NTT DoCoMo has announced attaining 5G speeds of 27Gbps during outdoor trials with Mitsubishi Electric in Kamakura, in Japan’s Kanagawa Prefecture.
According to the Japanese carrier, this was the world’s first 5G transmission to exceed a peak speed of 20Gbps using one terminal, with a communication distance of 10 metres attaining the 27Gbps speed, and a speed of 25Gbps over 100 metres.
NTT DoCoMo used the 28GHz millimetre-wave (mmWave) frequency band, massive-element antenna systems, and 16-beam spatial multiplexing technology with 500MHz bandwidth, which they said could be used to transmit high-speed connectivity to vehicles with multiple passengers such as trains and buses.
“Base-station antennas installed on the wall of a building directed beams to mobile-terminal antennas installed on the rooftop of a vehicle,” the companies said, explaining that massive-element antenna systems technology allow for several data streams to be transmitted in parallel.
“The mobile terminal moved along two different streets. The distance of one mobile terminal was 10m from the base station and the distance for the other was 100m.”
According to the two companies, they attained the high speeds by developing more advanced beam-forming technology.
“Mitsubishi Electric and DoCoMo developed beam-forming technology in an analog domain and inter-beam interference reduction technology to suitably separate overlapping beams with digital signal processing at the base station. The result is 16-beam spatial multiplexing, which has been unachievable with 4G,” they explained.
“The developed beam-forming technology enables beams to track a mobile terminal by switching the preset beam. The inter-beam interference reduction technology estimates the channel at the base station and controls the transmitting signal to adaptively reduce inter-beam interference as channel conditions over time. Together, the two technologies enable 16-beam spatial multiplexing in outdoor mobile environments.”
They will next conduct indoor trials before the end of March, with the R&D project being the result of a commission by Japan’s Ministry of Internal Affairs and Communications to look into Massive Multiple-Input Multiple-Output (MIMO) technology for 5G.
NTT DoCoMo has actively been working to push 5G capabilities, completing trials of 5G integrated access backhaul (IAB) technology with Chinese networking giant Huawei in May, which it said increases the wireless coverage of mmWave spectrum.
The field trial used the 39GHz band and was undertaken in Yokohama CBD Minato Mirai 21, testing wireless backhaul between an IAB donor 5G base station and an IAB or 5G relay node, which was able to connect wirelessly with mobile user equipment.
IAB technology reduces interference and allows for simultaneous data transmissions over the same frequency, the telco said.
Huawei and NTT DoCoMo had similarly tested 5G in Yokohama’s Minato Mirai 21 District back in 2016, attaining 11.29Gbps throughput speeds and latency of less than 0.5ms during a field trial.
That trial had used the 4.5GHz spectrum band, along with a macro cell with one base station and 23 user equipment devices.
Huawei and NTT DoCoMo signed a memorandum of understanding in December 2014, which also saw the companies conduct an outdoor field trial of Massive MIMO in Chengdu, China.
The Japanese telco giant earlier this year also announced reaching a 5G equipment supply deal with NEC Corporation, with NTT DoCoMo planning to launch its new mobile network in 2020.
Under the deal, NEC will provide control units for 5G base stations as well as using software upgrades to ensure NTT DoCoMo’s existing base stations and telco equipment are compatible with 5G.
NEC had in February used Mobile World Congress 2018 to announce that it would be undertaking verification experiments alongside NTT DoCoMo on 5G wireless technologies at the Yokosuka Research Park and NEC’s Tamagawa Plant.
Following the standardisation of 5G NR specs in December, NTT DoCoMo, NEC Corporation, and Huawei all announced the beginning of the full-scale development of 5G NR including large-scale trials and commercial deployment, along with Ericsson, Intel, Nokia, Samsung, AT&T, BT, China Mobile, China Telecom, China Unicom, Deutsche Telekom, Fujitsu, KT Corporation, LG Electronics, LG Uplus, MediaTek, Orange, Qualcomm, SK Telecom, Sony Mobile Communications, Sprint, TIM, Telefonica, Telia Company, T-Mobile USA, Verizon, Vodafone, and ZTE.
NTT DoCoMo has also been involved in testing 5G with Ericsson, Nokia, and Intel.
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The Easiest Way To Back Up Your Android Phone’s Data
Google’s service for saving and restoring photos and videos is called “Backup & Sync.” It works across all platforms. But the tool is pre-integrated into the Google Photos app for Android.
- To create a backup for your photo and video gallery, download and install Google Photos from the Play Store (if you haven’t already).
- You’ll be asked to sign in with a Google Account of your choice.
- After signing in, tap your profile picture in the corner to pull up the preferences.
- Next, navigate to Photos Settings > Backup & Sync and toggle the switch.
- Backup & Sync will automatically start saving your photos and videos to the cloud. Once the process is completed successfully, you will see a green accent and a checkmark around your profile picture.
Unless you’re on a Pixel phone, the storage isn’t unlimited. From June 1, 2021, Google only offers 15GB of free storage. But you can always buy extra storage or adjust the upload size to save space. To change the Upload size, scroll down the Backup & Sync menu and select Upload size. And pick from Storage saver or Original quality modes (via Google).
Also, you can specify individual folders if you don’t need to back up your entire gallery. Go to Backup and Sync > backup device folders and toggle your chosen folders from the list.
Why Your Android Phone Goes Straight To Voicemail And How To Fix It
If you need periods blocked off in your day to focus or relax, the Do Not Disturb Mode is a handy feature to have. You can either block all phone calls or only accept calls or messages from the contacts you want to hear from. If this setting is enabled, it also blocks app notifications, text messages, and alarms. But what if you forget to turn it off? Or switch it on by accident? Depending on who calls, you probably won’t hear your phone ring, and their calls will most likely go to voicemail.
Here’s how you can turn it off in three simple steps.
Swipe down from the top of your screen to pull down your phone’s notification menu.
Check if the Do Not Disturb button is enabled at the bottom right.
If it’s on (the button will be lit). Tap once to turn it off.
Another way to turn off the Do Not Disturb function is to go through the settings menu on your phone.
Go to the Settings app on your phone
Hit Sound & vibration > Do not disturb > Turn on/off now.
If you own a phone that is Android 8.1 and below, press Sound > Do not disturb. Toggle the switch on/off
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According to notorious tipster @Ice universe, Samsung mobile division head TM Roh was quoted as saying that the Galaxy Note will appear in the form of the Galaxy S Ultra every year. The direct implication here is that there will no longer be a Galaxy Note model moving forward. It also suggests that the Galaxy S Ultra models will retain the same form and features as the Galaxy Note, just like the Galaxy S22 Ultra released in 2022.
In terms of features, that basically means that the Galaxy S Ultra model will continue carrying an S-Pen inside its body. That design change started with the Galaxy S22 Ultra this year, in contrast to the previous Galaxy S21 Ultra generation, which had no room for the stylus inside. That same ultra-large phone distinguished itself from the Galaxy S22 and Galaxy S22+ with its boxier design, similar to that of the latest Galaxy Note models. Whether that design will remain going forward is still unknown, but the exact appearance of the Galaxy Note was never its defining feature anyway.
This news, if confirmed to be official, will probably send mixed feelings to Galaxy Note fans. On the one hand, they will be relieved that the S Pen isn’t going anywhere, at least not yet. On the other hand, the brand beloved by professionals and creatives is finally being retired after almost a decade of service. The move will at least help consolidate Samsung’s Galaxy S brand and even make the S-Pen a staple of its flagship — and hopefully, it will at least stay that way for more years to come.
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