EXHIBIT 11 Reference Manual Applicant: Northern Telecom Ltd. For Certification on: AB6UMTS1900IND This document contains Proprietary Information of Northern Telecom Limited. This information is considered to be CONFIDENTIAL and should be treated appropriately.
Nortel Networks Confidential Table of contents v About this document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Applicability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Prerequisites . . . . . . .
vi Table of contents Nortel Networks Confidential PCM protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 PFM (Power Filter Module) (iBTS indoor) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Hardware description of the RF block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 DDM (Dual Duplexer Module) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Nortel Networks Confidential Table of contents vii CEM functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104 TRM functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107 GPSAM functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112 Physical interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Nortel Networks Confidential 7 Nortel Networks UTRAN solution iRNC The iRNC is the e--mobility Internet RNC. It is the 3GPP--compliant UMTS RNC developed by Nortel Networks. The generic term iRNC is used throughout this document to designate the e--mobility Internet RNC. The iRNC allows mobility between UMTS and GSM networks.
8 Nortel Networks Confidential Figure 2 UTRAN architecture UMT/DCL/DD/0002 411--8111--905 Preliminary 01.
Nortel Networks Confidential 9 iBTS description Introduction A node B is a logical node responsible for radio transmission/reception in one or more cells to/from the User Equipement. A node B provides the following interfaces: the Iub interface towards the iRNC the Uu interface towards the User Equipment (UE) A node B may consists of one or several iBTSs.
10 Nortel Networks Confidential iBTS operational features The main characteristics of the iBTS are the following: no need for an extra site cabinet (iBTS outdoor) for user space and batteries easy installation and commissioning a flexible product: possible growth from low to high capacity without any additional cabinets front access only PCM internal protection most common modules between the iBTS outdoor and the iBTS indoor iBTS indoor powered in dc or ac The iBTS is a low capacity solution that can grow
Nortel Networks Confidential 11 iBTS tools and utilities The iBTS has two main maintenance tools: the OAM Access (Operation, Administration and Maintenance) and the TIL (Terminal for Local Installation). The Operation and Maintenance center for Node B is responsible for the configuring and supervising functions.
12 Nortel Networks Confidential Presentation of the iBTS outdoor The iBTS outdoor is a single cabinet closed by two doors. Figure 3 Outside view (iBTS outdoor) UMT/DCL/DD/0002 411--8111--905 Preliminary 01.
Nortel Networks Confidential 13 Figure 4 Inside view (iBTS outdoor) The cabinet is divided into: the iDACS (internet Direct Ambient Cooling System) which is the cooling unit of the cabinet the main compartment the bulkhead which allows cable connection and lightning protection About the iBTS
14 Nortel Networks Confidential The main compartment is divided into two parts: the left part which includes: x the dc power system shelf: the dc distribution module, the SPCM (Single Power Control Module), the rectifiers (up to seven) x the digital shelf x the battery system the right part which includes: x the ac distribution module x the RF block x the user space and its ICO x the interconnection module x the ac filtering box UMT/DCL/DD/0002 411--8111--905 Preliminary 01.
Nortel Networks Confidential 15 Figure 5 Bulkhead front view (iBTS outdoor) About the iBTS
Nortel Networks Confidential 21 Description of the digital shelf of the iBTS The digital shelf houses all the digital modules of the iBTS. The digital shelf is common to the iBTS indoor 700 and the iBTS outdoor and houses up to 12 modules. These modules share ten slots in the iBTS indoor cabinet. Backplane functionalities The backplane board is part of the digital shelf. It is in charge of supporting all internal links and electrical interfaces between the modules of the digital shelf.
22 Nortel Networks Confidential Figure 11 Front view of the digital shelf (iBTS outdoor and iBTS indoor 700) F=Filler: module available for future versions Figure 12 Front view of the digital shelf (iBTS indoor 600) F=Filler: module available for future versions UMT/DCL/DD/0002 411--8111--905 Preliminary 01.
Nortel Networks Confidential 23 Description of the RF block of the iBTS The RF block contains the MCPA and the DDM modules. The RF block is common to the iBTS indoor and the iBTS outdoor. The number of modules depends on the iBTS configuration. Physical description The RF block contains the RF modules: One MCPA shelf that contains six slots. In the three MCPAs configuration, these MCPAs are housed in slots 1, 3, and 5.
24 Nortel Networks Confidential Configuration rules of the iBTS The iBTS has the following characteristics: one mode of operation: STSR one frequency carrier Antenna configuration The iBTS can be equipped with: two antennas for single--sector configuration four antennas for bi--sector configuration six antennas for three--sectors configuration Frequency carriers The iBTS supports multi--carriers configuration and allows 5 MHz operation in the STSR configuration.
