IP Library Granted Patent US 9,144,010
Granted Patent B2
US 9,144,010 · App. 13/421,526 · Granted Sep 22, 2015

Method and system for small cell discovery in heterogeneous cellular networks

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Quick Facts
Patent No.
US 9,144,010
App. No.
13/421,526
Granted
Sep 22, 2015
Kind
B2
Abstract

A method and user equipment in a network having a macro cell and at least one small cell, the method receiving, from a network element, a plurality of small cell measurement configurations and at least one condition for utilizing each of the plurality of small cell measurement configurations; determining whether a condition is satisfied for one of the plurality of small cell measurement configurations; and configuring small cell measurement on the user equipment based on the one of the plurality of small cell measurement configurations for which the condition is satisfied. Further, a method at the network element, the method sending, from the network element to at least one user equipment, a plurality of small cell measurement configurations and at least one condition for utilizing each of the plurality of small cell measurement configurations.

Claims (33)

1. A method at a user equipment in a network having a macro cell and at least one small cell, the method comprising:

receiving, from a network element, a plurality of small cell measurement configurations and at least one condition for utilizing each of the plurality of small cell measurement configurations, each small cell measurement configuration including at least one parameter for configuring small cell measurement at the user equipment;

determining whether a condition is satisfied for one of the plurality of small cell measurement configurations; and

configuring small cell measurement on the user equipment based on the one of the plurality of small cell measurement configurations for which the condition is satisfied, wherein the configuring small cell measurements includes configuring at least one of a length of a small cell measurement period and a threshold value.

2. The method of claim 1 , wherein the conditions are stored at the user equipment.

3. The method of claim 2 , wherein the conditions include an always true condition to force use of a measurement configuration.

4. The method of claim 2 , wherein the conditions include an option for the user equipment to decide whether to activate the condition.

5. The method of claim 2 , wherein the receiving the conditions comprises a bit value corresponding with a stored value on the user equipment.

6. The method of claim 1 , further comprising, after the configuring, sending a message to the network element indicating the configuring of the measurement configuration.

7. The method of claim 1 , wherein the at least one condition is received on a Third Generation Partnership Project MeasIdToAddModList Information Element.

8. A non-transitory computer-readable storage medium storing instructions that when executed by at least one processor cause the performance of operations comprising the method of claim 1 .

9. A user equipment configured to operate in a network having a macro cell and at least one small cell, the user equipment comprising:

a processor; and

a communication subsystem,

wherein the processor and communication subsystem are configured to:

receive, from a network element, a plurality of small cell measurement configurations and at least one condition for utilizing each of the plurality of small cell measurement configurations, each small cell measurement configuration including at least one parameter for configuring small cell measurement at the user equipment;

determine whether a condition is satisfied for one of the plurality of small cell measurement configurations; and

configure small cell measurement on the user equipment based on the one of the plurality of small cell measurement configurations for which the condition is satisfied, wherein the configuring small cell measurements includes configuring at least one of a length of a small cell measurement period and a threshold value.

10. The user equipment of claim 9 , wherein the conditions are stored at the user equipment.

11. The user equipment of claim 10 , wherein the conditions include an always true condition to force use of a measurement configuration.

12. The user equipment of claim 10 , wherein the conditions include an option for the user equipment to decide whether to activate the condition.

13. The user equipment of claim 10 , wherein the receiving the conditions comprises a bit value corresponding with a stored value on the user equipment.

14. The user equipment of claim 9 , wherein the processor and communications subsystem are further configured to send a message to the network element indicating the configuring of the measurement configuration after the configuring.

15. The user equipment of claim 9 , wherein the at least one condition is received on a Third Generation Partnership Project MeasIdToAddModList Information Element.

16. A method at a network element in a network having a macro cell and at least one small cell, the method comprising:

sending, from the network element to at least one user equipment, a plurality of small cell measurement configurations and at least one condition for utilizing each of the plurality of small cell measurement configurations, each small cell measurement configuration including at least one parameter for configuring small cell measurement at the at least one user equipment, wherein a parameter for at least one of the plurality of small cell measurement configurations includes at least one of a length of a small cell measurement period and a threshold offset value.

17. The method of claim 16 , wherein the conditions are associated with a bit code.

18. The method of claim 16 , wherein the conditions include an always true condition to force use of a measurement configuration.

19. The method of claim 16 , wherein the conditions include an option for the user equipment to decide whether to activate the condition.

20. The method of claim 16 , wherein the sending the conditions comprises a bit value corresponding with a stored value on the user equipment.

21. The method of claim 16 , further comprising receiving a message to the network element indicating the configuring of the measurement configuration.

22. The method of claim 16 , wherein the at least one condition is sent on a Third Generation Partnership Project MeasIdToAddModList Information Element.

23. A non-transitory computer-readable storage medium storing instructions that when executed by at least one processor cause the performance of operations comprising the method of claim 16 .

Assignments (10)
CORRECTIVE ASSIGNMENT TO CORRECT THE ADDED PATENT NUMBER TO REMOVE PATENT NO. 8,873,407 AT PREVIOUSLY RECORDED ON REEL 64066 FRAME 1. ASSIGNOR(S) HEREBY CONFIRMS THE NUNC PRO TUNC ASSIGNMENT EFFECTIVE DATE MARCH 20, 2023. Recorded Feb 2, 2026
From: BLACKBERRY LIMITED
To: MALIKIE INNOVATIONS LIMITED
Reel/Frame 074921/0001 →
CORRECTIVE ASSIGNMENT TO CORRECT 12817157 APPLICATION NUMBER PREVIOUSLY RECORDED AT REEL: 064015 FRAME: 0001. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Sep 5, 2023
From: OT PATENT ESCROW, LLC
To: MALIKIE INNOVATIONS LIMITED
Reel/Frame 064807/0001 →
CORRECTIVE ASSIGNMENT TO CORRECT THE COVER SHEET AT PAGE 50 TO REMOVE 12817157 PREVIOUSLY RECORDED ON REEL 063471 FRAME 0474. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Sep 5, 2023
From: BLACKBERRY LIMITED
To: OT PATENT ESCROW, LLC
Reel/Frame 064806/0669 →
NUNC PRO TUNC ASSIGNMENT Recorded Jun 19, 2023
From: BLACKBERRY LIMITED
To: MALIKIE INNOVATIONS LIMITED
Reel/Frame 064066/0001 →
NUNC PRO TUNC ASSIGNMENT Recorded Jun 16, 2023
From: OT PATENT ESCROW, LLC
To: MALIKIE INNOVATIONS LIMITED
Reel/Frame 064015/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 27, 2023
From: BLACKBERRY LIMITED
To: OT PATENT ESCROW, LLC
Reel/Frame 063471/0474 →
CHANGE OF NAME Recorded Jun 1, 2015
From: RESEARCH IN MOTION LIMITED
To: BLACKBERRY LIMITED
Reel/Frame 035805/0534 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 5, 2012
From: RESEARCH IN MOTION CORPORATION
To: RESEARCH IN MOTION LIMITED
Reel/Frame 028914/0482 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 1, 2012
From: BONTU, CHANDRA SEKHAR
To: RESEARCH IN MOTION LIMITED
Reel/Frame 028302/0386 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 1, 2012
From: CAI, ZHIJUN; SONG, YI
To: RESEARCH IN MOTION CORPORATION
Reel/Frame 028302/0263 →