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Data transceiving method and apparatus based on communication system provided with relay station

A data sending and receiving and communication system technology, applied in wireless communication, electrical components, network planning, etc., can solve the problems of low utilization rate of air interface resources and interference with data reception, etc., and achieve the effect of improving utilization rate and ensuring feasibility

Active Publication Date: 2009-08-05
DATANG MOBILE COMM EQUIP CO LTD
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  • Claims
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Problems solved by technology

[0011] In fact, when the relay station forwards public data to a certain terminal, the base station may also send different data to the same terminal on the same time-frequency resource, which will inevitably interfere with the data reception of the corresponding terminal; however, If the relay station and the base station transmit data on different time-frequency resources, it will lead to the problem of low utilization of air interface resources

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  • Data transceiving method and apparatus based on communication system provided with relay station
  • Data transceiving method and apparatus based on communication system provided with relay station
  • Data transceiving method and apparatus based on communication system provided with relay station

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Embodiment Construction

[0063] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0064] The present invention can be used in numerous general purpose or special purpose communication system environments or configurations with relay stations. For example: B3G system, WIMAX system and so on.

[0065] One of the core concepts of the embodiments of the present invention is that, in order to reduce the occupation of air interface resources, the base station and the relay station in the cell can transmit and receive data on the same time-frequency resource, and eliminate the interference caused by the relay station to the target terminal during the data transmission and reception process. interference and the interference caused by the base station sending new data to the relay station. That is, by reducing the int...

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Abstract

The invention provides a data sending and receiving method based on a communication system with a relay station, which comprises the steps: in cells, a base station broadcasts / multicasts common data to a terminal and the relay station covered by the base station; the relay station transmits the common data to a terminal covered by the relay station, the base station uses time frequency resources the same as the data transmitted by the relay station, and a target terminal is selected to send out new data; and interference to the target terminal caused by the relay station and interference to the relay station formed by the new data transmission of the base station are eliminated. The method can reduce the interference when the base station and the relay station use the time frequency resources simultaneously and improve the utilization rate of empty-port resources.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method for sending and receiving data based on a communication system with a relay station and a data sending and receiving device based on a communication system with a relay station. Background technique [0002] In traditional cellular communication systems, the coverage of base stations is generally small. If only relying on line-of-sight (LOS) transmission, the shadow fading of the channel will be very obvious due to the presence of tall buildings, and the quality and rate of the signal will be reduced. With the increasing demand of users for wireless communication, the new generation of wireless communication system needs to provide higher transmission rate, better signal coverage and stronger mobility. According to this demand, the existing technology proposes relay technology . [0003] The relay technology is to install a relay station (Relay St...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/26H04W88/08
Inventor 蒋海林鲍炜毕海洲
Owner DATANG MOBILE COMM EQUIP CO LTD