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If a node A on the Internet is closer (fewer hops away) to the Internet backbone than a node B, then A is said to be upstream of B or conversely, B is downstream of A. Related to this is the idea of upstream providers. An upstream provider is usually a large ISP that provides Internet access to a local ISP. Hence, the word upstream also refers ...
Dec. 13—Spectrum has announced that it has launched gigabit upstream speeds for Spectrum Internet Gig customers across Rochester, Austin, Albert Lea and the surrounding Spectrum areas, matching ...
For example, if the cable modems on every service group use 24 channels for downstream, and 2 channels for upstream, then 3 downstream connectors can service the cable modems on two service groups, and be serviced by 1 upstream connector. [5] A service group may serve up to 500 households. A service group has channels, whose bandwidth is shared ...
A high-split increases the upstream frequency range to 5–204 MHz, supporting a total shared upstream capacity of ~1.5 Gbit/s (assuming 4 SC-QAM + OFDMA channels) for the service group. [ 26 ] DOCSIS 4.0 in both full-duplex (FDX) and extended spectrum DOCSIS (ESD) configurations will support upstream speeds surpassing 5 Gbit/s.
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This spectrum overlaps the FM broadcast band between 87.5 and 108 MHz, as well as various military and government radio services. To limit interference to those radio services, the ITU-T G.9700 recommendation, also called G.fast-psd, specifies a set of tools to shape the power spectral density of the transmit signal; [ 9 ] G.9701, codenamed G ...
Improving internet speeds for customers can be carried out by reducing the number of service groups with subscribers from 500 subscribers to no more than 128, in what is known as a n+0 architecture, with a single node and no amplifiers. [93] [94] [83] HFC networks operating at 1.8 GHz [95] to 3 GHz have been explored with GaN transistors.
On Wednesday, Broadcom Inc (NASDAQ:AVGO), Charter Communications Inc (NASDAQ:CHTR), and Comcast Corp (NASDAQ:CMCSA) announced the joint development of Unified DOCSIS chipsets for network nodes ...