Configurable modulation schemes at a wireless device

Configurable modulation schemes enable dynamic switching between BPSK and QPSK, addressing limitations in existing wireless communication devices by supporting higher coding rates and improving performance through flexible modulation adaptation.

WO2026054914A1 Publication Date: 2026-03-12QUALCOMM INC
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Patent Information

Application Number
PCT/US2025/040497
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-09-03
Filing Date
2025-08-04
Publication Date
2026-03-12

AI Technical Summary

Technical Problem

Wireless communication devices face limitations in dynamically switching between BPSK and QPSK modulation schemes, leading to reduced communication performance due to unsupported higher coding rates and lack of flexibility.

Method used

The implementation of configurable modulation schemes, allowing UEs to receive configuration information for extended BPSK modulation orders and dynamic switching between BPSK and QPSK, using an MCS table with overlapping or separate entries, and control signaling for selecting appropriate modulation schemes based on communication parameters.

Benefits of technology

Enhances communication performance by enabling dynamic adaptation and improved modulation flexibility, supporting higher coding rates and reducing peak-to-average power ratio.

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Abstract

Methods, systems, and devices for wireless communications are described. The described techniques provide for a user equipment (UE) to communicate using binary phase shift keying (BPSK) modulation according to extended coding rates. In some cases, the UE may receive configuration information that supports modulation orders for BPSK modulation extended to include modulation orders otherwise only configured for quadrature phase shift keying (QPSK) modulation. Further, the UE may support dynamic switching between BPSK and QPSK modulation. For example, the UE may transmit or receive control signaling indicating a modulation order for an uplink transmission, where the UE or a network entity may determine which modulation scheme and order to use according to communication parameters associated with the uplink transmission, the UE, or both.
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