Network protocol for wireless broadband ISDN using ATM

Details Network protocol for wireless broadband ISDN using ATM Network protocol for wireless broadband ISDN using ATM

1995-12-05

1998-05-12

Olms, Douglas W.

Multiplex communications

Communication over free space

Portable address responsive receiver

370337, 370346, 370347, 370350, 370508, 379358, H04M 1100

Patent

active

057517029

ABSTRACT:
A networking protocol for wireless point (base station) to multipoint (user) networks where the users are stationary which utilized time-division multiplexing the in the direction of the base station to the user, heretofore called the downstream direction, and time-division multiple access in the direction of the user to the base station, heretofore called the upstream direction, where medium access control actively assigns time slots in the upstream direction to accommodate varying demands for bandwidth by multiple users, where upstream frame timing is synchronized to the downstream frame timing, where time slots carry individual ATM cells, where the first time slot of the downstream frame carries a frame start ATM cell, where upstream time slot synchronization is maintained to within .+-.2 modulation symbols through timing control from the base station to the user, where random access time slots are used for control plane requests by users entering the network and users in standby mode seeking to begin a session, where polling is used for management plane functions and responses by users are on a polling response time slot.

REFERENCES:
patent: 5084891 (1992-01-01), Ariyavisitakul et al.
patent: 5333175 (1994-07-01), Ariyavisitakul et al.
patent: 5426641 (1995-06-01), Afrashteh et al.
patent: 5475677 (1995-12-01), Arnold et al.
patent: 5568482 (1996-10-01), Li et al.

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