FCC ID: WYFJI43W25GUN WiMAX RF Repeater

ICS Repeater for Mobile WiMAX Mobile WiMAX ICS Repeater

<Interference Cancellation System for Mobile WiMAX 20 Watt>

2008. 11 ICS Repeater for Mobile WiMAX

[ TABLE OF CONTENTS ]

1. Operating Description ................................................................................................ 5 1.1. Down Link ................................................................................................................................. 5 1.2. Up Link ...................................................................................................................................... 6 2. ICS Application ........................................................................................................... 7 2.1. ICS Repeater Application ........................................................................................................ 7 3. System Specifications ................................................................................................ 9 3.1. Electrical Specifications .......................................................................................................... 9 3.2. Cancellation Performance ..................................................................................................... 10 3.3. Mechanical Specifications .................................................................................................... 10 3.4. Environmental Specifications ............................................................................................... 10 4. System Description .................................................................................................. 11 4.1. Gerneral Appearance ............................................................................................................. 11 4.2. Components of the Repeater ................................................................................................ 15 4.2.1. 4.2.2. 4.2.3. 4.2.4. 4.2.5. 4.2.6. 4.2.7. 4.2.8. 4.2.9. 4.2.10. Power Supply Unit(PSU) .............................................................................................. 15 Remote Control Unit (RCU) ......................................................................................... 16 Interference Cancellation Unit (ICU) ............................................................................ 16 Downlink Power Amplifier Unit(DL PAU) ...................................................................... 17 Uplink Power Amplifier Unit(UL PAU) ........................................................................... 18 Cavity Filter .................................................................................................................. 18 Front End Unit(FEU) .................................................................................................... 19 Arrestor ........................................................................................................................ 19 Modem ......................................................................................................................... 19 Simple Network Management Protocol board(SNMP) ................................................. 20 5. Feature & Function ................................................................................................... 21 5.1. ICS Technology ...................................................................................................................... 21 Page 2 of 55 ICS Repeater for Mobile WiMAX 5.1.1. Comparison of Analog RF repeater with ICS repeater ................................................. 21 5.1.2. ICS Technology ............................................................................................................ 22 5.1.3. Advantages of ICS ....................................................................................................... 22 5.2. Function of ICS Repeater ....................................... ! . Automatic Gain Control(AGC) ........................ ! . Gain Margin Mode ......................................... ! . Sync Demodulater ......................................... ! . Preamble QM ................................................. ! . 5.2.1. 5.2.2. 5.2.3. 5.2.4. 6. Installation ................................................................................................................. 24 6.1. Transportation of the Repeater ............................................................................................. 24 6.2. Handling of the Repeater ....................................................................................................... 24 6.3. Installation conditions ........................................................................................................... 24 6.4. Inspection before Installing the Repeater ............................................................................ 24 6.5. Mounting of the Repeater ...................................................................................................... 25 Pole Mounting .............................................................................................................. 25 6.5.1. 6.5.2. Wall mounting .............................................................................................................. 26 6.5.3. Repeater Cable connection ......................................................................................... 26 6.6. Installation Procedure ........................................................................................................... 28 Essential inspection prior to operation ......................................................................... 28 6.6.1. Earth Terminal .............................................................................................................. 28 6.6.2. 7. Operation ................................................................................................................... 30 7.1. Introduction ............................................................................................................................ 30 7.2. Establishing LMT Connection ............................................................................................... 30 LMT Connection direct to the Repeater ....................................................................... 30 7.2.1. 7.2.2. Remote LMT Connection using Web GUI .................................................................... 32 7.3. LMT Operation ........................................................................................................................ 33 Information and Menu items......................................................................................... 33 7.3.1. Security Screen ............................................................................................................ 36 7.3.2. Clock Screen ................................................................................................................ 37 7.3.3. 7.3.4. Network Screen ........................................................................................................... 38 Page 3 of 55 ICS Repeater for Mobile WiMAX Status Screen ............................................................................................................... 40 7.3.5. Control Screen ............................................................................................................. 47 7.3.6. Upload Screen ............................................................................................................. 51 7.3.7. Reboot Screen ............................................................................................................. 52 7.3.8. Alarm Mask Screen ...................................................................................................... 53 7.3.9. Alarm History Screen ................................................................................................... 54 7.3.10. 8.0 FCC Compliance Statements55 Page 4 of 55 ICS Repeater for Mobile WiMAX 1. Operating Description The JI43-W2.5G-U/L is designed to amplify between multiple UEs and BTS in a WiMAX System. The Unit consists of a filter and amplifier chain in the downlink and a filter and amplifier chains in the uplink. The uplink and downlink paths are connected via a band pass filter on both ends of each path. 1.1. Down Link figure 1- 1 Downlink path In the downlink path, a signal originating from the BTS is separated from the uplink signal in the FEU(Front End Unit) switch by switching controller. It is forwarded to the ICU(interference cancellation unit) by FEU switch. The ICU down-converts the signal to base-band, digital filters it amplifies it and the up-converts it. In addition the interference cancellation system algorithm (ICS algorithm) is implemented in the ICU. Finally, the signal is sent to the final amplifier by FEU switch and is separated from the uplink input signal in the FEU switch. Page 5 of 55 ICS Repeater for Mobile WiMAX 1.2. Up Link Donor Antenna ICU FEU Sevice Antenna UL-PAU AMP AMP DL-PAU AMP AMP AMP figure 1- 2 Uplink path In the uplink path, a signal originating from the UE is separated from the downlink signal via the FEU(Front end Unit) switch by switching controller. It is forwarded to the ICU(interference cancellation unit) by FEU switch. The ICU down-converts the signal to base-band, digital filters it amplifies it and the up-converts it. In addition the interference cancellation system algorithm (ICS algorithm) is implemented in the ICU. Finally, the signal is sent to the final amplifier by FEU switch and is separated from the downlink input signal in the FEU switch. Page 6 of 55 ICS Repeater for Mobile WiMAX 2. ICS Application 2.1. ICS Repeater Application The following figure illustrates the ICS repeater application. figure 2- 1 Shadow areas caused by tall buildings figure 2- 2 Shadow areas caused by construction of new buildings Page 7 of 55 ICS Repeater for Mobile WiMAX figure 2- 3 Coverage expansion in the low traffic rural area Wireless communication systems provide a two-way information transfer (voice and data) between a base station and multiple mobiles (UE) within a given area. Environmental variables such as physical structures both man-made (buildings) and natural

