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39-589: The HTC MAX 4G was the world's first commercial WiMAX phone announced on the HTC website in a November 12, 2008 press release. It is based on Windows Mobile 6.1 . The phone is developed by the High Tech Computer Corporation of Taiwan and is similar in looks to previously released HTC Touch HD . It is the first phone from the HTC Touch Family to incorporate GSM & WiMAX technology. The phone

78-428: A scheduling algorithm for which the subscriber station needs to compete only once for initial entry into the network. After network entry is allowed, the subscriber station is allocated an access slot by the base station. The time slot can enlarge and contract, but remains assigned to the subscriber station, which means that other subscribers cannot use it. In addition to being stable under overload and over-subscription,

117-492: A half duplex FDD, that allows for a low cost implementation. Devices that provide connectivity to a WiMAX network are known as subscriber stations (SS). Portable units include handsets (similar to cellular smartphones ); PC peripherals (PC Cards or USB dongles); and embedded devices in laptops, which are now available for Wi-Fi services. In addition, there is much emphasis by operators on consumer electronics devices such as Gaming consoles, MP3 players and similar devices. WiMAX

156-564: A mix of 2.5 GHz, 3.3 GHz and other frequencies. Pakistan 's Wateen Telecom uses 3.5 GHz. Analog TV bands (700 MHz) may become available, but await the complete digital television transition , and other uses have been suggested for that spectrum. In the USA the FCC auction for this spectrum began in January 2008 and, as a result, the biggest share of the spectrum went to Verizon Wireless and

195-406: A more robust mode (burst profile) which means fewer bits per OFDM/SOFDMA symbol; with the advantage that power per bit is higher and therefore simpler accurate signal processing can be performed. Burst profiles are used inverse (algorithmically dynamic) to low signal attenuation; meaning throughput between clients and the base station is determined largely by distance. Maximum distance is achieved by

234-512: A much lower bitrate. Conversely, reducing the range (to under 1 km) allows a device to operate at higher bitrates. A citywide deployment of WiMAX in Perth , Australia demonstrated that customers at the cell-edge with an indoor Customer-premises equipment (CPE) typically obtain speeds of around 1–4 Mbit/s, with users closer to the cell site obtaining speeds of up to 30 Mbit/s. XDSL Too Many Requests If you report this error to

273-640: A number of applications including broadband connections, cellular backhaul , hotspots , etc. It is similar to Long-range Wi-Fi , but it can enable usage at much greater distances. The scalable physical layer architecture that allows for data rate to scale easily with available channel bandwidth and range of WiMAX make it suitable for the following potential applications: WiMAX can provide at-home or mobile Internet access across whole cities or countries. In many cases, this has resulted in competition in markets which typically only had access through an existing incumbent DSL (or similar) operator. Additionally, given

312-421: A springboard past its competitors. The cable companies were expected to provide media services to other partners while gaining access to the wireless network as a Mobile virtual network operator to provide triple-play services. Some wireless industry analysts, such as Ken Dulaney and Todd Kort at Gartner, were skeptical how the deal would work out: Although fixed-mobile convergence had been a recognized factor in

351-435: Is also considered as a wireless backhaul technology for 2G , 3G , and 4G networks in both developed and developing nations. In North America, backhaul for urban operations is typically provided via one or more copper wire line connections, whereas remote cellular operations are sometimes backhauled via satellite. In other regions, urban and rural backhaul is usually provided by microwave links . (The exception to this

390-406: Is done automatically then the practical deployment should avoid high interference and multipath environments. The reason for which is obviously that too much interference causes the network to function poorly and can also misrepresent the capability of the network. The system is complex to deploy as it is necessary to track not only the signal strength and CINR (as in systems like GSM ) but also how

429-607: Is more similar to Wi-Fi than to other 3G cellular technologies. The WiMAX Forum website provides a list of certified devices. However, this is not a complete list of devices available as certified modules are embedded into laptops, MIDs ( Mobile Internet devices ), and other private labeled devices. WiMAX gateway devices are available as both indoor and outdoor versions from manufacturers including Vecima Networks , Alvarion , Airspan , ZyXEL , Huawei , and Motorola . The list of WiMAX networks and WiMAX Forum provide more links to specific vendors, products and installations. Many of

