US 8,797,984 B2 · Signal transmitting and receiving method of repeater and repeater using the same

Abstract

The present invention relates to a method for a repeater to transmit and receive a signal on a downlink sub frame in a wireless communication system, comprising the steps of: transmitting a first physical downlink control channel (PDCCH) to terminals positioned within a repeater cell on a downlink sub frame; and receiving a second PDCCH or a physical downlink shared channel (PDSCH) from a base station after a first guard time succeeding a first PDCCH section elapses, wherein a second guard time succeeding the PDSCH or the second PDCCH received from the base station is allocated to the downlink sub frame, and the repeater receives the second PDCCH through a certain range of symbols in accordance with information on the predetermined control channel section, which is received from the base station.

Claims16

Dependent claims

A method for transmitting and receiving a signal in a downlink subframe at a relay in a wireless communication system, the method comprising:

transmitting, by the relay, a first Physical Downlink Control CHannel (PDCCH) in a downlink subframe to User Equipments (UEs) within a relay cell;
and
receiving, by the relay, a second PDCCH or a Physical Downlink Shared CHannel (PDSCH) from a Base Station (BS) after a first guard time following the first PDCCH,
wherein a second guard time is allocated after the second PDCCH or the PDSCH received from the BS in the downlink subframe and the relay receives the second PDCCH in a first predetermined number of symbols according to specific control channel region information received from the BS, and
wherein the first PDCCH is transmitted after the sum of a time corresponding to a propagation delay from the start of the downlink subframe and a time corresponding to a specific number of symbols.

2 more elements

A relay for transmitting and receiving a signal in a downlink subframe in a wireless communication, the relay comprising:

a reception module for receiving a radio signal in a downlink subframe;
a transmission module for transmitting a first Physical Downlink Control CHannel (PDCCH) in the downlink subframe to User Equipments (UEs) within a relay cell;
and
a processor for receiving a second PDCCH or a Physical Downlink Shared CHannel (PDSCH) from a Base Station (BS) through the reception module after a first guard time following the first PDCCH,
wherein the processor allocates a second guard time after the second PDCCH or the PDSCH received from the BS in the downlink subframe and receives the second PDCCH in a first predetermined number of symbols through the reception module according to specific control channel region information received from the BS, and
wherein the reception module is configured to receive the first PDCCH after the sum of a time corresponding to a propagation delay from the start of the downlink subframe and a time corresponding to a specific number of symbols.

3 more elements

Dependencies are inferred from the claim text.

Signal transmitting and receiving method of repeater and repeater using the same

Life of this patent

Signal transmitting and receiving method of repeater and repeater using the same

Life of this patent

Abstract

Claims16