Reference Signal Measurement in Active BWP Without Gaps
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Solution Overview
Problem
In 5G mobile communications, measurement gaps for inter-frequency measurements interrupt ongoing data transmission due to UE needing to interrupt the current working frequency, affecting data reception and transmission.
Innovation Solution
A method where a network device configures reference signal and bandwidth part (BWP) information to a terminal device, allowing measurements without starting a measurement gap, by determining and sending configuration information to the terminal device to parse and obtain quality of the reference signal within the active BWP.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If measurement gaps are configured for inter-frequency measurement, then reference signal measurement capability is improved, but data transmission continuity is worsened due to periodic interruptions
Solution Approach 1:
The patent changes the frequency domain parameter by configuring the reference signal to be transmitted within the active bandwidth part (BWP) rather than requiring a separate measurement gap frequency. This allows the terminal to measure reference signals during normal data transmission without interrupting the data flow, thus resolving the contradiction between measurement capability and transmission continuity
Solution Approach 2:
The patent introduces dynamic BWP configuration where the network can flexibly adjust the active BWP to include the reference signal frequency. This dynamic adjustment allows the system to switch between data transmission and reference signal measurement within the same time window, eliminating the need for fixed periodic measurement gaps and maintaining continuous data transmission
2Measurement precision
If measurement gaps are activated for inter-frequency measurement, then measurement capability is improved, but service quality is worsened due to transmission interruptions
Solution Approach 1:
The patent makes the active BWP serve multiple functions: it simultaneously supports both data transmission and reference signal measurement. By configuring the reference signal to be transmitted within the active BWP, the system eliminates the need for separate measurement gaps, allowing the same time resources to be used for both communication functions and thus improving service quality while maintaining measurement capability
3Adaptability or versatility
If reference signal is transmitted outside active bandwidth part, then measurement flexibility is improved, but data transmission efficiency is worsened due to bandwidth utilization constraints
Solution Approach 1:
The patent merges the reference signal transmission and data transmission by configuring both to occur within the same active BWP. Instead of separating these functions into different time windows (measurement gaps), the system combines them spatially in the frequency domain, allowing the terminal to measure reference signals while the network maintains active data transmission, thus improving both flexibility and efficiency
Data Source
AI summary
A measurement configuration method, includes receiving measurement trigger information comprising event trigger information or periodic measurement configuration information, and one or a combination of the following information: a measurement quantity (M) that needs to be reported and a measurement quantity (T) for triggering a measurement event; and sorting and reporting beams in a cell based on the measurement quantity (M) that needs to be reported or the measurement quantity (T) for triggering a measurement event.