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Wireless communication system, wireless terminal, management apparatus, and session control method

A wireless communication system and wireless terminal technology, applied in the field of wireless communication systems, can solve problems such as troublesome design, ratios are not different from each other, etc.

Inactive Publication Date: 2009-12-02
NEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a need for a cell design in which the ratios of uplink bandwidth and downlink bandwidth of cells including overlapping coverage are not different from each other, which leads to troublesome design

Method used

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  • Wireless communication system, wireless terminal, management apparatus, and session control method
  • Wireless communication system, wireless terminal, management apparatus, and session control method
  • Wireless communication system, wireless terminal, management apparatus, and session control method

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Embodiment Construction

[0037] A configuration in which the present invention is implemented will be described with reference to the accompanying drawings.

[0038] figure 1 is a block diagram showing the configuration of the wireless communication system of this exemplary embodiment. refer to figure 1 , the wireless communication system includes a wireless access network 12 connected to an IP (Internet Protocol) network 11 . The radio access network 12 includes base station devices 13 and 14 and a gateway device 15 . The base station devices 13 and 14 are connected to the gateway device 15 .

[0039] The gateway device 15 becomes a gateway connecting the wireless access network 12 to the IP network 11 .

[0040] Each of the base station apparatuses 13 and 14 is also connected to the wireless terminal 16 via a wireless line including an uplink channel and a downlink channel, and communicates the communication of the wireless terminal 16 using the uplink channel and the downlink channel.

[0041]...

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Abstract

The invention relates to a wireless communication system, a wireless terminal, a management apparatus, and a session control method A first base station apparatus time division multiplexes an upstream channel and a downstream channel at a first ratio into a first frequency, and uses the upstream channel and the downstream channel in a predetermined coverage to relay a communication of a wireless terminal. In a coverage overlapping the coverage of the first base station apparatus, a second base station apparatus time division multiplexes an upstream channel and a downstream channel at a second ratio which is different from the first ratio, into a second frequency which is different from the first frequency, and uses the upstream channel and the downstream channel to relay a communication of the wireless terminal.

Description

[0001] This application is based on Japanese Patent Application No. 2008-139510 filed on May 28, 2008, and claims priority benefiting from this application, the contents of which are incorporated by reference. technical field [0002] The present invention relates to a wireless communication system in which an uplink signal and a downlink signal are time-division multiplexed. Background technique [0003] In some wireless communication systems in which a cell formed by a wireless base station covers a communication area, and within the communication area communication can be achieved by wireless terminals, uplink signals from the wireless terminal to the wireless base station are time-division multiplexed, and from the wireless base station to the wireless terminal The downlink signal is time-division multiplexed. For example, in WiMAX (Worldwide Interoperability for Microwave Access), a communication area is covered by, for example, a macro cell, a micro cell, or a femto ce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/24H04W48/20H04W88/02H04W88/08H04J3/16
CPCH04W16/32
Inventor 森濑和宏
Owner NEC CORP