UE Uplink Adaptation for Base Station Sleep Modes in 5G NR
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing base station sleep modes to balance network capacity and energy consumption, particularly in high-density mobile broadband environments like 5G NR, leading to suboptimal UE adaptation and resource utilization.
Innovation Solution
Configuring UEs to adapt to different base station sleep modes on a per logical channel, medium access control entity, configured grant, or downlink semi-persistent scheduling basis, allowing them to determine and adjust uplink transmissions accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If base station enters sleep mode to reduce energy consumption, then energy efficiency is improved, but network capacity and communication reliability deteriorate
Solution Approach 1:
The base station dynamically transitions between wakeful and sleep states based on real-time traffic conditions and service requirements. The system adjusts the base station's operational state continuously, enabling it to be wakeful when traffic demand is high and enter sleep mode when traffic is low, thus resolving the contradiction between energy saving and network capacity.
Solution Approach 2:
The patent changes the operational parameters of the base station by introducing multiple sleep modes with different characteristics (e.g., light sleep, deep sleep) and configuring different uplink transmission adaptation strategies. By adjusting these parameters based on service types and traffic patterns, the system optimizes the balance between energy consumption and network capacity.
2Use of energy by moving object
If base station uses multiple sleep modes to optimize energy saving, then energy efficiency is improved, but device complexity and configuration difficulty increase
Solution Approach 1:
Different sleep modes and adaptation strategies are applied to different logical channels, services, or cell groups based on their specific requirements. High-priority services may use less aggressive sleep modes while lower-priority services can utilize deeper sleep modes, allowing localized optimization without requiring complex global configuration.
Solution Approach 2:
The patent segments the uplink transmission adaptation into multiple independent configurations corresponding to different logical channels or service types. Each segment can be independently configured and managed, reducing the overall complexity by breaking down the monolithic configuration into manageable pieces.
3Productivity
If UE adapts uplink transmissions to base station sleep modes, then resource utilization is improved, but adaptation complexity and processing overhead increase
Solution Approach 1:
The UE autonomously determines the base station's sleep state and automatically adapts its uplink transmissions accordingly based on pre-configured rules. The system enables the UE to self-manage the adaptation process without requiring complex real-time coordination or control signaling, thus improving resource utilization while keeping adaptation complexity manageable.
Solution Approach 2:
The network pre-configures the UE with multiple uplink transmission adaptation configurations corresponding to different base station sleep modes before the UE needs to adapt. This preliminary configuration reduces the real-time processing burden on the UE, as it only needs to select from pre-defined options rather than computing adaptations dynamically.
Data Source
AI summary
Apparatuses, systems, and methods for configuring different base station sleep modes/states, including triggering UE adaptation to the different base station sleep mode/states, e.g., in 5G NR systems and beyond. A UE may receive, from a base station, configurations for one or more base station sleep modes, e.g., on a per logical channel (LCH) basis, a per medium access control (MAC) entity configuration basis, a per configured grant (CG) configuration basis, and/or a per downlink (DL) semi-persistent scheduling (SPS) configuration basis. The UE determine, based on the one or more base station sleep modes, a base station sleep mode and determine an uplink transmission adaptation based on the determine base station sleep mode.