DISTRIBUTED BASE STATION WITH FREQUENCY DOMAIN INTERFACE ON WHICH SIGNAL SUBSPACE VARIES ACCORDING TO FREQUENCY BIN

DISTRIBUTED BASE STATION WITH FREQUENCY DOMAIN INTERFACE ON WHICH SIGNAL SUBSPACE VARIES ACCORDING TO FREQUENCY BIN

A method and apparatus are disclosed for determining a signal subspace in a communications system. A remote apparatus obtains signal streams from antenna elements or signal streams from antenna beams. Based on the obtained signal streams, the apparatus selects a signal subspace for a user, the signa...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: PIIRAINEN, Olli Juhani, NAGARAJ, Shirish
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
WIRELESS COMMUNICATIONS NETWORKS
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Beschreibung
Zusammenfassung:A method and apparatus are disclosed for determining a signal subspace in a communications system. A remote apparatus obtains signal streams from antenna elements or signal streams from antenna beams. Based on the obtained signal streams, the apparatus selects a signal subspace for a user, the signal subspace having a dimension M. Based on the selected signal subspace, the apparatus transmits, via an interface to a central apparatus, M streams of post-fast-Fourier-transform data, the interface being capable of transmitting a different subspace for different frequency bins.