Huawei has engaged in another 5G field trial with NTT DOCOMO and TOBU Railway in Tokyo, which initiated by Ministry of Internal Affairs and Communications, Japan (MIC).
The system trial was conducted as part of NTT DOCOMO’s contract of MIC’s 5G Field Trial with an aim to research technical conditions to use the 28 GHz band and other candidate spectrums for 5G in dense urban area by investigating into radio propagation characteristics as well as evaluating 5G system performance with focus on enhanced Mobile Broad Band (eMBB) applications.
In December 2017, Huawei had succeeded in 5G long-distance and high-speed data transmission between TOKYO and a shopping facility at TOBU Railway’s Asakusa Station on the 28GHz band together with NTT DOCOMO and TOBU RAILWAY. Huawei also evaluated 5G system performance when creating an immersive video communication with clear voice calls and smooth video footage by using Microsoft HoloLens connected to the end to end 5G network used for the long-distance and high-speed data transmission.
Huawei, as a partner of NTT DOCOMO’s 5G experimental trial and contract of MIC’s 5G Field Trial, will continue to evaluate 5G data transmission and system performance required for video communication services toward Tokyo 2020 Olympic and Paralympic Games and beyond.
It seems the race to demonstrate raw bit speed under the early 5G new radio (NR) is starting to heat up. Huawei presented a scenario that claimed better than 32 Gbps download speed at the recent PT/Expo in China. But what does that exactly mean?
Raw speed has its place in certain areas like motor sports. They who go the fastest get the trophy, simple as that! However, port that to the electronics segment and the lines get fuzzy. For example, raw CPU speed isn’t necessarily the determining factor in performance when it comes to computers.
In fact, raw CPU cycles are not even up there in bragging rights anymore. With computers, throughput is usually measured in task performance. Running a CPU benchmark and getting a number is meaningless if the software has sloppy code and the rest of the hardware, peripherals, memory, core I/O mapping, the base hardware platform, etc., are not top shelf. The same parallel can be drawn in wireless systems.
So to say Huawei is now the leader, because they managed to get a 32 Gbps peak download speed, doesn’t really tell the story. It is just good for publicity to keep the 5G train moving.
As with most of this type of data from China, the details are few. All Huawei says is that “Using 200 MHz bandwidth on the C-band, the downlink cell peak rate exceeded 32Gbps. Huawei assumed the initiative to integrate all key 5G New Radio (NR) technologies. These include flash orthogonal frequency-division multiplexing (f-OFDM), new frame structure, new codes (such as Polar Code), new parameter sets, massive multiple-in, multiple-out (MIMO), and sparse code multiple access (SCMA).” OK, but how did they do all of this? I could not find any technical details about any of this.
Since this is set up under the “non-standard” spec., it would be nice to see the parameters of the system and what part of the non-standard stuff was actually used (stuff is occasionally a technical term, btw).
In cases so far, such test results were obtained under optimal conditions with tweaked equipment pushing the parameter limits – something not likely to be implemented in GA products. They also claimed 300 ns latency (one-way), but was that consistently or sporadically?
It is no secret that the Chinese like to push the limits of the edges and spin it to make it sound like it is the greatest advance in the history of electronics. I am not judging, just saying what I have experienced. Raw numbers like this mean little to me.
There is little doubt that the faster the download speed, or the wider the bandwidth, the more data can be packed into the pipe. Therefore, having a fat pipe is, without a doubt, the goal. But with that has to come a lot more than just speed. All the speed in the world isn’t going to matter if the traffic and bandwidth is not optimized.
Huawei confirmed a reduction in headcount but said the reduction was only 20 people, or less than 2 percent of its full-time employees in the United States.
“These normal resourcing changes reflect the need to maintain a sustainable and profitable infrastructure business in the United States for the long term, while we continue to recruit in line with the needs of our overall U.S. business,” the Huawei spokesman said. “Our commitment to customers is the highest priority, and we remains committed to serving and supporting all existing infrastructure and other customers. Our R&D, supply chain management and consumer business group operations in the US are unaffected by these changes.”
It is just shy of five years since a congressional investigative report was released on the security issues posed by Huawei and fellow Chinese company ZTE.
The report concluded that insufficient evidence was provided by either of the two companies to allay concerns of close ties with the Chinese government, creating a security risk for the United States. As a result, the report recommended that the U.S. government should not include Huawei or ZTE equipment in its systems. Private entities, including network providers, were “strongly encouraged” to not do business with them.
