Abstract: Apparatus, and an associated method, for estimating an interfering-signal component portion of a receive signal received at a receiver. The training sequence associated with the interfering-signal component portion is determined, even without prior knowledge of the training sequence associated with such interfering-signal component portion. Once the training sequence of the interfering-signal component portion is determined, the receive signal is selectively, jointly-detected utilizing a joint detector, the interfering-signal component portion of the receive signal is better able thereby to be canceled or otherwise suppressed.

Abstract: A communication system supports multiple modulation schemes having differing symbol rates. The system supports two modulation schemes that have the same symbol rate and at least one modulation scheme that does not have the same symbol rate. For as long as communication can be carried out using the modulation schemes with the same symbol rate, the system avoids using the modulation scheme with different symbol rate, even if communication can be carried out using this scheme.