Uplink Data Flow Configuration for Dual Connectivity
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Solution Overview
Problem
In a 5G network environment with dual connectivity, user equipment (UE) faces challenges in adapting to changing conditions while transmitting uplink data between LTE and NR cells, leading to deteriorating connections and throughput issues as it moves within coverage areas.
Innovation Solution
A method and system that determine the Reference Signal Received Power (RSRP) of both LTE and NR cells and dynamically assign uplink data flow configurations based on these measurements, using threshold adjustments to optimize data transmission and prevent errors, potentially employing machine learning for adaptive threshold adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If UE transmits uplink data between LTE and NR cells in a non-standalone network, then 5G services can be provided with LTE core network support, but connection stability deteriorates as UE moves throughout the network environment
Solution Approach 1:
The patent implements dynamic data flow configuration that adapts to changing channel conditions. The system continuously monitors RSRP values and adjusts uplink data transmission parameters in real-time, transitioning from static to dynamic configuration to maintain connection stability while preserving dual connectivity benefits.
Solution Approach 2:
The system employs feedback mechanisms by measuring RSRP values from both LTE and NR cells and using these measurements to adjust data flow configurations. This closed-loop approach ensures that transmission parameters are continuously optimized based on actual channel conditions, resolving the contradiction between adaptability and reliability.
2Adaptability or versatility
If UE connects to both LTE and NR cells simultaneously, then network coverage and service capability are enhanced, but throughput deteriorates due to changing transmission conditions during movement
Solution Approach 1:
The patent applies dynamic configuration of uplink data flows based on real-time RSRP measurements. When UE moves and channel conditions change, the system adjusts transmission parameters dynamically to maintain optimal throughput while preserving enhanced network coverage through dual connectivity.
Solution Approach 2:
The system changes transmission parameters (data flow configuration) based on RSRP measurements. By adjusting parameters such as which cell handles uplink data transmission based on signal strength measurements, the system maintains throughput performance while preserving the coverage benefits of dual connectivity.
3Device complexity
If static data flow configuration is used for uplink transmission, then system complexity is reduced, but connection quality deteriorates under changing channel conditions
Solution Approach 1:
The patent implements feedback-based dynamic configuration where RSRP measurements feed into data flow configuration decisions. This feedback mechanism improves connection quality under changing conditions while adding only minimal complexity compared to static configuration.
Data Source
AI summary
A method, system and non-transitory computer-readable medium are provided. The method includes determining that a user equipment (UE) is camped on a new radio (NR) cell and to a long term evolution (LTE) cell, determining a reference signal received power (RSRP) of the LTE cell, determining an RSRP of the NR cell, and assigning an uplink data flow configuration for the UE based on the RSRP of the LTE cell and the RSRP of the NR cell.