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A Carrier Allocation Method for Virtual Cell Based on Maximum SNR

A virtual cell and carrier allocation technology, applied in wireless communication, electrical components, etc., can solve the problems of poor signal reception quality of edge users and low system average spectrum efficiency, so as to improve signal reception quality and system average spectrum efficiency , the effect of increasing capacity

Active Publication Date: 2019-12-31
HOHAI UNIV
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  • Claims
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AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the defects of the prior art, provide a virtual cell carrier allocation method based on maximum SNR, and solve the problems of poor signal reception quality of edge users and low average spectrum efficiency of the system

Method used

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  • A Carrier Allocation Method for Virtual Cell Based on Maximum SNR
  • A Carrier Allocation Method for Virtual Cell Based on Maximum SNR
  • A Carrier Allocation Method for Virtual Cell Based on Maximum SNR

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Embodiment Construction

[0028] The present invention will be further described below. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0029] Now, the standard of Component Carrier Allocation based on the Maximum SNR (CAMS) is described as follows:

[0030] (1) User r selects the initial serving small base station according to formula (1), if the set of these small base stations is the virtual cell Ω of user s s A subset of , then r and s are located in the same virtual cell Ω s .

[0031] (2) Each small base station in a virtual cell uses the same CC to provide services for users in the virtual cell.

[0032] (3) If the small base station m wants to serve users in different virtual cells, then for a certain CC, the small base station always uses this CC to serve the user that receives the strongest signal from the base station. For example, suppose the small base stat...

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Abstract

The invention discloses a method for allocating carriers of a virtual cell based on the maximum SNR, which includes determining an initial serving virtual cell, judging whether it belongs to an existing virtual cell, and if not, determining a target carrier, and calculating and using the target carrier to serve the existing virtual cell The small base stations are assembled, the signal-to-noise ratio is judged, and the target carrier is selected. The method of the present invention allows small base stations with better service quality to withdraw from some original virtual cells through mutual cooperation among virtual cells, and use corresponding component carriers to serve users in the newly added virtual cells. The invention can improve the signal receiving quality of the edge user and the average spectrum efficiency of the system, and increases the capacity of the system.

Description

technical field [0001] The invention relates to a maximum SNR-based virtual cell carrier allocation method, which belongs to the technical field of mobile communication. Background technique [0002] In recent years, with the rapid popularization of smart terminals, mobile network data usage has shown explosive growth. The rapid growth of mobile data traffic has made the contradiction between limited wireless network resources and rapidly expanding user demands increasingly prominent. Obviously, the third-generation mobile communication network is difficult to meet the needs of today's people due to its limitations in system capacity and transmission rate. Therefore, it is necessary to take various measures to adjust and improve to cope with the impact of large data traffic. [0003] With the continuous evolution of LTE-Advanced, the deployment of small base stations will be very dense, and the distance between small base stations can reach 10 meters or less, thus forming a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04
CPCH04W72/0453H04W72/52H04W72/53
Inventor 谭国平郗文胜王凯李岳衡居美艳李旭杰
Owner HOHAI UNIV
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