The document provides an overview of performance metrics and data sources for Nortel's CDMA equipment. There are three main sources of performance data: MTX, BSS (BSC + BTS), and PDSN. BSS and MTX data can provide information on traffic levels, call attempts, handovers, power levels, and faults. MTX data is organized by system and sector and includes metrics like call setup rates, access failures, and drop call rates. Performance data is collected every half hour and stored in files with standardized naming conventions and data formats.
This document discusses radio resource optimization parameters in GSM networks. It covers topics like idle parameter optimization, power control, handover control, radio resource administration, measurement processing, signaling channel mapping, traffic channel mapping, paging parameters, access grant channel parameters, frequency reuse, and frequency hopping techniques. Diagrams and examples are provided to illustrate concepts like TDMA frame structure, logical and physical channel organization, and capacity calculations.
This document discusses radio resource optimization parameters in GSM networks. It covers topics like idle parameter optimization, power control, handover control, radio resource administration, measurement processing, signaling channel mapping, traffic channel mapping, paging parameters, access grant channel parameters, frequency reuse, and frequency hopping techniques. Diagrams and examples are provided to illustrate concepts like TDMA frame structure, logical and physical channel organization, and capacity calculations.
GSM Signaling Procedure in detail presented.pptKedirHassen3
This document provides an overview of GSM signaling procedures including:
- Establishing the radio signaling link between the mobile station (MS) and network using paging, random access, and immediate assignment procedures.
- Mobility management procedures like location updating and authentication.
- Call control procedures for mobile originating and terminating calls including call setup and assignment to traffic channels.
- Supplementary services like ciphering, temporary mobile subscriber identity (TMSI) reallocation, and identification.
- Channel configurations including dedicated traffic and control channels.
• -How the channel concept is used on the radio interface
• -Different burst formats in the radio interface
• -The hierarchical frame structure
• -The content sent in different logical channels
• -The mapping of the logical channels
• -Superframe and Hyperframe
• -MOBILE STATIONS ISDN NUMBER (MSISDN)
• INTERNATIONAL MOBILE SUBSCRIBER IDENTITY (IMSI)
• TEMPORARY MOBILE SUBSCRIBER IDENTITY (TMSI)
• LOCATION AREA IDENTITY (LAI)
• CELL GLOBAL IDENTITY (CGI)
• BASE STATION IDENTITY CODE (BSIC)
• PIN management
This document provides an agenda and guidelines for an Ericsson 2G training in April 2019. The agenda covers topics such as improving 2G KPIs like SDCCH congestion%, SDCCH drop%, TCH congestion%, and HO success rate. It also discusses optimizing processes like dynamic power control, call reestablishment, automatic neighbor relations, and handover optimization. Other topics include adaptive channel allocation, extended cell range, repeated downlink/SACCH transmissions, layer 2 reestablishment, and power saving features. The document provides explanations and recommendations for adjusting parameters to improve performance for each metric and process.
Overview Of Gsm Cellular Network & OperationsDeepak Sharma
The document provides an overview of the GSM cellular network and its operations. It describes the main components including the mobile switching center (MSC), home location register (HLR), visitor location register (VLR), and authentication center (AUC). It also discusses the mobile handset, radio interface, network architecture, and how capacity is increased through frequency reuse, cell splitting, and sectoring.
The document provides an overview of the key components and operations of a GSM cellular network. It describes the network and switching subsystem (NSS) which controls connections, mobility management, and interconnection. The NSS includes components like the Mobile Switching Center (MSC) and databases like the Home Location Register (HLR) and Visitor Location Register (VLR). It also describes the mobile handset, radio interface using TDMA, network architecture with cells, and methods to increase network capacity like frequency reuse, cell splitting, and sectoring.
GSM Network Analysis and KPI Optimisation discusses key performance indicators (KPIs) for optimizing GSM networks. It describes the architecture of GSM networks including mobile stations, base station subsystems, switching subsystems and operation support subsystems. It then covers various GSM concepts like channels, frame structure, bursts and call flows. The document outlines different types of KPIs like accessibility, retainability and speech quality for both voice and data services. Finally, it discusses how to optimize specific KPIs like blocking, dropping and handover success rates by checking network parameters and using tools like OSS, MRR and NCS reports.
This document discusses radio resource optimization parameters in GSM networks. It covers topics like idle parameter optimization, power control, handover control, radio resource administration, measurement processing, signaling channel mapping, traffic channel mapping, paging parameters, access grant channel parameters, frequency reuse, and frequency hopping techniques. Diagrams and examples are provided to illustrate concepts like TDMA frame structure, logical and physical channel organization, and capacity calculations.
