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Channel Measurements

10

Channel Measurements

The RBS supports:

•

Active Channel Measurements, that is. quality and signal strength
measurements on active uplink dedicated channels.

•

Idle Channel Measurements, that is. signal strength measurements
on idle uplink dedicated channels.

10.1

References

/GSM:08.58/

GSM 08.58 (phase 2) version 4.7.0

/GSM:05.08/

GSM 05.08 (phase 2) version 4.12.0

/GSM:05.02/

GSM 05.02 (phase 2) version 4.4.2

Whenever a reference is made to a function described in another chapter,
please refer to the table of contents to find the appropriate chapter.

10.2

Concepts

RX Reference Point

Defined as the point where the RX antenna
signal crosses the RBS border, that is the
connector for the antenna feeder.

Reporting Period

TDMA frames used for measurements, as
defined in /GSM 05.08:8.4/.

RXLEV

Measure of signal strength as defined in /
GSM 05.08:8.1.4/.

RXLEV_FULL

RXLEV measured over a whole SACCH
multiframe.

RXLEV_SUB

RXLEV measured over a subset of a
SACCH multiframe.

RXQUAL

Measure of signal quality as defined in /
GSM 05.08:8.2.4/.

RXQUAL_FULL

RXQUAL measured over a whole
SACCH multiframe.

RXQUAL_SUB

RXQUAL measured over a subset of a
SACCH multiframe.

10.3

Functions

10.3.1

Active Channel Measurements

By means of the basic measurement reporting procedure /
GSM:08.58:4.5.1/, the RBS performs quality and signal strength
measurements on all active uplink dedicated channels. Measurements
on channel combinations, (i), (ii), (v) and (vii) are supported, /
GSM:05.02:6.4/.

EN/LZT 123 2697

R5A

1998-08-13

101 (306)

© Ericsson Radio Systems AB

— All Rights Reserved —

Содержание CME 20 R6.0

Страница 1: ...CME 20 R6 0 CMS 40 R2 CME 20 R6 1 CMS 40 R3 RBS 2301 RBS 2302 Reference Manual EN LZT 123 2697 R5A...

Страница 2: ...E Reference Manual Reference Manual Ericsson Radio Systems AB All Rights Reserved EN LZT 123 2697 R5A 1998 08 13 1 306 Ericsson Radio Systems AB All Rights Reserved...

Страница 3: ...Due to continued progress in methodology design and manufacturing the contents of this document are subject to revision without notice 2 306 EN LZT 123 2697 R5A 1998 08 13 Ericsson Radio Systems AB Al...

Страница 4: ...ration GSM 900 MHz M9d_2 2 28 3 7 Basic Configuration GSM 900 MHz M9d_1 2 30 3 8 Basic Configuration GSM 1800 MHz M18d_2 2 31 3 9 Basic Configuration GSM 1800 MHz M18d_1 2 33 3 10 Basic Configuration...

Страница 5: ...73 6 1 Terminology 73 6 2 General 73 6 3 Product Architecture 74 6 4 Configurations 75 6 5 Combinations 76 6 6 Interface and Connection 76 6 7 Product Requirements 79 7 Broadcast 91 7 1 References 91...

Страница 6: ...nction 111 13 4 Operational Conditions 112 14 Mode Modify 113 14 1 References 113 14 2 Function 113 14 3 Operational Conditions 114 15 Mobile Station Power Control 115 15 1 References 115 15 2 Functio...

Страница 7: ...6 20 4 Operational Conditions 137 21 Restart and Recovery 139 21 1 Concepts 139 21 2 Functions 140 21 3 Operational Conditions 142 22 Function Change 143 22 1 Concepts 143 22 2 Functions 144 22 3 Oper...

Страница 8: ...1 References 169 28 2 Concepts 169 28 3 Functions 170 28 4 Operational Conditions 176 29 External Alarms 177 29 1 Concepts 177 29 2 Function 177 29 3 Operational Conditions 178 30 Power Supply 179 30...

Страница 9: ...References 217 35 2 Concepts 217 35 3 Functions 218 35 4 Operational conditions 227 36 Common Control Channel Handling 229 36 1 References 229 36 2 Function 229 36 3 Operational Conditions 233 37 Spee...

Страница 10: ...Operation Mast Mounted Equipment 33 C 45 C 281 42 Product Safety Requirements RBS 2000 285 42 1 References 285 42 2 Product Safety 285 43 Building Practice Requirements RBS 2000 287 43 1 Fire Resistan...

Страница 11: ...Reference Manual 45 Glossary 297 10 306 EN LZT 123 2697 R5A 1998 08 13 Ericsson Radio Systems AB All Rights Reserved...

Страница 12: ...ration Specifications for the basestations and complementary products The chapters describes the architecture and specifies the characteristics and performance of each product Function Specifications...

Страница 13: ...xx xxx xxx xxx xx xxx xxx xxxx xx x x x x xxxx xxx xxxx xxx xxx xxx xxx xxx xxx xxx xx xxx xxx xxxx xxx x x x xxxx xxx xxxx xxx xxx xxx xxx xxx xxx xxx xx xxx xxx xxxx xxx x x x xxxx xxx xxxx xxx xxx...

Страница 14: ...he RBS 2302 added 5 Product Specification for RBS 2302 A new chapter added 6 Product Specification for Power and Battery Cabinet A new chapter added 12 Encryption 12 2 3 Section Encryption Mode Change...

Страница 15: ...Preface This page is intentionally left blank 14 306 EN LZT 123 2697 R5A 1998 08 13 Ericsson Radio Systems AB All Rights Reserved...

Страница 16: ...converts AC mains to 24 V and 48 V It includes battery backup for RBS and AAU R1P1A1RL1PL1AL1 M1 Configuration with 1 RBS 1 PBC 1 AAU 1 RLPU 1 PLPU 1 ALPU and optional 1 Mini Link RBS 2302 RBS 2302 is...

Страница 17: ...igure 2 3 Configuration 2 3 1 Site Configurations RBS 2302 Configurations P0035018 RBS 2302 Feeders to passive antenna Transmission Ext alarms AC Mains Figure 2 2 TRX R1 P0035019 RBS 2302 Feeders to p...

Страница 18: ...AC Mains T X L bus RBS 2302 Feeders to passive antenna Ext alarms AC box Figure 4 6 TRX R3 RBS 2302 Configurations with backup P0035020 RBS 2302 Feeders to passive antenna Transmission Ext alarms PBC...

Страница 19: ...alarms Figure 6 Extended backup 4 TRX R2P2 P003522 PBC1 AC box AC Mains Alarms Ext alarms Transmission RBS 2302 PBC2 T X L bus DC 24V PBC3 Alarms DC 24V RBS 2302 RBS 2302 Ext alarms Alarms DC 24V Feed...

Страница 20: ...55 C Configurations P0035014 AC box Ext alarms Transmission Alarms RBS fan unit Feeders to passive antenna AC Mains RBS 2302 Figure 8 2 TRX 55 C R1 RF1 EN LZT 123 2697 R5A 1998 08 13 19 306 Ericsson R...

Страница 21: ...Site Configurations RBS 2000 Micro This page is intentionally left blank 20 306 EN LZT 123 2697 R5A 1998 08 13 Ericsson Radio Systems AB All Rights Reserved...

Страница 22: ...on s GSM System The BSS Base Station System contains two functional entities The BSC Base Station Controller handles the radio related functions such as hand over management of the radio network resou...

Страница 23: ...ARP is the feeder connector on the RBS The AAU V ARP is the test connector after the network that connects the outputs from different PAM s This network is used for test purposes only 1 V Virtual 3 2...

Страница 24: ...Antenna H Active Antenna Highway Congifuration X Basic CDU type M M Microbase RBS F Frequency Band 9 18 19 9 900 MHz 18 1800 MHz 19 1900 MHz option d d Duplexer included in CDU A No of Antenna Ports...

Страница 25: ...liance with GSM 05 05 4 1 2 for GSM 900 and GSM 1800 and PCS 5 3 3 for GSM 1900 When two or more transmitters are combined to one antenna the transmitters must be operated with a minimum of 400 kHz se...

Страница 26: ...s the operating frequency of one of the receivers in the RBS Note In RBS 2301 the receiver sensitivity will be decreased by 1 dB when a third order transmitter intermodulation product coincides in fre...

