PDU Differentiation in D2D Communication Systems
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing Device to Device (D2D) communication systems fail to differentiate between various Protocol Data Units (PDU) types, leading to inefficient processing and transmission of packets.
Innovation Solution
The system differentiates PDU types by adding a unique value to the data packets, allowing receiving User Equipments (UEs) to identify and process packets accordingly, using a packet differentiator module that maps data to appropriate D2D radio bearers and applies specific packet processing functions based on the PDU type.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the system processes all packets as IP packets without differentiation, then the processing is simple and uniform, but different PDU types cannot be properly handled and communication efficiency deteriorates
Solution Approach 1:
The patent segments the packet processing function by introducing a packet differentiator module that separates packets into different types (IP packets, ARP packets, and other non-IP packets) based on their PDU type indicators. This segmentation allows each packet type to be processed by specialized handling routines rather than a single uniform process, improving communication efficiency for each packet type while maintaining manageable complexity through modular organization of processing logic.
2Adaptability or versatility
If the system adds packet type differentiation mechanisms, then different PDU types can be properly handled, but the system complexity increases
Solution Approach 1:
The patent applies preliminary action by having the packet differentiator module examine and identify the PDU type indicator in each incoming packet before the packet is routed to its destination. By performing this classification early in the processing chain, the system enables subsequent modules to handle packets according to their specific type requirements without adding complex decision-making logic throughout the entire processing path, thus achieving versatile PDU type handling with controlled complexity.
Solution Approach 2:
The patent introduces a packet differentiator module as an intermediary component between the receiving radio bearer and the higher layer processing modules. This intermediary examines the PDU type indicator and routes packets to appropriate handling routines, providing adaptability for different PDU types while shielding the rest of the system from complexity through a standardized interface and centralized differentiation logic.
3Productivity
If the system uses a single processing path for all packets, then the system architecture is simple, but packet processing efficiency for different PDU types deteriorates
Solution Approach 1:
The patent segments the packet processing path into multiple specialized routes based on PDU type. The packet differentiator module divides the processing flow into separate paths for IP packets, ARP packets, and other non-IP packets, allowing each path to be optimized for its specific packet type. This segmentation improves processing efficiency for each PDU type while keeping the overall architecture manageable through clear separation of processing logic.
Solution Approach 2:
The patent applies local quality by implementing packet-type-specific processing optimizations at each stage of the processing path. Different packet types receive tailored handling routines that are optimized for their specific requirements, rather than forcing all packets through a generic processing sequence. This local optimization improves overall processing efficiency while the modular structure maintains architectural simplicity.
Data Source
AI summary
A method and system for differentiating different Protocol Data Units (PDU) in a D2D communication network. The type of PDU to be differentiated is assigned/associated with a unique data/value and transmitted to the destination, by a transmitting User Equipment. At the receiving end, the receiving User Equipment differentiates between different types of PDU packets received, based on the unique data associated with the collected data. Further, the received PDU data is processed based on a suitable packet processing function that matches the PDU type of the PDU data received.