UE Early Measurement Reporting With Carrier Verification Windows
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently performing early measurement reports (EMR) and inter-frequency measurements for non-connected mode user equipment (UE), leading to inefficiencies in network connectivity and resource allocation.
Innovation Solution
The proposed solution involves performing early measurement report (EMR) measurements for a first set of carriers within an EMR time window, conducting verification operations based on carrier measurements in a verification time window, and transmitting results to a network node, while also receiving configuration information for inter-frequency measurements and selectively performing cell detection and measurements based on a reference carrier.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If early measurement report (EMR) measurements are performed for multiple carriers in non-connected mode, then measurement coverage and network connectivity are improved, but measurement processing time and complexity increase
Solution Approach 1:
The patent performs EMR measurements for a first set of carriers during an EMR time window before the UE transitions to connected mode. This preliminary measurement action allows the network to have measurement results ready in advance, reducing the time needed for network setup and improving connectivity reliability without adding processing time during critical connection establishment.
Solution Approach 2:
The patent divides measurement operations into distinct segments: (1) EMR measurements for the first set of carriers during the EMR time window, (2) verification operations for the second set of carriers during a verification time window, and (3) selective reporting. This segmentation allows parallel processing of different measurement tasks, reducing overall measurement processing time while maintaining comprehensive measurement coverage.
2Measurement precision
If verification operations are performed for EMR measurements, then measurement accuracy is improved, but device complexity and processing overhead increase
Solution Approach 1:
The patent performs verification operations selectively rather than for all carriers. Specifically, verification is performed for a second set of carriers that may include subset of or overlap with the first set, but not necessarily all carriers. This partial verification approach maintains measurement accuracy for critical carriers while reducing overall processing overhead and device complexity.
Solution Approach 2:
The patent implements a feedback mechanism where verification operation results are used to confirm or adjust EMR measurement results. The UE reports measurement results based on verification outcomes, allowing the network to receive high-confidence measurement data. This feedback loop ensures measurement precision without requiring exhaustive verification of all carriers, thus managing processing overhead.
3Manufacturing precision
If inter-frequency measurements are performed on multiple target carriers, then carrier selection accuracy is improved, but power consumption and processing load increase
Solution Approach 1:
The patent segments inter-frequency measurements into two distinct phases: (1) cell detection on a reference carrier during a first time window, and (2) inter-frequency measurements on a group of carriers during a second time window. This segmentation allows the UE to perform measurements in controlled time intervals rather than continuously, reducing power consumption while maintaining carrier selection accuracy through systematic measurement progression.
Solution Approach 2:
The patent performs cell detection on a reference carrier before performing inter-frequency measurements on the group of carriers. This preliminary action on the reference carrier provides baseline information that guides subsequent inter-frequency measurements, allowing the UE to focus power consumption on measurements that are most likely to yield useful results, thereby improving carrier selection accuracy while managing power usage.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may perform early measurement report (EMR) measurements for a first set of carriers in an EMR time window. The UE may perform at least one verification operation for the EMR measurements based at least in part on at least one carrier measurement in a verification time window. The UE may transmit, to a network node, measurement results associated with the EMR measurements for one or more carriers in the first set of carriers based at least in part on the at least one verification operation. Numerous other aspects are described.