UE Decodability Threshold for Wireless Throughput Management
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Solution Overview
Problem
Wireless communication systems face challenges in handling decoding throughputs that exceed peak decoding throughput, leading to overprovisioning of decoding hardware, especially when subsequent transmissions have lower code rates or shorter durations, resulting in inefficient resource utilization.
Innovation Solution
Implementing a decodability criterion that allows user equipment (UE) to refrain from decoding subsequent transmissions if the decoding throughput exceeds a predetermined threshold, based on factors such as maximum transport block size, codeblock-level and TB-level CRC lengths, coding rates, and subcarrier spacing, to prevent overprovisioning and optimize resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the base station transmits subsequent TBs at a lower code rate, then the transmission reliability is improved, but the decoding throughput exceeds the peak decoding throughput causing hardware overprovisioning
Solution Approach 1:
The patent applies dynamics by making the UE decoding capability adjustable and configurable. The UE can be configured with different peak decoding throughput values through RRC signaling, allowing the system to adapt the decoding hardware requirements dynamically based on the actual transmission conditions and code rates, rather than being fixed at an overprovisioned level
Solution Approach 2:
The patent changes the parameter of peak decoding throughput from a fixed value to a configurable value. By allowing the network to configure the UE's peak decoding throughput parameter through RRC signaling based on UE capability reporting, the system can adjust this parameter to match actual transmission requirements, preventing both overprovisioning and underprovisioning
2Reliability
If the UE decodes all subsequent transmissions regardless of throughput, then the data reception completeness is improved, but the resource utilization efficiency deteriorates due to overprovisioning
Solution Approach 1:
The patent applies partial action by allowing the UE to selectively decode only those subsequent transmissions that fall within its configured peak decoding throughput capability. The UE compares the actual decoding throughput of each subsequent transmission against its configured peak value and decides whether to decode, performing partial decoding actions rather than attempting to decode all transmissions regardless of resource efficiency
Solution Approach 2:
The patent implements feedback through the UE capability reporting mechanism. The UE reports its decoding throughput capabilities to the base station, which then uses this feedback information to configure appropriate peak decoding throughput values via RRC signaling, creating a closed-loop system that optimizes resource utilization based on actual UE capabilities
Data Source
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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.