Multiplex communications – Communication over free space – Combining or distributing information via code word channels...
Reexamination Certificate
2005-10-25
2005-10-25
Phan, Man U. (Department: 2665)
Multiplex communications
Communication over free space
Combining or distributing information via code word channels...
C370S345000
Reexamination Certificate
active
06958989
ABSTRACT:
A user equipment transmits a data packet using a selected signature in a time slot of a radio frame within a superframe of a random access channel. The superframe being time divided into radio frames. A base station identifies the selected signature, transmission time slot and transmission radio frame of the data packet. The base station determines an uplink scrambling code for the user equipment based on in part the identified signature, transmission time slot and transmission radio frame. The base station selectively transmits an acknowledgment message based on in part an availability of the determined uplink scrambling code. The user equipment receives the acknowledgment message and transmits a subsequent data packet using the determined uplink scrambling code.
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Dick Stephen G.
Zeira Eldad
InterDigital Technology Corporation
Nguyen Toan
Phan Man U.
Volpe and Koenig P.C.
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