G.hn
G.hn , also known as the "HomeGrid Standard", is the name that has become common for the "next generation" of home network technology . The technical standard was developed by the International Telecommunication Union (ITU) and is funded by the HomeGrid Forum industry association and other organizations.
The standard supports digital networking via power , telephone and cable television cables with data transmission rates of up to 1 Gbit / s. On October 25, 2010, the Californian company Sigma Designs presented the first G.hn-compliant chipset under the designation “CG5110”.
G.9955 (originally called "G.hnem") is a supplementary standard that specifies a simplified, narrow-band variant for intelligent power grids and home automation applications. The specification was completed in December 2011.
technology
G.hn is a carrier frequency method that works with a (gross) signal rate of a total of one gigabit per second. Several partial data streams are sent over the medium modulated onto several carriers using the orthogonal frequency division multiplex method (OFDM). The subcarriers are each modulated with quadrature amplitude modulation (QAM) up to 4096-QAM (12-bit QAM). Several complexity profiles and options for adapting to different transmission media are provided. MIMO technologies can be used for cables with more than 2 conductors . Ethernet packets are normally transmitted via G.hn's Protocol Data Unit (PDU) . The standard provides for forward error correction and includes options for encrypting both individual transmission links in the network ( point-to-point encryption ) and the entire route between two end devices ( end-to-end encryption ) according to the Advanced Encryption Standard (AES).
media
The idea behind G.hn is that a single device such as a router can be used for digital networking (especially) in private households, regardless of which cables are used to transmit the data in the home network. All existing cables from the field of electricity, telephone, television or network can be used. In particular, the power cables in each room offer an inexpensive and uncomplicated way of broadcasting Internet television and broadband Internet via cable throughout the house. Such “ carrier frequency systems ” (Powerline) already exist for private households, but they are not based on a uniform standard and are therefore not compatible. The interest group behind G.hn, the “HomeGrid Forum”, praises the lower costs of hardware development and the simplified installation by private consumers and laypeople as the advantage of standardization (which of course also entails lower costs).
Development and standardization process
The standardization process was completed in June 2010 with the adoption of the third and final section of the standard. The ITU recommendation G.9960 , which was adopted on October 9, 2009, defines the physical layer and the architecture of G.hn. The data link layer (recommendation G.9961) was adopted on June 11, 2010. A coexistence protocol (G.9972) was also adopted. Over 20 companies participated in the ITU's standardization efforts, including some telecommunications companies and manufacturers of telecommunications equipment and home network technology.
Chipset availability
The Californian company Sigma Designs, Inc., whose Israeli subsidiary CopperGate sells hardware for television over IP-based networks (IPTV), presented the first G.hn-compliant chipset under the designation "CG5110" on October 25, 2010. For 2011, CopperGate was still anticipating a "broad availability of devices based on G.hn". The company CopperGate sees itself as a leader in the implementation of the G.hn standard, mainly due to its previous experience with the network technology Homeplug AV .
On January 3, 2011, the company Lantiq, which has been spun off from Infineon and based in Neubiberg near Munich, presented the world's second G.hn-compliant chipset under the name "Lantiq XWAY HNX". A "G.hn Powerline Networking Evaluation Kit" including complete documentation, Linux software and drivers for other Lantiq components has been available since January 31, 2011.
On September 27, 2011, the US company Marvell Technology Group announced that it had a G.hn-compliant chipset in its range. This chipset is named 88LX3142 and 88LX2718. The reference implementation of the Marvell chipset under the designation GE-DW360F has been available to device manufacturers since January 2013 at the latest.
Availability of devices
On June 5, 2012, five modem manufacturers announced that they would produce adapter and modem technology based on Marvell's G.hn implementation. This is the reference design GE-DW360F based on the Marvell chip. The devices include: The Powerline adapter BiPAC 2094 R2 from Billion Electric Co. Ltd. from Taipei , the Powerline adapters PG-9070 and PG-9170 from Comtrend from Irvine, California, the G.hn modem ZXHN H505 from ZTE Corporation from Shenzhen and the modem DH-ED31GP from Delta Networks, Inc. from Taipei.
