Abstract: The present invention supports a new message format and protocol in an IP mobility system. Deallocation of a mobile node's IP address during a multipart communication session on a foreign network can cause serious communication and accounting errors. The new message format and protocol should eliminate the premature deallocation of a mobile node's IP address, which should reduce associated communication and accounting errors.

Abstract: A wireless communication network includes a mobile station and a base station which are adapted to allow an ongoing voice call to be converted to a digital fax call without forcing the user to relinquish the line and to restablish a call for the purposes of a transmitting digital fax (fax from a digital device). A base station controller is adapted to respond to an analog tone which prompts the base station to set up a digital fax call even though a voice call is already in place. Similarly, a mobile station is adapted to set up a digital fax call even though a voice call is in place either when it receives the analog tone originated by the PSTN or when it receives an AT command from a personal computer indicating that a digital fax transmission is desired.

Abstract: An interface device for faxing documents over a wireless network includes circuitry for emulating the public switched telephone network (PSTN) for communicating with an analog fax machine. The circuitry receives and stores a document image from the fax machine. It then prompts a wireless transceiver to establish a call connection. Once a call connection is created to a destination fax through the wireless network the interface device transmits the stored document image. The inventive method includes the steps of communicating with a fax over by means of one protocol to receive a document image, storing the document image, and transmitting the document image by means of a second protocol.

Abstract: Disclosed is an apparatus and method for increasing the efficiency of usage of an assigned rf spectrum used by a cellular or wireless communication system for a large number of high speed data transfer user requests. An MS, upon analyzing a plurality of parameters available to the MS may determine that although it needs more than a single channel to accommodate a given software data generating application, it may adequately and optimally use less than the maximum number of channels (or maximum data rate) that the MS can support. The MS then generates a request to the base station for additional channels (or a supplemental channel of a higher data rate) to transmit in one data burst a specified total number of quantity of data. The request may also specify the maximum number of channels (or maximum data rate) that the MS can support along with an indication of relative priority by means of indicating the amount of time over which the burst occur as an optimum situation for the MS.

Abstract: An enhanced mechanism for the reverse link power control in a wireless communication system, especially for high speed data applications and fixed wireless communication applications, dynamically adjusts the power control step size of the reverse link power control. The power control step size is dynamically adjusted based on various factors including types of service, number of reverse supplemental code channels, total received power at the base station, estimated diversity gain and required mobility, among others. The system which includes stationary infrastructure, can query a subscriber unit's capability in the support of a pre-defined set of power control step sizes before assigning it to the subscriber unit. Furthermore, the subscriber unit may decide its optimized power control step size based on certain feedbacks from the system.