Weight vector calculation unit for beamforming using received and/or integrated signal without training signal

A telecommunication system having an array antenna system, wherein the array antenna system has a plurality of antenna elements for beamforming to each user, and wherein the telecommunication system is an Orthogonal Frequency-Division Multiple Access (OFDMA)-based telecommunication system, the telecommunication system comprising:

• a Fast Fourier Transformer (FFT) configured to produce a FFT-processed signal by processing a FFT operation on a received signal from the antenna element;
• a beamformer configured to receive the received signal and/or the FFT-processed signal in order to produce a weight vector for beamforming;
• and
• a pilot phase estimator configured to receive the FFT-processed signal and the weight vector and produce a phase compensation signal to compensate a phase delay of a channel by multiplying the weight vector from the beamformer with the FFT-processed signal.

An array antenna telecommunication system comprising:

• a weight vector computing unit for beamforming;
• and
• a pilot phase estimating unit for phase compensation, wherein the telecommunication system is a Code Division Multiple Access 2000 (CDMA2000) or Wideband Code Division Multiple Access (WCDMA) telecommunication system, and
• wherein the weight vector computing unit comprises an algorithm executing unit configured to compute a weight vector using input signals consisting of a received signal from an antenna element and an integrated signal and an integration unit configured to produce the integrated signal by integrating the received signal from the antenna element, and
• wherein the pilot phase estimating unit is configured to receive the integrated signal and the weight vector and produce a phase compensation signal to compensate a phase delay of a channel by multiplying the weight vector from the algorithm executing unit with the integrated signal in a symbol-rate.

An array antenna telecommunication system comprising:

• a weight vector computing unit for beamforming;
• and
• a pilot phase estimator for phase compensation, wherein the telecommunication system is an Orthogonal Frequency-Division Multiple Access (OFDMA)-based telecommunication system, and
• wherein the weight vector computing unit comprises a beamformer configured to compute a weight vector using input signals consisting of a received signal from an antenna element and a Fast Fourier Transformer (FFT)-processed signal, and a Fast Fourier Transformer (FFT) configured to produce the FFT-processed signal by processing a FFT operation on the received signal from the antenna element, and
• wherein a pilot phase estimator configured to receive the FFT-processed signal and the weight vector and produce a phase compensation signal to compensate a phase delay of a channel by multiplying the weight vector from the weight vector computing unit with the FFT-processed signal.