Subscriber unit which selectively utilizes B and D channels to support a plurality of communications
AssigneeInterDigital Technology Corporation
InventorFatih M. Ozluturk
Life of this patent
Estimating the term…
Abstract
A subscriber unit for wireless digital communications which supports all types of voice and data communications while utilizing the minimum amount of bandwidth for the particular application. The subscriber unit efficiently allocates bandwidth on demand. The subscriber unit establishes a channel and generates the necessary spreading codes to support the highest capacity channel desired. Portions of the communication spectrum bandwidth are not reserved until actually required. Since the call setup is performed at the beginning of a call from that subscriber unit, including the assignment of spreading codes, a subscriber unit can quickly gain access to the portion of the spectrum that is required to support the particular application.
Claims24
A wireless digital subscriber unit for receiving, processing and transmitting a plurality of communications having independent data rates, the subscriber unit comprising:
- first means for establishing a first communication channel having a first data communication rate to support a first communication, including means for determining the data rate required to support said first communication;
- transmission channel selection means, responsive to said determining means, for selecting one or more transmission channels, from a plurality of available transmission channels, required to support said required data rate;
- and
- transmission means for transmitting said first communication using said one or more selected transmission channels;
- whereby said plurality of available transmission channels includes at least one B or D channel.
A wireless digital code division multiple access (CDMA) subscriber unit for supporting modification of data communication rates required by users, the subscriber unit comprising:
- means for establishing transmission channels having predetermined data rates;
- means for allocating at least one of said transmission channels to support a communication;
- means for transmitting said communication at an initial data communication rate using said allocated transmission channel;
- means for monitoring said communication and determining an adjusted data rate for continued support of said communication;
- means for re-allocating said transmission channels to support said communication based on the adjusted data rate, such that the sum of the data rates of the allocated channels is at least equal to the adjusted data rate and is not greater than the adjusted data rate plus a predetermined limit;
- and
- means for continuing the transmission of said communication within said allocated channels, whereby said subscriber unit dynamically modifies said data communication rates by re-allocating transmission channels during said communication.
A wireless digital subscriber unit for supporting a plurality of communication rates using a plurality of communication channels, the subscriber unit comprising:
- first means for processing a first communication for transmission, including first means for determining a first data rate required to support said first communication;
- means for allocating a sufficient number of communication channels for transmission at said first data rate, said allocating means being responsive to said first determining means;
- and
- means for monitoring said first determining means to initiate re-allocation of communication channels to change the first data rate.
Dependencies are inferred from the claim text.