Lg Electronics Inc.

Sungkyunkwan University

Sungcheol Yoo

Hakseong Kim

Yoan Shin

Mochan Yang

Ohsoon Shin

Kijun Kim

According to the present invention, a method for a relay node (RN) to reallocate a resource in order to avoid inter-cell interference (ICI) in a wireless access system includes: overhearing a control channel including downlink or uplink resource allocation information transmitted by a plurality of base stations to terminals in the coverage area of each base station; sharing the RN by means of the plurality of base stations; confirming that there is a resource area in which conflicts are occurring by comparing resource areas allocated to terminals in the coverage area of the RN through the control channel; and, if it is determined, on the basis of the confirmation result, that there is a resource area in which conflicts are occurring, reallocating a resource to the resource area in which conflicts are occurring.

Method and device for avoiding inter-cell interference in a wireless access system

A method for a relay node (RN) to avoid inter-cell interference (ICI) in a wireless access system is provided. The method includes: overhearing a PDCCH transmitted by a plurality of BSs sharing the RN to terminals of each BS in the nth subframe; decoding the PDCCH from the n+1th subframe to the n+2th subframe; reallocating resource area to the terminals; transmitting control information representing the reallocated resource area to each BS; overhearing and decoding a PUSCH to each BS in the n+4th subframe; transmitting the decoding result to each BS; overhearing a PDCCH updated at n+8th subframe; and retransmitting the PUSCH transmitted at the n+4th subframe to a BS(NACK) in the n+12th sub frame.

Method for avoiding inter-cell interference in a wireless access system

According to the disclosure of the present invention, provided is a method for operating a relay node (RN) to avoid an inter-cell interference (ICI) in a wireless access system. The method includes: overhearing the downlink signal transmitted by a plurality of base stations to terminals within the coverage area of each base station in an nsubframe; decoding the overheard downlink signal from an n+1subframe to an n+3subframe and sharing the RN through the plurality of base stations; overhearing the reply to the downlink signal transmitted by the terminals to each base station in an n+4subframe; reallocating a resource block allocated to the terminals in the nsubframe if there is at least one negative reply NACK in the replies to the downlink signal transmitted by the terminals; and transmitting control information representing the reallocated resource block to each base station.

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Incheon, South Korea

Sungcheol Yoo