Dynamic Priority Adjustment for Delay-Tolerant Data Transmission
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently transmitting small amounts of data or infrequently occurring data, particularly for delay-tolerant devices, due to network congestion and prioritization issues in 3GPP UMTS/EPC-based mobile communication systems.
Innovation Solution
A method is introduced to ensure data transmission within an upper-bound timeframe for delay-tolerant UE by prioritizing channel allocation requests and overriding conventional priority settings during congestion, allowing for efficient uplink/downlink signal transmission while maintaining backward compatibility with legacy systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional priority settings are applied during network congestion, then high-priority data transmission is ensured, but delay-tolerant data transmission fails to meet upper-bound timeframe requirements
Solution Approach 1:
The patent dynamically adjusts the priority of channel allocation requests based on the remaining timeframe. When the remaining timeframe exceeds a threshold, the priority is increased, allowing delay-tolerant data to override conventional priority settings and be transmitted before congestion control mechanisms would normally delay it.
Solution Approach 2:
The patent changes the priority parameter of channel allocation requests in real-time based on the remaining timeframe. This parameter change enables the system to adapt to different timing conditions, ensuring that delay-tolerant data can be transmitted within its upper-bound timeframe by temporarily elevating its priority status.
2Productivity
If back-off mechanism is applied during congestion, then network overload is controlled, but data transmission for delay-tolerant devices is delayed beyond acceptable timeframe
Solution Approach 1:
The patent dynamically adjusts the back-off time based on the remaining timeframe for delay-tolerant data. When the remaining timeframe is sufficient, the back-off time is reduced or eliminated, allowing these devices to transmit data without excessive delay while still controlling network overload through selective priority adjustment.
3Productivity
If new transmission method for delay-tolerant devices is implemented, then data transmission efficiency is improved, but device complexity increases
Solution Approach 1:
The patent enables delay-tolerant devices to automatically determine their own priority level based on the remaining timeframe without requiring complex network configuration or intervention. The device independently assesses whether its remaining timeframe exceeds the threshold and adjusts its channel allocation request priority accordingly, reducing the need for complex external control mechanisms.
Data Source
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AI summary
User equipment may send a channel allocation request (hereinafter referred to as a first channel allocation request) to a network for transmission of data. When the transmission of data has backed off, the user equipment may send a channel allocation request (hereinafter referred to as a second channel allocation request) again for the transmission of data. At this time, the second channel allocation request may be transmitted to the network together with a priority raise request if a remaining timeframe Tremain of an upper timeframe T is smaller than a certain guard time.