18236685. Method And Apparatus For Low Power Wake-Up Signal Design simplified abstract (MEDIATEK INC.)

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Method And Apparatus For Low Power Wake-Up Signal Design

Organization Name

MEDIATEK INC.

Inventor(s)

Chien-Chun Cheng of Hsinchu City (TW)

Wei-De Wu of Hsinchu City (TW)

Yi-Ju Liao of Hsinchu City (TW)

Method And Apparatus For Low Power Wake-Up Signal Design - A simplified explanation of the abstract

This abstract first appeared for US patent application 18236685 titled 'Method And Apparatus For Low Power Wake-Up Signal Design

Simplified Explanation

The patent application describes various solutions for low-power wake-up signal (LP-WUS) design in mobile communications. The apparatus receives a LP-WUS configuration from a network node, generates a LP-WUS based on the configuration, and determines whether to wake up based on the LP-WUS. The LP-WUS is generated through a transformation of M-bit on-off keying (OOK) in a time domain, using a discrete Fourier transform (DFT) or least square operation. K samples are generated from the M bits with signal modification or truncation, and the LP-WUS is generated through an inverse fast Fourier transform (IFFT) operation. The size of the IFFT operation is denoted by K, and the LP-WUS with N subcarriers is generated where N is less than or equal to K.

  • LP-WUS design for mobile communications
  • Apparatus receives LP-WUS configuration from network node
  • LP-WUS generated based on configuration
  • LP-WUS determined whether to wake up
  • LP-WUS generated through transformation of M-bit OOK
  • Transformation using DFT or least square operation
  • K samples generated from M bits with signal modification or truncation
  • LP-WUS generated through IFFT operation
  • N subcarriers in LP-WUS where N <= K

Potential Applications

The technology described in the patent application could be applied in various mobile communication devices and network nodes to improve power efficiency and wake-up signal design.

Problems Solved

1. Efficient design of low-power wake-up signals in mobile communications. 2. Optimization of wake-up signal configurations for user equipment and network nodes.

Benefits

1. Improved power efficiency in mobile communication devices. 2. Enhanced performance of wake-up signals for quicker response times. 3. Streamlined communication processes between user equipment and network nodes.

Potential Commercial Applications

Optimized LP-WUS design could be implemented in smartphones, IoT devices, and other mobile communication equipment to enhance battery life and overall efficiency.

Possible Prior Art

There may be prior art related to wake-up signal design in mobile communications, such as patents or research papers on low-power signal processing techniques or efficient wake-up signal generation methods.

Unanswered Questions

How does this LP-WUS design compare to existing wake-up signal technologies in terms of power efficiency and signal reliability?

The patent application does not provide a direct comparison with existing wake-up signal technologies. Further research or testing may be needed to evaluate the performance of this LP-WUS design in comparison to other methods.

What potential challenges or limitations could arise in implementing this LP-WUS design in real-world mobile communication systems?

The patent application does not address potential challenges or limitations in implementing this LP-WUS design. Factors such as compatibility with existing systems, scalability, and cost-effectiveness could be important considerations in practical deployment.


Original Abstract Submitted

Various solutions for low-power wake-up signal (LP-WUS) design with respect to user equipment and network node in mobile communications are described. An apparatus may receive a LP-WUS configuration from a network node. The apparatus may receive a LP-WUS based on the LP-WUS configuration from the network node. The apparatus may determine whether to wake up according to the LP-WUS. The LP-WUS with N subcarriers (SCs) is generated through a transformation of M-bit on-off keying (OOK) in a time domain. The transformation is a discrete Fourier transform (DFT) or least square operation. K samples are generated from the M bits with a signal modification or a signal truncation. The LP-WUS is generated through an inverse fast Fourier transform (IFFT) operation. The K is a size of the IFFT operation of cyclic-prefix orthogonal frequency-division multiple access (CP-OFDMA). The N is less than or equal to the K.