Since that report was released, carriers operating in the United States have been unwilling to risk using Huawei’s network equipment, out of fear of jeopardizing their U.S. government business ties, according to Iain Gillott, principal of iGR Research. After the report, Huawei concentrated on third tier wireless operators, wireless internet service providers and enterprises.
“The business that Huawei has here tends to be with smaller, rural operators, such as Union Wireless or non-critical parts of the network,” Gillott told eDigest. “A lot of enterprises have the same issue as the carriers. They do business with the U.S. government and their Boards of Directors are concerned about hacking and industrial espionage.”
Also in response to U.S. government concerns, Huawei asks each of its employees to sign a paper promising not to compromise the security of any customer. If trust was the main issue with Huawei, then the OEM’s image was certainly not helped by the verdict earlier this year where a jury awarded $4.8 million to T-Mobile in its lawsuit against Huawei Devices for allegedly stealing its smart phone testing technology.
“It gets down to whom the Board of Directors trusts,” Gillott said. “It is an interesting dynamic. The closest we can come to a homegrown OEM is Nokia or Ericsson, and they are Finish and Swedish.”
J. Sharpe Smith is senior editor of the AGL eDigest. He joined AGL in 2007 as contributing editor to the magazine and as editor of eDigest email newsletter. He has 27 years of experience writing about industrial communications, paging, cellular, small cells, DAS and towers. Previously, he worked for the Enterprise Wireless Alliance as editor of the Enterprise Wireless Magazine. Before that, he edited the Wireless Journal for CTIA and he began his wireless journalism career with Phillips Publishing, now Access Intelligence.
November 28, 2016 — With network slicing as core of future gigabit networks, technologies are being developed to help operators build full-service access networks in the cloud.
China Telecom Shanghai and Huawei have successfully applied an access network slicing solution, which involves the slicing of the access network to connect home, enterprise and campus. The solution will enable operators to use a single network to deliver all types of services, which improves overall network utilization, new service provisioning rates, and network security and reliability.
“With this function, multiple services can be independently carried, operated, maintained, and managed on one network, helping operators improve device utilization, lower the O&M cost, and achieve business successes,” Jeff Wang, president of Huawei Access Network Product Line
China Telecom Shanghai user base growth has resulted in insufficient equipment room space and high power consumption. To solve these problems, Huawei has developed an access network slicing solution based on the OLT MA5800, the new generation large-capacity distributed smart platform.
Zhang Jun, Vice Chief Engineer of China Telecom Shanghai, said, “Network slicing enables service isolation and optimizes resource utilization. This is why we use MA5800s on gigabit networks. Network slicing is our first step toward cloud. It is now being including in the related technical standards of China Telecom. In the future, we will cooperate with Huawei to further optimize network slicing.”
November 15, 2016 — China Mobile and Huawei have rolled out several major network enhancements this year, strengthening network coverage and quality. In addition, the companies deployed a “2.3GHz TDD Massive MIMO solution” test and a “TDD + FDD 1Gbps Download Speed” test.
“Today’s real-time network tests demonstrated the ability of Massive MIMO technology and enhanced the efficiency and effectiveness of the TDD spectrum. The TDD+FDD carrier aggregation technology also brought higher surfing speed for fast growing numbers of mobile internet users,” Deng Tai Hua, president of the Huawei Wireless Network Product Line. Huawei is a strategic partner of China Moble, which owns a TD-LTE / LTE FDD converged network.
China Mobile also rolled out three major network enhancement projects this year, including growing the number of base stations, upgrading of the radio network system for quality enhancement at MTR stations, as well as boosting download speeds by adopting the latest advanced technologies, according to Sean Lee, CEO, China Mobile.
China Mobile worked with the MTR Corporation to deploy the LTE 2100MHz system in MTR stations, and the radio network system for MTR areas will be fully upgraded to provide LTE 2600MHz network coverage.
The number of base stations has been increased by 12 percent compared to the same period in 2015 and replaced core network equipment to build an advanced NFV core network. The company expects to upgrade 60 percent of its base stations by end of 2016 and 90 percent by second quarter of 2017. The overall infrastructure enhancement will lead to the deployment of Massive MIMO, 4×4 MIMO, downlink 256QAM and uplink 64QAM.