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Radio communication repeater

A repeater and signal conversion technology, which is applied in the field of indoor communication and can solve problems such as signal interference

Inactive Publication Date: 2005-09-14
INTERDIGITAL CE PATENT HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, these signals are strongly reflected by obstacles, creating interference with the transmitted signal

Method used

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  • Radio communication repeater
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Embodiment Construction

[0012] In the following description, it is assumed that the transmission frequency band is located between 5.15 and 5.825 GHz, and is divided into a first frequency band, such as between 5.15 and 5.35 GHz, for Europe and the United States; and a second frequency band, such as between 5.5 and 5.7 GHz. between.

[0013] figure 1 A repeater with two signal paths is shown. The first signal path includes a first receiving antenna ARx1 connected to a first filter 10 for receiving a signal in a first frequency band and converting it into an electrical signal, and the first filter 10 has a signal corresponding to the first frequency band Passband bandpass filter. The first amplifier 11 amplifies the signal from the first filter 10 and transmits it to the first mixer 12 . The first mixer 12 mixes the signal from the first amplifier 11 with a signal such as a frequency of 4.15 GHz from the first local oscillator OSC1. The second filter 13 selects from the output of the first mixer 1...

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Abstract

The invention proposes a repeater designed for indoor transmissions. The useful frequency band is split into two frequency bands and the repeater amplifies the signals from one of the bands and translates them to the other band. The transposition of frequency bands results in preventing creating significant interference effects on the signal to be amplified. A management circuit is used to address, at lower cost, interference problems between the bands.

Description

technical field [0001] The present invention relates to a radio communication repeater, more particularly for indoor communication. Background technique [0002] Radio communication repeaters are used to amplify the signal to increase the range of the transmitter. The use of transponders for broadcast signals is known. A receiving antenna pointed at the transmitter receives a signal that is amplified and then transmitted through another antenna whose radiation is not covered by the receiving antenna. In some cases, the broadcast signal comes from a satellite and is converted to another frequency band in order to broadcast in a more restricted frequency band. [0003] For indoor communications, it is known to use frequency bands located at about 2.4 GHz and about 5 GHz and used for wireless home networks. However, these radio frequencies do not propagate through walls and ceilings easily, or at all. Such systems try to cover large houses with multiple floors and a large n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/15H04B7/155H04B7/26
CPCH04B7/15542
Inventor 雷诺·多尔卢多维克·让娜弗朗索瓦·巴龙
Owner INTERDIGITAL CE PATENT HLDG