Method and system for signaling in broadcast communication system

• US 20050143080A1
• Filed: 02/16/2005
• Published: 06/30/2005
• Est. Priority Date: 08/20/2001
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Tiedemann, Edward G. Jr., Wang, Jun, Chen, Tao, Sinnarajah, Ragulan, Bender, Paul E.
• Granted Patent: US 7,689,226 B2
• Time in Patent Office: Days
• US Class Current: 455/450
• CPC Class Codes: H04H 20/28 Arrangements for simultaneous broadcast of plural pieces of information
• CPC Class Codes: H04H 20/72 of terrestrial networks
• CPC Class Codes: H04H 40/27 specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
• CPC Class Codes: H04H 60/91 Mobile communication networks for accessing the Internet H04H60/85
• CPC Class Codes: H04L 12/189 in combination with wireless systems selective distribution or broadcast in wireless communication networks H04W4/06
• CPC Class Codes: H04W 48/12 using downlink control channel
• 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
• CPC Class Codes: H04W 84/042 Public Land Mobile systems, e.g. cellular systems

Abstract

A method and a system for providing signaling in cellular telephone system providing broadcast services to fully integrate broadcast services with the services provided by the cellular telephone systems. The signaling method coordinate interaction between an access network and the subscriber station to allowing the subscriber station to decode the broadcast service, to receive paging messages while receiving the broadcast service, to properly transition between operation states, and other functions known to one of ordinary skill in the art.

Claims

1. A method for assigning frequencies to a subscriber station upon power-up in a broadcast communication system, comprising:

assigning a subscriber station to any of the frequencies transmitted by a sector in accordance with a hashing function if no broadcast channel is transmitted.

2. The method as claimed in claim 1, further comprising:

assigning a subscriber station subscribed to a broadcast channel to the frequencies transmitted by a sector modulated by the broadcast channel in accordance with a hashing function if broadcast channel is transmitted.

3. A method for providing broadcast parameters in a broadcast communication system, comprising:

receiving at each subscriber station in an idle state a first channel containing a message;

decoding at each subscriber station a header of the message; and

decoding the remainder of the message only at the subscriber stations interested in a broadcast service.

4. The method as claimed in claim 3, wherein said receiving at each subscriber station in an idle state a first channel containing a message comprises:

receiving at each subscriber station in an idle state a channel provided by a communication system for overhead messages.

5. The method as claimed in claim 3, further comprising:

receiving at each subscriber station interested in a broadcast service in a dedicated mode state a separate channel containing a message; and

decoding at the subscriber station the message.

6. The method as claimed in claim 5, wherein said receiving a first channel containing a message at each subscriber station in an idle state comprises:

receiving at each subscriber station in an idle state a dedicated channel.

7. A method for providing broadcast parameters in a broadcast communication system, comprising:

transmitting from a sector a message in a first channel;

receiving at each subscriber station in an idle state the first channel;

decoding at each subscriber station a header of the message;

decoding the remainder of the message only at the subscriber stations interested in a broadcast service; and

failing to receive the first channel at each subscriber station in a dedicated mode.

8. The method as claimed in claim 7, wherein said transmitting from a sector a message in a first channel comprises:

transmitting from the sector a channel provided by a communication system for overhead messages.

9. The method as claimed in claim 8, further comprising:

transmitting from the sector a separate channel containing the message to each subscriber station interested in a broadcast service in a dedicated mode; and

decoding the message at each subscriber station interested in a broadcast service in a dedicated mode.

10. The method as claimed in claim 9, wherein said transmitting from the sector a separate channel containing the message to each subscriber station interested in a broadcast service in a dedicated mode comprises:

transmitting from the sector a dedicated channel.