AIR DIGITAL WIRELESS TRIPLE PLAY NETWORK

Air is a unique integrated wireless Triple play point to multipoint system solution on the telecommunication market, providing microwave radio access to all the residential and business users in a radius of over 15km from every base station. An operator (CATV, ISP, incumbent, others) is able to provide all services, users are looking for today – digital TV broadcast (more than 100 digital TV programs in DVD or HD quality at the same time), Broadband Internet, VoIP telephony, FAX services, Pay per View, Video on Demand, Telemetry, etc.

Standards used in the Air system are the same as in bidirectional digital cable TV networks – DVB-T and HDTV for TV broadcast and DOCSIS/EuroDOCSIS for IP transfer (including VoIP). The downstream distributes TV and RA programs and IP traffic as in standard CATV network (the broadcast is similar to Satellite broadcast), upstream consist of IP traffic only (including VoIP) in the direction from the end user to the Main station. The same system can be used in a standard coaxial, analog or digital cable TV network or in a combined network (wireless and cable), providing both – TV and IP access over wireless and coaxial cable infrastructure. The Air system is suitable to expand the network and service portfolio of ISPs, mobile operators, incumbents.

By implementing the AIR system, an operator is able to provide the most advanced triple play services to his customer base, by having low customer acquisition cost, Fast Deployment and Immediate start of Revenues resulting in Return on Investment typically in 18 to 30 month.

air TV TV services are provided in DVD or HD quality and offer additional services and revenue opportunities.[+] Digital TV picture in DVD or HD quality[+] Almost unlimited number of TV and RA

programs[+] Channel coding providing piracy

protection[+] Pay per view [+] Possibility of remote channel

individualization for every customer [+] Possibility of remote control for each

customer (switching services on and off)

air IP Broadband internet access with high transmission speed capability rates, asymmetrical and symmetrical rates.[+] Rates according to DOCSIS/

EuroDOCSIS standard 3.0 average 160 Mbps downstream and average 120 Mbps upstream

[+] Unlimited access[+] DOCSIS/EuroDOCSIS compliant[+] Compliant with all IP services

air TELWith IP Telephony AIR gives the operator another opportunity to make additional revenue with telephony services.[+] IP telephony [+] ISDN quality of service and same

functionality[+] Possibility of using analog or IP phones[+] FAX services

AIR DIGITAL WIRELESS TRIPLE PLAY NETWORK

Additional AIR services

Service Offers – Exemplary Value Added Services Offers

Pay-per-View

Technology[+] DVB-T point-to-multipoint broadcasting

Application[+] Premium content, e.g. blockbusters,

adult entertainment

[+] Electronic billboards

Video on Demand

Technology[+] IP streaming

Application[+] TV archive[+] Personal video recording

Video Surveillance

Technology[+] IP streaming or DVB-T broadcast Application[+] Site monitoring[+] Road/Traffic monitoring

Telemetry

Technology[+] IP streaming

Application[+] Measuring the audience of TV channels[+] Site monitoring

System overview

AIR DIGITAL WIRELESS TRIPLE PLAY NETWORK

Network Management

Server

The Network Management Server allows the operator to do Remote Supervision and Control of all the Network Elements. The server generates Alarms in case of failures and errors. The network management server also allows Remote configuration and Administration. These features are all protected by strong encryption.

The MUX digital multiplex equipment multiplexes 4 to maximum 9 (depending on the compression rate) TV and RA programs in digital MPEG2 format, received through an ASI or SPI interface. The MUX adds to ASI or SPI stream an additional data channel received from the IP DVB inserter (channel coding information).

AIR Multiplexer

Main station

AIR DVB-T modulatorAIR Wireless internet

transport system

The Wireless internet transport system enables the seamless transport and frequency conversion from standard DOCSIS/EuroDOCSIS CMTS to the base station and then to the end user, and also enables the seamless transport and conversion of frequency from the end user to the base station and then to the standard DOCSIS/EuroDOCSIS CMTS.

The DVB-T modulator provides Forward Error Correction, modulates the digital MPEG2 signal in QPSK, QAM 16 or QAM 64, according to the DVB-T standard in the UHF frequency band; C2 to C69 (471 to 862 MHz). The channel bandwidth is 8 MHz (for 4 to maximum 9 video/audio signals).The modulator has a possibility of 4 independent outputs; each of them can use a separate frequency – possibility of distributing the same TV and RA programs in DVB-T format to 4 different operators.

The AIR CODING system (SCRAMBLER) provides the operator with the possibility of preventing unauthorized access to the air distribution services and provides better data transmission protection. AIR coding system offers flexibility of providing individual TV and RA program scheme to each separate user in the system. The AIR coding system is connected via the AIR IP inserter to the RF transport stream.

AIR CODING systemAIR IF controller

Controls the whole combined signal on the interfrequency and amplifies it before transmitting the signal to the base station.

