Paging method and apparatus for ims service

Patent metadata

Field	Value
Publication number	US-2016174188-A1
Application number	US-201414908960-A
Country	US
Kind code	A1
Filing date	Jul 28, 2014
Priority date	Jul 29, 2013
Publication date	Jun 16, 2016
Grant date	—

Abstract

The present invention relates to a wireless communication system, and more particularly, to a paging method and apparatus for an IMS service. A method which supports paging to provide an internet protocol multimedia subsystem (IMS) service to a terminal in a network node in accordance with an embodiment of the present invention may include the steps of: receiving downlink data forwarded to the terminal; when there is a determination to apply differentiated paging to the downlink data, adding information indicating that the differentiated paging is applied, to a message including the downlink data; and transmitting the message including information indicating that the differentiated paging is applied, to another network node.

First claim

1 - 8 . (canceled)

9 . A method for supporting paging for an IP (Internet Protocol) Multimedia Subsystem (IMS) service for a terminal in a first network node, the method comprising:
receiving a downlink data of IMS voice directed to the terminal; adding an information indicating that a differentiated paging is applied, to a downlink data notification (DDN) message; and transmitting the DDN message containing the information indicating that the differentiated paging is applied, to a second network node.

10 . The method according to claim 9 , wherein the information indicating that the differentiated paging is applied is added based on the downlink data or capability of the first node.

11 . The method according to claim 10 , wherein the information indicating that the differentiated paging is applied is contained in a GTP-U (GPRS Tunneling Protocol User Plane) basic header or GTP-U extended header of the message containing the downlink data, or is explicit or implicit information contained in the downlink data.

12 . The method according to claim 9 , wherein the first network node is a serving gateway (S-GW), and the second network node is a Mobility Management Entity (MME).

13 - 18 . (canceled)

19 . A first network node for supporting paging for an IP (Internet Protocol) Multimedia Subsystem (IMS) service for a terminal, the first network node comprising:
a transceiver module; and a processor, wherein the processor is configured to: receive a downlink data directed to the terminal using the transceiver module; add, an information indicating that the differentiated paging is applied, to a downlink data notification (DDN) message; and transmit the DDN message containing the information indicating that the differentiated paging is applied, to a second network node using the transceiver module.

20 . (canceled)

Assignees

• Lg Electronics Inc

Inventors

• Kim Laeyoung
• Kim Taehyeon
• Kim Jaehyun
• Lee Youngdae
• Kim Hyunsook

Classifications

• H04L65/1016

  IP multimedia subsystem [IMS] · CPC title

• H04W68/02 Primary

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

• H04L65/102

  Gateways (arrangements for connecting between networks having differing types of switching systems, e.g. gateways, H04L12/66) · CPC title

• H04L65/103

  in the network · CPC title

• H04L65/104

  in the network · CPC title