FHSS Hotspot Device Concurrent Multi-Device Communication
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Solution Overview
Problem
Current FHSS technologies are inadequate for concurrent communication with multiple devices over a range that falls between WPAN and WLAN, as they result in high power consumption, latency, and radiation, and are not cost-effective for multi-user wireless communications.
Innovation Solution
The development of an FHSS-hotspot device that enables concurrent multimedia communication over multiple frequencies with multiple FHSS peripheral devices, integrating wide-band analog baseband and RF circuitry, and employing dynamic frequency selective balancing, interference mitigation, and power control techniques to reduce radiation and latency while maintaining low power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional FHSS technology is used for concurrent communication with multiple devices, then communication capability is improved, but power consumption increases
Solution Approach 1:
The patent segments the communication function by introducing a master device that coordinates multiple slave devices. Each slave device communicates only with the master, dividing the communication burden and allowing individual devices to operate at lower power levels while maintaining concurrent multi-device communication capability through the master's coordination.
Solution Approach 2:
The master device acts as an intermediary between multiple slave devices and the network. Slave devices communicate through the master rather than directly with each other or the network, reducing their individual power consumption while enabling concurrent communication. The master manages frequency hopping sequences and coordinates transmissions across multiple slaves.
2Adaptability or versatility
If conventional FHSS technology is used for concurrent communication with multiple devices, then communication capability is improved, but latency increases
Solution Approach 1:
The master device performs preliminary actions by pre-coordinating frequency hopping sequences and transmission schedules for multiple slave devices. This advance coordination establishes synchronized communication patterns that reduce latency during actual data transmission, as devices already know when and at what frequency to communicate.
Solution Approach 2:
The patent implements periodic frequency hopping sequences where slave devices transmit at regular, coordinated intervals. This periodic structure creates predictable communication patterns that reduce latency by eliminating random access delays and collision resolution time, while the master coordinates these periodic transmissions across multiple slaves.
3Adaptability or versatility
If conventional FHSS technology is used for concurrent communication with multiple devices, then communication capability is improved, but radiation increases
Solution Approach 1:
The communication load is segmented across multiple low-power slave devices that communicate only with the master. Each slave device transmits at lower power levels compared to a single device attempting direct high-power communication, thereby reducing overall radiation while maintaining concurrent communication capability through the distributed slave network.
Solution Approach 2:
The master device serves as an intermediary that consolidates communication traffic. Multiple slave devices transmit low-power signals to the master, which then handles network communication. This intermediary structure allows slaves to use lower transmission power (reducing radiation) while still achieving concurrent multi-device communication capability.
4Adaptability or versatility
If conventional FHSS technology is used for concurrent communication with multiple devices, then communication capability is improved, but cost increases
Solution Approach 1:
The patent employs multiple inexpensive slave devices that can be manufactured at low cost. Rather than requiring each device to have full concurrent communication capability, the system uses many simple, low-cost slave units that communicate through a single master, achieving multi-device functionality through quantity of simple units rather than complexity of individual units.
Solution Approach 2:
The master device is designed with multi-functionality to handle coordination of multiple slave devices, frequency hopping sequence management, and network communication. This universal master design allows the system to achieve concurrent multi-device communication capability through one sophisticated device plus many simple devices, reducing overall system cost compared to making every device fully capable.
Data Source
AI summary
A wireless wideband transceiver may be able to communicate with multiple frequency-hopped spread-spectrum (FHSS) devices concurrently over multiple frequencies over a short range by including a plurality of digital chains corresponding to the FHSS physical channels, individually and dynamically compensated for in-phase/quadrature imbalance in the transmit and/or receive portion. To further improve communications the transceiver may also mitigate cross interference between adjacent channel signals that are received and/or transmitted simultaneously, avoid false reception and/or transmission of co-channel signals, delay respective FHSS channels transmissions relative to other channels transmissions, speed up connection to FHSS devices and coordinate Time Division Duplexing (TDD) operation according to application dependent TX/RX binary pattern. A device that includes such a transceiver (FHSS-hotspot) may enable the concurrent usage of multiple commercially available FHSS peripheral devices without the need for additional personal host devices to be carried along with them, and in addition enable the concurrent usage of multiple commercially available FHSS personal data devices while reducing their radiation and/or latency and/or usage cost and/or power, to establish a localized multi-device multimedia session, and/or to interface with a communications network to communicate with remote parties, and/or to interface with broadcast devices to stream contents.