Prioritizing a multiple access channel in a wireless telephone s

Details Prioritizing a multiple access channel in a wireless telephone s Prioritizing a multiple access channel in a wireless telephone s

1992-10-23

1996-02-13

Peng, John K.

Telephonic communications

Having light wave or ultrasonic link for speech or paging...

Including fiber optic link within telephone network

370 852, 370 951, 370 953, 379 60, 379 63, 455 332, 455 341, 455 542, 455 561, 455 63, H04Q 722

Patent

active

054917417

ABSTRACT:
Base stations responding on a shared channel to a registration request message received on another shared channel from a wireless mobile unit with the base station to which the mobile unit is assigned transmitting in a first time slot and the other base stations transmitting in a time slot determined by the strength of the received signal from the mobile unit. If two base stations respond to the registration request message in the same time slot and the assigned base station does not respond, the mobile unit determines whether there is a response in a time slot which is earlier in time to the first time slot than the collided time slot. If the collided time slot is earlier in time than any other time slot in which a response is received, the mobile unit transmits a second registration request message specifying the collided time slot. Each of the base stations that had responded in the collided time slot responds by sending a base reply message in a random time slot, and the other base stations do not respond to this second registration request message. The mobile unit selects one of the base reply messages in a random time slot.

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Chia, S T S, Location Registration and Paging in a Third Generation Mobile System, BT Technology Journal, vol. 9, No. 4, Oct. 1991, UK, pp. 61-68.

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