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Radio relay station apparatus and radio relay method

A relay station, radio technology, applied in the direction of radio relay system, radio transmission system, electrical components, etc.

Inactive Publication Date: 2010-06-30
FUJITSU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the baseband regenerative relay method, processing delays occur due to demodulation processing, decoding processing, baseband signal processing, encoding processing, and modulation processing

Method used

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  • Radio relay station apparatus and radio relay method
  • Radio relay station apparatus and radio relay method
  • Radio relay station apparatus and radio relay method

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Embodiment Construction

[0030] Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. figure 1 is an overall diagram showing the configuration of the radio relay station device according to the first embodiment of the present invention. The radio relay station device 1 relays a radio signal transmitted on the downlink from a base station device (BS) to a mobile station device (hereinafter also referred to as user equipment (UE)). That is, the radio relay station device 1 receives a radio signal transmitted from a base station device (BS) to a mobile station device (UE), and transmits the radio signal to the mobile station device (UE) after amplifying the radio signal. The radio relay station device 1 relays a radio signal transmitted from a mobile station device (UE) to a base station device (BS) on an uplink. That is, the radio relay station device 1 receives a radio signal transmitted from a mobile station device (UE) to a base st...

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Abstract

Relaying a radio signal in a radio relay station apparatus that relays the radio signal between a base station apparatus and a mobile station apparatus, including storing an identifier of the mobile station apparatus, specifying a radio resource assigned to the mobile station apparatus, which is a radio resource in which a radio signal that should be amplified is transmitted, the radio resource assigned to the mobile station apparatus being indicated by control channel information sent from the base station apparatus, and receiving the radio signal between the base station apparatus and the mobile station apparatus. Further including amplifying the received signal, the received signal being transmitted on the specified radio resource, and sending the amplified signal in a form of the radio signal.

Description

technical field [0001] The present invention relates to a radio relay station device and a radio relay method capable of receiving a radio signal transmitted and received between a base station device and a mobile station device and transmitting the radio signal after amplifying the radio signal. Background technique [0002] As a method of relaying radio signals, a radio frequency (RF) direct amplification method (ie, a non-regenerative relay method) and a baseband regenerative relay method are known. In the RF direct amplification method, the received radio signal is amplified non-regeneratively. In the baseband regenerative relay method, a received signal is restored to a baseband signal by demodulation and decoding, and encoding and modulation are performed after the original signal is reproduced by correcting errors or the like. [0003] There is known a technique in which a subcarrier whose reception quality is lower than a specified level is selected and amplified ba...

Claims

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Application Information

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IPC IPC(8): H04B7/26H04B7/14
CPCH04B7/15542H04B7/15585Y02D30/70
Inventor 筒井正文
Owner FUJITSU LTD
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