Spectrum Selector for Dual-Mode Wireless Transceivers
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Solution Overview
Problem
Wireless communication systems face constraints due to spectrum shortages, particularly in delivering high data rate multimedia services, as licensed spectrum is limited and expensive, while unlicensed spectrum remains underutilized.
Innovation Solution
A system and method that combines licensed and unlicensed spectrum transceivers, utilizing a spectrum selector to dynamically switch between them based on interference and capacity events, allowing for increased throughput and coverage by allocating resources effectively between guaranteed and best effort services.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If licensed spectrum is used for wireless communication, then service reliability is improved, but spectrum availability and cost-effectiveness deteriorate
Solution Approach 1:
The patent combines licensed and unlicensed spectrum resources into a unified communication system. The base station integrates both spectrum types and dynamically allocates them to different services, merging the reliability of licensed spectrum with the availability of unlicensed spectrum to resolve the contradiction between service reliability and spectrum availability.
Solution Approach 2:
The patent implements dynamic spectrum allocation where the base station continuously monitors service requirements and automatically adjusts spectrum assignment in real-time. Guaranteed services receive licensed spectrum for reliability, while best-effort services utilize unlicensed spectrum for capacity, with dynamic switching between spectrum types based on current network conditions.
2Reliability
If licensed spectrum is used for wireless communication, then service quality is improved, but resource cost deteriorates
Solution Approach 1:
The patent applies different spectrum types to different service categories based on their specific requirements. Guaranteed services (requiring high quality) are allocated licensed spectrum locally, while best-effort services (tolerating lower quality) use unlicensed spectrum, optimizing resource cost by matching spectrum characteristics to service needs.
Solution Approach 2:
The patent changes the spectrum allocation parameter dynamically based on service type and network conditions. The base station adjusts which spectrum type (licensed or unlicensed) is assigned to each service, changing the resource cost parameter to optimize the balance between service quality and resource expenditure.
3Quantity of substance
If unlicensed spectrum is used for communication, then spectrum availability is improved, but interference and reliability deteriorate
Solution Approach 1:
The patent segments services into two categories: guaranteed services that require reliability and best-effort services that can tolerate interference. By segmenting the service types and assigning them to appropriate spectrum types, the system utilizes unlicensed spectrum for availability while protecting guaranteed services from interference impacts.
Solution Approach 2:
The base station acts as an intermediary that manages the use of unlicensed spectrum. It monitors interference conditions in unlicensed bands and controls allocation accordingly, mediating between the availability benefits of unlicensed spectrum and the harmful interference effects by preventing degraded services from impacting guaranteed services.
4Productivity
If dual spectrum transceivers are deployed, then throughput and coverage are improved, but system complexity increases
Solution Approach 1:
The base station is designed with multi-functionality to handle both licensed and unlicensed spectrum operations. It performs unified resource allocation, interference management, and service scheduling across both spectrum types, reducing system complexity by consolidating multiple functions into a single universal platform rather than separate specialized systems.
Data Source
AI summary
A system and method comprise a spectrum selector, an unlicensed transceiver, and a licensed transceiver. The spectrum selector determines whether communications will be transmitted over unlicensed spectrum or licensed spectrum. Based upon the determination, the spectrum selector transmits the communications to the unlicensed transceiver or the licensed transceiver. In addition, the spectrum selector may transmit a first portion of the communications to the unlicensed transceiver and a second portion of the communications to the licensed transceiver. On the receiving side, the spectrum selector monitors the unlicensed transceiver and the licensed transceiver, receives the communications from the licensed transceiver and/or the unlicensed transceiver, and transmits the communications to an access device. The unlicensed transceiver transmits and/or receives communications over unlicensed spectrum. The licensed transceiver transmits and/or receives communications over licensed spectrum.