Cross-Carrier Scheduling Component Carriers for Wireless Failover
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Solution Overview
Problem
Current wireless communication systems, such as 5G NR and LTE, face challenges in resource scheduling, particularly in scenarios where decoding failures occur, leading to increased latency and inefficiencies in cross-carrier scheduling.
Innovation Solution
The implementation of cross-carrier scheduling techniques, where multiple scheduling component carriers (CCs) are configured to schedule resources across different signaling entities, allowing for failover and reduced latency by designating alternative CCs for resource allocation, even if primary CCs fail.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cross-carrier scheduling is implemented with multiple scheduling CCs, then reliability is improved through failover capability, but device complexity increases due to monitoring multiple signaling entities
Solution Approach 1:
The patent divides the scheduling function across multiple component carriers (CCs), where each CC can independently schedule resources. This segmentation allows the system to monitor multiple signaling entities for control messages, providing redundancy and failover capability while distributing the monitoring load across different carriers rather than concentrating it on a single entity.
2Productivity
If multiple signaling entities are monitored for control messages, then productivity is improved through reduced latency, but loss of time increases due to monitoring overhead
Solution Approach 1:
The patent configures multiple signaling entities in advance as potential sources of control messages. By pre-establishing these monitoring points, the system can immediately switch to an alternative signaling entity if a decoding failure occurs, avoiding the time penalty of establishing new monitoring relationships on-demand and reducing overall latency despite the increased monitoring scope.
Data Source
AI summary
Certain aspects of the present disclosure are generally directed to a method for wireless communication. The method generally includes receiving a configuration of resources on a plurality of signaling entities for reception of a plurality of control messages, wherein each of the plurality of control messages schedules resources on a different signaling entity than one of the plurality of signaling entities on which the control message is to be received, and monitoring the configured resources on the plurality of signaling entities for the plurality of control messages.