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  The new Wray Castle Hub gives you unlimited access to a comprehensive library of material covering key technology and business topics within the telecoms industry.   The Wray Castle Hub builds your knowledge, empowers your professional development, and includes access to new courses that will cover the latest technology developments throughout your subscription. Endlessly flexible and applicable to any role within the telecoms industry a subscription to Wray Castle Hub is your ultimate learning resource. You can choose to follow one of our suggested learning pathways, build your own or dip into the learning material module by module. Learn more. What courses are included...

Our mission at Wray Castle we empower the global telecoms world by developing the specialist knowledge, skills and competencies organisations need to build, maintain, optimise and operate the cutting-edge communications networks of today and tomorrow. As part of that commitment and to support professionals across the industry and encourage lifelong learning, we’ve launched Wray Castle Connect, the new networking hub for telecoms professionals. Wray Castle Connect provides its members with regular blogs, recorded training content, and a range of programs and events, offering various activities to engage and educate. Wray Castle Connect is a welcoming place with an open door...

Recorded: 23rd May 2022 The developments within 4G LTE provides much of the foundation for 5G. In fact, 5G incorporates 4G (but not 2G or 3G) as part of the ongoing 5G system development. Whilst 5G introduces more flexibility and efficiency into the overall cellular system (in a number of ways, including enabling efficient use of mm Wave spectrum), 4G will remain an integral part of the system for many years to come. Effective technology decision making is made easier because many of the improvements that LTE Advanced and Advanced Pro bring to cellular will remain relevant and fully utilised as...

Recorded: 12th April 2022 This webinar aims to clarify why there is a requirement for interconnecting legacy LMR technologies with 4G/5G systems, and explain the steps taken by 3GPP and the relevant LMR Standards Authorities to facilitate interworking.  It will also highlight some of the challenges associated with interconnecting networks possessing operational and functional requirements, and service limitations, that are so different. Topics include: Interconnecting Networks 3GPP Interworking Function (IWF) Interfaces Functions to be Supported via IWF LTE to ETSI TETRA Interworking Interworking Security LTE to ATIS/TIA P25 and Analogue FM Interworking P25 Inter-RF Subsystem Interface LTE to GSM-R Interworking Other...

Watch the recoding of our recent live webinar were we introduced the Certificate & Diploma in Telecoms training programmes and learn how you can become a certified expert in Cellular Radio Engineering, Core Network Engineering, LTE or 5G Engineering. During the session we'll introduce you to the Certificate & Diploma in Telecoms, how the programme is structured, who its designed for, how you'll learn as well as an overview of the specialist learning pathways. You can view the recorded webinar below You can lean more and register for the certified training courses here:

A cellular radio communications system is subject to a number of threats, which are outlined in the diagram below..The motivations for attacks against cellular networks typically fall into one of the following categories: attempts at unauthorised network access to get free services attempts at ‘grabbing’ user identities to make clones attempts at eavesdropping on network traffic to gain unauthorised access to information attempts at tracking users by eavesdropping on signalling traffic The vulnerability of cellular systems to these threats is based mainly on the fact that they employ radio-based user connections.Typically, the most vulnerable parts of the cellular system are...

Learn online, anytime, with our self-study courses. Our self-paced on-demand distance learning courses include an extensive blend of core reading materials and video resources, scenario-based assignments, a dedicated Instructor, live virtual workshops and tools to communicate effectively with fellow students, all in a modern, intuitive and secure cross-device Virtual Learning Environment.Each course is accessible on any computer, tablet or smartphone and allow you to study at a time and location that is convenient to you. Subjects covered include key network technologies including 5G, LTE, eSIM, RAN, GSM-R and Network Security. Enrol and you'll get instant access so you can start learning straight...

Railway networks depend on telecoms.  Without adequate systems in place, trains would not be able to run. GSM-R, adopted in most European countries following International Union of Railways (UIC) guidelines, provides a vital radio communication link between train drivers and signallers, as well as supporting the European Train Control System (ETCS), which details train movements without the need for lineside signalling. Internet Protocol (IP) technologies are used widely in support of signalling activities, critical communication links, surveillance and CCTV monitoring amongst many others, supported by an extensive fibre and copper network. Wi-Fi provides connectivity to the internet for passengers but...

Mission critical communications are currently supported by the Airwave network; however by the end of 2019 it is the intention of the government to replace this network with a more cost-effective and up-to-date broadband communications system. The main issue is that time is running out. The government has chosen a system - LTE (Long Term Evolution); however LTE was never designed for mission critical communications. It was designed to provide mobile communications to smart devices, offering quicker access to data. What this means is that the LTE systems needs to be adapted to make it suitable for mission critical communications,...

The demand for mobile broadband services is putting increased pressure on LTE mobile operators. Simply deploying LTE base stations to provide LTE coverage is only part of the solution. Radio network optimization is widely accepted as a means of improving capacity and performance in a cost-effective manner. The Wray Castle LTE Optimization course enables optimization engineers to identify key parameters which can be tuned to provide peak performance demanded by subscribers. Many optimization engineers will have cut their teeth on GSM and UMTS networks. But LTE is a relatively new technology with its own unique radio characteristics. This training course...

Mobile broadband traffic loads are increasing rapidly which is leading to the need for additional radio spectrum to satisfy the demand. LTE networks are mostly deployed in spectrum from 700 MHz to 2.6 GHz. While LTE mobile broadband in licensed spectrum is highly efficient due to its exclusive occupancy of the spectrum, the amount of available licensed spectrum can be limited and expensive. The amount of unlicensed spectrum (especially in the 5 GHz band) assigned or currently planned to be assigned is comparable to, or even more than, the amount of licensed spectrum available. Many operators have already deployed Wi-Fi...

In December 2015, the UK Government signed contracts with Everything Everywhere (EE) and Motorola Solutions as part of the Emergency Services Mobile Communications Programme (ESMCP). They join Kellogg, Brown and Root in a commitment to deliver the UKs £1bn Emergency Services Network (ESN). The system currently deployed is based upon an ageing circuit switched technology - Terrestrial Trunked Radio Access (TETRA), primarily designed for the dominant mode of communication used by the emergency services – voice. As the potential benefits of access to high speed data services become apparent, TETRA as a technology will be unable to satisfy the demands...