METHOD FOR SUPPORTING COORDINATED MULTI-POINT TRANSMISSION AND RECEPTION SCHEME IN WIRELESS COMMUNICATION SYSTEM AND DEVICE FOR THE SAME

• US 20150327287A1
• Filed: 09/03/2013
• Published: 11/12/2015
• Est. Priority Date: 01/22/2013
• Status: Abandoned Application

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: KIM, Kijun, KIM, Eunsun
• Application Number:
  US14/761,216
• Publication Number:
  US 20150327287A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04B 17/309 Measuring or estimating channel quality parameters
• CPC Class Codes: H04B 7/024 Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
• CPC Class Codes: H04W 72/121 for groups of terminals or users

Abstract

According to one embodiment of the present invention, a method by which a coordinated multi-point transmission and reception (CoMP) scheduling device supports communication of a CoMP cluster in a wireless communication system supporting CoMP can comprise the steps of: receiving channel state information (CSI) measured by at least one terminal served by at least one base station in the CoMP cluster; selecting terminal(s) to be served as a CoMP operation on the basis of the received CSI measured by the at least one terminal and determining scheduling information for the selected terminal(s); and transmitting the scheduling information for the selected terminal(s) to at least one base station for serving the CoMP operation of the selected terminal(s).

Claims

1. A method for supporting communication of a coordinated multi-point transmission and reception (CoMP) cluster by a CoMP scheduling device in a wireless communication system supporting CoMP, the method comprising:

receiving channel state information (CSI) measured by at least one terminal served by at least one base station in the CoMP cluster;

selecting one or more terminals to be served through a CoMP operation based on the received CSI measured by the at least one terminal and determining scheduling information for the selected terminals; and

transmitting the scheduling information for the selected terminals to at least one base station for serving the CoMP operation of the selected terminals.

2. The method according to claim 1, wherein the scheduling information for the selected terminals includes at least one of identifiers of the selected terminals, modulation and coding scheme (MCS) and a precoding matrix indicator (PMI) allocated to the selected terminals.

3. The method according to claim 1, wherein the scheduling information for the selected terminals includes at least one of the identifiers of the selected terminals, information about resource block and PMIs allocated to the selected terminals.

4. The method according to claim 1, wherein the at least one base station transmits downlink data to the selected terminals based on the scheduling information for the selected terminals, and only one base station from among the at least one base station transmits downlink data to one of the selected terminals at a specific timing.

5. The method according to claim 4, further comprising acquiring feedback information about reception of the downlink data from the selected terminals.

6. The method according to claim 1, wherein the CoMP scheduling device is a base station in the CoMP cluster.

7. The method according to claim 1, further comprising transmitting a specific TCP/IP packet for the selected terminals to at least one base station in the CoMP cluster prior to the determining of the scheduling information.

8. The method according to claim 7, further comprising generating a transport block based on the scheduling information.

9. A method for performing communication of a CoMP cluster by a base station in the CoMP cluster in a wireless communication system supporting CoMP, the method comprising:

transmitting CSI, measured by at least one terminal served by the base station, to a scheduling device; and

receiving, from the scheduling device, scheduling information for one or more terminals to be served through a CoMP operation selected based on the CSI measured by the at least one terminal.

10. The method according to claim 9, wherein the scheduling information for the selected terminals includes at least one of identifiers of the selected terminals, modulation and coding scheme (MCS) and a precoding matrix indicator (PMI) allocated to the selected terminals.

11. The method according to claim 9, wherein the scheduling information for the selected terminals includes at least one of the identifiers of the selected terminals, information about resource block and PMI allocated to the selected terminals.

12. The method according to claim 11, further comprising selecting an MCS for the selected terminals.

13. The method according to claim 9, further comprising transmitting downlink data to the selected terminals based on the scheduling information for the selected terminals,

wherein the base station is a unique base station transmitting downlink data to one of the selected terminals at a specific timing.

14. The method according to claim 13, further comprising acquiring feedback information about reception of the downlink data from the selected terminals.

15. The method according to claim 9, further comprising receiving a specific TPC/IP packet for the selected terminals from the scheduling device prior to transmitting CSI.

16. The method according to claim 15, further comprising generating a transport block based on the scheduling information and segmenting a code block according to a size of the generated transport block.