Method and apparatus for header compression in a wireless communication system

• US 20020142730A1
• 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 7,031,666 B2
• Time in Patent Office: Days
• US Class Current: 455/72
• 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 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 63/068 using time-dependent keys, e.g. periodically changing keys cryptographic mechanisms or cryptographic arrangements for controlling usage of secret information H04L9/088
• 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 69/324 : in the data link layer [OSI layer 2], e.g. HDLC
• 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 28/06 : Optimizing the usage of the radio link, e.g. header compression, information sizing , discarding information system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365
• CPC Class Codes: H04W 80/00 : Wireless network protocols or protocol adaptations to wireless operation

Abstract

Method and apparatus for header compression in a wireless communication system supporting broadcast transmissions. The system periodically provides a header decompression message sufficient for a receiver to decompress the header. The decompression message transmission period is determined to avoid delay in accessing a broadcast session.

Claims

1. In a wireless communication system supporting a uni-directional transmission, a method comprising:

generating a transmission frame;

determining a header for the transmission frame;

compressing the header using a first format; and

periodically generating at least one parameter of the first format.

2. The method as in claim 1, wherein the unidirectional transmission is a broadcast service.

3. The method as in claim 2, wherein the at least one parameter of the first format is interleaved between broadcast content in a broadcast stream of information.

4. The method as in claim 3, wherein the broadcast stream of information is transmitted as Internet Protocol packets.

5. The method as in claim 2, wherein compressing further comprises:

applying an ROHC format.

6. In a wireless communication system supporting a unidirectional transmission, a method comprising:

receiving a transmission frame, the transmission frame having a header compressed using a first format;

receiving at least one parameter describing the first format; and

decompressing the transmission frame using the first format.

7. The method as in claim 6, wherein the transmission frame is part of a broadcast stream of information.

8. The method as in claim 7, wherein the broadcast stream of information comprises Internet Protocol packets.

9. The method as in claim 8, wherein the at least one parameter is interleaved with broadcast content in the broadcast stream of information.

10. In a wireless communication system supporting a unidirectional transmission, an infrastructure element, comprising:

means for generating a transmission frame;

means for determining a header for the transmission frame;

means for compressing the header using a first format; and

means for periodically generating at least one parameter of the first format.

11. In a wireless communication system supporting a unidirectional transmission, an infrastructure element, comprising:

means for receiving a transmission frame, the transmission frame having a header compressed using a first format;

means for receiving at least one parameter describing the first format; and

means for decompressing the transmission frame using the first format.

14. The communication signal as in claim 13, wherein the header protocol information portion is interleaved with the broadcast portion.

15. The communication signal as in claim 14, wherein the header protocol information portion is transmitted periodically.

12. A digital signal storage device, comprising:

first set of instructions for receiving a transmission frame, the transmission frame having a header compressed using a first format;

second set of instructions for receiving at least one parameter describing the first format; and

third set of instructions for decompressing the transmission frame using the first format.

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

a broadcast content portion comprising a plurality of transmission frames, each of the plurality of transmission frames having a compressed header;

and

a header protocol information portion, wherein the header protocol information portion includes information for decompressing at least one of the compressed headers of the plurality of transmission frames.