Страница 27: ...t the 3 dB point Min 180 at the 10 dB level Vertical Max 75 at the 3 dB point The antenna is able to handle a continuous output power of 10 W GSM 1800 GSM 1900 For sector antennas the beamwidth is spe...

Страница 28: ...onfigurations are supported Table 4 RBS 2302 Supported Configurations No Cab Config band GSM 900 GSM 1800 GSM 1900 1 M9d_2 2 x 2 M9d_4 4 x 3 M9d_6 6 x 1 M9d_1 2 x 1 M18d_2 2 x 2 M18d_4 4 x 3 M18d_6 6...

Страница 29: ...rs 2 No of antennas 2 Antenna configuration TX RX TX RX 3 6 2 Capacity M9d_2 2 The capacity is defined at the Tx and Rx reference points marked with X Capacity Radio Transmission The output power with...

Страница 30: ...r The corresponding sensitivity level with Omnidirectional antenna is 103 dBm or better 3 6 4 Capacity M9d_2 2 with Integrated Sector Antenna The typical antenna gain for the sector antenna is 6 dBi f...

Страница 31: ...f antennas 1 Antenna configuration TX RX Loss TRX TX Reference point Max 4 5 dB in each output input Limitations No RX diversity 3 7 2 Capacity M9d_1 2 with Multicasting Box The capacity is defined at...

Страница 32: ...rs 2 No of antennas 2 Antenna configuration TX RX TX RX 3 8 2 Capacity M18d_2 2 The capacity is defined at the Tx and Rx reference points marked with X Capacity Radio Transmission The output power wit...

Страница 33: ...The corresponding sensitivity level with Omnidirectional antenna is 105 dBm or better 3 8 4 Capacity M18d_2 2 with Integrated Sector Antenna The typical antenna gain for the sector antenna is 8 5 dBi...

Страница 34: ...of antennas 1 Antenna configuration TX RX Loss TRX TX Reference point Max 4 5 dB in each output input Limitations No RX diversity 3 9 2 Capacity M18d_1 2 with Multicasting Box The capacity is defined...

Страница 35: ...rs 2 No of antennas 2 Antenna configuration TX RX TX RX 3 10 2 Capacity M19d_2 2 The capacity is defined at the Tx and Rx reference points marked with X Capacity Radio Transmission The output power wi...

Страница 36: ...ter The corresponding sensitivity level with Omnidirectional antenna is 105 dBm or better 3 10 4 Capacity M19d_2 2 with integrated Sector Antenna The typical antenna gain for the sector antenna is 9 d...

Страница 37: ...of antennas 1 Antenna configuration TX RX Loss TRX TX Reference point Max 4 5 dB in each output input Limitations No RX diversity 3 11 2 Capacity M19d_1 2 with Multicasting Box The capacity is define...

Страница 38: ...No antenna supervision VSWR No RF cable supervision No expansion possibility The RBS is designed to fulfil applicable parts of the GSM and JTC specifications The weather proof cabinet and design make...

Страница 39: ...red to one cell or 7 7 traffic channels if configured to two cells is characterized by low need for preventive maintenance has high MTBF has versions for the different system standards GSM 900 GSM 180...

Страница 40: ...enance TCB Transceiver Control Board The TCB 2 per RBS includes equipment related to signal processing for up to two radio carriers TXU Transmitter Unit The TXU 2 per RBS contains equipment for transm...

Страница 41: ...uipment Heater to heat the RBS at low temperature Battery The battery is an internal entity and is replaceable without disturbing traffic handling Connection Unit The connection unit contains componen...

Страница 42: ...larm G 703 G 703 G 703 G 703 Ext alarm AC Power TX TX RX RX TX RX A Duplex TX RX B RX A RX A RX B RX B LVF PSU Connection unit Heater Battery AC power AC power alarm FU RXDA RXU TXU Distribution panel...

Страница 43: ...ystem Sun shield The following optional colours are available for the front sun shield NCS S3010 G80Y Olive green NCS S2020 R70B Sky blue NCS S2030 Y40R Brick red NCS S2040 Y20R Ochre NCS S1010 Y20R L...

Страница 44: ...nts Traffical capacity 2 TRX Encryption A5 1 A5 2 Transport Network Interface 1 5 Mbit s 100 Ohm 2 0 Mbit s 75 Ohm 2 0 Mbit s 120 Ohm Filter Duplex Integral Antennas The following selection are availa...

Страница 45: ...so that each RBS uses its port A towards the BSC and port B towards the next RBS That RBS is connected in the same way with port A towards the previous RBS and indirectly the BSC and port B towards th...

Страница 46: ...ral antennas Cables and connectors are included these connection are placed on the cabinet Transmission Type of connections alternative 1 Coax Cable 75 Ohm 2 100 120 Ohm Earthing Central earth termina...

Страница 47: ...ernal alarm One or more external alarm active Buttons CPU reset Local remote mode Test Operation initiation Switches Battery AC Mains Barcodes Signs The bar code sign for product identification is rea...

Страница 48: ...ithout disturbing the RBS function 4 7 3 Dimension and Weight Volume The total volume of a complete RBS site without cabling 33 l Size HxWxD 535x408x160 mm without integral antennas HxWxD 535x408x210...

Страница 49: ...t Operation The RBS is designed to endure the requirement for outdoor mast mounted equipment Temperature range 33 45 C For details see Section Environmental Capabilities RBS 2301 Solar Radiation The R...

Страница 50: ...f the RBS is handled by a combination of Natural convection with the help of cooling fins Conductional heating Heating Capacity The system have the capacity to heat the RBS from 33 C to starting condi...

Страница 51: ...d to at least 80 of its capacity within 15 hours For longer backup time an external UPS may be used 4 7 8 Type Approval Type Approval Standard The product fulfils the required type approvals from GSM...

Страница 52: ...the idea of a quick and smooth installation scenario the RBS installation work can be divided in to two steps Preinstallation Installation of the Mounting Base antennas and all necessary cabling AC ma...

Страница 53: ...tion 0 4 m back to back Free space is required around the RBS for installation and maintenance For a simple installation following distances are recommended Front 1 0 m Side 0 25 m Top 0 5 m Bottom 0...

Страница 54: ...ification for RBS 2301 4 8 Future Expansion 4 8 1 Future Expansion Possibilities Datacommunication i e 14 4 kbit s and GPRS CS 2 EN LZT 123 2697 R5A 1998 08 13 53 306 Ericsson Radio Systems AB All Rig...

Страница 55: ...Product Specification for RBS 2301 This page is intentionally left blank 54 306 EN LZT 123 2697 R5A 1998 08 13 Ericsson Radio Systems AB All Rights Reserved...

Страница 56: ...or a shopping mall as well as fill in coverage The main focus with this product is to reduce site cost and make it easier for operators to find sites which will ensure operator profitability of a micr...

Страница 57: ...city two transceivers giving total of 15 traffic channels if configured to one cell The RBS 2302 may be configured with up to six transceivers in one cell by adding extra RBS 2302 as extension cabinet...

Страница 58: ...by one person 5 3 Product Architecture 5 3 1 Main Physical Units Mountingbase Sector antenna omni radome antenna Interface box Interface board Transmission filter board Cabinet Connection board Insta...

Страница 59: ...Transceiver Control Board The TCB 2 per RBS includes equipment related to signal processing for up to two radio carriers TXU Transmitter Unit The TXU 2 per RBS contains equipment for transmission on o...

Страница 60: ...ction unit contains components for lightning and EMC protection It also includes fuses AC mains and battery switch as well as plinths for the external interfaces except for antenna feeders Distributio...

Страница 61: ...Encryption A5 1 A5 2 Transport Network Interface 1 5 Mbit s 100 Ohm 2 0 Mbit s 75 Ohm 2 0 Mbit s 120 Ohm Filter Duplex It is possible to equip the RBS with either external antennas integral antennas...

Страница 62: ...ations Transmission It is possible to change the door on the installation box to a wider door with a modem to support HDSL ISDN or some other protocol Extended temperature range It is possible to exte...

Страница 63: ...and stand alone mode The configuration is performed by means of the OMT When used in stand alone mode PCM port A is connected to the BSC In this mode PCM port B cannot be used When used in linear casc...

Страница 64: ...gland capacity 1 times 8 19mm External Battery Backup Type of connections The adapter must fit the battery compartment of the RBS External Alarms Type of connections Screw terminal for 16 x max 1 5 mm...

