes is provided and include steps of I, determining an acceptable interference value by the macro base station according to average interference noise level of a physical uplink shared channel; II, sending the acceptable interference value to a low-power node from the macro base station via an X2 interface or an air interference; III, determining uplink transmission power compensation factor by the low-power node; and IV, determining uplink transmission reference power by the low-power node according to the acceptable interference value of the neighboring macro base stations. By the methods in different technical schemes, flexible and reasonable power control or resource scheduling of the heterogeneous mobile communication network can be realized, inter-cell interference especially inter-cell interference of heterogeneous base stations is lowered, and integral performance of the heterogeneous mobile communication network is improved.

Description

technical field [0001] The present invention relates to mobile communication technology, more specifically, to a power control method 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, in addition to traditional macro base station cells, smaller cells including macro base stations, cells such as pico base stations, femto base stations, and or relay stations are also included. 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 user hotspot coverage 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 n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/14H04W52/24H04W72/12
Inventor 刘建国王栋耀李静沈钢
Owner ALCATEL LUCENT SHANGHAI BELL CO LTD
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