Component Carrier Measurements Without Throughput-Degrading Gaps
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Solution Overview
Problem
Wireless communications systems experience throughput degradation due to the need for measurement gaps during radio resource management, particularly in carrier aggregation scenarios, leading to interruptions in ongoing scheduling and reduced maximum achievable throughput.
Innovation Solution
The UE reconfigures RF and baseband resource allocations to allow for gapless measurements by reducing the number of measurement gaps, enabling simultaneous communication and measurement on different component carriers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If measurement gaps are implemented during radio resource management, then measurement accuracy is improved, but throughput is degraded due to interruptions in ongoing scheduling
Solution Approach 1:
The patent segments the measurement process by component carrier, allowing the UE to perform gapless measurements on specific component carriers while maintaining normal scheduling on others. The UE identifies which component carriers require measurements and performs measurements only during non-scheduling intervals for those specific carriers, rather than implementing system-wide measurement gaps that interrupt all communications.
Solution Approach 2:
The patent implements dynamic resource allocation where the UE adapts its measurement timing based on the scheduling status of different component carriers. The UE dynamically identifies measurement opportunities during intervals when no scheduling occurs on the target component carrier, allowing the system to transition between measurement mode and communication mode seamlessly without fixed measurement gaps.
2Reliability
If measurement gaps are scheduled for radio resource management, then measurement reliability is improved, but time resources are lost due to gap interruptions
Solution Approach 1:
The patent applies preliminary action by having the UE proactively identify measurement opportunities in advance by monitoring the scheduling status of component carriers. The UE determines ahead of time when measurement gaps can be performed without impacting scheduled communications, and prepares measurement configurations accordingly, ensuring measurements are taken during pre-identified safe intervals.
Solution Approach 2:
The patent maintains continuity of useful action by ensuring that measurement activities do not interrupt the continuous flow of scheduled communications on active component carriers. The UE performs measurements during intervals when scheduling is naturally absent, thereby maintaining continuous useful communication action on carriers that require it while still achieving measurement objectives.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A method for wireless communications at a user equipment (UE) is described, including receiving, from a network entity, signaling that configures one or more measurement resources for a plurality of measurement objects, wherein the measurement resources are based at least in part on a current radio frequency resource allocation and a baseband resource allocation for at least a first component carrier of a plurality of component carriers. The method may further include performing measurements during the measurement resources on the first component carrier during a first time period based on a reconfiguration of the measurement resources to change a quantity of measurement gaps during communications by the UE on a second component carrier. The method may also include communicating on the second component carrier of the plurality of component carriers during at least a portion of the first time period.