At the beginning of 5G construction
The per capita monthly traffic is 8G
And now it has risen to more than 24G
The people's demand for high-quality networks is endless
From 2G to 5G networks
The internet speed is getting faster and faster
This is due to the increased bandwidth
According to the Shannon formula
The greater the bandwidth, the greater the maximum communication rate
It's like a road where a vehicle is moving
The wider the road, the more and faster the traffic
Wi-Fi is even faster
Then you want the signal to be upgraded
Widen the "road" a little more
Isn't it?
But the spectrum is limited!
Spectrum is a valuable resource for wireless communications
It's like the land resources of the earth
The arrival of every G
They all have to build a separate road for this G
And how wide the road is to be built has long been assigned
2G has built a number of secondary roads
3G built a main road
4G builds a fast road
5G is coming on high speed
The "road" here
Refers to the carrier wave of wireless communication
It carries the radio waves of the data stream
Data is carried back and forth between the mobile phone and the base station
2/3/4/5G different formats
It's like a variety of roads between cities
All have to monopolize a period of land resources (spectrum)
It cannot be shared
In a limited land, there are intricate intertwined roads
Congestion came as scheduled
What to do?
One of the killer features of 5G-A
3CC three-carrier aggregation
Emerged!
To put it simply
Put three different types of roads
Aggregate into a wider road
Type 1: Aggregation of successive carriers in the same frequency band
"It's like a tidal lane in the morning and evening rush hours
Took advantage of the adjacent road"
Type 2: Aggregation of non-contiguous carriers in the same frequency band
"It's a bit of a problem, like there's a river between the two roads."
Type 3: Aggregate carriers on different frequency bands
"That's hard,
It is equivalent to putting a trail
Merge onto a highway dozens of kilometers away"
3CC carrier aggregation for 5G-A
It's a bit more complicated than 4G
The frequency bands of 5G are divided into two categories, FR1 and FR2
FR1 also encompasses a number of things that have been passed down from previous generations
FDD、TDD频段
FDD is passed through different spectrums
to distinguish between the upward and downward lanes
TDD is on the same spectrum
Distinguish between up and down lanes by time
But whether it is FDD or TDD carriers
with 3CC technology
Aggregate them together
Dramatically increase the speed of your network connection
In high-traffic places
The network speed can be several times higher than the basic speed of 5G
The network will no longer be congested
It can also be used for high-definition live streaming, XR/VR, etc
Cutting-edge 5G+ application scenarios provide strong support
Arguably
This is a milestone innovation breakthrough in the communications industry
This technology is now commercially available
......
When 3CC meets Jiaxing South Lake
China Mobile Zhejiang, together with Qualcomm and ZTE, completed the commercial verification of 5G-A downlink three-carrier aggregation + 1024QAM in Jiaxing, with a single-user rate exceeding 5.4Gbps.
When 3CC meets Beijing
China Mobile Beijing and ZTE took the lead in realizing 2.6G (100+60M) + 4.9G (100M) 3CC continuous networking deployment in key and high-traffic areas such as university clusters, Yuanmingyuan, Financial Street, Shougang Park, and Fuxingmen. Measured data shows that the downlink peak rate can exceed 4 Gbps.
When 3CC Meets "Erbin"
Heilongjiang Mobile Harbin Branch and ZTE jointly completed the first 5G-A 3CC technology application in Heilongjiang in Bingcheng, and completed the application of 5G-A three-carrier aggregation technology in the Ice and Snow World Park, expanding the available bandwidth from 100M to 260M by networking the 2.6G (100M) + 2.6G (60M) + 4.9G (100M) frequency bands, and the measured single-user downlink peak rate is as high as 4250Mbps.
When 3CC meets East Lake Plum Garden
Hubei Mobile and ZTE officially deployed a 5G-A three-carrier aggregation demonstration area in Wuhan's Chuhe Han Street business district and the well-known tourist attraction Donghu Meiyuan, which will network the 2.6GHz (100M+60M) and 4.9GHz (100M) frequency bands, achieving 260M usable ultra-large bandwidth and a measured download rate of more than 4Gbps.
When 3CC meets the ancient city of Kashgar
Xinjiang Unicom and ZTE jointly opened a 5G-A three-carrier demonstration area in the ancient city of Kashgar, using 3.5GHz (200M) + 2.1GHz (20M) three-carrier networking, using 2.1G to solve the problem of limited 3.5G uplink coverage, with a maximum downlink peak rate of more than 3.4Gbps, far exceeding the traditional downlink rate of 5G, providing a network experience for immersive tourism.
When 3CC meets Daming Lake
Shandong Mobile and ZTE completed the commercial use of three-carrier aggregation based on 2.6G and 4.9G frequency bands. Shandong Mobile has deployed 3 CC sites in succession, and the overall experience rate can reach more than 4 Gbps in the 10 Gigabit experience area of Daming Lake, Baotu Spring, Henglong, World Trade Center, Furong Street, Kuanhouli and other commercial scenic spots.
When 3CC meets Zhangjiajie
Hunan Mobile and ZTE jointly implemented the first 5G-A 3CC technology in Zhangjiajie to apply two 5G-A 3CC technologies at the same time to ensure the non-inductive communication and smooth live broadcast of more than 300,000 viewers at the Lantern Festival in real time. The three-carrier networking of 2.6G (100M) + 2.6G (60M) + 4.9G (100M) is used in Helong Stadium, and the three-carrier networking of 700MHz (30M) + 2.6GHz (100M) + 4.9GHz (100M) is verified in Dayong Ancient City to provide users with higher quality and ultimate experience.
When 3CC catches the Xulan high-speed railway
Shaanxi Telecom and ZTE jointly deployed a 2.1GHz+3.5GHz three-carrier aggregation network in the Weinan section of the Xulan high-speed railway, and the average downlink rate of users on the high-speed rail at a speed of 300km/h was nearly 5 times higher than that of the original 2.1G network, and the high-speed rail signal was fully upgraded.
Imagine that
You embark on a journey
Enjoy a silky smooth internet connection
It's no longer a dream
The mobile network of the future
It will be more stable, fast and reliable
ZTE continues to work with operators and partners
Carry out in-depth joint innovation on 5G-A technology