UE Processing Capability Timing for 5G NR Data and HARQ Scheduling
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Solution Overview
Problem
Existing wireless communication systems, particularly 5G NR, face challenges in efficiently scheduling data channels and hybrid automatic repeat request (HARQ) processes based on user equipment (UE) processing capabilities, leading to inefficiencies and potential data loss.
Innovation Solution
The system allows for scheduling data channels and HARQ processes by incorporating timing indications and HARQ capability indications from the UE, enabling precise alignment with the UE's processing timeline and capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the base station schedules data channels without considering UE processing capabilities, then scheduling simplicity is maintained, but scheduling accuracy deteriorates leading to potential data loss
Solution Approach 1:
The UE reports its processing capability indication to the base station in advance before data channel scheduling. This preliminary action allows the base station to obtain timing indication information about UE processing timelines, enabling accurate scheduling decisions that align with the UE's actual processing capabilities without adding complex real-time adjustments
Solution Approach 2:
The UE provides feedback through processing capability indication messages that contain timing indication information about its processing timeline. The base station uses this feedback to adjust scheduling decisions, ensuring data channels are scheduled at appropriate times that match the UE's processing abilities, thereby improving scheduling accuracy while maintaining systematic control
2Productivity
If the base station increases the number of HARQ processes beyond UE capability, then system throughput is improved, but data loss increases due to UE inability to process all processes
Solution Approach 1:
The base station dynamically adjusts the number of HARQ processes based on the UE's reported capability indication. When the UE indicates it can handle more processes, the base station increases throughput by allocating more processes; when the UE capability is limited, the base station reduces the number of processes to prevent data loss. This dynamic adjustment optimizes both throughput and reliability according to real-time UE capabilities
Solution Approach 2:
The system changes the parameter of HARQ process count based on UE capability indication. The base station receives timing indication information from the UE and adjusts the number of scheduled HARQ processes accordingly, transforming a static system into one that adapts parameters to match UE processing abilities, thereby preventing data loss while maximizing throughput
3Productivity
If the base station schedules data channels without timing indication, then scheduling simplicity is maintained, but resource utilization deteriorates due to mismatched UE processing timeline
Solution Approach 1:
The UE provides timing indication information in its processing capability indication message before scheduling occurs. This preliminary provision of timing information allows the base station to plan and execute data channel scheduling that precisely matches the UE's processing timeline, maximizing resource utilization without requiring complex real-time scheduling adjustments
Solution Approach 2:
The UE feeds back its processing timeline characteristics through the processing capability indication. The base station uses this feedback to align data channel scheduling with the UE's processing capabilities, ensuring optimal resource utilization. The feedback mechanism enables the base station to understand when the UE is ready to process data, eliminating wasted resources from premature or delayed scheduling
Data Source
AI summary
A configuration to allow for scheduling communication with a UE having associated characteristics based on a timing indication. The apparatus receives, from a UE, a timing indication associated with a bandwidth, a subcarrier spacing, or a waveform. The timing indication identifying a delay duration based on a processing timeline for the UE. The apparatus receives from the UE, or transmits to the UE, a first data channel having the bandwidth, the subcarrier spacing, or the waveform scheduled based on the timing indication. The first data channel is transmitted or received at a first time based on the timing indication.