Field Journal

Coverage and Capacity Planning for CBRS based LTE Networks
The Celona Network Planner is a free tool that provides the capability to estimate the CBRS (LTE band 48) based private mobile network resources required for a specific location or facility. It takes into account the available spectrum, coverage area and capacity requirements.
Panel Discussion at WLPC: Wi-Fi and CBRS based LTE Fundamentals
In this episode of Field Journal, recorded during 2020 WLAN Professionals Conferences in Phoenix, we have enterprise wireless experts from different backgrounds and organizations discuss the fundamentals of Wi-Fi and CBRS based LTE. A must watch for anyone who needs to get practical advice on design and deployment of either technology.
CBRS Timeline and Organizational Bodies - WPLC 2020
An overview of the organizations that are involved in CBRS 3.5 GHz wireless spectrum regulation, standards creation, and adapting LTE and 5G solutions for private mobile networks. Understand the role the FCC, WinnForum, and CBRS Alliance all play in bringing this technology to market.
CBRS Tiered Spectrum Details
Learn about the three-tier shared spectrum licensing model regulated by the FCC for operation of private mobile network in the CBRS 3.5 GHz band. This shared licensing model is necessary to protect incumbents and priority access license (PAL) holders from interference, while allowing general authorized access (GAA) for broad adoption.
CBRS Channel Structure, Architecture, and Operations
Learn how LTE and 5G use the CBRS spectrum and integrate with the Spectrum Access System (SAS). 3GPP defines LTE Band 48 for CBRS operation and defines channel numbering. The FCC defines two classes of devices for power and height restrictions and requires integration with SAS for incumbent protection, while the WinnForum defines SAS operational protocols.
CBRS based LTE Network Planning
A review of the steps required to plan a CBRS network based on LTE are discussed, including wireless coverage and capacity planning, SAS spectrum availability inquiry, radio scaling, predictive design, site surveying, installation requirements for a Certified Professional Installer (CPI), and SIM subscriber management. Additional considerations for enterprise network integration, zero-touch deployment, dual-SIM operation, and the user endpoint (UE) device ecosystem are discussed.
Background Information on 4G/5G Cellular Wireless
An introduction to cellular technologies including 3G, 4G LTE, and 5G are provided along with an overview of the roles both the ITU and 3GPP have in technical specifications and standards development.
4G LTE Terminology and Architecture
Learn about the 4G LTE cellular system, including radio access network (RAN), evolved packet core (EPC), and evolved packet system (EPS). A review of key EPC components and interfaces is included, including the mobility management entity (MME), home subscriber server (HSS), serving gateway (S-GW), packet gateway (P-GW), and policy and charging rules function (PCRF).
CBRS based LTE - TDD Physical Layer Overview
A review of the 4G LTE spectrum deployment methods, including frequency division duplex (FDD) and time division duplex (TDD), with an in-depth review of the TDD-LTE frame structure specific to operation in the CBRS 3.5 GHz spectrum band.
CBRS based LTE - Client Access Procedures
An overview of 4G LTE camping and attach procedures for initial client access and EPS bearers for quality of service. Client states and tracking capabilities are described for detached, idle, and active states. EPS bearer setup end-to-end and LTE radio scheduling for different QoS class identifiers (QCI) are reviewed.
CBRS based LTE - Frequency Reuse and Roadmap to 5G
A review of LTE interference handling through inter-cell interference coordination (ICIC) is provided as well as a review of key characteristics coming with the adoption of 5G New Radio.
Opportunities with CBRS based Private LTE with San Jose State University
Director of Network Services at San Jose State University (SJSU), Shai Silberman, is our guest for this episode of the Field Journal. Shai reviews his priorities for wireless networking at SJSU and how CBRS based private LTE can help tackle a new generation of connectivity challenges across the campus.
Real world Performance of CBRS based Private LTE with University of California, Santa Barbara
Kevin Schmidt from the University of California at Santa Barbara (UCSB) is our guest for this episode of the Field Journal. As the Director of Networking, Communications and Security Services, Kevin has been looking at ways to improve wireless connectivity for IoT infrastructure at the UCSB campus and was kind enough to share initial test results from his outdoor CBRS LTE deployment.
CBRS Has Arrived! A Real-Life CBRS Case Study & Predictive Design Demo
Presented at Wireless Technology Forum 2020 (WTF2020), Andrew von Nagy (Celona) and Djamel Ramoul (iBwave) delivered this presentation that examines a case study of a real CBRS network, showing how the predictive design was successfully completed and what was considered to do so. In it, they discuss the unique challenges of planning a CBRS network compared to that of a Wi-Fi network, as well as the advantages they're seeing of using CBRS in real-life deployments.
Farm of the Future: Celona CBRS for the Rural Cloud Initiative
Learn about the Rural Cloud Initiative and how Celona provided the private LTE network an integrated solution of SIM cards, outdoor access points operating in the CBRS spectrum, on-premises Evolved Packet Core (EPC) software and cloud-hosted network operations console.