Category: Mobile Computing

Select Options to set up the Bedtime Mode behaviour

Apple’s iOS operating system since version 12 have support for “Bedtime” mode which allows you to have a good sleep. This is achieved through optimising the display to reduce blue light in a sleep-friendly manner along with default automatic enablement of “Do Not Disturb” mode where the iPhone won’t ring through during the hours the Bedtime mode is in operation. This will be heralded by your iPhone ringing a phrase of Brahms’ Lullaby with a music-box sound when that mode is effective.

But some of us may don’t want to miss important calls that come through at night due to work or personal reasons. An example of this could be a person who is a registered keyholder for a premises and needs to know of alarm incidents affecting that premises. Or someone you expect home may be arriving late and wants to let you know they are on their way or changed plans. In a simple case, you may not want to miss that important call from someone who is on the other side of the world.

The default implementation for Bedtime mode has your iPhone in “Do Not Disturb” mode where your iPhone won’t ring or sound a notification tone for text messages while that mode is in effect. But you may want most of the sleep-friendly benefits of this mode while being able to be woken by those important calls.

Clear the Do Not Disturb option to allow calls and texts to come through during Bedtime Mode

To enable this, you need to go to the Clock app and select the Bedtime screen. Select “Options” and turn off the “Do Not Disturb” mode on that screen to allow calls to come through. The display will still be dimmed through this time but the iPhone will ring or sound a notification tone.

You may also have to check for scheduled “Do Not Disturb” times in case you used this feature to set up a “do-not-disturb” period surrounding your normal bedtime. This is a feature that an iOS user may have implemented before updating to iOS 12. You can check this feature in the “Do Not Disturb” option in the Settings app.

If you do use the “Do Not Disturb” option, you can allow certain caller groups to break through and cause your phone to ring irrespective of when this option is in effect. One of these is “Favourites” which allows you to mark contacts as a “favourite”. Or you can use the Groups option to allow calls from contact groups that you have pre-defined. This is important if you mark out your contacts in to contact groups like “work” or “family” and is a complex procedure that requires you to use your Apple iCloud.com account on a Web browser.

The use of a predefined caller list to override “Do Not Disturb” may not work well with callers who call you using VoIP or from behind a business phone system. This is because you may find that the caller ID for their call may be different from their phone number due to them, for example, calling from the nearest extension rather than their own extension.

iOS and Android could natively follow the Symbian (original Nokia feature-phone operating system) approach where you have different situation-specific alerting presets that affect your phone’s audio / vibration / indicator-light behaviour. This can also allow the use of one or more priority call lists so that callers you select for a particular situation can ring through. Such presets can be linked to operation modes like the “Bedtime” mode or alarm clock so they can be effective during these modes.

As well, Apple could simplify the process of creating and managing caller groups on the iOS contacts list while you are using your iPhone’s user interface. This is important for processes like adding new contacts to your list or revising your contacts, and can make the process more intuitive.

Articles

1TB microSD cards will boost the storage of your device, if you can afford it | TechRadar

From the horse’s mouth

SD Association

microSD Express – The Fastest Memory Card For Mobile Devices (PDF – Press Release)

Video – Click or tap to play

My Comments

The microSD card which is used as a removeable storage option in most “open-frame” smartphones and tablets and increasingly being used in laptops has gained two significant improvements at this year’s Mobile World Congress in Barcelona.

The first of these improvements is the launching of microSD cards that can store 1 terabyte of data. Micron pitched the first of these devices while SanDisk, owned by Western Digital and also a strong player with the SD Card format, offered their 1Tb microSD card which is the fastest microSDXC card at this capacity.

The new SD Express card specification, part of the SD 7.1 Specification, provides a “best-case high-throughput” connection based on the same interface technology used in a regular computer for fixed storage or expansion cards. The microSD Express variant which is the second improvement launched at this same show takes the SD Express card specification to the microSD card size.

The SD Express specification, now applying to the microSD card size, achieves a level of backward compatibility for host devices implementing orthodox SD-card interfaces. This is achieved through a set of electrical contacts on the card for PCI Express and NVMe interfaces along with the legacy SD Card contacts, with the interfacing to the storage silicon taking place in the card.

