Devices and methods for radio frequency front end systems
A wireless device comprising a first antenna and second antenna, a transceiver and a radio frequency front end system electrically coupled between the transceiver and the antennas. The RF front end system includes a first module operable to provide a high band transmit signal to the first antenna, receive a first high band receive signal and a first mid band receive signal from the first antenna. The first high band receive signal has a frequency range greater than that of the first mid band receive signal. The RF front end system further includes a second module operable to provide a mid band transmit signal to the second antenna, receive a second mid band receive signal and a second high band receive signal from the second antenna. The second high band receive signal has a frequency range greater than that of the second mid band receive signal.
1 . A radio frequency front end system for a wireless device, the radio frequency front end system comprising:
a first antenna terminal;
a first transmit and receive module electrically coupled to the first antenna terminal, the first transmit and receive module operable to provide a high band transmit signal to the first antenna terminal and to receive a first high band receive signal and a first mid band receive signal from the first antenna terminal, the first high band receive signal having a frequency range that is greater than a frequency range of the first mid band receive signal;
a second antenna terminal; and
a second transmit and receive module electrically coupled to the second antenna terminal, the second transmit and receive module operable to provide a mid band transmit signal to the second antenna terminal and to receive a second mid band receive signal and a second high band receive signal from the second antenna terminal, the second high band receive signal having a frequency range that is greater than a frequency range of the second mid band receive signal.
2 . The radio frequency front end system of claim 1 wherein the first high band receive signal and the second high band receive signal are operable to support downlink multi-input and multi-output communications.
3 . The radio frequency front end system of claim 1 wherein the first mid band receive signal and the second mid band receive signal are operable to support downlink multi-input and multi-output communications.
4 . The radio frequency front end system of claim 1 wherein the first high band receive signal and the first mid band receive signal are operable to support carrier aggregation.
5 . The radio frequency front end system of claim 1 wherein the second mid band receive signal and the second high band receive signal are operable to support carrier aggregation.
6 . The radio frequency front end system of claim 1 wherein the first transmit and receive module is electrically coupled to the first antenna terminal without an intervening multiband handling element.
7 . The radio frequency front end system of claim 1 wherein the first transmit and receive module includes a first plurality of high band signal paths and a first plurality of mid band signal paths that are switch coupled to the first antenna terminal.
8 . The radio frequency front end system of claim 7 wherein the second transmit and receive module includes a second plurality of high band signal paths and a second plurality of mid band signal paths that are switch coupled to the second antenna terminal.
9 . The radio frequency front end system of claim 1 wherein the second transmit and receive module is electrically coupled to the second antenna terminal via a diplexer.
10 . The radio frequency front end system of claim 9 further comprising a third transmit and receive module electrically coupled to the second antenna terminal via the diplexer, the third transmit and receive module configured to provide a low band transmit signal to the second antenna terminal and to receive a low band receive signal from the second antenna terminal.
11 . The radio frequency front end system of claim 1 further comprising a first diversity antenna terminal and a first diversity module configured to receive a first high band diversity receive signal and a first mid band diversity receive signal from the first diversity antenna terminal.
12 . The radio frequency front end system of claim 11 further comprising a second diversity antenna terminal and a second diversity module configured to receive a second mid band diversity receive signal and a second high band receive signal from the second diversity antenna terminal.
13 . The radio frequency front end system of claim 1 wherein the mid band transmit signal, the first mid band receive signal, and the second mid band receive signal have frequencies between 1 GHZ and 2.3 GHZ, and the high band transmit signal, the first high band receive signal, and the second high band receive signal have frequencies greater than 2.3 GHZ.
14 . A wireless device comprising:
a plurality of primary antennas including a first antenna and second antenna;
a transceiver; and
a radio frequency front end system electrically coupled between the transceiver and the plurality of primary antennas, the radio frequency front end system including a first transmit and receive module operable to provide a high band transmit signal to the first antenna and to receive a first high band receive signal and a first mid band receive signal from the first antenna, the first high band receive signal having a frequency range that is greater than a frequency range of the first mid band receive signal, the radio frequency front end system further including a second transmit and receive module operable to provide a mid band transmit signal to the second antenna and to receive a second mid band receive signal and a second high band receive signal from the second antenna, the second high band receive signal having a frequency range that is greater than a frequency range of the second mid band receive signal.
15 . The wireless device of claim 14 wherein the first high band receive signal and the second high band receive signal are operable to support downlink multi-input and multi-output communications.
16 . The wireless device of claim 14 wherein the first mid band receive signal and the second mid band receive signal are operable to support downlink multi-input and multi-output communications.
17 . The wireless device of claim 14 wherein the first high band receive signal and the first mid band receive signal are operable to support carrier aggregation.
18 . The wireless device of claim 14 wherein the second mid band receive signal and the second high band receive signal are operable to support carrier aggregation.
19 . The wireless device of claim 14 wherein the first transmit and receive module is electrically coupled to the first antenna without an intervening multiband handling element.
20 . The wireless device of claim 14 wherein the mid band transmit signal, the first mid band receive signal, and the second mid band receive signal have frequencies between 1 GHz and 2.3 GHZ, and the high band transmit signal, the first high band receive signal, and the second high band receive signal have frequencies greater than 2.3 GHZ.