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468-450: Is to move to the later standard (e.g., Fixed WiMAX to Mobile WiMAX). The original version of the standard on which WiMAX is based ( IEEE 802.16 ) specified a physical layer operating in the 10 to 66 GHz range. 802.16a, updated in 2004 to 802.16-2004, added specifications for the 2 to 11 GHz range. 802.16-2004 was updated by 802.16e-2005 in 2005 and uses scalable orthogonal frequency-division multiple access (SOFDMA), as opposed to

507-502: Is where the network is operated by an incumbent with ready access to the copper network.) WiMAX has more substantial backhaul bandwidth requirements than legacy cellular applications. Consequently, the use of wireless microwave backhaul is on the rise in North America and existing microwave backhaul links in all regions are being upgraded. Capacities of between 34 Mbit/s and 1 Gbit/s are routinely being deployed with latencies in

546-567: The IEEE 802.16 family of wireless-networks standards ratified by the WiMAX Forum. (Similarly, Wi-Fi refers to interoperable implementations of the IEEE 802.11 Wireless LAN standards certified by the Wi-Fi Alliance .) WiMAX Forum certification allows vendors to sell fixed or mobile products as WiMAX certified, thus ensuring a level of interoperability with other certified products, as long as they fit

585-521: The IMT-2000 set of standards. This enables spectrum owners (specifically in the 2.5–2.69 GHz band at this stage) to use WiMAX equipment in any country that recognizes the IMT-2000. WiMAX cannot deliver 70  Mbit/s over 50 km (31 mi). Like all wireless technologies, WiMAX can operate at higher bitrates or over longer distances but not both. Operating at the maximum range of 50 km (31 mi) increases bit error rate and thus results in

624-595: The North American region in terms of 4G broadband wireless subscribers. There were around 1.7 million pre-WiMAX and WiMAX customers in Asia – 29% of the overall market – compared to 1.4 million in the US and Canada. The WiMAX Forum has proposed an architecture that defines how a WiMAX network can be connected with an IP based core network, which is typically chosen by operators that serve as Internet Service Providers (ISP); Nevertheless,

663-473: The RF signal travels through. Modulation is chosen to be more spectrally efficient (more bits per OFDM / SOFDMA symbol). That is, when the bursts have a high signal strength and a high carrier to noise plus interference ratio (CINR), they can be more easily decoded using digital signal processing (DSP). In contrast, operating in less favorable environments for RF communication, the system automatically steps down to

702-465: The WiMAX BS provide seamless integration capabilities with other types of architectures as with packet switched Mobile Networks. The WiMAX forum proposal defines a number of components, plus some of the interconnections (or reference points) between these, labeled R1 to R5 and R8: The functional architecture can be designed into various hardware configurations rather than fixed configurations. For example,

741-551: The WiMAX Forum published three licensed spectrum profiles: 2.3 GHz, 2.5 GHz and 3.5 GHz, in an effort to drive standardisation and decrease cost. In the US, the biggest segment available was around 2.5 GHz, and is already assigned, primarily to Sprint Nextel and Clearwire . Elsewhere in the world, the most-likely bands used will be the Forum approved ones, with 2.3 GHz probably being most important in Asia. Some countries in Asia like India and Indonesia will use

780-462: The WiMAX gateways that are offered by manufactures such as these are stand-alone self-install indoor units. Such devices typically sit near the customer's window with the best signal, and provide: Indoor gateways are convenient, but radio losses mean that the subscriber may need to be significantly closer to the WiMAX base station than with professionally installed external units. Outdoor units are roughly

819-466: The WiMAX standard rather than being added on as carrier Ethernet is to Ethernet . On May 7, 2008, in the United States, Sprint Nextel , Google , Intel , Comcast , Bright House , and Time Warner announced a pooling of an average of 120 MHz of spectrum and merged with Clearwire to market the service. The new company hoped to benefit from combined services offerings and network resources as

