Downlink receiver channel isolation

A transceiver configured to transmit a first signal via an antenna communicatively coupled to a transmitter signal path and receive a second signal at a receiver signal path via the antenna, comprising:

• an electrical balance duplexer configured to isolate the receiver signal path from the transmitter signal path based at least in part on an electrical balance between the receiver signal path and the transmitter signal path;
• analog interference cancellation circuitry configured to sample the first signal at the transmitter signal path and to output a third signal at first output circuitry of the analog interference cancellation circuitry and a fourth signal at second output circuitry of the analog interference cancellation circuitry based at least in part on the first signal;
• first adder circuitry communicatively coupled to the first output circuitry and a first downlink receiver channel of the receiver signal path, wherein the first downlink receiver channel is configured to receive a first portion of the second signal, and wherein the first adder circuitry is configured to adjust the first portion of the second signal based at least in part on the third signal;
• and
• second adder circuitry communicatively coupled to the second output circuitry and to second downlink receiver channel of the receiver signal path, wherein the first downlink receiver channel is configured to receive a second portion of the second signal, and wherein the second adder circuitry is configured to adjust the second portion of the second signal based at least in part on the fourth signal.

A method of operating a transceiver, comprising:

• transmitting, via a transmitter signal path of the transceiver, a first signal at an antenna communicatively coupled to the transmitter signal path;
• receiving, via a receiver signal path of the transceiver, a second signal at the antenna, wherein the antenna is communicatively coupled to the receiver signal path, and wherein the second signal comprises a downlink carrier aggregation signal comprising a plurality of component carriers;
• reducing, using an electrical balance duplexer of the transceiver, a first noise corresponding to the first signal in the receiver signal path;
• and
• reducing, using analog interference cancellation circuitry coupled downstream from an amplifier coupled to an output from the electrical balance duplexer, a second noise corresponding to the first signal in the receiver signal path, wherein reducing the second noise comprises:
• reducing, at a first downlink receiver channel of the receiver signal path, a first component of the second noise, wherein the first downlink receiver channel is configured to receive a first component carrier of the plurality of component carriers;
• and
• reducing, at a second downlink receiver channel of the receiver signal path, a second component of the second noise, wherein the second downlink receiver channel is configured to receive a second component carrier of the plurality of component carriers different from the first component carrier.