This year's MWC, 5G is still hot, but we heard some different voices.

The words of Deutsche Telekom CTO Bruno Jacobfeuerborn are ruthless:

To reduce the cost of 5G, we need more extensive cooperation, including holding hands with Facebook. As a result, on the road of 4G to 5G, I am afraid that some traditional equipment manufacturers can't survive.

The warning of such indifference stems from the concern and disappointment of the company's investment cost of 5G wireless access network. 5G will use high frequency bands, and below 6GHz frequency band will not be able to meet future demand in the long run, which means building more base stations and purchasing more equipment. Deutsche Telekom expects that 5G wireless access will account for 50% to 70% of total 5G investment, which is an astronomical figure.

The CTO of the German Electric Company admitted that most of the investment occurred in the 5G wireless access network, and the return on investment was too low. In order to control costs, we cannot invest 5G in the same way as in the past.

Buying equipment from traditional equipment vendors is a huge expense. They want to expand the scope of cooperation and rebuild the industrial ecology, which means that some traditional equipment suppliers will disappear, and some new partners like Facebook will join. 5G is bound to be a subversive era.

The CTO went on to mention Facebook's Terragraph innovation project. He thinks Facebook has a good idea. This new partner can help them reduce the cost of 5G deployment.

Terragraph is a millimeter-wave networking technology that operates on 60 GHz unlicensed spectrum and is especially suited for high-speed wireless connectivity in dense urban areas.

Bruno Jacobfeuerborn seems to be not interested in the 5G technology that traditional equipment vendors are actively launching. He believes that the cost challenge is likely to slow down the 5G pace, and 4G still has a long way to go.

We have to live, we have to live on 4G until 2020, and LTE-A and LTE-Advanced Pro, which will drive 4G networks to 2022, 2023 and 2024. 5G will not break out.

Another CTO of an operator also believes that 5G wireless access will be a high investment. However, it is seeming that he is more worried about the industry.

Enrique Blanco, the CTO of the Spanish telecom giant Telefónica, said that this was a big mistake when more than 20 communications companies jointly supported the acceleration of the 5G new air standardization process.

Blanco seems to be complaining that these companies are a bit sloppy. He believes that shutting down the 5G NR standard too early is a step backwards, which hinders 5G technology from synchronizing some new business use cases that will emerge in the next few years.

He believes that these companies still seem to stay in the 4G era of thinking mode to see 5G. If we deploy 5G like 4G, this is a big mistake.

The standard that these 20 companies hope to complete ahead of time is the 5G NR non-independent networking, that is, the introduction of 5G new wireless devices in the LTE core network.

But Blanco believes that 5G is not a new wireless device and a new antenna. The wireless part is not the key to 5G. 5G should pay more attention to the core network and network slicing.

Network slicing based on SDN/NFV technology allows operators to flexibly introduce and deliver emerging services in the same physical network and open the door to verticals. This is the right way to ensure cost and revenue sustainability. posture.

In the 3G and 4G era, operators monotonously adapt to the needs of users and the market by improving the capabilities of the wireless side. However, there will be a fundamental change in the 5G era. 5G needs to use the network slicing technology from the core network to flexibly adjust and adapt to market demand.

However, the 5G we are talking about today, whether it is a new air interface or Massive MIMO, seems to be using the old 4G.

Another person who mentioned that 5G investment is too high is Ajit Pai, the new FCC chairman of the United States, who delivered a highly subversive speech.

Pai said in his speech that building, maintaining and upgrading the network requires huge investments. Due to the densification of 5G networks, a large number of new infrastructures will be needed in the future. In my country, operators have to deploy millions of Small Cells and lay dense fiber, which is a large-scale infrastructure investment.

Therefore, under the pressure of operators facing huge investment, rule makers should think about how to maximize the investment in network construction.

As we move towards 5G, rule-makers should realize that innovation should not be isolated at the boundaries of the underlying network. Internet innovation on the carrier's underlying network is important, but innovation within the underlying network is equally important, especially The field of mobile communications.

In the 5G era, operators should reject “dumb pipes” to make the network infrastructure smarter.

To this end, Pai believes that the US telecommunications rules should return to the "light supervision" track, integrating the basic telecommunications industry into the entire Internet ecosystem, extending from the edge of the network to the network center. Only in this way can we inspire a lot of investment and innovation.

Pai believes that past telecommunications rules and opinions have hindered the development of the telecommunications market. In the past, we considered the telecommunications infrastructure as the same public facilities as water, electricity and gas. We also formulated a network neutrality policy, requiring operators to treat the traffic in their networks equally. This is simply wrong. It is now necessary to remove this outdated view and implement loose regulation of the telecommunications market in order to stimulate network investment.

Remember, operators don't have to build networks or invest risks. If the government has too many restrictions on operators, they are less willing to venture.

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