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Radio access system with extended service coverage

A wireless access system and coverage area technology, applied in the field of wireless communication systems, can solve problems such as unreasonable interconnection, and achieve the effects of enhanced reliability, flexible network planning, and service separation reliability

Active Publication Date: 2006-11-22
ALCATEL LUCENT SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem with this approach is that, for areas with low user density, the use of additional base stations and the interconnection between these base stations and the core network is not justified if the base station is only serving a small number of new users

Method used

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  • Radio access system with extended service coverage
  • Radio access system with extended service coverage
  • Radio access system with extended service coverage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] figure 1 A general block diagram of a radio access system is shown, comprising a main base station MBS, a plurality of subscriber units SU1-SU4 and a hybrid intermediate unit HIU according to the invention.

[0017] The hybrid intermediate unit HIU can be used both as a subscriber unit for establishing contact and exchanging communication data with the main base station MBS and as a base station for communication between the main base station MBS and at least one further subscriber unit SU3 and / or SU4 Forward communication data. The subscriber units SU3 and / or SU4 dependent on the hybrid intermediate unit HIU may be located, for example, outside the reach of the radio service coverage area CA1 of the main base station MBS, but within the radio service coverage area CA2 of the hybrid intermediate unit, or Subscriber units SU3 and / or SU4 may request service from nearby hybrid intermediate units if the quality of service they receive from the master base station is below...

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PUM

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Abstract

The invention relates to a method for extending the service coverage of a radio access system comprising a main base station (MBS) serving +- plurality of subscriber units (SU1 to SU4) in a service coverage area (CA), in which at least one hybrid intermediate unit (HIU) acts as a wireless relay station for transmission of information between the main base station (MBS) and one or more subscriber units (SU3 and / or SU4) located outside the service coverage area (CA) of the main base station, and in which the hybrid intermediate unit (HIU) behaves both as a subscriber unit of the main base station (MBS) and as a base station serving the one or more subscriber units (SU3 and / or SU4) located outside the service coverage area (CA) of the main base station.

Description

technical field [0001] The present invention relates to wireless communication systems, and more particularly to systems and methods for extending the service coverage of base stations in wireless access systems. Background technique [0002] In a wireless access system, one or more users within a service coverage area of ​​a certain cell are connected to a base station via a wireless link. Due to physical limitations such as allowable transmit power, radio propagation conditions, terrain topology, the cell service coverage area of ​​a base station is limited, and therefore additional means need to be used to provide services to users located outside the coverage area. [0003] One method for extending the service coverage area of ​​a wireless access system is to form a network of service area cells in which a number of base stations are located in suitable proximity. The problem with this approach is that, for areas with low user density, the use of additional base station...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/38H04B7/24
CPCH04B7/15507
Inventor 托马斯·罗尔夫·班尼察哈迪·哈尔鲍尔
Owner ALCATEL LUCENT SAS