Under the Telemedia portion, Airtel gives broadband web access through DSL, web rented lines and MPLS (multiprotocol name exchanging) arrangements, and also IPTV and settled line telephone utilities. Until 18 September 2004, Bharti gave settled line communication and broadband administrations under the Touchtel mark. Bharti currently gives all telecom administrations including settled line benefits under the normal brand airtel. As of September 2012, Airtel gives Telemedia administrations to 3.3 million clients in 87 urban areas. As on 30 November 2012, Airtel had 1.39 million broadband supporters.
Airtel Broadband gives broadband and IPTV administrations. Airtel gives both topped and in addition boundless download plans. In any case, Airtel’s boundless plans are liable to free utilization strategy (FUP), which decreases speed after the client crosses a specific information use constrain. In a large portion of the plans, Airtel gives just 512kbit/s past FUP, which is lower than the TRAI determined utmost of a large portion of the endorser’s unique speed. The most extreme speed accessible for home clients under the new V-Fiber program is 100MBit/s and with DSL is 16Mbit/s.
In May 2012, Airtel Broadband and some other Indian ISPs briefly blocked document sharing sites, for example, vimeo.com, megavideo.com, and thepiratebay.se, without giving any lawful data to clients. Airtel will dispatch its Voice over LTE calling administration in Mumbai and Kolkata.In June 2011 the Economic Times detailed that Telemedia Business was converged with Mobile, DTH and Business in three separate parts individually.
1.1.6 Digital television
The Digital TV business gives Direct-to-Home (DTH) TV benefits crosswise over India under the brand name Airtel advanced TV. It began benefits on 9 October 2008 and had around 7.9 million clients toward the finish of December 2012.
1.1.7 Mobile data service
Administrations under versatile information incorporate BlackBerry benefits; a web-empowered portable email arrangement chipping away at ‘push innovation’; a USB modem that aides in getting moment access to Internet and corporate applications; Airtel Data Card, which empowers getting to the web whenever; Easy Mail, a stage that gives access to individual/corporate messages autonomous of handset working framework; and application benefits that abbreviate the lines at the charging segment, off-stack the weight on the charging staff and convey accommodation to the client.
Airtel Business comprises to a great extent of six items: cloud and oversaw administrations, computerized signage, NLD/ILD availability (VSAT/MPLS/IPLC and Ethernet items), Wi-Fi dongles, voice arrangements (like toll free numbers, TracMate, and robotized media perusing) and conferencing arrangements (VoIP, sound, video, and web conferencing) serving Industry verticals like BFSI, IT/ITeS, assembling, accommodation and government.
Airtel Business, the B2B arm of Bharti Airtel, has revealed a first of its kind devoted computerized stage to serve the developing network, correspondence and joint effort prerequisites of rising organizations, including SMEs and new companies. The advanced stage will offer answers for developing ventures to empower simplicity of business and quicker time to advertise.
1.1.9 Android-based tablet
Beetel Teletech Ltd., a unit of Bharti Enterprises Ltd., on 18 August 2011, propelled a ?9,999 (US$150) 7-inch tablet in India in view of Google Inc’s. Android working framework. The offering is proposed to profit by the normal interest for modest processing gadgets on the planet’s quickest developing and second-biggest cell phone showcase.
Each CDMA Base Station (BS) transmits a pilot code to help the handset with demodulation and to measure BS strength. The pilot code is a pseudo random sequence, similar for every BS, but is uniquely recognized by its PN sequence offset for each base station. The pilot channel conveys no information yet it is utilized by the subscriber unit to acquire the system and assist in the process of soft handoffs, synchronization and channel estimation. A different pilot channel is transmitted for each sector of the cell site. The detection of Base stations with PN sequence: PN sequence with an offset in time is nearly orthogonal to the original PN sequence. This is the principle that allows a CDMA mobile to distinguish between multiple BSs that transmit on the same frequency. This is also the same principle that PN scanners use to scan for offsets of the pilot PN code. Each offset detected is a different time shift of the PN code and is the result of a direct transmission path or a multipath.
Pilot pollution is alluded to a circumstance where a cell phone gets several pilot signals with strong reception levels yet none of them is sufficiently overwhelming that the cell phone can track it. This is nothing but poor reception due to signal interference. 1 Pilot coverage from neighboring Base stations should overlap in fringe areas to accommodate hand-off. However, the overlap should not have a large number of BS in the same overlap. Each Base station that has significant power in the overlap area will increase Io, reduce Ec/Io & capacity or quality will suffer. This phenomenon is pilot pollution.
Thus, when the number of strong cells surpasses the active set size, there is “pilot pollution” in the area. Typically, the active set size is 3, so if there are more than 3 strong cells then there is pilot pollution. Strong cells are the pilots within the handover window size from the strongest cell. Typical handover window size is between 4 to 6dB. For instance, if there are more than 2 cells (besides the strongest cell) within 4dB of the strongest cell then there is pilot pollution. 2
Pilot Pollution occurs in two modes:
1) Idle or cell_FACH mode, phenomenon of the pilot pollution is that a UE cannot firmly camp on a cell at one location in view of getting numerous pilot channels with comparable quality.
2) In cell_DCH mode, phenomenon of the pilot pollution is that a UE at one location frequently changes its active set cells because of receiving many pilot channels with similar quality.
Recently, researchers figured out other pilot pollution interference sources like(i) cell sites equipped with high elevation antennas, which result in an increase of the radio frequency (RF) coverage footprints beyond the normal range, (ii) existence of dense foliated environments, (iii) weather fluctuations and (iv) opposition of RF propagation with water areas.
Thus, the aim is to find out the polluted areas using areisoGEO and focus on their enhancement.
1.2.2 Small Cell Planning
Small cells can be explained as any cell serving mobile traf?c which is not a conventional macrocell. The Small Cell Forum provides the following de?nition:
‘Small cells’ is an umbrella term for operator-controlled, low-powered radio access nodes, including those that operate in licensed spectrum and unlicensed carrier-grade Wi-Fi. Small cells typically have a range from 10 meters to several hundred meters (mostly, 100 meters).
Small cells are not a new concept, but over the last few years they have entered a new phase of growth and development, with a standards-based ecosystem, greater acceptance by operators and tens of millions deployed. Small cells are usually fully ?edged sources of both coverage and capacity – essentially mini base stations. Small cells incorporate signi?cant intelligence to support simple incorporation into the operator network. They support self-optimization with little or no attention by the operator and with ‘zero touch’ installation on the part of the end user. Speci?c features vary by manufacturer, but they typically incorporate an ability to monitor the surrounding network and adjust themselves to provide good coverage over the desired area while avoiding interference beyond. While these processes are conducted autonomously, the small cell remains always under the control of the network operator via a centralized management system. 3 Although small cells may be backhauled over the public Internet, they are secured via mutual authentication between the operator network and the cell, with all communication taking place over a secure, encrypted IPsec tunnel.The cell reports its location to the network and is only granted permission to transmit once the network checks it is authorized to do so, thereby meeting regulatory requirements on spectrum, emergency calls, etc. Small cells deployment is subject to service delivery requirements, as well as to the actual constraints specific to the targeted areas. For a good uniformity of service, in populated areas where presence of buildings is the main reason for significant radio signal attenuation, small cells may need to be closely spaced, e.g. within a couple of hundred meters from each other. Naturally, the performance of small cells is highly dependent on the environment specific characteristics, such as materials used for building construction and their specific propagation properties. 4
In this project we use several tools to identify areas where increase in capacity and coverage is required and then planning small cell backhaul networks.