17493815. LONG TRAINING FIELD (LTF) IN DISTRIBUTED TRANSMISSION simplified abstract (QUALCOMM Incorporated)

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LONG TRAINING FIELD (LTF) IN DISTRIBUTED TRANSMISSION

Organization Name

QUALCOMM Incorporated

Inventor(s)

Lin Yang of San Diego CA (US)

Bin Tian of San Diego CA (US)

Qifan Chen of Newark CA (US)

Youhan Kim of Saratoga CA (US)

LONG TRAINING FIELD (LTF) IN DISTRIBUTED TRANSMISSION - A simplified explanation of the abstract

This abstract first appeared for US patent application 17493815 titled 'LONG TRAINING FIELD (LTF) IN DISTRIBUTED TRANSMISSION

Simplified Explanation

Abstract Explanation

This patent application describes methods, devices, and systems for increasing the transmit power of wireless communication devices operating on power spectral density (PSD)-limited wireless channels. It specifically focuses on the design of Long Training Field (LTF) that supports distributed transmissions. The application proposes a technique where a transmitting device obtains a sequence of values representing an LTF and maps these values to a number of noncontiguous subcarrier indices of a wireless channel according to a distributed tone plan. The transmitting device then modulates the sequence of values on these subcarriers and maps them to the corresponding subcarrier indices. The sequence of values can be obtained based on the relative locations of the subcarrier indices in the wireless channel.

Bullet Points

  • Methods, devices, and systems for increasing transmit power of wireless communication devices on PSD-limited wireless channels.
  • Focuses on the design of Long Training Field (LTF) that supports distributed transmissions.
  • Transmitter obtains a sequence of values representing LTF and maps them to noncontiguous subcarrier indices according to a distributed tone plan.
  • Modulates the sequence of values on these subcarriers and maps them to the corresponding subcarrier indices.
  • Sequence of values can be obtained based on the relative locations of the subcarrier indices in the wireless channel.

Potential Applications

  • Wireless communication devices operating on PSD-limited wireless channels.
  • Increasing the transmit power of wireless devices.
  • Improving the efficiency and performance of wireless communication systems.
  • Enhancing the reliability and range of wireless transmissions.

Problems Solved

  • Overcoming power spectral density limitations in wireless communication devices.
  • Enabling higher transmit power without violating regulatory constraints.
  • Addressing the challenges of distributed transmissions in wireless communication systems.
  • Optimizing the allocation and utilization of subcarrier indices in a wireless channel.

Benefits

  • Increased transmit power for wireless communication devices.
  • Improved signal strength and coverage range.
  • Enhanced reliability and performance of wireless transmissions.
  • Efficient utilization of subcarrier indices in a wireless channel.


Original Abstract Submitted

This disclosure provides methods, devices and systems for increasing the transmit power of wireless communication devices operating on power spectral density (PSD)-limited wireless channels. Some implementations more specifically relate to LTF designs that support distributed transmissions. In some aspects, a transmitting device may obtain a sequence of values representing an LTF of a PPDU and may map the sequence of values to a number (N) of noncontiguous subcarrier indices of a plurality of subcarrier indices spanning a wireless channel according to a distributed tone plan. In some implementations, the transmitting device may modulate the sequence of values on N tones, representing a logical RU, and map the N tones to the N noncontiguous subcarrier indices, respectively. In some other implementations, the sequence of values may be obtained based on relative locations of the N noncontiguous subcarrier indices in the wireless channel.