Uplink Transmission Mode Selection in Wireless Networks
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Solution Overview
Problem
Current wireless communication networks face inefficiencies in managing uplink data transmissions, particularly in positioning applications, where existing criteria based on RSRP and Buffer Status Report may not be sufficient, leading to suboptimal resource utilization and power consumption.
Innovation Solution
A method for a node to determine whether a UE should use inactive mode-based Small Data Transmission (SDT) or connected mode by obtaining criteria such as battery life, QoS, mobility, and coverage information, allowing for optimized resource allocation and power management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If existing criteria based on RSRP and Buffer Status Report are used to manage uplink data transmissions, then the management process is simple, but resource utilization and power consumption are suboptimal
Solution Approach 1:
The patent changes the parameters used for transmission mode determination from traditional RSRP and Buffer Status Report to include additional parameters such as battery life, QoS requirements, mobility state, and coverage information. This allows for more comprehensive and optimized decision-making regarding transmission modes, improving resource utilization while managing complexity through structured parameter evaluation.
2Reliability
If UE uses connected mode for uplink data transmission, then transmission reliability is improved, but power consumption increases
Solution Approach 1:
The patent implements dynamic transmission mode selection where the UE can switch between inactive mode-based SDT and connected mode based on real-time evaluation of multiple parameters including battery life, QoS, mobility, and coverage. This dynamic approach allows the system to use lower-power inactive mode when conditions permit while transitioning to connected mode when reliability is critical, optimizing the trade-off between power consumption and transmission reliability.
Solution Approach 2:
The patent introduces a multi-parameter decision framework that considers battery life, QoS, mobility state, and coverage information to dynamically determine the appropriate transmission mode. This allows the system to adapt to changing conditions and select the most energy-efficient mode while maintaining adequate transmission reliability.
3Use of energy by moving object
If UE uses inactive mode-based SDT for uplink data transmission, then power consumption is reduced, but transmission reliability may deteriorate
Solution Approach 1:
The patent uses a comprehensive parameter evaluation framework that includes QoS requirements, mobility state, coverage information, and battery life to determine when inactive mode-based SDT is appropriate. By considering QoS and coverage conditions specifically, the system ensures that inactive mode is only selected when it will not compromise transmission reliability below acceptable thresholds.
Solution Approach 2:
The patent implements dynamic mode selection where the UE can transition between inactive mode and connected mode based on real-time parameter evaluation. This allows the system to start in lower-power inactive mode when conditions are favorable and dynamically transition to connected mode if reliability requirements are not met, ensuring reliable transmission while minimizing power consumption.
4Measurement precision
If more criteria are obtained for transmission mode determination, then decision accuracy is improved, but signaling overhead increases
Solution Approach 1:
The patent leverages existing multi-functional parameters that serve multiple purposes. For example, QoS parameters are used both for QoS management and for transmission mode determination, mobility state information is used for both mobility management and transmission mode selection, and coverage information serves both coverage optimization and mode determination. This approach improves decision accuracy by utilizing comprehensive parameter information while minimizing additional signaling overhead by reusing existing parameter sets.
Data Source
AI summary
A method performed by a node for handling an upcoming transmission of uplink data between a first User Equipment (UE) and a network node in a wireless communications network is provided. The node obtains (501) one or more criteria relating to characteristics of any one or more out of: A UE and a transmission of uplink data between that UE and the network node. The node obtains (502) characteristics of any one or more out of: the first UE and the upcoming transmission of uplink data for the first UE. The node obtains (503) a determination by determining whether the first UE shall use: (i) inactive mode based Small Data Transmission, SDT, or (ii) connected mode, the for the upcoming transmission of uplink data, based on: The one or more criteria, and the obtained characteristics of any one or more out of: the first UE and the upcoming transmission of uplink data.