DVB control server

The User WEB, administration and control server is connected to the user data base and allows the end user real-time access from a web browser in order to get certain information or access to certain services (Pay per View, Video on Demand, etc.) The server also runs the user database which allows user manipulation to the operator (time limited use of certain channel, Video on Demand, billing etc.).

The DVB Control server generates a code for each TV and RA channel, and checks the database on the user database server, where it is specified to which TV and RA programs a user has access to. The control server is connected to the Air CODING system which generates the code to an ASI interface.

User WEB, administration

and control server

AIR DIGITAL WIRELESS TRIPLE PLAY NETWORK

Source of TV and RA programs in the AIR system are digital and/or analog satellite/terrestrial/cable TV and RA programs, received through satellite and terrestrial antennas or through cable. The satellite demodulator converts the received signal on the 1. Interfrequency to ASI output (in the case of digital receiver) or to analog signal (audio and video) in the case of analog receiver. In the case of an analog receiver, video and audio are then digitalized through MPEG2 encoders (ASI output provides the MPEG2 format directly). The MPEG 2 encoder can define a higher compression rate if needed. Signals received in digital format can not be additionally compressed.

AIR Satellite digital

and analog TV and RA

demodulator (receiver)

AIR IP DVB inserter

AIR IP inserter inserts a data stream of IP into the RF transport stream and acts like a translator between IP and RF traffic. In the IP data stream are include a code from the AIR coding system, EPG (electronic program guide), other information.

The multipoint antenna enables bidirectional communication between the main station and end-users. DOWNSTREAMThe multipoint transmitter receives the signal from the AIR main station on the interfrequency. The signal is then converted to high TX frequency (Downstream transmission frequency) filtered and amplified. The bandwidth of the frequency is the same as the bandwidth received from main station. The Downstream transmission frequency is then transmitted through the antenna with a typical gain of 10 dB (depending on the frequency and antenna system – Omni directional, sectorized).

UPSTREAMThe multipoint receiver receives and down converts the high frequency signal (upstream receiving frequency), filters and amplifies it and then sends it to the AIR Wireless internet transport system which is connected to a CMTS. If needed, the signal can be also transmitted from the base station to the CMTS through coaxial cable network, fiber optical backbone or microwave radio link.

Base station

Base station

The Point to Point radio link provides an exclusive bidirectional wireless connection between the main and base station (if they are in different locations) and feeds the multipoint antennas at the remote base stations. The Point to Point connection transports the same frequency bandwidth, produced at the Main and base station. The microwave connection transports the whole transmitted and received uncompressed frequency.

P2P link

Microwave radio connection for remote base stations

The end user equipment includes an antenna with the AIR transceiver, which allows bidirectional communication with the base station, the AIR settop box (Dolby digital sound) and a standard cable modem for IP traffic and an optional IP or analog telephone(connected to SIP server interface).

User unit outdoor/indoor

User outdoor/indoor unitREMARK : Multiple users can be connected to one AIR transceiver

AIR DIGITAL WIRELESS TRIPLE PLAY NETWORK

User outdoor/indoor unit

Outdoor unit DOWNSTREAMThe AIR transceiver receives the downstream transmission frequency which transports TV and IP (data and voice) content through the dish antenna and filters the signal before down converting it to a UHF signal. The UHF signal is then transmitted through a coaxial cable to a splitter which splits the signal to a cable modem (for IP traffic) and to the AIR receiver box (for TV and RA service). (Multiple AIR settop boxes and modems can be connected to the same outdoor unit)

UPSTREAMThe AIR transceiver receives a DOCSIS/EuroDOCSIS signal, containing upstream IP content, from the cable modem, filters and amplifies it. The signal is then converted to the upstream receiving frequency and transmitted with a typical RF power of 10 dBm (with automatic gain control according to the CMTS instructions) to the antenna and then transmitted through the antenna with a gain of 25 dB (heavily depending on frequency and antenna size). Signal modulation is in accordance with the DOCSIS/EuroDOCSIS standard, the RF power is controlled by the CMTS. Maximum broadband bandwidth per user complies with the DOCSIS/EuroDOCSIS standard. The unit is compatible with DOCSIS/EuroDOCSIS 1.0, 1.1, 2.0, 3.0 and future DOCSIS/EuroDOCSIS standards

REMARK: In case of TV and RA services only, AIR receiver (simpler version) can be used.

The AIR settop box converts the UHF signal on the transport stream SPI, descrambles the signal and then decodes the MPEG2 format to an analog audio/video signal compatible with a standard TV set.

Indoor units

The system uses a standard DOCSIS/EuroDOCSIS cable modem (interfaces and number of them vary on used model and type of modem).

The system is fully compatible with any IP phone with an Ethernet interface or with any analog phone and also supports Fax applications.

Cable modem IP Phone or analog phone

Notes

Globtel d.o.o. Panonska ulica 30SI-2000 Maribor, SloveniaTel.: +386 (0)2 620 20 00Fax.: +386 (0)2 620 20 01info@air-tv.netwww.air-tv.net