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Apparatus for multiple band communication

A technology in a frequency band and within a frequency band, applied in the field of mobile communication devices, can solve the problems of increasing the cost and complexity of the size of portable communication devices, and achieve the effects of improving the performance of mobile communication and reducing the size

Inactive Publication Date: 2007-08-08
GOOGLE TECHNOLOGY HOLDINGS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, additional antennas increase the cost, size and complexity of the portable communication device

Method used

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  • Apparatus for multiple band communication
  • Apparatus for multiple band communication
  • Apparatus for multiple band communication

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] FIG. 1 is an exemplary block diagram of a mobile communication device 100 according to the first embodiment. The mobile communication device 100 may be any type of wireless communication device, such as a mobile phone, a mobile pager, or the like. The mobile communication device 100 includes an antenna 110 , a front-end module 120 , and an input / output circuit 140 . The antenna 110 can be internal or external to the mobile communication device 100 . In operation, the antenna 110 transmits and / or receives mobile communication signals in at least one frequency band. The front-end module 120 monitors another frequency band and, depending on system availability in the respective frequency band, may switch the mobile communication device to operate on the other frequency band. The controller 140 controls the operations of the components of the mobile communication device 100 . For example, the controller 140 includes a microprocessor, data memory, program memory, and / or c...

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PUM

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Abstract

A mobile communication device (200) that includes an antenna (210) configured to send and / or receive a first signal in a first frequency band and a second signal in a second frequency band, first receiver circuitry (260) configured to receive signals in the first frequency band, a switch (220) having a first position, and a first diplexing network (230) coupled to the antenna, the first diplexing network also coupled to the switch, and first diplexing network also coupled to the first receiver circuitry. The first diplexing network can be configured to pass signals in the first frequency band to the first receiver circuitry and to block signals in the second frequency band from the first receiver circuitry. The first diplexing network can also be configured to pass signals in the second frequency band to the switch. The mobile communication device can also include a second diplexing network (232) coupled to the switch at the first position, the second diplexing network corresponding to the second frequency band.

Description

technical field [0001] The present invention relates to methods and devices for multi-band communication. More specifically, the present invention relates to mobile communication devices that can access multiple systems simultaneously. Background technique [0002] Presently, the advent of third generation and higher mobile wireless communication systems has resulted in a need for mobile communication handsets that can access multiple communication systems, such as GSM and WCDMA communication systems serving a common geographic area. Full utilization of multi-communication system services requires a multi-mode wireless mobile communication device to operate on more than one communication system simultaneously and efficiently transition between communication systems without significant performance degradation. [0003] Unfortunately, current multimode and multiband wireless communication devices cannot access more than one communication system simultaneously. For example, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/00H04B7/00H04B1/50
CPCH04B1/406H04B1/50H04B1/40H04W88/06
Inventor 罗斯·拉赫吕姆兰迪·维斯纳
Owner GOOGLE TECHNOLOGY HOLDINGS LLC