As well, there isn’t the need to create a specific host-interface chipset for SD card use if the application is to expressly use this technology and it still has the easy upgradeability associated with the SD card. But most SD Express applications will also have the SD card interface chipset to support the SD cards that are in circulation.

This will lead to the idea of fast high-capacity compact removeable solid-state storage for a wide range of computing applications especially where size matters. This doesn’t matter whether the finished product has a smaller volume or to have a higher effective circuit density leading to more functionality within the same physical “box”.

One use case that was pitched is the idea of laptops or tablets, especially ultraportable designs, implementing this technology as a primary storage. Here, the microSD Express cards don’t take up the same space as the traditional SATA or M2 solid-state storage devices. There is also the ability for users to easily upsize their computers’ storage capacity to suit their current needs, especially if they bought the cheapest model with the lowest amount of storage.

Photography and videography will be another key use case especially when the images or footage being taken are of a 4K UHDTV or higher resolution and/or have high dynamic range. It will also be of benefit for highly-compact camera applications like “GoPro-style” action cams or drone-mount cameras. It will also benefit advanced photography and videography applications like 360-degree videos.

Another strong use case that is being pitched is virtual-reality and augmented-reality technology where there will be the dependence on computing power within a headset are a small lightweight pack attached to the headset. Here, the idea would be to have the headset and any accessories able to be comfortably worn by the end-user while they engage in virtual-reality.

Some of the press coverage talked about use of a 1Tb SD card in a Nintendo Switch handheld games console and described it as being fanciful for that particular console. But this technology could have appeal for newer-generation handheld games consoles especially where these consoles are used for epic-grade games.

Another interesting use case would be automotive applications, whether on an OEM basis supplied by the vehicle builder or an aftermarket basis installed by the vehicle owner. This could range from a large quantity of high-quality audio content available to use, large mapping areas or support for many apps and their data.

The microSD card improvements will be at the “early-adopter” stage where they will be very expensive and have limited appeal. As well, there may need to be a few bugs ironed out regarding their design or implementation while other SD-card manufacturers come on board and offer more of these cards.

At the moment, there aren’t the devices or SD card adaptors that take advantage of SD Express technology but this will have to happen as new silicon and finished devices come on to the scene. USB adaptors that support SD Express would need to have the same kind of circuitry as a portable hard drive along with USB 3.1 or USB Type-C technology to support “best case” operation with existing host devices.

This technology could become a game-changer for removeable or semi-removeable storage media applications across a range of portable computing devices.

Article

A screen protector or privacy screen can be a valuable cost-effective accessory for that laptop

Do laptop screen protectors affect touchscreen sensitivity? | Windows Central

My Comment

An accessory that you could get for your own laptop computer or give to someone who owns one is a screen protector or privacy screen. These accessories are considered very affordable and you would be safe to give one as a gift for any occasion. It is not hard to come by these accessories, typically found in accessory departments of computer, consumer-electronics, office-supply or similar stores or available online through the likes of Amazon.

The screen protectors, typically made of plastic or tempered glass, protect the screen from scratches or dust. The plastic option is an economy option but it itself can be scratched and is not always likely to cover the whole of your screen as well as itself becoming a “dust magnet”. The glass option costs extra but is more damage resistant and will cover your screen fully. That is more important especially for tablets and 2-in-1s due to you interacting with the screen more frequently.

Privacy screens are a screen protector that uses a fresnel-lens approach thanks to polarisation to limit the viewing angle to directly in front of the screen. This is to prevent others who are sitting beside you from viewing what’s on your screen, but if a person is directly behind you, they can see what you are doing. It is good if you are using your computer to work on confidential material in a high-traffic area regularly like making use of that “second office” cafe or bar, or using it to do your work on public transport or while flying.

This is more so with these 2-in-1 convertible laptops

You may expect to have reduced sensitivity from touchscreens or active-pen setups due to the extra material but this may be a slight effect. In some cases, a screen protector that has a textured surface may provide a better inking surface than using a glossy screen alone or a smooth-surfaced protector. This is more so if it has a paper-style texture.

