Abstract:
The present invention relates to a multiple-mode broadband wireless communication device and method, wherein a multiple-mode broadband sending device comprises: a baseband output unit which outputs a plurality of digital signals in parallel; an intermediate frequency processing unit which subjects the digital signals, which have been output in parallel, to up-conversion to intermediate frequencies in a range in which they do not interfere with each other; a conversion unit which converts the parallel digital signals, which result from the up-conversion to the intermediate frequencies, to series digital signals; a digital-analogue conversion unit which converts the series digital signals to analogue signals; and a wireless frequency processing unit which converts the analogue signals to a transmission frequency corresponding to the required communication service.
Abstract:
Es werden eine drahtlose Multimode-Breitband-Kommunikationsvorrichtung und ein drahtloses Multimode-Breitband-Kommunikationsverfahren geschaffen wobei eine Multimode-Ultrabreitband-Sendevorrichtung eine Basisbandausgabeeinheit zum parallelen Ausgeben mehrerer digitaler Signale, eine Mittenfrequenzverarbeitungseinheit, um die ausgegebenen parallelen digitalen Signale auf Mittenfrequenzen aufwärts umzusetzen, wobei die Aufwärtsumsetzung in einem Bereich ausgeführt wird, in dem die ausgegebenen parallelen Signale keine gegenseitige Störung verursachen, einen Parallel/Seriell-Umsetzer, um die umgesetzten parallelen digitalen Signale, die auf die Mittenfrequenzen aufwärts umgesetzt werden, in ein serielles digitales Signal umzusetzen, einen Digital/Analog-Umsetzer, um das serielle digitale Signal in ein analoges Signal umzusetzen, und eine Hochfrequenzverarbeitungseinheit, um das analoge Signal auf mehrere Sendefrequenzen, die jeweils gewünschten Kommunikationsdiensten entsprechen, aufwärts umzusetzen, enthalten kann.
Abstract:
In the hardware-efficient demodulator for a CDMA adaptive antenna array mechanism of a mobile radio communication system, a correlators bank receives digital baseband signals received through an antenna array of a base station and computes correlation values with a local code sequence. A beamformer receives the digital baseband signals and the correlation values from the correlators bank and calculates beamforming weight vectors. A searchers bank receives the digital baseband signals and calculates an initial acquisition and reliable timing information for a multipath search by a common work with the beamformer, which uses a beamforming algorithm. A beamforming complex multiplier for a finger performs a complex multiplication for the beamforming weight vectors and the digital baseband signals, and sums up them. A finger bank receives output signals from the beamforming complex multiplier, executes a code tracking for an alignment between a transmission code and a phase by each multipath on the basis of the multipath search timing information to then provide the timing information of the multipath tracking to the correlators bank, and outputs signals of dispreaded multipath through a time alignment based on each path. A multipath combiner performs a multipath combination for the output signals of the finger bank on a time base and outputting it.
Abstract:
In the hardware-efficient demodulator for a CDMA adaptive antenna array mechanism of a mobile radio communication system, a correlators bank receives digital baseband signals received through an antenna array of a base station and computes correlation values with a local code sequence. A beamformer receives the digital baseband signals and the correlation values from the correlators bank and calculates beamforming weight vectors. A searchers bank receives the digital baseband signals and calculates an initial acquisition and reliable timing information for a multipath search by a common work with the beamformer, which uses a beamforming algorithm. A beamforming complex multiplier for a finger performs a complex multiplication for the beamforming weight vectors and the digital baseband signals, and sums up them. A finger bank receives output signals from the beamforming complex multiplier, executes a code tracking for an alignment between a transmission code and a phase by each multipath on the basis of the multipath search timing information to then provide the timing information of the multipath tracking to the correlators bank, and outputs signals of dispreaded multipath through a time alignment based on each path. A multipath combiner performs a multipath combination for the output signals of the finger bank on a time base and outputting it.
Abstract:
In the hardware-efficient demodulator for a CDMA adaptive antenna array mechanism of a mobile radio communication system, a correlators bank receives digital baseband signals received through an antenna array of a base station and computes correlation values with a local code sequence. A beamformer receives the digital baseband signals and the correlation values from the correlators bank and calculates beamforming weight vectors. A searchers bank receives the digital baseband signals and calculates an initial acquisition and reliable timing information for a multipath search by a common work with the beamformer, which uses a beamforming algorithm. A beamforming complex multiplier for a finger performs a complex multiplication for the beamforming weight vectors and the digital baseband signals, and sums up them. A finger bank receives output signals from the beamforming complex multiplier, executes a code tracking for an alignment between a transmission code and a phase by each multipath on the basis of the multipath search timing information to then provide the timing information of the multipath tracking to the correlators bank, and outputs signals of dispreaded multipath through a time alignment based on each path. A multipath combiner performs a multipath combination for the output signals of the finger bank on a time base and outputting it.