Telecommunications – Transmitter and receiver at separate stations – Having measuring – testing – or monitoring of system or part
Reexamination Certificate
2007-04-10
2007-04-10
Milord, Marceau (Department: 2618)
Telecommunications
Transmitter and receiver at separate stations
Having measuring, testing, or monitoring of system or part
C455S063100, C455S067110, C455S069000, C455S452200, C455S522000, C455S277200, C370S252000, C370S328000, C375S264000, C375S265000, C342S387000
Reexamination Certificate
active
10845955
ABSTRACT:
RF communications received by a wireless terminal from a servicing base station are used to determine the channel quality such as reported bit error probability (BEP). The RF communications may be in the form of RF bursts that are part of a data frame. An estimated BEP may be determined from the signal to noise ratio (SNR) of the RF bursts and or a sequence of soft decisions extracted from the RF bursts, and their historical performance. The SNR maps to an estimated BEP based upon the modulation format of the RF bursts. The soft decisions decode to produce a data block. When the soft decisions decoded favorably, the re-encoded data block produces a sequence of re-encoded decisions. Comparing the re-encoded decisions to the soft decisions yields a re-encoded bit error (RBER). The reported BEP may be based upon the estimated BEP, RBER, and/or RBER threshold. The RBER threshold may be adaptively incremented or decremented depending upon whether or not the RF communications were properly decoded. The size of the increment or decrement may be based on the channel quality.
REFERENCES:
patent: 6169763 (2001-01-01), Woodward et al.
patent: 6208663 (2001-03-01), Schramm et al.
patent: 6400928 (2002-06-01), Khullar et al.
patent: 6427219 (2002-07-01), Yang
patent: 6542490 (2003-04-01), Ahmadvand et al.
patent: 6631127 (2003-10-01), Ahmed et al.
patent: 6694135 (2004-02-01), Oksala et al.
patent: 6741658 (2004-05-01), Ionescu
patent: 1 033 852 (1999-02-01), None
patent: WO 00/69023 (2000-11-01), None
patent: WO 01/33792 (2001-05-01), None
Chang Li Fung
Qiu Xiaoxin
Sollenberger Nelson R.
Wang Yongqian
Broadcom Corporation
Garlick & Harrison & Markison
McLauchlan Robert
Milord Marceau
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