Wireless Circuitry for Simultaneously Receiving Radio-frequency Transmissions in Different Frequency Bands

Wireless communications circuitry, comprising:

• a first radio-frequency receiver configured to operate in a first communications band;
• a second radio-frequency receiver configured to operate in a second communications band;
• an antenna configured to receive at least a first data stream in a first communications band and a second data stream in a second communications band;
• a diplexer having a first port that is coupled to the first radio-frequency receiver, a second port that is coupled to the second radio-frequency receiver, and a third port that is coupled to the antenna;
• baseband circuitry configured to simultaneously receive the first data stream from the first radio-frequency receiver and the second data stream from the second radio-frequency receiver
• a radio-frequency transmitter operable to produce transmit signals;
• a switch that is coupled to the first port of the diplexer;
• a duplexer that is interposed between the diplexer and the first radio-frequency receiver and is configured to route the first data stream to the first radio-frequency receiver, wherein the duplexer is operable to pass the transmit signals from the radio-frequency transmitter to the switch;
• and
• a multiplexer that is interposed between the duplexer and the first radio-frequency receiver, wherein the duplexer is configured to route the first data stream to the first radio-frequency receiver through the multiplexer.

A method of operating wireless communications circuitry, comprising:

• receiving instructions from a base station that direct the wireless communications circuitry to prepare for simultaneous receipt of a first data stream in a first communications band and a second data stream in a second communications band;
• in response to receiving the instructions from the base station, configuring switching circuitry in the wireless communications circuitry to form a first signal path and a second signal path;
• with an antenna in the wireless communications circuitry, receiving the first and second data streams;
• with a diplexer in the wireless communications circuitry, routing the first data stream through the first signal path and routing the second data stream through the second signal path, wherein the first signal path comprises a first duplexer and the second signal path comprises a second duplexer;
• simultaneously receiving the first data stream at a first receiver coupled to the first signal path and the second data stream at a second receiver coupled to the second signal path;
• and
• with additional switching circuitry, routing transmit signals from a transmitter to the antenna via a selected one of the first and second duplexers.