Nortel Networks Confidential 25 STSR configuration STSR configuration stands for Sectorial Transmit Sectorial Receive. It is the standard three--sector configuration. The iBTS is logically declared at the iRNC as three cells. The user equipment reports measurements for the three sectors and softer handover is controlled by the network. The power allocation in STSR is independant across sectors. The iBTS supports the STSR1 configuration: one carrier per sector.
26 Nortel Networks Confidential iBTS physical characteristics This section gives the physical characteristics of the iBTS cabinet.
Nortel Networks Confidential 33 TRM (Tranceiver Receiver Module) description The TRM is located in the iBTS digital shelf. In the complete configuration, for future versions, the highest number of TRMs is four. The present version contains only one TRM.
34 Nortel Networks Confidential TRM hardware description Figure 17 Front view of the TRM UMT/DCL/DD/0002 411--8111--905 Preliminary 01.
Nortel Networks Confidential 35 Front panel description The front panel of the TRM module has two corporate leds indicating the TRM status: Green rectangular LED Red triangular LED Status OFF OFF Sleep, unpowered or not inserted ON ON Power up self--test underway ON OFF Module should not be removed ON BLINK Module is partially faulty OFF ON Module may be removed, alarm state, BISTs NOK OFF BLINK Module is waiting for Boot The front panel also has: one “Debug” Ethernet connector (RJ--4
36 Nortel Networks Confidential TRM interfaces Figure 18 TRM interfaces Note: This figure describes the complete configuration (available for future versions) UMT/DCL/DD/0002 411--8111--905 Preliminary 01.
Nortel Networks Confidential 37 Internal interfaces The internal interfaces are the signals exchanged between the rTRM and the dTRM boards. The samples are sent to the rTRM board and are converted into an analog signal. In the opposite direction, the rTRM board digitally converts the six received signals and sends the resulting sample flows to the dTRM board.
38 Nortel Networks Confidential CCM (Core Control Module) description The CCM is located in the iBTS digital shelf. In the complete configuration, for future versions, the highest number of CCMs is two. The present version contains only one CCM. CCM hardware description Figure 19 Front view of the CCM UMT/DCL/DD/0002 411--8111--905 Preliminary 01.
Nortel Networks Confidential 39 Front panel description The connectors of the front panel are the following: one “ATM” test port (RJ--45 connector) two “Port 1” and “Port 2” Ethernet ports (10/100 Base T and 10 Base T connectors) used for Ethernet access and TIL connection one “E1/T1” connector (44--pin D--sub female connector) used for E1/T1 connection three timing reference ports (SMB connector) for iBTS commissioning labelled “10 MHz”, “ES Out” (Even Second Output), and “ES In” (Even Second Input) The
40 Nortel Networks Confidential CCM interfaces Signal interfaces One CCM supports up to three wide--band carriers with transmit and receive diversity in a tri--sectored carrier configuration. Each CCM is linked with the CEM and TRM by a point--to--point HSSL connection. The two CCMs are linked by two signals: the IML ATM links: 155 Mbit/s the IMC links: 10 Mbit/s The following figure shows the different interfaces of the CCM. UMT/DCL/DD/0002 411--8111--905 Preliminary 01.
Nortel Networks Confidential 41 Figure 20 Data flow of the CCM Note: This figure describes the complete configuration (available for future versions).
42 Nortel Networks Confidential GPSAM (GPS and Alarm Module) description The GPSAM is located on the right side of the iBTS digital shelf. UMT/DCL/DD/0002 411--8111--905 Preliminary 01.
Nortel Networks Confidential 43 Hardware description Figure 21 Front view of the GPSAM About the iBTS
44 Nortel Networks Confidential The GPSAM is a single module located on the right--hand side of the iBTS digital shelf.
54 Nortel Networks Confidential Hardware description of the RF block This section describes the modules of the RF block: DDM (Dual Duplexer Module) MCPA (Multi Carrier Power Amplifier) optional TMA (Tower Mashead Amplifier) UMT/DCL/DD/0002 411--8111--905 Preliminary 01.
Nortel Networks Confidential 55 DDM (Dual Duplexer Module) The DDMs are located in the DDM shelf which houses three DDMs. The DDM is used in outdoor or indoor configurations.
