Wireless communications system having built-in packet data compression and support for enabling non-standard features between network elements
US7920590B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2002 |
| Grant date | Apr 5, 2011 |
| Priority date | — |
| Expiry date | Mar 1, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/329
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A mobile station (100) and a compression/decompression node in a wireless network (5), preferably the GGSN 30 (30), agree on whether to apply compression/decompression, and what compression/decompression scheme to use either by pre-configuration (when the GGSN 30 is in the home network of the mobile terminal) or by signalling (when the GGSN 30 is in a visited or a roamed-to network). Additional information, such as a profile-specific dictionary, may be used to increase the compression efficiency, particularly during start-up. Dynamic data can also be accommodated. The compression/decompression may be turned on and off on a packet-by-packet basis, depending on whether the compression actually results in a smaller packet. A compressed/uncompressed indicator bit or bits can be inserted explicitly on a per packet basis, and/or the compressed/uncompressed indication can be derived implicitly. A desired data compression/decompression algorithm, or any desired Proprietary Feature, can be signaled, possible without requiring standardization changes, by using a Packet Data Protocol PDP Context Activation message with a predetermined Access Point Name (APN) message information element that i…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.