This document discusses radio resource optimization parameters in GSM networks. It covers topics like idle parameter optimization, power control, handover control, radio resource administration, measurement processing, signaling channel mapping, traffic channel mapping, paging parameters, access grant channel parameters, frequency reuse, and frequency hopping techniques. Diagrams and examples are provided to illustrate concepts like TDMA frame structure, logical and physical channel organization, and capacity calculations.
GSM Signaling Procedure in detail presented.pptKedirHassen3
This document provides an overview of GSM signaling procedures including:
- Establishing the radio signaling link between the mobile station (MS) and network using paging, random access, and immediate assignment procedures.
- Mobility management procedures like location updating and authentication.
- Call control procedures for mobile originating and terminating calls including call setup and assignment to traffic channels.
- Supplementary services like ciphering, temporary mobile subscriber identity (TMSI) reallocation, and identification.
- Channel configurations including dedicated traffic and control channels.
• -How the channel concept is used on the radio interface
• -Different burst formats in the radio interface
• -The hierarchical frame structure
• -The content sent in different logical channels
• -The mapping of the logical channels
• -Superframe and Hyperframe
• -MOBILE STATIONS ISDN NUMBER (MSISDN)
• INTERNATIONAL MOBILE SUBSCRIBER IDENTITY (IMSI)
• TEMPORARY MOBILE SUBSCRIBER IDENTITY (TMSI)
• LOCATION AREA IDENTITY (LAI)
• CELL GLOBAL IDENTITY (CGI)
• BASE STATION IDENTITY CODE (BSIC)
• PIN management
This document provides an agenda and guidelines for an Ericsson 2G training in April 2019. The agenda covers topics such as improving 2G KPIs like SDCCH congestion%, SDCCH drop%, TCH congestion%, and HO success rate. It also discusses optimizing processes like dynamic power control, call reestablishment, automatic neighbor relations, and handover optimization. Other topics include adaptive channel allocation, extended cell range, repeated downlink/SACCH transmissions, layer 2 reestablishment, and power saving features. The document provides explanations and recommendations for adjusting parameters to improve performance for each metric and process.
Overview Of Gsm Cellular Network & OperationsDeepak Sharma
The document provides an overview of the GSM cellular network and its operations. It describes the main components including the mobile switching center (MSC), home location register (HLR), visitor location register (VLR), and authentication center (AUC). It also discusses the mobile handset, radio interface, network architecture, and how capacity is increased through frequency reuse, cell splitting, and sectoring.
The document provides an overview of the key components and operations of a GSM cellular network. It describes the network and switching subsystem (NSS) which controls connections, mobility management, and interconnection. The NSS includes components like the Mobile Switching Center (MSC) and databases like the Home Location Register (HLR) and Visitor Location Register (VLR). It also describes the mobile handset, radio interface using TDMA, network architecture with cells, and methods to increase network capacity like frequency reuse, cell splitting, and sectoring.
GSM Network Analysis and KPI Optimisation discusses key performance indicators (KPIs) for optimizing GSM networks. It describes the architecture of GSM networks including mobile stations, base station subsystems, switching subsystems and operation support subsystems. It then covers various GSM concepts like channels, frame structure, bursts and call flows. The document outlines different types of KPIs like accessibility, retainability and speech quality for both voice and data services. Finally, it discusses how to optimize specific KPIs like blocking, dropping and handover success rates by checking network parameters and using tools like OSS, MRR and NCS reports.
This document summarizes the key steps in cell planning and optimization for a GSM network in Sragen, Indonesia, including:
1) Conducting traffic and coverage analysis, dimensioning the nominal cell plan, and determining link budgets and site requirements.
2) Performing a detailed frequency plan, parameter planning, and interference predictions.
3) Installing and commissioning new sites, then conducting drive tests and optimizations to meet key performance indicators.
4) Ongoing radio frequency optimization is needed using statistics to identify and address problems impacting call setup success rate, handover success rate, or dropped call rate.
