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Resource utilisation between different frequency bands by compensating handover parameter values with a frequency band preference parameter

A technology for switching parameters and parameter compensation, applied in the direction of selection device, wireless communication, radio/induction link selection arrangement, etc. The effect of optimizing performance

Inactive Publication Date: 2005-09-28
MOTOROLA MOBILITY LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although this can achieve acceptable handover performance in each individual cell, it is a very complex approach and only optimizes a local resource distribution
[0022] Therefore, current methods result in reduced capacity of the communication system and degraded service to users

Method used

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  • Resource utilisation between different frequency bands by compensating handover parameter values with a frequency band preference parameter
  • Resource utilisation between different frequency bands by compensating handover parameter values with a frequency band preference parameter
  • Resource utilisation between different frequency bands by compensating handover parameter values with a frequency band preference parameter

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Embodiment Construction

[0045] In the following, the preferred embodiment of the present invention is mainly described by referring to the GSM cellular communication system. However, it will be apparent that the present invention can be applied to many other communication systems, including, for example, third-generation cellular communication systems.

[0046] In a cellular communication system, the fixed infrastructure typically includes complex functions for managing resource allocation, especially functions for managing subscriber unit handover. The user unit can typically be a wireless user equipment, a mobile station, a communication terminal, a personal digital assistant, a laptop computer, an embedded communication processor, or any communication element that communicates through an air interface.

[0047] Figure 2 is a simplified diagram of the GSM communication system structure. In a typical GSM cellular communication system, a large number of base station controllers (BSC) 201 (not shown) are ...

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Abstract

The invention relates to a cellular communication system comprising a plurality of frequency bands. A central frequency band processor (317) located at a Base Station Controller (BSC) (303) determines a preferred frequency and sets a frequency band preference parameter accordingly. The frequency band preference parameter is communicated to a plurality of base stations (305, 307, 309). Each base station has a handover controller (311) which determines handover parameters for a plurality of candidate cells for a handover of a subscriber unit. The handover parameter values associated with the first frequency are compensated by the frequency band preference parameter, and the handover controller (311) reorders the candidates accordingly. A target handover candidate is then determined from the reordered list. The invention is particularly applicable to a GSM cellular communication system.

Description

Technical field [0001] The present invention relates to a cellular communication system, a base station, and a method of resource utilization thereof, and in particular, to a cellular communication system of the Global System for Mobile Communications (GSM). Background technique [0002] Fig. 1 illustrates the principle of a conventional cellular communication system 100 according to the prior art. The geographic area is divided into multiple cells 101, 103, 105, 107, and each cell is served by a base station 109, 111, 113, 115. The base stations are connected to each other through a fixed network, which can transmit data between the base stations 101, 103, 105, and 107. The base station of the cell in which the mobile station is located provides services to the mobile station through a wireless communication link. In the example of FIG. 1, the mobile station 117 is served by the base station 109 on the wireless link 119, the mobile station 121 is provided by the base station 111...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/02H04W36/06H04W36/08H04W36/20
CPCH04W36/08H04W16/02H04W36/06H04W36/20
Inventor 张友领爱德华·克兰霍华德·托马斯
Owner MOTOROLA MOBILITY LLC
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