When choosing a screen protector or privacy screen, pay attention to ease of installation and removal. This is important if you find that it doesn’t fit your computer properly or suit your needs or the screen becomes too dull as you use it. In some cases, you may find that particular screen protectors may fit a particular model of laptop rather than working for a particular generic screen size.

Something else you may may have to pay attention to is whether the screen protector does impact your computer’s screen brightness for comfortable use over its lifespan. This is more so if you have to increase the screen brightness which can have an impact on battery runtime. Let’s not forget how the automatic brightness functionality on some screens may be affected by the use of the screen protector and you may have to raise the brightness slightly.

Considering these points can allow you to choose the best value screen protector or privacy screen for your laptop or tablet so you can gain long-term use out of these accessories.

The TV era 

From the late 1960s through to the 2000s, the television was seen by some people as a time-waster. This was aggravated through increasingly-affordable sets, the existence of 24-hour programming, a gradually-increasing number of TV channels competing for viewership, remote controls and private broadcasters including many-channel pay-TV services.

It led to an increasing number of users concerned about various idle and unhealthy TV-viewing practices. Situations that were often called out included people dwelling on poor-quality content offered on commercial free-to-air or pay-TV channels such as daytime TV;  people loafing on the couch with the remote control in their hand as they idly change channels for something to watch, known as “flicking” or channel-surfing; along with parents using the TV as an “electronic babysitter” for their children.

Even technologies like videocassette recorders or video games consoles didn’t improve things as far as the critics were concerned. One talking point raised during the early 1990s was the ubiquity and accessibility of violent video content through local video stores with this leading to imitative behaviour.

We even ended up with the TV set being referred to as an “idiot box”, “boob tube” or similar names; or people who spend a lot of time watching TV idly having “square eyes” or being “couch potatoes”. Some people even stood for “TV-free” spaces and times to encourage meaningful activity such as for example not having a set installed at a weekender home.

There was even some wellness campaigns that were tackling unhealthy TV viewing. One of these was the “Life Be In It” campaign ran by the Australian governments during the late 1970s.  This campaign was centred around a series of animated TV “public-service-announcement” commercials (YouTube – example about walking) featuring a character called “Norm”, which showed different activities one could be engaging in rather than loafing in the armchair watching TV non-stop.

The rise of the personal computer, Internet and smartphones

The 1980s saw the rise of increasingly-affordable personal-computing power on the home or business desktop with these computers gaining increasing abilities over the years. With this was the rise of games written for these computers including some “time-waster” or “guilty-pleasure” games like Solitaire or the Leisure Suit Larry games.

During the late 1990s and the 2000s, the Internet came on board and gradually offered resources to the personal computer that can compete with the TV. This was brought about with many interesting Websites coming online with some of these sites running participant forums of some form. It also had us own our own email address as a private electronic communications channel.

Also, by the mod 1990s, most Western countries had implemented deregulated competitive telecommunications markets and one of these benefits was mobile telephony service that was affordable for most people. It also led to us being able to maintain their own mobile telephone service and number, which also lead to each one of us effectively having our own private connection. This is rather than us sharing a common connection like a landline telephone number ringing a telephone installed in a common area like a kitchen or living room.

The smartphone and tablet era

The smartphone is now being seen as the “new TV”

But since the late 2000s the Internet started to head down towards taking the place of TV as a centre of idle activity. This was driven through the existence of YouTube, instant messaging and social media, along with increasingly-portable computing devices especially highly-pocketable smartphones and tablets or small laptops able to be stuffed in to most right-sized hand luggage, alongside high-speed Internet service available through highly-affordable mobile-broadband services or ubiquitous Wi-Fi networks.

Issues that were underscored included people looking at their phones all day and all night to check their Facehook activity, watching YouTube clips or playing games and not talking with each other; smartphone anxiety where you have to have your phone with you at all times including bringing it to the dinner table, and the vanity associated with the social-media selfie culture. Sometimes browsing the Social Web including YouTube ended up being seen as today’s equivalent of watching the low-grade TV offerings from a private TV broadcaster. Let’s not forget how many of us have played “Candy Crush Saga” or “Angry Birds” on our smartphones as a guilty pleasure.

