Communication device, base station, and communication method

The described configuration allows for dynamic switching of uplink signal waveforms in a 5G mobile communication system using DCI and MAC CE, addressing the lack of lower-layer signaling mechanisms in 3GPP specifications, enhancing communication efficiency and reducing delays.

JP7768400B2Active Publication Date: 2025-11-12DENSO CORP
View PDF 4 Cites 0 Cited by

Patent Information

Application Number
JP2024540405
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2022-08-08
Filing Date
2023-08-01
Publication Date
2025-11-12
Estimated Expiration
2043-08-01

AI Technical Summary

Technical Problem

Existing 3GPP technical specifications lack a specific mechanism for dynamically switching the waveform of uplink signals using signaling in a layer lower than the RRC layer, leading to potential delays and inappropriate timing in applying transform precoders, which can hinder effective communication between base stations and user equipment.

Method used

A communication device and base station configuration that enables dynamic switching of uplink signal waveforms using downlink control information (DCI) or medium access control elements (MAC CE) to determine the application of transform precoders, specifying target frequency resources and parameters for flexible control, thereby allowing timely and appropriate waveform adjustments.

Benefits of technology

Enables dynamic and appropriate switching of uplink signal waveforms, ensuring efficient communication by reducing processing delays and improving frequency utilization efficiency, power consumption, and coverage area, while maintaining robustness against multipath interference.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 0007768400000001
    Figure 0007768400000001
  • Figure 0007768400000002
    Figure 0007768400000002
  • Figure 0007768400000003
    Figure 0007768400000003
Patent Text Reader

Abstract

A communication device (100) comprises a control unit (120) and a reception unit (112) that receives, from a base station (210), downlink control information (DCI) or a media access control element (MAC CE) including transform precoder information indicating whether or not to apply a transform precoder. The control unit determines a target frequency resource as the target of the transform precoder information, and determines whether, on the basis of the transform precoder information, the transform precoder is to be applied to the transmission of an uplink signal in the target frequency resource.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Sending and receiving power saving commands

    JP2022529889A

  • Control information obtaining method and apparatus

    US20200068539A1

  • Techniques for resource block allocation in wireless communications

    US20200374852A1

  • Terminal device, base station device, and communication method

    WO2022153966A1