Description of Experiment

0218-EX-PL-2002 Text Documents

Cisco Systems

2002-10-18ELS_58496

Cisco Point-to-Multipoint Broadband Wireless Alpha Trial Technical Summary ENG-82012

TABLE OF CONTENTS
1. PURPOSE................................................................................................................................................3

2. TECHNICAL DETAILS........................................................................................................................4
2.1. PROPOSED DEVELOPMENTAL SITES ...................................................................................................4
2.2. PROPOSED OPERATING PARAMETERS ................................................................................................4
3. EXHIBITS ...............................................................................................................................................7
3.1. EXHIBIT 1: SYSTEM PARAMETERS FOR THE PROPOSED DEVELOPMENTAL OPERATION .....................7
3.2. EXHIBIT 2: LOCATIONS AND ORIENTATION OF HEADEND SITES..........................................................8
3.3. EXHIBIT 3: ELEVATION VIEW ............................................................................................................9
3.4. EXHIBIT 4: ANTENNA RADIATION PATTERN .....................................................................................11

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Cisco Point-to-Multipoint Broadband Wireless Alpha Trial Technical Summary ENG-82012

1. Purpose
This document summarizes the technical parameters of the Cisco 3.5GHz point-to-multipoint broadband
wireless Alpha test network. The information contained in this document shall be used for application of an
experimental license from the FCC.

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Cisco Point-to-Multipoint Broadband Wireless Alpha Trial Technical Summary ENG-82012

2. Technical Details

2.1. Proposed Developmental Sites
There are two headend sites and multiple subscriber sites involved in this experimental operation. See
Exhibit 2. The two headend sites are installed on buildings Cisco Systems Inc.'s San Jose campus. Multiple
subscriber sites will be installed within 5-mile radius of each headend site and in the coverage area provided
by the headend antennas (see Exhibit 2). Up to 10 subscriber sites are deployed for this developmental
operation. Table 4 shows a list of headend and subscriber site locations.

2.2. Proposed Operating Parameters
Exhibit 1 is a summary of the operating parameters of the headend sites. The headend sites are deployed in
Cisco Building 14 (3625 Cisco Way, San Jose, CA95134) and Cisco Building O (10 West Tasman Drive,
San Jose, CA95134). A 90-degree beamwidth, horizontal polarized antenna was selected for the headend
site. Two sectors of coverage, each sector with two antennas for diversity reception will be installed on
Cisco Building 14. One sector of coverage with two antennas for diversity reception will be installed on
Cisco Building O headend site. Antenna orientation is shown in Exhibit 2. The specified ERP is the
maximum that will be radiated from any site.
The experimental operation will use equipment that is not type accepted because the equipment is still under
development.
Average power, rather than peak power, is the appropriate power measurement for digital transmission.
The headend transverters employed will be rated for an output power of up to 2.5 Watts (4dBW). This
power, in conjunction with a Remec AMH2000-1 headend antenna, will produce a maximum EIRP of
20.5 dBW. All transmitting antennas will be horizontally polorized and will be limited to a height less than
20 feet above the roof of each of the headend sites.
The technical parameters for the headend transmitter installation to be utilized are described in Table 1.

Table 1: Technical parameters of headend transmitter.
Item Parameter Description
1 Frequency 3475-3487 MHz
2 EIRP Not exceeding 20.5 dBW using transverter output of 2.5 Watts1
3 Transmitting antenna: Remec AMH2000-1
Gain 16±0.5dBi
Polarization Horizontal
Orientation See exhibit 1 & 2
Height to center (AGL) Not exceeding 20 feet above the roof of any building
4 Point of Communication Communicate with subscribers located within 5 miles radius
5 Type of service Fixed
6 Location of Transverter See exhibit 1 and 2
7 Control Each station will be under the control of the applicant
8 FAA Concerns No antenna will be installed that will increase the height of any man-
made structure by more than 20 feet
9 Beamwidth The 3dB beamwidth of each antenna will be 90 degrees
10 Emission 6MHz, 3MHz and 1.5MHz.

1
Average power, rather than peak power, is the appropriate power measurement for digital transmission.
The transmitters are actually "transceivers", which are a combination of receiver and transmitter,
manufactured by Cisco Systems, Inc.