(mountains) attenuate signals in the transmission path, which reduce the transport signals strength. This attenuation leads to a reduction in quality and data rate and eventually prohibits the systems use entirely. JI43-W2.5G-U/L is specifically designed to extend coverage, enhance quality, and increase air-interface capacity. In the downlink (DL), JI43-W2.5G-U/L picks up signals coming from the Base Station, filters them, amplifies them, and retransmits them to the UE. In the uplink (UL), it picks up signals from the UE, filters them, amplifies them, and retransmits them to the Node B. JI43-W2.5G-U/L constantly monitors the quality of the signals passing through it, while simultaneously electronically decreasing isolation requirements. 2.2. Page 8 of 55 ICS Repeater for Mobile WiMAX 3. System Specifications 3.1. Electrical Specifications Description Frequency Band Bandwidth Total BW Signal Processing BW DL Power Out (Per Band) UL Power Out (Per Band) Gain Gain Range Ripple AGC Range Noise Figure Total System Delay VSWR Antenna Port Impedance DL Input Range UL Input Range Number of FA OOBE

(from 1FA Center) Out of Band Rejection sound level max @ 1 meter Input Voltage(AC) Power Consumption Unit MHz MHz MHz dBm dBm dB dB dB dB dB us Ohms dBm dBm dBm dBm dBm dBm dBm dBA V W JI-43W2.5G-L JI-43W2.5G-U 2502MHz ~ 2568MHz 2624MHz ~ 2690MHz 66MHz 9.2MHz 43dBm (20W) 33dBm (2W) 66MHz 9.2MHz 43dBm (20W) 33dBm (2W) DL = 100dB / UL = 95dB DL = 100dB / UL = 95dB 35dB(DL: 100~65, UL: 95~60) 35dB(DL: 100~65, UL: 95~60) 1.5 35 dB 1.5 35 dB Max Gain: 5dB / Max Gain: 12dB Max Gain: 5dB / Max Gain: 12dB 5 1.5 : 1 50

-75~ -22

-90 ~ -30 1FA 5 1.5 : 1 50

-75~ -22

-90 ~ -30 1FA 11 MHz @ 1 MHz BW ( -13 dBm) 8.5 MHz @ 1MHz BW (-13 dBm) 6.5 MHz @ 1MHz BW ( -13 dBm) 11 MHz @ 1 MHz BW ( -13 dBm) 8.5 MHz @ 1MHz BW (-13 dBm) 6.5 MHz @ 1MHz BW ( -13 dBm) 5.05 MHz @ 100 kHz BW 5.05 MHz @ 100 kHz BW

( -13 dBm)

( -13 dBm) 2495MHz( -37dBm/MHz) 2495MHz( -37dBm/MHz) 55dBA 55dBA 115VAC ~ 240VAC 10%

115VAC ~ 240VAC 10%

< 400W

< 400W table 3- 1 Electrical Specifications Page 9 of 55 ICS Repeater for Mobile WiMAX 3.2. Cancellation Performance Description DL Feedback Signal Detec t Range UL Static Feedback Cancellation Capacity Dynamic Feedback Cancellation Capacity Gain = Isolation + 5dB Doppler Frquency = 5Hz

