Patent ID: 7856245
Filing Date: 2010-12-21
Classification: H04B

Abstract:
1. A multimode wireless communication device comprises: digital baseband processing module operably coupled to convert outbound data into outbound digital baseband signals and to convert inbound digital baseband signals into inbound data; analog to digital converter module operably coupled to convert inbound analog baseband signals into the inbound digital baseband signals; digital to analog converter module operably coupled to convert the outbound digital baseband signals into outbound analog baseband signals, the analog to digital converter converting in-phase inbound analog signals into in-phase inbound digital signals and converting quadrature inbound analog signals into quadrature inbound digital signals using alternating two-times oversampling, and the digital to analog converter converting in-phase outbound digital signals into in-phase outbound analog signals and converting quadrature outbound digital signals into quadrature outbound analog signals using the alternating two-times oversampling; first radio section operably coupled to convert the outbound analog baseband signals into first outbound radio frequency (RF) signals and to convert first inbound RF signals into the inbound analog baseband signals when the wireless communication device is in a first mode of operation; a second radio section operably coupled to convert the outbound analog baseband signals into second outbound RF signals and to convert second inbound RF signals into the inbound analog baseband signals when the wireless communication device is in a second mode of operation; and a diversity antenna arrangement, that includes a first antenna, a second antenna, a first diplexer coupled to the first antenna, and a second diplexer coupled to the second antenna, that selectively couples the first radio section to one of the first antenna and the second antenna, and that selectively couples the second radio section to one of the first antenna and the second antenna.