Implicit Uplink Resource Release in LTE via DRX State Transitions
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems face inefficiencies in managing uplink control resources, particularly in LTE networks, due to high signaling overheads and power consumption associated with frequent transitions between RRC idle and connected modes, and the need for explicit signaling to release and reallocate resources.
Innovation Solution
Implementing an implicit resource release mechanism based on DRX sub-state transitions, using a resource index identifier and known relationships between identifiers and resource configurations, to dynamically manage and reallocate uplink control resources without explicit signaling, thereby reducing overhead and optimizing resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If explicit signaling is used to release and reallocate uplink control resources during mode transitions, then resource management reliability is improved, but signaling overhead increases and power consumption increases
Solution Approach 1:
The system uses self-service by allowing the UE to automatically release uplink control resources when transitioning to RRC idle mode without requiring explicit release signaling from the network. The UE independently manages its own resource allocation based on mode transitions, eliminating the need for additional signaling messages and reducing power consumption associated with signaling exchanges.
Solution Approach 2:
The patent extracts the resource release function from the network signaling process and places it directly at the UE side. Instead of the network explicitly signaling resource release, the UE autonomously releases resources based on its own mode transition state, removing the harmful signaling overhead while maintaining reliable resource management.
2Manufacturing precision
If explicit signaling is used to release and reallocate resources during mode transitions, then resource allocation accuracy is improved, but signaling overhead increases
Solution Approach 1:
The UE performs self-service by automatically releasing uplink control resources when transitioning to RRC idle mode. This eliminates the need for explicit release signaling messages between the network and UE, reducing signaling overhead while maintaining accurate resource allocation through the UE's own knowledge of its mode transition state.
Solution Approach 2:
The system performs preliminary action by having the UE release resources proactively upon mode transition before any potential reallocation is needed. This prevents the need for subsequent explicit release signaling and reallocation signaling, reducing overall signaling overhead while ensuring resources are accurately managed according to the UE's actual needs.
3Adaptability or versatility
If frequent transitions between RRC idle and connected modes occur, then system adaptability is improved, but signaling overhead increases and power consumption increases
Solution Approach 1:
The UE implements self-service by autonomously managing resource release during mode transitions. When the UE transitions to RRC idle mode, it automatically releases its uplink control resources without requiring network signaling. This mechanism remains effective regardless of transition frequency, allowing the system to adapt to varying traffic conditions while minimizing signaling overhead even during frequent transitions.
4Productivity
If resources are not released during mode transitions, then resource availability for immediate reuse is improved, but resource wastage increases
Solution Approach 1:
The UE performs self-service by automatically releasing uplink control resources when transitioning to RRC idle mode. This ensures that resources are freed for immediate reuse by other UEs, improving resource availability and preventing resource wastage without requiring explicit network signaling. The resource pool remains dynamically updated based on actual UE activity states.
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A wireless network, such as an LTE ("Long-Term Evolution") network, may be configured to a receive an identifier associated with resource configurations in a wireless network. The identifier is mapped to a resource configuration in a plurality of resource configurations. The user equipment applies the resource configuration.