Method and apparatus for providing voice call in mobile communication system and system thereof

Patent metadata

Field	Value
Publication number	US-2016014644-A1
Application number	US-201514864279-A
Country	US
Kind code	A1
Filing date	Sep 24, 2015
Priority date	May 13, 2008
Publication date	Jan 14, 2016
Grant date	—

Abstract

A method, performed by a mobile management entity (MME), for providing a voice call service to a user equipment (UE) in a mobile communication system and the MME are provided. The method includes sending, to an evolved node B (eNB), a first message for paging to provide the voice call service to the UE; receiving, from the eNB, a second message including a cause associated with a domain change from a packet switching (PS) domain to a circuit switching (CS) domain; and sending, to a gateway in the PS domain, a third message for requesting suspension of a bearer to provide a service for the UE.

First claim

What is claimed is:

1 . A method, performed by a mobile management entity (MME), for providing a voice call service to a user equipment (UE) in a mobile communication system, the method comprising:
sending, to an evolved node B (eNB), a first message for paging to provide the voice call service to the UE; receiving, from the eNB, a second message including a cause associated with a domain change from a packet switching (PS) domain to a circuit switching (CS) domain; and sending, to a gateway in the PS domain, a third message for requesting suspension of a bearer to provide a service for the UE.

2 . The method of claim 1 , further comprising:
setting information associated with the UE to a suspended state.

3 . The method of claim 1 , further comprising:
receiving, from the gateway in the PS domain, a fourth message indicating that the third message has been received in the gateway.

4 . The method of claim 1 , wherein the first message comprises a core network (CN) domain indicator for indicating a domain where the UE is located to receive the voice call service.

5 . A mobile management entity (MME) for providing a voice call service to a user equipment (UE) in a mobile communication system, the MME comprising:
a transceiver for transmitting and receiving messages; and a controller configured to:
control the transceiver to transmit, to an evolved node B (eNB), a first message for paging to provide the voice call service to the UE,
control the transceiver to receive, from the eNB, a second message including a cause associated with a domain change from a packet switching (PS) domain to a circuit switching (CS) domain and
control the transceiver to transmit, to a gateway in the PS domain, a third message requesting suspension of a service being provided to the UE in the PS domain.

6 . The MME of claim 5 , wherein the controller is further configured to set, before transmitting the first message, information associated with the UE to a suspended state.

7 . The MME of claim 5 , wherein the receiver is further configured to receive, from the gateway in the PS domain, a fourth message indicating that the third message is received in the gateway.

8 . The MME of claim 5 , wherein the first message comprises a core network (CN) domain indicator for indicating a domain where the UE is located to receive the voice call service.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Yeoum Tae-Sun
• Bae Beom-Sik
• Choi Sung-Ho
• Lim Hyoung-Kyu
• Lim Han-Na

Classifications

• H04W76/10 Primary

  Connection setup · CPC title

• H04W48/08

  Access restriction or access information delivery, e.g. discovery data delivery (signalling during connection H04W76/00) · CPC title

• H04W92/02

  Inter-networking arrangements · CPC title

• H04W68/02

  Arrangements for increasing efficiency of notification or paging channel · CPC title

• H04W36/0022 Primary

  for transferring data sessions between adjacent core network technologies · CPC title