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858-744: The WiMAX technology due to financial circumstances, instead, along with its network partner Clearwire , Sprint Nextel rolled out a 4G network having decided to shift and utilize LTE 4G technology instead. WiMAX is based upon IEEE 802.16e-2005 , approved in December 2005. It is a supplement to the IEEE Std 802.16-2004, and so the actual standard is 802.16-2004 as amended by 802.16e-2005. Thus, these specifications need to be considered together. IEEE 802.16e-2005 improves upon IEEE 802.16-2004 by: SOFDMA (used in 802.16e-2005) and OFDM256 (802.16d) are not compatible thus equipment will have to be replaced if an operator

897-401: The architecture is flexible enough to allow remote/mobile stations of varying scale and functionality and Base Stations of varying size – e.g. femto, pico, and mini BS as well as macros. WiMAX 2.1 and above can be integrated with a LTE TDD network and perform handovers from/to LTE TDD. WiMAX 3 expands the integration to 5G NR . There is no uniform global licensed spectrum for WiMAX, however

936-424: The available frequencies will be dynamically assigned (resulting in dynamic changes to the available bandwidth.) This could lead to cluttered frequencies with slow response times or lost frames. As a result, the system has to be initially designed in consensus with the base station product team to accurately project frequency use, interference, and general product functionality. The Asia-Pacific region has surpassed

975-830: The first WiMAX enabled mobile phone , the Max 4G , on November 12, 2008. The device was only available to certain markets in Russia on the Yota network until 2010. HTC and Sprint Nextel released the second WiMAX enabled mobile phone, the HTC Evo 4G , March 23, 2010 at the CTIA conference in Las Vegas. The device, made available on June 4, 2010, is capable of both EV-DO(3G) and WiMAX(pre-4G) as well as simultaneous data & voice sessions. Sprint Nextel announced at CES 2012 that it will no longer be offering devices using

1014-474: The fixed orthogonal frequency-division multiplexing (OFDM) version with 256 sub-carriers (of which 200 are used) in 802.16d. More advanced versions, including 802.16e, also bring multiple antenna support through MIMO . (See WiMAX MIMO ) This brings potential benefits in terms of coverage, self installation, power consumption, frequency re-use and bandwidth efficiency. WiMax is the most energy-efficient pre-4G technique among LTE and HSPA+ . The WiMAX MAC uses

1053-440: The industry, prior attempts to form partnerships among wireless and cable companies had generally failed to lead to significant benefits for the participants. Other analysts at IDC favored the deal, pointing out that as wireless progresses to higher bandwidth, it inevitably competes more directly with cable, DSL and fiber, inspiring competitors into collaboration. Also, as wireless broadband networks grow denser and usage habits shift,

1092-600: The mobile profiles are TDD only. The fixed profiles have channel sizes of 3.5 MHz, 5 MHz, 7 MHz and 10 MHz. The mobile profiles are 5 MHz, 8.75 MHz and 10 MHz. (Note: the 802.16 standard allows a far wider variety of channels, but only the above subsets are supported as WiMAX profiles.) Since October 2007, the Radio communication Sector of the International Telecommunication Union (ITU-R) has decided to include WiMAX technology in

1131-667: The need for increased backhaul and media services accelerate, therefore the opportunity to leverage high bandwidth assets was expected to increase. The Aeronautical Mobile Airport Communication System (AeroMACS) is a wireless broadband network for the airport surface intended to link the control tower, aircraft, and fixed assets. In 2007, AeroMACS obtained a worldwide frequency allocation in the 5 GHz aviation band. As of 2018, there were 25 AeroMACS deployments in 8 countries, with at least another 25 deployments planned. IEEE 802.16REVd and IEEE 802.16e standards support both time-division duplexing and frequency-division duplexing as well as

