Dynamic Early Data Transmission Activation via Downlink Control Signaling
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Solution Overview
Problem
Existing early data transmission (EDT) methods in wireless communication systems are energy-inefficient and time-consuming, particularly for IoT devices, due to static activation and deactivation, which can impact quality of service, latency, and spectral efficiency.
Innovation Solution
Implementing dynamic downlink control signaling to activate or deactivate EDT in a random access procedure, allowing for selective employment based on control messages between network nodes and user equipment, enabling network-controlled activation or deactivation of EDT.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If EDT is statically activated or deactivated, then the configuration is simple and easy to implement, but the quality of service deteriorates in terms of latency, spectral efficiency, and load imposed on devices
Solution Approach 1:
The patent transforms the static EDT configuration into a dynamic one by introducing downlink control signaling that can activate or deactivate EDT on-demand. The network node sends control messages to the UE to dynamically switch EDT status based on current network conditions, traffic patterns, and channel quality, thereby optimizing quality of service while maintaining implementation feasibility through standardized signaling procedures.
Solution Approach 2:
The patent changes the operational parameter of EDT from a fixed static state to a variable state controlled by network signaling. By introducing activation/deactivation control bits in downlink control messages, the system can adjust EDT behavior in response to changing conditions, improving latency and spectral efficiency without requiring complex reconfiguration of the underlying EDT mechanism.
2Device complexity
If EDT is statically activated, then device complexity is reduced, but latency increases due to inability to adapt to varying network conditions
Solution Approach 1:
The patent implements a feedback mechanism where the network node monitors network conditions and sends control signaling to activate or deactivate EDT at the UE. This feedback loop allows the system to respond to changing conditions dynamically, reducing latency when EDT is beneficial while keeping device complexity low since the UE simply follows network instructions without making complex decisions.
3Quantity of substance
If EDT is statically deactivated, then network load is reduced, but energy consumption increases due to inability to utilize efficient transmission methods
Solution Approach 1:
The patent enables dynamic switching between EDT and traditional random access procedures based on real-time network conditions. When network load is low and channel conditions are good, EDT is activated to reduce energy consumption. When load increases or conditions deteriorate, EDT is deactivated to reduce network load, thereby optimizing the trade-off between energy efficiency and network load management.
Data Source
AI summary
A method includes downlink control signaling (6520) between a network (100, 101) and a terminal (102), said downlink control signaling (6520) comprising a control message (6010) indicative of activation or deactivation of early-data-transmission (6800) in a random access procedure (600) of the terminal (102). The method also includes selectively employing the early-data-transmission (6800) in accordance with the control message (6010).