Multiplex communications – Channel assignment techniques – Combining or distributing information via time channels...
Patent
1996-12-10
1999-09-14
Marcelo, Melvin
Multiplex communications
Channel assignment techniques
Combining or distributing information via time channels...
370461, 370465, H04L 522, H04Q 1104
Patent
active
059533447
ABSTRACT:
A head-end dynamically allocates bandwidth of a communications channel as a function of the type of communications traffic. In particular, the head-end communicates to subscriber stations via a broadband cable network using an access protocol, which is modified to provide a variable number of mini-slots and a variable number of data slots in each frame. Each mini-slot is used to request assignment of a data slot(s) to subscriber stations for the communication of information and, also, as a vehicle to resolve contention between subscriber stations. The head-end dynamically adjusts the number of mini-slots over a period time as a function of the type of communications traffic, e.g., bursty and isochronous traffic sources. Any variation in the number of mini-slots concomitantly effects the number of data slots available to communicate information. For example, less mini-slots provides more data slots. As a result, the dynamic adjustment of the number of mini-slots allows the head-end to more efficiently allocate bandwidth on the communications channel.
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Dail James E.
Li Chia-Chang
Magill Peter D.
Sriram Kotikalapudi
Lucent Technologies - Inc.
Marcelo Melvin
Opalach Joseph J.
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