Automatic gain control and filtering techniques for use in on-channel repeater

A method to facilitate feedback loop cancellation deploying automatic gain control operations in a digital repeater environment comprising:

• receiving n blocks of i bins of data for an uplink channel and downlink channel in parallel;
• determining total isolation of the system for block n at each bin i;
• determining total allowable gain for each bin i from the total isolation;
• determining estimate gain for each bin i;
• identifying the minimum level of gain for each bin i among available gain values and storing the minimum gain value;
• and
• producing an automatic gain control and filtered array for the uplink and downlink by multiplying the identified minimum gain level with the bin i of the digital filter.

A computer readable storage medium having stored thereon a set of instructions, which, when executed by a machine, cause the machine to perform acts, the acts comprising:

• receiving n blocks of i bins of data for an uplink channel and downlink channel in parallel;
• determining total isolation of the system for block n at each bin
• determining total allowable gain for each bin i from the total isolation;
• determining estimate gain for each bin i;
• identifying the minimum level of gain for each bin i among available gain values and storing the minimum gain value;
• and
• producing an automatic gain control and filtered array for the uplink and downlink by multiplying the identified minimum gain level with the bin i of the digital filter.

A processor, comprising a memory having stored thereon computer executable instructions to cause the processor to performing at least the following acts:

• receiving n blocks of i bins of data for an uplink channel and downlink channel in parallel;
• determining total isolation of the system for block n at each bin idetermining total allowable gain for each bin i from the total isolation;
• determining estimate gain for each bin i;
• identifying the minimum level of gain for each bin i among available gain values and storing the minimum gain value;
• and
• producing an automatic gain control and filtered array for the uplink and downlink by multiplying the identified minimum gain level with the bin i of the digital filter.

A system that facilitates feedback loop cancellation in a repeater environment comprising elements configured to:

• receive n blocks of i bins of data for an uplink channel and downlink channel in parallel;
• determine total isolation of the system for block n at each bin i;
• determine total allowable gain for each bin i from the total isolation;
• determine estimate gain for each bin i;
• identify the minimum level of gain for each bin i among available gain values and storing the minimum gain value;
• and
• produce an automatic gain control and filtered array for the uplink and downlink by multiplying the identified minimum gain level with the bin i of the digital filter.