BSC6600 is divided into following functional blocks. In general each block corresponds to single subrack. These are:
CDMA Switch Subrack (CSWS)
CDMA Integrated Processing Subrack (CIPS)
CDMA Resource and Packet Subrack (CRPS)
CDMA Packet Module Subrack (CPMS)
Clock processing Module (CLKM)
CDMA Integrated Management System (CIMS)
Full rate => Used for speech at 13 Kbits/s
or sending data at 9.6 Kbits/s
Half rate => Used for speech at 6.5 Kbits/s
or sending data at 4.8 Kbits/s
Enhanced Full rate => Used for speech at 13 Kbits/s
or sending data at 9.6 Kbits/s but
with almost Land line quality
FCCH = FREQUENCY CORRECTION CHANNEL
=> To tell the Mobile that this is the BCCH carrier
=> To able the Mobile to synchronize to the frequency
(Downlink only)
SCH = SYNCHRONISATION CHANNEL
=> Used for sending BSIC (Base station Identity Code)
=> Give TDMA frame number to the Mobile.
(Downlink only)
BCCH = BROADCAST CONTROL CHANNEL
=> Used for sending information to the mobile like
CGI (Cell Global identity), LAI (Location Area Identity),
BCCH carriers of the neighboring cells,
maximum output power allowed in the cell and other
broadcast messages like barred cell. (Downlink only)
PCH = PAGING CHANNEL
=> Used for paging the Mobile. (Downlink only)
Reason could be an incoming call or an incoming Short Message.
RACH = RANDOM ACCESS CHANNEL
=> Used for responding to the paging (terminating), Location updating
or to make call access (originating) by asking for a signaling channel.
(Uplink only)
AGCH = ACCESS GRANT CHANNEL
=> Used to allocate SDCCH to the mobile.
(Downlink only)
This presentation discusses GSM frame structure and logical channels. It covers GSM frequency bands and specifications, the multiple access methods of FDMA and TDMA, frame representations, and logical traffic and control channels including BCCH, CCCH, DCCH, and TCH channels. Frame structures include hyperframes, superframes, multiframes, and TDMA frames. Logical channel configurations and multiplexing of channels on timeslots are also summarized.
This document provides an overview and agenda for a training on drive testing 2G/3G networks. The training covers topics such as network architecture, channelization, handover processes, drive test concepts and parameters, using drive test tools like Nemo Outdoor, performing outdoor and indoor tests, analyzing data collected, generating reports with MapInfo software, and tuning network performance. The training is split into 5 modules that cover these topics over 10 hours of instruction.
1. Several parameters were changed at the BSC and cell level to improve GPRS/EGPRS download throughput for the TTSL Orissa project, including enabling BVC flow control, supporting signaling and extended uplink TBFs, increasing timer values, and adjusting cell reselection hysteresis levels.
2. UPPB-DSP congestion auditing formulas were provided to check GPRS/EGPRS congestion rates based on resource and Abis congestion counters.
3. Testing concluded that adjusting PDTCH configurations and increasing the number of PDTCHs from 2 to 3 improved EGPRS download throughput.
The document describes CSFB (CS fallback) and SMSoSGs (SMS over SGs) procedures in EPS. It discusses:
1. The protocol stack used on the SGs interface between MME and MSC, including SGsAP over SCTP.
2. Key SGs procedures like location update and detach to coordinate EPS and CS domain location information between MME and VLR.
3. How the MME allocates TAIs and LAIs to help optimize CSFB handovers between E-UTRAN and GERAN/UTRAN.
The document provides an overview of the Global System for Mobile communications (GSM) including its history, architecture, key components, and technical aspects. It describes GSM concepts such as cellular structure and multiple access techniques. It also outlines the roles of core network elements like the HLR, VLR, MSC, BSC, BTS, and identifies interfaces between them. Finally, it covers topics like channel structure, encryption, and mobility management in GSM.
Bsspar1 s14 chapter 02_radio_resource_administration_v1.1Simon Aja
1. The document discusses intellectual property rights for Nokia Siemens Networks training materials, stating that Nokia Siemens Networks owns exclusive copyright and that individuals can only use materials for personal development and cannot pass them on without permission.
2. It then provides an overview of TDMA frame structures, logical and physical channels, and their mapping and parameters.
3. The document describes concepts like base station identity codes, training sequence codes, frequency reuse, and frequency hopping parameters.
This document provides an overview of two fundamental mechanisms in LTE access networks: random access and buffer status reporting. It describes the random access procedure used by UEs to connect to the network, including the exchange of preambles, responses, and temporary identifiers. It also explains the buffer status reporting procedure, where UEs indicate to the base station the amount of data waiting to be transmitted so that uplink resources can be allocated. Key parameters for both mechanisms are defined in 3GPP specifications to optimize performance and control signaling in the network.
