HomeMy WebLinkAboutRS_RF Justification Letter_Cedar River COW_Verizon_180607_v2.pdfVSE' ZMwireless
Network Engineering Verizon Wireless
3245 1581hAve SE
MIS 231
Bellevue, WA 98008
Temp Site Cedar River COW — Radio Frequency (RF) Documentation
Overview:
Verizon Wireless strives to provide excellent wireless service with a network of cell sites that allows our customers to
reliably place and receive mobile phone calls. In this particular case, we are trying to remedy capacity and coverage
challenges in Renton as quickly as possible. Specifically in the Downtown and Landing areas in Rentin so that customers
will receive better service and faster data speeds.
Construction of the proposed temporary site entails installing three (3) antennas, auxiliary equipment, and the supporting
base station equipment on a Cell On Wheels temporary structure. This site will be in use until permanent sites in the
surrounding area can be identified and constructed. In -building penetration, coverage challenges, and continued growth
in our customer base, and call traffic in this area has dictated the need for the proposed site and the increasingly poor
service in the area due to capacity restrictions has prompted Verizon to install a temporary site which will be much faster
than a permanent site to provide the best service as soon as possible.
Capacity:
An additional function of some wireless sites, such as the subject Temp Site Cedar River COW site, is to provide
additional capacity in an area. The capacity of wireless networks is limited by the spectrum availability, the number of
available antennas, and the radios and amplifiers associated with those antennas and spectrum. When a mobile user
attempts to make a call on a wireless network where capacity is limited by these factors, the resulting delay and busy
signal can be very frustrating. To remedy capacity issues, additional sites and or spectrum, which are directly correlated to
the number of antennas at the site as outlined below, are added to an area to provide additional calling capacity for
Verizon Wireless customers.
There are some Verizon Wireless sites in the immediate vicinity that are at or near capacity. To remedy
the reduced capacity, the subject site is being proposed so that calls at surrounding sites can be "offloaded" to the
proposed site and thus creating more wireless capacity for the vicinity. In order for this capacity off-loading to be
successful, precise placement of the new antennas is necessary. If the site is too far away, the signal will not have
adequate strength to capture calls from the impacted existing sites or cells. Similarly, sites that are too close together will
not provide the needed capacity relief to the existing sites. Thus for new site/cell capacity solutions to work, site
placement and height are critical factors and must be chosen carefully.
Coverage:
In order to provide adequate Cellular service, which Verizon Wireless defines as —85 dBm or better, the antenna height
and site location need to provide a line of sight to the roads, offices, and homes where our customers work and reside.
Three (3) antennas are being proposed, in order to provide the necessary radio frequencies supporting all of Verizon
Wireless voice and data services that are possible to install in this temporary style site. The proposed antenna heights of
is the minimum height needed for the effective functioning of the proposed antennas as well as providing the adequate
height needed for the Microwave Dish that will provide backhaul for the site to connect it to the existing network. The
antenna sizes and the terrain and foliage in the vicinity make this the minimum height necessary to provide adequate
levels of coverage and usage offloading in the context of surrounding Verizon Wireless sites.
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Design:
The Temp Site Cedar River COW will utilize our PCS 1900 MHz, 700 MHz, and 2100 MHz frequencies. It will basically be
three wireless facilities located in the same physical equipment area. For the Temp Site Cedar River COW each
frequency set will use LTE 4G. Temp Site Cedar River COW has been designed with three (3) antennas. This is the
minimum antenna requirement for this three sector site to get the best possible service from each of our transmit
frequencies and add the needed service coverage and capacity to the area.
Summary:
In summary, the proposed site would meet the RF coverage objective of the subject site. The height of the three (3)
antenna array is the minimum required for the effective functioning of the proposed minor communication utility.
Sincerely,
Kstal Ta Iw,/
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Verizon Wireless