On May 9th, at the "5G Bearer Technology Development Seminar", Li Wei, deputy director of the China Mobile Research Institute Network and IT Technology Research Institute, revealed that China Mobile will launch the SPN live network pilot in Q3 this year to support 5G pilot work in 5 cities.
According to Li Wei, the SPN equipment of the manufacturers has been in the process for testing. If the test is successful, China Mobile hopes to conduct a larger pilot in 18 cities by the end of the year.
5G transmission needs to meet large bandwidth, low latency, high synchronization, etc., which leads to the need for devices to be replaced, and the chip needs to be redesigned.
Li Wei said that the two-generation wireless transmission band, China Mobile PTN is carried from 3G to 4G, but the bandwidth is 10 times growth, but the 5G bandwidth directly increases 1000 times, the entire bandwidth and hardware equipment can not Supported.
In terms of delay and synchronization, delay has always been the focus of operators' competition, but the final ceiling of the delay is mainly at the transmission level, and the delay can only be adopted by new technologies.
From the perspective of demand, 5G bearer needs to be changed. At present, new transmission technologies such as FlexE, FlexO, and SDN are constantly appearing in the industry. Previously, these technologies were upgraded through the old network, and only achieved the effect on some interfaces, rather than an end-to-end networking effect. China Mobile believes that there should be a new technology to support the arrival of 5G.
Four factors prompted China Mobile to propose SPNFor China Mobile, there are four main factors to consider when considering the 5G bearer architecture design. First, the 5G RAN architecture, 3GPP 5G RAN function splitting defines the CU and DU two-level architecture, resulting in a variety of 5G stage stations, no longer mainly backhaul, but pre-transmission, intermediate transmission, and backhaul networks will be more important, more Business Support.
The second is the 5G CORE architecture. In the 5G network, the UPF and the MEC are flexibly deployed according to specific service requirements. The traffic between the MECs needs to be forwarded nearby. The L3 function of the metropolitan area network needs to sink to the aggregation layer or even the access layer. Large, it has a great impact on networking.
Third, 5G network fragmentation and vertical industry low-latency services need to reduce the end-to-end delay. Each node needs to support very low forwarding delay. It needs to support both hard isolation and soft isolation to achieve soft and hard slices.
Fourth, 5G is based on the SDN architecture. It is necessary to consider introducing controllers and Orchestrators. It is necessary to implement decoupling of layers through standard interfaces and information models. At the same time, it is necessary to consider the performance problems when the management system manages large Layer 3 networks.
To this end, China Mobile has proposed SPN technology standards, which can meet the needs of 10 times greater broadband enhancement, 10 times lower latency, and 10 times lower single-bit cost.
Promote SPN to become the global 5G bearer standardIn the field of communications, a standard can only be a global standard, and it can be obtained from the support of many companies in the industry chain. To this end, while China Mobile is constantly pushing the SPN to become a de facto standard, it is also striving to promote SPN as the standard for global 5G bearers.
At the recent ITU conference, China Mobile led the 5G bearer standard project and established two new bearer technology project teams, SPN and M-OTN.
This not only makes SPN internationally recognized, but the greater significance lies in this 5G-hosted conference. Basically, the manuscripts include technologies proposed by China, and the technologies are all original in China, which makes China a leader in the development of global 5G bearers. By.
With Cummins Engine Generator,Cummins Diesel Generator,Cummins Diesel Generator Set,Cummins Diesel Generator Get
Shanghai Kosta Electric Co., Ltd. , https://www.generatorkosta.com