This document discusses BSS parameter configurations in GSM networks. It describes the channel configurations including TDMA frame structure, signaling channels like BCCH, CCCH, SDCCH, and traffic channels like TCH. It explains combined and separated signaling channel configurations and shows examples of multiframe structures for different channel types. It also covers capacity calculations for SDCCH channels and includes an Erlang B table.
UMTS ... is 3G technology and concepts. It introduced a new radio access network called UTRAN and a new air interface called WCDMA. The core network was initially based on GSM/GPRS but was expanded with new nodes. UMTS defined four quality of service classes and new protocols were introduced for the user plane and control plane in UTRAN and between network elements. Key concepts included serving and drift RNCs for soft handover, and SRNS relocation for changing the serving RNC.
The document discusses 3GPP specification evolution including TD-SCDMA evolution and 3GPP Long Term Evolution. It provides details on the TD-SCDMA evolution path including multi-carrier HSDPA and MBMS. It also discusses the targets of 3GPP Long Term Evolution including significantly increased peak data rates, improved spectrum efficiency, reduced latency, scalable bandwidth support, and reduced costs.
The document discusses HSPA MAC-centric technologies including HSDPA and HSUPA. It provides an overview of 3GPP UMTS evolution from Release 5 to Release 8, which introduced HSDPA and HSUPA to improve peak data rates and reduce latency. It describes key aspects of HSPA such as the location of MAC-hs at the Node B to enable fast scheduling and HARQ, as well as transport and physical channels used in HSDPA and HSUPA like HS-DSCH, E-DCH, HS-SCCH, and HS-DPCCH. It also covers flow control between the Node B and RNC and enhancements introduced in Release 6.
6 Weeks Industrial Training In Telecom In ChandigarhArcadian Learning
GSM combines frequency division multiple access (FDMA) and time division multiple access (TDMA) to allow multiple stations to access the same radio channel. The bandwidth is divided into 124 channels of 200 kHz each that are shared between up to eight mobile stations by assigning transmission slots. TDMA frames are 4.615 ms long and each frame is divided into 8 time slots of 577 μs. Uplink and downlink frames are offset by three time slots to avoid collisions. Logical channels include traffic channels, broadcast channels, common control channels, and dedicated control channels for functions like paging, synchronization, authentication and call setup. GSM uses pulse code modulation and RPE-LPC speech coding at 13 kbps to compress
The document describes the general architecture and functions of the OCB-283 telephone exchange system. It discusses the three main subsystems: 1) the subscriber access subsystem, 2) the connection and control subsystem, and 3) the operation and maintenance subsystem. It provides details on the different hardware components that make up the OCB-283 system and their functions, including the main control station, switching matrix station, trunk control station, and others.
Introduction
Channel Configuration
Idle Mode Operation
Protocols
Radio resources
Measurements
Power Control
HO process
Intelligent Underlay Overlay
Handover Support for Coverage Enhanchements
The extended cell
Dynamic Hotspot
Dual band GSM/DCS Network Operation
Half Rate
HSCSD
The document discusses the Global System for Mobiles (GSM) mobile communication technology. It describes GSM concepts like cellular structure and frequency division duplexing. It outlines the GSM network architecture including components like the mobile station, base station, base station controller, mobile switching center, home location register, and visitor location register. It also covers GSM channels, mobility management, and call management functions.
The document discusses the air interface in GSM systems. It describes:
1) GSM uses TDMA to allow multiple users to share the same radio frequency by dividing each carrier into 8 time slots, with each user assigned a time slot.
2) The TDMA frame structure consists of 8 time slots of 0.577ms each, with a total frame duration of 4.615ms. Guard periods are used between time slots.
3) There are different types of logical channels including traffic channels, control channels, and broadcast channels that carry user data, signaling information, and system parameters respectively.
4G-Fourth Generation Mobile Communication SystemSafaet Hossain
Seminar on "4G-Fourth Generation Mobile Communication System" at UODA Auditorium, November 16,2013.
Technical Presented by: Ahmedul Quadir, Function Tester, Ericcson, Sweeden
HCL Notes und Domino Lizenzkostenreduzierung in der Welt von DLAUpanagenda
Webinar Recording: https://www.panagenda.com/webinars/hcl-notes-und-domino-lizenzkostenreduzierung-in-der-welt-von-dlau/
DLAU und die Lizenzen nach dem CCB- und CCX-Modell sind für viele in der HCL-Community seit letztem Jahr ein heißes Thema. Als Notes- oder Domino-Kunde haben Sie vielleicht mit unerwartet hohen Benutzerzahlen und Lizenzgebühren zu kämpfen. Sie fragen sich vielleicht, wie diese neue Art der Lizenzierung funktioniert und welchen Nutzen sie Ihnen bringt. Vor allem wollen Sie sicherlich Ihr Budget einhalten und Kosten sparen, wo immer möglich. Das verstehen wir und wir möchten Ihnen dabei helfen!
