Multipath Transmission Policy Negotiation via Packet Extension Bits
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Solution Overview
Problem
Existing multipath transmission technologies lack the flexibility to negotiate transmission policies between devices, leading to suboptimal performance and user experience due to statically set policies that do not match each other.
Innovation Solution
A method for devices to negotiate transmission policies, including path management and data scheduling policies, using extension bits in packets to ensure matching policies are used, allowing for dynamic adjustment based on requirements and improving link establishment success rates and data transmission performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If transmission policies are statically set by transmit end and receive end separately, then device complexity is reduced, but transmission performance and flexibility deteriorate due to policy mismatch
Solution Approach 1:
The patent implements a feedback mechanism where the receive end sends policy confirmation information back to the transmit end. This allows the transmit end to adjust its transmission policy based on the receive end's capabilities and preferences, ensuring policy matching while maintaining relatively simple device configurations.
Solution Approach 2:
The patent transforms static transmission policies into dynamic ones by enabling negotiation between transmit and receive ends. The policies can be adjusted based on real-time feedback about network conditions, device capabilities, and user preferences, resolving the contradiction between simplicity and adaptability.
2Ease of operation
If transmission policies are statically set without negotiation, then ease of operation is improved, but adaptability deteriorates due to inability to match requirements
Solution Approach 1:
The patent enables the system to automatically negotiate and match transmission policies without user intervention. The transmit and receive ends exchange capability information and automatically select compatible policies, maintaining ease of operation while achieving high adaptability through self-configuration.
Solution Approach 2:
The patent performs preliminary policy negotiation during connection establishment or before data transmission begins. This preliminary action ensures that both ends have matching policies ready before actual transmission, avoiding the need for complex user configuration while maintaining adaptability to different scenarios.
3Device complexity
If no transmission policy negotiation is performed, then device complexity is reduced, but link establishment success rate deteriorates
Solution Approach 1:
The patent implements a lightweight negotiation protocol that exchanges only essential policy information during link establishment. This partial action approach ensures critical policy matching occurs without the overhead of comprehensive negotiation, maintaining low device complexity while improving link establishment success rate.
4Ease of operation
If transmission policies are set without mutual agreement, then ease of operation is improved, but data transmission efficiency deteriorates
Solution Approach 1:
The patent uses feedback from the receive end about its policy preferences and capabilities to guide the transmit end's transmission decisions. This feedback mechanism ensures efficient data transmission by matching policies to actual requirements while keeping the system easy to operate through automatic negotiation.
Data Source
AI summary
This application provides example data transmission methods and corresponding example devices. One example method includes sending, by a first device, a first packet to a second device, where the first packet includes transmission policy negotiation information, and where the transmission policy negotiation information is used to negotiate a transmission policy used when the second device uses a multipath connection. The first device can then receive a second packet from the second device, where the second packet includes first policy information, and where the first policy information indicates a transmission policy used when the second device uses the multipath connection. The first device can then transmit data with the second device based on the first policy information by using a transmission policy corresponding to the first policy information.


