System and method for providing a direct current power to a time domain duplexing radio
AssigneeOutdoor Wireless Networks LLC
InventorKhalid W. Al-Mufti
Life of this patent
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Abstract
Techniques are provided for improving power efficiency of a multiphase direct current (DC)-DC voltage converter configured to provide DC power to a time domain duplexing radio by enabling a number of phases during a downlink subframe and disabling the number of phases on or after cessation of the downlink subframe.
Claims31
A method of more efficiently providing direct current (DC) power to a time division duplexing (TDD) radio, the method comprising:
- synchronizing timing of a multiphase DC-DC voltage converter with a time source external to the multiphase DC-DC voltage converter;
- determining a TDD frame configuration and a reference time;
- wherein the reference time is a time when a reference TDD frame commences in a past, a present, or a future, or another time from which such time can be derived;
- using at least one of the TDD frame configuration and the reference time, determining a start time and an end time of each downlink subframe in a TDD frame;
- using the determined start time of each downlink subframe in the TDD frame, during each downlink subframe, of the TDD frame, of the TDD radio, enabling at least one additional phase of the multiphase DC-DC voltage converter;
- and
- using the determined end time of each downlink subframe in the TDD frame, on or after cessation of each downlink subframe in the TDD frame, disabling the at least one additional phase of the multiphase DC-DC voltage converter.
A non-transitory computer readable medium storing a program causing at least one processor to execute a process to more efficiently provide direct current (DC) power to a time division duplexing (TDD) radio, the process comprising:
- synchronizing timing of a multiphase DC-DC voltage converter with a time source external to the multiphase DC-DC voltage converter;
- determining a TDD frame configuration and a reference time;
- wherein the reference time is a time when a reference TDD frame commences in a past, a present, or a future, or another time from which such time can be derived;
- using at least one of the TDD frame configuration and the reference time, determining a start time and an end time of each downlink subframe in a TDD frame;
- using the determined start time of each downlink subframe in the TDD frame, during each downlink subframe, of the TDD frame, of the TDD radio, causing enablement of at least one additional phase of the multiphase DC-DC voltage converter;
- and
- using the determined end time of each downlink subframe in the TDD frame, on or after cessation of each downlink subframe in the TDD frame, causing disablement of the at least one additional phase of the multiphase DC-DC voltage converter.
An apparatus that more efficiently provides direct current (DC) power to a time division duplexing (TDD) radio, the apparatus comprising:
- multiphase DC-DC voltage converter circuitry comprising more than one phase configured to be electrically coupled, through electrical conductors, to a DC power input of the TDD radio;
- and
- processing circuitry communicatively coupled to the multiphase DC-DC voltage converter circuitry, configured to be communicatively coupled to a time source external to the apparatus, and configured to:
- synchronize timing of the apparatus with the time source external to the apparatus;
- determine a TDD frame configuration and a reference time;
- wherein the reference time is a time when a reference TDD frame commences in a past, a present, or a future, or another time from which such time can be derived;
- using at least one of the TDD frame configuration and the reference time, determine a start time and an end time of each downlink subframe in a TDD frame;
- using the determined start time of each downlink subframe in the TDD frame, during each downlink subframe, of the TDD frame, of the TDD radio, enable at least one additional phase of the multiphase DC-DC voltage converter circuitry;
- and
- using the determined end time of each downlink subframe in the TDD frame, on or after cessation of each downlink subframe in the TDD frame, disable the at least one additional phase of the multiphase DC-DC voltage converter circuitry.
Dependencies are inferred from the claim text.