Страница 65: ...b receptacle female Extended OMT port Type of connections 9 pin D sub female Maximum cable length 50 m Cable gland capacity 1 x 5 9 mm 5 7 3 Test Interface The RBS is equipped with test ports for conn...

Страница 66: ...nnected not connected Barcode Sign The barcode sign for product identification is readable without disturbing the RBS function 5 8 Product Requirements 5 8 1 Appearance Ericsson products are designed...

Страница 67: ...adable without disturbing the RBS function Locks The installation box door is equipped with a lock which can be exchanged if neccesary 5 8 3 Dimension and Weight Volume The total volume of a complete...

Страница 68: ...net is designed to be placed on the ground during installation and maintenance work 5 8 5 Environment Operation The RBS meets the following requirement for outdoor mast mounted equipment Temperature r...

Страница 69: ...tem has the capacity to heat the RBS from 33 C to starting conditions within 30 minutes 15 C to starting conditions within 15 minutes The above only applies if the environmental conditions are no wind...

Страница 70: ...on RBS 2000 Micro 5 8 8 Type Approval Type Approval Standard The RBS 2302 fulfils the required type approvals from GSM 11 20 or GSM 11 21 standard JTC standard FCC rules and regulations According to r...

Страница 71: ...n oscillator 3 years 5 8 10 Installation A quick and easy installation procedure is provided If the installation preconditions are met the RBS can be installed in less than 30 minutes A minimum of too...

Страница 72: ...ernal cables Site Installation Requirement Free space is required around the RBS for installation and maintenance For a simple installation the following distances are recommended Front 1 0 m Side 0 2...

Страница 73: ...Product Specification for RBS 2302 This page is intentionally left blank 72 306 EN LZT 123 2697 R5A 1998 08 13 Ericsson Radio Systems AB All Rights Reserved...

Страница 74: ...ipment Link Equipment is used to establish contact with the BSC if there is no fixed network between the RBS and the BSC Second PBC A second PBC is used in configurations which require two AAUs connec...

Страница 75: ...and length as the micro RBS but the rear sun shield is modified to achieve the additional volume needed to fit the batteries 6 3 Product Architecture 6 3 1 Main Physical Units P003439A Front sunshiel...

Страница 76: ...as a base for the Battery Cabinet Sun shield The Sun shields protect the PBC from sun wind rain and snow 6 4 Configurations 6 4 1 Options Options are configurations that require additional hardware A...

Страница 77: ...C Mains Type of connections Screw terminal for 3 x max 2 5 mm Cable gland capacity 1 times 10 5 14 mm Data DC port Type of connections Data and 48 V Cable gland capacity 1 times 14 16 mm Data Type of...

Страница 78: ...1 5 mm Cable gland capacity 1 times 7 5 9 5 mm 24 V RBS 2 Type of connections Screw terminal for 2x max 1 5 mm Cable gland capacity 1 times 7 5 9 5 mm 48 Volt DC The PBC supplies two regulated DC vol...

Страница 79: ...att Power D1 D2 D3 Figure 30 MMI Interface Indicators LEDs Colours Green Operational Green and red Warning Red Fault Display Display 1 Unit number Display 2 Alarm severity Display 3 Error code Buttons...

Страница 80: ...nit number as follows 0 PBC 1 Antenna part 1 2 Antenna part 2 3 Antenna part 3 4 5 Feeder A 6 Feeder B 7 Installation faults Antenna part 2 and 3 are used if the antenna consists of more than one unit...

Страница 81: ...ote The alarms Installation fault Output power off and FDU attenuators set to max are only used during installation Operator Control Buttons The buttons are used together with the display to initiate...

Страница 82: ...he two 24 V outputs are overloaded for example the current is outside specified value Cease condition The load must be disconnected and the current must be within specified values Alarm severity Warni...

Страница 83: ...Action None Overtemperature active Raise condition OvertempErature in the PSU the battery unit or the DC DC supervisor Cease condition When the internal tempErature has returned Alarm severity Warnin...

Страница 84: ...ceable units Battery Cabinet Mounting base Installation box cover Interface box Sun shields Batteries Mounting plate Mast pole fixture Lightning protection unit Protection Cover Labels All signs are p...

Страница 85: ...t Package Material The package material is recyclable Handling Robustness The PBC main cabinet is designed to accept intermediate placing on the ground during installation and maintenance work 6 7 7 E...

Страница 86: ...ction of the PBC is handled by a combination of Natural convection using cooling fins Conductional heating Battery Heating Capacity The system delivers DC to the external users independent of temperat...

Страница 87: ...nt 4 0 A Link Nominal 54 1 V range 42 8 60V Nominal load current 0 6 A Power Consumption Regarding Power Consumption figures see chapter General Specification for RBS 2000 Micro Site Configuration Bat...

Страница 88: ...g Phase 2 GSM requirements according to ETS 300 342 3 6 7 11 Dependability Technical Lifetime The PBC is designed for a technical lifetime of 20 years 24 hours operation Preventive Maintenance The PBC...

Страница 89: ...n scenario the PBC installation work can be divided in to two steps Preinstallation Installation of the Mounting Base antennas and all necessary cabling AC mains and alarms Installation and Commission...

Страница 90: ...and Battery Cabinet 6 7 13 Production The concept for the PBC supports production according to customer choice from the ordering information plan EN LZT 123 2697 R5A 1998 08 13 89 306 Ericsson Radio...

Страница 91: ...Product Specification for Power and Battery Cabinet This page is intentionally left blank 90 306 EN LZT 123 2697 R5A 1998 08 13 Ericsson Radio Systems AB All Rights Reserved...

Страница 92: ...GSM 05 10 phase2 version 4 5 0 GSM 08 58 GSM 08 58 phase2 version 4 7 0 and Amendment Request A006r1 Whenever a reference is made to a function described in another chapter please refer to the table...

Страница 93: ...CH_INFORMATION message received from the BSC New System Information received is used in BCCH transmissions when scheduled Transmission of a specific System Information message can be stopped by a BCCH...

Страница 94: ...smissions when scheduled Transmission of a specific System Information message can be stopped by a SACCH_FILLING message GSM 08 58 8 5 1 on order from the BSC 7 3 5 Broadcast of System Information on...

Страница 95: ...l change System Information message type for every transmission occasion according to Table 12 on page 94 Table 11 SACCH System Information schedule Stored System Information Transmission order 5 5bis...

Страница 96: ...rrection burst Synchronisation burst Dummy burst Access burst 8 2 2 Supported Logical Channels The following logical channels are supported GSM 05 02 3 BCCH Broadcast Control Channel CBCH Cell Broadca...

Страница 97: ...FCCH SCH BCCH CCCH SDCCH 4 0 1 3 SACCH C4 0 1 3 CBCH vii a SDCCH 8 0 7 SACCH C8 0 7 b SDCCH 8 0 1 3 7 SACCH C8 0 1 3 7 CBCH Note CCCH PCH RACH AGCH Note Channel combinations v and vii type b are vali...

Страница 98: ...ls 8 2 8 Burst Assembly Burst Assembly is performed according to GSM 05 02 5 2 3 Normal bursts GSM 05 02 5 2 4 Frequency correction bursts GSM 05 02 5 2 5 Synchronisation bursts GSM 05 02 5 2 6 Dummy...

Страница 99: ...Physical Channel Handling This page is intentionally left blank 98 306 EN LZT 123 2697 R5A 1998 08 13 Ericsson Radio Systems AB All Rights Reserved...

Страница 100: ...er please refer to the table of contents to find the appropriate chapter 9 2 Concepts Nominal Power The power level defined during configuration of the RBS TRXs 9 3 Functions 9 3 1 Base Station Power...

Страница 101: ...used on all timeslots An attempt to change the BS Power level for a channel on a BCCH carrier is accepted but has no effect 9 3 2 Base Station Power Control for an Active Channel By means of the TRANS...

Страница 102: ...is the connector for the antenna feeder Reporting Period TDMA frames used for measurements as defined in GSM 05 08 8 4 RXLEV Measure of signal strength as defined in GSM 05 08 8 1 4 RXLEV_FULL RXLEV...

Страница 103: ...CH Data 10 SID 4 SACCH v vii All SDCCH and SACCH frames 8 SDCCH 4 SACCH Same frames as for RXLEV_FULL and RXQUAL_FULL The SID frames for the TCH channels are defined in GSM 05 08 8 3 Results from chan...

