Network Node Skipped Uplink Detection via Signal Threshold
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Solution Overview
Problem
In cellular wireless systems, network nodes face challenges in accurately detecting skipped uplink transmissions, leading to unnecessary attempts at receiving and decoding, which can result in interference and incorrect scheduling decisions.
Innovation Solution
A method for network nodes to determine whether an uplink transmission is skipped by attempting to obtain the transmission, with successful decoding indicating it is not skipped, unsuccessful decoding below a signal strength threshold indicating it is skipped, and rescheduling if the signal strength exceeds a threshold, thereby reducing false detection and improving detection reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the network node attempts to receive and decode every scheduled uplink transmission, then no transmission is missed, but unnecessary attempts are made on skipped transmissions causing interference and wasted resources
Solution Approach 1:
The network node performs a preliminary signal strength measurement before attempting full decoding of the uplink transmission. This preliminary action allows the node to identify and discard obviously skipped transmissions (those below the threshold) before investing resources in decoding, thereby preventing unnecessary interference while maintaining reliable detection of actual transmissions.
2Object-generated harmful factors
If the network node uses signal strength threshold to identify skipped transmissions, then interference is reduced, but false detection may occur
Solution Approach 1:
The network node uses feedback from the decoding attempt result to refine its detection process. When decoding fails, the node checks signal strength against the threshold to determine if the transmission was skipped. This feedback mechanism allows the system to distinguish between weak but valid transmissions and truly skipped transmissions, reducing false detection while maintaining interference reduction.
3Reliability
If the network node reschedules transmissions after failed decoding with high signal strength, then reliable transmissions are recovered, but scheduling overhead increases
Solution Approach 1:
The network node applies different quality levels of processing to different transmissions based on their signal strength characteristics. Transmissions with high signal strength that fail decoding receive full rescheduling treatment, while those below the threshold are immediately identified as skipped without rescheduling. This localized differentiation reduces unnecessary scheduling overhead while maintaining reliability for actual transmissions.
Data Source
AI summary
The present disclosure relates to methods for operating a network node, as well as corresponding network nodes, computer programs, computer program products, and computer-readable media. The method comprises attempting to obtain a scheduled uplink transmission from a transmitter. In response to successful decoding at the network node of the scheduled uplink transmission, it is concluded that the uplink transmission is not skipped by the transmitter. In response to unsuccessful decoding at the network node of the scheduled uplink transmission and a signal strength measurement for the attempt to obtain the scheduled uplink transmission being below a threshold, it is concluded that the uplink transmission is skipped by the transmitter. In response to unsuccessful decoding at the network node of the scheduled uplink transmission and the signal strength measurement for the attempt to obtain the scheduled uplink transmission exceeding the threshold, rescheduling of the uplink transmission is performed.