Paging Signal Processing for 4G-5G Coexistence
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Solution Overview
Problem
The coexistence of 4G and 5G wireless communication systems poses challenges in supporting paging signal processing, multiple connections, and base station mobility, leading to increased power consumption, network load, and latency issues due to the complexity of managing different radio access technologies and network node changes.
Innovation Solution
A communication method and device that enable efficient paging signal processing and multiple connections by using broadcast signals to transmit and receive information about paging signals, allowing terminals to identify and connect with the appropriate radio access technology, thereby reducing latency and power consumption, and facilitating quick data unit changes through beam feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If 4G and 5G systems coexist with multiple radio access technologies, then network capability and coverage are improved, but device complexity and power consumption increase
Solution Approach 1:
The patent segments the network management by introducing separate control plane and user plane functions, allowing different radio access technologies (4G LTE and 5G NR) to be managed independently through distinct protocol stacks and control mechanisms, thereby reducing overall system complexity while maintaining multi-RAT capability
Solution Approach 2:
The patent introduces an intermediary layer (proximity services server and gateway) that mediates between multiple radio access technologies and terminal devices, handling the complexity of RAT selection, handover, and resource allocation centrally, which simplifies terminal device management while preserving network versatility
2Reliability
If multiple connections are supported for terminal mobility, then network coverage and service continuity are improved, but power consumption and processing load increase
Solution Approach 1:
The patent implements periodic connection management where terminals establish connections only when needed for specific services (such as proximity services or data transmission), rather than maintaining continuous multiple connections, thereby reducing power consumption while ensuring service continuity through on-demand connection establishment
Solution Approach 2:
The patent applies different connection strategies to different services and terminal states, allowing full multiple connections only when required for specific high-reliability services, while using simplified single-connection modes for other services, thus optimizing power consumption based on local service requirements
3Productivity
If beamforming and massive MIMO are deployed in 5G, then data transmission rate is improved, but device complexity and computational requirements increase
Solution Approach 1:
The patent extracts the complex beamforming and massive MIMO processing functions from the terminal device and relocates them to the network side (base station and core network), allowing terminals to benefit from high data rates without bearing the computational burden, thus improving productivity while managing device complexity
Solution Approach 2:
The patent uses simplified reference signals and channel state information feedback mechanisms that allow terminals to cooperate with network-side beamforming without implementing full complex processing, effectively copying only the essential measurement and reporting functions to the terminal while keeping the heavy processing in the network
Data Source
AI summary
The present disclosure relates to a communication scheme for merging IoT technology with a 5G communication system supporting a data transmission rate higher than that of a 4G system, and to a system for the scheme. The present disclosure can be applied to intelligent services (for instance, smart home, smart building, smart city, smart car or connected car, heath care, digital education, retail business, security- and safety-related service and so forth) on the basis of 5G communication technology and IoT-related technology. The present invention provides a device and method for supporting paging signal processing using multi-connection in a wireless communication system.