Or the iPad being used to browse around the Social Web and watch YouTube

This issue has come to the fore over the last few years with concepts like “digital detoxification”, an interest in Internet-free mobile-phone devices including “one-more-time” takes on late-90s / early-2000s mobile-phone designs, mobile operating systems having functionality that identifies what you are spending your time on heavily, amongst other things.

Educators are even regarding the time spent using a computing device for entertainment as the equivalent of idly watching TV entertainment and make a reference to this time as “screen time”. This is more so in the context of how our children use computing devices like tablets or smartphones.

Recently, France and the Australian State of Victoria have passed regulations to prohibit the use of smartphones by schoolchildren in government-run schools with the former proscribing it in primary and early-secondary (middle or junior high) levels; and the latter for primary and all secondary levels.

Even smartphone manufacturers have found that the technology has hit a peak with people not being interested in the latest smartphones due to them not being associated with today’s equivalent of idle TV watching. This may lead to them taking a more evolutionary approach towards smartphone design rather than heavily investing in ewer products.

What it has come down to

How I see all of this is the existence of an evolutionary cycle affecting particular forms of mass media and entertainment. It is especially where the media form allows for inanity thanks to the lack of friction involved in providing or consuming this kind of entertainment. As well, the ability for the producer, distributor or user to easily “shape” the content to make a “fairy-tale” existence where the “grass is always greener” or to pander to our base instincts can expose a media platform to question and criticism.

In some cases, there is an ethereal goal in some quarters to see the primary use of media and communications for productive or educational purposes especially of a challenging nature rather than for entertainment. It also includes reworking the time we spend on entertainment or casual communications towards something more meaningful. But we still see the lightweight entertainment and conversation more as a way to break boredom.

UPDATE: I have inserted details about France and Australia banning smartphones in schools especially in relationship to the smartphone ban announced by the Victorian State Government on 26 June 2019.

Articles

Dell XPS 13 Finally Fixes the Nosecam | Tom’s Hardware

Dell G Series Gaming Laptops Get Nvidia RTX Makeover | Tom’s Hardware

From the horse’s mouth

Dell

Press Releases

My Comments

Dell has been improving their value-for-money portable computer product line and premiering some of these new products in Las Vegas at the Consumer Electronics Show 2019. Here I am calling out a few distinct improvements across the different product lines as supplied through their press material.

Some options that have been cropping up include a 1Tb solid-state disk in most product lines, NVIDIA RTX ray-tracing video chipsets in gamimg models and OLED displays in premium 15” models. But there are some computers out there that have some interesting features like a small built-in Webcam or “walk-up and sign-in” operation.

Improvements to the XPS 13 Ultrabook

Thin Webcam circuitry atop display

Dell have been incrementally improving on the XPS 13 Ultrabook by releasing the latest iteration known as the 9380 model. But this iteration isn’t just based around its silicon although it implements Intel 8th-Generation Whiskey Lake technology.

One of the main useability improvements is for the Webcam to be located in its proper position above the screen rather than below the screen as with some previous generations. This avoids videocall situations where your correspondent is looking at the ceiling or your nose when you use the Webcam located at the bottom of the screen. The problem was brought about due to Dell’s InfinityEdge “thin-bezel” approach which didn’t allow for room for a standard Webcam circuit. But it had been solved through the use of a 2.5mm Webcam circuit that allowed for a thin top bezel for the screen.

Now in the “Frost” finish with white keyboard and deck and silver back

It also implements a variable-torque hinge to make it easy to open and close, something that may please older users with hands that may not be all that great thanks to arthritis for example. Another feature that Dell is pushing is to have a fingerprint reader integrated in the power button on the computer.

The latest iteration of the Dell XPS 13 underscores the USB-C connectivity form by having three connections of this kind – two Thunderbolt 2 connections and a USB-C-only connection. This is alongside an audio jack which hasn’t been forgotten about as well as a microSD card reader.

