Method and apparatus for data transport in a wireless communication system

• US 20020141391A1
• 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: Hsu, Raymond T.
• Granted Patent: US 6,707,801 B2
• Time in Patent Office: Days
• US Class Current: 370/352
• CPC Class Codes: H04L 12/1877 Measures taken prior to transmission
• CPC Class Codes: H04L 12/189 in combination with wireless systems selective distribution or broadcast in wireless communication networks H04W4/06
• CPC Class Codes: H04L 2209/80 Wireless network architectures or network communication protocols for wireless network security H04W12/00
• CPC Class Codes: H04L 2463/101 applying security measures for digital rights management data processing systems or methods, specially adapted for commerce, e.g. marketing, shopping, billing, auctions or e-commerce G06Q30/00
• CPC Class Codes: H04L 63/0428 wherein the data content is protected, e.g. by encrypting or encapsulating the payload
• 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: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/611 for multicast or broadcast systems for broadcast or conference H04L12/18; arrangements for broadcast or distribution combined with broadcast H04H20/00; arrangements for broadcast applications with a direct linkage to broadcast information or to broadcast space-time H04H60/00; selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS], H04W4/06
• CPC Class Codes: H04L 65/65 Network streaming protocols, e.g. real-time transport protocol [RTP] or real-time control protocol [RTCP]
• CPC Class Codes: H04L 65/70 Media network packetisation
• CPC Class Codes: H04L 67/04 specially adapted for terminals or networks with limited capabilities; specially adapted for terminal portability
• CPC Class Codes: H04L 67/14 Session management for real-time applications in data packet communications networks H04L65/1066
• CPC Class Codes: H04L 67/535 Tracking the activity of the user network monitoring arrangements H04L43/00; recording of computer activity G06F11/34
• CPC Class Codes: H04L 69/04 Protocols for data compression, e.g. ROHC
• CPC Class Codes: H04L 69/16 Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
• CPC Class Codes: H04L 69/161 Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields
• CPC Class Codes: H04L 69/164 Adaptation or special uses of UDP protocol
• CPC Class Codes: H04L 69/22 Parsing or analysis of headers
• CPC Class Codes: H04L 69/32 Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
• CPC Class Codes: H04L 69/325 : in the network layer [OSI layer 3], e.g. X.25 H04L69/16 takes precedence
• CPC Class Codes: H04L 9/30 : Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy
• CPC Class Codes: H04L 9/40 : Network security protocols
• CPC Class Codes: H04W 12/033 : of the user plane, e.g. user's traffic
• CPC Class Codes: H04W 12/04 : Key management, e.g. using generic bootstrapping architecture [GBA]
• CPC Class Codes: H04W 76/40 : for selective distribution or broadcast

Abstract

Method and apparatus for data packet transport in a wireless transmission system supporting broadcast transmissions. Broadcast streams are provided in IP packets routed to a subscriber group. The PDSN applies an outer header to each Broadcast stream frame identifying the frame as part of a multi-cast transmission. The PDSN transmits the frames to at least on PCF, wherein the PCF duplicates the received frame for each user in the subscription group, alleviating the processing of the PDSN.

Claims

1. A method for transmitting Internet Protocol packets in a wireless transmission system supporting broadcast transmissions, the method comprising:

generating a first transmission frame;

transmitting the first transmission frame with an inner header identifying the source and destination of the first transmission frame;

applying an outer header to the first transmission frame and inner header, the outer header identifying a multicast group destination for the first transmission frame.

2. The method as in claim 1, wherein generating a first transmission frame further comprises:

compressing the inner header.

3. The method as in claim 1, further comprising:

Multicast routing the first transmission frame to multiple target recipients.

4. The method as in claim 3, wherein the first transmission frame is part of a broadcast stream of information, and wherein the multiple target recipients are subscribers to the broadcast stream of information.

5. A method for processing Internet Protocol packets in a wireless transmission system supporting broadcast transmissions, the method comprising:

receiving a first transmission frame having an inner header identifying the source and destination of the first transmission frame;

applying an outer header to the first transmission frame and inner header, the outer header identifying a multicast group destination for the first transmission frame; and

transmitting the first transmission frame with the outer header and inner header to the multicast group.

6. The method as in claim 5, wherein the first transmission frame is part of a broadcast stream of information, and wherein the multicast group comprises subscribers to the broadcast stream of information.

7. The method as in claim 6, wherein the first transmission frame is part of a broadcast stream of information, and wherein the multiple target recipients are subscribers to the broadcast stream of information.

8. An infrastructure element for processing Internet Protocol packets in a wireless transmission system supporting broadcast transmissions, the infrastructure element comprising:

means for receiving a first transmission frame having an inner header identifying the source and destination of the first transmission frame;

means for applying an outer header to the first transmission frame and inner header, the outer header identifying a multicast group destination for the first transmission frame; and

means for transmitting the first transmission frame with the outer header and inner header to the multicast group.

9. A digital signal storage device, comprising:

first set of instructions for receiving a first transmission frame having an inner header identifying the source and destination of the first transmission frame;

second set of instructions for applying an outer header to the first transmission frame and inner header, the outer header identifying a multicast group destination for the first transmission frame; and

third set of instructions for transmitting the first transmission frame with the outer header and inner header to the multicast group.

10. In a wireless communication system supporting a broadcast service, a communication signal transmitted via a carrier wave, the communication signal having a plurality of transmission frames, each of the plurality of transmission frames comprising:

a payload of broadcast content;

an inner header identifying a source and a destination of the payload; and

an outer header identifying a multicast group destination for the payload.