56 Nortel Networks Confidential Front panel description The front panel of the DDM has two corporate leds indicating the DDM status: Green rectangular LED Red triangular LED Status OFF OFF Sleep, unpowered or not inserted ON ON Power up self--test underway ON OFF Module should not be removed ON BLINK Module is partially faulty OFF ON Module may be removed, alarm state OFF BLINK Module is waiting for Boot One two position switch indicates the functioning mode of the DDM: mode with TMA
Nortel Networks Confidential 57 Digital interface The corresponding connector is a 15--pin D--sub female connector. The digital interface allows communication with the TRM. TRM software is able to detect if a DDM is physically connected to this interface. Power supply The DDM is power supplied by --48 V dc.
58 Nortel Networks Confidential Figure 31 DDM block diagram The DDM includes two dc/dc converters dedicated to the main and diversity branches: one converter supplies TMA and DDM main the other converter supplies TMA and DDM diversity Two VSWR monitors are also included in the DDM: they are able to monitor RF matching between the antenna and the iBTS. UMT/DCL/DD/0002 411--8111--905 Preliminary 01.
Nortel Networks Confidential 59 MCPA (Multi Carrier Power Amplifier) The MCPAs are located in the MCPA shelf which houses up to 6 MCPAs. The present version of the iBTS contains three MCPAs. Hardware description Figure 32 Front view of the MCPA module The front panel of the MCPA module has one led indicating if the MCPA module is operational: the led is green if the module is operational and red if it is not operational.
60 Nortel Networks Confidential The front panel also has one on/off power switch to switch off the input dc supply. All external connections are connected to the MCPA through the front panel. MCPA interface Radio interfaces The front panel has two “RF IN” connectors (SMA 50 : female connector) and one “Transmitter” connector (N female type connector) for RF ouput for radio interface.
Nortel Networks Confidential 61 Figure 33 Functional description of an MCPA (only one sector) About the iBTS
62 Nortel Networks Confidential Figure 34 MCPA functional block diagram UMT/DCL/DD/0002 411--8111--905 Preliminary 01.
Nortel Networks Confidential 63 TMA (Tower Mounted Amplifier) In case the cable length between the iBTS cabinet and the antenna is high, an optional TMA is mounted as near as possible from the antenna system in order to improve sensibility. General description The TMA module allows to decrease the overall noise figure of the system by amplifying the receive signal.The TMA module is a LNA (Low Noise Amplifier).
64 Nortel Networks Confidential Figure 36 TMA block diagram Protection Data and RF lightning protection is performed at the iBTS connectors. Protecting cups provide the TMA connectors with mechanical and environmental protection. The DDMs monitor TMA alarms and report them to the digital shelf through I2C connection. UMT/DCL/DD/0002 411--8111--905 Preliminary 01.
Nortel Networks Confidential 65 TMA system overview The optional TMA is a double UMTS TMA module.
Nortel Networks Confidential 107 TRM functional description Generalities The TRM contains the transmit/receive circuitry for three transmit chains and six receive chains. It performs: modulation and demodulation clock recovery and synchronization digital--analog and analog--digital conversion up and down frequency conversion These functions are performed with the digital and radio boards.
108 Nortel Networks Confidential Digital TRM board (dTRM) The digital board functions are the following: reception of (up to) six transmit signals from the CCM reception of the six signals from the antennas (main and diversity) recovery and distribution of the clock control and monitoring of the radio modules (TRX, MCPA, DDM) supply voltages for radio board Radio TRM board (rTRM) The radio board performs the following functions: in the downlink path x digital--to--analog conversion x frequency up--convers
Nortel Networks Confidential 109 The receive channelizer receives the six A/D converter signals. It processes the data and transmits them to the CCM. Other functions The TRM also performs the clock generation and recovery operation. The clock is recovered from the link with the CCM and sent to the rTRM board. This board generates the clock signals for the A/D converters of the receiver branch and the A/D converters of the transmitter branch.
110 Nortel Networks Confidential The dTRM Rx and Tx data processing functions are mainly implemented in the processor of the dTRM and in the channelizers. The dTRM board includes six TX channelizers. Each of them is able to support one UMTS channel, and they can be put in cascade. The transmit possibility is three 3--carrier signals. On the Rx side, the dTRM board allows the reception of up to six single carrier signals.
Nortel Networks Confidential 111 Figure 65 Block diagram of the rTRM receive part About the iBTS
116 Nortel Networks Confidential Radio interface The radio interface consists of six RF ports which correspond to the connection to main and diversity antenna for three sectors. The frequency--dependent DDM module is compatible with the standard UMTS bands: 2110--2170 MHz for downlink 1920--1980 MHz for uplink The impedance of the radio interface is 50 :.
