Apparatus for transmitting and receiving data in a wireless communication system and method thereof
AssigneeLG Electronics Inc.
InventorsMoon Il Lee, Seung Hee Han, Jae Hoon Chung, Hyun Soo Ko, Bin Chul Ihm
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Abstract
An apparatus for transmitting and receiving data in a wireless communication system. In a terminal of a wireless communication system, the present invention includes receiving a physical downlink control channel (PDCCH), receiving a physical downlink shared channel (PDSCH), and demodulating the PDSCH by interpreting the PDCCH according to a type of a subframe including the PDCCH and the PDSCH.
Claims12
A method of receiving, by a terminal, data in a wireless communication system, comprising:
- receiving a physical downlink control channel (PDCCH) in a subframe;
- receiving a physical downlink shared channel (PDSCH) corresponding to the PDCCH in the subframe;
- and
- demodulating the PDSCH according to a type of the subframe,
- wherein the PDSCH is demodulated using a cell specific reference signal when the subframe is a first type subframe of which PDSCH region includes the cell specific reference signal, and
- wherein the PDSCH is demodulated using a demodulation reference signal when the subframe is a second subframe of which PDSCH region includes no cell specific reference signal.
A terminal for receiving data in a wireless communication system, comprising:
- a receiving module configured to receive a physical downlink control channel (PDCCH) and a physical downlink shared channel (PDSCH) corresponding to the PDCCH in a subframe;
- and
- a processor configured to demodulate the PDSCH according to a type of the subframe,
- wherein the processor demodulates the PDSCH using a cell specific reference signal when the subframe is a first type subframe of which PDSCH region includes the cell specific reference signal, and
- wherein the processor demodulates the PDSCH using a demodulation reference signal received in the subframe when the subframe is a second subframe of which includes no cell specific reference signal.
A method of transmitting, by a base station, data to a terminal in a wireless communication system, comprising:
- transmitting a physical downlink control channel (PDCCH) in a subframe to the terminal;
- and
- transmitting a physical downlink shared channel (PDSCH) corresponding to the PDCCH in the subframe to the terminal according to a type of the subframe,
- wherein the PDSCH is transmitted through a single antenna or multiple antennas for transmit diversity, according to a number of cell specific reference signals, when the subframe is a first type subframe of which PDSCH region includes one or more cell specific reference signals, and
- wherein the PDSCH is transmitted with a demodulation reference signal for the PDSCH through a single antenna when the subframe is a second type subframe of which PDSCH region includes no cell specific reference signal.
A base station for transmitting data to a terminal in a wireless communication system, comprising:
- a transmitting module;
- and
- a processor configured to control the transmitting module,
- wherein the transmitting module transmits a physical downlink control channel (PDCCH) in a subframe to the terminal;
- and transmits a physical downlink shared channel (PDSCH) corresponding to the PDCCH in the subframe to the terminal according to a type of the subframe,
- wherein the processor controls the transmitting module to transmit the PDSCH through a single antenna or multiple antennas for transmit diversity, according to a number of cell specific reference signals, when the subframe is a first type subframe of which PDSCH region includes one or more cell specific reference signals, and
- wherein the processor controls the transmitting module to transmit the PDSCH with a demodulation reference signal for the PDSCH through a single antenna when the subframe is a second type subframe of which PDSCH region includes no cell specific reference signal.
Dependencies are inferred from the claim text.