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Cisco Point-to-Multipoint Broadband Wireless Alpha Trial Technical Summary ENG-82012

Item Parameter Description
11 Modulation Density OFDM
Two classes of subscriber units are used in this developmental operation: standard power and high power.
The standard power subscriber unit is rated for a maximum transmit power of 0.63 Watt (-2dBW) in
1.5MHz bandwidth, 0.32 Watt (-5dBW) in 3MHz bandwidth and 0.16 Watt (-8dBW) in 6MHz bandwidth.
The standard power subscriber unit operates with an integrated antenna. The high power subscriber unit is
rated for a maximum transmit power of 3.2 Watts (5dBW) in 1.5MHz bandwidth, 3.2 Watts (5dBW) in
3MHz bandwidth and 1.6 Watts (2dBW) in 6MHz bandwidth. The high power subscriber unit operates with
an external antenna.
The standard power subscriber transverters employed will be rated for an output power of up to 0.63 Watt.
This power, in conjunction with an integrated antenna with 20.5±0.5dBi gain, will produce an EIRP of
18.5±0.5 dBW. All transmitting antennas will be horizontally polorized and will be limited to a height less
than 20 feet above the roof of each of the subscriber sites. A transportable subscriber site installed in a van
will be deployed. The antenna height of the transportable subscriber is adjustable to a maximum of 55 feet
above ground level.
The technical parameters for the standard power subscriber transmitter are described in Table 2.

Table 2: Technical parameters of standard power subscriber transmitter.
Item Parameter Description
1 Frequency 3425 – 3437 MHz
2 EIRP Not exceeding 19 dBW using transverter output of 0.63 Watts over
1.5MHz bandwidth2
3 Transmitting antenna: Integrated antenna
Gain 20.5±0.5dBi
Polarization Horizontal
Orientation Point towards serving headend site. See exhibit 1
Height to center (AGL) Not exceeding 20 feet above the roof of any building
4 Point of Communication See Exhibit 1.
5 Type of service Fixed
6 Location of Transverter See exhibit 1 and 2
7 Control Each station will be under the control of the applicant
8 FAA Concerns No antenna will be installed that will increase the height of any man-
made structure by more than 20 feet
9 Beamwidth The beamwidth of each antenna will be 14±1 degrees
10 Emission 6MHz, 3MHz and 1.5MHz
11 Modulation Density OFDM

The high power subscriber transverters employed will be rated for an output power of up to 3.2 Watts. This
power, in conjunction with an integrated antenna with TBD dBi gain, will produce an EIRP of TBD dBW.
All transmitting antennas will be horizontally polorized and will be limited to a height less than 20 feet
above the roof of each of the subscriber sites. A transportable subscriber site installed in a van will be
deployed. The antenna height of the transportable subscriber is adjustable to a maximum of 55 feet above
ground level.
The technical parameters for the high power subscriber transmitter are described in Table 3.

2
Average power, rather than peak power, is the appropriate power measurement for digital transmission.
The transmitters are actually "transceivers", which are a combination of receiver and transmitter,
manufactured by Cisco Systems, Inc.

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Cisco Point-to-Multipoint Broadband Wireless Alpha Trial Technical Summary ENG-82012

Table 3: Technical parameters of high power subscriber unit.
Item Parameter Description
1 Frequency 3400.5 to 3412.5 MHz
2 EIRP Not exceeding TBD dBW using transverter output of 3.2 Watts
(35dBm)3
3 Transmitting antenna: TBD
Gain TBD dBi
Polarization Horizontal
Orientation See exhibit 1
Height to center (AGL) Not exceeding 20 feet above the roof of any building
4 Point of Communication Point towards serving headend site. See Exhibit 1.
5 Type of service Fixed
6 Location of Transverter See exhibit 1 and 2
7 Control Each station will be under the control of the applicant
8 FAA Concerns No antenna will be installed that will increase the height of any man-
made structure by more than 20 feet
9 Beamwidth The beamwidth of each antenna will be ?? degrees
10 Emission 6MHz, 3MHz and 1.5MHz.
11 Modulation Density OFDM

Table 4 lists the proposed headend site and subscriber site locations for this developmental operation.
Table 4: Location of headend and subscriber sites.