Wir erklären Ihnen, wie Sie häufige Konfigurationsprobleme lösen können, die dazu führen können, dass mehr Benutzer gezählt werden als nötig, und wie Sie überflüssige oder ungenutzte Konten identifizieren und entfernen können, um Geld zu sparen. Es gibt auch einige Ansätze, die zu unnötigen Ausgaben führen können, z. B. wenn ein Personendokument anstelle eines Mail-Ins für geteilte Mailboxen verwendet wird. Wir zeigen Ihnen solche Fälle und deren Lösungen. Und natürlich erklären wir Ihnen das neue Lizenzmodell.
Nehmen Sie an diesem Webinar teil, bei dem HCL-Ambassador Marc Thomas und Gastredner Franz Walder Ihnen diese neue Welt näherbringen. Es vermittelt Ihnen die Tools und das Know-how, um den Überblick zu bewahren. Sie werden in der Lage sein, Ihre Kosten durch eine optimierte Domino-Konfiguration zu reduzieren und auch in Zukunft gering zu halten.
Diese Themen werden behandelt
- Reduzierung der Lizenzkosten durch Auffinden und Beheben von Fehlkonfigurationen und überflüssigen Konten
- Wie funktionieren CCB- und CCX-Lizenzen wirklich?
- Verstehen des DLAU-Tools und wie man es am besten nutzt
- Tipps für häufige Problembereiche, wie z. B. Team-Postfächer, Funktions-/Testbenutzer usw.
- Praxisbeispiele und Best Practices zum sofortigen Umsetzen
Your One-Stop Shop for Python Success: Top 10 US Python Development Providersakankshawande
Simplify your search for a reliable Python development partner! This list presents the top 10 trusted US providers offering comprehensive Python development services, ensuring your project's success from conception to completion.
This document summarizes the key steps in cell planning and optimization for a GSM network in Sragen, Indonesia, including:
1) Conducting traffic and coverage analysis, dimensioning the nominal cell plan, and determining link budgets and site requirements.
2) Performing a detailed frequency plan, parameter planning, and interference predictions.
3) Installing and commissioning new sites, then conducting drive tests and optimizations to meet key performance indicators.
4) Ongoing radio frequency optimization is needed using statistics to identify and address problems impacting call setup success rate, handover success rate, or dropped call rate.
BSC6600 is divided into following functional blocks. In general each block corresponds to single subrack. These are:
CDMA Switch Subrack (CSWS)
CDMA Integrated Processing Subrack (CIPS)
CDMA Resource and Packet Subrack (CRPS)
CDMA Packet Module Subrack (CPMS)
Clock processing Module (CLKM)
CDMA Integrated Management System (CIMS)
Full rate => Used for speech at 13 Kbits/s
or sending data at 9.6 Kbits/s
Half rate => Used for speech at 6.5 Kbits/s
or sending data at 4.8 Kbits/s
Enhanced Full rate => Used for speech at 13 Kbits/s
or sending data at 9.6 Kbits/s but
with almost Land line quality
FCCH = FREQUENCY CORRECTION CHANNEL
=> To tell the Mobile that this is the BCCH carrier
=> To able the Mobile to synchronize to the frequency
(Downlink only)
SCH = SYNCHRONISATION CHANNEL
=> Used for sending BSIC (Base station Identity Code)
=> Give TDMA frame number to the Mobile.
(Downlink only)
BCCH = BROADCAST CONTROL CHANNEL
=> Used for sending information to the mobile like
CGI (Cell Global identity), LAI (Location Area Identity),
BCCH carriers of the neighboring cells,
maximum output power allowed in the cell and other
broadcast messages like barred cell. (Downlink only)
PCH = PAGING CHANNEL
=> Used for paging the Mobile. (Downlink only)
Reason could be an incoming call or an incoming Short Message.
RACH = RANDOM ACCESS CHANNEL
=> Used for responding to the paging (terminating), Location updating
or to make call access (originating) by asking for a signaling channel.
