UE Latency Reduction via Application-Specific Resource Requests
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Solution Overview
Problem
Wireless communication networks face challenges in reducing latency due to partial information about user equipment (UE) resources, as they may not be aware of service types or requirements that affect data transfer efficiency, leading to suboptimal resource allocation.
Innovation Solution
The UE proactively generates and transmits resource request messages to the network to transition to a lower latency communication state based on application-specific activities, even if network-configured criteria are not met, allowing for more efficient resource allocation and reduced latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the network entity assigns resources based on partial information (buffer amount only), then the resource allocation process is simple, but the latency is increased due to lack of service type awareness
Solution Approach 1:
The UE performs preliminary action by proactively transmitting resource request messages to the network entity before data transmission begins. This allows the network entity to advance the state transition and resource allocation process, reducing the latency that would otherwise occur while the network entity waits for buffer status reports and processes resource allocation decisions.
Solution Approach 2:
The system implements feedback mechanisms where the UE monitors application-specific latency triggering conditions and provides proactive feedback to the network entity through resource request messages. This feedback loop enables the network entity to adjust resource allocation and state transitions based on real-time application requirements rather than relying solely on periodic buffer status reports.
2Use of energy by moving object
If the UE waits for network-configured threshold values before requesting resources, then energy consumption is reduced, but latency increases due to delayed state transitions
Solution Approach 1:
The UE dynamically adjusts its resource request strategy based on application-specific conditions. When latency-critical applications are detected, the UE transitions from a passive threshold-based triggering mode to an active proactive request mode, sending resource requests regardless of buffer threshold values. This dynamic behavior allows the system to optimize between energy consumption and latency based on real-time application requirements.
Solution Approach 2:
The system changes the triggering parameter for resource requests from a fixed network-configured threshold to a flexible application-specific condition. This parameter change allows the UE to bypass traditional threshold-based triggering when latency reduction is prioritized, enabling faster state transitions while maintaining energy efficiency for non-critical applications.
3Productivity
If the UE operates in lower latency states (e.g., CELL_DCH), then data transfer efficiency is improved, but energy consumption increases
Solution Approach 1:
The UE performs preliminary action by proactively requesting state transitions to lower latency states before data transmission begins. This advance preparation allows the UE to be in the optimal communication state (CELL_DCH) when data arrives, ensuring high data transfer efficiency without maintaining the high-energy state continuously, thus reducing overall energy consumption.
Solution Approach 2:
The UE dynamically transitions between communication states based on application-specific latency requirements and data arrival patterns. Rather than maintaining a fixed state, the system adapts state transitions to match actual traffic needs, occupying lower latency states only when necessary for latency-critical applications while remaining in energy-efficient states during idle periods.
Data Source
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AI summary
The disclosure provides for a user equipment (UE) detecting an indication of an application-specific latency reduction triggering condition that may trigger switching of a communication state of the UE. For example, the UE may be in an initial state. The UE may transition into a different state that is associated with lower latency for data transfer. In an aspect, the UE may trigger the indication for latency reduction even when the network-configured criteria for the indication has not yet been met. The UE may trigger an application-specific latency reduction triggering condition during the startup of an application, which triggers a resource request message even before the network-configured threshold value for generating such resource request messages is satisfied. The resource request message may cause the network to command the UE to transition to a state that has a latency less than that in the current state.