Software-defined filtering in a repeater

A repeater, comprising:

• a first antenna port;
• a second antenna port;
• a first first-direction analog signal amplification and filtering path associated with a first-direction frequency range and communicatively coupled to the first antenna port;
• a second first-direction analog signal amplification and filtering path associated with the first-direction frequency range and communicatively coupled to the second antenna port;
• a first-direction software-defined filter (SDF) communicatively coupled between the first first-direction analog signal amplification and filtering path and the second first-direction analog signal amplification and filtering path;
• a first second-direction analog signal amplification and filtering path associated with a second-direction frequency range and communicatively coupled to the first antenna port;
• a second second-direction analog signal amplification and filtering path associated with the second-direction frequency range and communicatively coupled to the second antenna port;
• and
• a second-direction SDF communicatively coupled between the first second-direction analog signal amplification and filtering path and the second second-direction analog signal amplification and filtering path;
• a second SDF in one or more amplification and filtering paths comprising:
• the first first-direction analog signal amplification and filtering path;
• or
• the second first-direction analog signal amplification and filtering path;
• or
• the first second-direction analog signal amplification and filtering path;
• or
• the second second-direction analog signal amplification and filtering path,
• wherein the first-direction SDF and the second-direction SDF are configured to down-convert, digitally filter, and up-convert a first signal in a first band;
• and
• the second SDF is configured to down-convert, digitally filter, and up-convert a second signal in a second band on the one or more amplification and filtering paths;
• wherein the second SDF includes an input path and an output path, and one or more of:
• a digital signal processor (DSP), a digital-to-analog converter (DAC), an analog-to-digital converter (ADC), a gain block, a multiplexer, a demultiplexer, a log power detector, a power amplifier, one or more digital filters or one or more analog filters.

A repeater, comprising:

• a first antenna port;
• a second antenna port;
• a first uplink analog signal amplification and filtering path associated with an uplink frequency range and communicatively coupled to the first antenna port;
• a second uplink analog signal amplification and filtering path associated with the uplink frequency range and communicatively coupled to the second antenna port;
• a first downlink analog signal amplification and filtering path associated with a downlink frequency range and communicatively coupled to the second antenna port;
• a second downlink analog signal amplification and filtering path associated with the downlink frequency range and communicatively coupled to the first antenna port;
• an uplink software-defined filter (SDF) communicatively coupled between the first uplink analog signal amplification and filtering path and the second uplink analog signal amplification and filtering path, wherein the uplink SDF includes digital filtering at or near baseband and is operable to create a dynamically adjustable passband for a plurality of uplink frequency ranges;
• a downlink SDF communicatively coupled between the first downlink analog signal amplification and filtering path and the second downlink analog signal amplification and filtering path, wherein the downlink SDF includes digital filtering at or near baseband and is operable to create a dynamically adjustable passband for a plurality of downlink frequency ranges;
• and
• a controller configured to:
• determine a power measurement of an uplink analog signal for an uplink frequency range in the plurality of uplink frequency ranges, wherein the power measurement is received from the uplink SDF or the power measurement is received from an external circuit that performs the power measurement of the uplink analog signal;
• determine an automatic gain control (AGC) level for the uplink analog signal based on the power measurement of the uplink analog signal;
• and
• apply the AGC level to the uplink analog signal.

A repeater, comprising:

• a first antenna port;
• a second antenna port;
• a first uplink analog signal amplification and filtering path associated with an uplink frequency range and communicatively coupled to the first antenna port;
• a second uplink analog signal amplification and filtering path associated with the uplink frequency range and communicatively coupled to the second antenna port;
• a first downlink analog signal amplification and filtering path associated with a downlink frequency range and communicatively coupled to the second antenna port;
• a second downlink analog signal amplification and filtering path associated with the downlink frequency range and communicatively coupled to the first antenna port;
• an uplink software-defined filter (SDF) communicatively coupled between the first uplink analog signal amplification and filtering path and the second uplink analog signal amplification and filtering path, wherein the uplink SDF includes digital filtering at or near baseband and is operable to create a dynamically adjustable passband for a plurality of uplink frequency ranges;
• a downlink SDF communicatively coupled between the first downlink analog signal amplification and filtering path and the second downlink analog signal amplification and filtering path, wherein the downlink SDF includes digital filtering at or near baseband and is operable to create a dynamically adjustable passband for a plurality of downlink frequency ranges;
• wherein:
• the dynamically adjustable passband is for the plurality of uplink frequency ranges, and a controller is configured to determine automatic gain control (AGC) levels for the plurality of uplink frequency ranges on a per-frequency range basis by adjusting the dynamically adjustable passband created using the uplink SDF;
• the dynamically adjustable passband is for the plurality of downlink frequency ranges, and the controller is configured to determine automatic gain control (AGC) levels for the plurality of downlink frequency ranges on a per-frequency range basis by adjusting the dynamically adjustable passband created using the downlink SDF;
• and
• wherein the plurality of uplink frequency ranges are uplink channels and the plurality of downlink frequency ranges are downlink channels.