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T - Mobile ’s rivals may benipping at its bounder in the 5 G airstream , but the Uncarrier is dictated to appease in front of the plot . It not only sport the fastest and most expansive 5 G web in the U.S. , but it ’s actively work on technologies that will help it attain even expectant peak stop number .
Two year ago , T - Mobile used a relatively new technique recognize as 5 gibibyte Carrier Aggregation ( 5 G CA ) toachieve the kind of 3Gbps download speedson midband relative frequency that had previously been the exclusive domain of super high-pitched ( and highly short - range)mmWave engineering . Now , it ’s chalked up another 5 K first by call for vantage of the late developments to shatter the traditional cap on upload speed up oversub-6GHz frequency .
T-Mobile’s newest 5G record
The new proficiency is known as uplink transmit ( UL Tx ) switching , and it ’s similar in canonic principle to the 5 gm CA technique used to reach 3Gbps download speed , except that it uses more channels to deliver more capacity .
However , UL Tx goes a big step beyond that . With 5 G CA , T - Mobile flux multiple 5 G channels across three distinct oftenness bands from 1.9GHz to 2.5GHz to give it more bandwidth . UL Lone-Star State switching stands on the shoulders of those immune carrier collecting technology to aggregate dissimilar frequencies into a individual uplink band , but then adds single - user multiple input , multiple output ( SU - MIMO ) to the mix to send multiple streams and seamlessly switch between relative frequency to take maximum advantage of all the electrical capacity that ’s uncommitted across that entire spectrum .
To use the description fromT - Mobile ’s press release , “ It ’s like read the 5 G motorway and adding new fast lane with excess capacity for traffic to zoom quicker than ever . ”
The result is that T - Mobile has been able to achieve speeds of 345Mbps on its 5 grand standalone internet , breakingits own previous record of 275Mbps that it announced less than a month ago .
The Uncarrier did n’t name the specific smartphone used to direct the mental testing , enunciate only that it was “ power by a flagship Snapdragon Modem - RF organization from Qualcomm Technologies . ” However , some might consider it telling that last calendar month ’s record book was announce alongside the accessibility of the Snapdragon 8 Gen 3 - poweredSamsung Galaxy S24lineup .
“ This accomplishment is a testament to our relentless pursuit of conception and our commitment to delivering an even expert internet experience to our customers , ” said Ulf Ewaldsson , president of technology at T - Mobile . “ Uplink transmit switching has the potency to significantly hike upload speeds and capacity , and we pray our partners around the globe to work up the capability into the 5 G ecosystem moving forrader . ”
The fastest speeds at the best range
What pee T - Mobile ’s accomplishment so groundbreaking ceremony is n’t just the raw f number it ’s been able-bodied to achieve , but the fact that it ’s done so usingmidband 5 guanine frequencies .
We ’ve long go out reports of 5 G applied science delivering download speeds of up to 4Gbps and upload speeds above 1Gbps . A mere 345Mbps may not seem that telling by comparison .
The problem is that those blazing - fast speeds have traditionally only been useable on mmWave networks , which operate at extremely high relative frequency that typically function above 24GHz . This spectrum bid unbelievable content , but also has a range of mountains of about a city mental block .
There ’s an inverse relationship between ambit and capacity ; as oftenness increase , so do hurrying , but the range go down . On the other end of the spectrum from mmWave , low - band 5Gcan pass on for Roman mile , but you wo n’t get stop number that are much better than what 4G / LTE can render .
That ’s why the midband frequency — the 1 from 2GHz to 6GHz — have long been considered the sweet spot for the time to come of 5G. These are also sometimes referred to as C - stripe spectrum , although that ’s not entirely accurate , as the C - banding frequency make up only a tiny portion of that spectrum , specifically a 3.7GHz to 3.98GHz slice in the heart . C - band is used mainly by Verizon and AT&T , while T - Mobile has place up its theme summer camp in the 2.5GHz zone .
The midband spectrum offers the good counterpoise between grasp and capacity , but it ’s also clear thatspeeds are start to plateauwith the limitations of existing 5 gee technology . That ’s why T - Mobile has been aggressively experimenting with new techniques like 5 GB CA and UL Tx to vary the normal and allow it to extradite unprecedented speeds that do n’t sacrifice cooking stove .
In practical term , this means the same towers that T - Mobile has deployed today could someday return speeds that equal the best mmWave net without the need to deploythe tens of M of additional transceiversnecessary to blanket a densely populated city with mmWave reportage .
