ICS Repeater for Mobile WiMAX Mobile WiMAX ICS Repeater 2008.
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 ..............
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 ....................................... 오류! 책갈피가 정의되어 있지 않습니다. 5.2.
ICS Repeater for Mobile WiMAX 7.3.5. Status Screen ............................................................................................................... 40 7.3.6. Control Screen ............................................................................................................. 47 7.3.7. Upload Screen ............................................................................................................. 51 7.3.8. Reboot Screen ................................................
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.
ICS Repeater for Mobile WiMAX 1.2. Up Link Donor Antenna Sevice Antenna ICU FEU 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.
ICS Repeater for Mobile WiMAX 2. ICS Application 2.1. ICS Repeater Application The following figure illustrates the ICS repeater application.
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 signal’s strength.
ICS Repeater for Mobile WiMAX 3. System Specifications 3.1. Electrical Specifications Description Frequency Band Total BW Bandwidth Signal Processing BW DL Power Out (Per Band) Unit JI-43W2.5G-L JI-43W2.5G-U MHz 2502MHz ~ 2568MHz 2624MHz ~ 2690MHz MHz 66MHz 66MHz MHz 9.2MHz 9.
ICS Repeater for Mobile WiMAX 3.2. Cancellation Performance Description Feedback Specifications Signal Detec t ing DL 0 ~ 6us UL 0 ~ 6us Range Comments Static Feedback Cancellation Capacity Gain = Isolation + 8dB Direct Feedback Dynamic Feedback Cancellation Capacity Gain = Isolation + 5dB Doppler Frquency = 5Hz * JI-43W2.5G-U/L 공통 적용사항 table 3- 2 Cancellation Performance 3.3.
ICS Repeater for Mobile WiMAX 4. System Description 4.1.
ICS Repeater for Mobile WiMAX 3 5 6 1 4 2 figure 4- 2 Bottom view of the repeater No. 1 Name Function POWER (AC 120V) A : AC_L, B : AC_N, C : GND 2 BATTERY (DC 27V) A: +27V, B: GND 3 DONOR Connects to the Donor Ant.
ICS Repeater for Mobile WiMAX 4 SERVICE 5 LAN PORT 6 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.
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.
ICS Repeater for Mobile WiMAX 4.3. Components of the Repeater 1 2 5 3 9 6 10 7 4 8 8 1 PSU 6 Cavity Filter 2 RCU 7 FEU 3 ICU 8 Donor/Server Arrestor 4 Downlink PAU 9 Modem 5 Uplink PAU 10 SNMP figure 4- 3 System Arrangement Plan 4.3.1. Power Supply Unit(PSU) The power supply unit transforms mains power into a predefined DC Voltage.
ICS Repeater for Mobile WiMAX I AC DC ALM I OFF OFF ㅇ BR1100-02P(비룡) ㅇ BR1100-03P(비룡) AC_L AC_N AC_INPUT F.G +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.
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 JI43W2.5G-U/L, power amplifier unit has a very high output power while maintaining superior intermodulation and linearity performance.
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 figure 4- 9 Cavity Filter 4.3.6.
ICS Repeater for Mobile WiMAX 4.3.7. Front End Unit(FEU) figure 4- 10 FEU 4.3.8. Arrestor figure 4- 11 Arrestor 4.3.9.
ICS Repeater for Mobile WiMAX figure 4- 12 4.3.10.
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.
ICS Repeater for Mobile WiMAX 5.1.2.
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.
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.
ICS Repeater for Mobile WiMAX • Check if the correct accessories have been supplied. 6.5. Mounting of the Repeater 6.5.1.
ICS Repeater for Mobile WiMAX 6.5.2. Wall mounting 추후 기입 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.
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.
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.
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”.
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.
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.
ICS Repeater for Mobile WiMAX • Menu Buttons Item Description Security Setup/modify account user ID and passwords. Clock Setup/modify system date and time. Setup/modify network configuration parameters such as IP Network addresses. Status Display the current status of Repeater Control Setup/modify Repeater parameters. Upload Upgrade the Repeater’s firmware. Reboot Reboot the Repeater system. Alarm Mask Setup/modify alarm masks.
ICS Repeater for Mobile WiMAX • System Information Item RTC Time Description 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.
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.
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.
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.
