CBRS Channel Moving Function for Uninterrupted Service Continuity
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Solution Overview
Problem
The existing wireless communication systems using the Citizens Broadband Radio Service (CBRS) band face interruptions when the spectrum access system (SAS) terminates a communication channel grant, leading to temporary network disruptions for user equipment (UE) due to the need for immediate channel relinquishment to prevent interference with incumbent or priority users.
Innovation Solution
A communication system with a channel moving function that redirects communications from a terminated CBRS band channel to another channel provided by a second base station or cell within the same or non-CBRS band before the initial channel is terminated, ensuring seamless service continuity by utilizing overlap coverage areas and idle or backup channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the SAS terminates a grant to a communication channel in the CBRS band to prevent interference with incumbent or priority users, then spectrum sharing compliance is improved, but communication service continuity deteriorates due to network disruption
Solution Approach 1:
The system performs preliminary actions by establishing a backup communication path before the original channel is terminated. When the SAS grants permission to use a CBRS channel, the system proactively identifies and prepares alternative channels or base stations in advance, so that when termination is required for incumbent user protection, seamless switching can occur without service interruption
Solution Approach 2:
The patent introduces an intermediary mechanism in the form of a backup communication path that mediates between the need to terminate CBRS channel usage and the need to maintain service continuity. This intermediary path allows communication to be redirected through alternative base stations or channels, preventing direct conflict between spectrum sharing requirements and service reliability
2Adaptability or versatility
If the base station stops transmissions within 60 seconds after grant termination, then spectrum access compliance is improved, but service availability deteriorates due to temporary network outage
Solution Approach 1:
The system establishes backup communication paths in advance before the 60-second termination window begins. By preparing alternative channels and coordinating with neighboring base stations beforehand, the system ensures that service can be maintained throughout the termination period without outage, while still complying with the requirement to stop transmissions on the original channel within 60 seconds
Solution Approach 2:
The patent merges communication resources by combining the original base station's coverage with neighboring base stations' resources. When a CBRS channel grant is terminated, the system merges services by redirecting traffic to adjacent cells or base stations, effectively combining multiple resources to maintain continuous service availability while complying with spectrum access requirements
Data Source
AI summary
A communication system with uninterrupted service in citizens broadband radio service (CBRS) band is provided. The communication system includes a first base station that is in communication with at least one core network of a wireless communication service provider. The first base station is further in communication with a spectrum access system (SAS) that allocates communication channels in the CBRS band. The first base station uses the CBRS band to communicate with user equipment (UE) over a first CBRS band communication channel. A channel moving function is configured to redirect communications from the first CBRS band communication channel when a termination of grant to the first CBRS communication channel is issued by the SAS to a second communication channel provided by a second base station that provides a service coverage area for the UE through at least a second RP before the first CBRS communication channel is terminated.