Apparatus for transmitting and receiving signal in distributed antenna system
The present invention relates to a method for receiving a signal through a terminal in a distributed antenna system (DAS) comprising the steps of: receiving composition information of a local midamble corresponding to a terminal or a terminal group including the terminal from a base station which belongs to the DAS; and receiving the local midamble from the base station, and the local midamble can be a midamble corresponding to one or more effective transmission antennas associated with the terminal or the terminal group of a plurality of antennas of the base station.
1. A method for receiving, by a user equipment, a reference signal, the method comprising:
receiving first configuration information indicating a configuration of a first channel state information reference signal (CSI-RS) being broadcast;
receiving the first CSI-RS based on the configuration of the first CSI-RS; and
performing channel measurement based on the first CSI-RS,
wherein the configuration of the first CSI-RS is dedicated to the user equipment.
2. The method according to claim 1 , wherein the first configuration information includes a number of antennas associated with the first CSI-RS.
3. The method according to claim 2 , wherein the first CSI-RS is associated with a group of antennas that includes one or more antennas.
4. The method according to claim 3 , wherein the first CSI-RS is received using a pilot pattern allocated to the group of antennas.
5. The method according to claim 1 , further comprising:
receiving second configuration information indicating a configuration of a second CSI-RS, that is associated with channel interference.
6. A method for transmitting, by a base station, a reference signal, the method comprising:
transmitting first configuration information indicating a configuration of a first channel state information reference signal (CSI-RS);
broadcasting the first CSI-RS to a user equipment based on the configuration of the first CSI-RS; and
receiving feedback information according to channel measurement based on the first CSI-RS,
wherein the configuration of the first CSI-RS is dedicated to the user equipment.
7. The method according to claim 6 , wherein the first configuration information includes a number of antennas associated with the first CSI-RS.
8. The method according to claim 7 , wherein the first CSI-RS is associated with a group of antennas that includes one or more antennas.
9. The method according to claim 8 , wherein the first CSI-RS is transmitted using a pilot pattern allocated to the group of antennas.
10. The method according to claim 6 , further comprising:
transmitting second configuration information indicating a configuration of a second CSI-RS, that is associated with channel interference.
11. A user equipment comprising:
a reception module configured to receive first configuration information indicating a configuration of a first channel state information reference signal (CSI-RS) being broadcast; and
a processor configured to control the reception module,
wherein the reception module is further configured to receive the first CSI-RS based on the configuration of the first CSI-RS, and to perform channel measurement based on the first CSI-RS, and
wherein the configuration of the first CSI-RS is dedicated to the user equipment.
12. The user equipment according to claim 11 , wherein the first configuration information includes a number of antennas associated with the first CSI-RS.
13. The user equipment according to claim 12 , wherein the first CSI-RS is associated with a group of antennas that includes one or more antennas.
14. The user equipment according to claim 13 , wherein the processor is configured to control the reception module to receive the first CSI-RS based on a pilot pattern allocated to the group of antennas.
15. The user equipment according to claim 11 , wherein the reception module further receives second configuration information indicating a configuration of a second CSI-RS, that is associated with channel interference.
16. A base station comprising:
a transmission module; and
a processor configured to control the transmission module,
wherein the transmission module is configured to transmit first configuration information indicating a configuration of a first channel state information reference signal (CSI-RS) being broadcast, and to broadcast the first CSI-RS based on the configuration of the first CSI-RS to a user equipment, and
wherein the configuration of the first CSI-RS is dedicated to the user equipment.
17. The base station according to claim 16 , wherein the first configuration information includes a number of antennas associated with the first CSI-RS.
18. The base station according to claim 17 , wherein the first CSI-RS is associated with a group of antennas that includes one or more antennas.
19. The base station according to claim 18 , wherein the processor is further configured to control the transmission module to transmit the first CSI-RS based on a pilot pattern allocated to the group of antennas.
20. The base station according to claim 16 , wherein the processor is further configured to control the transmission module to transmit second configuration information indicating a configuration of a second CSI-RS, that is associated with channel interference.