Sidelink Relay Filtering for Remote UE Information Delivery
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Solution Overview
Problem
Existing wireless networks face challenges in efficiently delivering system information and emergency alerts to user equipment (UEs) that are outside network coverage or in power-saving modes, leading to unnecessary power consumption and resource wastage.
Innovation Solution
Implementing a UE-to-network relay using sidelink communication to filter and forward system information and alerts, utilizing location-based geo-fencing and selective forwarding to ensure timely and efficient delivery of critical messages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If network broadcasts system information to all UEs including remote UEs, then all UEs receive necessary information, but power consumption and signaling overhead increase unnecessarily
Solution Approach 1:
The patent extracts only the essential system information that needs to be delivered to remote UEs and separates it from the complete broadcast message. The relay UE extracts relevant information from the full system information broadcast and forwards only what is necessary to the remote UE, reducing power consumption while maintaining reliable delivery.
Solution Approach 2:
The relay UE acts as an intermediary between the network and remote UEs. It receives system information from the network, filters and processes it, then forwards only the necessary portions to remote UEs via sidelink communication. This intermediary approach eliminates the need for remote UEs to continuously monitor network broadcasts, reducing their power consumption.
2Reliability
If network broadcasts system information to all UEs including remote UEs, then all UEs receive necessary information, but signaling overhead increases
Solution Approach 1:
The relay UE extracts only the essential system information that needs to be delivered to remote UEs and separates it from the complete broadcast message. The relay UE extracts relevant information from the full system information broadcast and forwards only what is necessary to the remote UE, reducing power consumption while maintaining reliable delivery.
Solution Approach 2:
The relay UE acts as an intermediary between the network and remote UEs. It receives system information from the network, filters and processes it, then forwards only the necessary portions to remote UEs via sidelink communication. This intermediary approach eliminates the need for remote UEs to continuously monitor network broadcasts, reducing their power consumption.
3Reliability
If relay UE forwards all received system information to remote UE, then complete information is delivered, but unnecessary information increases signaling overhead
Solution Approach 1:
The relay UE applies local quality by tailoring the forwarded information to the specific needs of the remote UE. Instead of forwarding all system information uniformly, it selectively forwards only the portions relevant to the remote UE's location, service requirements, and current state, thereby reducing signaling overhead while maintaining information completeness for the remote UE.
Solution Approach 2:
The relay UE applies partial action by forwarding only the necessary portion of system information rather than all available information. It determines which system information blocks are relevant based on the remote UE's context and forwards only those, avoiding the excessive action of transmitting complete information when only partial data is needed.
Data Source
AI summary
The present application relates to devices and components including apparatus, systems, and methods for information forwarding via sidelink relays in wireless networks.