Method and apparatus for measurement for inter-cell interference coordination in radio communication system

• US 9,788,316 B2
• Filed: 11/23/2015
• Issued: 10/10/2017
• Est. Priority Date: 03/29/2010
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Seo, Inkwon, Seo, Hanbyul, Kim, Byounghoon, Kim, Kijun, Kim, Hakseong
• Primary Examiner(s): Puente, Eva
• Application Number:
  US14/949,157
• Publication Number:
  US 20160119907A1
• Time in Patent Office: 687 Days
• Field of Search: 375260, 370281, 370329, 370315, 370311
• CPC Class Codes: H04J 11/0056 Inter-base station aspects
• CPC Class Codes: H04J 13/0062 Zadoff-Chu
• CPC Class Codes: H04L 5/0023 Time-frequency-space
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0073 Allocation arrangements that take into account other cell interferences for intercell interference mitigation or co-ordination in orthogonal multiplex systems H04J11/005
• CPC Class Codes: H04L 5/0091 Signaling for the administration of the divided path
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements
• CPC Class Codes: H04W 24/08 Testing, supervising or monitoring using real traffic
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 28/04 Error control
• CPC Class Codes: H04W 48/16 Discovering, processing access restriction or access information
• CPC Class Codes: H04W 72/044 based on the type of the allocated resource
• CPC Class Codes: H04W 92/20 between access points

Abstract

A user equipment, base station and method for performing a measurement in a wireless communication system are discussed. The method according to one embodiment includes receiving, from a first base station, information indicating a resource region for performing the measurement; performing the measurement for the resource region; and transmitting, to the first base station, a report for the measurement. The resource region is determined as a combination of at least one orthogonal frequency division multiplexing (OFDM) symbol and at least one downlink subframe.

Claims

1. A method for performing a measurement by a user equipment (UE) in a wireless communication system, the method comprising:

receiving, from a first base station, information indicating a resource region for performing the measurement;

performing the measurement over the resource region; and

transmitting, to the first base station, a report for the measurement,

wherein the resource region is determined as a combination of at least one orthogonal frequency division multiplexing (OFDM) symbol and at least one downlink subframe, and

wherein the resource region is determined by the first base station based on information indicating at least one subframe configured as an almost blank subframe (ABS) by a second base station.

2. The method according to claim 1, wherein the measurement is performed over all OFDM symbols in the at least one downlink subframe.

3. The method according to claim 1, wherein the information is received through radio resource control (RRC) signaling.

4. The method according to claim 1, wherein the information indicating the at least one subframe configured as the ABS is received by the first base station from the second base station.

5. The method according to claim 1, wherein the measurement is for reference signal received quality (RSRQ), and the RSRQ is measured by reference signal received power (RSRP) and a received signal strength indicator (RSSI).

6. A method for supporting a measurement of a user equipment (UE) by a first base station in a wireless communication system, the method comprising:

receiving, from a second base station, downlink subframe configuration information indicating at least one subframe configured as an almost blank subframe (ABS) by the second base station;

transmitting, to the UE, information indicating a resource region for performing the measurement, determined based on the downlink subframe configuration information; and

receiving, from the UE, a report for the measurement performed over the resource region,

wherein the resource region is determined as a combination of at least one orthogonal frequency division multiplexing (OFDM) symbol and at least one downlink subframe.

7. The method according to claim 6, wherein the measurement is performed over all OFDM symbols in the at least one downlink subframe.

8. The method according to claim 6, wherein the information indicating the resource region is transmitted through radio resource control (RRC) signaling.

9. The method according to claim 6, wherein the measurement is for reference signal received quality (RSRQ), and the RSRQ is measured by reference signal received power (RSRP) and a received signal strength indicator (RSSI).

10. A user equipment (UE) for performing a measurement, the UE comprising:

a reception module;

a transmission module; and

a processor configured to;

receive, from a first base station, information indicating a resource region for performing the measurement, through the reception module,

perform the measurement over the resource region, and

transmit, to the first base station, a report for the measurement, through the transmission module,

wherein the resource region is determined as a combination of at least one orthogonal frequency division multiplexing (OFDM) symbol and at least one downlink subframe, and

wherein the resource region is determined by the first base station based on information indicating at least one subframe configured as an almost blank subframe (ABS) by a second base station.

11. A first base station for supporting a measurement of a user equipment (UE), the first base station comprising:

a reception module;

a transmission module; and

a processor configured to;

receive, from a second base station, downlink subframe configuration information indicating at least one subframe configured as an almost blank subframe (ABS) by the second base station, through the reception module,

transmit, to the UE, information indicating a resource region for performing the measurement, determined based on the downlink subframe configuration information, through the transmission module, and

receive, from the UE, a report for the measurement performed over the resource region, through the reception module,

wherein the resource region is determined as a combination of at least one orthogonal frequency division multiplexing (OFDM) symbol and at least one downlink subframe.