Timing of point-to-multipoint control channel information

Abstract

The present invention is directed to notifying a mobile terminal, on a control channel MCCH and an indication channel MICH during a modification period, the presence of control information on the control channel MCCH during a subsequent modification period. Specifically, the mobile terminal subscribes to at least one point-to-multipoint service, receives first point-to-multipoint control information related to a first point-to-multipoint service on a point-to-multipoint control channel during a first modification period, and receives notification information on the point-to-multipoint control during the first modification period for indicating the presence of second point-to-multipoint control information related to a second point-to-multipoint service during a second modification period.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] Pursuant to 35 U.S.C. § 119(e), this application claims the benefit of earlier filing date and right of priority to U.S. Provisional Application No. 60 / 601,267, filed on Aug. 12, 2004, the contents of which is hereby incorporated by reference herein in its entirety.FIELD OF THE INVENTION [0002] The present invention relates to indicating to a mobile terminal the presence of control information, and more particularly, to notifying a mobile terminal, on a control channel and an indication channel during a modification period, the presence of control information on the control channel during a subsequent modification period. BACKGROUND OF THE INVENTION [0003] Recently, mobile communication systems have developed remarkably, but for high capacity data communication services, the performance of mobile communication systems cannot match that of existing wired communication systems. Accordingly, technical developments for IMT-2000, which is a ...

AI Technical Summary

Benefits of technology

The present invention is about improving the notification and control of a mobile terminal during a modification period of a point-to-multipoint service in a wireless communication system. The invention involves receiving first point-to-multipoint control information and notification information on a point-to-multipoint control channel during a first modification period, and receiving second point-to-multipoint control information on the point-to-multipoint control channel during a second modification period. The notification information can indicate whether the mobile terminal should continue reading the point-to-multipoint control channel during the second modification period. The technical effect of the invention is to improve the efficiency and accuracy of point-to-multipoint service notification and control during a modification period.

Problems solved by technology

Recently, mobile communication systems have developed remarkably, but for high capacity data communication services, the performance of mobile communication systems cannot match that of existing wired communication systems.

The different possibilities that exist for the mapping between the radio bearers and the transport channels are not always possible.

Specifically, the core network can only detect the existence of idle mode terminals within a region that is larger than a cell, such as a location or a routing area.

However, the radio resources are limited.

Thus, the UE consumes few radio resources.

However, the data rate available is very limited.

Thus, UE battery consumption is increased in the case where the UE is not transmitting.

Furthermore, the UE can only access the network after performing a Cell Update procedure which introduces additional delays when the UE wants to send data to the UTRAN.

Accordingly, it increases complexity for the UE to additionally read BCCH channels.

A cell broadcast service provided by the prior art is limited to a service in which text type short messages are broadcast to a certain area.

However, a problem arises when the UE wants to stop reading the MCCH.

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