Dynamic Control Channel Resources for 5G Power and Latency
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Solution Overview
Problem
Current wireless communication systems, particularly 5G NR and LTE, face challenges in efficiently managing dynamic control channel resources, leading to power consumption issues and limited scheduling flexibility due to sparse control channel monitoring, which affects latency and performance, especially in high-band frequency applications like FR4.
Innovation Solution
The implementation of dynamic control channel resource signaling and processing techniques that allow user equipment (UE) to identify and monitor dynamic control channel resources based on a first control channel resource configuration, enabling dynamic indication of additional resources by network entities, thereby optimizing power usage and scheduling flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If sparse control channel monitoring is used, then power consumption is reduced, but scheduling flexibility and latency performance deteriorate
Solution Approach 1:
The patent implements dynamic control channel monitoring where the UE adapts its monitoring behavior based on received indications from the network. The network can dynamically indicate whether the UE should monitor control channel resources in upcoming time periods, transforming the static sparse monitoring approach into a dynamic system that adjusts monitoring density based on scheduling needs, thereby maintaining power savings while improving scheduling flexibility
Solution Approach 2:
The network entity sends preliminary indications to the UE about upcoming control channel monitoring opportunities before the actual monitoring occurs. This allows the UE to prepare for potential scheduling decisions in advance, improving the system's ability to respond to time-critical scheduling requirements while still maintaining reduced monitoring density compared to continuous monitoring
2Use of energy by moving object
If sparse control channel monitoring is used, then power consumption is reduced, but latency performance deteriorates
Solution Approach 1:
The dynamic indication mechanism allows the network to temporarily increase monitoring density when low latency is required. By dynamically signaling the UE to monitor control channels in specific time periods, the system can reduce latency for time-critical transmissions while maintaining sparse monitoring during normal operations to conserve power
Solution Approach 2:
The system changes the monitoring parameter (whether to monitor control channel resources) based on network conditions and scheduling requirements. When low latency is needed, the parameter changes from 'do not monitor' to 'monitor', allowing the system to adapt latency performance by adjusting monitoring behavior without permanently increasing power consumption
3Adaptability or versatility
If dynamic control channel resource indication is implemented, then scheduling flexibility is improved, but device complexity increases
Solution Approach 1:
The network entity maintains the complexity of managing dynamic indications and control channel resource configurations, while the UE implements a relatively simple mechanism for receiving and acting on these indications. The UE's role is primarily to monitor for indication messages and adjust its behavior accordingly, rather than participating in complex resource allocation decisions, thereby improving scheduling flexibility without significantly increasing UE device complexity
Data Source
AI summary
Aspects of the present disclosure provide apparatus, methods, processing systems, and computer readable mediums for signaling and processing dynamic control channel resources.