ICS Repeater for Mobile WiMAX • Network Screen Parameters Item Description WiMAX Site ID View/modify the WiMAX site ID code. View/modify the latitude of the site location. Can be entered in Latitude decimal degrees or in degrees, minutes and seconds format. View/modify the longitude of the site location. Can be entered in Longitude decimal degrees or in degrees, minutes and seconds format. Heartbeat Interval View/modify the heartbeat interval. Part Number View/modify the heartbeat interval.
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: ¾ Downlink ¾ Uplink ¾ System ¾ Sync.
ICS Repeater for Mobile WiMAX 7.3.5.1. Downlink Screen figure 7- 8 Downlink Status Screen Items 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 dB Isolation Iso Power Items Gain Gain PPT Target Displays the isolation between the Donor ANT. and Service ANT.
ICS Repeater for Mobile WiMAX (Changeable Max. Input Displays the Upper limit of Input Power to Donor ANT. in Control Window) Max. Input Displays the alarm status of Max. Input Power to Alarm Donor ANT. Alarm: Red (Over the upper limit) Normal: Green (Changeable Min. Input Displays the Lower limit of Input Power to Donor ANT. in Control Window) Min. Input Displays the alarm status of Min. Input Power to Alarm Donor ANT. Alarm: Red (Below the lower limit) Normal: Green Power Max.
ICS Repeater for Mobile WiMAX 7.3.5.2. Uplink Screen figure 7- 9 Uplink Status Screen Items Input Power Output Gain Gain Isolation Iso Items Gain Gain Balance Description Remark Displays the level of Input power to Service ANT. dBm Displays the level of Output power from Donor ANT. Displays the current Gain of Repeater Displays the isolation between the Donor ANT. and Service ANT.
ICS Repeater for Mobile WiMAX Max. Input Max. Displays the Upper limit of Input Power to (Changeable Service ANT. Input Displays the alarm status of Max. Input Power to Alarm Power Max. Output Service ANT. Alarm: Red (Over the upper limit) Normal: Green Displays the Upper limit of Output Power from (Changeable Donor ANT. in Control Window) Max. Output Displays the alarm status of Max. Output Power Alarm in Control Window) from Donor ANT.
ICS Repeater for Mobile WiMAX 7.3.5.3. System Status Screen figure 7- 10 System Status Screen Items Common Information Description Supplier Displays System Supplier Type Displays the Product Type System Version Displays System Version Frequency Displays the current operating frequency Door Displays the Status of Door AC Displays the status of AC DC Displays the status of DC High Temp. High Displays the Upper limit of Temperature Temp. Alarm Temperature D_ANT. VSWR S_ANT.
ICS Repeater for Mobile WiMAX 7.3.5.4. Sync. Status Screen figure 7- 11 Sync. Status Screen Items Common Description Sync. Status Displays Sync. Detection Status Cell/Segment Displays the BTS information RAS ID Displays the BTS information Symbol Ratio Displays the Symbol Ratio Preamble Index Dislays the BTS information Preamble InPwr Displays the current Preamble input power Remark Alarm: Red (Lock) Normal: Green (Unlock) DL Symbol.
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.
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 Gain Gain Mode Remark If the setting mode of ICU is GAIN SET, Gain can be set. Range: 65 ~ 100 dB If the setting mode of ICU is PPT AGC, PPT Target Preamble Power Tracking mode can be set. Range: 20 ~ 47 dBm [Default Mode] ICU Displays the current state (On/Off) of ICU PAU Displays the current state (On/Off) of PAU Max.
ICS Repeater for Mobile WiMAX Min. Sets the Lower limit of Output Power from Output Service ANT. Range : 15 ~ 35dBm table 7- 8 Downlink Control Screen parameters Note: Gain Mode ¾ 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. ¾ PPT AGC MODE: This mode is used to ensure consistent output power. This output power is determined by the Preamble Target Power setting.
ICS Repeater for Mobile WiMAX PAU PAU ON/OFF On: Green Sets the On/Off of PAU Off: Red Sets the Upper limit of Input Power to Max. Input Service ANT. Power Sets the Upper limit of Output Power Max. Output from Donor ANT. Range : -100 ~ -27dBm Range : +15 ~ +35dBm table 7- 9 Uplink Control Screen parameters 7.3.6.3.
ICS Repeater for Mobile WiMAX 7.3.7. Upload Screen The “Upload” screen allows the user to change the Repeater system’s 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.
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.
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.
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.
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.
