60 GHz Wireless Modulation Adaptation for Power and Channel Trade-offs
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Solution Overview
Problem
Current devices operating in the 60 GHz band face inefficiencies and high power consumption, particularly handheld devices which struggle to communicate effectively using either single-carrier modulation or OFDM, leading to battery drain issues with OFDM and reduced efficiency with single-carrier modulation.
Innovation Solution
The implementation of a method and apparatus that enable dual modes of communication in wireless devices, allowing handheld devices to use single-carrier modulation for low power consumption while enabling high-power devices to use OFDM for efficient channel utilization, by incorporating both single-carrier and OFDM modulators and demodulators, along with a communication module that adjusts modulation schemes based on device power capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If OFDM modulation is used to overcome channel-path loss in the 60 GHz band, then communication reliability is improved, but power consumption increases
Solution Approach 1:
The patent implements dynamic modulation scheme selection that adapts between OFDM and single-carrier modulation based on communication conditions and power availability. The system dynamically switches between high-reliability OFDM for stationary devices and low-power single-carrier for handheld devices, resolving the contradiction between reliability and power consumption through adaptive behavior rather than fixed configuration.
2Use of energy by moving object
If single-carrier modulation is used to reduce power consumption, then power efficiency is improved, but channel utilization efficiency deteriorates
Solution Approach 1:
The patent applies different modulation schemes to different device types based on their specific characteristics. Handheld devices use single-carrier modulation optimized for low power consumption, while stationary high-power devices use OFDM optimized for channel utilization. This local optimization resolves the contradiction by allowing each device category to operate at its efficiency peak without compromising the other.
3Adaptability or versatility
If dual-mode modulation support is implemented, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent segments the communication system into distinct modulation handling paths - one for OFDM and one for single-carrier modulation. Each demodulator is specialized for its specific modulation type, avoiding the need for a single complex universal demodulator. This segmentation reduces overall complexity while maintaining dual-mode support, as each component can be optimized independently for its specific function.
Data Source
AI summary
In one or more embodiments, system(s), method(s), integrated circuit(s), physical layer(s), apparatus(es), System-on-Chip (SoC), various other hardware, computer-readable and/or executable instructions, and/or technique(s) are described that enable lower power consumption and/or maximize channel utilization for devices communicating wirelessly in the 60 GHz range. These embodiments enable handheld devices to use less power when communicating with wall-powered or other higher-powered devices while still enabling the wall-powered devices to communicate effectively with each other by maximizing channel utilization.