METHOD AND DEVICE FOR DETECTING SIGNAL OF LTE UPLINK SYSTEM IN INTERFERENCE CONDITION

A method and device for detecting a signal of an LTE uplink system in an interference condition. The method comprises: receiving baseband signals of M receiving antennas, and after fast Fourier transform, conducting demapping to obtain frequency-domain baseband signals; extracting a DMRS inserted in...

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Bibliographische Detailangaben
Hauptverfasser: XIONG, Gaocai, LIN, Dengsheng, QIN, Hongfeng
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:A method and device for detecting a signal of an LTE uplink system in an interference condition. The method comprises: receiving baseband signals of M receiving antennas, and after fast Fourier transform, conducting demapping to obtain frequency-domain baseband signals; extracting a DMRS inserted in a received signal of each antenna, and then, calculating a channel gain h l,k of each receiving antenna; combining the baseband signals and the channel gains of the M receiving antennas to obtain a signal matrix Y k and a gain matrix H k ; calculating an interference noise covariance matrix R k on each subcarrier; conducting interference pre-processing on a received signal on each combined subcarrier to obtain the received signal (1) and the channel gain (2) after the interference pre-processing, where D = R k -1/2 ; and according to (3), conducting frequency-domain balancing on the received signal after the interference pre-processing.