IP Library Granted Patent US 9,455,843
Granted Patent B2
US 9,455,843 · App. 13/580,614 · Granted Sep 27, 2016

Method and apparatus for emergency call handling

Inventors: Ilkka Yli-Tuomi (Oulu, FI); Jarkko Koskela (Oulu, FI); Pasi Laitinen (Oulunsalo, FI); Juha Kinnunen (Oulu, FI)
Assignee: Nokia Technologies Oy
H04L12/6418H04W4/22H04W76/007H04W48/20
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Quick Facts
Patent No.
US 9,455,843
App. No.
13/580,614
Granted
Sep 27, 2016
Kind
B2
Abstract

Methods, apparatus and computer program products are provided in order to facilitate improved emergency call handling procedures and, in particular, to provide improved emergency call handling procedures relative to a connection re-establishment procedure. Emergency calls may therefore be handled in an efficient and expeditious fashion, even in instances in which a connection re-establishment procedure is ongoing at the time of the initiation of the emergency call or in instances in which a connection re-establishment procedure is commenced during an emergency call.

Claims (21)

1. A method comprising:

receiving, at a user equipment, an indication that an emergency call is to be initiated during a connection re-establishment procedure with a base station, wherein the receiving includes receiving an indication that an emergency call is to be initiated during an ongoing connection with the base station;

terminating, at the user equipment, the connection re-establishment procedure with the base station in response to the indication that the emergency call is to be initiated and without awaiting expiration of a cell selection timer, wherein the terminating includes terminating the ongoing connection with the base station occurs without signaling a network;

establishing, at the user equipment, another connection to support the emergency call, wherein a cell selected to support the emergency call is not suitable to support a connection sought to be re-established; and

utilizing a shorter cell selection timer for a connection re-establishment procedure during an ongoing emergency call than in an instance in which an emergency call is not ongoing.

2. The method according to claim 1 , wherein the terminating, at the user equipment, the ongoing connection or the connection re-establishment procedure with the base station comprises moving to an idle state.

3. The method according to claim 1 , further comprising: releasing, at the user equipment, the another connection upon termination of the emergency call.

4. An apparatus comprising at least one processor and at least one memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to at least:

receive an indication that an emergency call is to be initiated during a connection re-establishment procedure with a base station, wherein receipt of an indication that an emergency call is to be initialed includes receiving an indication that an emergency call is to be initiated during an ongoing connection with the base station;

terminate the connection re-establishment procedure with the base station in response to the indication that the emergency call is to be initiated and without awaiting expiration of a cell selection timer, wherein termination of the connection includes terminating the ongoing connection with the base station occurs without signaling a network;

establish another connection to support the emergency call, wherein a cell selected to support the emergency call is not suitable to support a connection sought to be re-established; and

utilize a shorter cell selection timer for a connection re-establishment procedure during an ongoing emergency call than in an instance in which emergency call is not ongoing.

5. The apparatus of claim 4 , wherein the terminating the ongoing connection or the connection re-establishment procedure with the base station comprises moving to an idle state.

6. The apparatus of claim 4 , wherein the at least one memory and the computer program code are further configured to, with the at least one processor, cause the apparatus to at least release the other connection upon termination of the emergency call.

7. A non-transitory computer-readable medium including computer program code which when executed causes operations comprising:

receiving, at a user equipment, an indication that an emergency call is to be initiated during a connection re-establishment procedure with a base station, wherein the receiving includes receiving an indication that an emergency call is to be initiated during an ongoing connection with the base station;

terminating, at the user equipment, the connection re-establishment procedure with the base station in response to the indication that the emergency call is to be initiated and without awaiting expiration of a cell selection timer, wherein the terminating includes terminating the ongoing connection with the base station occurs without signaling a network;

establishing, at the user equipment, another connection to support the emergency call, wherein a cell selected to support the emergency call is not suitable to support a connection sought to be re-established; and

utilizing a shorter cell selection timer for a connection re-establishment procedure during an ongoing emergency call than in an instance in which an emergency call is not ongoing.

8. The non-transitory computer-readable medium according to claim 7 , wherein the terminating, at the user equipment, the ongoing connection or the connection re-establishment procedure with the base station comprises computer program code for moving to an idle state.

9. The non-transitory computer-readable medium according to claim 7 , further comprising releasing, at the user equipment, the another connection upon termination of the emergency call.

Assignments (9)
RELEASE OF SECURITY INTEREST Recorded Jun 3, 2021
From: TERRIER SSC, LLC
To: WSOU INVESTMENTS, LLC
Reel/Frame 056526/0093 →
SECURITY INTEREST Recorded Jun 1, 2021
From: WSOU INVESTMENTS, LLC
To: OT WSOU TERRIER HOLDINGS, LLC
Reel/Frame 056990/0081 →
RELEASE OF SECURITY INTEREST Recorded May 21, 2019
From: OCO OPPORTUNITIES MASTER FUND, L.P. (F/K/A OMEGA CREDIT OPPORTUNITIES MASTER FUND LP
To: WSOU INVESTMENTS, LLC
Reel/Frame 049246/0405 →
SECURITY INTEREST Recorded May 20, 2019
From: WSOU INVESTMENTS, LLC
To: BP FUNDING TRUST, SERIES SPL-VI
Reel/Frame 049235/0068 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 25, 2017
From: NOKIA TECHNOLOGIES OY
To: WSOU INVESTMENTS, LLC
Reel/Frame 043953/0822 →
SECURITY INTEREST Recorded Sep 21, 2017
From: WSOU INVESTMENTS, LLC
To: OMEGA CREDIT OPPORTUNITIES MASTER FUND, LP
Reel/Frame 043966/0574 →
CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE'S ADDRESS PREVIOUSLY RECORDED ON REEL 035500 FRAME 0757. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Nov 17, 2016
From: NOKIA CORPORATION
To: NOKIA TECHNOLOGIES OY
Reel/Frame 040641/0356 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 27, 2015
From: NOKIA CORPORATION
To: NOKIA TECHNOLOGIES OY
Reel/Frame 035500/0757 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 27, 2014
From: YLI-TUOMI, LIKKA; KOSKELA, JARKKO, MR.; LAITINEN, PASI; KINNUNEN, JUHA
To: NOKIA CORPORATION
Reel/Frame 033201/0010 →
Continuity (1)
Related Publication 20120309338A1 · Dec 6, 2012