Random access channel access and backoff mechanism

Details Random access channel access and backoff mechanism Random access channel access and backoff mechanism

2005-02-22

2005-02-22

Ho, Duc (Department: 2665)

Multiplex communications

Diagnostic testing

Determination of communication parameters

C370S335000, C370S441000, C455S434000

Reexamination Certificate

active

06859441

ABSTRACT:
A user equipment has a transmitter for transmitting an access attempt signal and data packets over a random access channel. The access attempt signal requests a base station to permit the user equipment access to the random access channel. A receiver receives access control signals and access control modification signals transmitted from a base station. A controller is operatively coupled to the receiver and transmitter. The controller determines a wait period based on in part the received access control signals and access control modification signals and delays transmission of a subsequent access attempt signal for the wait period in response to an unsuccessful access attempt to the random access channel.

REFERENCES:
patent: 5752193 (1998-05-01), Scholefield et al.
patent: 6075779 (2000-06-01), Agarwal et al.
patent: 6366779 (2002-04-01), Bendor et al.
patent: 6574267 (2003-06-01), Kanterakis et al.
patent: 6614772 (2003-09-01), Sexton et al.
patent: 6721299 (2004-04-01), Song

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