Страница 104: ...first value has been calculated and thereafter when the calculated average value is classified into a new Interference Level Band 10 4 Operational Conditions The measurements of R M S signal levels f...

Страница 105: ...Channel Measurements This page is intentionally left blank 104 306 EN LZT 123 2697 R5A 1998 08 13 Ericsson Radio Systems AB All Rights Reserved...

Страница 106: ...12 phase 2 version 4 0 1 GSM 06 22 GSM 06 22 phase 2 version 4 0 0 GSM 06 31 GSM 06 31 phase 2 version 4 0 0 GSM 06 32 GSM 06 32 phase 2 version 4 0 1 GSM 06 41 GSM 06 41 phase 2 version 4 0 0 GSM 06...

Страница 107: ...Link Protocol frame with all E1 bits GSM 04 21 set to 1 is received from the RTC DTX handling speech The usage of downlink DTX on off is indicated in the speech frames and in the idle speech frames to...

Страница 108: ...to handle uplink DTX Channel combinations supported are the same as for DTX downlink see section DTX Downlink above The uplink DTX function for speech is initiated when a frame containing comfort noi...

Страница 109: ...Discontinuous Transmission This page is intentionally left blank 108 306 EN LZT 123 2697 R5A 1998 08 13 Ericsson Radio Systems AB All Rights Reserved...

Страница 110: ...CCH SDCCH 8 ACCH SDCCH 4 ACCH and TN 0 The function is initiated when a CHANNEL_ACTIVATION message GSM 08 58 8 4 1 indicating start of encryption is received from the BSC Access bursts which are recei...

Страница 111: ...of the Mode Modify procedure GSM 08 58 4 2 the BSC orders change of channel mode or encryption mode of an active dedicated channel group Channel numbers supported are described in the section Start En...

Страница 112: ...uency hopping available Baseband hopping Synthesiser hopping 13 1 References GSM 08 58 GSM 08 58 phase 2 version 4 2 0 GSM 05 02 GSM 05 02 phase 2 version 4 3 0 Whenever a reference is made to a funct...

Страница 113: ...CCH frequency can be frequency hopping when baseband hopping is used The following configuration parameters are used for administration of frequency hopping the parameters are used in the frequency ho...

Страница 114: ...of MODE_MODIFY message from BSC Channel Mode Modification The function is initiated when a MODE_MODIFY message GSM 08 58 8 4 9 is received from BSC Any transition between the following full rate chan...

Страница 115: ...be sent before the actual transmission is started If the Mode Modify procedure fails after the MODE_MODIFY_ACKNOWLEDGE message has been sent a CONNECTION_FAILURE_INDICATION GSM 08 58 8 4 4 message is...

Страница 116: ...ferences GSM 04 04 GSM 04 04 phase2 version 4 0 0 GSM 05 02 GSM 05 02 phase2 version 4 3 0 GSM 08 58 GSM 08 58 phase2 version 4 2 0 Whenever a reference is made to a function described in another chap...

Страница 117: ...ation of the MS_POWER_CONTROL message Storage of MS power level Order MS to set the commanded power level Description The function is initiated when an MS_POWER_CONTROL message GSM 08 58 8 4 15 contai...

Страница 118: ...GSM 05 02 phase2 version 4 3 0 GSM 08 58 GSM 08 58 phase2 version 4 2 0 Whenever a reference is made to a function described in another chapter please refer to the table of contents to find the appro...

Страница 119: ...MO function is initiated when a SABM frame link layer connection is received from a MS SMS P P MO messages are transmitted as transparent L3 messages in acknowledged mode on a SAPI 3 link between the...

Страница 120: ...Type field contains a sequence number used to check the order of arrival The correct order of arrival is defined as 0 1 2 3 The SMSCB messages are transmitted in four consecutive multiframes GSM 05 0...

Страница 121: ...Short Message Service This page is intentionally left blank 120 306 EN LZT 123 2697 R5A 1998 08 13 Ericsson Radio Systems AB All Rights Reserved...

Страница 122: ...ion Period defines a time window during which the signal strength relationship between the two diversity channels is observed before any decision regarding a possible disturbance is taken Channel Util...

Страница 123: ...ements on TCH are restricted to the subset of 4 SACCH frames and 8 SID Silence Descriptor TDMA frames as defined in GSM 05 08 The CURiis calculated for the TS during each observation period The SSIiva...

Страница 124: ...ion threshold 96 dBm Minimum channel utilisation ratio 5 Disturbance threshold 12 dB The disturbance filter characteristics will give the time to alarm If 100 of the observation periods causes a distu...

Страница 125: ...Diversity Supervision This page is intentionally left blank 124 306 EN LZT 123 2697 R5A 1998 08 13 Ericsson Radio Systems AB All Rights Reserved...

Страница 126: ...te Hold over operation Supervision of reference source 01_0277B Figure 32 Synchronization function states Short term stability of the timing is achieved by the RBS itself The long term stability of th...

Страница 127: ...nization quality will not be guaranteed and the BSC should disable the RBS so that radio transmission ceases 18 3 Functions 18 3 1 Synchronizing to the Reference Source The RBS has its own short term...

Страница 128: ...nterface as reference LOS Loss Of Signal LOF Loss Of Frame alignment or AIS Alarm Indication Signal detected by the physical interface Illegal high wander The limit is specified in G 823 Illegal high...

Страница 129: ...ration of one timeslot will reconfigure all the others The configuration is carried out by the Functionality Administration function 18 4 Operational Conditions 18 4 1 Synchronizing to the Reference S...

Страница 130: ...function initiation Calls can be established but performance criteria are not fulfilled i e the risk of dropped calls is higher The frequency error is less than 0 5 ppm after 4 minutes The timeout fo...

Страница 131: ...Synchronization This page is intentionally left blank 130 306 EN LZT 123 2697 R5A 1998 08 13 Ericsson Radio Systems AB All Rights Reserved...

Страница 132: ...plexing and Multiple Access on the Radio Path PCS 3 Forward Error Protection Coding and Interleaving PCS 4 Modulation PCS 5 Radio Transmission and Reception PCS 6 Radio Subsystem Link Control PCS 7 Sy...

Страница 133: ...4 RX reference point with integral antenna 19 3 Functions 19 3 1 Radio Reception Radio reception denotes the function to Receive an RF signal and restore the bit stream that constitutes a burst The GS...

Страница 134: ...M 05 05 2 Receivers for the GSM 1900 band operates in the 1900 frequency band 1850 1910 MHz see PCS 5 1 19 4 2 Frequency Hopping The receiver is capable of frequency hopping as defined by the Frequenc...

Страница 135: ...Radio Reception This page is intentionally left blank 134 306 EN LZT 123 2697 R5A 1998 08 13 Ericsson Radio Systems AB All Rights Reserved...

Страница 136: ...CS 1 PCS 8 are chapters in the document Volume 1 PCS 1900 Physical Layer 1 Specification The specification is labelled JTC AIR 94 08 01 231R3 PCS 1 Physical Layer Overview PCS 2 Multiplexing and Multi...

Страница 137: ...al antenna the TX reference point is the cabinet output RF connector P003053A X TX ref point RBS Border Cabinet Combining system Filtering TX TX Figure 36 TX reference point with integral antenna 20 3...

Страница 138: ...re not affected by the filling level 20 3 4 TX Diversity In order to improve the downlink performance the BTS can be configured for transmitter diversity Two transmitters connected to different antenn...

Страница 139: ...tput power the transmitter is allowed to use Nominal power is defined as the power level at the output of the transmitter which in the Micro Building System corresponds to the Tx ref point The nominal...

Страница 140: ...normally not replaceable in the field but the cabinet will be replaced as a whole CMRU Central Main RU Subclass of Main RU An RBS has only one CMRU DMRU Distributed Main RU Subclass of Main RU A DMRU...

Страница 141: ...se is checked to ensure The database exists The structure is correct If either of these criteria is not fulfilled the restart is suspended pending the loading of a valid database via the OMT A visual...

Страница 142: ...itiated in a DMRU at restart and recovery is summarised below Select Application Software The application software is available even after power on reset Further information is found within the contex...

Страница 143: ...tenance functions related to Restart and Recovery are described in chapter Operation and Maintenance Terminal The visual indicators relevant to Restart and Recovery are described in chapter Operation...

