TELECOM EQUIPMENTS
Telecommunications equipment for wireline, wireless and home networks, today announced that a Canadian regional wireless service provider, SaskTel, has successfully deployed Westell's new Distributed Antenna System (DAS) Interface Panels in its network. SaskTel is installing the 1900 model of the Westell DAS Interface Panel. This model is only one Rack-Unit (1RU) in height, making it a significant space saver, while covering the full Personal Communication Service (PCS) band.
Since installing the Westell panels, SaskTel has been able to significantly improve the network performance and the operational efficiency of the associated Distributed Antenna System. The Westell panels are installed between the base transceiver station (BTS) and the head end of the DAS, providing proper power levels for the downstream DAS equipment. The Westell 1900 DAS Interface Panel enables SaskTel to monitor and adjust both the "transmit" and "receive" power levels without disconnecting from the BTS or the DAS head end, keeping the DAS consistently up and running at required service levels.
"The Westell DAS panels were very simple to install and have measurably improved the performance of our DAS system," said Daryl Godfrey, Chief Technology Officer at SaskTel. "At a 1RU height, this panel design is clean and compact, which is critical since equipment space is at a premium in most DAS installations. Additionally, these panels are providing very low PIM levels and a larger range of adjustable attenuation - 0 to 50dB - than we had with our previous solution." PIM, or passive intermodulation distortion, must be low to ensure minimal interference and maximum performance of the BTS.
Since installing the Westell panels, SaskTel has been able to significantly improve the network performance and the operational efficiency of the associated Distributed Antenna System. The Westell panels are installed between the base transceiver station (BTS) and the head end of the DAS, providing proper power levels for the downstream DAS equipment. The Westell 1900 DAS Interface Panel enables SaskTel to monitor and adjust both the "transmit" and "receive" power levels without disconnecting from the BTS or the DAS head end, keeping the DAS consistently up and running at required service levels.
"The Westell DAS panels were very simple to install and have measurably improved the performance of our DAS system," said Daryl Godfrey, Chief Technology Officer at SaskTel. "At a 1RU height, this panel design is clean and compact, which is critical since equipment space is at a premium in most DAS installations. Additionally, these panels are providing very low PIM levels and a larger range of adjustable attenuation - 0 to 50dB - than we had with our previous solution." PIM, or passive intermodulation distortion, must be low to ensure minimal interference and maximum performance of the BTS.
The Westell DAS Interface Panels are capable of handling up to 80 watts of input power into a single port from the BTS, and because they are environmentally hardened - with an operating range of -40 to +65°C - they may be used in both indoor and outdoor DAS installations.
Distributed Antenna Systems are increasingly being used by wireless service providers to create a small cell infrastructure that relieves the burden on the macro cellular network. Common deployment venues include stadiums, convention centers, hospitals and college campuses where smartphone use is particularly concentrated.
Distributed Antenna Systems are increasingly being used by wireless service providers to create a small cell infrastructure that relieves the burden on the macro cellular network. Common deployment venues include stadiums, convention centers, hospitals and college campuses where smartphone use is particularly concentrated.
Why choose the Zinwave 3000 Distributed Antenna System (DAS)?
Zinwave's unique, patented 3000 Wideband Distributed Antenna System removes many of the traditional issues and considerations associated with delivering multiple RF services in buildings. It provides simultaneous support for any number or combination of cellular and other wireless services, enabling the addition of new services on demand without the need for costly and disruptive upgrades.
Unique Technology Expertise.
Zinwave's unique, patented 3000 Wideband Distributed Antenna System removes many of the traditional issues and considerations associated with delivering multiple RF services in buildings. It provides simultaneous support for any number or combination of cellular and other wireless services, enabling the addition of new services on demand without the need for costly and disruptive upgrades.
Unique Technology Expertise.
With patented technologies drawn from world-leading research groups at Cambridge University and University College London, Zinwave is the only company today that can utilise the full capability of existing multi-mode fibre (MMF) to propagate wideband wireless signals.
Zinwave's unique Active Wideband Distributed Antenna System (DAS) technology provides a unified wireless indoor coverage solution, enhancing wireless performance and eliminating the blindspots caused by structural interference. By transporting a wideband frequency range throughout the system without altering the signal Zinwave has the only active DAS system to offer true wideband over long distances using multi-mode fibre (MMF) or single-mode fibre (SMF).
Without Zinwave's technology, such coverage can only be achieved by expensive recabling of buildings using single-mode optical fibre, or implementing multiple in-building systems each with restricted spectrum or application capability.
In essence, a DAS can connect to a variety of wireless services and then
rebroadcast those signals throughout the areas in which the DAS is
installed. The sources can include cellular service from multiple
wireless carriers, public safety radio frequencies, and WiFi. If your
campus has a medical clinic or hospital, the special medical wireless
systems it uses also can be supported.
To better grasp how a DAS operates, it helps to know some of the methods
by which wireless signals are propagated. Nearly all of us know what a
cell tower looks like; well, each of those towers carries antennas for
one or more macro cells (multiple carriers when there are “layers” of
antenna arrays)
. But a microcell covering a limited area may have its antenna or antennas placed on a tower or pole, or mounted on or in a building. Wireless carriers use microcells to add capacity in areas with a high density of mobile wireless device users. A picocell has an even smaller coverage area. A WiFi access point can be thought of as one type of picocell. In a DAS setup, any or all of these technologies may come into play.
There are also multiple alternative methods for obtaining the necessary signals from the carriers, including T1s or fiber cabling directly connected to wireless carriers' networks. However, the wireless signal from an existing wireless tower (macro cell) is one of the most common sources of obtaining the service “injection.” The signal of a public safety radio system (e.g., from local or campus police) also would be taken from the air via the nearest repeater for that system.
There are also multiple alternative methods for obtaining the necessary signals from the carriers, including T1s or fiber cabling directly connected to wireless carriers' networks. However, the wireless signal from an existing wireless tower (macro cell) is one of the most common sources of obtaining the service “injection.” The signal of a public safety radio system (e.g., from local or campus police) also would be taken from the air via the nearest repeater for that system.
0 comments:
Post a Comment