Integrating voice and data applications in T/CDMA architectures

This letter analyzes the behavior of two time-code division architectures s erving voice and data applications on the uplink of a cellular system. Both solutions attribute speech users one code over a timeslot, whereas data us ers are granted several codes over the same timeslot or a single code over several time slots. Call admission control dynamically attributes resources if specified levels of transmission quality are met. The blocking probabil ity of the two classes of users is determined, demonstrating that the multi code T/CDMA approach performs better than the multislot solution and than a pure CDMA system.