TRANSMITTING CONFIGURATION INFORMATION OF INTERFERENCE MEASUREMENT RESOURCE, AND MEASURING INTERFERENCE

• US 20140073336A1
• Filed: 09/04/2013
• Published: 03/13/2014
• Est. Priority Date: 09/07/2012
• Status: Active Grant

• Current Assignee: Google Inc. (Alphabet Inc.)
• Original Assignee: KT Corporation
• Inventors: KANG, Seung Hyun
• Granted Patent: US 9,137,810 B2
• Time in Patent Office: Days
• US Class Current: 455/452.1
• CPC Class Codes: H04L 5/0035 Resource allocation in a cooperative multipoint environment
• CPC Class Codes: H04L 5/005 of common pilots, i.e. pilots destined for multiple users or terminals
• CPC Class Codes: H04W 72/00 Local resource management
• CPC Class Codes: H04W 72/541 using the level of interference

Abstract

The disclosure is related to transmitting configuration information of interference measurement resources (IMRs) and measuring interference in a downlink CoMP environment.

Claims

1. A method of transmitting interference measurement resource (IMR) configuration information in a transmission point, the method comprising:

determining the IMR configuration information for a downlink interference measurement of user equipment (UE); and

transmitting the IMR configuration information to the user equipment, wherein the IMR configuration information is identified based on an interference measurement resource index indicating the IMR configuration information.

2. The method of claim 1, wherein the IMR configuration information includes resource configuration information and subframe configuration information.

3. The method of claim 2, wherein the resource configuration information includes configuration information associated with four resource elements in one physical resource block (PRB) pair.

4. The method of claim 1, wherein the transmitting the IMR configuration information to the user equipment includes:

transmitting the IMR configuration information to the user equipment through a UE-specific RRC message.

5. A method of measuring interference in user equipment (UE), the method comprising:

receiving interference measurement resource (IMR) configuration information from a transmission point, wherein the IMR configuration information is identified based on an interference measurement resource index, and the interference measurement resource index indicates the IMR configuration information for a downlink interference measurement of the user equipment; and

performing an interference measurement according to the received IMR configuration information.

6. The method of claim 5, wherein the IMR configuration information includes resource configuration information and subframe configuration information.

7. The method of claim 6, wherein the resource configuration information includes configuration information associated with four resource elements in one physical resource block (PRB) pair.

8. The method of claim 5, wherein the receiving the IMR configuration information from the transmission point includes:

receiving the IMR configuration information from the transmission point through a UE-specific RRC message.

9. A transmission point comprising:

a control processor configured to determine interference measurement resource (IMR) configuration information for a downlink interference measurement of user equipment; and

a transmitter configured to transmit the IMR configuration information to the user equipment, wherein the IMR configuration information is identified based on an interference measurement resource index indicating the IMR configuration information.

10. The transmission point of claim 9, wherein the IMR configuration information includes resource configuration information and subframe configuration information.

11. The transmission point of claim 10, wherein the resource configuration information includes configuration information associated with four resource elements in one physical resource block (PRB) pair.

12. The transmission point of claim 9, wherein the transmitter is configured to transmit the IMR configuration information to the user equipment through a UE-specific RRC message.

13. User equipment comprising:

a receiver configured to receive interference measurement resource (IMR) configuration information from a transmission point, wherein the IMR configuration information is identified based on an interference measurement resource index, and the interference measurement resource index indicates the IMR configuration information for a downlink interference measurement of the user equipment; and

a control processor configured to perform an interference measurement according to the received IMR configuration information.

14. The user equipment of claim 13, wherein the IMR configuration information includes resource configuration information and subframe configuration information.

15. The user equipment of claim 14, wherein the resource configuration information includes configuration information associated with four resource elements in one physical resource block (PRB) pair.

16. The user equipment of claim 13, wherein the receiver is configured to receive the IMR configuration information from the transmission point through a UE-specific RRC message.