VLP Mode Power Control for 6 GHz Interference Management
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Solution Overview
Problem
The Very Low Power (VLP) mode in the 6 GHz band faces challenges in power control to minimize interference with licensed operators, requiring precise power management to ensure successful communication while adhering to regulatory limits.
Innovation Solution
The implementation of a power control mechanism where communication devices in the VLP mode set and adjust transmission power based on Modulation and Coding Scheme (MCS), bandwidth, and Received Signal Strength Indication (RSSI), with a margin to account for measurement errors, to ensure reliable communication without exceeding interference thresholds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If transmission power is increased to ensure successful packet reception, then reliability of communication is improved, but interference to licensed operators increases
Solution Approach 1:
The system dynamically adjusts transmission power parameters based on channel conditions, distance, and packet requirements. By changing power levels adaptively rather than using fixed high power, the system achieves reliable communication when needed while minimizing interference during normal operation.
Solution Approach 2:
The system transmits at minimum necessary power levels rather than maximum power, using excessive power only when absolutely required for successful reception. This partial action approach ensures reliability is achieved only to the extent necessary, avoiding unnecessary interference.
2Object-generated harmful factors
If transmission power is reduced to minimize interference, then harmful effects on licensed operators are reduced, but reliability of communication deteriorates
Solution Approach 1:
The system uses feedback mechanisms where receiving devices report signal quality and channel conditions back to transmitting devices. This feedback enables dynamic power adjustment, allowing the system to maintain reliability by increasing power only when channel conditions warrant it, while minimizing interference when conditions are favorable.
Solution Approach 2:
The system transitions from static power levels to dynamic power control, continuously adapting transmission power based on real-time channel conditions, distance variations, and packet priority. This dynamic approach resolves the contradiction by making power levels flexible rather than fixed.
3Ease of operation
If power control mechanisms are simplified for ease of operation, then ease of operation is improved, but precision of power management deteriorates
Solution Approach 1:
The power control system operates autonomously using pre-defined algorithms and protocols. Devices automatically calculate appropriate power levels based on embedded formulas considering distance, channel conditions, and packet requirements, eliminating the need for manual power configuration while maintaining precise control.
Solution Approach 2:
The system incorporates pre-calculated power tables and lookup structures that provide guidance for power selection. By preparing power management data in advance based on typical scenarios, the system achieves both ease of operation through simplified selection processes and precision through pre-optimized power levels.
Data Source
AI summary
The disclosure provides techniques for power control for communications under a Very Low Power (VLP) mode. A communication device includes: processing circuitry, to encode a message to be transmitted to a second communication device, to indicate a setpoint, wherein the setpoint is defined as a minimum power at which a packet is required to be transmitted under a set of packet parameters, such that the packet could be successfully received by the communication device; and a transceiver, to transmit the message to the second communication device, and receive the packet transmitted at a power determined based on the setpoint and a margin, from the second communication device, wherein the margin is determined based on a probability of measurement errors.