Configured Grant Transmission for Uplink Jitter Reduction
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Solution Overview
Problem
Jitter in uplink data transmission by configured grant (CG) physical uplink shared channels (PUSCHs) introduces uncertainty in start time, leading to inefficient power consumption as network nodes blindly monitor each transmission occasion, including those without data, reducing the overall efficiency of data transmission.
Innovation Solution
Implementing multiple configured grant (CG) configurations with different transmission occasion densities, allowing the UE to transmit first PUSCH data in a sparse configuration and second PUSCH data in a denser configuration, enabling the network node to switch and reduce power consumption by monitoring fewer occasions initially.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the network node blindly monitors each PUSCH transmission occasion to ensure reliable data reception, then the reliability of data transmission is improved, but the power consumption increases due to monitoring occasions without data
Solution Approach 1:
The patent segments the monitoring process into two phases: initial sparse monitoring using first CG configurations and subsequent dense monitoring using second CG configurations. This segmentation allows the network node to reduce power consumption during the initial phase while maintaining reliability through the second phase, resolving the contradiction between reliability and power consumption.
Solution Approach 2:
The patent implements dynamic switching between different CG configurations based on transmission conditions. The network node transitions from sparse to dense monitoring configurations dynamically, optimizing the balance between power consumption and reliability according to actual data transmission needs.
2Use of energy by stationary object
If the network node uses sparse CG configurations with fewer transmission occasions, then the power consumption is reduced, but the data transmission speed decreases due to fewer monitoring occasions
Solution Approach 1:
The patent employs periodic action by alternating between sparse and dense CG configurations in a structured sequence. The system uses periodic sparse monitoring initially, then transitions to periodic dense monitoring, achieving both power savings during sparse phases and high-speed transmission during dense phases.
Solution Approach 2:
The patent applies preliminary action by using sparse CG configurations in the initial transmission phase before switching to dense configurations. This preliminary sparse monitoring reduces immediate power consumption while the system prepares for subsequent high-speed dense transmission, optimizing the trade-off between power and speed.
3Speed
If the network node switches to denser CG configurations after detecting data, then the data transmission speed is improved, but the complexity of managing multiple configurations increases
Solution Approach 1:
The patent implements feedback mechanisms where the network node monitors transmission conditions and uses this feedback to determine when to switch between CG configurations. This feedback-driven approach automates the configuration management process, reducing the operational complexity despite having multiple configurations available.
Solution Approach 2:
The patent manages complexity by systematically changing key parameters of CG configurations (such as transmission occasion density) rather than managing all configuration details simultaneously. This parameter-focused approach simplifies the management process while enabling speed optimization through configuration switching.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, in a first physical uplink shared channel (PUSCH) transmission occasion of a first configured grant (CG) configuration, first PUSCH data of a packet. The UE may transmit, in a second PUSCH transmission occasion of a second CG configuration, second PUSCH data of the packet. Numerous other aspects are described.