The Dell XPS 13 is available with 8th-generation Intel “Whiskey Lake” Core CPUs (i3, i5 or i7) and Intel UHD 620 integrated graphics. It will have up to 16Gb RAM and 2Tb SSD as non-volatile storage. There will be three display options – a Full HD non-touch screen, a Full-HD touch screen or a 4K UHD touch screen. There is an expected 21-hour battery runtime for an XPS 13 equipped with a Full-HD display which will allow continuous use on one of the new non-stop longhaul flights facilitated by the Boeing 787-9 Dreamliner.

What is being underscored here is the idea of keeping the Dell XPS 13 as the value-for-money Ultrabook that “ticks the boxes” as far as “thin-and-light” clamshell-style portable computers go. Here, it is through implementing the latest technology and answering problems that the user base and computer press have raised about this model.

G-Series gaming-laptop refresh with RTX graphics option

The new Dell G Series high-performance gaming-graphics laptops

The CES 2019 exhibition became the time for NVIDIA to premiere their RTX family of ray-tracing-capable graphics processors. Dell was one of the first computer manufacturers to offer a gaming-grade computer as part of their main brand with this silicon as a configuration option.

Here, the G-Series gaming laptop range has effectively been refreshed with new Intel CPUs and the NVIDIA RTX graphics chipsets. The G-series laptops are different from the Alienware gaming brand where they are positioned with a similar approach to the “GT” or “Sport” variants of popular mainstream passenger cars which have the higher-performance powertrains.

But in some ways, these computers can be seen as an entry-level workstation for photo and video hobbyists or students starting on high-end graphics-focused computing like with architecture or statistics.

These systems will be known as the G5 15 with the 15” screen and Core i7 horsepower, the G7 15 with the Core i9 horsepower and 15” screen, and the G5 17 with the same horsepower as the G5 15 but with a 17” screen.

The system RAM can be specced up to 16Gb. This is while the storage options can be specced in the form of a single-device option with a 1Tb 5400rpm hard disk or a dual-device option with up to 1Tb M2 solid-state disk ganged with a choice of 500Gb 7200rpm, 1Tb 5400rpm or 2Tb 5400rpm hard disks.

The economy option for the display subsystem is an NVIDIA GTX 1050Ti GPU but the computer will have the Ethernet port and a USB-C port as its system-specific connections. All of the new G-Series computer can be configured with any of the RTX GPUs which will also have 8Gb of display RAM. They will have the USB-C, Thunderbolt 3 and mini DisplayPort connections as their configuration-specific options.

The common connection options would be 3 USB 3.1 Type-A ports, an SD card reader, an audio jack as well as those extra configuration-specific ports.

The 15” models can have a Full HD IPS screen 220nits brightness and 60Hz refresh rate, a similar screen with similar resolution and refresh rate but 300nits brightness, another similar screen with a similar resolution and brightness but a game-friendly 144Hz refresh rate. There is the full-on option of equipping your 15” Dell G-Series with an 4K UHD OLED screen at a 400nits brightness and 60Hz refresh rate, something that would appeal to photo and video enthusiasts.

The 17” model has fewer screen options in the form of a full HD IPS screen with 300nits brightness but a choice of 60Hz or 144Hz refresh rates.

OLED screens as a configuration option for premium Dell laptops

Speaking of OLED display technology, the XPS 15 thin-and-light, Alienware m15 premium gaming and the Dell G7 15  are able to be equipped with OLED displays rather than LCD displays. These will also be able to support high dynamic-range vision using technologies like Dolby Vision. This will make these computers appeal towards photo and video professionals who look out for increased photo-grade dynamic range,

Dell Latitude 7400 business 14” 2-in-1

Dell Latitude 7400 14″ 2-in-1 laptop with ExpressSignIn

This is a rare sight for the Consumer Electronics Show where a computer manufacturer is premiering a business-grade computer at a consumer-focused technology fair. But small-business owners may find this of value if they buy their technology through an independent computer store or value-added reseller.

Here, Dell are premiering the Latitude 7400 14” business 2-in-1 which has features that make it stand out from other business computers in its class. Here, this computer which has a Titan Grey finish is the smallest business-grade 14” 2-in-1 convertible laptop on the market.

