Method and apparatus for data transport in a wireless communication system

• US 6,707,801 B2
• Filed: 08/20/2001
• Issued: 03/16/2004
• Est. Priority Date: 03/28/2001
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Hsu, Raymond T.
• Primary Examiner(s): Pham, Chi
• Assistant Examiner(s): LY, ANH VU H
• APPLICATION: US 20020141391A1
• Time in patent office: 939 Days
• Field of Search: 370/310.2, 370/312, 370/328, 370/349, 370/389, 370/390, 370/392, 370/393, 370/432, 370/469, 370/471, 370/473, 370/474, 370/475, 370/485, 370/486, 370/487
• US Class Current: 370/312
• 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 29/06 characterised by a protocol
• CPC Class Codes: H04L 29/06027 Protocols for multimedia communication
• 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 65/4076 Multicast or broadcast data switching systems for broadcast or conference H04L12/18; analog television systems in general H04N7/00; creating video channels for a dedicated end-user group H04N21/2668; arrangements for broadcast or distribution combined with broadcast H04H20/00; arrangements for broadcast applications with a direct linkage of broadcast information H04H60/00; arrangements for push based network services H04L67/26
• CPC Class Codes: H04L 65/607 Stream encoding details interfacing the downstream path of a video distribution network H04N21/238, H04N21/438; controlling the complexity of a video stream H04N21/2662, H04N21/4621, H04N21/64792; protocols for data compression H04L69/04; header parsing or analysis H04L69/22
• CPC Class Codes: H04L 65/608 Streaming protocols, e.g. RTP or RTCP
• CPC Class Codes: H04L 67/04 adapted for terminals or networks with limited resources or for terminal portability, e.g. wireless application protocol [WAP] services or facilities specially adapted for wireless communication networks H04W4/00
• CPC Class Codes: H04L 67/14 for session management session control for real-time communications H04L65/1066; session initiation protocol H04L65/1006; negotiation of communication capabilities H04L69/24; computer conference arrangements H04L12/1813; connection management in wireless networks H04W76/00; session management for telephonic communication and services H04M7/00; intertask communications in multiprogramming arrangements G06F9/54
• CPC Class Codes: H04L 67/22 Tracking the activity of the user network monitoring arrangements H04L43/00; recording of computer activity G06F11/34; e-commerce G06Q30/00
• CPC Class Codes: H04L 69/04 Protocols for data compression compression in general H03M7/30; reduction of the amount or size of exchanged application data at an intermediate network processing stage H04L67/2828; optimizing, e.g. header compression, information sizing in wireless communication networks H04W28/06
• CPC Class Codes: H04L 69/16 Transmission control protocol/internet protocol [TCP/IP] or user datagram protocol [UDP] flow control or congestion control in data switching networks H04L47/10; transport layer addressing aspects H04L61/6063; special adaptations of TCP, UDP or IP for interworking of IP based networks with other networks H04L69/169; adapting video multiplex streams to a specific network H04N21/2381; network layer protocol adaptations for supporting mobility, e.g. mobile IP, H04W80/04
• CPC Class Codes: H04L 69/161 Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields protocols engines in general H04L69/12; OSI stack based layering aspects H04L69/32; protocol header analysis in general H04L69/22; addressing aspects in multiple interfaces involving dual-stack hosts H04L61/6086
• CPC Class Codes: H04L 69/164 Adaptation or special uses of UDP protocol
• CPC Class Codes: H04L 69/22 Header parsing or analysis traffic monitoring by flow aggregation or filtering H04L43/02; flow identification in packet switching networks H04L47/2483
• CPC Class Codes: H04L 69/32 : High level architectural aspects of 7-layer open systems interconnection [OSI] type protocol stacks
• 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: H04W 12/0013 : of user plane, e.g. user traffic
• 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, wherein the destination identifies multiple target recipients; and

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, wherein the multicast group destination specifies at least one intermediate control entity that controls the transmission of the packets between a packet data serving node and a base station.

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, wherein the destination identifies multiple target recipients;

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, wherein the multicast group destination specifies at least one intermediate control entities that controls the transmission of the packets between a packet data serving node and a base station; 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 multiple target recipients are subscribers to the broadcast stream of information.

7. 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, wherein the destination identifies multiple target recipients;

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, wherein the multicast group destination specifies at least one intermediate control entity that controls the transmission of the packets between a packet data serving node and a base station; and

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

8. 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, wherein the destination identifies multiple target recipients;

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, wherein the multicast group destination specifies at least one intermediate control entity that controls the transmission of the packets between a packet data serving node and a base station; and

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

9. 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, wherein the destination identifies multiple target recipients; and

an outer header identifying a multicast group destination for the payload, wherein the multicast group destination specifies at least one intermediate control entity that controls the transmission of the packets between a packet data serving node and a base station.

10. 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, the first transmission frame having;

an inner header identifying the source and destination of the first transmission frame, wherein the destination identifies multiple target recipients; and

an outer header identifying a multicast group destination for the first transmission frame, wherein the multicast group destination specifies at least one intermediate control entity that controls the transmission of the packets between a packet data serving node and a base station;

means for determining a set of other infrastructure elements that requires the first transmission frame based on the outer header;

means for creating a duplicate transmission frame from the first transmission frame; and

means for sending the duplicate transmission frame to the set of other infrastructure elements.

11. A digital signal storage device comprising:

first set of instructions for receiving a first transmission frame, the first transmission frame comprising;

an inner header identifying the source and destination of the first transmission frame, wherein the destination identifies multiple target recipients; and

an outer header identifying a multicast group destination for the first transmission frame, wherein the multicast group destination specifies at least one intermediate control entity that controls the transmission of the packets between a packet data serving node and a base station;

second set of instructions for determining a set of other infrastructure elements that requires the first transmission frame based on the outer header;

third set of instructions for creating a duplicate transmission frame from the first transmission frame; and

fourth set of instructions for sending the duplicate transmission frame to the set of other infrastructure elements.