Huawei Technologies Co. Ltd. ( / ˈ h w ɑː ˌ w eɪ / ; Chinese : 华为 ; pinyin : Huáwéi ) is a Chinese multinational networking and telecommunications equipment and services company headquartered in Shenzhen , Guangdong.  It is the largest telecommunications equipment manufacturer in the world, having overtaken Ericsson in 2012. 
In 2014, Huawei recorded a profit of 34.2 billion CNY (5.5 billion USD).  Its products and services have been deployed in more than 170 countries and it currently serves 45 of the world's 50 largest telecoms operators. 
In June 2016, Huawei is reportedly working on and designing its own mobile OS for future usage. 
From July to September 2017, Huawei surpassed Apple and became the second largest smartphone manufacturer in the world (by number of phones shipped, third if BBK Electronics , which operates Oppo , OnePlus and Vivo smartphone brands, is counted in), after Samsung ,    before falling back to third place. 
In September 2017, Huawei created an NB-IoT city-aware network using a "one network, one platform, N applications" construction model utilizing IoT , cloud computing , big data , and other next-generation information and communications technology (ICT) , it also aims to be one of the world's five largest cloud players in the near future.  
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Huawei has released its new 5G-oriented mobile bearer solution for telcos looking to use cloud architectures for network slicing in their evolution from LTE. The X-Haul solution offers both full fronthaul and backhaul coverage, promising flexible access across all scenarios. Flexible networking is implemented through the IP, microwave, and OTN access technologies, enabling unified fronthaul and backhaul bearing whether or not optical cables are used.
The X-Haul solution features a cloud-based architecture, with the management and control plane implementing centralised orchestration through its Network Cloud Engine for various network media such as IP, optical and microwave. The device plane introduces Segment Routing, EVPN and OSP-TE protocols, which Huawei says simplifies bearer device control plane protocols and unifyies the service model to implement the whole automated management life cycle of the bearer network. The vendor claims a ten-fold increase in the efficiency of network-wide operations and management.
Huawei says the use of 50GE technology at the access layer reduces CAPEX by 30 per cent, while enabling smooth future upgrade to 100GE based on FlexE. At the aggregation and core layers, which use an IP plus optical two-layer architecture, the IP layer supports 200GE/400GE interfaces, and the optical layer implements one-hop transmission of wavelengths. Single-wavelength bandwidth can be expanded on demand to 200G/400G.
The 5G era is approaching, and the shape that service modes will take is not yet certain,” said Jeffrey Gao, president of Huawei Router & Carrier Ethernet Product Line. “The X-Haul solution fully supports 4G/5G bearing, so as to effectively support operators new service development and expand the business blueprint. In the future, Huawei will continue to promote joint innovation with operators in the 5G field around the world, and join hands with upstream and downstream industry partners to promote the sustainable development of the 5G industry.