OPTIMIZING STATIC DICTIONARY USAGE FOR SIGNAL, HYPERTEXT TRANSFER PROTOCOL AND BYTECODE COMPRESSION IN A WIRELESS NETWORK

• US 20080112411A1
• Filed: 07/02/2007
• Published: 05/15/2008
• Est. Priority Date: 11/13/2006
• Status: Active Grant

• Current Assignee: Cingular Wireless II LLC (AT&T, Inc.)
• Original Assignee: Cingular Wireless II LLC (AT&T, Inc.)
• Inventors: Rosenberg, William, Wuthnow, Mark S., Kwong, Kennie Y., Stafford, Matthew
• Granted Patent: US 7,796,592 B2
• Time in Patent Office: Days
• US Class Current: 370/392
• CPC Class Codes: H04L 65/1104 Session initiation protocol [SIP]
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 67/06 specially adapted for file transfer, e.g. file transfer protocol [FTP]
• CPC Class Codes: H04L 67/34 involving the movement of software or configuration parameters network booting or remote initial program loading [RIPL] G06F9/4416
• CPC Class Codes: H04L 67/54 Presence management, e.g. monitoring or registration for receipt of user log-on information, or the connection status of the users
• CPC Class Codes: H04L 67/56 Provisioning of proxy services store-and-forward switching systems in data switching networks H04L12/54
• CPC Class Codes: H04L 69/04 Protocols for data compression, e.g. ROHC
• 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 88/18 Service support devices; Network management devices

Abstract

Methods and apparatus including a virtual machine and a compression network platform are provided especially for improving the application of compression algorithms and unique identifiers for bytecode and bytecode packages including associated static dictionaries utilized to advantage in wireless networks. In particular, a given virtual machine need only identify to a receiving virtual machine the unique package identifier for one or more of an algorithm, a static dictionary or a hash for decompressing a received data signal. The receiving virtual machine may advertise what it has locally available to it so that no uploading is necessary. The actuation of bytecode by identifier may be requested at a given destination within the parameters set by RFC 3320. Universal decompressor virtual machines may receive uploaded compression algorithms, bytecode identifiers, package identifiers or static dictionary identifiers and the like from proxy call session control functions of a wireless network, the compressing machine or a compression network platform resource which in one embodiment may comprise an IANA database. The methods and apparatus may find particular application in improving the efficiency of presence/group list management.

Claims

1. A method of actuating locally available state items in a virtual machine of an endpoint of a wireless network comprising

determining a SigComp message format at a receiving virtual machine,

determining a value for a field of the determined SigComp message format,

assuming the following data comprises a destination and one of a bytecode or a bytecode package state identifier responsive to the determined value equaling a predetermined value, and

processing the bytecode or bytecode package state identifier to actuate the locally available state item at the assumed destination.

2. A method as recited in claim 1 wherein the field value comprises a code_len field value of zero.

3. A method as recited in claim 1 wherein the bytecode or bytecode package state identifier comprises 20 bits.

4. A method as recited in claim 1 wherein the bytecode package comprises bytecode and an associated static dictionary.

5. A method as recited in claim 1 wherein the receiving virtual machine comprises an element of a user equipment endpoint, said endpoint advertising a locally available state item.

6. A method as recited in claim 1, the receiving virtual machine receiving an authentication challenge from another endpoint.

7. A method as recited in claim 1, a bytecode being available to a call session control function endpoint at a network server.

8. A method as recited in claim 4 wherein an identified bytecode is available to a call session control function at a first network server and an associated static dictionary is available at a second network server.

9. A method as recited in claim 4 wherein an identified bytecode and an associated static dictionary is available to a call session control function endpoint as an identified package at a network server.

10. A method of actuating locally available state items in a virtual machine of an endpoint of a wireless network comprising

determining a SigComp message format at a receiving virtual machine,

determining a value for a field of the determined SigComp message format,

assuming the following data comprises a destination responsive to the determined value equaling a predetermined value and a length indicator for a bytecode partial state identifier, and

processing the bytecode partial state identifier to actuate the locally available state item at the assumed destination.

11. A method as recited in claim 10 wherein the field value comprises a code_len field value of zero.

12. A method as recited in claim 10 wherein the length indicator comprises 2 bits.

13. A method as recited in claim 12 wherein the 2 bit length indicator indicates a selection among a six, nine and twelve bit length of a bytecode partial state identifier.

14. An endpoint in a wireless network comprising a virtual machine having a memory having locally available state items including bytecode, a receiving virtual machine determining a SigComp message format at the receiving virtual machine, determining a value for a field of the determined SigComp message format, assuming the following data comprises a destination and one of a bytecode or a bytecode package state identifier responsive to the determined field value having a predetermined value, and processing the bytecode or bytecode package state identifier to actuate the locally available state item at the assumed destination.

15. An endpoint as recited in claim 14, the receiving virtual machine receiving an authentication challenge from another endpoint.

16. An endpoint as recited in claim 14, the endpoint advertising the local availability of a state item.

17. An endpoint as recited in claim 14, the endpoint communicating with a network server for receiving an identified bytecode or bytecode package from at least one server.

18. An endpoint as recited in claim 14, wherein the field value comprises a code_len field value of zero.

19. A method of updating bytecode at an endpoint in a wireless network comprising the steps of

uniquely identifying one of a given bytecode or static dictionary by including a universal resource name in a unique identifier and

retrieving the one of bytecode or static dictionary by querying the named universal resource.

20. A method as recited in claim 19 wherein the universal resource comprises a compression network platform.