Interferer Parameter Detection for LTE Downlink Throughput

The patent applies preliminary action by performing blind detection of interferer parameters (such as cell ID, scrambling identity, antenna port) before the actual interference cancellation process. The UE autonomously detects these parameters in advance using reference signals, preparing the necessary information for subsequent channel estimation and interference suppression. This preliminary detection phase enables the enhanced IS/IC receiver to function effectively without requiring complex real-time parameter acquisition during data reception.

The patent uses reference signals (such as DMRS - Demodulation Reference Signals) as an intermediary to enable blind detection of interferer parameters. These reference signals are transmitted by interfering cells and can be detected by the UE to infer parameters like cell identity, scrambling identity, and antenna port configuration. The reference signals act as a mediator that carries information about the interferer without requiring direct communication or explicit signaling, thus enabling reliable parameter detection while maintaining measurement precision through structured signal analysis.

The patent applies segmentation by dividing the interferer parameter detection process into distinct stages and focusing on detecting only the most critical parameters autonomously at the UE side. The detection is segmented into identifying key parameters (cell ID, scrambling identity, antenna port) that are sufficient for effective interference suppression, rather than attempting to detect all possible parameters. This segmented approach reduces the computational burden and detection time while maintaining adaptability to various interference scenarios through the detected parameters.