Multi-Mode Transceiver Layout for Parallel Wireless Reception
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Solution Overview
Problem
Existing wireless devices face interference issues when multiple wireless protocols operate in the same frequency band, leading to inefficiencies and potential packet loss due to time-shared reception, which affects the quality of service and battery life in wireless sensor networks.
Innovation Solution
A multi-mode transceiver arrangement with a single transmission path and multiple parallel receive paths, sharing a single antenna, equipped with modulators, frequency reference elements, demodulators, and a controller, allowing simultaneous communication with multiple wireless networks by processing signals from different frequency bands without time-sharing, thereby reducing interference and optimizing coexistence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If time-shared reception is used for multiple wireless protocols, then device complexity is reduced, but packet loss increases and quality of service deteriorates
Solution Approach 1:
The receiver is segmented into multiple parallel receive paths, each dedicated to a specific wireless protocol (e.g., Zigbee, Thread, BLE). This allows simultaneous reception of multiple protocols without time-sharing, eliminating packet loss while maintaining manageable complexity through modular architecture.
Solution Approach 2:
A single transceiver arrangement performs multiple functions by incorporating parallel receive paths for different wireless standards. The system universally handles Zigbee, Thread, and BLE protocols simultaneously, replacing the need for separate dedicated receivers while improving reliability.
2Adaptability or versatility
If multiple wireless protocols operate in the same frequency band, then adaptability increases, but interference increases and reliability decreases
Solution Approach 1:
The frequency spectrum is segmented into separate receive paths, each tuned to specific frequency bands used by different protocols. This segmentation allows simultaneous operation of multiple protocols in the same overall frequency band without mutual interference, as each protocol is processed independently in its own signal path.
3Productivity
If parallel receive paths are implemented for simultaneous reception, then productivity increases, but device complexity increases
Solution Approach 1:
A single transceiver unit is designed to universally support multiple wireless protocols through parallel receive paths. This multi-functional approach enables simultaneous reception of Zigbee, Thread, and BLE without requiring separate physical transceivers, achieving high productivity while controlling overall system complexity through integration.
Solution Approach 2:
Multiple receive paths are merged into a single transceiver arrangement that shares common components such as the antenna, frequency reference element, and controller. This combining approach enables simultaneous reception of multiple protocols while reducing the total component count and managing complexity through shared resources.
4Loss of substance
If a single antenna is shared by transmission and receive paths, then loss of substance decreases, but interference increases
Solution Approach 1:
The antenna's operational bandwidth is segmented into different frequency ranges handled by specific receive paths. The transmission path and receive paths are frequency-division segmented, allowing the single antenna to efficiently serve multiple functions while minimizing self-interference through frequency separation and selective filtering in each path.
Data Source
AI summary
A multi-mode transceiver arrangement configured to provide for transmission and reception of signalling of a plurality of wireless sensor network protocols, the transceiver comprising;a single transmission path and a plurality of parallel receive paths;said transmission path including a modulator element configured to modulate, at any one time, a signal for transmission in accordance with a particular one of the plurality of wireless standards and a frequency reference element configured to provide a reference frequency to generate signalling for the antenna at a predetermined frequency;said receive paths each configured to receive signalling over a different, predetermined frequency band and including a demodulator to provide a demodulated signal for processing by a controller configured to provide signals to the transmission path and receive signals from the demodulators for symbol recognition thereby enabling the multi-mode transceiver to communicate with a plurality of wireless sensor networks simultaneously.