Apparatus and method for transmitting a reference signal in a wireless communication system
AssigneeLG Electronics Inc.
InventorsMoon Il LEE, Ja Ho KOO, Jae Hoon CHUNG, Bin Chul IHM, Hyun Soo KO
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Abstract
A method of transmitting a reference signal by a base station in a wireless communication system is provided. The method includes: generating a plurality of reference signals for channel measurement, wherein the plurality of reference signals for channel measurement are different types; and transmitting the plurality of reference signals for channel measurement, wherein the plurality of reference signals for channel measurement are transmitted using one or more subframes as a duty cycle.
Claims10
A method of receiving at least one reference signal (RS) in a wireless communication system, the method comprising:
- receiving a Radio Resource Control (RRC) signal for a first type channel state information reference signal (CSI-RS) and a second type CSI-RS,
- wherein the first type CSI-RS is an aperiodic RS or a periodic RS, and the second type CSI-RS is an aperiodic RS or a periodic RS,
- wherein the RRC signal includes first information related to a time point to receive the first type CSI-RS when the first type CSI-RS is an aperiodic RS,
- wherein the RRC signal includes second information related to a time point to receive the second type CSI-RS when the second type CSI-RS is an aperiodic RS;
- receiving at least one of the first type CSI-RS and/or the second type CSI-RS based on the RRC signal,
- wherein the first type CSI-RS is received based on a first radio resource including first consecutive resource blocks (RBs),
- wherein the second type CSI-RS is received based on a second radio resource including second consecutive RBs;
- and
- performing channel estimation based on at least one of the first type CSI-RS and/or the second type CSI-RS.
A user equipment (UE) for receiving at least one reference signal (RS) in a wireless communication system, the apparatus comprising:
- a transceiver receiving a radio signal;
- and
- a processor coupled to transceiver and configured for:
- receiving a Radio Resource Control (RRC) signal for a first type channel state information reference signal (CSI-RS) and a second type CSI-RS,
- wherein the first type CSI-RS is an aperiodic RS or a periodic RS, and the second type CSI-RS is an aperiodic RS or a periodic RS,
- wherein the RRC signal includes first information related to a time point to receive the first type CSI-RS when the first type CSI-RS is an aperiodic RS,
- wherein the RRC signal includes second information related to a time point to receive the second type CSI-RS when the second type CSI-RS is an aperiodic RS;
- receiving at least one of the first type CSI-RS and/or the second type CSI-RS based on the RRC signal,
- wherein the first type CSI-RS is received based on a first radio resource including first consecutive resource blocks (RBs),
- wherein the second type CSI-RS is received based on a second radio resource including second consecutive RBs;
- and
- performing channel estimation based on at least one of the first type CSI-RS and/or the second type CSI-RS.
Dependencies are inferred from the claim text.