Страница 144: ...minimising the time required for software download Software download while in traffic The RBS can perform download of software without affecting normal operation Traffic is affected only when switchi...

Страница 145: ...ent permits the RBS to operate normally i e executing one version of software while loading a new version of software as a background activity One area of the non volatile memory contains the base app...

Страница 146: ...he internal distribution of software files the RBS informs the BSC that the new software can be activated 22 2 5 Software Start The activation of new software is ordered via the A bis interface When t...

Страница 147: ...Function Change This page is intentionally left blank 146 306 EN LZT 123 2697 R5A 1998 08 13 Ericsson Radio Systems AB All Rights Reserved...

Страница 148: ...Os An EP consists of an initiating message and a response For example an EP may consist of the BSC sending an initiating message CONFIGURE REQUEST and the MO in the RBS responding with a message CONFI...

Страница 149: ...on site or in a repair center Information about the RU can be retrieved via OMT or BSC SO An abstract subclass of MO which provides service functions for a set of MO instances including itself 23 2 Fu...

Страница 150: ...within the permitted range or have permitted values If the AO is enabled parameters that cannot be changed in enabled state must not be changed For certain classes of AO the configuration parameters...

Страница 151: ...range An initial message that fails to meet any of these criteria is rejected If the message is so badly corrupted that it is not recognisable the message is simply ignored A message which meets all o...

Страница 152: ...l of these criteria is forwarded to the function that initiated the EP 23 3 Operational Conditions 23 3 1 Operation and Maintenance The visual indicators relevant to Functionality Administration are d...

Страница 153: ...Functionality Administration This page is intentionally left blank 152 306 EN LZT 123 2697 R5A 1998 08 13 Ericsson Radio Systems AB All Rights Reserved...

Страница 154: ...to compensate for temperature dependencies in the receiver path 24 1 Concepts CMRU Central Main RU Subclass of Main RU An RBS has only one CMRU DMRU Distributed Main RU Subclass of Main RU A DMRU is s...

Страница 155: ...ration locally on site via the local remote mode function An RU in local mode does not have communication with the BSC over the A bis interface and is therefore not in operation On the cabinet there i...

Страница 156: ...calendar time is then distributed internally to the RUs within the RBS 24 2 5 RSSI Temperature Compensation The loss in the receiver path varies with temperature To obtain a more accurate estimate of...

Страница 157: ...cabinet External Alarms yellow Off No external alarms are active On One or more supervised external alarms are active At restart Explicit test of indicators There is one External Alarms indicator per...

Страница 158: ...ry fault indicator per cabinet Test Result TDMRU1 yellow Test Operation is only HW supported the indicator is not used Test Result TDMRU2 yellow Test Operation is only HW supported the indicator is no...

Страница 159: ...Operation and Maintenance Support This page is intentionally left blank 158 306 EN LZT 123 2697 R5A 1998 08 13 Ericsson Radio Systems AB All Rights Reserved...

Страница 160: ...d in the database falls into one of two categories configuration information or history information The database is at least partly accessible to each of the following Other functions within the RBS T...

Страница 161: ...ach external alarm Access BSC and OMT RBS Transmission Interface Configuration Stores configuration information for the transmission interface and TEI for the CMRU Access OMT RBS Configuration Identif...

Страница 162: ...ormation Element This function allows the BTS to read different information elements in the RBS and RU databases Update one Information Element This function allows the BTS to write information elemen...

Страница 163: ...Installation Data Handling This page is intentionally left blank 162 306 EN LZT 123 2697 R5A 1998 08 13 Ericsson Radio Systems AB All Rights Reserved...

Страница 164: ...n each processor before any normal application processes have started The Boot test is restricted to the hardware related to the processor performing the test The following entities are tested during...

Страница 165: ...ntrator becomes full this is detected 26 3 8 Environmental Conditions If the temperature rises above a level where destruction may occur this is detected Local actions are further described in chapter...

Страница 166: ...BSC manages the O M of the RBS via the A bis O M Interface The RBS equipment is seen as MOs by the BSC This is a means of describing the RBS in a functional oriented way and a logical model of the RB...

Страница 167: ...its and mapping them to a high level RUs and MOs and the entire RBS thus taking the complete fault situation into account 27 2 4 Fault Classification Faults detected by an MO are classified according...

Страница 168: ...trolling the RBS 27 2 7 Fault Reporting On the RBS s initiative the BSC is informed of each change in the fault status of the RBS Faults are reported on an MO basis A certain fault can be detected and...

Страница 169: ...Diagnostics and Fault Handling This page is intentionally left blank 168 306 EN LZT 123 2697 R5A 1998 08 13 Ericsson Radio Systems AB All Rights Reserved...

Страница 170: ...rmation reflects the configuration as well as the history of the hardware Within the RBS each RU carries a database The installation database is used by the operator via the OMT by RBS internal functi...

Страница 171: ...28 3 1 User Interface The OMT provides an easy to use graphical user interface Well known hardware units and functions for example a transmitter appear as graphical objects There are a number of oper...

Страница 172: ...the RBS to the OMT Install copy the IDB from the OMT to the RBS Save copy the IDB from the OMT to any file media for example a floppy disk or a hard disk Open copy the IDB from any file media to the O...

Страница 173: ...s are Activated or Not activated The following user functions related to the G 703 2048 kbit s PCM network are available in the OMT Display spare bits display spare bits in timeslot 0 on G 703 values...

Страница 174: ...for one or more traffic channels within one transceiver 1 Switch off QIU 1 1 Facilitates BER measurements according to GSM 11 20 and GSM 05 05 Monitor maintenance data display any of the following da...

Страница 175: ...text comment Define RU HW info define any of the following parameters associated with a passive RU Product number Hardware revision Serial number Free text comment Display RU software revision for a...

Страница 176: ...nd maintenance Further the customer may define his own set of work sessions giving maximum support to his own O M organisation The following user function related to work sessions is available in the...

Страница 177: ...is taken due to the failed connection The connection between the RBS and a remotely connected OMT is established on one PCM timeslot and the maximum transmission rate is 64 kbit s 28 4 Operational Co...

Страница 178: ...he RBS Alarm severity There are two possible severity classifications The classification of a specific external alarm is fixed when defining the external alarm How to handle a severity level is custom...

Страница 179: ...n and Maintenance Support The visual indicators relevant to external alarms are described in chapter Operation and Maintenance Support 29 3 2 Capabilities Table 18 Number of external alarms defined by...

Страница 180: ...the electrical installation are earthed TN power system A power distribution system having one point directly earthed The exposed conductive parts of the installation are connected to that point by pr...

Страница 181: ...g to IEC 950 30 3 2 DC Power Distribution The users are disconnected from the DC power in cases of low system voltage The users are reconnected to the DC power when the system voltage is restored The...

Страница 182: ...d earthed neutral Nominal 200 V 250 V Tolerance 10 Non destruction range phase voltage Permanent 0 V 280 V Overvoltage 10 ms 280 V 300 V AC input frequency Nominal 50 Hz Tolerance 10 AC input current...

Страница 183: ...200 100 V 240 120 V Tolerance 10 Non destruction range line voltage Permanent 0 V 270 V Overvoltage 10 ms 270 V 300 V AC input frequency Nominal 60 Hz Tolerance 8 AC input current Inrush current tota...

Страница 184: ...of the functions described in this chapter 31 1 Concepts External Outside the RBS cabinet Internal Inside the RBS cabinet Normal range Is internal temperature within 5 C to 70 C Safe range Is interna...

Страница 185: ...iation Operational Conditions This function is available down to an external temperature corresponding to the normal condition low limit Description This heating function works with a heating element...

Страница 186: ...e internal temperature is increased by heating to above the lower limit for safe Then the power system and the users are connected The internal temperature is above the upper limit for safe function T...

Страница 187: ...Climate Protection This page is intentionally left blank 186 306 EN LZT 123 2697 R5A 1998 08 13 Ericsson Radio Systems AB All Rights Reserved...

Страница 188: ...e The function Supervision of Transmission Quality monitors the quality of the transmission 32 1 References GSM 08 54 GSM Technical Specification 08 54 All ITU T references refer to the White Book ITU...

Страница 189: ...c4 0 0 1 1 0 1 1 15 E 1 A Sa4 Sa5 Sa6 Sa7 Sa8 CRC 4 Cyclic Redundancy Check ITU T G 704 c1 c2 c3 c4 CRC 4 bits see the section Layer 1 Termination 2048 kbit s below A Alarm bit see the section Layer...

