Method and apparatus for configuring frequency domain resources

The method optimizes frequency domain resource allocation for RedCap devices by configuring resources beyond their bandwidth limits, enhancing transmission performance and coverage while reducing waste.

JP7789953B2Active Publication Date: 2025-12-22BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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Patent Information

Application Number
JP2024559714
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2022-04-08
Publication Date
2025-12-22
Estimated Expiration
2042-04-08

AI Technical Summary

Technical Problem

The existing frequency domain resource allocation methods for reduced-capability (RedCap) terminal devices result in unused resources and reduced coverage due to limited bandwidth, especially with subcarrier spacing settings like 15KHz and 30KHz, affecting the support for higher aggregation levels and downlink transmission performance.

Method used

A method and apparatus for configuring frequency domain resources by determining frequency domain resources for a control resource set (CORESET) based on indication information, allowing resources outside the terminal device's bandwidth, aligning with the device's supported bandwidth, and optimizing REG and CCE mappings to support higher aggregation levels.

Benefits of technology

Enhances downlink channel transmission performance, improves coverage, and optimizes resource utilization by allowing the terminal device to support higher aggregation levels and reduce resource waste.

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Abstract

An embodiment of the present application discloses a method and apparatus for configuring frequency domain resources, by receiving first instruction information sent from a network device (201), and determining frequency domain resources occupied by a control resource set (CORESET) based on the first instruction information, and a first frequency domain resource among the frequency domain resources occupied by the CORESET is outside the bandwidth supported by the terminal device (202), and the frequency domain resources occupied by the CORESET of the terminal device are allowed to exceed the bandwidth supported by the terminal device, so that the terminal device can support a higher aggregation level as much as possible, effectively improve the transmission performance of the downlink channel, enhance the coverage of the downlink channel, improve the communication efficiency of the system, effectively reduce resource waste, and improve resource utilization rate.
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Citation Information

Patent Citations

  • METHOD AND APPARATUS FOR RECEIPT OF DOWNLINK CONTROL CHANNEL - Patent application

    JP2019522425A

  • User terminal and wireless communication method

    WO2020039823A1

  • Control resource set zero for reduced capability new radio devices

    WO2021211055A1