Dynamic Time-Frequency Resource Switching in NAN Service Groups
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Solution Overview
Problem
In Neighbor Awareness Networking (NAN) technology based on 802.11 standards, data transmission efficiency is low due to devices consistently using initially agreed time-frequency resources, even when data traffic increases.
Innovation Solution
A method for switching time-frequency resources within a service group, where devices receive and send resource switching messages to determine and switch to resources that better satisfy their requirements, allowing for optimal resource allocation and usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If devices in the service group always transmit data by using the initially agreed time-frequency resource, then the system maintains simplicity and stability in resource allocation, but data transmission efficiency becomes low when data traffic increases
Solution Approach 1:
The patent implements dynamic time-frequency resource allocation by allowing devices to switch from initial resources to alternative resources based on current data traffic conditions. The system transitions from static initial resource assignment to dynamic resource selection, where devices can determine whether to use initial resources or alternative resources depending on traffic load, thereby improving transmission efficiency without requiring complete resource reallocation complexity
Solution Approach 2:
The system performs preliminary action by pre-configuring alternative time-frequency resources before traffic increase occurs. When data traffic increases, devices can immediately switch to these pre-prepared alternative resources without complex real-time negotiation, thus improving transmission efficiency while maintaining relatively simple resource management
2Productivity
If devices switch to alternative time-frequency resources when initial resources are insufficient, then data transmission efficiency improves, but the risk of resource conflict increases
Solution Approach 1:
The patent implements feedback mechanisms where devices monitor the usage status of alternative time-frequency resources before switching. When a device detects that alternative resources are available (not being used by other devices), it switches to those resources. This feedback-based resource selection reduces conflict risk while maintaining improved transmission efficiency through dynamic resource utilization
Solution Approach 2:
The system applies local quality by allowing different devices to use different resource sets (initial resources or alternative resources) based on their local traffic conditions and resource availability detection. This localized resource selection approach enables efficient resource utilization while minimizing conflicts, as each device independently determines its optimal resource based on local conditions
Data Source
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AI summary
Embodiments of the present invention relate to the communications field, and provide a resource switching method, an apparatus, and a system, so as to switch a time-frequency resource used by a service group when the time-frequency resource used by the service group does not match a feature of data transmission, thereby improving data transmission efficiency. The resource switching method includes: receiving, by a first device, a first resource switching message sent by a second device, where the first device and the second device belong to a same service group, the first resource switching message is used to instruct devices in the service group to perform resource switching, the first resource switching message includes first resource information, and the first resource information is used to indicate a first resource satisfying a resource switching requirement of the second device; determining, by the first device, a second resource in the first resource, where the second resource is a resource satisfying a resource switching requirement of the first device; and sending, by the first device, a second resource switching message, where the second resource switching message includes second resource information, and the second resource information is used to indicate the second resource.