Method for supporting CoMP in wireless communication system and device therefor
One embodiment of the present invention discloses a method by which a CoMP scheduling device determines a CoMP set in a wireless communication system that supports coordinated multiple-point transmission and reception (CoMP), the method comprising the steps of receiving, from at least one base station, information on a terminal served by the base station; determining a CoMP set on the basis of the received information on the terminal (s); and transmitting identification information of the terminal(s) included in the CoMP set to a base station(s) included in the CoMP set, wherein the information on the terminal can include the identification information of the terminal, capability, quality of service (QoS), a channel state value between the terminal and each base station around the terminal, and/or ePDCCH set configuration information of the terminal.
1. A method, by a coordinated multiple-point (CoMP) scheduling device connected with a plurality of base stations, for determining a CoMP cluster in a wireless communication system supporting CoMP transmission and reception, the method comprising:
receiving, from each of the plurality of base stations, information on a plurality of terminals served by the plurality of base stations;
determining the CoMP cluster based on the received information on the plurality of terminals, wherein the CoMP cluster includes a set of base stations among the plurality of base stations; and
transmitting, to the set of base stations included in the CoMP cluster, identification information of a set of terminals included in the CoMP cluster among the plurality of terminals,
wherein the information on the plurality of terminals includes at least one of the identification information of the set of terminals, capability, quality of service (QoS), a channel state value between the plurality of terminals and each base station neighboring to the plurality of terminals, and enhanced Physical Downlink Control CHannel (ePDCCH) set configuration information of the plurality of terminals.
2. The method according to claim 1 , wherein the transmitting includes transmitting a period for the CoMP, which is allocated to each of the plurality of terminals.
3. The method according to claim 2 , wherein the period indicates a continuous or discontinuous subframe pattern.
4. The method according to claim 1 , wherein the transmitting includes transmitting information on a hybrid automatic retransmission request (HARQ) process of each of the plurality of terminals, which is allocated to each of the set of base stations included in the CoMP cluster.
5. The method according to claim 1 , further comprising receiving load information of the plurality of base stations from each of the plurality of base stations,
wherein the load information includes at least one of a number of terminals connected to each of the plurality of base stations and an amount of data traffic of the connected terminals.
6. A method, by a base station among a plurality of base stations connected with a coordinated multiple-point (CoMP) scheduling device, for enabling the CoMP scheduling device to determine a CoMP cluster in a wireless communication system supporting CoMP transmission and reception, the method comprising:
transmitting, to the CoMP scheduling device, information on at least one terminal served by the base station; and
receiving, from the CoMP scheduling device, identification information of a set of terminals included in the CoMP cluster which is determined based on the information on the at least one terminal, wherein the CoMP cluster includes a set of base stations among the plurality of base stations,
wherein the information on the at least one terminal includes at least one of the identification information of the set of terminals, capability, quality of service (QoS), a channel state value between the at least one terminal and each base station neighboring to the at least one terminal, and/or enhanced Physical Downlink Control CHannel (ePDCCH) set configuration information of the at least one terminal.
7. The method according to claim 6 , wherein the receiving includes receiving information on a period for the CoMP allocated to each of the set of terminals included in the CoMP cluster.
8. The method according to claim 7 , wherein the information on the period includes a continuous or discontinuous subframe pattern indicating the period.
9. The method according to claim 6 , wherein the receiving includes receiving information on a hybrid automatic retransmission request (HARQ) process of each of the set of terminals included in the CoMP cluster.
10. The method according to claim 6 , further comprising:
transmitting, to the CoMP scheduling device, load information of the base station,
wherein the load information includes at least one of a number of the at least one terminal served by the base station and an amount of data traffic of the at least one terminal served by the base station.
11. The method according to claim 6 , further comprising transmitting uplink or downlink related scheduling information for each of the set of terminals included in the CoMP cluster, on the ePDCCH.
12. The method according to claim 11 , if the scheduling information is transmitted on a part of an ePDCCH set of the at least one terminal, further comprising transmitting information on the ePDCCH set, on which the scheduling information is transmitted, to the at least one terminal.
13. A coordinated multiple-point (CoMP) scheduling device, which is connected with a plurality of base stations, configured to determine a CoMP cluster in a wireless communication system supporting CoMP transmission and reception, the CoMP scheduling device comprising:
a transmission and reception unit; and
a processor configured to control the transmission and reception unit,
wherein the processor is configured to:
receive, from each of the plurality of base stations, information on a plurality of terminals served by the plurality of base stations;
determine the CoMP cluster based on the received information on the plurality of terminals, wherein the CoMP cluster includes a set of base stations among the plurality of base stations; and
transmit, to the set of base stations included in the CoMP cluster, identification information of a set of terminals included in the CoMP cluster among the plurality of terminals,
wherein the information on the plurality of terminals includes at least one of the identification information of the set of terminals, capability, quality of service (QoS), a channel state value between the plurality of terminals and each base station neighboring to the plurality of terminals, and enhanced Physical Downlink Control CHannel (ePDCCH) set configuration information of the plurality of terminals.
14. A base station, among a plurality of base stations connected with a coordinated multiple-point (CoMP) scheduling device, configured to enable the CoMP scheduling device to determine a CoMP cluster in a wireless communication system supporting CoMP transmission and reception, the base station comprising:
a transmission and reception unit; and
a processor configured to control the transmission and reception unit,
wherein the processor is configured to:
transmit, to the CoMP scheduling device, information on at least one terminal served by the base station; and
receive, from the CoMP scheduling device, identification information of a set of terminals included in the CoMP cluster which is determined based on the information on the at least one terminal, wherein the CoMP cluster includes a set of base stations among the plurality of base stations,
wherein the information on the at least one terminal includes at least one of the identification information of the set of terminals, capability, quality of service (QoS), a channel state value between the at least one terminal and each base station neighboring to the at least one terminal, and/or enhanced Physical Downlink Control CHannel (ePDCCH) set configuration information of the at least one terminal.