NFC Handover Collision Resolution via Random Priority
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Solution Overview
Problem
NFC link handover collisions occur when multiple electronic devices attempt to switch to alternative communication links simultaneously, leading to conflicts and inefficiencies in data transmission.
Innovation Solution
A method and device that manage handover collisions by transmitting handover request messages, determining response messages based on random numbers and priority settings, and selecting appropriate alternative communication links to resolve conflicts and ensure seamless data exchange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple electronic devices transmit handover request messages simultaneously through NFC links, then handover switching can be initiated, but handover collisions occur causing conflicts and transmission inefficiencies
Solution Approach 1:
The patent applies preliminary action by having electronic devices generate and include random numbers in handover request messages before actual handover execution. This pre-established random number allows devices to determine collision status and resolution priority in advance, enabling efficient collision handling without retransmission delays.
Solution Approach 2:
The patent implements feedback mechanisms where devices monitor whether they receive their own handover request messages from other devices. Based on this feedback, devices can identify collision scenarios and apply resolution rules (comparing random numbers) to determine which device should proceed with handover, ensuring reliable conflict resolution.
2Speed
If handover request messages are transmitted without collision resolution mechanisms, then transmission speed is maintained, but conflicts arise when multiple devices attempt simultaneous handovers
Solution Approach 1:
The patent introduces random numbers as intermediary elements in handover request messages. These random numbers serve as mediators that enable devices to objectively determine collision status and resolution priority without requiring complex negotiation protocols, thus maintaining fast handover speed while resolving conflicts.
Solution Approach 2:
The patent changes the state of handover messages by incorporating random number parameters. This parameter addition transforms the handover process from a potentially conflicting simultaneous operation into a resolvable sequence based on random number comparison, eliminating harmful collision effects while preserving transmission speed.
Data Source
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AI summary
The present invention relates to an electronic device and a method of operating the electronic device. There are provided an electronic device and a method of operating the electronic device that may more effectively resolve handover request collisions by using a specific field value included in a handover request message.