China Mobile proposes five measures to meet the challenges of 5G for cultural and media services

Recently, at the 5G and Smart Winter Olympics Forum, Sheng Lingzhi, deputy general manager of Beijing Mobile's key customer service center, shared a keynote speech entitled "5G opens the media era to serve the exciting ice and snow event."

Sheng Lingzhi said that the 3G and 4G eras could not meet the needs of cultural and creative media, especially the high-level live broadcast services required for sports events, while 5G's large bandwidth and low latency are very helpful for cultural media and sports research.

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When talking about the challenges 5G poses to B2B media business, Sheng Lingzhi summarized them into four points.

First, 5G is a public communication service. In order to provide business services for B2B cultural and creative media users, we must overcome the difficulties faced by ordinary users.

Second, the scenarios are complex, and it is necessary to ensure the security of multiple types of industry terminals, video streaming, file transfer and other services in a complex environment.

Third, the combined speed of all services must reach 1G, which means that in regional scenarios, multiple features such as large uplink, continuous uplink in mobile state, and ultra-low latency must be achieved.

The fourth is that implementation is difficult, as the project has to be implemented under extremely high security levels throughout the process and in the context of the pandemic.

To solve the above problems, China Mobile has mainly adopted five security measures.

The first is a multi-level private network: China Mobile plans to use three frequencies, 2.6G, 4.9G and 700M, to form a collaborative network that can meet the needs of on-site ToB services and on-site mobile phone users.

The second is dedicated slicing: The biggest feature of 5G is slicing. The end-to-end dedicated slicing solution realizes the "double-excellence" guarantee for to B users, ensuring that to B services seize resources with high priority and meet high-priority scheduling of rates, isolating the impact of TOC users and balancing the resource allocation of public and private network users.

The third is RB resource reservation: the PRBs required for each slice can be scheduled according to the resource percentage. This guarantee reserves RB resources for 2B customer slices.

Fourth, TAC+whitelist: An independent TAC whitelist + slicing solution is used to ensure exclusive access to different to B services, achieve frequency isolation of 2.6 and 4.9, avoid mutual impact between multiple to B services, and ensure high priority use of to B services.

Fifth, end-to-end low latency: Cooperate with hardware companies to jointly open ultra-low latency encoding and decoding algorithms for the first official commercial use; optimize 5G private network configuration specifications to achieve ultra-low latency private networks.