Relay UE Data Volume Information Sidelink
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Solution Overview
Problem
In wireless communication networks, relay devices often lack configuration with user equipment (UEs), leading to inefficiencies in data volume information relay, particularly in sidelink communications where UEs may not be aware of each other's buffer status and transmission capabilities, resulting in suboptimal data transmission and power consumption.
Innovation Solution
The method involves determining data volume information at a medium access control entity of a transmitting UE, which includes an identifier for a sidelink destination and a buffer status field, and transmitting this information to a relay UE, along with control signaling to manage discontinuous reception (DRX) configurations, ensuring optimal data transmission and power management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If relay devices are used in wireless communication networks, then coverage and connectivity are extended, but data volume information relay efficiency deteriorates because UEs are not configured in relation to each other
Solution Approach 1:
The patent introduces a relay UE as an intermediary device that forwards data volume information between transmitting and receiving UEs. The relay UE receives buffer status reports from the transmitting UE and forwards this information to the receiving UE, enabling indirect communication when UEs are not directly configured. This resolves the contradiction by maintaining productivity through the intermediary while preserving coverage extension capabilities.
Solution Approach 2:
The patent segments the communication path into multiple hops: transmitting UE → relay UE → receiving UE. By dividing the direct communication link into segmented segments, the system can extend coverage through intermediate nodes while implementing specific relay mechanisms for each segment to maintain information relay efficiency.
2Speed
If UEs communicate directly without relay devices, then data transmission speed is high, but network coverage and connectivity are limited
Solution Approach 1:
The relay UE acts as a mediator that preserves high data transmission speeds by efficiently forwarding data volume information and maintaining direct communication paths where possible. When relaying is necessary, the intermediary minimizes latency through optimized buffer status reporting mechanisms, thus preserving speed while extending coverage.
Solution Approach 2:
The system dynamically selects between direct UE-to-UE communication and relayed communication based on coverage requirements and channel conditions. This dynamic adaptation allows the network to maintain high transmission speeds through direct links when available while utilizing relay devices only when coverage extension is necessary.
3Productivity
If relay UEs forward data volume information, then data transmission efficiency is improved, but power consumption increases due to additional relay operations
Solution Approach 1:
The patent implements partial relaying where the relay UE forwards only essential data volume information (buffer status reports) rather than all data traffic. This selective forwarding maintains data transmission efficiency by providing necessary scheduling information while minimizing power consumption by avoiding full data packet relaying.
Solution Approach 2:
The system implements feedback mechanisms where relay UEs receive buffer status reports from transmitting UEs and forward this information to receiving UEs. This feedback loop enables efficient resource allocation and scheduling, improving data transmission efficiency while the feedback is optimized to minimize the energy required for information exchange.
4Use of energy by moving object
If DRX configurations are synchronized between UEs, then power consumption is optimized, but complexity of relay configuration increases
Solution Approach 1:
The relay UE serves as an intermediary for DRX configuration synchronization, receiving DRX parameters from the network and distributing them to connected UEs. This centralized mediation simplifies the overall configuration process by providing a single point of control, thus optimizing power consumption through coordinated DRX while managing complexity through the intermediary's configuration management.
Solution Approach 2:
The relay UE performs multiple functions including data forwarding, buffer status reporting, and DRX configuration management. By consolidating these functions in a single multi-functional node, the system optimizes power consumption through unified DRX synchronization while avoiding the complexity of multiple separate configuration mechanisms.
Data Source
AI summary
Apparatuses, methods, and systems are disclosed for relaying data volume information. One method (900) includes determining (902), at a medium access control entity of a transmitting user equipment, data volume information. The data volume information includes an identifier indicating a sidelink destination and a buffer status field indicating an amount of data available for transmission to a destination. The method (900) includes transmitting (904) the data volume information to a relay user equipment.