Страница 190: ...rk interface is handled according to GSM 08 54 4 0 0 This includes Physical and electrical characteristics according to ITU T rec G 703 interface at 2048 kbit s 75 ohm and over voltage protection acco...

Страница 191: ...handled according to Section 32 3 1 on page 189 except for the receiver sensitivity and cable type The receiver dynamic range is 0 to 30 dB at 1024 kHz 0 dB 6 0 Vp p 120 ohms twisted pair cables 32 3...

Страница 192: ...ote Alarm Indication UAST UnAvailable STate supervision Fault handling is according to Diagnostic and Fault Handling functionality LOF commences CRC 4 is OFF Three consecutive frame alignment signals...

Страница 193: ...ream and downstream is supervised independently of the other An unavailable state for one direction is declared at the onset of P consecutive SES for the direction of interest These P seconds are cons...

Страница 194: ...is established by taking the number of faulty frame alignment words and dividing them by the total number of checked bits during the BI Base Interval The bit fault frequency is supervised and reported...

Страница 195: ...F At least one frame bit error CRC 4 is ON At least one CRC 4 error LOF alignment LOS Slip AIS A bit equal to 1 from the remote end E bit indication received from the remote end only valid when CRC 4...

Страница 196: ...following events 1 A bit 1 or N1 E bit 0 only valid when CRC 4 is used SES are not counted during unavailable state Both SES counters are reported after each BI UAS and Unavailable State supervision...

Страница 197: ...parameters P and Q Used for defining unavailable state Value range is 5 15 s Default value is 10 s The parameters N1 and N4 Define the threshold numbers for ES and SES Value range and default values...

Страница 198: ...nput AIS is transmitted on PCM B output AIS is transmitted until the alarm state is left When entering and leaving alarm states the alarm filtering time is used AFT 32 4 Operational Conditions 32 4 1...

Страница 199: ...Transmission Interface Handling G 703 2048 kbit s This page is intentionally left blank 198 306 EN LZT 123 2697 R5A 1998 08 13 Ericsson Radio Systems AB All Rights Reserved...

Страница 200: ...The function Supervision of Transmission Quality monitors the quality of the transmission 33 1 References Transmission references ANSI T1 403 1989 AT T T1 5 Service TR 62411 Dec 1990 Bellcore TR NWT...

Страница 201: ...1 7 8 A A C 19 3474 m 1 8 20 3667 1 1 8 21 3860 m 1 8 22 4053 C6 1 8 23 4246 m 1 8 24 4439 1 1 7 8 A B D 1 No channel associated signalling only T column applicable 8 traffic bits in every frame Frame...

Страница 202: ...exactly one CMRU In the RBS 2000 hardware architecture the Distribution Switch is the CMRU 33 3 Functions 33 3 1 DS1 Transmission The function is initiated during restart of CMRU The function can be...

Страница 203: ...sequent action The consequent action for the faults LOF LOS ERATE AIS and UAST downlink is to send RAI patterns 1111111100000000 continuously on the 4 kbit s link to the remote end This is performed f...

Страница 204: ...I 6 4 2 is transmitted The datalink is used for RAI information in both directions See Table 24 on page 200 Frame alignment and CRC 6 procedures according to ANSI TI 403 24 frame ESF Fault supervision...

Страница 205: ...erence source PCM B incoming is used to synchronize PCM A outgoing PCM B incoming is used to synchronize PCM B outgoing Neither PCM A nor PCM B can be used as reference source The free running oscilla...

Страница 206: ...larm Indication Signal Blue Alarm RAI Remote Alarm Indication Yellow Alarm UAST UnAvailable STate supervision Consists of two directions upstream and downstream Fault handling is according to Diagnost...

Страница 207: ...he other Together with the alarm status time information for each direction of UAST is reported to the BSC When UAST commences zero is reported as time information When UAST ceases the time that the U...

Страница 208: ...ncy is performed The bit fault frequency is supervised and reported as the mean bit error ratio in ppm parts per million during the BI Base Interval Disturbance Frequency supervision This supervision...

Страница 209: ...p AIS RAI Two counters for errored seconds exist Both are derived from the downstream PCM port but one is closely connected to downstream faults while the other one is related to upstream faults The d...

Страница 210: ...nd SES is stopped for both directions as soon as at least one of the directions is in the unavailable state An unavailable state for one direction is declared at the onset of P consecutive SES for the...

Страница 211: ...FT RAI The configuration parameter AFT RAI defines the Alarm Filtering Time for the fault supervision function RAI supervision Value range is 50 5000 ms Default value is 125 ms The resolution is 1 ms...

Страница 212: ...k FDL The commands for Payload Loop Back PLB Line Loop Back LLB and Universal command deactivate are supported The commands are used to enable and disable loops within the T1 interface A received AIS...

Страница 213: ...tion to connect a line loopback The rightmost bit is received first 2 The command Line Loopback Deactivate releases the line loop The code word 00111000 11111111 received four times in a sequence will...

Страница 214: ...ease is made after the Alarm Filtering Time AFT has expired The AFT is described in section Supervision of Transmission Faults under paragraph Description and in section Administration The default set...

Страница 215: ...Transmission Interface Handling DS1 1544 kbit s This page is intentionally left blank 214 306 EN LZT 123 2697 R5A 1998 08 13 Ericsson Radio Systems AB All Rights Reserved...

Страница 216: ...for traffic services on A bis 34 3 Function 34 3 1 Layer 2 Link Handling of OML and RSL The link layer used for signalling on the A bis interface between BSC and BTS is established and maintained acc...

Страница 217: ...Terrestrial Link Handling This page is intentionally left blank 216 306 EN LZT 123 2697 R5A 1998 08 13 Ericsson Radio Systems AB All Rights Reserved...

Страница 218: ...efer to the table of contents to find the appropriate chapter 35 2 Concepts Channel A channel is a 16 32 or 64 kbit s connection between two entities connected to the switch see Figure 41 on page 218...

Страница 219: ...rently not used as a terrestrial signalling channel or as a terrestrial traffic channel 35 3 Functions The CDF Channel Distribution Function switches channels between the entities connected to the swi...

Страница 220: ...ork Interface is 31 timeslots between the BSC and BTS for a 2 Mbit s system and 24 timeslots for a 1 5 Mbit s system This corresponds to one PCM line towards the BSC One signalling channel can be swit...

Страница 221: ...one physical link to the BSC uplink It also deconcentrates LAPD messages received on one physical link from the BSC downlink sending them forward to their destinations 01_0301A TeI1 TEI2 TEIN TRX BSC...

Страница 222: ...arded from the queue If the queue still is full the new message is discarded The bit rate for the concentrated channels is limited to 64 kbit s that is LAPD concentration and LAPD multiplexing can not...

Страница 223: ...ng channels plus one set of unoccupied terrestrial channels Thus all unoccupied terrestrial channels are searched in a cyclic way and all configured terrestrial signalling channels are searched contin...

Страница 224: ...is no longer performed on a shared terrestrial signalling channel This is the normal way to terminate this function 35 3 4 Multidrop For an RBS configured for multidrop the function is initiated durin...

Страница 225: ...ny of its sub timeslots are configured in the IS or used for the CF link If for example ICP 7 is used in the IS configuration the whole timeslot 2 is considered to be used by the current RBS Figure 45...

Страница 226: ...rm states LOF LOS or AIS at PCM B input the RBS is considered to be the RBS located at the end of the linear cascade chain presuming that PCM A is not in loop mode It is considered to be so until the...

Страница 227: ...ultidrop connected RBSs are connected so that each RBS uses its port A towards the BSC and port B towards the next RBS The latter RBS is connected in the same way with port A towards the previous RBS...

Страница 228: ...figures PCM A timeslot 23 for either traffic functions subchannels with bitrate other than 64 kbit s 35 4 Operational conditions 35 4 1 Operation and maintenance Not applicable 35 4 2 Capabilities The...

Страница 229: ...Channel Distribution Function This page is intentionally left blank 228 306 EN LZT 123 2697 R5A 1998 08 13 Ericsson Radio Systems AB All Rights Reserved...

Страница 230: ...I and TMSI Scheduled transmission of PAGING_REQUEST messages on PCH Retransmission of PAGING_REQUEST messages on PCH Channel combinations GSM 05 02 6 4 supported iv FCCH SCH BCCH CCCH v FCCH SCH BCCH...

