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Two-hop cellular relay network switching method for base station integrated control

A technology of centralized control and base station, applied in data exchange network, access restriction, digital transmission system, etc., can solve the problems of complicated cellular relay network handover, increase of switchable targets, complicated network topology, etc., so as to reduce network information. The effect of reducing load, improving resource utilization, and reducing handover failure rate

Inactive Publication Date: 2012-02-29
BEIJING UNIV OF POSTS & TELECOMM
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  • Application Information

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Problems solved by technology

With the introduction of relay technology, in addition to the original base stations and terminals, new network elements such as relay stations have been added to the network, and the transmission path has also increased the relay chain between the base station and the relay station. road, and the user link between the relay station and the user, it can be seen that due to the increase of switchable targets and the complexity of the network topology, the handover of the cellular relay network will be more complicated than that of the traditional cellular network

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  • Two-hop cellular relay network switching method for base station integrated control
  • Two-hop cellular relay network switching method for base station integrated control
  • Two-hop cellular relay network switching method for base station integrated control

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Embodiment Construction

[0072] Combine below Figure 1 to Figure 4 To describe the switching method of the present invention.

[0073] First, both the MS and the BS of the cell to which it belongs should maintain a set of candidate access stations for the MS Alternate access station k=1, 2, ..., K, K is the number of candidate access stations for the MS. The access station may be a BS or RS in the current cell or a BS or RS in a neighboring cell.

[0074] Secondly, the handover method includes a handover triggering method module and a handover decision method module, wherein the former can be located at either the MS side or the network side, and is determined by different networks and devices. The latter is on the network side.

[0075] Thirdly, at the BS side, a signaling overhead matrix S should be configured for the handover trigger module according to the handover signaling overhead of the current network, and a resource release gain matrix G should be configured for the handover decision ...

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Abstract

The method includes steps: (1) constructing cost function corresponding to following different application scenes including measured results of synthesis mobile station, switching types, mobility of mobile station, and one or more types of current service; (2) based on the constructed cost function to calculate minimal cost function (MCF) values of users' links to be selected, and calculate cost function of current user's link; (3) when MCF value of a user's link to be selected is smaller than cost function of current user's link, then, the method requests the mobile station to switch to target access station corresponding to the user's link with lowest MCF.

Description

technical field [0001] The invention relates to a switching method of a two-hop cellular relay network suitable for centralized control of base stations. Background technique [0002] With the continuous development of broadband wireless communication technology, the demand for high-speed data services in future wireless communication networks will continue to increase, and at the same time, higher requirements will be put forward for the enhancement of system throughput and coverage. This requires not only the adoption of advanced transmission technologies, but also the support of new network architectures. The introduction of relay technology in traditional cellular networks can not only increase the data transmission rate of users, but also expand the coverage of wireless communication to achieve the characteristics of uniform data transmission rate (uniform data rate), thus making up for the shortcomings of the existing system. Reduce network investment and operating co...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04W36/08H04W36/30H04W48/20
Inventor 王莹张平束超吴彤俞欣旻黄晶
Owner BEIJING UNIV OF POSTS & TELECOMM