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Method and device for coordinating dynamic interference between neighboring cells of wireless communication system

A technology of adjacent cells and adjacent cells, applied in wireless communication, network traffic/resource management, electrical components, etc., can solve problems such as low spectrum utilization and adjustment

Inactive Publication Date: 2011-01-12
NEW POSTCOM EQUIP
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Problems solved by technology

This solution improves the throughput rate and QoS level of cell edge users, and overcomes the shortcomings of traditional interference coordination technology that the spectrum utilization rate is not high and cannot be adjusted with changes in load conditions.

Method used

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  • Method and device for coordinating dynamic interference between neighboring cells of wireless communication system
  • Method and device for coordinating dynamic interference between neighboring cells of wireless communication system
  • Method and device for coordinating dynamic interference between neighboring cells of wireless communication system

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Embodiment Construction

[0065] Combine below figure 1 The general implementation process of the present invention will be described in detail. The present invention provides a definition and calculation method of HII values ​​suitable for OFDM wireless communication systems, and a scheme for dynamic interference coordination between cells using HII, specifically comprising the following steps:

[0066] 1. Operators or equipment manufacturers deploy base stations according to factors such as network planning requirements, base station cell size, and base station transmit power, and configure predefined parameters M, T, N, H, and B values ​​(M is high interference ratio, T is high interference Threshold, N is the maximum number of neighbors considered, H is the estimated value of interference, and B is the estimated value of promotion), and choose to use the aforementioned two interference statistical schemes, that is, one of the direct statistical method and the historical linear average method.

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Abstract

The invention provides a method for defining home information infrastructure (HII) and a scheme for coordinating dynamic interference of multi-point cooperation between cells in an orthogonal frequency division multiplexing (OFDM) wireless communication system based on HII. In the scheme, co-scheduling is performed between the neighboring cells by using the HII mechanism, so that the interference between the cells is suppressed, and the throughput rate and the quality of service (QoS) level of a cell-edge user are effectively improved. Particularly, a base station generates an HII list for each main interference neighboring cell and periodically transmits the list to the base station of the interference neighboring cell. Meanwhile, when the base station is subjected to uplink scheduling, the HII list of the cell per se is updated according to the HII list transmitted by the interference neighboring cell, and the user is scheduled according to the list and the channel condition.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a method and device for dynamic interference coordination between adjacent cells in a wireless communication system. Background technique [0002] Two important performance indicators of the radio access network are spectrum utilization and service quality of service (Quality of Service, hereinafter referred to as QoS). On the one hand, in order to achieve high spectral efficiency, full frequency reuse should be used as much as possible (ie, the frequency reuse factor is 1) when deploying the network. On the other hand, in order to provide satisfactory service, it is necessary to guarantee the QoS level of users, especially cell edge users. [0003] For next-generation wireless communication systems using Orthogonal frequency-division multiplexing (OFDM) technology, such as the 3GPP Long-Term Evolution (LTE) system, users in the same cell use In the case of elimina...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/02H04W28/16H04W72/14
Inventor 纪子超温文坤江明
Owner NEW POSTCOM EQUIP
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