Telecommunications – Transmitter and receiver at separate stations – With control signal
Reexamination Certificate
2006-09-05
2006-09-05
Anderson, Matthew D. (Department: 2618)
Telecommunications
Transmitter and receiver at separate stations
With control signal
C455S522000
Reexamination Certificate
active
07103319
ABSTRACT:
In a telecommunication system (10) for providing multimedia broadcast services to many user equipments (40–45), a physical random access channel (39) is provided for uplink transmission of power control information from the user equipments to a radio site (30, 35). Based upon a comparison of signal-to-noise ratios (53) each particular user equipment sends (55) or inhibits from sending a power control signal to the radio site to which it is coupled. When the radio site of the telecommunication system detects a power control signal (73), the radio site adjusts the transmission power of a broadcast channel intended for reception by multiple user equipments (75) to be incrementally greater than the previous power (81). For lack of detection of a power control signal, adjusts the transmission power of a broadcast channel to be incrementally lower than the previous power.
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patent: 2001/0046877 (2001-11-01), Ohkubo et al.
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Cai Zhijun
Harrison Robert M.
Anderson Matthew D.
Motorola Inc.
West Lewis
Wills Kevin D.
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