Multiplex communications – Communication over free space – Combining or distributing information via time channels
Patent
1995-06-27
1997-06-10
Olms, Douglas W.
Multiplex communications
Communication over free space
Combining or distributing information via time channels
370349, 370395, H04J 316
Patent
active
056383711
ABSTRACT:
A medium access control (MAC) layer protocol is used in a wireless ATM system for integrated support of ATM services, including constant bit-rate (CBR), variable bit-rate (VBR) and available bit-rate (ABR) services. The MAC protocol supports both connectionless packet and connection-oriented virtual circuit modes, with appropriate service parameter and quality-of-services selection. A dynamic time division, multiple access/time division multiplex (TDMA/TDM) approach accommodates the service classes in an integrated manner. A supervisory MAC procedure integrates ATM ABR/VBR/CBR virtual circuits, providing burst-by-burst allocation of ABR cells and call-by-call allocation of VBR and CBR bandwidth parameters. A mechanism is provided for the dynamic allocation of subframe capacities, assignment of ABR slots based on desired queueing rules, assignment of VBR slots based on ATM traffic shaper parameters and assignment of CBR slots based on bandwidth requirements.
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D. Raychaudhuri and N.D. Wilson, "ATM-Based Transport Architecture for Multiservices Wireless Personal Communication Networks", IEEE J. on Selected Areas in Comm., vol. 12, No. 8, Oct. 1994, pp. 1401-1414.
Raychaudhuri Dipankar
Xie Hai
Yuan Ruixi
Feig Philip J.
NEC USA Inc.
Olms Douglas W.
Patel Ajit
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