Telecommunications – Transmitter and receiver at separate stations – With control signal
Reexamination Certificate
2004-12-17
2010-12-21
Afshar, Kamran (Department: 2617)
Telecommunications
Transmitter and receiver at separate stations
With control signal
C455S452200, C455S522000, C370S278000
Reexamination Certificate
active
07856210
ABSTRACT:
A radio access network node comprises a transport format selector (44) which uses plural input parameters for determining a transport format for a high-speed downlink shared channel (HS-DSCH). The transport format selector is arranged to protect radio quality (e.g., the signal to noise ratio (SIR)) of the high-speed downlink shared channel (HS-DSCH) against a radio quality fluctuation due to one or more of fast fading, power variations, or interference variations. The radio quality fluctuation may be a downlink power variation caused by or accompanying transmission on the high-speed downlink shared channel (HS-DSCH) itself (or any other channel such as a DPCH). The radio quality fluctuation may jeopardize reliability of or render inaccurate (e.g., stale) a reported value for a first input parameter ascribed to a radio condition and utilized to determine the transport format. The transport format selector promotes radio quality of the high-speed downlink shared channel (HS-DSCH) by compensating, in the determining of the transport format, for any inaccurate representation by the reported input value of a radio condition which may have changed at the time of transmission of the high-speed downlink shared channel (HS-DSCH). The first input parameter (for which the transport format selector anticipates a difference) can be, for example, a channel quality indicator (CQI) which represents the radio condition of radio channel quality.
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Afshar Kamran
Fahnert Marisol
Telefonaktiebolaget L M Ericsson (PUBL)
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