* JI-43W2.5G-U/L Specifications 0 ~ 6us 0 ~ 6us Gain = Isolation + 8dB Direct Feedback Comments ing table 3- 2 Cancellation Performance 3.3. Mechanical Specifications Description Size Weight Mounting RF Connector CDMA Modem Port Power Connector Battery Connector

* JI-43W2.5G-U/L Specifications 430X 625 X 330 44kg Wall or Pole 7/16 DIN Female N-Type Female MS 3102A-22-2P MS 3102A-20-23S Comments table 3- 3 Mechanical Specification 3.4. Environmental Specifications Specifications Description Operating Temperature

-40~ +55 Humidity 5 ~ 95%

Ingress Protection IP55

* JI-43W2.5G-U/L Comments table 3- 4 Environmental Specification Page 10 of 55 ICS Repeater for Mobile WiMAX 4. System Description 4.1. Gerneral Appearance figure 4- 1 General Appearance of the Repeater (Front, Side, Top, Bottom) Page 11 of 55 ICS Repeater for Mobile WiMAX 3 1 5 6 4 2 figure 4- 2 Bottom view of the repeater No. Name Function 1 2 3 POWER

(AC 120V) BATTERY

(DC 27V) DONOR A : AC_L, B : AC_N, C : GND A: +27V, B: GND Connects to the Donor Ant.

(DIN Type female connector) Page 12 of 55 ICS Repeater for Mobile WiMAX 4 5 6 SERVICE LAN PORT MODEM Connects to the Service Ant.

(DIN Type female connector) Connects to the External LAN port

(RJ-45 Type) Connects to the Modem Ant.

(N Type female connector) table 4- 1 Port description 4.2. Warnings and Harzards Page 13 of 55 ICS Repeater for Mobile WiMAX RF EXPOSURE & ANTENNA PLACEMENT Guidelines Actual separation distance is determined upon gain of antenna used. Please maintain a minimum safe distance of at least 20 cm while operating near the donor and the server antennas. Also, the donor antenna needs to be mounted outdoors on a permanent structure. Page 14 of 55 ICS Repeater for Mobile WiMAX 4.3. Components of the Repeater 9 9 10 10 1 1 2 2 5 5 3 3 6 6 7 7 4 4 8 8 6 7 8 9 Cavity Filter FEU Donor/Server Arrestor Modem 8 8 PSU RCU ICU Downlink PAU Uplink PAU 10 SNMP figure 4- 3 System Arrangement Plan 1 2 3 4 5 4.3.1. Power Supply Unit(PSU) The power supply unit transforms mains power into a predefined DC Voltage. Page 15 of 55 ICS Repeater for Mobile WiMAX AC DC ALM BR1100-03P() OFF I AC_L AC_N AC_INPUT F.G BR1100-02P() I OFF

+27V GND

+6V

+12V AC_F DC_F figure 4- 4 PSU 4.3.2. Remote Control Unit (RCU) The remote control unit (RCU) is responsible for communication and control for the entire unit. figure 4- 5 RCU 4.3.3. Interference Cancellation Unit (ICU) The task of the interference cancellation unit (ICU) is to filter and amplify any signals passing Page 16 of 55 ICS Repeater for Mobile WiMAX through it. In main function, it performs the interference cancellation algorithms, which eliminate the normal problems associated with isolation. figure 4- 6 ICU 4.3.4. Downlink Power Amplifier Unit(DL PAU) The downlink path is amplified by a final amplifier for very high output power(30 Watt). In the JI43-

W2.5G-U/L, power amplifier unit has a very high output power while maintaining superior inter-

modulation and linearity performance. figure 4- 7 Downlink PAU Page 17 of 55 ICS Repeater for Mobile WiMAX 4.3.5. Uplink Power Amplifier Unit(UL PAU) The uplink path is amplified by a final amplifier for high output power. In the JI43-W2.5G-U/L, 33dBm(2W) average power final amplifier is used. figure 4- 8 Uplink PAU 4.3.6. Cavity Filter figure 4- 9 Cavity Filter Page 18 of 55 ICS Repeater for Mobile WiMAX 4.3.7. Front End Unit(FEU) 4.3.8. Arrestor figure 4- 10 FEU figure 4- 11 Arrestor 4.3.9. Modem 800MHz North American Cellular Modem Page 19 of 55 ICS Repeater for Mobile WiMAX figure 4- 12 Modem 4.3.10. Simple Network Management Protocol board(SNMP) figure 4- 13 SNMP Page 20 of 55 ICS Repeater for Mobile WiMAX 5. Feature & Function 5.1. ICS Technology 5.1.1. Comparison of Analog RF repeater with ICS repeater

A few general repeater concepts are as follows :

