Automatic detection of a telecommunications fractional channel c

Details Automatic detection of a telecommunications fractional channel c Automatic detection of a telecommunications fractional channel c

1997-01-29

1999-10-26

Nguyen, Chau

Multiplex communications

Diagnostic testing

Determination of communication parameters

370433, 375224, 375260, H04J 314

Patent

active

059740310

ABSTRACT:
A method of detecting fractional channels in a telecommunications circuit. A non-idle data rate is measured for each channel in the telecommunications circuit. Channels having matching non-idle data rates are grouped into sets. Non-idle data rates are measured again for the channels within each set. In each set, any channels having non-matching non-idle data rates (with a small predetermined range of permissible variability) are eliminated. The measurement for each set is repeated multiple times. Each remaining set has channels that have substantially identical non-idle data rates over multiple time periods and each remaining set is assumed to constitute a fractional channel. Non-idle data rates are measured by counting non-idle octets over a fixed period of time, or by measuring throughput (non-idle octets per second) or by measuring utilization (throughput/capacity). In an alternative embodiment, idle flags or shifted idle flags for non-encrypted HDLC or SDLC protocols are used to identify provisional sets of channels. In still another embodiment, channels identified as voice channels are removed from provisional sets.

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patent: 5619500 (1997-04-01), Hiekali
patent: 5627820 (1997-05-01), Kwan

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