LTE Mobile Station Persistent Scheduling False Alarm Reduction
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Solution Overview
Problem
In LTE communication systems, the probability of False Alarm is high during Persistent scheduling due to inconsistencies in downlink scheduling information, leading to inefficient resource allocation and communication stability issues.
Innovation Solution
A mobile communication method where the mobile station receives downlink data using a persistently assigned radio resource, with the mobile station discarding inconsistent scheduling information, ensuring accurate resource allocation by limiting the range of information specifiable by the downlink radio resource.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the mobile station receives downlink data using persistent scheduling with predetermined cycle, then resource allocation efficiency is improved, but the probability of False Alarm increases due to inconsistencies in downlink scheduling information
Solution Approach 1:
The mobile station performs preliminary verification by comparing the received downlink scheduling information against the predetermined cycle and assigned radio resource parameters before processing the data. This preliminary action prevents False Alarms by detecting inconsistencies before they propagate through the system.
Solution Approach 2:
The system implements a feedback mechanism where the mobile station monitors the consistency of downlink scheduling information with the persistent assignment parameters. When inconsistencies are detected, the system triggers appropriate error handling procedures, creating a closed-loop control that reduces False Alarm probability.
2Adaptability or versatility
If the mobile station processes all received scheduling information, then communication coverage is maintained, but nonsense information decoding occurs due to False Alarms
Solution Approach 1:
The mobile station extracts and isolates the critical verification parameters (predetermined cycle, assigned radio resource) from the complete scheduling information. By separating the essential validation elements from the full data set, the system can efficiently identify and discard inconsistent information without processing unnecessary nonsense data.
Solution Approach 2:
The system changes the state of scheduling information processing by introducing a verification parameter that compares received information against predetermined values. This parameter change transforms the processing from blind acceptance to conditional acceptance, preventing nonsense information decoding while maintaining coverage for valid transmissions.
3Adaptability or versatility
If the downlink scheduling information is transmitted with full information range, then allocation flexibility is improved, but information inconsistency occurs leading to False Alarms
Solution Approach 1:
The downlink scheduling information is segmented into two distinct parts: predetermined parameters (cycle, assigned radio resource) that remain constant, and dynamic parameters that vary with each transmission. This segmentation allows the system to maintain allocation flexibility in dynamic parameters while ensuring information consistency through verification of predetermined parameters.
Solution Approach 2:
Different quality requirements are applied to different parts of the scheduling information. Predetermined parameters are subject to strict consistency verification to prevent False Alarms, while dynamic parameters allow greater flexibility. This local quality approach maintains overall allocation flexibility while ensuring critical information consistency.
Data Source
AI summary
In a mobile communication method according to the present invention, a mobile station (UE) receives downlink data transmitted from a radio base station by using a downlink radio resource assigned to the mobile station by predetermined scheduling information, in a predetermined cycle, the method comprising the steps: (A) notifying, to the mobile station, the predetermined cycle; (B) notifying, to the mobile station, the predetermined scheduling information; and (C) transmitting downlink data in the predetermined cycle by using the downlink radio resource assigned by the predetermined scheduling information, the transmission starting at a certain point determined on the basis of the received predetermined scheduling information, wherein the predetermined scheduling information is discarded, when the information included in the predetermined scheduling information does not match at least one of previously defined "MCS information", "TPC", and "HARQ process information".