1170-496: The next biggest to AT&T. Both of these companies stated their intention of supporting LTE , a technology which competes directly with WiMAX. EU commissioner Viviane Reding has suggested re-allocation of 500–800 MHz spectrum for wireless communication, including WiMAX. WiMAX profiles define channel size, TDD/FDD and other necessary attributes in order to have interoperating products. The current fixed profiles are defined for both TDD and FDD profiles. At this point, all of

1209-447: The order of 1 ms. In many cases, operators are aggregating sites using wireless technology and then presenting traffic on to fiber networks where convenient. WiMAX in this application competes with microwave radio , E-line and simple extension of the fiber network itself. WiMAX directly supports the technologies that make triple-play service offerings possible (such as quality of service and multicast ). These are inherent to

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1248-399: The relatively low costs associated with the deployment of a WiMAX network (in comparison with 3G , HSDPA , xDSL , HFC or FTTx ), it is now economically viable to provide last-mile broadband Internet access in remote locations. Mobile WiMAX was a replacement candidate for cellular phone technologies such as GSM and CDMA , or can be used as an overlay to increase capacity. Fixed WiMAX

1287-472: The same profile. The original IEEE 802.16 standard (now called "Fixed WiMAX") was published in 2001. WiMAX adopted some of its technology from WiBro , a service marketed in Korea. Mobile WiMAX (originally based on 802.16e-2005) is the revision that was deployed in many countries and is the basis for future revisions such as 802.16m-2011. WiMAX was sometimes referred to as "Wi-Fi on steroids" and can be used for

1326-423: The scheduling algorithm can also be more bandwidth efficient. The scheduling algorithm also allows the base station to control QoS parameters by balancing the time-slot assignments among the application needs of the subscriber station. As a standard intended to satisfy needs of next-generation data networks ( 4G ), WiMAX is distinguished by its dynamic burst algorithm modulation adaptive to the physical environment

1365-606: The size of a laptop PC, and their installation is comparable to the installation of a residential satellite dish . A higher- gain directional outdoor unit will generally result in greatly increased range and throughput but with the obvious loss of practical mobility of the unit. USB can provide connectivity to a WiMAX network through a dongle . Generally these devices are connected to a notebook or net book computer. Dongles typically have omnidirectional antennas which are of lower gain compared to other devices. As such these devices are best used in areas of good coverage. HTC announced

1404-458: The use of the most robust burst setting; that is, the profile with the largest MAC frame allocation trade-off requiring more symbols (a larger portion of the MAC frame) to be allocated in transmitting a given amount of data than if the client were closer to the base station. The client's MAC frame and their individual burst profiles are defined as well as the specific time allocation. However, even if this

1443-560: Was 25900 rubles (about 816 US dollars or € 580 (based on the exchange rate at that time)), according to Yota 's official website WiMAX The WiMAX Forum was formed in June 2001 to promote conformity and interoperability, including the definition of system profiles for commercial vendors. The forum describes WiMAX as "a standards-based technology enabling the delivery of last mile wireless broadband access as an alternative to cable and DSL ". IEEE 802.16m or WirelessMAN-Advanced

1482-646: Was a candidate for 4G , in competition with the LTE Advanced standard. WiMAX was initially designed to provide 30 to 40 megabit-per-second data rates, with the 2011 update providing up to 1 Gbit/s for fixed stations. WiMAX release 2.1, popularly branded as WiMAX 2+ , is a backwards-compatible transition from previous WiMAX generations. It is compatible and interoperable with TD-LTE . Newer versions, still backward compatible, include WiMAX release 2.2 (2014) and WiMAX release 3 (2021, adds interoperation with 5G NR ). WiMAX refers to interoperable implementations of

1521-604: Was only offered for the Russian market, specifically for the Yota network which was operated in Moscow , St. Petersburg , Ufa , Sochi and Krasnodar . The phone was expected to be released in April 2009 in the UK . The phone uses a widescreen WVGA 480x800 display. and is marketed as an entertainment phone. It is also capable of VoIP communication over the WiMAX network. Recommended retail price

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