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Methods and apparatus for wireless system communication

A technology of wireless systems and wireless devices, applied in transmission systems, electrical components, etc.

Inactive Publication Date: 2007-09-19
MEDIATEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, since PHS has no commercial success in Japan, hardware manufacturers are reluctant to invest large amounts of money in the design and further development of PHS hardware (eg, base station and mobile unit chipsets)

Method used

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  • Methods and apparatus for wireless system communication
  • Methods and apparatus for wireless system communication
  • Methods and apparatus for wireless system communication

Examples

Experimental program
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Embodiment Construction

[0018] One embodiment of the invention relates to the operation of hardware (eg GSM equipment) designed to work with a different cellular network in a PHS network. This can be done in any suitable way. For example, hardware designed to work with another cellular network can be software programmed to work with a PHS network.

[0019] Using hardware in a cellular network other than the network in which the hardware was designed to work can present challenges because the cellular network may use a different network than the network in which the hardware was designed to work different timing schemes.

[0020] For example, in many cellular networks, a mobile unit is synchronized in time with the base station of the cell in which the mobile unit is located. This timing synchronization allows the mobile unit to transmit data when the base station expects to receive data from the mobile unit, and to receive data from the base station when the base station expects to transmit data. ...

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PUM

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Abstract

One embodiment of the invention is directed to operating, in a wireless network, a device that is designed for operation in a different wireless network. In one embodiment, a device designed to operate in a GSM wireless network may be used to communicate in a PHS wireless network.

Description

technical field [0001] The present invention generally relates to wireless communications. Background technique [0002] The Personal Handyphone System (PHS) is a lightweight mobile communication system that utilizes the existing public telephone network by building on the existing landline network. Because base stations in a PHS network have a much smaller coverage radius than base stations in a typical cellular network, and because PHS mobile units employ low power transmitters, PHS is best suited for densely populated areas. PHS was first deployed in Japan in the early 1990s with the aim of providing a low-cost alternative to cellular networks. However, the PHS was not commercially successful as many subscribers were disappointed by its limited mobility, poor signal quality, and limited ability to work in moving vehicles. [0003] Despite a less than enthusiastic public response in Japan, PHS has recently been deployed in other populated areas of Asia in an attempt to p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/16H04W56/00H04W88/02
CPCH04B1/0003H04B1/406
Inventor 严爱国
Owner MEDIATEK INC