It also has the ExpressSignIn feature that detects user presence near the machine. When the user comes near, it will wake up and activate the Windows Hello facial-recognition routine to verify that the user is authorised to operate the machine. Then, when the user walks away, the Dell Latitude 7400 will lock the user session.

It has 2 Thunderbolt 3 connections as standard and, as specifiable options, Gigabit LTE mobile broadband, 1Tb solid-state drive, Wi-Fi 6 and Bluetooth 5 connectivity. The 1Tb solid-state drive’s capacity will please those of us who effectively “live out of their briefcase” but want the high performance. As is expected for a premium business laptop, this will have the security and manageability features that would please a corporate IT team or a value-added reseller offering “big-time” IT support to small businesses.

Inspiron 7000 Series 2-in-1s gain significant design improvements

The Dell Inspiron 7000 Series 2-in-1 convertible laptops have undergone some significant revision in their design.

Rather than having an ordinary hinge, these computers have a new hinge design with a place to park the supplied active pen. This means that the pen is presented to the user without it falling out no matter whether the computer is folded over as a tablet, in a partially-folded “tent” or “media-viewer” state or a traditional laptop. It also makes sure that the hinge part looks special, as well as being part of an improved cooling and ventilation approach that understands lifestyle computing needs like bingeing on Netflix in bed or “flipping through” YouTube videos on the couch.

The improved cooling and ventilation approach is also augmented through adaptive thermal-management technology which varies the Inspiron 7000’s performance depending on whether you are moving it around or keeping it still on your desk. This avoids you handling a portable computer that is running uncomfortably hot.

The integrated power switch / fingerprint reader design has opened up a design feasibility for the 15” variant of the Dell Inspiron 7000 Series. Here, it means that the computer can be equipped with a numeric keypad which is a rarity amongst 15” 2-in-1 computers.

Still there is the limitation with this series where the USB-C port on these computers is the standard USB-C port rather than a Thunderbolt 3 port. If the Inspiron 7000 Series came with the Thunderbolt 3 port, it could then mean that these computers could be teamed with an external graphics module for at-home gaming.

Conclusion

Dell is keeping up its name as a value-for-money computer name but is assuring users that they are creating innovative designs rather than copying established ones.

Article

Cast Drawings On Your Phone To Your Television Using A Chromecast And This App | Lifehacker

Video (Click or tap to play)

Get this app here

CastPad (Google Play for Android)

– Free version has ads, in-app purchase for premium version

My Comments

The idea of using a regular TV as the electronic equivalent of a chalkboard (blackboard) or whiteboard has been explored through the 1980s thanks to a few key drivers.

A use case that was being put forward was to work with the then-new hobby of home videography thanks to the arrival of affordable video cameras and portable video recorders. Here it would be about creating title cards for one’s home video projects. As well, third-party peripheral vendors created light-pen setups that work with various home-computer platforms like the Commodore “VIC” computers (VIC-20 and Commodore 64), the Tandy TRS-80 Model 1 and the BBC Micro. The software that came with these setups included an elementary “paint” program that worked with the light-pen and allowed the (low-resolution) drawings to be saved to the computer’s secondary-storage medium (cassette or floppy disk) or printed to a connected printer.

The mouse, along with various graphics programs for later computer platform, extended the concept further even though newer computers were hooked up to displays better than the average TV set.

But the concept has been revived using the CastPad app for Android. This app allows you to draw using your finger or stylus on your Android smartphone or tablet, then “cast” it to your TV or monitor that is connected to a Chromecast or has full Chromecast ability built in. There is also the ability to “cast” to other Android devices running the same software and connected to the same logical network that the Chromecast is connected to.

You can save what you drew to your Android device but I am not sure whether it supports printing via Android’s print functionality. There is a free ad-supported version that is limited to five colours. It may be good enough to show to a child or use for games like Pictionary. But a premium version, which you can purchase through an in-app arrangement allows for infinite colours and a few more features.

