Fast acquisition of traffic channels for a highly variable data rate reverse link of a CDMA wireless communication system
AssigneeTantivy Communications, Inc.
InventorJames A. Proctor JR.
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AssigneeTantivy Communications, Inc.
InventorJames A. Proctor JR.
Estimating the term…
A service option overlay for a CDMA wireless communication in which multiple allocatable subchannels are defined on a reverse link by assigning different code phases of a given long pseudonoise (PN) code to each subchannel. The instantaneous bandwidth needs of each on-line subscriber unit are then met by dynamically allocating none, one, or multiple subchannels on an as needed basis for each network layer connection. The system efficiently provides a relatively large number of virtual physical connections between the subscriber units and the base stations on the reverse link for extended idle periods such as when computers connected to the subscriber units are powered on, but not presently actively sending or receiving data. These maintenance subchannels permit the base station and the subscriber units to remain in phase and time synchronism. This in turn allows fast acquisition of additional subchannels as needed by allocating new code phase subchannels. Preferably, the code phases of the new channels are assigned according to a predetermined code phase relationship with respect to the code phase of the corresponding maintenance subchannel.
A method for communication of data between a base station and multiple subscriber units over one or more CDMA communication channels, the method comprising the steps of:
A method for managing data transmissions between a base station and a plurality of field units in a wireless CDMA communication system comprising the steps of:
A method of supporting variable rate data transfers on communication links between a base station and each of a plurality of field units in a wireless CDMA communication system, the method comprising the steps of:
Dependencies are inferred from the claim text.