(Uplink only)
AGCH = ACCESS GRANT CHANNEL
=> Used to allocate SDCCH to the mobile.
(Downlink only)
This presentation discusses GSM frame structure and logical channels. It covers GSM frequency bands and specifications, the multiple access methods of FDMA and TDMA, frame representations, and logical traffic and control channels including BCCH, CCCH, DCCH, and TCH channels. Frame structures include hyperframes, superframes, multiframes, and TDMA frames. Logical channel configurations and multiplexing of channels on timeslots are also summarized.
This document provides an overview and agenda for a training on drive testing 2G/3G networks. The training covers topics such as network architecture, channelization, handover processes, drive test concepts and parameters, using drive test tools like Nemo Outdoor, performing outdoor and indoor tests, analyzing data collected, generating reports with MapInfo software, and tuning network performance. The training is split into 5 modules that cover these topics over 10 hours of instruction.
1. Several parameters were changed at the BSC and cell level to improve GPRS/EGPRS download throughput for the TTSL Orissa project, including enabling BVC flow control, supporting signaling and extended uplink TBFs, increasing timer values, and adjusting cell reselection hysteresis levels.
2. UPPB-DSP congestion auditing formulas were provided to check GPRS/EGPRS congestion rates based on resource and Abis congestion counters.
3. Testing concluded that adjusting PDTCH configurations and increasing the number of PDTCHs from 2 to 3 improved EGPRS download throughput.
The document describes CSFB (CS fallback) and SMSoSGs (SMS over SGs) procedures in EPS. It discusses:
1. The protocol stack used on the SGs interface between MME and MSC, including SGsAP over SCTP.
2. Key SGs procedures like location update and detach to coordinate EPS and CS domain location information between MME and VLR.
3. How the MME allocates TAIs and LAIs to help optimize CSFB handovers between E-UTRAN and GERAN/UTRAN.
The document provides an overview of the Global System for Mobile communications (GSM) including its history, architecture, key components, and technical aspects. It describes GSM concepts such as cellular structure and multiple access techniques. It also outlines the roles of core network elements like the HLR, VLR, MSC, BSC, BTS, and identifies interfaces between them. Finally, it covers topics like channel structure, encryption, and mobility management in GSM.
Bsspar1 s14 chapter 02_radio_resource_administration_v1.1Simon Aja
1. The document discusses intellectual property rights for Nokia Siemens Networks training materials, stating that Nokia Siemens Networks owns exclusive copyright and that individuals can only use materials for personal development and cannot pass them on without permission.
2. It then provides an overview of TDMA frame structures, logical and physical channels, and their mapping and parameters.
3. The document describes concepts like base station identity codes, training sequence codes, frequency reuse, and frequency hopping parameters.
This document provides an overview of two fundamental mechanisms in LTE access networks: random access and buffer status reporting. It describes the random access procedure used by UEs to connect to the network, including the exchange of preambles, responses, and temporary identifiers. It also explains the buffer status reporting procedure, where UEs indicate to the base station the amount of data waiting to be transmitted so that uplink resources can be allocated. Key parameters for both mechanisms are defined in 3GPP specifications to optimize performance and control signaling in the network.
This document discusses BSS parameter configurations in GSM networks. It describes the channel configurations including TDMA frame structure, signaling channels like BCCH, CCCH, SDCCH, and traffic channels like TCH. It explains combined and separated signaling channel configurations and shows examples of multiframe structures for different channel types. It also covers capacity calculations for SDCCH channels and includes an Erlang B table.
UMTS ... is 3G technology and concepts. It introduced a new radio access network called UTRAN and a new air interface called WCDMA. The core network was initially based on GSM/GPRS but was expanded with new nodes. UMTS defined four quality of service classes and new protocols were introduced for the user plane and control plane in UTRAN and between network elements. Key concepts included serving and drift RNCs for soft handover, and SRNS relocation for changing the serving RNC.
The document discusses 3GPP specification evolution including TD-SCDMA evolution and 3GPP Long Term Evolution. It provides details on the TD-SCDMA evolution path including multi-carrier HSDPA and MBMS. It also discusses the targets of 3GPP Long Term Evolution including significantly increased peak data rates, improved spectrum efficiency, reduced latency, scalable bandwidth support, and reduced costs.
