Method and apparatus for broadcast signaling in a wireless communication system

• US 20020142757A1
• Filed: 08/20/2001
• Published: 10/03/2002
• Est. Priority Date: 03/28/2001
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Sinnarajah, Ragulan, Leung, Nikolai K.N.
• Granted Patent: US 7,693,508 B2
• Time in Patent Office: Days
• US Class Current: 455/412.1
• CPC Class Codes: H04L 63/061 for key exchange, e.g. in peer-to-peer networks cryptographic mechanisms or cryptographic arrangements for key agreement H04L9/0838
• CPC Class Codes: H04L 63/164 at the network layer
• CPC Class Codes: H04W 28/18 Negotiating wireless communication parameters
• CPC Class Codes: H04W 36/0007 for multicast or broadcast services, e.g. MBMS multicast or broadcast application services H04W4/06; resource management for broadcast services H04W72/30; connection management for selective distribution or broadcast H04W76/40
• CPC Class Codes: H04W 36/06 Reselecting a communication resource in the serving access point
• CPC Class Codes: H04W 48/12 using downlink control channel
• CPC Class Codes: H04W 72/30 Resource management for broadcast services

Abstract

Methods and apparatus for providing broadcast overhead information interleaved with a broadcast session in a transmission on a broadcast channel of a wireless communication system. In one embodiment, the information identifies parameters and a protocol stack for processing broadcast content. In one embodiment, the information is stored at the receiver to provide quick updating when a user changes to an alternate broadcast channel.

Claims

1. In a wireless communication system supporting a broadcast service, a method comprising:

transmitting a broadcast session on a broadcast transmission channel; and

transmitting broadcast overhead information with the broadcast session on the broadcast transmission channel.

2. The method as in claim 1, wherein the broadcast overhead information is a session description protocol message containing information for processing the broadcast session, and wherein the session description protocol message is interleaved with broadcast content of the broadcast session.

3. A communication signal transmitted on a carrier wave, the signal comprising:

a broadcast session portion; and

a session description protocol message (SDP message) interleaved with the broadcast session portion, wherein the SDP provides information for processing the broadcast session.

4. The communication signal as in claim 3, wherein the signal is transmitted via a broadcast transmission channel.

5. In a wireless communication system supporting a broadcast service, a method comprising:

receiving a session description protocol (SDP) message corresponding to the broadcast session on the broadcast channel;

accessing a broadcast session on a broadcast channel; and

processing the broadcast session using the SDP message.

6. The method as in claim 5, wherein the SDP message is interleaved with broadcast content of the broadcast session.

7. A wireless apparatus, comprising:

means for receiving a broadcast service parameter message corresponding to a broadcast session;

means for receiving an SDP corresponding to the broadcast session; and

means for processing the broadcast session using the SDP.

8. The apparatus as in claim 7, further comprising:

means for receiving header compression information.

9. The apparatus as in claim 7, further comprising:

memory storage adapted to store the SDP corresponding to a plurality of broadcast sessions, wherein the SDP of each of the plurality of broadcast sessions is updated when the corresponding broadcast session is accessed.

10. The apparatus as in claim 9, wherein the memory storage is a cache memory.

11. The apparatus as in claim 9, wherein the memory storage is a look up table.