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
NMR analyzers for clinical evaluation of biosamples
Implantable medical device with adaptive signal processing and artifact cancellation
Chip cards providing trusted time references
Vibration-type driving device
Optical transmission module, method for manufacturing optical transmission module, and electronic device
Tobacco box
Establishing a secure memory path in a unitary memory architecture
  Randomly Featured Patents
Burp cloth
Image forming apparatus including sheet stacking apparatus
Transfer substrate, transfer method, and organic electroluminescent device manufacturing method
IGBT-Driver circuit for desaturated turn-off with high desaturation level
Method and apparatus for authorizing remote internet access
Combined package and dispenser for extrusible comestibles
Electric bus bar, the use thereof and a method for producing the same
Water based fiber treatment agent
Mechanical part made of ceramics
Saponin-decomposing enzyme, gene thereof and large-scale production sytem for producing soyasapogenol B