Access method to a common transmission channel for a...

Details Access method to a common transmission channel for a... Access method to a common transmission channel for a...

H - Electricity

04

J

340/93

H04J 3/08 (2006.01) H04L 12/413 (2006.01) H04Q 11/04 (2006.01)

Patent

CA 1085015

MULTI-LEVEL MULTIPLE-ACCESS METHOD ABSTRACT A method is disclosed by which several data stations which use a single communication channel, and which are simultaneously ready to transmit a data packet, can send a request for channel allocation, and will be granted the channel each for one data packet transmission, all within one time frame without central control, polling, or collisions. Addres- ses of all data stations desiring channel allocation are interleaved and superimposed in a specific manner for transmitting the requests, and by observing the resulting common signal, each data station determines when it can send its data packet. An arrangement for a data station is also disclosed which comprises the means necessary for transmitting ad- dress characters in an interactive procedure simultaneously with other stations, and for determining the allocated packet time slot. - 1 -

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