On January 9, 2013, Comtrend, based in Irvine, California, announced that it had developed a power line adapter for the end customer market ( telephone, Internet and television ) offers. The device, which enables installation at home according to the "plug-and-play" principle, is called "PowerGrid 9051s".
On February 9, 2013, the company ALLNET from Germany published that it offers two g.hn adapters based on the Marvell chipsets: ALL-GHN101-2wire (two-wire cabling) and ALL-GHN102-COAX (coaxial satellite cable).
At the IFA 2018, the company devolo from Aachen presented its first G.hn-based products called "Magic".
Individual evidence
- ↑ HomeGrid to standardize home networking , heise online, April 30, 2008
- ^ Marius Strobl: Standardization of Powerline Communication by IEEE and ITU-T . GRIN Publishing GmbH, Munich 2013, ISBN 978-3-656-49752-3 , p. 5.
- ↑ "Sigma Designs Unveils Industry's First G.hn Chipset." ( Page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice. , Market Watch website, last accessed October 27, 2010
- ↑ "ITU-T WORK PROGRAM." , ITU website, last accessed on November 7, 2012
- ↑ "G.9955. Narrow-band OFDM power line communication transceivers - Physical layer specification" , the ITU website, last downloaded 7 November 2012
- ↑ "Why do we need a unified standard at all?" ( Memento of the original from June 22, 2009 in the Internet Archive ) Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. , Blog of the HomeGrid Forum (English)
- ↑ New ITU standard opens doors for unified 'smart home' network , ITU press release (English)
- ↑ Basic Information on AAP Recommendation: G.9961 , Internet page of the ITU, accessed on February 4, 2010 (English)
- ↑ Sheila Lashford: United Nations ITU-T's G.hn Approved as Global Standard for Wired Home Networking. (No longer available online.) In: HomeGrid - Press Releases and News. HomeGrid Forum, June 11, 2010, archived from the original on September 11, 2010 ; accessed on June 14, 2010 (English). Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ "CG5110 with Clearpath Extreme" ( memento of the original from January 15, 2011 in the Internet Archive ) Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. , CopperGate website, last accessed December 22, 2010
- ↑ "The future of Home Entertainment Networking is G.hn and the future of G.hn is CopperGate." ( Memento of the original from July 1, 2010 in the Internet Archive ) Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. , CopperGate website, last accessed July 6, 2010
- ↑ "Lantiq presents chip family for the worldwide ITU-T G.hn standard for home network applications" ( page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice. , Lantiq website, last accessed May 4, 2011
- ^ "Marvell introduces ITU-T G.hn compliant transceiver chipset" , website of the SIP Trunking news site, September 27, 2011, last accessed on January 23, 2013
- ^ "G.hn Gains Momentum with Marvell Silicon" , AnandTech, September 27, 2011, last accessed on January 23, 2013
- ↑ "G.hn Powerline Wall Plug" ( memento of the original from January 8, 2015 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. , Marvell, last accessed January 23, 2013
- ^ "Five OEMs select Marvell G.hn Powerline chipset" , Telecompaper, last accessed on January 23, 2013 (in English)
- ↑ "BiPAC 2094 R2, HD200 Powerline Wall-Plug Adapter with noise-filtering power socket" ( Memento of the original from February 19, 2013 in the Internet Archive ) Info: The archive link was inserted automatically and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. , Billion Electric Co. Ltd., last accessed on January 23, 2013 (in English)
- ↑ "PG-9070 Powerline Ethernet Adapter" ( Memento of the original from April 7, 2014 in the Internet Archive ) Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. , Comtrend, last accessed on January 23, 2013 (in English)
- ↑ "PG-9170 Powerline Ethernet Adapter" ( Memento of the original from April 7, 2014 in the Internet Archive ) Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. , Comtrend, last accessed on January 23, 2013 (in English)
- ↑ "Comtrend Selects Sigma Designs Next Generation G.hn chipset" , Comtrend, January 9, 2013 last accessed (in English) on January 23, 2013
- ↑ "PG 9051 (s) Powerline Ethernet Adapter" ( Memento of the original from March 4, 2016 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. , Comtrend, last accessed on January 28, 2013 (in English)