Traditional repeater requires Gain + 20dB of antenna isolation to operate confidently without oscillations. Therefore, a 100dB gain repeater requires 120dB of antenna isolation to operate properly, which is very difficult to achieve. Outdoor installations with traditional repeaters require multiple repeaters for antenna placements or separate poles with considerable distance in between antennas to achieve isolation to allow for desired RF outputs. Antenna isolation is dynamic. Antenna isolation is affected by movement of trees, cars, trucks, doors and windows. This dynamic affect will cause jitter in analog RF repeaters. The following figure show comparison of analog RF repeater with ICS repeater. Feedback Donor Ant. Isolation = 80dB Coverage Ant. Donor Ant. Feedback Isolation = 80dB Coverage Ant. RF Repeater System Gain = 60dB Gain ICS Digital Repeater System Gain = 100dB

Gain Gain Control Control figure 5- 1 comparison to analog RF repeater to ICS repeater Page 21 of 55 ICS Repeater for Mobile WiMAX 5.1.2. ICS Technology A A Input Signal t Feedback Signal t BTS Received signal Input Signal Regenerated Feedback Signal Input Signal t t A A Rx Antenna Tx Antenna Feedback Gain Selective Channel Emulator Transmitted Signal A 30~40dB Cancellation Quantity t Estimated Feedback Channel A Feedback Channel Information Adaptive Channel Estimator figure 5- 2 ICS Repeater operations t ICS technology uses Digital Feedback Analysis that allows for an 6 micro-second cancellation time window and an unlimited number of interfering signals. ICS technology allows for cancellation of reflections greater than 0.9km away. 5.1.3. Advantages of ICS Max. Repeater Gain = Antenna Isolation + 10dB, this is 40dB more than analog RF repeaters Interference Cancellation Range of 6 us Repeater cancels feedback signals from up to 0.9km away. Parallel and Multiple digital signal processing This provides super fast and accurate interface cancellation, resulting in real time automatic gain adjustments during change of feedback behavior in multi-path environments. Page 22 of 55 ICS Repeater for Mobile WiMAX Unlimited number of feedback signals can be cancelled at the same time. ICS repeater maintains high signal qualities even at maximum gains. Page 23 of 55 ICS Repeater for Mobile WiMAX 6. Installation 6.1. Transportation of the Repeater While transporting the repeater unit, it is advised to pack the repeater in its original packaging supplied by manufacturer. The Unit is considerably heavy. Make sure that a suitable mounting surface is used. Ensure there is adequate manpower to handle the weight of the system. It is important to prevent any shock applied to the repeater units while loading/unloading to/from the vehicle. During transportation, it is advised to prevent or minimize the movement of the packed repeater units. 6.2. Handling of the Repeater The user should prevent any defect caused by an accident, misuse, abuse, insect infestations, improper installation or operation, lack of reasonable care, unauthorized modification, loss of parts, tampering or any repair by a person not authorized by FID. To avoid accident, risk of fire or electric shock, do not expose the repeater to rain or any other wet condition. 6.3. Installation conditions The Surrounding temperature should be in the range of -40C +55C. Ground connections should be attached to all metal cabinets for safety. Avoid any vibration or impact from any external source. AC power source should be 120V. (Range : 100V ~ 240V) The cable loss between antenna and the repeater unit shouldnt be greater than 5dB.

(Preferred but not essential). Check the VSWR of the cable that connects antenna to the repeater is less than 1:1.5. 6.4. Inspection before Installing the Repeater Check if there is any physical damage on the repeater cabinet. If any damage is found, it is advised to perform close inspection on the operating features and RF signal tests to verify the repeater performance. Check if theres any part of the cabinet exposed to water or other liquid substances. Before installing the repeater, check the serial number of the unit to be installed. Page 24 of 55 ICS Repeater for Mobile WiMAX Check if the correct accessories have been supplied. 6.5. Mounting of the Repeater 6.5.1. Pole Mounting figure 6- 1 Poll Mounting Page 25 of 55 ICS Repeater for Mobile WiMAX 6.5.2. Wall mounting 6.5.3. Repeater Cable connection As the installation conditions will be site dependent, the JI43-W2.5G-U/L includes only the connectors required for connection to the Repeater. The following Connector cables will be supplied:

- AC Connector (cable length 2 meters)

- DC Connector (cable length 2 meters) The Connectors will be military standard type shown below. The other end of the cable will be bare to allow easy installation into the site source. Note: It will be the installer/operators responsibility to provide safe and stable connection of the bare ends to the site source. figure 6- 2 Military Standard Connector Page 26 of 55 ICS Repeater for Mobile WiMAX figure 6- 3 AC cable figure 6- 4 DC cable Page 27 of 55 ICS Repeater for Mobile WiMAX 6.6. Installation Procedure 6.6.1. Essential inspection prior to operation 1. Power on the JI43-W2.5G-U/L system only after confirming that the AC Terminal is operating normally. Verify that the power LED is ON. (Power supply unit : Green LED = Normal operation) 2. Verify that the antenna connection is correct.