The document discusses HSPA MAC-centric technologies including HSDPA and HSUPA. It provides an overview of 3GPP UMTS evolution from Release 5 to Release 8, which introduced HSDPA and HSUPA to improve peak data rates and reduce latency. It describes key aspects of HSPA such as the location of MAC-hs at the Node B to enable fast scheduling and HARQ, as well as transport and physical channels used in HSDPA and HSUPA like HS-DSCH, E-DCH, HS-SCCH, and HS-DPCCH. It also covers flow control between the Node B and RNC and enhancements introduced in Release 6.
6 Weeks Industrial Training In Telecom In ChandigarhArcadian Learning
GSM combines frequency division multiple access (FDMA) and time division multiple access (TDMA) to allow multiple stations to access the same radio channel. The bandwidth is divided into 124 channels of 200 kHz each that are shared between up to eight mobile stations by assigning transmission slots. TDMA frames are 4.615 ms long and each frame is divided into 8 time slots of 577 μs. Uplink and downlink frames are offset by three time slots to avoid collisions. Logical channels include traffic channels, broadcast channels, common control channels, and dedicated control channels for functions like paging, synchronization, authentication and call setup. GSM uses pulse code modulation and RPE-LPC speech coding at 13 kbps to compress
The document describes the general architecture and functions of the OCB-283 telephone exchange system. It discusses the three main subsystems: 1) the subscriber access subsystem, 2) the connection and control subsystem, and 3) the operation and maintenance subsystem. It provides details on the different hardware components that make up the OCB-283 system and their functions, including the main control station, switching matrix station, trunk control station, and others.
Introduction
Channel Configuration
Idle Mode Operation
Protocols
Radio resources
Measurements
Power Control
HO process
Intelligent Underlay Overlay
Handover Support for Coverage Enhanchements
The extended cell
Dynamic Hotspot
Dual band GSM/DCS Network Operation
Half Rate
HSCSD
The document discusses the Global System for Mobiles (GSM) mobile communication technology. It describes GSM concepts like cellular structure and frequency division duplexing. It outlines the GSM network architecture including components like the mobile station, base station, base station controller, mobile switching center, home location register, and visitor location register. It also covers GSM channels, mobility management, and call management functions.
The document discusses the air interface in GSM systems. It describes:
1) GSM uses TDMA to allow multiple users to share the same radio frequency by dividing each carrier into 8 time slots, with each user assigned a time slot.
2) The TDMA frame structure consists of 8 time slots of 0.577ms each, with a total frame duration of 4.615ms. Guard periods are used between time slots.
3) There are different types of logical channels including traffic channels, control channels, and broadcast channels that carry user data, signaling information, and system parameters respectively.
4G-Fourth Generation Mobile Communication SystemSafaet Hossain
Seminar on "4G-Fourth Generation Mobile Communication System" at UODA Auditorium, November 16,2013.
Technical Presented by: Ahmedul Quadir, Function Tester, Ericcson, Sweeden
HCL Notes und Domino Lizenzkostenreduzierung in der Welt von DLAUpanagenda
Webinar Recording: https://www.panagenda.com/webinars/hcl-notes-und-domino-lizenzkostenreduzierung-in-der-welt-von-dlau/
DLAU und die Lizenzen nach dem CCB- und CCX-Modell sind für viele in der HCL-Community seit letztem Jahr ein heißes Thema. Als Notes- oder Domino-Kunde haben Sie vielleicht mit unerwartet hohen Benutzerzahlen und Lizenzgebühren zu kämpfen. Sie fragen sich vielleicht, wie diese neue Art der Lizenzierung funktioniert und welchen Nutzen sie Ihnen bringt. Vor allem wollen Sie sicherlich Ihr Budget einhalten und Kosten sparen, wo immer möglich. Das verstehen wir und wir möchten Ihnen dabei helfen!
Wir erklären Ihnen, wie Sie häufige Konfigurationsprobleme lösen können, die dazu führen können, dass mehr Benutzer gezählt werden als nötig, und wie Sie überflüssige oder ungenutzte Konten identifizieren und entfernen können, um Geld zu sparen. Es gibt auch einige Ansätze, die zu unnötigen Ausgaben führen können, z. B. wenn ein Personendokument anstelle eines Mail-Ins für geteilte Mailboxen verwendet wird. Wir zeigen Ihnen solche Fälle und deren Lösungen. Und natürlich erklären wir Ihnen das neue Lizenzmodell.
Nehmen Sie an diesem Webinar teil, bei dem HCL-Ambassador Marc Thomas und Gastredner Franz Walder Ihnen diese neue Welt näherbringen. Es vermittelt Ihnen die Tools und das Know-how, um den Überblick zu bewahren. Sie werden in der Lage sein, Ihre Kosten durch eine optimierte Domino-Konfiguration zu reduzieren und auch in Zukunft gering zu halten.
