Telecommunication system and method of communicating protocol information

• US 20030156631A1
• Filed: 01/13/2003
• Published: 08/21/2003
• Est. Priority Date: 07/18/2000
• Status: Abandoned Application

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Tan, Thian Joo, McPherson, Glenn Douglas, Terrill, Stephen
• Application Number:
  US10/332,716
• Publication Number:
  US 20030156631A1
• Time in Patent Office: Days
• US Class Current: 375/152
• CPC Class Codes: H04L 65/1016 IP multimedia subsystem [IMS]
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/1104 Session initiation protocol [SIP]
• CPC Class Codes: H04L 69/04 Protocols for data compression, e.g. ROHC
• CPC Class Codes: H04L 69/22 Parsing or analysis of headers
• 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 74/00 Wireless channel access

Abstract

The present invention applies to telecommunication networks, such as wireless mobile networks. In particular, the present invention deals with providing more efficient use of the resources of such mobile networks. The present invention provides in a wireless mobile telecommunications network, having a wireless mobile access interface, a message filter function adapted to remove, store and/or adapt header information from messages transferred to/from a wireless mobile device. The present invention is based on using the SIP signalling channel within the workings of a mobile network system more efficiently.

Claims

1. In a wireless mobile telecommunications network, having a wireless mobile access interface,

a message filter function adapted to remove and/or store header information from messages transferred to/from a wireless mobile device.

2. A message filter function as claimed in claim 1, wherein the removing and/or storing includes modifying the messages in accordance with predetermined criteria.

3. A message filter function as claimed in claim 1 or 2, wherein the messages are SIP messages.

4. A message filter function as claimed in claim 1, 2 or 3, wherein the filter is provided in the wireless mobile access interface;

including the SIP proxy server.

5. A telecommunications network, including the message filter function as claimed in claim 1, 2, 3 or 4.

6. A method of communicating messages between a wireless mobile device and a message source/destination,

the method including the step of:

removing header information from messages destined to the mobile device, and adding header information to messages emanating from the mobile device.

7. A method as claimed in claim 6, wherein the header information removed is substantially the same as the header information added.

8. A method as claimed in claim 6 or 7 wherein, the step includes modifying the messages in accordance with predetermined criteria.

9. A method as claimed in claim 8, wherein the filtered header information relates to a session.

10. A method, system or device as herein disclosed.