Group-Based DRX Alignment for Wireless Network Nodes
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently aligning discontinuous reception (DRX) configurations across network nodes, leading to suboptimal resource utilization and increased power consumption, particularly in scenarios with multiple access and sidelink communications.
Innovation Solution
The method involves receiving and transmitting DRX group information to align access link and sidelink DRX configurations, utilizing a DRX grouping configuration that enables synchronization across network nodes, thereby optimizing communication via sidelinks or access links.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If DRX configurations are aligned across network nodes, then power consumption is reduced and resource utilization is improved, but device complexity and configuration management become more complex
Solution Approach 1:
The patent segments network nodes into different DRX groups (first DRX group and second DRX group) with distinct DRX configurations. Each group has its own DRX cycle parameters, allowing independent optimization. This segmentation resolves the contradiction by enabling power savings through alignment within groups while avoiding system-wide complexity through localized group management.
Solution Approach 2:
The patent introduces a group dimension to DRX configuration management, transitioning from individual node configuration to group-based configuration. By adding this organizational dimension, the system achieves alignment benefits within groups while simplifying overall management through hierarchical structure, thus resolving the power consumption vs. complexity trade-off.
2Productivity
If DRX alignment is implemented across all network nodes, then resource utilization improves, but latency increases due to synchronization requirements
Solution Approach 1:
The patent divides network nodes into multiple DRX groups that can operate with different DRX configurations and timing. This segmentation allows resource alignment and efficient utilization within each group while maintaining independent timing, thus avoiding system-wide latency increases. Groups can be optimized for different service requirements.
Solution Approach 2:
The patent enables dynamic DRX configuration where network nodes can transition between different DRX groups based on traffic conditions and service requirements. This dynamic adaptation allows the system to optimize resource utilization when alignment is beneficial while reducing latency by allowing nodes to exit aligned configurations when low-latency communication is needed.
3Productivity
If group-based DRX alignment is implemented, then sidelink and access link communications are optimized, but the complexity of DRX group management increases
Solution Approach 1:
The patent creates DRX groups that serve multiple functions simultaneously - they enable both sidelink communication optimization and access link communication optimization. The same group structure and alignment mechanisms benefit both communication types, reducing the overall management complexity compared to separate management schemes while maintaining communication efficiency.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first network node may receive discontinuous reception (DRX) group information associated with a DRX grouping configuration that enables alignment of access link DRX configurations corresponding to a first set of network nodes and sidelink DRX configurations corresponding to the first set of network nodes, wherein the DRX group information indicates a first group identifier (ID) corresponding to a first DRX group of a plurality of DRX groups associated with the DRX grouping configuration, and wherein the first DRX group includes a first subset of the first set of network nodes. The first network node may communicate, based at least in part on the DRX group information, via at least one of a sidelink or an access link. Numerous other aspects are described.