Spectral Allocation Broadcast for White Space Access
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Solution Overview
Problem
Users face challenges in accessing and transmitting wireless signals in regulated spectrum white spaces due to the requirement of an internet connection to query a central database for spectral allocation information, which is burdensome and often costly.
Innovation Solution
A network system that broadcasts spectral allocation information via radio signals, allowing wireless devices to receive and analyze this information without needing an additional communication channel or internet connection, enabling them to determine available bands for transmission within the regulated spectrum.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If users query a central database for spectral allocation information via internet connection, then they can obtain accurate spectral allocation information, but it increases device complexity and operational burden
Solution Approach 1:
The patent applies preliminary action by pre-broadcasting spectral allocation information from the central database to transmitters in the coverage area before users need to access it. This allows users to receive information locally without needing to connect to the internet at the moment of use, thereby reducing operational burden while ensuring information availability.
Solution Approach 2:
The patent introduces an intermediary mechanism where transmitters act as local intermediaries between the central database and user devices. These transmitters store and broadcast spectral allocation information locally, mediating the information delivery so users don't need direct internet access to the central database, thus reducing device complexity requirements.
2Loss of information
If users establish internet connection to access central database, then they can retrieve spectral allocation information, but it increases operational cost and time
Solution Approach 1:
The system performs preliminary action by pre-populating local transmitters with spectral allocation information from the central database. Users can immediately receive this information locally without spending time establishing internet connections or querying remote databases, thus eliminating connection establishment time and accelerating information retrieval.
Solution Approach 2:
The patent applies copying by creating local copies of spectral allocation information at transmitter locations. Instead of requiring users to access the original central database via internet, the system distributes copies to local transmitters that broadcast the information, thereby eliminating internet connection time and reducing operational delays.
3Ease of operation
If spectral allocation information is broadcast via radio signals, then wireless devices can receive information without internet connection, but it requires additional transmission infrastructure
Solution Approach 1:
The patent applies universality by enabling transmitters to perform multiple functions: they continue their primary broadcasting role while simultaneously storing and re-broadcasting spectral allocation information. This multi-functionality allows the system to provide enhanced user operation ease without requiring completely new infrastructure, as existing transmitters are utilized for the additional information dissemination function.
Data Source
AI summary
Methods for transmitting information in a regulated spectrum and networks configured to operate within a regulated spectrum (and optionally, within a given geographic region) are disclosed. The methods generally include receiving or transmitting radio signals encoded with spectral allocation information, analyzing the spectral allocation information to determine available bands in the regulated spectrum for signal transmission, and transmitting signals on at least one of the available bands in the regulated spectrum. The spectral allocation information includes restriction(s) on a bandwidth or bandwidth range in the regulated spectrum; The network generally includes a central database storing the spectral allocation information, a transmitter configured to transmit radio signals encoded with the spectral allocation information, and a receiving device configured to receive the radio signals, analyze the available bands in the regulated spectrum from the spectral allocation information, and transmit signals on at least one of the available bands.