Copper technology welcomes a new life Broadband don't forget the light copper mix

The continuous development and maturity of optical fiber technology and the continuous popularization of application scenarios have made broadband acceleration construction in full swing, and people's eyes are also focused on "light into copper retreat", hoping for capability improvement and business breakthroughs brought by new technologies, and faster speed enjoyment
.

And the old things are often unwilling to quietly withdraw from the historical stage, although the focus has shifted from themselves, but still strive to exert their residual enthusiasm, reminding people that "I am still there"
.

Retreat

With the advancement of broadband China strategy, "light into copper retreat" has been the keyword of the entire broadband access network construction, operators have also devoted great enthusiasm to this, increase broadband acceleration, this year the Ministry of Industry and Information Technology launched the broadband acceleration 2013 special action plan, three operators and put forward their own broadband acceleration goals, it is understood that the three major operators of the broadband acceleration goal has been completed, in the first half of the year, large-scale broadband construction also occupied more funds for operators, FTTH brought high bandwidth access at the same time , which has brought greater financial pressure
to operators.

Large-scale deployment and large capital investment bring not high returns, but the problem
of "incremental without increasing revenue".
The industry chain can't help but reflect, how to implement the established broadband strategy? Is the strategy of "light in and copper retreat" feasible? After the "light into copper retreat", how to deal with a large number of idle copper wire resources?

The cost pressure and deployment difficulty of fiber into the home have forced operators to reconsider the value of
copper wire.
As a result, a silent struggle won with the copper wire's "advancing by retreat", and at the same time preserved his role in the big drama "Broadband China", although he was not the male number one
.

Rejuvenated

From a global perspective, the idle copper line resources are not a unique phenomenon in China, but a common problem, but in the global wave of national broadband movement, because China's telecom operators DSL deployment is the widest, copper resources are the largest, so this phenomenon is the most serious
.

FTTH's network transformation involves excavation, wiring, drilling into the home and other construction links, for the construction requirements are high, but also often face resistance from the owner, the promotion resistance is large, and the copper wire transformation plan can maximize the recycling, use the existing copper pipeline resources, upgrade, without changing the existing pipeline
.

"For operators, how to use existing resources to exert greater value is an important issue
.
" Ernie Bahm, senior product marketing director of broadband operation access products of Broadcom Broadband Communications Group, said that copper lines themselves have certain high transmission potential, and the technology that restricted the upper limit of copper wire rates in the past has now made breakthroughs, which will help operators better improve resource utilization
.

It is understood that Huawei, Shanghai Bell and other system equipment vendors have based on copper network upgrade to meet high-bandwidth access solutions, during the 2013 Communications Exhibition, Shanghai Bell relevant experts revealed that operators have deployed copper resources, many copper wire quality is still very high, the use of VDSL technology, can quickly and effectively achieve broadband access rate improvement, if the use of VDSL2 vectorization technology can achieve 100M broadband access
within a certain distance.

At present, domestic operators are focusing on the application of VDSL technology in the live network, and have successively piloted high-bandwidth access capabilities such as 100M in many places to pave the way
for later 100M deployment.
It is worth mentioning that in the first half of this year, domestic operators have vigorously promoted the transformation of copper-based networks, and a vendor expert revealed that the scale of copper network transformation even exceeded the expansion of FTTH
.

Outlook for the future

The biggest challenge in the implementation of the "Broadband China" strategy is that optical fiber is in the home, and optical input and copper retreat face many practical problems
.
The original ADSL telephone network is all transformed into optical fiber, one is the huge investment, the other is a long time, and the third is that there are various problems that need to be coordinated into the community to transform the line, from pipeline transformation, coordination with the property into the community to coordination with residents into the household, these problems are a great challenge for operators, and have a great impact
on the implementation of the entire strategy.

Data analysis by telecommunications analyst Heavy Reading shows that it will take at least 10 years to achieve 50% of the
country's average fiber coverage.
Most operators cannot afford to wait 10-20 years to launch higher bandwidth services after FTTH is fully implemented, they need to deal with the fierce competition that exists and meet the growing bandwidth demand of users, which is why they choose to deploy FTTx
.
Most operators have set 2020 broadband targets, aiming to achieve full broadband coverage
by using fiber, DSL, and wireless hybrid networking.

According to industry experts, most of the world's major operators do not use optical fiber technology to achieve broadband deployment, but more adopt the "optical and copper hybrid" deployment strategy to greatly reduce construction costs and network deployment cycles
.
This not only solves the problem of balancing construction costs and bandwidth requirements, but also delivers more bandwidth to more users
faster.

The deployment scheme of optical and copper parallel is the future access network deployment has become the consensus of the industry chain, and the next task of operators and equipment manufacturers will revolve around the innovation of copper network technology, how to better use existing resources, how to better play the waste heat of copper wire is a practical problem
that must be considered.

VDSL innovations

Manufacturer: Alcatel-Lucent

Name: Copper Wire Solution Toolbox

Features: By providing FTTx fiber and copper solution toolbox, customers can achieve "fast up, faster" network deployment
.
With the Alcatel-Lucent FTTx toolbox, operators can combine different FTTx deployment models to deliver higher broadband
to more subscribers in the fastest and most cost-effective way.
The FTTx toolbox provides ultra-high-capacity FTTH solutions, vector-based FTTN/B solutions, and vector-based highly flexible micronode FTTcurb/dp solutions
.

Name: G.
FAST vector technology

Features: It can provide the ultimate 1G bandwidth
for existing copper users.
Similar to VDSL2, G.
FAST also requires vector techniques to eliminate crosstalk
between multiple users.
This technology is suitable for ultra-short distance copper wire transmission
of less than 100 meters.

Manufacturer: Huawei

Name: Vectoring technology based on copper wire

Features: Vectoring eliminates crosstalk
by doing downlink precoding and upstream joint acceptance in DSLAM.
In the case that the crosstalk signal is relatively small than the direct signal amplitude of the line, Vectoring can obtain close to crosstalk-free working conditions, and achieve a high bandwidth access rate
of 100M within 300 meters.
At the same time, VDSL2 using Vectoring technology can provide up to 100Mbps average access bandwidth within 300 meters of access distance, and 80 Mbps at a typical access distance of 500 meters, which is 70%
higher than when not using Vectoring technology.

Manufacturer: Lantiq

Name: VDSL chipset family - XWAY VRX300

Features: Gateways based on the new chipset can achieve data rates of 200Mbits (using two-pair twisted pair bonding technology) and up to 150Mbits (vectoring technology with system-level crosstalk cancellation), while supporting a range of home networking features, including built-in WLAN (Wi-Fi), Gigabit Ethernet, and VoIP
.