Requirements and Challenges of Smart City
With any Smart City solution, information and communications technologies (ICT) are used to collect, analyze, and integrate key information about the core systems for city operations. This solution enables an intelligent response to various urban demands in the aspects of people's livelihood, environmental protection, public safety, city services, and manufacturing and commerce activities. Cutting-edge ICT technologies facilitate smart city management and operation, which creates better lives for citizens and promotes sustainable development for the city.
Smart city information collection depends on ubiquitous sensors and data collecting equipment. Wired connection is difficult to deploy and the cost is high. GPRS is an obsolete technology that has high power consumption and limited coverage. ZigBee, Bluetooth, and other technologies are not suitable for wide-area coverage. A wireless network that can adapt to a variety of scenarios is required for a smart city.
Smart City Wireless IoT Solution
Huawei's Smart City Wireless IoT solution provides a network integrating broadband and narrowband to resolve common issues during urban development, such as lack of security, high energy consumption, traffic congestion, and pollution.
The Smart City Wireless IoT solution provides three access methods, which can be used independently or combined flexibly in accordance with services and spectrum:
eLTE-IoT: The unlicensed sub-GHz Industrial Scientific & Medical (ISM) bands are used for information collection for mass industrial devices. Advanced coverage enhancement, anti-interference, and energy conservation technologies are utilized to build a private narrowband IoT network.
eLTE-U: A private broadband IoT network is deployed on the unlicensed bands of 5 GHz when enterprise customers cannot acquire private licensed spectrum. 4.5G LTE technologies are used to provide improved coverage (more than two or three-fold), better mobility,
and more reliable and stable wireless connection than Wi-Fi.
eLTE-Licensed: A private broadband IoT network is deployed on the licensed bands. When enterprise customers have private licensed spectrum, eLTE-Licensed provides high-performance broadband data access and allows voice scheduling services. This meets the
requirements of industrial IoT and production schedule.
