Granular Early Measurement Reporting for Wireless Devices
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Solution Overview
Problem
In LTE Release 15, the existing solution for early measurement reporting during the transition from idle to connected state is inefficient, as it requires the UE to report all available measurements, leading to increased message size and processing time.
Innovation Solution
The proposed solution allows the network to request a subset of measurements from the UE, specifically limiting the report to measurements associated with particular cells, beams, frequencies, or RATs, thereby reducing the amount of data to be reported.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the UE reports all available measurements during transition from idle to connected state, then the network receives complete measurement information, but the message size increases and processing time increases
Solution Approach 1:
The patent segments the measurement report into two parts: a first measurement report containing only essential measurements (such as serving cell measurements) sent during idle-to-connected transition, and a second measurement report containing additional measurements (such as neighbor cell measurements) sent later. This segmentation allows the network to receive critical information quickly while deferring non-critical measurements, thereby reducing initial processing time without losing complete measurement information.
Solution Approach 2:
The patent applies preliminary action by having the UE perform and store measurements during idle state before transitioning to connected state. The essential measurements are prepared in advance and can be immediately included in the first measurement report upon transition, eliminating the need for the UE to wait until connected state to perform measurements, thus reducing processing time while maintaining information completeness.
2Loss of information
If the UE reports all available measurements during transition from idle to connected state, then the network receives complete measurement information, but the message size increases
Solution Approach 1:
The patent divides the measurement report into two sequential parts. The first measurement report includes only essential measurements needed for immediate network decisions during idle-to-connected transition, while the second measurement report includes additional measurements. This segmentation significantly reduces the size of the initial message while ensuring complete measurement information is eventually transmitted to the network.
3Loss of information
If the network requests all measurements from the UE, then the network has complete information for CA and DC setup, but the transmission latency increases
Solution Approach 1:
The patent segments measurement reporting into two phases: the first measurement report transmitted during idle-to-connected transition contains only essential measurements for rapid network response, while the second measurement report with additional measurements is transmitted later. This segmentation enables fast transmission of critical information without delaying the overall setup process, as the network can proceed with CA and DC configuration using the first report and refine decisions with the second report.
Data Source
AI summary
Systems and methods are disclosed herein for enabling reporting of a subset of measurements performed by a wireless device when in an idle or inactive state to a cellular communications network. In one embodiment, a method performed by a wireless device for reporting measurements to a cellular communications network comprises performing measurements while in an idle or inactive state, storing the measurements, determining a subset of the measurements to be reported by the wireless device, and reporting the determined subset of the measurements to the cellular communications network. In this manner, only desired measurements can be reported, which reduces the amount of information that needs to be reported by the wireless device.