Method of transceiving signal at relay node in wireless communication system and apparatus thereof
First Claim
1. A method for transmitting and receiving a signal at a relay node in a wireless communication system, the method comprising:
- transmitting and receiving a relay-user equipment (UE) link signal through a relay access subframe;
switching a communication link from a relay-UE link to a relay-base station (BS) link during a predetermined time; and
transmitting and receiving a relay-BS link signal through a backhaul subframe,wherein, if a propagation delay is present in the relay-BS link, then;
a timing edge of the relay access subframe is configured to have an offset value with respect to an uplink subframe of the backhaul subframe in order that the timing edge of the relay access subframe is located ahead of the uplink subframe of the backhaul subframe by the offset value,the uplink subframe edge of the backhaul subframe is located ahead of the timing edge of a reference subframe edge by the symbol length corresponding to the propagation delay,a downlink subframe edge of the backhaul subframe is located behind the timing edge of a reference subframe edge by the symbol length corresponding to the propagation delay, andthe timing edge of the backhaul subframe corresponds to a starting timing of a first symbol of the backhaul subframe, and an index of the first symbol is 0.
1 Assignment
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Accused Products
Abstract
A method for allowing a relay node (RN) to transmit and receive in a wireless communication system is disclosed. A method for transmitting and receiving a signal at a relay node in a wireless communication system includes transmitting and receiving a relay-User Equipment (UE) link signal through an access subframe, switching a communication link from a relay-UE link to a relay-base station (BS) link during a predetermined time, and transmitting and receiving a relay?BS link signal through a backhaul subframe. A timing edge of the access subframe is located ahead of a timing edge of an uplink subframe of the backhaul subframe by an offset value.
8 Citations
10 Claims
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1. A method for transmitting and receiving a signal at a relay node in a wireless communication system, the method comprising:
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transmitting and receiving a relay-user equipment (UE) link signal through a relay access subframe; switching a communication link from a relay-UE link to a relay-base station (BS) link during a predetermined time; and transmitting and receiving a relay-BS link signal through a backhaul subframe, wherein, if a propagation delay is present in the relay-BS link, then; a timing edge of the relay access subframe is configured to have an offset value with respect to an uplink subframe of the backhaul subframe in order that the timing edge of the relay access subframe is located ahead of the uplink subframe of the backhaul subframe by the offset value, the uplink subframe edge of the backhaul subframe is located ahead of the timing edge of a reference subframe edge by the symbol length corresponding to the propagation delay, a downlink subframe edge of the backhaul subframe is located behind the timing edge of a reference subframe edge by the symbol length corresponding to the propagation delay, and the timing edge of the backhaul subframe corresponds to a starting timing of a first symbol of the backhaul subframe, and an index of the first symbol is 0. - View Dependent Claims (2, 3, 4, 5)
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6. A relay device for use in a wireless communication system, the relay device comprising:
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a transceiver configured to transmit and receive a relay-user equipment (UE) link signal through a relay access subframe, or transmit and receive a relay-base station (BS) link signal through a backhaul subframe; and a processor configured to switch a communication link from a relay-UE link to a relay-base station (BS) link during a predetermined time, wherein, if a propagation delay is present in the relay-BS link, then; a timing edge of the relay access subframe is configured to have an offset value with respect to an uplink subframe of the backhaul subframe in order that the timing edge of the relay access subframe is located ahead of the uplink subframe of the backhaul subframe by the offset value, the uplink subframe edge of the backhaul subframe is located ahead of the timing edge of a reference subframe edge by the symbol length corresponding to the propagation delay, a downlink subframe edge of the backhaul subframe is located behind the timing edge of a reference subframe edge by the symbol length corresponding to the propagation delay, and the timing edge of the backhaul subframe corresponds to a starting timing of a first symbol of the backhaul subframe, and an index of the first symbol is 0. - View Dependent Claims (7, 8, 9, 10)
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Specification