- Confirm the connection of the antennas to the correct ports.

- Confirm the connection is waterproof. The following figures depict cable connection of antennas and AC Terminal. figure 6- 3 Cable connection 6.6.2. Earth Terminal Attach individual ground of the arrestor to the back of the repeater. Ground the earth connection to the side of the equipment. The description of the earth terminal is as follows. Page 28 of 55 ICS Repeater for Mobile WiMAX figure 6- 4 Earth Terminal Page 29 of 55 ICS Repeater for Mobile WiMAX 7. Operation 7.1. Introduction The JI43 can be controlled by either the LMT (Local Maintenance Terminal) or remotely via the Web GUI application. Controlling the JI43 using the LMT requires a PC with an Ethernet cable for the link between the PC and the Repeater System. To control the Repeater using the Web GUI, the user requires a PC with an internet connection. The LMT and Web GUI allow the user to monitor the status of the JI43 system and control all aspects of the system with a user-friendly Graphical User Interface (GUI). 7.2. Establishing LMT Connection The JI43 LMT can be accessed in three ways:

(a) Local access via Ethernet direct to the Repeater

(b) Remote access via the internet using the Web GUI application 7.2.1. LMT Connection direct to the Repeater The user can access the LMT by connecting a cable directly to the Repeater. This method requires the user to open the Repeater cabinet door to access the 4 ports HUB 1) Open the Repeater cabinet door to gain internal access. 2) Connect an Ethernet cable from the PC to the one of LAN port of the HUB. (HUB has 4 LAN port and one is assigned to the Modem and Operator is able to use one of three ports) 3) Ensure the Repeater is powered ON. Page 30 of 55 ICS Repeater for Mobile WiMAX figure 7- 1 4port HUB in SNMP Module 4) Open a new Web Browser (such as Microsoft Internet Explorer) window on the PC. 5) In the address bar of the browser, enter the following address http://192.168.1.110:80 6) If the address was entered correctly, the login screen will be displayed. Log in to the LMT by entering a valid Id and Password. 7) ID: ad01 Password: 0000 figure 7- 2 Login Screen Page 31 of 55 ICS Repeater for Mobile WiMAX 7.2.2. Remote LMT Connection using Web GUI The JI43 LMT can also be accessed remotely using the Juni Web GUI application. The Juni Web GUI allows the user to access the Repeater from anywhere there is an internet connection. 1) Ensure the PC is connected to the internet. 2) Open a new Web Browser (such as Microsoft Internet Explorer) window on the PC. 3) In the address bar of the browser, enter the applicable IP address of the Repeater to be accessed. This address is obtained from the Network Operator. 4) If the address was entered correctly, the login screen will be displayed. Log in to the LMT by entering a valid Id and Password. NOTE The screenshots in this section are from a standard notebook PC running the Windows XP Professional operating system. These screenshots may vary slightly depending on the users PC and browser configuration. Page 32 of 55 ICS Repeater for Mobile WiMAX 7.3. LMT Operation 7.3.1. Information and Menu items After successful login, the Status screen will be displayed by default. The user can navigate to different screens of the LMT by using the menu buttons located on the top of the screen. All screens in the menu items display a set of static parameters that contain basic system information of the Repeater. Menu Buttons System Information figure 7- 3 Default LMT Screen Page 33 of 55 System Information ICS Repeater for Mobile WiMAX Menu Buttons Item Description Security Clock Network Status Control Upload Reboot Setup/modify account user ID and passwords. Setup/modify system date and time. Setup/modify network configuration parameters such as IP addresses. Display the current status of Repeater Setup/modify Repeater parameters. Upgrade the Repeaters firmware. Reboot the Repeater system. Alarm Mask Setup/modify alarm masks. Alarm History View generated alarms Logout Log out of the Web GUI application. table 7- 1 LMT Menu Buttons Page 34 of 55 ICS Repeater for Mobile WiMAX System Information Item Description RTC Time Displays the date and time of the Repeater system. System Information Part Number Displays the part number of the system. RCU FW Version Displays the RCU firmware version of the system. NCU FW Version Displays the NCU firmware version of the system. Web GUI Version Displays the Web GUI version. Network Information IP Address Displays the IP address of the Repeater system. WiMAX Site ID Displays the site ID of the Repeater system. Vendor Serial Number Displays the Juni serial number of the Repeater. Sprint Asset Tag Displays the Sprint Asset Tag number. Sprint Serial Number Displays the Sprint serial number of the Repeater. CLLI Latitude Longitude Message Displays the CLLI code of the Repeater. Displays the latitude of the Repeater site. Displays the longitude of the Repeater site. Displays any miscellaneous messages for the Repeater. table 7- 2 System Information Items Page 35 of 55 ICS Repeater for Mobile WiMAX 7.3.2. Security Screen The Security screen allows the user to setup and modify the ID and passwords of registered users of the system. figure 7- 4 Security Screen Page 36 of 55 ICS Repeater for Mobile WiMAX Security Menu shows the number of users implemented such as 1 Viewer user, 5 Operator users and 2 Admin users. To setup or modify the parameters in the Security screen:

1) Enter the current User ID and Password. 2) In cases of a password change, put new password and re-type the new Password. 3) Click [SUBMIT] to confirm the modification. 7.3.3. Clock Screen The Clock screen allows the user to set the date and time of the Repeater system. To change the date and time, enter the desired values in the fields and click [Set Date/Time]. figure 7- 5 Clock Screen Page 37 of 55 ICS Repeater for Mobile WiMAX 7.3.4. Network Screen The Network screen of the LMT allows the user to setup and modify the network parameters of the system, such as IP addresses and Gateway information. A summary of this page is also always displayed on the left side of the LMT screen. figure 7- 6 Network Screen To change the parameters, enter the desired value in the fields provided and check the checkbox then click [SUBMIT] to confirm the change. Note that changing the IP address parameters will result in the connection being lost. Page 38 of 55 ICS Repeater for Mobile WiMAX Network Screen Parameters Item Description WiMAX Site ID View/modify the WiMAX site ID code. Latitude Longitude View/modify the latitude of the site location. Can be entered in decimal degrees or in degrees, minutes and seconds format. View/modify the longitude of the site location. Can be entered in decimal degrees or in degrees, minutes and seconds format. Heartbeat Interval View/modify the heartbeat interval. Part Number View/modify the heartbeat interval. Vendor Serial Number View/modify the Juni serial number of the Repeater. Sprint Asset Tag View/modify the Sprint Asset Tag number. Sprint Serial Number View/modify the Sprint serial number of the Repeater. CLLI View/modify the CLLI code of the Repeater. NMS IP Address View/modify the IP Address of the Repeater CTRL Board. NCU E Network Information IP Address Net Mask View/modify the IP Address of the NCU E Network. View/modify the net mask of the NCU E Network. Gateway View/modify the gateway IP address of the NCU E Network. table 7- 3 Network Screen Parameters Page 39 of 55 ICS Repeater for Mobile WiMAX 7.3.5. Status Screen The Status screen of the LMT allows the user to monitor the current status of Repeater. The Status window displays the following information:

Downlink

Uplink

System

Sync. Status figure 7- 7 Status Screen Page 40 of 55 ICS Repeater for Mobile WiMAX 7.3.5.1. Downlink Screen figure 7- 8 Downlink Status Screen Items Power Description Remark Input Displays the level of Input power to Donor ANT. dBm Output Displays the level of Output power from Service ANT. dBm Gain Gain Displays the current Gain of Repeater Isolation Iso Displays the isolation between the Donor ANT. and Service ANT. Items Gain ICU PAU Description Gain Displays the current Gain PPT Target Displays the target level of Preamble Pilot Tracking Target Output Power Displays the current state (On/Off) of ICU Displays the current state (On/Off) of PAU Page 41 of 55 dB dB Remark dB dBm On: Green Off: Red On: Green Off: Red ICS Repeater for Mobile WiMAX Max. Input Displays the Upper limit of Input Power to Donor ANT. Input Max. Alarm Displays the alarm status of Max. Input Power to Donor ANT. Min. Input Displays the Lower limit of Input Power to Donor ANT. Input Min. Alarm Displays the alarm status of Min. Input Power to Donor ANT. Power Max. Output Displays the Upper limit of Output Power from Service ANT. Max. Output Alarm Displays the alarm status of Max. Output Power from Service ANT. Min. Output Displays the Lower limit of Output Power from Service ANT. Min. Output Alarm Displays the alarm status of Min. Output Power from Service ANT. Preamble OutPwr Displays the current Preamble Output Power table 7- 4 Downlink Status Screen parameters Page 42 of 55

(Changeable in Control Window) Alarm: Red

(Over the upper limit) Normal:

Green

(Changeable in Control Window) Alarm: Red

(Below the lower limit) Normal:

Green

(Changeable in Control Window) Alarm: Red

(Over the upper limit) Normal:

Green

(Changeable in Control Window) Alarm: Red

(Below the lower limit) Normal:

Green dBm ICS Repeater for Mobile WiMAX 7.3.5.2. Uplink Screen figure 7- 9 Uplink Status Screen Description Remark Input Displays the level of Input power to Service ANT. dBm Output Displays the level of Output power from Donor ANT. dBm Items Power Gain Gain Displays the current Gain of Repeater Isolation Iso Displays the isolation between the Donor ANT. and Service ANT. dB dB Items Gain ICU PAU Description Gain Displays the current Gain Balance the offset value Displays compared to Downlink gain for Uplink gain Displays the current state (On/Off) of ICU Displays the current state (On/Off) of PAU Page 43 of 55 Remark dB dBm On: Green Off: Red On: Green Off: Red in

