Method and system for coordinating interference between districts

A technology of inter-cell interference and strong interference, applied in wireless communication, power management, electrical components, etc., can solve the problem of decreased user terminal throughput at the edge of the cell, difficult to schedule time-frequency resource orthogonality, and reduced scheduling flexibility To improve the average throughput of user terminals, refine the coverage area of ​​the cell, and improve the throughput

Inactive Publication Date: 2009-07-29
ZTE CORP
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Problems solved by technology

However, when the wireless communication network is heavily loaded, it is difficult to ensure that the time-frequency resources used by all adjacent cells are orthogonal through scheduling, resulting in inter-cell interference
Although setting the sensitive area can make the part of the time-frequency resources used in adjacent cells with the highest collision probability completely orthogonal, but it reduces the flexibility of scheduling and reduces the spectrum utilization during partial power control and path loss compensation. The throughput of the user terminal at the edge of the cell and the average throughput of the user terminal decrease

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  • Method and system for coordinating interference between districts
  • Method and system for coordinating interference between districts
  • Method and system for coordinating interference between districts

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Embodiment Construction

[0044] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0045] An embodiment of the present invention includes a base station 101 and a user terminal 102, such as figure 1 shown.

[0046]The base station 101 is used to set the threshold for area division, the threshold includes the first threshold for dividing the inner area 1 and the transition area 2 and the second threshold for dividing the transition area 2 and the outer area 3, and setting path loss compensation factors for different areas and time-frequency resources, the first threshold is less than the second threshold; receive the strongest interference signal strength measurement result repor...

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Abstract

The invention discloses an inter-cell interference coordination method, which comprises the following steps: step 1, the base station sets a first threshold for dividing the internal layer area and the transition area, and a second threshold for dividing the transition area and the external layer area, and sets the link loss compensation factor and time frequency resource of every divided area; step 2, the user terminal of the cell measures the intensity of the most intensive interference signal, and reports the measuring result to the base station; step 3, the base station determines the area including the user terminal according to the measuring result, determining the link loss compensation factor of the user terminal according to the area including the user terminal, calculating the user terminal emission power, and sending the calculating result to the user terminal; step 4, the user terminal receives the calculating result, and emits according to the calculating result. The method in the invention can coordinate inter-cell interference, and increase cell edge user terminal throughput and user terminal average throughput.

Description

technical field [0001] The present invention relates to the field of wireless communication networks, in particular to a method and system for inter-cell interference coordination. 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 inter-cell user terminal throughput and average user terminal throughput, and faces severe challenges. [0003] At present, IEEE 802.16j, IMT-Advanced (advanced international mobile communication) and WINNER (Wireless World Initiative New Radio, Wireless World Initiative New Radio) propose to use interference randomization, interference coordination, and interference elimination methods to solve inter-cell interference question. In LTE (Long Term Evolution, Long Term Evolution), it is proposed that according to the strongest interference level of all adjacent cells received by the user terminal, the ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/14
Inventor 魏巍
Owner ZTE CORP
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