This was confirmed by Comcast, the largest operator in the United States. Enable operator to reach speeds More than 4 Gbps In both directions using the cable HFC. Testing was performed with a Broadcom based chip DOCSIS 4.0 full duplexWith the same download speed as the download speed.
Comcast wants to reach 10Gbps with DOCSIS 4.0
One of the most common disadvantages of cable is that its download speed is slower than the download speed. This lack of symmetry leaves, for example, download speeds of 1 Gbps, but download speeds of 100 Mbps. With this test, the operator progresses on his goal of hitting the width 10 Gbps Through its own cable network in the United States. All with the aim of getting more out of your existing network and not having to completely rewire it with optical fibers. in the United States of America, 85% of families They have cable network coverage.
The 4 Gbps speed It has been achieved in a simulated network in a closed environment, so its replication in the real world becomes somewhat more complicated. However, in this closed environment, the researchers say they will be able to refine it further to improve the speed and capacity of the cables. Last year they had access 1.25 Gbps is symmetric In true streak,
HFC has more clients than ADSL in Spain
To achieve this goal, DOCSIS 4.0 is the key. This standard uses network bandwidth more efficiently than previous standards, so download speed can be increased without affecting download speed. Thus, the cost savings and the impact on cities are enormous, reducing the impulse to be taken in fiber delivery.
In Spain we were “fortunate” to not have such a large deployment of cables, so there was no doubt about choosing between the current sawing (mostly copper pair) and optical fibers. HFC remains stable in homes it reaches, especially in communities like the Basque Country where there is an extensive cable network. According to the latest available data from CNMC, in February 2021 she was there in Spain 2.13 million lines with HFCs, Which contrasts with 1.7 million ADSL and 11.7 million already reached by FTTH. In February last year, the figure was 2.22 million, so the decline is still slow, with only 100,000 lines down in one year.
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