Страница 231: ...08 9 1 18 IMMEDIATE_ASSIGNMENT_EXTENDED GSM 04 08 9 1 19 IMMEDIATE_ASSIGNMENT_REJECT GSM 04 08 9 1 20 For dequeuing priority handling selection of Page Mode transmission and retransmission see Section...

Страница 232: ...messages The queues are handled in a FIFO manner when the first IMSI or TMSI intended for a PAGING REQUEST message is dequeued Packing of Messages IMMEDIATE_ASSIGNMENT messages If possible two IAs que...

Страница 233: ...3 The IMSI TMSI is discarded if it has not been retransmitted within two schedulings of its paging group BS_PA_MFRMS 3 The IMSI TMSI is discarded if it has not been retransmitted within one scheduling...

Страница 234: ...CHANNEL_REQUIRED messages to BSC The RBS supports Detection of CHANNEL_REQUESTS on RACH Transmission of CHANNEL_REQUIRED messages to BSC The channel request is coded as AB access bursts GSM 05 02 5 2...

Страница 235: ...R queue 10 36 3 3 CCCH Dequeuing and Transmission A number of stacks are used for message retransmission One IA stack number of elements 4 Paging stacks one stack paging queue number of elements stack...

Страница 236: ...Timeslot Resource The functional entity responsible for all Air interface functions for one Air timeslot The Air timeslot resource can be seen as 1 8 of a TRX Terrestrial Traffic Channel Physical chan...

Страница 237: ...n over A bis is terminated when a traffic channel is enabled on the air timeslot resource 37 3 2 Terrestrial Link Supervision The function Terrestrial Link Supervision TLS supervises a terrestrial lin...

Страница 238: ...el mode is signalling Idle pattern is transmitted Idle pattern is generated as specified in GSM 08 54 This function supervises the downlink TRAU frames The synchronization bits have to be correct and...

Страница 239: ...Quality Improvements Full rate speech is either terminated by the RF Channel Release function or the Mode Modify function when Data or Signalling services are requested Subjective Speech Quality Impro...

Страница 240: ...tion of data in the RTC the RBS issues TRAU frames of type Idle Speech and channel type Full Rate according to GSM 08 60 The rate adaptation is split up between RTC and RBS and is performed as describ...

Страница 241: ...ditional delay due to the measuring method as described in GSM 11 20 7 2 6 table 7 2b 37 4 2 Full Rate Data Transparent data services supported 9 6 kbits s 4 8 kbits s 2 4 kbits s 1 2 kbits s 1200 75...

Страница 242: ...Non transparent data services supported 4 8 kbits s The round trip delay for a half rate data channel introduced by the BTS is Less than 284 ms for TCH H4 8 and TCH H2 4 this includes TCH H1 2 TCH H1...

Страница 243: ...Speech and Data Services This page is intentionally left blank 242 306 EN LZT 123 2697 R5A 1998 08 13 Ericsson Radio Systems AB All Rights Reserved...

Страница 244: ...ted signal from a reference MS The reference MS is assumed to be positioned at zero distance from the RBS operating under static channel conditions and having zero timing advance Ignored Optional elem...

Страница 245: ...4 i TCH F FACCH F SACCH TF ii TCH H 0 1 FACCH H 0 1 SACCH TH 0 1 v FCCH SCH BCCH CCCH SDCCH 4 0 3 SACCH C4 0 3 vii SDCCH 8 0 7 SACCH C8 0 7 Supported channel numbers GSM 08 58 9 3 1 Bm ACCHs Associate...

Страница 246: ...on for all activation types Channel Identification Ignored BS Power Optional MS Power Required BS Power Parameters Rejected MS Power Parameters Rejected Immediate Assignment The Activation for Immedia...

Страница 247: ...e is correct and the resources required are available the RBS sends a CHANNEL_ACTIVATION_ACKNOWLEDGE message to the BSC GSM 08 58 8 4 2 Otherwise a CHANNEL_ACTIVATION_NEGATIVE_ACKNOWLEDGE GSM 08 58 8...

Страница 248: ...nnel combinations supported are defined in section Channel Activation above The RBS measures the access delay of handover accesses received This information is included in the PHYSICAL_INFORMATION mes...

Страница 249: ...stop transmission on SACCH of the addressed channel group Channel combinations and numbers supported are defined in section Channel Activation above 38 3 6 Link Establish Indication By means of the LI...

Страница 250: ...58 3 2 the BSC requests the RBS to establish a link layer connection on the air interface in multiframe mode Channel combinations supported are defined in section Channel Activation above The Link Es...

Страница 251: ...PARENT MESSAGE RECEPTION procedure GSM 08 58 3 6 transparent messages are received from MS and transmitted to the BSC Transparent transmission in acknowledged mode requires that multiframe mode GSM 08...

Страница 252: ...g The following channels are supported BCCH CCCH Downlink Unacknowledged mode is supported SDCCH Acknowledged and unacknowledged modes are supported FACCH Acknowledged and unacknowledged modes are sup...

Страница 253: ...t from MS is better than 99 99 With a random RF input the probability of a false handover detection within 1 0 second after the channel is activated for asynchronous handover is less than 10 6 The HAN...

Страница 254: ...t in the response A mobile station is required to respond to a received message within 47 9 ms on FACCH F counting from the last burst in the received message to the first burst in the response On all...

Страница 255: ...Call Control This page is intentionally left blank 254 306 EN LZT 123 2697 R5A 1998 08 13 Ericsson Radio Systems AB All Rights Reserved...

Страница 256: ...N 50 081 1 January 1992 Electromagnetic compatibility Generic emission standard Part 1 Residential commercial and light industry 5 EN 50 082 1 January 1992 Electromagnetic compatibility Generic immuni...

Страница 257: ...ne outdoor systems Cable or lead longer than 1 meter intended for connection to units located outside the cabinet Telecommunication line Cable intended for connection to a public network Enclosure Por...

Страница 258: ...rmance Criteria CR Continuous phenomena applied to Receivers A communication link shall be established at the start of the test and maintained during the test For the system the RXQUAL as defined in G...

Страница 259: ...ted for each test For emission capabilities all equipment in the RBS was enabled during verification to create the worst emission case EMC directive The EMC capabilities of the RBS fulfills the mandat...

Страница 260: ...Basic standard EN 55 022 Limit Class B Table 34 Magnetic field emission Limit standard VDE 0878 Magnetic emission part 1 Limit Class B 39 3 4 Conducted Immunity on AC Input Power Ports Table 35 Fast...

Страница 261: ...eria A for a complete system 39 3 5 Immunity on Telecommunication and External Signal Lines Table 39 Fast transient test Basic standard IEC 1000 4 4 Test level 2 kV common mode between line and cabine...

Страница 262: ...level 10 V rms Performance Criteria A for a complete system Criteria CT for transmitter units Criteria CR for receiver units 39 3 6 Radiated Immunity of Enclosure Port Table 44 Immunity of continuous...

Страница 263: ...ischarges 15 kV Contact discharges 8 kV Performance Criteria B Limit standard ETS 300 342 2 Test level Air discharges 8 kV Contact discharges 4 kV Performance Criteria A for a complete system Criteria...

Страница 264: ...GSM11 24 4 prETS 300 342 3 October 1997 Radio Equipment and System RES Electro Magnetic Compatibility EMC for Digital cellular telecommunication system Part 3 Base station radio and ancillary equipme...

Страница 265: ...st transient burst immunity test 13 EN 61 000 4 5 1995 Electromagnetic compatibility EMC Part 4 Testing and measurement techniques Section 5 Surge immunity test 14 EN 61 000 4 6 1995 Electromagnetic c...

Страница 266: ...htning Electromagnetic Impulse Part 3 Requirements of surge protective devices 21 ITU T Recommendation K 20 1993 Resistibility of Telecommunication Switching Equipment to Overvoltages and Overcurrents...

Страница 267: ...ction is self recoverable or can be restored by the operation of the controls Performance Criteria CT Continuous phenomena applied to Transmitters A communication link is established at the start of t...

Страница 268: ...During the test no degradation of performance or loss of function is allowed Performance Criteria A K 21 The test object must withstand the test without damage or other disturbances after the test Per...

Страница 269: ...ns 47 FCC part 15 chapter 15 107 PBC Table 49 Fulfills EEC self certification requirements according to Generic standard EN 50 081 1 1992 Basic standard EN 55 022 1994 Limit Class B 40 3 2 Conducted E...

