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
Advanced joint detection in a TD-SCDMA system
Shower bench
Haworthia plant named `AMSTERDAM`
System and method for ensuring compliance with organizational policies
Algorithm for color corrected analog dimming in multi-color LED system
HYR1 as a target for active and passive immunization against Candida
Cache memory control device, semiconductor integrated circuit, and cache memory control method
  Randomly Featured Patents
System and method for monitoring, displaying and recording balloon catheter inflation data
Tread which reduces running noise
Shoe sole
Hand positioned mouse
Multi-layer tab tape having distinct signal, power and ground planes and wafer probe card with multi-layer substrate
Implantable expandable medical devices having regions of differential mechanical properties and methods of making same
Sliding and swing apparatus for a portable apparatus
Thermal process for implementing the planarization inherent to stacked etch in virtual ground EPROM memories
Spray compositions for inhalation therapy of bronchial disorders