Staged wireless resource management method based on dynamic cell group in cellular system

A wireless resource management and wireless resource technology, applied in the field of wireless communication, can solve the problem of incomplete joint coordination of available wireless resources, etc., to achieve the best cell performance, the best overall network performance, and reduce inter-cell interference.

Inactive Publication Date: 2009-04-01
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

Moreover, although these interference coordination methods solve the problem of inter-cell interference, the cells for interference coordination are all statically configured, and there is no mechanism for interference coordination between multiple cells based on variable numbers and positions. There is no complete joint coordination of multiple available wireless resources, including the three available resources of frequency, time and space

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  • Staged wireless resource management method based on dynamic cell group in cellular system
  • Staged wireless resource management method based on dynamic cell group in cellular system
  • Staged wireless resource management method based on dynamic cell group in cellular system

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Embodiment Construction

[0029] Figure 1 shows the applicable cellular network topology of this patent. Taking the network architecture defined by 3GPP LTE as an example, each cell has a base station (eNB), and user terminals in each cell access the base station that controls the cell (eNB), the base station is connected to the access gateway (aGW), and the base station and the base station are interconnected in a mesh manner (that is, each cell has an interface to communicate with other cells). In this network architecture, if multiple cells jointly perform radio resource management, the position of the radio resource management (RRM) control node needs to be considered. In the following, only five cells in the system are taken as an example, and the number of cells in the system in an actual system will be much larger than that in the embodiment of the present invention.

[0030] Figure 2 shows a centralized radio resource management method. If the radio resources of all cells in the system are uni...

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Abstract

The invention discloses a classification wireless resource management method based on a dynamic district group, suitable for cellular communication system. Adjacent districts constitute a district group according to interference relationships between adjacent districts, a plurality of districts belonging to the same district group are joined up to perform wireless resource management, reducing interference between the districts and increasing performance of the edge users, ensuring requirement of service quality. Structure of the district group is updated periodically according to the interference change between the districts. The wireless resource management method in the invention is a classification method. The district group may unifiedly manage the resource distribution of a plurality of districts inwards, also manage the resource distribution of the edge of the district. The districts in the district group are joined up in a centralized mode, also in a distributing mode. The wireless resources distributed in the district group comprise time, frequency and space, the joining mode includes combining time domain and frequency domain, combining beam direction and power.

Description

technical field [0001] The present invention belongs to the field of wireless communication, and provides a method for joint wireless resource management of multiple cells in a cellular mobile communication system. The method is based on dynamic cell groups, belongs to hierarchical wireless resource management, and can coordinate inter-cell interference. Improve wireless resource utilization. The method is applicable to various cellular mobile communication systems with interference from neighboring cells. Background technique [0002] With the increasing demand for wireless mobile communications, people hope that wireless networks can provide higher data rates and more types of services, which puts forward higher requirements for wireless communication systems, but the spectrum resources available for wireless communication systems are limited. Therefore, it is necessary to improve the spectrum utilization rate of the wireless communication system. At the physical layer, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/08H04W72/06H04W16/10
Inventor 张天魁曾志民冯春燕王康
Owner BEIJING UNIV OF POSTS & TELECOMM
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