초록 ▼

A CDMA wireless digital communication system which supports all types of voice and data communications while utilizing the minimum amount of bandwidth for the particular application. The system efficiently allocates ISDN bandwidth on demand by a subscriber. Upon initialization of the subscriber unit

A CDMA wireless digital communication system which supports all types of voice and data communications while utilizing the minimum amount of bandwidth for the particular application. The system efficiently allocates ISDN bandwidth on demand by a subscriber. Upon initialization of the subscriber unit, the system establishes a channel and generates the necessary spreading codes to support the highest capacity channel desired by the subscriber unit. Portions of the communication spectrum bandwidth are not reserved until actually required by the subscriber unit. 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.

대표청구항 ▼

[ What is claimed is:] [1.] A wireless digital CDMA communication system, including a base station and at least one subscriber unit, for transmitting a plurality of communications having independent data rates between a base station and a subscriber unit, the system comprising:at least one base stat

[ What is claimed is:] [1.] A wireless digital CDMA communication system, including a base station and at least one subscriber unit, for transmitting a plurality of communications having independent data rates between a base station and a subscriber unit, the system comprising:at least one base station comprising:first means for processing a first communication for transmitting to said at least one subscriber unit including first means for determining the data rate required to support said first communication; andfirst transmission means for transmitting communications at one of said plurality of data rates having data rate selection means responsive to said first determining means;and at least one subscriber unit comprising:means for establishing a communication channel having a capacity of a first data communication rate;means for communicating at a second data communication rate, wherein said first data communication rate is higher than said second data communication rate;second means for processing a second communication for transmitting to said base station including second means for determining the data rate required to support said communication;second transmission means for transmitting communications at one of a plurality of data rates including data rate selection means responsive to said second determining means; andmeans for establishing a ISDN channel including two B channels and a D channel; wherein said system selectively utilizes said B and said D channels depending upon the later rate required to support said desired communication.