18036315. WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION METHOD, AND RECEIVING DEVICE simplified abstract (Nippon Telegraph and Telephone Corporation)

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WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION METHOD, AND RECEIVING DEVICE

Organization Name

Nippon Telegraph and Telephone Corporation

Inventor(s)

Hayato Fukuzono of Musashino-shi (JP)

Keita Kuriyama of Musashino-shi (JP)

Masafumi Yoshioka of Musashino-shi (JP)

Toshifumi Miyagi of Musashino-shi (JP)

WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION METHOD, AND RECEIVING DEVICE - A simplified explanation of the abstract

This abstract first appeared for US patent application 18036315 titled 'WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION METHOD, AND RECEIVING DEVICE

Simplified Explanation

The patent application describes a transmission device and a receiving device that work together to improve communication channel response and remove interference in a transmission beam.

  • The transmission device generates a training signal for the receiving device to estimate the communication channel response.
  • The transmission device then forms a transmission beam using a calculated transmission weight to remove interstream interference.
  • The receiving device receives the training signal and estimates the communication channel response using a communication channel estimation unit.
  • The receiving device combines multiple communication channel responses for each stream, removing interstream interference.
  • The receiving device performs an equalization process to remove intersymbol interference for each stream using a calculated reception weight.

Potential Applications

  • Wireless communication systems
  • Satellite communication systems
  • Cellular networks
  • Internet of Things (IoT) devices

Problems Solved

  • Interference between multiple streams in a transmission beam
  • Intersymbol interference in the received signal
  • Inaccurate estimation of communication channel response

Benefits

  • Improved communication channel response estimation
  • Removal of interstream interference
  • Reduction of intersymbol interference
  • Enhanced overall transmission quality


Original Abstract Submitted

A transmission device includes a training signal generation unit that generates a predetermined existing signal used for a receiving device to estimate a communication channel response and a transmission beam-forming unit that forms a transmission beam for removing interstream interference with a transmission weight calculated based on the communication channel response estimated by the receiving device. The receiving device includes a communication channel estimation unit that receives the existing signal and estimates a communication channel response, a combination unit that combines a plurality of communication channel responses for each stream estimated with the existing signal from which the interstream interference has been removed, and an equalization unit that performs an equalization process of removing intersymbol interference for each stream with the reception weight calculated based on the communication channel responses combined by the combination unit.

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