CPC H04B 1/40 (2013.01) [H04B 1/0057 (2013.01); H04B 1/04 (2013.01); H04W 72/0453 (2013.01); H04B 2001/0416 (2013.01); H04B 2001/045 (2013.01); H04B 7/0413 (2013.01); H04B 7/0604 (2013.01)] | 20 Claims |
1. A mobile device comprising:
a transceiver that is configured to partition a transmit signal of a radio frequency band into at least first and second sub-bands when modulation is non-contiguous and direct the first sub-band to a first front-end module and the second sub-band to a second front-end module, the transceiver further configured to direct a non-partitioned transmit signal to the first front-end module when the modulation is contiguous;
the first front-end module is electrically connected to a first antenna, the first front-end module having a first signal transmit path and a first signal receive path with a first receive intermodulation duplexer connected to the first signal receive path and to at least a first time division duplexing low noise amplifier (TDD LNA) and a first frequency division duplexing low noise amplifier (FDD LNA), the first receive intermodulation duplexer processes the second sub-band and passes a first back-injected signal to the first FDD LNA but not the first TDD LNA; and
the second front-end module electrically connected to a second antenna, the second front-end module having a second signal transmit path and a second signal receive path with a second receive intermodulation duplexer connected to a second FDD LNA but not a second TDD LNA, the second receive intermodulation duplexer processes the first sub-band and passes a second back-injected signal to the second FDD LNA.
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