Method and apparatus for broadcast signaling in a wireless communication system

• US 7,693,508 B2
• Filed: 08/20/2001
• Issued: 04/06/2010
• Est. Priority Date: 03/28/2001
• Status: Expired due to Term

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Leung, Nikolai K. N., Sinnarajah, Ragulan
• Primary Examiner(s): GELIN, JEAN ALLAND
• Application Number:
  US09/933,914
• Publication Number:
  US 20020142757A1
• Time in Patent Office: 3,151 Days
• Field of Search: 455/3.01, 455/3.02, 455/412, 455/12.1, 455/13.3, 455/11.1, 455/514, 455/515, 455/550, 455/427, 455/429, 455/3.06, 455/466, 455/414.1, 455/503, 348/14.01, 348/14.02, 348/461, 348/552, 725/81, 725/118, 725/125, 725/85, 725/105, 725/106, 725/63, 725/73, 725/74, 380/203, 370/474, 370/432, 370/230, 370/278, 370/252, 370/338, 370/329, 370/310, 370/311, 370/342, 370/389, 370/390, 370/395.1, 370/464, 370/469, 370/473, 370/475, 370/479, 370/312, 370/310.2, 370/310.1, 709/220, 709/225
• 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:

generating at a content server a broadcast session on a broadcast transmission channel;

interleaving broadcast overhead information with broadcast content comprising payload data wherein the broadcast overhead information provides information for decoding the payload data of the broadcast session; and

transmitting the broadcast session with the interleaved broadcast overhead information in-band on the broadcast transmission channel.

2. The method as in claim 1, wherein the broadcast overhead information comprises a session description protocol message containing information for processing the broadcast session.

3. The method of claim 2, wherein the session description protocol message comprises parameters and protocols for receiving, decoding and processing the associated broadcast session.

4. The method of claim 3, wherein the parameters and protocols define a protocol stack supporting the broadcast session.

5. A method of transmitting a communication signal, the method comprising:

generating at a content server a broadcast session for transmission on a broadcast transmission channel;

interleaving a session description protocol message (SDP message) with broadcast content comprising payload data, wherein the SDP message provides information for decoding the payload data of the broadcast session; and

transmitting the broadcast session with the interleaved SDP message in-band on the broadcast transmission channel.

6. The method as in claim 5, wherein the signal is transmitted via a broadcast transmission channel.

7. The method of claim 5, wherein the SDP message comprises parameters and protocols for receiving, decoding and processing the associated broadcast session.

8. The method of claim 7, wherein the parameters and protocols define a protocol stack supporting the broadcast session.

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

periodically receiving at a mobile device one of a plurality of session description protocol (SDP) messages in-band with a content stream comprising payload data of a broadcast session on a broadcast channel, wherein the SDP messages provide ongoing information for decoding the payload data of the broadcast session;

accessing the broadcast session on the broadcast channel;

retrieving the SDP messages from the transmission in the broadcast channel; and

processing the broadcast session using the SDP messages.

10. The method as in claim 9, wherein the SDP messages are interleaved with the content stream of the broadcast session.

13. The apparatus as in claim 9, 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.

14. The apparatus as in claim 13, wherein the memory storage is a cache memory.

15. The apparatus as in claim 13, wherein the memory storage is a look up table.

11. A wireless apparatus, comprising:

means for periodically receiving one of a plurality of session description protocol (SDP) messages in-band with a content stream comprising payload data of a broadcast session on a broadcast channel, wherein the SDP messages provide ongoing information for decoding the payload data of the broadcast session; and

means for processing the broadcast session using the SDP messages.

12. The apparatus as in claim 11, further comprising:

means for receiving header compression information.

16. An apparatus, comprising:

means for generating at a content server a broadcast session for transmission on a broadcast transmission channel;

means for interleaving broadcast overhead information with broadcast content comprising payload data wherein the broadcast overhead information provides information for decoding the payload data of the broadcast session; and

means for transmitting the broadcast session with the interleaved broadcast overhead information in-band on the broadcast transmission channel.

17. The apparatus of claim 16, wherein the broadcast overhead information comprises a session description protocol message containing information for processing the broadcast session.

18. The apparatus of claim 17, wherein the session description protocol message comprises parameters and protocols for receiving, decoding and processing the assocfated broadcast session.

19. The apparatus of claim 18, wherein the parameters and protocols define a protocol stack supporting the broadcast session.