Patent ID: 7403508

Claim:
A multiband MIMO-based dual-mode portable communication system has P Wideband Code Division Multiple Access (W-CDMA) and Ultra Wideband (UWB) portable stations having N antennas, a Multiple-Input Multiple-Output (MIMO)-based UWB base station having M antennas, a MIMO-based W-CDMA base station having Q antennas, an UWB multiband, a W-CDMA frequency band, and MIMO channels, where M, N, P, Q, and R are integers and greater than 1, the communication system further comprising: said MIMO-based W-CDMA base station including a W-CDMA baseband processor unit coupled to a MIMO-based W-CDMA filtering and multicarrier radio frequency (RF) unit that is connected to a W-CDMA control processor unit, which is connected with the W-CDMA baseband processor unit; said MIMO-based W-CDMA filtering and multicarrier RF unit coupled to the Q antennas; said W-CDMA baseband processor unit further including two digital filters, two down samplings, a MUX, and a multiband rake receiver and decoder unit; said MIMO-based UWB base station including an UWB baseband processor unit coupled to a MIMO-based UWB spreading and filtering unit followed by a MIMO-based modulation multicarrier unit that is connected to an UWB control processor unit, which is also connected with the UWB baseband processor unit and the MIMO-based spreading and filtering unit; said MIMO-based modulation multicarrier unit coupled to the M antennas; each of said P W-CDMA and UWB portable stations including a MIMO-based dual-mode W-CDMA and UWB filtering and multicarrier unit, a W-CDMA mobile baseband processor unit, an UWB OFDM multiband baseband processor unit, a W-CDMA and UWB OFDM multiband control processor unit, and a sharing memory bank unit; said MIMO-based dual-mode W-CDMA and UWB filtering and multicarrier unit further including two low noise amplifiers followed by two automatic gain controllers coupled to two analog bandpass filters connected to two dual-switch units, one of said two dual-switch units coupled to a W-CDMA down converter and demodulation and another of said two dual-switch units coupled to an UWB multiband down converter and demodulation, and both of said W-CDMA down converter and demodulation and said UWB multiband down converter and demodulation coupled to an analog-to-digital (A/D) converter unit; said A/D converter unit having two switch units that are controllable, each of the two switch units having two inputs and one output, and 8 A/D converters; and said MIMO-based dual-mode W-CDMA and UWB filtering and multicarrier unit coupled to the N antennas.