Mobile Radio Receiver Paging Detection via Signal Rerouting
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Solution Overview
Problem
Current Dual-SIM mobile communication systems face challenges in receiving pagings from multiple networks, especially during active connections on one network, which requires additional hardware and increased power consumption.
Innovation Solution
The implementation of a mobile communications radio receiver that utilizes a single main receiver and a reduced receiver, with resource sharing and rerouting of paging indicator channels, allows for detection of pagings from multiple networks without the need for additional hardware, by using a data connection to route signals and channel estimates between receivers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a second receive path is added to the UE to receive pagings from both networks simultaneously, then the ability to receive pagings from multiple networks is improved, but the hardware complexity and power consumption increase
Solution Approach 1:
The patent combines the paging reception functionality for both networks into a single receive path. The main receiver is configured to receive signals from both networks, and the system uses intelligent signal routing and processing to handle pagings from either network sequentially, eliminating the need for a second dedicated receive path while maintaining dual-network paging capability
Solution Approach 2:
The system dynamically switches the single receiver between receiving signals from the first network and the second network based on operational state. During active connections, the receiver dynamically tunes to the appropriate network frequency to monitor pagings, allowing flexible adaptation without requiring simultaneous dedicated receivers for both networks
2Adaptability or versatility
If a second receive path is added to the UE to receive pagings from both networks simultaneously, then the ability to receive pagings from multiple networks is improved, but the power consumption increases
Solution Approach 1:
The patent merges the paging reception function for both networks into one shared receiver, eliminating the need for two simultaneously operating receive paths. This consolidation reduces the total power consumption while preserving the capability to monitor pagings from both networks through time-division and frequency-tuning mechanisms
Solution Approach 2:
The system employs periodic switching between networks, where the single receiver alternates between tuning to the first network frequency and the second network frequency to monitor pagings. This periodic action allows the system to maintain dual-network monitoring capability with a single receiver operating at reduced power compared to two simultaneous receivers
3Ease of manufacture
If resource sharing between receivers is implemented, then the hardware efficiency is improved, but the complexity of signal routing and processing increases
Solution Approach 1:
The main receiver is designed as a universal receiver capable of performing multiple functions: receiving signals from both networks, processing active call data, and monitoring pagings from either network. This multi-functionality is achieved through configurable frequency tuning and selective signal routing controlled by a control unit that directs the single receiver to the appropriate network based on current operational state
Data Source
AI summary
A mobile communications radio receiver for multiple radio network operation includes an RF unit for generating a first down-converted signal from a radio signal received from a first radio network and a second down-converted signal from a radio signal received from a second radio network. Further, it includes a first receiver comprising a paging indicator channel demodulator for demodulating a paging indicator channel of the first radio network based on the first down-converted signal, and a second receiver including a pilot channel demodulator for demodulating a pilot channel of the second radio network based on the second down-converted signal. A first data connection is configured to couple paging information contained in the second down-converted signal to an input of the paging indicator channel demodulator of the first receiver.