WIRELESS NETWORKS
Engineers designing devices will
be dealing with more complex components, higher power consumption, more heat, and extensive testing requirements to account for so many operating states. While fi tting all the components into a small, power- effi cient package is a challenge in itself, the more diffi cult task is making it all ‘play nicely’ together as the device negotiates handoffs from one type of coverage to another. It’s not good enough to simply maintain a network connection, the device needs to preserve the best possible user experience by transparently selecting the next-best available option when roaming out of LTE coverage. For example, if you’re
video conferencing on the train ride to work and your tablet PC switches from LTE to 2G, the fact that you still technically have a data connection will be little consolation. The whole channel, from
manufacturers through to product and application developers, must work to understand the complexities of LTE so they can successfully develop LTE-capable products for global distribution. It is crucial to remember that an even larger number of radios and frequencies are required, which increases complexity and costs of development. With this in mind from the outset, stakeholders can assess their communications requirements
appropriately and assure their products meet target customers’ needs and budgets. LTE is also incredibly frequency-band
agile. This is a major benefi t for network operators as it makes LTE networks more adaptable to available spectrum resources, but it does present challenges for manufacturers and application developers as the frequency bands used for LTE deployments may differ between different operators in different regions. LTE may also be deployed in different fl avours. For example, most LTE deployments now under way use paired spectrum (FDD mode) with some markets using unpaired spectrum (TDD mode). While 2G and 3G
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www.AFLglobal.com 001 800-235-3423
30 NETCOMMS europe Volume II Issue 3 2012
www.netcommseurope.com
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