Cooperative node unit selection method and device

A cooperative node and unit selection technology, which is applied in electrical components, network traffic/resource management, diversity/multi-antenna systems, etc., can solve problems such as increased system overhead, improper node selection, and restrictions on the advantages of cooperative multi-point transmission technology. Optimize the selection method, improve the service quality, and improve the effect of system performance

Inactive Publication Date: 2009-11-18
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0003] However, the existing node selection schemes are either based on geographic location or pilot strength. The selection of these single parameters makes it difficult for the selected node unit to meet the user's business needs
In addition, the existing node unit selection scheme either increases the system overhead due to its complexity, or restricts the advantages of coordinated multi-point transmission technology due to improper node selection

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  • Cooperative node unit selection method and device
  • Cooperative node unit selection method and device
  • Cooperative node unit selection method and device

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Embodiment Construction

[0023] The invention will be described in more detail hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are illustrated.

[0024] In order to meet the requirements of the LTE-Advanced (Long Term Evolution, Long Term Evolution) system on cell edge performance, the 3GPP organization proposed a coordinated multipoint transmission technology. Coordinated multipoint transmission technology can be divided into two categories: one is cooperative scheduling and beamforming, and the other is joint processing. Among them, cooperative scheduling refers to cooperative scheduling of users, wireless resources, beams, etc. based on shared channel information in coordinated cells, thereby suppressing inter-cell interference; joint processing refers to multiple coordinated cells sharing user data information and using the same resources to jointly serve Provide services that improve performance for cell-edge users. In a specific scenario,...

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Abstract

The invention provides a cooperative node unit selection method and a device, relating to the wireless communication field which adopts multi-node unit joint transmission, wherein, the cooperative node unit selection method comprises the following steps: acquiring signal status information of the candidate node unit; selecting a single or a plurality of performance parameters to serve as performance indexes from the signal status information; sorting the candidate nodes directly according to the single performance parameter if the single performance parameter is selected as the performance index; calculating the comprehensive performance index of the candidate node unit according to a plurality of performance parameters and sorting the candidate nodes according to the comprehensive performance index of the candidate node unit if a plurality of performance parameters are selected as performance indexes; selecting the cooperative node unit from the candidate node units according to the sorting results. The invention not only optimizes the selection mode of the cooperative transmission node unit and improves the quality of services provided to users, but also improves system performance.

Description

technical field [0001] The invention relates to the field of wireless communication using joint transmission of multi-node units, in particular to a method and device for selecting cooperative node units. Background technique [0002] In order to meet the urgent requirements of future communication systems for improving cell edge performance, CoMP technology and the selection of node units for Cooperative transmission under the CoMP architecture have attracted extensive attention. In the engineering practice of CoMP transmission technology, there are various evaluation indicators that affect the selection of fast node units, the most critical of which are technical parameters related to user and cell performance. The user's application scenario represents the user's current business needs, including conversational services, streaming media services, interactive services, background services and other business methods. The actual demand of the user is reflected in the range ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/16H04B7/02H04W88/08
Inventor 许晓东章辉陶小峰李静雅陈鑫张忠起郝志洁赵英宏刘婧雯张平
Owner BEIJING UNIV OF POSTS & TELECOMM
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