UE Decoding Throughput Threshold for Subsequent Transmissions
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Solution Overview
Problem
Wireless communication systems face challenges in efficiently handling decoding throughputs that exceed peak thresholds, leading to overprovisioning of decoding hardware in user equipment (UE) during subsequent transmissions with lower code rates.
Innovation Solution
The UE determines whether to decode subsequent transmissions based on an effective throughput threshold, refraining from decoding if the throughput exceeds a predetermined decoding throughput threshold, which is calculated considering factors like maximum TB size, codeblock CRC lengths, and sub-carrier spacing, to prevent overprovisioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the base station transmits subsequent TBs at a lower code rate than initial TB transmissions, then the transmission reliability is improved, but the decoding throughput exceeds the peak decoding throughput causing hardware overprovisioning
Solution Approach 1:
The patent implements dynamic decoding throughput determination by having the UE calculate effective decoding throughput based on current transmission parameters (code rate, TB size, subcarrier spacing) and compare it against configured thresholds. This allows the system to adaptively adjust decoding behavior based on real-time conditions rather than using fixed hardware provisioning, resolving the contradiction between maintaining high transmission reliability and avoiding hardware overprovisioning.
Solution Approach 2:
The patent changes the parameter of decoding throughput by introducing dynamic calculation based on multiple parameters including code rate, transport block size, and subcarrier spacing. The network can configure different decoding throughput thresholds and the UE adjusts its decoding operations accordingly, allowing the system to handle variable throughput requirements without permanent hardware overprovisioning.
2Measurement precision
If the UE attempts to decode subsequent transmissions with effective throughput exceeding the threshold, then the decoding accuracy is maintained, but the resource efficiency deteriorates due to unnecessary decoding operations
Solution Approach 1:
The patent applies partial action by having the UE perform decoding operations selectively rather than always. When the calculated effective decoding throughput exceeds the configured threshold, the UE skips decoding operations. This partial execution of decoding maintains accuracy when needed while conserving resources when the throughput is unnecessarily high, resolving the contradiction between decoding accuracy and resource efficiency.
Solution Approach 2:
The patent implements feedback mechanisms where the UE calculates effective decoding throughput based on received transmission parameters and compares it against configured thresholds to determine whether to perform decoding. This feedback-driven decision process ensures decoding accuracy is maintained when throughput is appropriate while avoiding wasteful decoding operations when throughput exceeds requirements.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may determine to decode or refrain from decoding a transport block (TB) transmitted from a base station based on a decodability condition. The decodability condition may include whether an effective UE throughput for decoding the TB is greater than a predetermined decoding throughput threshold or not. If the effective UE throughput is greater than the predetermined decoding throughput threshold, the UE may refrain from decoding the TB. In some cases, the TB may be a subsequent transmission from the base station based on an initial transmission not being correctly decoded, and the UE may refrain from decoding the subsequent transmission.