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Method for coordinating interference between districts of relay wireless communication network

A technology of inter-cell interference and relay stations, which is applied in wireless communication, connection management, sustainable buildings, etc., can solve problems such as decreased spectrum utilization and reduced scheduling flexibility, and achieves refined cell coverage areas, effective interference coordination, and improved Effect of UT throughput

Inactive Publication Date: 2010-12-08
ZTE CORP
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  • Description
  • Claims
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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide an inter-cell interference coordination method of a relay wireless communication network, which can effectively solve the problems of the spectrum utilization rate decrease during partial power control and path loss compensation and the scheduling flexibility decrease when the load is heavy.

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  • Method for coordinating interference between districts of relay wireless communication network
  • Method for coordinating interference between districts of relay wireless communication network
  • Method for coordinating interference between districts of relay wireless communication network

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Embodiment Construction

[0043]Below in conjunction with accompanying drawing and embodiment the present invention will be described in further detail:

[0044] The present invention provides a new layering method for a wireless communication network with RS, which effectively solves the decrease of spectrum utilization rate during partial power control and path loss compensation and the decrease of scheduling flexibility when the load is heavy by introducing a transition area. question. The method includes two aspects: the area division of the BS coverage area and the area division of the RS coverage area.

[0045] The area division steps of the BS coverage area are as follows:

[0046] In step i, the BS sets an area division threshold;

[0047] In step ii, the BS stratifies the cell according to the threshold, including: an inner layer area, a transition area, and an outer layer area;

[0048] The threshold in the step i is determined according to the strength of the strongest interference signal...

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Abstract

The invention discloses an inter-cell interference coordination method in relay radio communication network. Wherein, the interference coordination method for base station in network comprises: A, dividing the base station into three layers: internal layer, transition area and external layer; the base station setting link loss compensation factor and time frequency resource respectively to every layer; D, setting a first interference signal intensity contrast threshold; E, measuring the intensity of current most intensive interference signal, if the intensity is larger than the first interference signal intensity contrast threshold, notifying the current user terminal to break connection, and restart the random accessing process; otherwise, the base station setting a layer list used in the relay station of the current service and the link loss compensation factor list of each layer, and adjusting the emission power of the relay station and user terminal in the current service according to the layer list and the link loss compensation factor list. The invention effectively solves the problems of frequency spectrum utilization rate decreasing when partial power controlling and link loss compensating, and scheduling flexibility reducing when load is heavy.

Description

technical field [0001] The present invention relates to a wireless communication network, in particular to a method for inter-cell interference coordination of a wireless communication network with RS (Relay Station, relay station). Background technique [0002] In the next-generation broadband wireless communication network, solving inter-cell interference in the wireless communication network becomes a key factor for improving UT (User Terminal) throughput and average UT throughput in the cell. In a relay network with RS, it will also face severe challenges to effectively solve the inter-cell interference between BS (base station), RS and its attached UT, and BS, RS and its UT in neighboring cells. [0003] In the relay network, since the RS can be used as a special UT of the subordinate BS, and at the same time, the RS itself can be the same as the RS. After the subordinate BS obtains time-frequency resources, the UT is allowed to access, forming an RS-centered RS coverag...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/14H04W72/04H04W76/00
CPCY02B60/50
Inventor 魏巍
Owner ZTE CORP
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