Adaptive SMTC Timing for UE Measurement Delay and Power Control
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Solution Overview
Problem
Existing UE measurement configurations in telecommunication networks face challenges in balancing timely mobility decisions with reduced measurement delay and power consumption, particularly in varying radio conditions such as cell center and edge, leading to increased overhead and scheduling restrictions.
Innovation Solution
Adaptive synchronization signal block (SSB)-based measurement timing configuration (SMTC) that adjusts measurement periodicity and offset based on UE region state, allowing for reduced measurement delay and power consumption by enabling fast beam sweeping in multi-Rx configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If UE performs measurements using all measurement timing occasions with high periodicity, then measurement precision and mobility decision accuracy are improved, but power consumption and measurement delay increase
Solution Approach 1:
The patent applies local quality by differentiating measurement periodicity based on UE location within the cell. UEs in the cell center use higher periodicity (e.g., every 10th SMTC occasion) while UEs at cell edge use lower periodicity (e.g., every 2nd SMTC occasion), optimizing power consumption based on local measurement needs
Solution Approach 2:
The measurement configuration dynamically adapts based on UE region state. The network determines whether a UE is in cell center or cell edge and adjusts the measurement periodicity accordingly, making the measurement system dynamic rather than static
2Measurement precision
If UE performs measurements with high periodicity, then measurement precision is improved, but measurement delay increases
Solution Approach 1:
Different measurement periodicities are applied based on UE location: cell center UEs use higher periodicity for precision while cell edge UEs use lower periodicity to reduce measurement delay, as cell edge UEs need faster mobility decisions
Solution Approach 2:
The system dynamically adjusts measurement periodicity based on real-time determination of UE region state, allowing cell edge UEs to use more frequent measurements for timely mobility decisions while cell center UEs use less frequent measurements
3Productivity
If network schedules data transmission during measurement timing occasions, then productivity is improved, but measurement reliability deteriorates
Solution Approach 1:
The patent segments measurement timing occasions into different categories: some SMTC occasions are designated for measurements only (non-schedulable), while others allow both measurements and data transmission. This segmentation enables the network to schedule data during measurement-free occasions, improving productivity without compromising measurement reliability
Solution Approach 2:
The network dynamically determines which SMTC occasions can be scheduled based on UE region state and measurement needs, adjusting the scheduling flexibility in real-time to balance data transmission efficiency with measurement reliability
Data Source
AI summary
Example embodiments of the present disclosure are directed to measurement configuration adaptation. A method comprises receiving, from a second apparatus, a measurement configuration at least comprising a plurality of measurement timing occasions for measurements; performing, based on a state of the first apparatus being in a first region within a cell serving the first apparatus, the measurements by using some of the measurement timing occasions with a first periodicity; and monitoring, during a measurement timing occasion within which the first apparatus does not perform the measurements, scheduling information from the second apparatus; and transmitting, to the second apparatus, a response associated with a reception of a data transmission associated with the scheduling information.