Single-Chip WLAN and Bluetooth CMOS Integration
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Solution Overview
Problem
The increasing integration of wireless communication services in handheld devices leads to bulky devices due to separate integrated circuits for each service, resulting in higher power consumption and reduced battery life, as well as physical bulkiness and increased chip count.
Innovation Solution
A single chip CMOS substrate integrates WLAN and Bluetooth radios, sharing common low noise amplifier, power amplifier, crystal oscillator, and phase locked loop circuits for both services, enabling efficient reception and transmission of signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate integrated circuits are used for each wireless communication service, then each service can be independently implemented, but the device size increases and becomes bulky
Solution Approach 1:
The patent combines multiple wireless communication services (WLAN and Bluetooth) onto a single chip by integrating their respective receiver and transmitter circuits on a common substrate. The WLAN receiver circuit, Bluetooth receiver circuit, WLAN transmitter circuit, and Bluetooth transmitter circuit are all implemented on the same chip, sharing common components such as low noise amplifiers, mixers, and local oscillators, thereby reducing device volume while maintaining service versatility
Solution Approach 2:
The patent implements multi-functionality by designing a single chip that can simultaneously perform WLAN and Bluetooth communication functions. The chip includes integrated circuits for receiving and transmitting both WLAN signals and Bluetooth signals, allowing the device to support multiple wireless communication standards through a unified platform, thus achieving versatility without increasing device size
2Adaptability or versatility
If separate integrated circuits are used for each wireless communication service, then service functionality is maintained, but power consumption increases and battery life reduces
Solution Approach 1:
The patent merges WLAN and Bluetooth communication functions into a single integrated circuit chip. By sharing common components such as low noise amplifiers, mixers, local oscillators, and other analog/digital circuitry between WLAN and Bluetooth receivers and transmitters, the total power consumption is reduced compared to using separate dedicated circuits for each service, thereby extending battery life while maintaining full functionality
Solution Approach 2:
The patent creates a universal communication chip that handles both WLAN and Bluetooth protocols. This multi-functional chip consolidates the power requirements of multiple wireless services into a single integrated platform, reducing overall power consumption through shared resources and more efficient resource management compared to multiple separate circuits operating independently
3Adaptability or versatility
If separate integrated circuits are used for each wireless communication service, then service independence is achieved, but chip count increases
Solution Approach 1:
The patent merges WLAN and Bluetooth communication functions into a single integrated circuit chip, reducing the chip count from multiple separate circuits to one unified chip. The design integrates receiver circuits, transmitter circuits, and supporting components for both WLAN and Bluetooth services on a common substrate, simplifying the overall device architecture while maintaining service independence through software or control logic
4Adaptability or versatility
If separate integrated circuits are used for each wireless communication service, then service-specific optimization is possible, but ancillary circuitry must be replicated
Solution Approach 1:
The patent merges WLAN and Bluetooth circuits onto a single chip, eliminating the need to replicate ancillary circuitry such as low noise amplifiers, mixers, local oscillators, and other supporting components. Each service retains its optimized signal processing path while sharing common infrastructure, thus reducing device complexity and component count while preserving service-specific performance characteristics
Data Source
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AI summary
Aspects of a method and system for single chip WLAN and Bluetooth radios on a single CMOS substrate are presented. Aspects of the system may include a WLAN receiver circuit within a substrate of a single chip that enables reception of WLAN signals, and a Bluetooth receiver circuit within the same substrate that enables reception of Bluetooth signals. The WLAN receiver circuit and Bluetooth receiver circuit may utilize a single low noise amplifier circuit that enables reception of the WLAN signals and Bluetooth signals. Aspects of the system may also include a WLAN transmitter circuit within a substrate of a single chip that enables transmission of WLAN signals, and a Bluetooth transmitter circuit within the same substrate that enables transmission of Bluetooth signals. The WLAN transmitter circuit and Bluetooth transmitter circuit may utilize a single power amplifier circuit that enables transmission of the WLAN signals and Bluetooth signals.