Mitigation of transmitted energy on subcarriers by selectively filtering post-amplified waveforms
AssigneeT-Mobile Innovations LLC
InventorsSharath SOMASHEKAR, Deveshkumar Narendrapratap Rai
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Abstract
Embodiments of the present disclosure are directed to systems and methods for mitigating energy transmitted on subcarriers in a communications network. For example, a signal intended for transmission may be allocated with blanked Physical Resource Blocks (PRBs) and non-blanked PRBs. In order to reduce residual energy transmission within the blanked PRBs, a compensating waveform that destructively interferes with the residual energy within the blanked PRBs can be generated and summed with the signal before amplification and final transmission to an intended recipient.
Claims20
A system for mitigating energy transmitted on subcarriers in a communications network, the system comprising:
- a radio unit;
- a network device comprising one or more processors;
- and
- a non-transitory computer-readable media comprising executable instructions that, when executed, causes the network device to perform operations in the communications network, the executable instructions comprising the steps of:
- receiving scheduling data associated with an amplified waveform generated by the radio unit;
- determining, based on the scheduling data, that a first range of frequencies of the amplified waveform comprises blanked Physical Resource Blocks (PRBs);
- selectively filtering the amplified waveform to attenuate the first range of frequencies;
- and
- transmitting the filtered amplified waveform to an antenna array.
A non-transitory computer-readable media comprising executable instructions that, when executed, causes a network device comprising one or more processors to perform operations for mitigating energy transmitted on subcarriers in a communications network, the executable instructions comprising the steps of:
- receiving scheduling data associated with a waveform;
- determining, based on the scheduling data, that a first range of frequencies of the waveform comprises blanked Physical Resource Blocks (PRBs) and that a second range of frequencies of the waveform comprises non-blanked PRBs;
- amplifying the waveform using a power amplifier;
- and
- selectively filtering the amplified waveform to allow the second range of frequencies to pass through.
A method for mitigating energy transmitted on subcarriers in a communications network, the method comprising:
- generating a waveform, the waveform comprising a first plurality of Physical Resource Blocks (PRBs) and a second plurality of PRBs;
- amplifying the waveform using a power amplifier;
- and
- selectively filtering the amplified waveform such that the first plurality of PRBs is attenuated and the second plurality of PRBs passes through.
Dependencies are inferred from the claim text.