IP Library Granted Patent US 8,441,973
Granted Patent B2
US 8,441,973 · App. 13/029,395 · Granted May 14, 2013

Fast dormancy requests in communication systems

Inventors: Janne Peisa (Espoo, FI); Béla Rathonyi (Lomma, SE); Martin van der Zee (Malmö, SE)
Assignee: Telefonaktiebolaget L M Ericsson (publ)
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Quick Facts
Patent No.
US 8,441,973
App. No.
13/029,395
Granted
May 14, 2013
Kind
B2
Abstract

Methods and apparatus for operating a user equipment (UE) for a wireless communication system. A method includes determining, by the UE, whether the UE is in a battery-efficient state; if the UE is not in a battery-efficient state, configuring the UE to transmitting a signaling connection release indicator with a cause value; if the UE is in the battery-efficient state, determining whether the UE is in a high-mobility state; if the UE is in the high-mobility state and is in the battery-efficient state, enabling the UE to transmit the signaling connection release indicator with a cause value; and if the UE is not in the high-mobility state and is in the battery-efficient state, disabling the UE from transmitting the signaling connection release indicator with a cause value.

Claims (31)

1. A method of operating a user equipment (UE) for a wireless communication system, comprising:

recognizing that further data for a UE signaling connection is not available;

determining, by the UE, whether the UE is in a battery-efficient state;

if the UE is not in the battery-efficient state, enabling the UE to transmit a signaling connection release indicator with a cause value;

if the UE is in the battery-efficient state, determining whether the UE is in a high-mobility state;

if the UE is in the high-mobility state and is in the battery-efficient state, enabling the UE to transmit the signaling connection release indicator with the cause value; and

if the UE is not in the high-mobility state and is in the battery-efficient state, disabling the UE from transmitting the signaling connection release indicator with the cause value.

2. The method of claim 1 , wherein determining whether the UE is in the battery-efficient state is based on a discontinuous reception (DRX) cycle of the UE.

3. The method of claim 2 , wherein determining whether the UE is in the battery-efficient state includes determining whether the DRX cycle in a Connected mode state of the UE is less than a DRX cycle in an Idle mode state of the UE.

4. The method of claim 1 , wherein determining whether the UE is in the high-mobility state includes determining a number of UE cell re-selections during a predetermined time period, and comparing the number with a threshold value.

5. The method of claim 1 , wherein determining whether the UE is in the high-mobility state includes determining a number of UE hand-overs during a predetermined time period, and comparing the number with a threshold value.

6. The method of claim 1 , wherein determining whether the UE is in the high-mobility state includes determining a speed of the UE, and comparing the speed with a threshold value.

7. An apparatus in a user equipment (UE) for a wireless communication system, comprising:

an electronic processor circuit configured for recognizing that further data for a UE signaling connection is not available; for determining whether the UE is in a battery-efficient state; for determining, if the UE is in the battery-efficient state, whether the UE is in a high-mobility state; for enabling, if the UE is not in the battery-efficient state or if the UE is in the high-mobility state and is in the battery-efficient state, the UE to transmit a signaling connection release indicator with a cause value; and for disabling, if the UE is not in the high-mobility state and is in the battery-efficient state, the UE from transmitting the signaling connection release indicator with a cause value.

8. The apparatus of claim 7 , wherein the electronic processor circuit is configured for determining whether the UE is in the battery-efficient state based on a discontinuous reception (DRX) cycle of the UE.

9. The apparatus of claim 8 , wherein the electronic processor circuit is configured for determining whether the UE is in the battery-efficient state by at least determining whether the DRX cycle in a Connected mode state of the UE is less than a DRX cycle in an Idle mode state of the UE.

10. The apparatus of claim 7 , wherein the electronic processor circuit is configured for determining whether the UE is in the high-mobility state by at least determining a number of UE cell re-selections during a predetermined time period, and comparing the number with a threshold value.

11. The apparatus of claim 7 , wherein the electronic processor circuit is configured for determining whether the UE is in the high-mobility state by at least determining a number of UE hand-overs during a predetermined time period, and comparing the number with a threshold value.

12. The apparatus of claim 7 , wherein the electronic processor circuit is configured for determining whether the UE is in the high-mobility state by at least determining a speed of the UE, and comparing the speed with a threshold value.

13. A computer-readable medium have non-transient stored instructions that, when executed by a computer in a user equipment (UE) for a wireless communication system, cause the computer to carry out a method of operating the UE, wherein the method comprises:

recognizing that further data for a UE signaling connection is not available;

determining, by the UE, whether the UE is in a battery-efficient state;

if the UE is not in the battery-efficient state, enabling the UE to transmit a signaling connection release indicator with a cause value;

if the UE is in the battery-efficient state, determining whether the UE is in a high-mobility state;

if the UE is in the high-mobility state and is in the battery-efficient state, enabling the UE to transmit the signaling connection release indicator with the cause value; and

if the UE is not in the high-mobility state and is in the battery-efficient state, disabling the UE from transmitting the signaling connection release indicator with the cause value.

14. The medium of claim 13 , wherein determining whether the UE is in the battery-efficient state is based on a discontinuous reception (DRX) cycle of the UE.

15. The medium of claim 14 , wherein determining whether the UE is in the battery-efficient state includes determining whether the DRX cycle in a Connected mode state of the UE is less than a DRX cycle in an Idle mode state of the UE.

16. The medium of claim 13 , wherein determining whether the UE is in the high-mobility state includes determining a number of UE cell re-selections during a predetermined time period, and comparing the number with a threshold value.

17. The medium of claim 13 , wherein determining whether the UE is in the high-mobility state includes determining a number of UE hand-overs during a predetermined time period, and comparing the number with a threshold value.

18. The medium of claim 13 , wherein determining whether the UE is in the high-mobility state includes determining a speed of the UE, and comparing the speed with a threshold value.

Assignments (6)
RELEASE OF SECURITY INTEREST Recorded Jul 15, 2016
From: HPS INVESTMENT PARTNERS, LLC
To: OPTIS WIRELESS TECHNOLOGY, LLC
Reel/Frame 039361/0001 →
SECURITY INTEREST Recorded Mar 12, 2014
From: OPTIS WIRELESS TECHNOLOGY, LLC
To: WILMINGTON TRUST, NATIONAL ASSOCIATION
Reel/Frame 032437/0638 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 19, 2014
From: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
To: CLUSTER, LLC
Reel/Frame 032285/0421 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 19, 2014
From: CLUSTER, LLC
To: OPTIS WIRELESS TECHNOLOGY, LLC
Reel/Frame 032286/0501 →
LIEN Recorded Jan 24, 2014
From: OPTIS WIRELESS TECHNOLOGY, LLC
To: HIGHBRIDGE PRINCIPAL STRATEGIES, LLC, AS COLLATERAL AGENT
Reel/Frame 032180/0115 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 27, 2011
From: RATHONYI, BELA; VAN DER ZEE, MARTIN; PEISA, JANNE; OY L M ERICSSON AB
To: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
Reel/Frame 026355/0016 →
Continuity (2)
Provisional Application 61305313 · Feb 17, 2010
Related Publication 20110222451A1 · Sep 15, 2011