Abstract: A communication receiver includes first and second antenna elements for receiving first and second signals respectively representative of first and second symbols encoded with a first or second channel coefficient and first and second delay lines for delaying the first and second signals respectively. A master rake module up-samples a pilot channel sequence at chip rate to mix it with the second delayed signals to deliver correlated delayed signals and to determine first and second channel coefficient estimates from the first delayed signals and the correlated delayed signals. A slave rake module determines first and second auxiliary composite symbols from the first and second delayed signals, a scrambling code sequence and a spreading code sequence. Lastly the first and second auxiliary composite symbols combine with the first and second channel coefficient estimates to determine first and second output signals.

Abstract: A detection process of a communication channel based on a ternary alphabet is provided wherein the channel transmitting a signal transports the same transmitted symbol for N sequential slots within one Time Transmission Interval (TTI). The detection process comprises a mechanism that eliminates unwanted signal contributions and isolates noise contributions. The detection process estimates a noise variance and sums consecutive received signals of a same Transmission Time Interval (TTI) in order to isolate a transmitted signal portion. The detection further obtains a chi squared distribution, which is used to determine a threshold that is proportional to the estimated noise variance. The threshold is then used to detect the communication channel.

Abstract: A detection process of a communication channel based on a ternary alphabet is provided wherein the channel transmitting a signal transports the same transmitted symbol for N sequential slots within one Time Transmission Interval (TTI). The detection process comprises a mechanism that eliminates unwanted signal contributions and isolates noise contributions. The detection process estimates a noise variance and sums consecutive received signals of a same Transmission Time Interval (TTI) in order to isolate a transmitted signal portion. The detection further obtains a chi squared distribution, which is used to determine a threshold that is proportional to the estimated noise variance. The threshold is then used to detect the communication channel.

Abstract: The present invention relates to a data receiver (5) for receiving user data and reference data (CPICH) coming from a transmitter 5 via at least a channel. This receiver comprises means for unscrambling (39,66,64) and means for despreading (40,68) received data, means for analyzing the characteristic of the channel (35), means for evaluating the contribution of interference of data caused by the channel (IEP1Fj-IEPKFj) and a substracter means intended for cancelling the contribution of interference in the user data, said substracter means (62) being placed before said unscrambling means.

Abstract: The invention relates to a mobile communication apparatus (200) comprising a receiver (203), a derotator (206), a demodulator (208) and a processor (212). The receiver (203) is connected to the derotator (206), the derotator (206) to the demodulator (208), and the controller (212) to the receiver (203), derotator (206) and demodulator (208). The derotator (206) comprises means for processing Primary Common Control Physical Channel during Space Time coding based Transmit Diversity transmission mode, pilot symbols, symbols during closed loop transmission modes, and means for outputting symbols to the demodulator in a temporal ordered sequence. The means are connected in series for enabling a universal derotator. A method for derotation is provided, comprising the steps of processing P-CCPCH during STTD transmission mode (1002), processing pilot symbols (1004), processing symbols during closed loop transmission modes (1006), and outputting symbols in a temporal ordered sequence (1008).

Abstract: A communication receiver includes first and second antenna elements for receiving first and second signals respectively representative of first and second symbols encoded with a first or second channel coefficient and first and second delay lines for delaying the first and second signals respectively. A master rake module up-samples a pilot channel sequence at chip rate to mix it with the second delayed signals to deliver correlated delayed signals and to determine first and second channel coefficient estimates from the first delayed signals and the correlated delayed signals. A slave rake module determines first and second auxiliary composite symbols from the first and second delayed signals, a scrambling code sequence and a spreading code sequence. Lastly the first and second auxiliary composite symbols combine with the first and second channel coefficient estimates to determine first and second output signals.

Abstract: The present invention relates to a data receiver (5) for receiving user data and reference data (CPICH) coming from a transmitter 5 via at least a channel. This receiver comprises means for unscrambling (39,66,64) and means for despreading (40,68) received data, means for analyzing the characteristic of the channel (35), means for evaluating the contribution of interference of data caused by the channel(IEP1Fj-IEPKFj) and a substracter means intended for cancelling the contribution of interference in the user data, said substracter means (62) being placed before said unscrambling means.

Abstract: The invention relates to a mobile communication apparatus (200) comprising a receiver (203), a derotator (206), a demodulator (208) and a processor (212). The receiver (203) is connected to the derotator (206), the derotator (206) to the demodulator (208), and the controller (212) to the receiver (203), derotator (206) and demodulator (208). The derotator (206) comprises means for processing Primary Common Control Physical Channel during Space Time coding based Transmit Diversity transmission mode, pilot symbols, symbols during closed loop transmission modes, and means for outputting symbols to the demodulator in a temporal ordered sequence. The means are connected in series for enabling a universal derotator. A method for derotation is provided, comprising the steps of processing P-CCPCH during STTD transmission mode (1002), processing pilot symbols (1004), processing symbols during closed loop transmission modes (1006), and outputting symbols in a temporal ordered sequence (1008).