GB0316054D0 - Method and apparatus for communicating data packets - Google Patents
Method and apparatus for communicating data packetsInfo
- Publication number
- GB0316054D0 GB0316054D0 GBGB0316054.6A GB0316054A GB0316054D0 GB 0316054 D0 GB0316054 D0 GB 0316054D0 GB 0316054 A GB0316054 A GB 0316054A GB 0316054 D0 GB0316054 D0 GB 0316054D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- data packets
- disruption
- mode
- compressed
- decompressed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/80—Responding to QoS
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/75—Media network packet handling
- H04L65/764—Media network packet handling at the destination
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/04—Protocols for data compression, e.g. ROHC
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/22—Parsing or analysis of headers
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention relates to a system for communicating data packets comprising compressed header information. An apparatus operates in a first mode which comprises the step of receiving data packets (301). Data packet sequence information is extracted (303) from the data packets and a disruption indication is determined (305) in response to the packet sequence information. If the disruption indicates that no disruption has occurred, the apparatus remains in the first mode and decompresses (309) the compressed headers and generates (311) decompressed data packets. If the disruption indicates that a disruption has occurred, the apparatus enters a second mode wherein a header compression resynchronisation process is initialised (313), while at the same time compressed headers are decompressed (315) and decompressed data packets are generated (317) without any validity check being performed. The second mode is exited (321) when the header compression resynchronisation process is terminated successfully. The invention allows for improved error recovery and is particularly suited for data packets using compressed IP/UDP/RTP headers.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0316054A GB2403877A (en) | 2003-07-09 | 2003-07-09 | Packet communication with header compression |
PCT/EP2004/051033 WO2005006704A1 (en) | 2003-07-09 | 2004-06-04 | Method and apparatus for communicating data packets |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0316054A GB2403877A (en) | 2003-07-09 | 2003-07-09 | Packet communication with header compression |
Publications (2)
Publication Number | Publication Date |
---|---|
GB0316054D0 true GB0316054D0 (en) | 2003-08-13 |
GB2403877A GB2403877A (en) | 2005-01-12 |
Family
ID=27741858
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0316054A Withdrawn GB2403877A (en) | 2003-07-09 | 2003-07-09 | Packet communication with header compression |
Country Status (2)
Country | Link |
---|---|
GB (1) | GB2403877A (en) |
WO (1) | WO2005006704A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100463445C (en) * | 2005-08-09 | 2009-02-18 | 大唐移动通信设备有限公司 | Data pack serial number counting method and data pack transmission method |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6882637B1 (en) * | 1999-10-14 | 2005-04-19 | Nokia Networks Oy | Method and system for transmitting and receiving packets |
JP3730835B2 (en) * | 2000-03-03 | 2006-01-05 | 株式会社エヌ・ティ・ティ・ドコモ | Packet transmission method, relay device, and data terminal |
JP3617967B2 (en) * | 2001-09-28 | 2005-02-09 | 松下電器産業株式会社 | Header compressed packet receiving apparatus and method |
-
2003
- 2003-07-09 GB GB0316054A patent/GB2403877A/en not_active Withdrawn
-
2004
- 2004-06-04 WO PCT/EP2004/051033 patent/WO2005006704A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO2005006704A1 (en) | 2005-01-20 |
GB2403877A (en) | 2005-01-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |