What is 5G and how can it be faster in the future generation wireless technology era is a question. Although the 2017 Mobile World Congress trade show in front to reveal a plethora of new smartphones, 5G mobile network news is expected to showcase in a big way. The waiting is over now, the 5G could be the same as gigabit networks? LTE Advanced? While AT&T and T-Mobile renamed HSPA+ as “4G” data to cover for their lack of LTE support? Many questions arise when we are going to discuss about the 5G wireless technology. Here are the details.
The official 5G logo has been revealed earlier this month, and on the same month Verizon has also announced its plans regarding 5G mobile networks in the US and other 11 regions. Originally, the International Telecommunication Union (ITU) released a new report to just confirm minimum requirements related to technical performance for IMT-2020 or 5G radio interface(s) which support the newer capabilities of those systems beyond IMT-2000 and IMT-Advanced. This outlining those 13 specifications that will essentially need to meet for networks to call themselves 5G.
There’s no doubt that the 5G technology will be the official successor to 4G wireless communications as the fifth-generation mobile wireless communications tech. The name alongside the official logo was announced by 3GPP cellular standards group. After announcing 5G as IoT-focused technology, the 3GPP did not go into a better detailing. Now that, some of 5G’s specs have been provided by the ITU that are very much required in order for networks to be deemed 5G-capable.
Traffic channel link data rates normalized by bandwidth
|Test environment||Normalized traffic channel link data rate (Bit/s/Hz)||Mobility (km/h)|
|Indoor Hotspot – eMBB||1.5||10|
|Dense Urban – eMBB||1.12||30|
|Rural – eMBB||0.8||120|
You should reliably get 100Mbps downloads and extremely low lag, as the draft 5G specs lay the groundwork for a real standard. However, the super-fast wireless is starting to take shape, the telecom industry hasn’t really defined what 5G is, which is one gearing problem. With all the hype around early 5G launches and tests, the ITU has published that set performance expectations.
Highlighting that, as a user, you should get 100Mbps downlink and 50Mbps for uploads – unlike with LTE, though, the 5G’s more of a consitent baseline than a theoretical maximum. Should also see extremely low lag of no more than 4ms (versus 20ms for LTE), and service should work on trains traveling as quickly as 500km/h (almost 311MPH). In short, this briefs as fast as a good home internet connection.
List of minimum requirements for peak data rate, spectral efficiencies and target values for both downlinks and uplinks (in the Dense Urban – eMBB test environment):
- Downlink peak data rate is 20Gbps
- Uplink peak data rate is 10Gbps
- Downlink peak spectral efficiency is 30 bits per second per Hz
- Uplink peak spectral efficiency is 15 bits per second per Hz
- Downlink user experienced data rate is 100Mbps
- Uplink user experienced data rate is 50Mbps
On the back end, cell sites should have a minimum of 20Gbps downstream and 10Gbps upstream to share with their connected users. 5G should support at least 1 million connected devices per square kilometer (about 0.38 square miles). While the 20Gbps download capacity is very much significant of that compared to current 4G LTE Cat.6 modems that are around 1Gbps.
According to Ars Technica notes, 5G will require carriers to have at least 100MHz of free spectrum, and up to 1GHz where available. The specs for 5G also requires base stations that can support access from 0kmph to 500kmph vehicular speed. The source also mentioned that this is more likely for low-demand Internet of Things devices rather than urban hubs full of smartphones.
The 5G networks also should offer users a maximum latency of just 4ms, down from about 20ms on LTE cells. 5G also calls for a latency of just 1ms for ultra-reliable low latency communications (URLLC).
There’s still the chance that these specs could change anytime soon and when they’re likely to be approved at an ITU meeting in November. The IMT-2020 standardization process shows the process to turn the 5G draft spec into real technology that stretches till 2020. Qualcomm have already begun testing 5G technology. The main highlight of the MWC trade show is 5G and other companies including Samsung, Nokia and Intel has already revealed their 5G plans.