Why do i need 4g




















In case of OFDMA, a digital data stream that needs to be transmitted is split into multiple pieces, each of which is modulated onto a separate carrier. These sub-carriers are combined together at the end. WiMax processes all the information in a wide channel.

In case of Clearwire's implementation of WiMax, that means the about two-thirds of the channel is used for downloads, while a third is used to upload data. LTE splits the channel into two parts using frequency-division multiplexing, so the download and upload speeds are better balanced. Peanut butter or chocolate? Lost or The Wire?

Havaianas or Birkenstocks? There's no easy answer. It depends on where you are and what you can get access to. If you want 4G now, WiMax is pretty much your only choice. It's also an open standard supported by IEEE. And it is less expensive for service providers to upgrade their equipment to than LTE. But LTE is coming and almost all the major U. So ultimately, LTE might win in the long run.

Before buying your new phone check the specifications to see if it's 4G ready. When you compare handset deals with Uswitch you can scroll down below the table to find the features tab. In general, all heavily advertised, so-called flagship phones will offer 4G. But it's increasingly the norm on mid-range and even low-end smartphones too. Because you're getting a faster connection and can do more with your handset, 4G contracts are more expensive than 3G.

But with competition mounting, downward pressure in prices will eventually mean 4G smartphone contracts that are priced in line with 3G contracts. Opting for a 4G tariff may cost you more than a 3G one but it's likely to be more cost effective in the long run because of the perks.

For example you will get faster speeds and a stronger connection. Broadband provider now offers a 'good, honest' mobile service too.

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Find out more by reading our Cookie Policy. Uswitch Mobiles All articles. And you'll also likely use more data when connected to a hotspot, and possibly paying more for data overages. Mobile videoconferencing isn't new; Skype has offered mobile videoconference functionality for years and Apple brought it to the masses of iPhone users with FaceTime.

But LTE makes smartphone videoconferencing actually work. And work well. Either video quality is poor and audio is delayed or video is choppy. Videoconferencing gets old quickly when your network isn't fast enough to offer a seamless audio and video experience. LTE speeds are fast enough for videoconferencing to work the way it's supposed to.

Personally, I don't really use videoconferencing that often, but I can say that experience is much more enjoyable when two people with LTE phones and solid coverage connect than when one or both parties is on a slow wireless network. Bottom line: If you live in an area where LTE is spotty or nonexistent, you shouldn't rush to upgrade to a compatible device and wireless service plan.

But if you live in an urban area like Boston where LTE is alive and well and you want to do more with your smartphone, the future is now. Former CIO. Al also managed CIO.

Al resides in Boston and is a passionate reader, traveler, beer lover and Red Sox fan. With standard 4G you can download a 2GB HD film in 3 minutes 20 seconds, while it would take over 25 minutes on a standard 3G network. This offers theoretical speeds of up to 1. You can expect the availability of LTE-A to increase in the coming years and speeds could get faster still. For example, Ericsson has developed technology which could allow for peak real-world 4G speeds of 1Gbps, though this will not likely be available for a while if at all.

This at the time of writing offers average download speeds in the region of Mbps, with peak speeds of over 1Gbps, and the potential for it to get far faster still. This means that a device connected to a 4G mobile network will get a quicker response to a request than the same device connected to a 3G mobile network.

The improved latency times, reduced from 80 milliseconds 3G to around 45 milliseconds 4G , may not seem that significant on paper.

However, they can make a significant difference when playing online games and streaming live video. Find out more about the benefits of 4G for gaming.

On 5G, latency is lowered further still, coming in at around ms based on Ookla data from late , and likely to further decrease as 5G infrastructure improves. Effectively, VoLTE rides on the back of the 4G network and brings crystal clear voice calls and video chat to your 4G mobile phone.

Check out our full VoLTE guide for detailed information on availability. Coverage and speeds differ between the operators, but they all have an active 4G network and offer 4G tariffs to their customers.

A sda Mobile. B T Mobile.



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