Wave beam forming method

The invention provides a wave beam forming method which comprises the steps that UE (user equipment) sends DMRS (demodulation reference signal) in each uplink data sub-frame and periodically transmits SRS (signal reference structure); an eNodeB (evolved node B) receives SRS signals according to the...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ZHANG ZHIWEI, LV BOXUAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TRANSMISSION TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:	The invention provides a wave beam forming method which comprises the steps that UE (user equipment) sends DMRS (demodulation reference signal) in each uplink data sub-frame and periodically transmits SRS (signal reference structure); an eNodeB (evolved node B) receives SRS signals according to the transmitting period of the SRS to carry out information channel estimation, calculates and stores the latest autocorrelation matrix Rxx (reactive extension) by utilizing the information channel estimation result; and the eNodeB receives DMRS signals of the UE in each uplink sub-frame to carry out information channel estimation, calculates and stores the latest instant wave beam forming vector w by utilizing the information channel estimation result and a GOB (grid of beam) algorithm. When downlink wave beams are formed, the weight coefficient of the downlink wave beam forming is calculated by utilizing the latest autocorrelation matrix Rxx and the latest instant wave beam forming vector w (WBF=RXX*w); and the wave