Method and apparatus enabling enhanced throughput efficiency by

Multiplex communications – Channel assignment techniques – Combining or distributing information via time channels...

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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.

REFERENCES:
patent: 4641304 (1987-02-01), Raychaudhuri
patent: 5012469 (1991-04-01), Sardana
patent: 5384777 (1995-01-01), Ahmadi et al.
patent: 5570355 (1996-10-01), Dail et al.
patent: 5590131 (1996-12-01), Kabatepe
patent: 5790806 (1998-08-01), Koperda

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