IP Library Granted Patent US 8,688,121
Granted Patent B2
US 8,688,121 · App. 13/097,793 · Granted Apr 1, 2014

UE handling of common configuration after handover

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Quick Facts
Patent No.
US 8,688,121
App. No.
13/097,793
Granted
Apr 1, 2014
Kind
B2
Abstract

A method for a user equipment (UE) operating in a Long Term Evolution network. The method includes the UE receiving a command for a handover from a source cell to a target cell. The method further includes, when the UE has valid stored system information for the target cell, the UE discarding a dedicated radioResourceConfigCommon information element received from the source cell in the handover command and the UE applying radio resource configuration information retrieved from the stored system information.

Claims (19)

1. A method for a user equipment (UE) operating in a Long Term Evolution network, comprising:

the UE receiving a command for a handover from a source cell to a target cell; and

when the UE has valid stored system information for the target cell, the UE discarding a dedicated radioResourceConfigCommon information element received from the source cell in the handover command and the UE applying radio resource configuration information retrieved from the stored system information.

2. The method of claim 1 , wherein the radio resource configuration information includes common configuration including common radioResourceConfigCommon retrieved from the stored system information.

3. The method of claim 1 , wherein the UE discards the dedicated radioResourceConfigCommon information element and applies the radio resource configuration information retrieved from the stored system information after accessing the target cell.

4. The method of claim 1 , wherein the UE discards the dedicated radioResourceConfigCommon information element and applies the radio resource configuration information retrieved from the stored system information before accessing the target cell.

5. A user equipment (UE), comprising:

a processor configured such that the UE receives a command for a handover from a source cell to a target cell and, when the UE has valid stored system information for the target cell, the UE discards a dedicated radioResourceConfigCommon information element received from the source cell in the handover command, and the UE applies radio resource configuration information retrieved from the stored system information.

6. The UE of claim 5 , wherein the radio resource configuration information includes common configuration including common radioResourceConfigCommon retrieved from the stored system information.

7. The UE of claim 5 , wherein the UE discards the dedicated radioResourceConfigCommon information element and applies the radio resource configuration information retrieved from the stored system information after accessing the target cell.

8. The UE of claim 5 , wherein the UE discards the dedicated radioResourceConfigCommon information element and applies the radio resource configuration information retrieved from the stored system information before accessing the target cell.

9. A method for a user equipment (UE) operating in a Long Term Evolution network, comprising:

the UE receiving a command for a handover from a source cell to a target cell;

the UE discarding a dedicated radioResourceConfigCommon information element received from the source cell in the handover command; and

the UE overwriting information elements of dedicated system information with corresponding information elements of stored valid system information.

10. The method of claim 9 , wherein the UE uses the stored valid system information when the UE determines from a first set of system information that the UE has already stored a valid second set of system information.

11. The method of claim 9 , wherein the stored valid system information includes radio resource configuration information that includes common configuration including common radioResourceConfigCommon.

12. The method of claim 9 , wherein the UE overwrites the previously received dedicated system information after accessing the target cell.

13. The method of claim 9 , wherein the UE overwrites the previously received dedicated system information before accessing the target cell.

Assignments (3)
CHANGE OF NAME Recorded Jan 22, 2014
From: RESEARCH IN MOTION LIMITED
To: BLACKBERRY LIMITED
Reel/Frame 032113/0594 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 12, 2011
From: RESEARCH IN MOTION UK LIMITED
To: RESEARCH IN MOTION LIMITED
Reel/Frame 026430/0384 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 16, 2011
From: MCGILLY, PAUL
To: RESEARCH IN MOTION UK LIMITED
Reel/Frame 026281/0142 →