(Changeable Control Window) Alarm: Red (Over the upper limit) Normal: Green

(Changeable Control Window) Alarm: Red (Over the upper limit) Normal: Green in ICS Repeater for Mobile WiMAX Power Max. Input Displays the Upper limit of Input Power to Service ANT. Input Max. Alarm Displays the alarm status of Max. Input Power to Service ANT. Max. Output Displays the Upper limit of Output Power from Donor ANT. Max. Output Alarm Displays the alarm status of Max. Output Power from Donor ANT. table 7- 5 Uplink Status Screen parameters Page 44 of 55 ICS Repeater for Mobile WiMAX 7.3.5.3. System Status Screen figure 7- 10 System Status Screen Items Description Displays System Supplier Supplier Type Displays the Product Type System Version Displays System Version Frequency Displays the current operating frequency Door Displays the Status of Door AC DC Displays the status of AC Displays the status of DC Displays the Upper limit of Temperature Displays the alarm status of High Temp. Remark Alarm: Red (Open) Normal: Green (Close) Alarm: Red Normal: Green Alarm: Red Normal: Green Unit : oC Alarm: Red Normal: Green Common Information High Temp. High Alarm Temp. Temperature D_ANT. VSWR S_ANT. VSWR Displays the current internal Temperature of Repeater Displays the current Donor port status Whether or not Donor port is Open Displays the current Service port status Whether or not Service port is Open Unit : oC Alarm: Red Normal: Green Alarm: Red Normal: Green table 7- 6 System Status Screen parameters Page 45 of 55 ICS Repeater for Mobile WiMAX 7.3.5.4. Sync. Status Screen figure 7- 11 Sync. Status Screen Items Description Sync. Status Displays Sync. Detection Status Remark Alarm: Red (Lock) Normal: Green (Unlock) Cell/Segment Displays the BTS information RAS ID Displays the BTS information Symbol Ratio Displays the Symbol Ratio DL Symbol. : UL Symbol Common Information Preamble Index Dislays the BTS information Preamble InPwr Displays the current Preamble input power Preamble QM Displays the Quality of Input signal Required parameter for Installation guideline : Qm < 3 field installation Preamble RCE Displays the Preamble RCE Required parameter for field installation table 7- 7 Sync. Status Screen parameters Page 46 of 55 ICS Repeater for Mobile WiMAX 7.3.6. Control Screen The Control screen is displayed by default when the user logs in to the LMT. The Control screen allows the user to monitor and control the RF and the environmental parameters of the Repeater system, such as setting the gain of the Repeater or turning the LPA (amplifier) ON/OFF. figure 7- 12 Control Screen All parameters that include Down arrow keys, radio buttons or ON/OFF buttons can be modified by the user. The screen also has an ALARM section that displays the alarm status of the Repeaters at a glance. The LED colors adjacent to the alarm items represent its current state Green for normal and Red for alarm state. To setup or modify the parameters in the Control screen:

a. Use the Down arrow keys to select a Gain Mode. b. Click [SUBMIT] to confirm the setting, or;

c. Enter an analog value directly into the field using the keyboard. d. Click [SUBMIT] to confirm the setting, or;

e. Click on the ON/OFF button adjacent to the parameter to be changed. f. Once the correct button has been pressed, click [SUBMIT] to confirm the setting, or;

g. Select the Radio button adjacent to the desired parameter value. Page 47 of 55 ICS Repeater for Mobile WiMAX h. Click [SUBMIT] to confirm the setting. 7.3.6.1. Downlink Control Screen figure 7- 13 Downlink Control Screen Items Description Remark Gain PPT Target If the setting mode of ICU is GAIN SET, Gain can be set. If the setting mode of ICU is PPT AGC, Preamble Power Tracking mode can be set.

[Default Mode]

Range: 65 ~ 100 dB Range: 20 ~ 47 dBm Displays the current state (On/Off) of ICU Displays the current state (On/Off) of PAU On: Green Off: Red On: Green Off: Red Gain Mode ICU PAU Max. Input Power Min. Input Max. Output Sets the Upper limit of Input Power to Donor ANT. Sets the Lower limit of Input Power to Donor ANT. Sets the Upper limit of Output Power from Service ANT. Range : -80 ~ -22dBm Range : -80 ~ -22dBm Range : 15 ~ 45dBm Page 48 of 55 ICS Repeater for Mobile WiMAX Min. Output Sets the Lower limit of Output Power from Service ANT. Range : 15 ~ 35dBm table 7- 8 Downlink Control Screen parameters Note: Gain Mode

GAIN SET MODE: The output power is dependent on the Gain. When the input power varies, the output Power will change depending on the set gain.

