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Method for grouping and device

A group leader and node technology, applied in the field of a method and device for grouping, can solve the problems of high complexity, heavy system workload, and small calculation amount, and achieve the effect of reducing complexity and cost, and improving throughput

Inactive Publication Date: 2011-05-04
BEIJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The former has less interference, but due to the large amount of calculation for searching for orthogonal users, the complexity of implementation is high, and the work burden on the system is heavy
The latter is simple to implement, low in complexity, and small in calculation. The disadvantage is that for randomly paired users, it may cause relatively large interference to the other party due to the high channel correlation, and due to the large difference between the two users and the allocation of resources Related to the paired users, in order to accommodate user equipment with poor conditions, resulting in ineffective use of resources

Method used

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  • Method for grouping and device

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Embodiment Construction

[0013] The embodiment of the present invention provides a grouping method.

[0014] Such as figure 2 As shown, the grouping method mainly includes the following steps:

[0015] Step 21, the base station determines that the nodes need to be grouped.

[0016] Step 22, each node calculates its combination weight.

[0017] Step 23. Select the node with the smallest combined weight as the cluster leader.

[0018] Step 24. Select nodes as group members according to the preset transmission range and connection degree.

[0019] In the embodiment of the present invention, the users in the cell are divided into two parts, that is, common users and edge users, which are respectively located in the center and edge of the cell. Since the users located in the center of the cell are closer to the base station and have better channel conditions, they directly access the base station, while the edge users are farther away from the base station and have poorer channel conditions, so techno...

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Abstract

The invention discloses a method for grouping, comprising the following steps: a base station judges that nodes need to be decomposed; each node calculates combinational weight thereof; the node with the least combination weight is used as a group head; nodes are selected as group members according to preset transmission range and connectivity. The invention also discloses a grouping device, comprising a judging unit, a computing unit, a group head selecting unit and a selecting member unit. The invention can effectively divide users into different groups based on various factors, thus realizing resource allocation and resource scheduling by adopting group as unit.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a grouping method and device. Background technique [0002] The future development of wireless communication requires continuous wide-area coverage and higher transmission rates. With the maturity of research on ad hoc network technology and the continuous development of infrastructure networks represented by cellular networks, a network combining ad hoc networks and cellular mobile communication systems has emerged. This new network structure has gradually attracted academic attention. It is more and more concerned by the world and the industry, and is considered to be one of the important development directions of the future mobile communication system, and may become an important form of the fourth generation mobile communication or future wireless mobile communication system. Utilizing the characteristics of the ad hoc network can effectively solve some ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/08H04W72/12
Inventor 李昶冉杰董飞王亚峰杨大成
Owner BEIJING UNIV OF POSTS & TELECOMM