Interference avoidance for subband full duplex
By configuring downlink and uplink bands to avoid harmonic frequencies, the method addresses self-interference in SBFD, improving communication efficiency and throughput in wireless systems.
WO2026155853A1PCT designated stage Publication Date: 2026-07-23QUALCOMM INC
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Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- QUALCOMM INC
- Filing Date
- 2025-12-11
- Publication Date
- 2026-07-23
AI Technical Summary
Technical Problem
In wireless communication systems, particularly in subband full duplex (SBFD) operations, self-interference due to harmonic frequencies causes degradation of communications, wasting signaling resources and reducing throughput, especially in UEs with inter-band carrier aggregation or dual connectivity.
Method used
A network entity indicates an uplink band and a downlink band where the downlink band does not include a harmonic frequency of the uplink band, allowing the UE to communicate messages without self-interference, thereby conserving signaling resources and increasing throughput.
Benefits of technology
This approach effectively avoids self-interference, conserves signaling resources, and enhances communication efficiency by increasing throughput in SBFD operations.
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Smart Images
Figure US2025059255_23072026_PF_FP_ABST
Abstract
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive information for an uplink band and a downlink band, where the downlink band does not include a harmonic frequency of a fundamental frequency of the uplink band. The UE may communicate a message using the uplink band or the downlink band. Numerous other aspects are described.
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