Resources Contact Us Home
Maintaining data connectivity for handoffs between compression-enabled and compression-disabled communication systems

Image Number 3 for United States Patent #7668545.

Methods and apparatus are presented for enabling data connectivity when a handoff occurs between one communication network and another communication network, wherein the communication networks belong to different air interface standards. The mobile station triggers a Compression Control Protocol (CCP) request message to a tethered device if the mobile station determines that a new PDSN is not enabled to perform the CCP protocol. The tethered device then responds with a CCP request message with or without new negotiation parameters. The mobile station forwards the CCP request message to the new PDSN. Since the new PDSN is not enabled with CCP, the new PDSN responds with a CCP rejection message. The rejection message is passed from the mobile station back to the tethered device. The tethered device then sends uncompressed data packets to the PDSN.

  Recently Added Patents
Content display system
Stand for food service
Digital media content distribution
Specimen preparation device, and control method in specimen preparation device
Scalable encoding apparatus, scalable decoding apparatus, scalable encoding method, scalable decoding method, communication terminal apparatus, and base station apparatus
Stable nanoemulsions for ultrasound-mediated drug delivery and imaging
LED lamp including heat dissipator
  Randomly Featured Patents
Cylinder identifying system for internal combustion engine
Vehicle occupant protection apparatus and initiation method to use for vehicle occupant protection apparatus
Information processing device, information processing method, program, and data structure
Dahlia plant named `Fidahhypchepi`
Power generating apparatus
Downscan imaging sonar
Flight training glasses
Spray pretreatment system and method for pre-treating workpieces by spraying
Solid fuel stove
Turbine wheel for hydrokinetic coupling apparatus, made of plastic material