Method for reducing a false alarm probability for a notification for transmission of control information for an MBMS in a mobile communications system

• US 20050271007A1
• Filed: 04/14/2005
• Published: 12/08/2005
• Est. Priority Date: 04/14/2004
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Choi, Sung-Ho, Hwang, Sung-Oh, Jeong, Kyeong-In, Lee, Ju-Ho, Lee, Kook-Heui
• Granted Patent: US 7,443,813 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04L 51/58 Message adaptation for wireless communication
• CPC Class Codes: H04W 4/06 Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
• CPC Class Codes: H04W 68/00 User notification, e.g. alerting and paging, for incoming communication, change of service or the like
• CPC Class Codes: H04W 72/30 Resource management for broadcast services

Abstract

A notification method for informing a UE of an existence or absence of control information for an MBMS in a mobile communication system supporting the MBMS. In the method, the UE receives a notification indicator channel independently reporting the existence of the control information for the MBMS, confirms at least one notification indicator of the notification indicator channel, thereby confirming the existence of the control information relating to the requested MBMS. Further, a method is proposed, which can minimize an alarm due to other MBMSs.

Claims

1. A method for efficiently receiving a notification channel in a mobile communication system including a user equipment, a radio access network, and a core network, wherein control information for a broadcasting service requested by a predetermined user equipment is notified through the notification channel, the radio access network provides the broadcasting service to the user equipments according to services, and the core network is connected to the radio access network for providing the broadcasting service, the method comprising:

transmitting a notification indicator channel including at least two notification indicators to the user equipment, the at least two notification indicators representing existence of the notification channel; and

confirming the notification channel when said at least two notification indicators have positive values, after the user equipment confirms the notification indicator channel in a predetermined period.

2. The method as claimed in claim 1, further comprising determining positions of the at least two notification indicators of the notification indicator channel for the broadcasting service between the radio access network and the user equipment.

3. The method as claimed in claim 1, further comprising determining positions of the at least two notification indicators of the notification indicator channel for the broadcasting service through a signaling between the radio access network and the user equipment.

4. The method as claimed in claim 1, further comprising determining positions of the at least two notification indicators of the notification indicator channel for the broadcasting service using one of a same equation and a same internal operation in the radio access network and the user equipment.

5. A method for receiving a notification channel in a mobile communication system providing a broadcasting service, the mobile communication system including a user equipment, a radio access network, and a core network, wherein control information for the broadcasting service requested by a predetermined user equipment is notified through the notification channel, the radio access network provides the broadcasting service to the user equipment according to services, and the core network is connected to the radio access network for providing the broadcasting service, the method comprising:

receiving information for a notification indicator channel through a broadcasting channel, the notification indicator channel representing if the notification channel exists;

determining a position of at least one notification indicator using the information for the notification indicator channel, said at least one notification indicator representing existence of the control information for the broadcasting service; and

confirming the notification channel when said at least one notification indicator for the broadcasting service has been set as a positive value in the determined position.

6. A method for receiving a notification channel in a mobile communication system providing a broadcasting service, the mobile communication system including a user equipment, a radio access network, and a core network, wherein control information for the broadcasting service requested by the user equipment is notified through the notification channel, the radio access network provides the broadcasting service to the user equipments according to services, and the core network is connected to the radio access network for providing the broadcasting service, the method comprising:

receiving a response message from the core network, in response to the broadcasting service requested by the user equipment, the response message including position information of at least one notification indicator that indicates if the notification channel for the broadcasting service exists;

receiving a notification indicator channel including the at least one notification indicator in a position determined according to the position information; and

confirming the notification channel when said at least one notification indicator has been set as a positive value.

7. A method for receiving a notification channel in a mobile communication system providing a broadcasting service, the mobile communication system including a user equipment, a radio access network, and a core network, wherein control information for the broadcasting service requested by the user equipment is notified through the notification channel, the radio access network provides the broadcasting service to the user equipment according to services, and the core network is connected to the radio access network for providing the broadcasting service, the method comprising:

receiving a response message including position information of at least one notification indicator that indicates if the notification channel for the broadcasting service requested by the user equipment exists;

receiving a broadcasting channel including position information of the notification indicator for the broadcasting service from the radio access network; and

confirming the notification channel when the notification indicator has been set as a positive value, after a notification indicator channel including said at least one notification indicator is received according to the position information.

8. A method for transmitting a notification channel in a mobile communication system providing a broadcasting service, the mobile communication system including a user equipment, a radio access network, and a core network, wherein control information for the broadcasting service requested by a predetermined user equipment is notified through the notification channel, the radio access network provides the broadcasting service to the user equipment according to services, and the core network is connected to the radio access network for providing the broadcasting service, the method comprising:

transmitting, by the core network, a response message in response to a request message of the broadcasting service transmitted from the user equipment, the response message including position information of at least one notification indicator that indicates if the notification channel for the broadcasting service exists;

detecting a start of the broadcasting service;

transmitting a message for reporting the start of the broadcasting service to the radio access network;

setting, by the radio access network, the at least one notification indicator corresponding to the broadcasting service to have a positive value; and

transmitting said at least one notification indicator to the user equipment through a notification indicator channel.

9. A method for transmitting, by a radio access network, a notification channel in a mobile communication system for providing a broadcast service, the mobile communication system including a user equipment, the radio access network, and a core network, wherein control information for the broadcasting service requested by the user equipment is notified through the notification channel, the radio access network provides the broadcasting service to the user equipments according to services, and the core network is connected to the radio access network for providing the broadcasting service, the method comprising:

transmitting, by the core network, a response message to the user equipment, the response message including position information of at least one notification indicator that indicates if the notification channel for the broadcasting service requested by the user equipment and other broadcasting services exist;

determining, by the radio access network, a number of notification indicators for the broadcasting service by combining a total number of the at least one notification indicator and an available number of the at least one notification indicator of a notification indicator channel that indicates if the control information for the broadcasting service and said other broadcasting services exist;

transmitting the determined number of the at least one notification indicator to the user equipment through a broadcasting channel; and

transmitting a notification indicator channel, which includes notification indicators having been set to have positive values according to the broadcasting service in the determined position information of the notification indicator, to the user equipment.

10. The method as claimed in claim 9, wherein a number of groups of the broadcasting service transmitted through the notification indicator channel is expressed by:

Number of Notification Group=_aC_b, wherein a=N_NI, b=N_NIs,

wherein N_NI represents a total number of notification indicators existing in a notification indicator channel, and N_NIs represents a number of notification indicators for transmitting the control information for the broadcasting service.