On the road of 4G technology of 5G technology, China Mobile, which has the world's most mobile users, is very eye-catching.
At present, based on the TD-LTE network, China Mobile has actively deployed CA (Carrier Aggregation), 3D MIMO, Distributed MIMO (D-MIMO), NB-IoT and other technologies to lead the industry development trend.
Operators, including China Mobile, can achieve 4 values ​​through 5G technology:
One is to effectively improve the existing network user experience.
The second is to realize the smooth evolution of services to 5G.
The third is to improve the network operation capabilities, and the fourth is to protect the investment in LTE networks.
Technological changes have shaped the digital transformation of the business. Through 5G technology, operators can deploy 5G evolution of future services, such as high-definition video experience anytime and anywhere; continue to promote 4G HD voice capabilities, enhance user perception, release spectrum resources, and help strategic layout of 5G spectrum; explore opportunities for IoT, Explore the business model for the 5G Internet of Everything.
Among the currently known 5G technologies, Massive MIMO/3D MIMO, 4&TImes, 4 MIMO and distributed MIMO can be applied to current 4G networks to improve existing network capabilities. It is understood that around the 5G technology 4G strategy, Huawei and other industrial chain companies, in the 5G field of technology leadership, and China Mobile and other important operators to explore the evolution of the road, from the standard, industry, research and development, etc. Ensure forward-looking solution planning, leadership in solution delivery, and superior performance in key technologies.
3D MIMO has been deployed commercially in China Mobile
Massive MIMO/3D MIMO uses a similar phased array radar technology to achieve a significant increase in spectral efficiency through more accurate beamforming capabilities and multi-stream multiplexing multi-stream capability. It has a good effect on high-capacity, high-level coverage, high-interference, and uplink capability enhancement in the network. It is a key technology in the global 4G technology exploration process.
At present, China Mobile has implemented commercial deployment of 3D MIMO multi-scenarios in Hangzhou, Shenzhen, Hefei, Luoyang and Shijiazhuang, helping ordinary users to achieve 2 to 3 times improvement in perception. More importantly, with the powerful beamforming capabilities of 3D MIMO, operators can greatly enhance the user's experience at the edge of the network, enabling operators to realize high-definition video experience anywhere, anytime.
In terms of 3D MIMO, Huawei has taken the lead in the development of 3D MIMO technology prototypes since September 2014. It has actively promoted industry traction and proposed a distributed architecture of BBU+RRU to support future 5G evolution. At present, this technical thinking has been recognized by the industry and is the main solution for the current global deployment of 3D MIMO.
Huawei also promotes the broadband capability of 3D MIMO to ensure maximum return on investment and overall performance. It will promote the maturity of the chip and supporting industries and help operators meet the needs of commercial deployment.
3D MIMO is not the end. Under the above 3D MIMO multi-antenna network, operators can further enhance user perception and network capacity based on existing LTE networks by enabling technologies such as 4&TImes; 4 MIMO, which is an important part of "experience 5G". . Through 4&TImes; 4 MIMO, user perception can be doubled and network capacity can be increased by more than 30%. In this regard, there has been consensus in the industry that mainstream chips such as Qualcomm and HiSilicon have been supported since 2016. Starting in 2017, mainstream terminals such as Huawei and Samsung will also support it.
Distributed MIMO has commercial capabilities this year
It is worth mentioning that distributed MIMO is also a key technology in the network construction of UTC (User Centric Network). It distributes the existing air interface wireless channels through the baseband to achieve multi-channel capability integration in the physical layer. The interference between the original base stations is changed to a useful signal in the base station. For the current increasingly mobile 4G network, on the one hand, D-MIMO can effectively improve the network anti-interference ability. On the other hand, distributed MIMO can further obtain user experience and network capacity gain by means of multi-channel capability.
In this regard, Huawei and other equipment manufacturers are also actively practicing.
In 2015, Huawei took the lead in completing the technical capability demonstration and was recognized by customers such as China Mobile.
In 2016, Huawei and China Mobile conducted a phased outfield pilot in Shanghai and Hangzhou to significantly enhance the edge user experience.
In 2017, Huawei will conduct a second-stage field trial of distributed MIMO for mobile typical scenarios. Distributed MIMO will be commercially available at that time.
Compared with other equipment vendors, Huawei is leading the way in promoting 4G technology in 5G technology, whether it is 3D MIMO or distributed MIMO. Huawei first introduced the 4.5G concept in the industry and was recognized by the industry chain. The exploration of 5G key technologies faces many high requirements in algorithms, chips, materials, engineering, etc., and needs to be jointly promoted by the entire industry chain. Facing the future, Huawei said that it will continue to promote the standardization and industrialization of some technologies in 5G technology.
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