IP Library Granted Patent US 9,420,552
Granted Patent B2
US 9,420,552 · App. 14/258,829 · Granted Aug 16, 2016

Apparatus and method for channel measurement in radio link monitoring in a wireless network

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Quick Facts
Patent No.
US 9,420,552
App. No.
14/258,829
Granted
Aug 16, 2016
Kind
B2
Abstract

A subscriber station is configured to perform a channel measurement on a communication channel in restricted sub-frames for DRX and NON-DRX modes. The subscriber station includes a receiver configured to receive signals from a base station. The subscriber station also includes processing circuitry. When the receiver receives higher layer signaling indicating that channel quality measurement is to be performed in restricted sub-frames for measurement (RFSM), the processing circuitry is configured to extend an evaluation period for monitoring a quality of the communication channel.

Claims (23)

1. A method of evaluating synchronization between an evolved Node B (eNB) and a User Equipment (UE) in the UE, the method comprising:

identifying a discontinuous reception (DRX) cycle;

receiving a higher layer signaling indicating a resource for restricted radio link monitoring from the eNB;

determining an evaluation period based on the DRX cycle and the higher layer signaling; and

evaluating the synchronization based on the determined evaluation period.

2. The method of claim 1 , wherein the evaluation period is an integer multiple of the DRX cycle.

3. The method of claim 1 , wherein the evaluation period is determined based on a pre-determined relation between the evaluation period and the DRX cycle.

4. The method of claim 1 , wherein a first evaluation period corresponding to a first DRX cycle is an integer multiple of a second evaluation period corresponding to a second DRX cycle.

5. A User Equipment (UE) configured to evaluate synchronization between an evolved Node B (eNB) and the UE, the UE comprising:

a signal input configured to receive a higher layer signaling indicating a resource for restricted radio link monitoring from the eNB; and

a processor configured to

identify a discontinuous reception (DRX) cycle,

determine an evaluation period based on the DRX cycle and the higher layer signaling, and

evaluate the synchronization based on the determined evaluation period.

6. The UE of claim 5 , wherein the evaluation period is an integer multiple of the DRX cycle.

7. The UE of claim 5 , wherein the evaluation period is determined based on a pre-determined relation between the evaluation period and the DRX cycle.

8. The UE of claim 5 , wherein a first evaluation period corresponding to a first DRX cycle is an integer multiple of a second evaluation period corresponding to a second DRX cycle.

9. An evolved Node B (eNB) configured to facilitate evaluation of synchronization between a User Equipment (UE) and eNB, the eNB comprising:

a transceiver configured to transmit a resource for restricted radio link monitoring specified by higher layer signaling to the UE, wherein the UE is configured to determine an evaluation period based on an identified discontinuous reception (DRX) cycle and the resource for restricted radio link monitoring and to evaluate the synchronization based on the determined evaluation period; and

a processor configured to control communication between the eNB and the UE during the evaluation period.

10. The eNB of claim 9 , wherein the evaluation period is an integer multiple of the DRX cycle.

11. The eNB of claim 9 , wherein the evaluation period is determined based on a pre-determined relation between the evaluation period and the DRX cycle.

12. The eNB of claim 9 , wherein a first evaluation period corresponding to a first DRX cycle is an integer multiple of a second evaluation period corresponding to a second DRX cycle.

Assignments (2)
ASSIGNMENT AND ASSUMPTION OF SECURITY INTEREST IN PATENTS Recorded Jan 5, 2016
From: CITIBANK, N.A.
To: MORGAN STANLEY SENIOR FUNDING, INC.
Reel/Frame 037444/0082 →
ASSIGNMENT AND ASSUMPTION OF SECURITY INTEREST IN PATENTS Recorded Jan 5, 2016
From: CITIBANK, N.A.
To: MORGAN STANLEY SENIOR FUNDING, INC.
Reel/Frame 037444/0109 →