IP Library Granted Patent US 9,167,469
Granted Patent B2
US 9,167,469 · App. 14/280,109 · Granted Oct 20, 2015

Coordinated multipoint (CoMP) radio resource management (RRM) measurement

Inventor: Shohei Yamada (Camas, WA)
Assignee: Sharp Laboratories of America, Inc.
H04W24/10H04B7/024H04L5/0091H04W24/00H04L5/001
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Quick Facts
Patent No.
US 9,167,469
App. No.
14/280,109
Granted
Oct 20, 2015
Kind
B2
Abstract

A method performed by a user equipment (UE) is described. A measurement configuration is received from an evolved NodeB (eNB). The measurement configuration comprises a measurement object in a carrier frequency and the measurement object comprises a set of channel state information reference signal (CSI-RS) configurations. A measurement is performed based on a cell-specific reference signal (CRS). A measurement is performed based on a channel state information reference signal (CSI-RS) based on the measurement configuration. A measurement report is generated in a radio resource control (RRC) layer. The measurement report is sent to the eNB.

Claims (34)

1. A method performed by a user equipment (UE), comprising:

receiving a measurement configuration from an evolved Node B (eNB), wherein the measurement configuration comprises a measurement object in a carrier frequency and the measurement object comprises a set of channel state information reference signal (CSI-RS) configurations;

performing a measurement based on a cell-specific reference signal (CRS);

performing a measurement based on a channel state information reference signal (CSI-RS) based on the measurement configuration;

generating a measurement report in a radio resource control (RRC) layer; and

sending the measurement report to the eNB.

2. The method of claim 1 , wherein the measurement configuration comprises a measurement object, and wherein the measurement object comprises an information element configured to perform at least one of adding a CSI-RS configuration to the set of CSI-RS configurations, modifying a CSI-RS configuration of the set of CSI-RS configurations and removing a CSI-RS configuration from the set of CSI-RS configurations.

3. The method of claim 1 , wherein the measurement configuration comprises multiple measurement objects.

4. A method performed by an evolved Node B (eNB), comprising:

generating a measurement configuration for a user equipment (UE), wherein the measurement configuration comprises a measurement object in a carrier frequency and the measurement object comprises a set of channel state information reference signal (CSI-RS) configurations;

sending the measurement configuration to the UE; and

receiving, from the UE, the measurement report generated based on a measurement based on a channel state information reference signal (CSI-RS) based on the measurement configuration.

5. The method of claim 4 , wherein the measurement configuration comprises a measurement object, and wherein the measurement object comprises an information element configured to perform at least one of adding a CSI-RS configuration to the set of CSI-RS configurations, modifying a CSI-RS configuration of the set of CSI-RS configurations and removing a CSI-RS configuration from the set of CSI-RS configurations.

6. The method of claim 4 , wherein the measurement configuration comprises multiple measurement objects.

7. A user equipment (UE) comprising:

a processor;

memory in electronic communication with the processor;

instructions stored in the memory, the instructions being executable to:

receive a measurement configuration from an evolved Node B (eNB), wherein the measurement configuration comprises a measurement object in a carrier frequency and the measurement object comprises a set of channel state information reference signal (CSI-RS) configurations;

perform a measurement based on a cell-specific reference signal (CRS);

perform a measurement based on a channel state information reference signal (CSI-RS) based on the measurement configuration;

generate a measurement report in a radio resource control (RRC) layer; and

send the measurement report to the eNB.

8. The UE of claim 7 , wherein the measurement configuration comprises a measurement object, and wherein the measurement object comprises an information element configured to perform at least one of adding a CSI-RS configuration to the set of CSI-RS configurations, modifying a CSI-RS configuration of the set of CSI-RS configurations and removing a CSI-RS configuration from the set of CSI-RS configurations.

9. The UE of claim 7 , wherein the measurement configuration comprises multiple measurement objects.

10. An evolved NodeB (eNB) comprising:

a processor;

memory in electronic communication with the processor;

instructions stored in the memory, the instructions being executable to:

generate a measurement configuration for a user equipment (UE), wherein the measurement configuration comprises a measurement object in a carrier frequency and the measurement object comprises a set of channel state information reference signal (CSI-RS) configurations;

send the measurement configuration to the UE; and

receive, from the UE, the measurement report generated based on a measurement based on a channel state information reference signal (CSI-RS) based on the measurement configuration.

11. The eNB of claim 10 , wherein the measurement configuration comprises a measurement object, and wherein the measurement object comprises an information element configured to perform at least one of adding a CSI-RS configuration to the set of CSI-RS configurations, modifying a CSI-RS configuration of the set of CSI-RS configurations and removing a CSI-RS configuration from the set of CSI-RS configurations.

12. The eNB of claim 10 , wherein the measurement configuration comprises multiple measurement objects.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 19, 2016
From: SHARP LABORATORIES OF AMERICA, INC.
To: SHARP KABUSHIKI KAISHA
Reel/Frame 037524/0602 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 2, 2014
From: YAMADA, SHOHEI
To: SHARP LABORATORIES OF AMERICA, INC.
Reel/Frame 033005/0225 →
Continuity (2)
Continuation 13433218 · Mar 28, 2012
Related Publication 20140247741A1 · Sep 4, 2014