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US 12,016,042 B2Granted
Dynamic switching between uplink waveforms
AssigneeT-Mobile USA, Inc.
InventorsWafik Abdel Shahid, Ming Shan Kwok
Life of this patent
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Abstract
Techniques for dynamically switching between uplink waveforms are discussed herein. For example, data received at a base station may provide the base station with information associated with a user equipment (UE). The base station may select a waveform for the UE to utilize during uplink transmissions in order to maximize performance of the UE. In some examples, the base station may select a DFT-s-OFDM or a CP-OFDM for the UE to utilize during the uplink transmission. The base station may determine which waveform to utilize based on data received from the UE, such as location data, signal data, and/or UE state data.
Claims16
A method comprising:
- receiving, at a base station, first uplink data sent from a user equipment (UE);
- determining, based at least in part on the first uplink data, location data, signal data, and UE state data;
- inputting the location data, the signal data, and the UE state data to a machine learned model, wherein the machine learned model associates a first uplink waveform with data meeting at least one of a plurality of thresholds and a second uplink waveform with data that does not meet at least one of the plurality of the thresholds, and the first uplink waveform is one of a Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing (DFT-s-OFDM) waveform and a Cyclic Prefix OFDM (CP-OFDM) waveform and the second uplink waveform is the other of DFT-s-OFDM and CP-OFDM;
- receiving, from the machine learned model, an uplink waveform for a transmission associated with the UE, wherein the uplink waveform is one of the first uplink waveform and the second uplink waveform and is determined by the machine learned model by a comparison of the location data, the signal data, and the UE state data to the plurality of thresholds;
- sending an indication of the uplink waveform to the UE in a Physical Downlink Control Channel (PDCCH);
- and
- receiving second uplink data sent from the UE in accordance with the uplink waveform.
4 more elements
A system comprising:
- one or more processors;
- and
- one or more non-transitory computer-readable media storing computer-executable instructions that, when executed, cause the one or more processors to perform operations comprising:
- receiving, at a base station, first uplink data sent from a user equipment (UE);
- determining, based at least in part on the first uplink data, multiple ones of location data, signal data, or UE state data;
- determining, based at least in part on the multiple ones of the location data, the signal data, or the UE state data, an uplink waveform for a transmission associated with the UE, wherein:
- the uplink waveform is one of a first uplink waveform and a second uplink waveform and is determined by a comparison of the multiple ones of the location data, the signal data, or the UE state data to a plurality of thresholds,
- the first uplink waveform is associated with data meeting at least one threshold of the plurality of thresholds and the second uplink waveform is associated with data that does not meet at least one threshold of the plurality of thresholds, and
- the first uplink waveform is one of a Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing (DFT-s-OFDM) waveform and a Cyclic Prefix OFDM (CP-OFDM) waveform and the second uplink waveform is the other of DFT-s-OFDM and CP-OFDM;
- sending an indication of the uplink waveform to the UE in a Physical Downlink Control Channel (PDCCH);
- and
- receiving second uplink data sent from the UE in accordance with the uplink waveform.
9 more elements
A user equipment (UE) comprising:
- one or more processors;
- and
- one or more non-transitory computer-readable media storing computer-executable instructions that, when executed, cause the one or more processors to perform operations comprising:
- sending, to a base station, first uplink data using a first uplink waveform, wherein the first uplink data comprises multiple ones of location data, signal data, or UE state data;
- receiving an indication to switch to a second uplink waveform via a Physical Downlink Control Channel (PDCCH), wherein the indication is determined by the base station based on a comparison of the first uplink data to a plurality of thresholds of a machine learned model;
- and
- sending, to the base station, second uplink data using the second uplink waveform, wherein the first uplink waveform is one of a Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing (DFT-s-OFDM) waveform and a Cyclic Prefix OFDM (CP-OFDM) waveform and the second uplink waveform is the other of DFT-s-OFDM and CP-OFDM.
4 more elements
Dependencies are inferred from the claim text.