A use case that was called out in the article was to improve a family Pictionary game that the article’s author played during their family’s Thanksgiving celebrations. Here, they had a Chromecast connected to their family home’s TV and used their Android smartphone to draw out the word ideas as part of gameplay.

But the app has other use cases such as conference facilities, classrooms and the like that are kitted out with a large-screen TV or video projector. Here, the CastPad app may work as a better approach to illustrating concepts in a basic manner and showing them to a larger audience as part of your presentation effort.

Apple could easily answer this app with something that runs on an iPhone or iPad and uses AirPlay to stream the canvas to an Apple TV. Or the app developers could simply port it to iOS to take advantage of that platform’s user base.

Similarly, there could be the ability to have you draw the graphic on the smartphone or tablet then project it through the Chromecast, which can be useful if you are preparing that diagram for a class. This can also be augmented with the ability to insert printed text in a range of font sizes, something that would appeal to “blackboard diagrammers”.

Apps like CastPad can exploit “screencasting” setups like AirPlay or Chromecast to turn the largest screen in the house or business in to an electronic whiteboard and the touchscreen of your device in to a “canvas”.

Article

Netgear Nighthawk 5G Mobile Hotspot – first retail 5G device

Why You’ll Still Need Wifi When 5G Is Everywhere, According To The Wi-Fi Alliance | Gizmodo

Wi-Fi Alliance: Wi-Fi, 5G will be complementary | FierceWireless

My Comments

There is some hype being driven by organisations defending the 5G mobile broadband and Wi-Fi wireless LAN technologies about their technology being the only one for our connected lives.

Some existing devices use 5G mobile-broadband technology but connect to endpoint devices like mobile phones using Wi-Fi. Initially they are routers being deployed by mobile carriers as a proof of concept or for network trials while AT&T were offering a “Mi-Fi” for retail sale in the USA that implements 5G technology. At the moment, 5G hasn’t been rolled out in the form of a smartphone or a mobile-broadband modem that is integrated in or connected by USB to a host computer.

Both Wi-Fi 5 (802.11ac and prior technologies) and 4G LTE mobile broadband have seen widespread deployment with each technology being seen by mobile users as offering a complementary role. Networks and equipment running the newer technologies (5G and Wi-Fi 6) will be backward compatible and offer a best-case approach to this compatibility. That is if both the network and end-user equipment run the same technology, the user gains the most benefit from what the new technology offers.

It has been identified that both technologies at their latest specification can complement each other. Here, 5G will earn its keep in the outdoors and in a mobile context while the Wi-Fi 6 (802.11ax) technology will earn its keep indoors. This is although public-access Wi-Fi networks will be seen by mobile carriers as a cost-effective data-offload tool.

Wi-Fi also has supporting technologies like WiGig and Wi-Fi HaLow. The former one will match 5G for speed but uses a short range equivalent to an ordinary room in the house, while the latter benefits from long range and power efficiency but doesn’t have the speed. Wi-Fi HaLow will then end up in the smart-home, smart-building, connected-car and smart-city application spaces where data throughput isn’t all that necessary. This is while WiGig will end up with virtual reality, augmented reality, 4G video and other bandwidth-intensive applications.

Then there is also the kind of spectrum available for each technology. Wi-Fi technologies primarily rely on unlicensed radio spectrum which makes them popular for households and businesses to deploy. It is in contrast to 5G which, like other cellular mobile telecommunications technologies, relies on licensed radio spectrum which the mobile carrier has to deal with the national radiocommunications authority organise and purchase a license to use.

There is also a trend regarding wireless-network equipment design where there is a software-defined approach towards the media-level components. This is facilitated with small-footprint high-capability computing power and can allow the same piece of equipment to honour newer standards.

Another factor that is never raised is the concept of the local network where data can be transferred between co-located devices at the same premises. 5G is really positioned as a wireless “last mile” setup for providing telecommunications and Internet service to the end-user. This is while Wi-Fi is intended primarily to work as a local network but is used to distribute a single broadband service to multiple endpoint devices.

What really is now seen is that the new 5G mobile broadband and Wi-Fi 6 (802.11ax) LAN technologies can complement each other in a horses-for-courses manner.