Abstract: Distribution parameter mapping determines the bit error probability (BEP) of a burst transmitted from a base station to the mobile station using a modulation and coding scheme (MCS) specified in the EDGE standard. Depending on whether the multi-bit soft decisions of the burst most resemble a Gaussian or a Rician distribution, the statistical parameters ? and ? or A and ? are determined. The ratio ?/? or A/? is mapped to an empirically determined BEP in a Gaussian or Rician lookup table, respectively. The BEPs are not influenced by the degree of code redundancy in the MCS. The BEPs for the four bursts in a radio block are then averaged, filtered and quantized according to the EDGE standard. The quantization level of the average BEP is reported to the base station so that subsequent radio blocks can be transmitted using an MCS that is appropriate for the estimated BEP.

Abstract: A biasing algorithm and apparatus for detecting the modulation format of a received signal is provided. In some aspects, the biasing method and apparatus are used in a mobile phone system implementing EDGE technology that transmits and receives both GMSK and 8PSK modulated signals. In some aspects, the biasing method and apparatus estimates the modulation format of bursts (310) of data blocks (305) of a received signal using information gathered and/or results determined during the modulation detection of one or more previous bursts of a data block to bias the modulation detection of a present burst of the same data block. In some aspects, the gathered information during the modulation detection of a previous burst comprises either the signal-to-noise ratio or the noise energy information of the previous burst.

Abstract: An information handling system includes a wireless device and interference suppression apparatus that adapts to the different interference problems experienced by the wireless device when the system changes from one operating mode or state to another. The interference suppression apparatus includes a controller that instructs an adaptive filter with respect to the appropriate filter characteristics to employ to suppress interference when the system is operating in a first mode. When the system changes to a second mode of operation, the interference suppression apparatus updates the filter characteristics to filter characteristics which are appropriate for suppressing interference associated with the second mode of operation.