Site Location Address Latitude Longitude
HE Building 14 3625 Cisco Way, San Jose, CA 95134 37°24'16" 121°55'58"
HE Building O 10 W. Tasman Dr. , San Jose, CA 95134 37°24'32" 121°56'43"
SU Building D 170 W. Tasman Dr. , San Jose, CA 95134 37°24'31" 121°57'07"
SU Building P 125 W. Tasman Dr. , San Jose, CA 95134 37°24'36" 121°56'54"
SU Building K 225 W. Tasman Dr. , San Jose, CA 95134 37°24'40" 121°57'05"
SU Building 8 3750 Zanker Rd. , San Jose, CA 95134 37°24'44" 121°56'04"
SU Building 9 260 E. Tasman Dr. , San Jose, CA 95134 37°24'44" 121°55'57"
SU Building 2 3800 Zanker Rd. , San Jose, CA 95134 37°24'48" 121°56'10"
SU Building I 285 W. Tasman Dr. , San Jose, CA 95134 37°24'42" 121°57'13"
SU Building H 250 W. Tasman Dr. , San Jose, CA 95134 37°24'36" 121°57'24"
SU N/A Transportable SU located up to 5 miles N/A N/A
from HE site location

3
Average power, rather than peak power, is the appropriate power measurement for digital transmission.
The transmitters are actually "transceivers", which are a combination of receiver and transmitter,
manufactured by Cisco Systems, Inc.

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Cisco Point-to-Multipoint Broadband Wireless Alpha Trial Technical Summary ENG-82012

3. Exhibits

3.1. Exhibit 1: System Parameters for the Proposed Developmental Operation
Table 5 summarizes the system parameters for the proposed developmental operation.

Table 5: HE System Parameters.
TRANSMIT SITE NAME LATITUDE LONGITUDE RECEIVE SITE GND MSL C/R AGL FT MAX ERP DBW POL
DISTANCE FT
Bldg-O 37°24'32" 121°56'43" Within 5 miles radius 60 80 20.5 H
Bldg-14 37°24'16" 121°55'58" Within 5 miles radius 30 50 20.5 H

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Cisco Point-to-Multipoint Broadband Wireless Alpha Trial Technical Summary ENG-82012

3.2. Exhibit 2: Locations and orientation of headend sites..
Headend location Antenna ID Antenna orientation Comments
Cisco Building 14 HE14-W-ANT1 297 degrees relative to magnetic north Two antennas used for
HE14-W-ANT2 297 degrees relative to magnetic north diversity reception
Cisco Building 14 HE14-E-ANT1 117 degrees relative to magnetic north Two antennas used for
HE14-E-ANT2 117 degrees relative to magnetic north diversity reception
Cisco Building O HEO-W-ANT1 332 degrees relative to magnetic north Two antennas used for
HEO-W-ANT2 332 degrees relative to magnetic north diversity reception

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Firestorm Alpha Test Plan

3.3. Exhibit 3: Elevation View
Figure 1 shows the elevation view of the headend antenna installation.

Figure 1: Elevation view of headend antenna installation.

He ade nd
ins tallation Proposed
antenna
< 20 feet

Existing building

Ground
Elevation

Figure 2 shows the elevation view of the subscriber unit antenna installation.

Figure 2: Elevation view of subscriber unit antenna installation.

Subscriber unit
installation Proposed
antenna
< 20 feet

Existing building

Ground
Elevation

Figure 3 shows the elevation view of antenna installation on the transportable subscriber unit.

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Firestorm Alpha Test Plan

Figure 3: Elevation view of antenna installation on the transportable subscriber unit.

Transportable
subscriber unit
installation

< 55 feet
Proposed
antenna

Ground
Elevation

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Firestorm Alpha Test Plan

3.4. Exhibit 4: Antenna radiation pattern
Figure 4 and Figure 5 show the azimuth and elevation radiation pattern for the headend antenna,
respectively.

Figure 4: Azimuth radiation pattern of headend antenna AMH2000-1.

Remec AMH2000-1

20

10

0

-10
Gain (dBd)

-20

-30

-40

-50
-200 -150 -100 -50 0 50 100 150 200
Azimuth (degree)

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Firestorm Alpha Test Plan

Figure 5: Elevation radiation pattern of headend antenna AMH2000-1.

AMH2000-1 Elevation pattern

20

10

0

-10
Gain (dBd)

-20

-30

-40

-50

-60

-70
-200 -150 -100 -50 0 50 100 150 200
Elevation (degree)

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Document Created: 2000-11-13 07:18:39
Document Modified: 2000-11-13 07:18:39

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