Neighbor Awareness Networking in 6 GHz via AFC Coordination
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Solution Overview
Problem
There is a need for mechanisms to enable neighbor awareness networking (NAN) operations in the 6 GHz frequency band, where existing technologies do not provide adequate solutions for establishing NAN communications due to regulatory requirements and spectrum sharing constraints, particularly for devices without access to infrastructure networks.
Innovation Solution
NAN devices with automated frequency coordination (AFC) capabilities can advertise their 6 GHz frequency/channel availability and transmit power modes in other frequency bands, such as 2.4 GHz and 5 GHz, to establish NAN data paths and ranging operations, using modified NAN frames to indicate AFC capabilities and operating modes, allowing for compliant operations in the 6 GHz band.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If NAN devices operate in 6 GHz frequency band without infrastructure network access, then direct peer-to-peer communication capability is improved, but regulatory compliance and spectrum sharing constraints create operational limitations
Solution Approach 1:
Devices perform automated frequency coordination (AFC) checks and obtain frequency authorization before attempting NAN operations in the 6 GHz band. The system pre-validates the frequency channel through AFC server communication, ensuring regulatory compliance is established prior to direct peer-to-peer communication, thus resolving the contradiction between versatility and reliability.
Solution Approach 2:
An automated frequency coordination (AFC) server acts as an intermediary between NAN devices and regulatory authorities. The AFC server validates device requests, provides frequency authorization, and ensures spectrum sharing constraints are met, enabling direct communication while maintaining regulatory compliance through this mediating layer.
2Productivity
If devices advertise 6 GHz capabilities in other frequency bands (2.4 GHz, 5 GHz), then NAN connection establishment efficiency is improved, but frame structure complexity increases due to modified NAN frames requiring AFC capability indications
Solution Approach 1:
NAN frames are designed with multi-functionality to operate across multiple frequency bands (2.4 GHz, 5 GHz, and 6 GHz). The frame structure includes universal fields that can indicate AFC capabilities and power modes applicable to any band, allowing devices to advertise 6 GHz capabilities through the same frame structure used for other bands, thus improving efficiency without proportionally increasing complexity.
Solution Approach 2:
The NAN frame structure is modified by adding parameter fields that indicate AFC capabilities and transmit power modes specific to 6 GHz operations. These parameter changes are incremental and targeted, adding only the necessary information elements (such as AFC capability flags and power mode indicators) rather than redesigning the entire frame structure, thereby balancing enhanced functionality with manageable complexity.
Data Source
AI summary
This disclosure describes systems, methods, and devices related to neighbor awareness networking (NAN) operations in the 6 GHz frequency band. A NAN device may generate a first NAN frame including a first indication of a NAN operation capability, and a second indication of a transmit power of the NAN device. The NAN device may send the first NAN frame and may identify a second NAN frame received from a second NAN device, the second NAN frame including a third indication of the NAN operation capability, and a fourth indication of a transmit power of the second NAN device. The NAN device may determine, based on the transmit power of the NAN device and the transmit power of the second NAN device, an operation parameter for the 6 GHz frequency band. The NAN device may establish, based on the operation parameter, a NAN connection using the 6 GHz frequency band.