File Transfer via Collaborative Device-to-Device Upload
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Solution Overview
Problem
Low data rate cell-edge users in wireless communications networks face interference limitations and coverage gaps, particularly indoors, which hinder high data rate demands and file transfer performance.
Innovation Solution
The implementation of a file transfer method utilizing Device-to-Device (D2D) communication between User Equipments (UEs) in a Coordinated Multi-Point (CoMP) network, where an owner UE partitions a data file into pieces and collaborates with helper UEs to upload data through Variable or Dynamic Piece Size strategies, optimizing piece sizes based on channel quality and UE conditions, to enhance upload performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If centralized CoMP transmission is used, then complete knowledge of CoMP signals and context is achieved, but high capacity backhaul interconnects are required between base stations
Solution Approach 1:
The patent segments the file transfer process into multiple pieces that can be distributed across different base stations. Each base station handles specific pieces independently, eliminating the need for centralized signal knowledge while maintaining transfer efficiency. This resolves the contradiction by reducing backhaul capacity requirements through distributed processing.
2Loss of time
If distributed processing architecture is used, then backhaul latency is reduced, but performance is reduced relative to centralized CoMP approach
Solution Approach 1:
The patent applies preliminary action by having the User Equipment divide the file into pieces and pre-establish multiple transmission paths to different base stations before actual data transfer begins. This preparation enables parallel distributed processing that maintains high performance while reducing backhaul latency, as each base station can independently process its assigned pieces without waiting for centralized coordination.
3Device complexity
If file is transferred as single unit, then transfer process is simple, but latency is high and data rate is low for cell-edge users
Solution Approach 1:
The patent divides the file into multiple pieces that can be transmitted simultaneously through different base stations. This segmentation reduces upload latency by enabling parallel transmission paths, particularly benefiting cell-edge users who would otherwise experience high latency with single-unit transfers. The complexity increase is managed through automated piece distribution and reassembly protocols.
Data Source
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AI summary
Systems and methods for file transfer by mobile user collaboration are provided. In some embodiments, a method of operation of a first wireless device for uploading a data file as multiple pieces to a destination network node in a wireless communications network includes dividing the data file into the multiple pieces; sending one or more pieces of the multiple pieces to one or more second wireless devices to be uploaded to the destination network node; and uploading one or more pieces via a Coordinated Multi-Point (CoMP) set of cooperating nodes in the wireless communication network. In this way, the first wireless device may be able to upload the data file to the destination network node faster than if the first wireless device uploads the entire date file directly.