PPT AGC MODE: This mode is used to ensure consistent output power. This output power is determined by the Preamble Target Power setting. Output power will remain at this power regardless of variations in input powers. 7.3.6.2. Uplink Control Screen figure 7- 14 Uplink Control Screen Items Gain Gain Balance Description Remark If the setting mode of ICU is GAIN SET, Gain can be set. If the setting mode of ICU is Balance, Output Balance can be set.

[Default Mode]

Range: 65 ~ 95 dB Range: -10 ~ +10 dB ICU ICU Sets the On/Off of ICU On: Green Off: Red Page 49 of 55 ICS Repeater for Mobile WiMAX PAU PAU ON/OFF Sets the On/Off of PAU On: Green Off: Red Power Max. Input Max. Output Sets the Upper limit of Input Power to Service ANT. Sets the Upper limit of Output Power from Donor ANT. Range : -100 ~ -27dBm Range : +15 ~ +35dBm table 7- 9 Uplink Control Screen parameters 7.3.6.3. System Control Screen figure 7- 15 System Control Screen Items Description Remark Frequency Sets the Center frequency Range:

Lower Band : 2507MHz ~ 2563MHz Upper Band : 2629MHz ~ 2685MHz Temp. High Temp. Sets the upper limit of Temperature Range: 0C ~ +80C table 7- 10 System Control Screen parameters Page 50 of 55 ICS Repeater for Mobile WiMAX 7.3.7. Upload Screen The Upload screen allows the user to change the Repeater systems firmware. The firmware of the Repeater may require an upgrade to support additional features. figure 7- 16 Upload Screen To upload a new firmware to the Repeater:

1) Click [Browse] to locate and select the desired firmware file. 2) Confirm the correct file has been selected. 3) Insert the Key Value located within the file name. [It is a 4 digit alphanumeric value]

4) Click [Upload] to commence firmware upgrade. 5) Screen will reload several times and then refresh back to the log in page. 6) Do not log in yet until you have noticed that the LAN has been disconnected and then reconnected. 7) Once the whole process is complete, you will need to re-log-in. If the firmware version has been changed, then the upload has been successfully applied. WARNING The upload process requires a reboot of the Repeater system. This will cause an outage of service for a brief period while the Repeater system re-initiates itself. Page 51 of 55 ICS Repeater for Mobile WiMAX Upload Screen Parameters Alarm / Parameter Description Upload File Displays the selected file to be uploaded to the Repeater system. Key Value Error Check Value for Repeater firmware file.

[Browse] Button Click to search and select the desired firmware file.

[Upload] Button Click to begin upload process. table 7- 11 Upload Screen Parameters 7.3.8. Reboot Screen The Reboot screen is used to manually reboot the Repeater system. Click

[Reboot System] to perform this function. table 7- 12 Reboot Screen WARNING Rebooting the system will result in service outage. Only perform this function if service outage is planned. Page 52 of 55 ICS Repeater for Mobile WiMAX 7.3.9. Alarm Mask Screen The Alarm Mask screen allows the user to mask certain alarm items. Alarm masking may be desired to prevent repeated known and acknowledged alarms from being generated. figure 7- 17 Alarm Mask Screen To mask an alarm:

1) Check the checkbox adjacent to the alarms to be masked. 2) Click [SUBMIT] to confirm alarm masking. Alarm Mask Screen Parameters Alarm / Parameter Description RF Power View/set masking status of RF Power alarm. VSWR RSSI View/set masking status of VSWR alarm. View/set masking status of RSSI alarm. Over Temperature View/set masking status of Over Temperature alarm. Under Current View/set masking status of Under Current alarm. table 7- 13 Alarm Mask Screen Parameters Page 53 of 55 ICS Repeater for Mobile WiMAX 7.3.10. Alarm History Screen The Alarm History screen allows the user to view and obtain the history log for all alarms generated by the Repeater system. Clicking the [GET HISTORY] button will display a list of all generated alarms for the Repeater. figure 7- 18 Alarm History Screen Alarm History Screen Parameters Alarm / Parameter Description Alarm Count Displays the total number of alarms in the log. Index Item reference number. Time Stamp Displays the time of alarm generation. Device Name Status Displays the type of device generating the alarm. Displays the name of the alarm generated. Displays the status of the alarm generated Fail or Normal.

[GET HISTORY]

Obtain the list of alarms saved in the Repeater system.

[ERASE HISTORY]

Delete all saved alarms form the Repeater system. Page 54 of 55 ICS Repeater for Mobile WiMAX

[CLEAR]

Clear the current list. table 7- 14 Alarm History Screen Parameters 8. FCC Compliance Statements Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna. Connect the equipment into an outlet on a circuit different from that to which the receiver is Increase the separation between the equipment and receiver. connected. Consult the dealer or an experienced radio/TV technician for help. Modifications not expressly approved by the manufacturer could void the user's authority to operated the equipment under FCC rules. Page 55 of 55