Страница 270: ...r in Watt whichever the lesser below the mean power of the unmodulated carrier The calculated radiated power limit for radiated emissions is 13 dBm Specification references Code of Federal Regulations...

Страница 271: ...ent 40 4 1 Conducted Immunity on AC power ports Fast Transient Test RBS Table 56 Fulfills the EEC type approval certification requirements according to Product standard prETS 300 342 3 October 1997 Ba...

Страница 272: ...o Product standard prETS 300 342 3 October 1997 Basic standard EN 61 000 4 6 1996 Frequency range 150 kHz 80 MHz Test level 3 V rms Performance Criteria CT Criteria CR Note see note 40 4 RF Common Mod...

Страница 273: ...4 Fast Transient Test PBC Table 62 Fulfills the EEC self certification requirements according to Generic standard EN 50 082 1 1992 Basic standard IEC 801 4 1988 Test level 0 5 kV common mode between...

Страница 274: ...sient Test PBC Table 65 Fulfills the EEC self certification requirements according to Generic standard EN 50 082 1 1992 Basic standard IEC 801 4 1988 Test level 0 5 kV common mode between all lines an...

Страница 275: ...rtification requirements according to Generic standard EN 50 082 1 1992 Basic standard IEC 801 4 1988 Test level 0 5 kV common mode between all lines and cabinet ground reference Performance Criteria...

Страница 276: ...lls the EEC self certification requirements according to Basic standard IEC 801 3 1984 Test level 3 V m unmodulated signal Frequency range 27 MHz 500 MHz Performance Criteria A Note see note 40 4 40 4...

Страница 277: ...able 73 Fulfills the EEC self certification requirements according to Product standard EN 50 082 1 1992 Basic standard IEC 801 2 1984 Test level Air discharge 8 kV Performance Criteria B Note see note...

Страница 278: ...afe function Environmental stress above the limits for normal operation where all units shall continue to function during the stress but performance or capacity may be reduced Reduction of performance...

Страница 279: ...3 PUBLIC transportation These requirements are valid for equipped cabinets excluding batteries The values in these conditions are valid for a maximum transport time of 3 months The time is measured f...

Страница 280: ...onmental Parameters Unit Value Vibration sinus displacement mm 3 5 acceleration m s 10 15 frequency Hz 2 9 9 200 200 500 Random ASD m 2 s 3 1 0 acceleration m s 12 0 frequency Hz 2 200 Shock peak acce...

Страница 281: ...ss 1 2 Note The values are average yearly levels of airborne contamination that can be accepted It is assumed that one of the contaminations is dominant at each site and that the other are present in...

Страница 282: ...g Handling the equipment withstand the conditions stated in Section 41 4 3 on page 278 in this document 41 6 4 Chemically active substances During Handling the equipment withstand the conditions state...

Страница 283: ...ues than stated by IEC and ETSI above Table 78 Climatic conditions during outdoor operation Environmental parameters Value Normal condition Non destructive Temperature C 33 45 40 70 Relative humidity...

Страница 284: ...2 s 3 0 5 frequency Hz 2 200 Duration of exposure min 30 no of test directions 3 Shock peak acceleration 100 kg m s 2 250 peak acceleration 100 kg m s 2 100 2 duration ms 6 1 ASD Acceleration Spectral...

Страница 285: ...Environmental Capabilities This page is intentionally left blank 284 306 EN LZT 123 2697 R5A 1998 08 13 Ericsson Radio Systems AB All Rights Reserved...

Страница 286: ...9 Classification of degrees of protection provided by enclosures IP Code 42 2 Product Safety This section defines the Electrical Mechanical Heat and Fire Safety Requirements for the Radio Base Station...

Страница 287: ...otecting against serious fire originating in the equipment mechanical hazards in the equipment as well as mechanical hazards in the meaning of the applicable standard The RBS is connected directly to...

Страница 288: ...Canada the following standard is met CAN CSA C22 2 No 950 Safety of information technology including electrical business Eq 43 1 1 Criteria for fire resistance of wire and cables For Europe the follow...

Страница 289: ...estricted to the use of wiremesh silicone rubber gasket for encloses of Ericsson equipment cabinets The wiremesh is applied as EMC protection 43 5 Environmental Consideration during the Life Cycle Acc...

Страница 290: ...I Model 44 3 References See 4 155 19 ANT 241 05 Uen Abis O M Interface Part II Procedures 44 4 Parameters The parameters listed are extracted from the Data Elements listed in the Abis O M IWD documen...

Страница 291: ...d inlet outlet and Tag sequential number of CG within Input Concentration Map 1 12 IWD defined value range y 0 16 mi 2 17 CCP CCP number 0 4 1020 Reserved 1 3 5 7 1021 1023 Tag CP gives deconcentrated...

Страница 292: ...BTS supported value ranges Other state 0 3 IWD defined value range 0 3 Note There are limitations for specific combinations of current state and other state 44 4 9 FN Offset FN Frame Number Offset mus...

Страница 293: ...885 dec ARFCN 1900 MHz 512 810 dec IWD defined value range ARFCN 900 MHz 1 124 dec ARFCN 1800 1900 MHz 512 885 dec Note Frequency channel number should be defined in steps of two to prevent interfere...

Страница 294: ...er 0 IWD defined value range 0 1 44 4 15 MO Identifier Table 82 BTS supported IWD defined value range MO class BTS supported value hex IWD defined value hex Instance number Instance number TRXC 01 00...

Страница 295: ...Code BTS supported codes Wrong state or out of sequence 02 File error 03 Fault unspecified 04 Protocol error 06 MO not connected 07 IWD defined value range 01 0A 44 4 19 TCH Capabilities BTS supporte...

Страница 296: ...260 261 262 263 o 256 257 258 259 o o o 348 349 350 351 260 261 262 263 256 257 258 259 o ICP SCH1 SCH2 SCH24 CCP IS o o o o o o o o o o o CON TS 64 kbit PSM timeslot ATSR Air time slot resource SCH S...

Страница 297: ...BTS Parameter Limitations This page is intentionally left blank 296 306 EN LZT 123 2697 R5A 1998 08 13 Ericsson Radio Systems AB All Rights Reserved...

Страница 298: ...o Digital converter AIS Alarm Indication Signal AO Application Object ARFCN Absolute Radio Frequency Channel Number ARP Antenna Reference Point ASIC Application Specific Integrated Circuit Astra ASIC...

Страница 299: ...bution Unit Cell An area of radio coverage identified by the GSM network by means of the cell identity CF Central Functions Channel The common term channel denotes the virtual connection consisting of...

Страница 300: ...SIC in the TRU DB DataBase DC Direct Current DCC Digital Cross Connector DCS Digital Communication System International standard for 1800 MHz based on the GSM standard DIP DIgital Path The name of the...

Страница 301: ...eld Support Centre FU Filtering Unit GS General Specification GSM Global System for Mobile communications International standard for a TDMA digital mobile communication system Originally GSM was an ab...

Страница 302: ...ication between the BSC and the BTS on the Abis interface Abis layer 2 is sometimes used synonymously with LAPD LBO Line Build Out LED Light Emitting Diode LLB Line Loop Back LNA Low Noise Amplifier L...

Страница 303: ...in replaceable unit is a replaceable unit that contains one or more processors to which software can be downloaded from the BSC MHS Modification Handling System Ericsson trouble report database MMI Ma...

Страница 304: ...Power Amplifier Module PBA Printed Board Assembly PBC Power and Battery Cabinet PC Personal Computer PCH Paging CHannel Downlink only subchannel of CCCH for system paging of MSs CCCH PCM Pulse Code Mo...

Страница 305: ...RLC Repair Logistic Centre R state Release state RTN Return RU Replaceable Unit An RU consists of one or more HWUs An RU may be replaced by another RU of the same type The RU is the smallest unit that...

Страница 306: ...and Each channel is assigned a certain time division a time slot TDMA frame GSM air interface time frame comprising eight time slots TEI Terminal Endpoint Identifier TEI is an identification code carr...

Страница 307: ...Time TX Transmitter TXU Transmitter Unit UAS Unavailable Seconds UL Underwriters Laboratories Inc Uplink Signalling direction from the MS to the system UPS Uninterrupted Power Supply VCO Voltage Contr...

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