A wireless channel allocation method based on cells along the train

A cell and wireless channel technology, applied in wireless communication, electrical components, etc., can solve problems such as resource shortage, and achieve the effect of avoiding waste and solving resource shortage.

Inactive Publication Date: 2011-12-28
BEIJING JIAOTONG UNIV
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  • Abstract
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a wireless channel allocation method based on the

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  • A wireless channel allocation method based on cells along the train
  • A wireless channel allocation method based on cells along the train
  • A wireless channel allocation method based on cells along the train

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[0023] The present invention will be further described below in conjunction with the description of the drawings and the specific embodiments.

[0024] In the present invention, based on the train number, the cell type covered on the train running route is a linear cell, so the driving direction is fixed, and the train number is combined to perform predictive wireless channel allocation. Specifically, since the route traveled by each train is fixed, a list of the cells passed along by each train within the network-side control range can be stored in the network-side database according to the train number. When a train is about to depart, it needs to register the train number in the network, and the network side can know the cell that the train will pass along the way based on the train number.

[0025] Such as figure 1 As shown, a wireless channel allocation method based on cellular cells along trains includes the following steps:

[0026] (1) Train number registration step S1, the ...

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Abstract

The invention discloses a method for distributing wireless channels based on cells along a railway. The method comprises the following steps of: registering a train identity; drawing up a railway cell list; forecasting the arrival of a train; preserving resources on a base station; withdrawing wireless resources for the base station; and logging off the train identity. In the invention, wireless channels are distributed to linear cells covered on the running route of the train according to the characteristic of fixed running direction of the train, so that the problem of wireless resource tension caused after the arrival of a highs-speed train at a certain cell is solved effectively, and the frequency spectrum utilization ratios of cells along the railway are increased.

Description

technical field [0001] The invention relates to the field of railway and cellular digital mobile communications, in particular to a method for allocating wireless channels based on cellular cells along train lines. Background technique [0002] Wireless resource allocation is an important link layer technology, which plays an irreplaceable role in improving the capacity of wireless networks. In terms of scope, radio resource management is divided into three main parts: radio resource allocation, mobility management, and spectrum management. Wherein, the wireless resource allocation is based on the performance of a single user in the wireless system or all users in a cell, and allocates wireless resources in the system to each user. The channel allocation mechanism is used to resolve which channel is allocated to the user in the system. It achieves the purpose of improving system capacity or user service quality by allocating and scheduling channel resources of different di...

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Application Information

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IPC IPC(8): H04W72/04
Inventor 吴昊温士雅王惠生
Owner BEIJING JIAOTONG UNIV
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