Diese Themen werden behandelt
- Reduzierung der Lizenzkosten durch Auffinden und Beheben von Fehlkonfigurationen und überflüssigen Konten
- Wie funktionieren CCB- und CCX-Lizenzen wirklich?
- Verstehen des DLAU-Tools und wie man es am besten nutzt
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2. 2
Performance Data
> There are 3 main sources of performance data in Nortel’s CDMA
equipment
• MTX
• BSS (BSC + BTS)
• PDSN
> Each of these are unique and comes under different format and
performance data are configured, collected, stored, and
retrieved separately on each system
> The focus for RF engineering is on the MTX and BSS side
3. 3
Performance Data - Overview
> BSS data can provide
• XCEM usage – Per sector Traffic/Erlang
• Paging/Access performance (normal + border repage)
• Handover performance
• Power measurement (Tx/Rx)
• Data performance
> MTX data can provide
• Performance (call setup and drop call)
• Total call attempt (new and hard handoff)
• SMS statistics
• MCTA
• Authentication
• Trunk utilisation
5. 5
BSS Data Format
> File will commence with date/timestamp
> Data line format is
|DT|Seq|Value|
Where:
DT = Data Type (5 = 16 bit word, 7 = 32 bit word)
Seq = Sequence Number
Value = Value for this half hour
6. 6
BTS Performance Data
> The MO’s of interest for Radio engineers are :
• AdvancedFA MO,
• PowerManagement MO, and
• AdvancedSector MO.
> Every half-hour, all BTSs report the following information:
• Handoff state information
• Transmit power information
• Received power information
• Call/Handoff blocking reasons
> From these, can also deduce:
• Total carried traffic
• Available RF capacity
• Transmitter faults
• Receiver faults
7. 7
AdvancedFA MO
Contain Carrier specific information mainly Channel element
availability and usage
NumOfTCAvailable
Total number of channel elements available for traffic across all
channel cards after overhead channels have been subtracted
TCEUtilMaximum
The peak number of channel elements in use simultaneously
during this half hour
9. 9
Advanced Sector MO
Contain :
• Origination/Termination/Soft Handoff Blocking Reasons/Counts
• Non-blocked Origination/Termination/Soft Handoff Counts
• Digital Power Averages
• Paging and Access channel utilisation
• Walsh Code utilisation
Units for Power usage is Digital gain squared
Where digital gain of a particular channel element is a value from 0 to 254
representing the voltage at the output of the element
Example Uses:
Calculate percentages of blocks due to different reasons
In conjunction with AdvancedFA MO data, estimate available forward
air link capacity
11. 11
Power Information
MO Name: PowerManagement
Allow engineers to determine whether sector went into software power
limiting
Information include
RF Transmit Power Information
RF Received Power Information
Both Max and Average are captured
In conjunction with AdvancedFA MO data, estimate available forward
and reverse air-link capacity on a per sector carrier level (CE + RF)
Units:
Receive power is 16*dBfW
conversion to dBm = (value/16) – 120
Transmit power is 16*dBm
Conversion to dBm = (value/16)
13. 13
MTX Performance Data
> MTX OMs are organized and reported on a per-system,
per-sector, or per-carrier-sector basis.
> MTX OMs are divided into two categories: non-CDMA
specific OMs and CDMA specific OMs
> Non CDMA specific would include such things are MTX
memory and link utilizations, VLR and HLR transactions
> MTX specifically for CDMA-related events and normally
labelled as CAUxxx
15. 15
Voice Metric for a 30 minute collection period
Call Attempts = Summed across all sector - carriers
CAUCPSCT. (CAUPGRES + CAUOATTS + CAUHATTS)
+ CAUSCT3V. (CAUPGRES + CAUOATTS + CAUHATTS)
+ CAUSCT2.(WPSRETRY + WPSTRTRY) +
CAUST3V2.(WPSRETRY + WPSTRTRY) –
CAUXTFRQ.(MCTPRSO + MCTPRST) –
CAUXTF3V.(MCTPRSO + MCTPRST)
Data Metric for a 30 minute collection period
Data Call Attempts = Summed across all sector - carriers
CAUSCT3D. (CAUPGRES + CAUOATTS + CAUHATTS) –
CAUXTF3D.(MCTPRSO + MCTPRST)
MTX Performance Data
16. 16
Drop Call Rate all scenarios across all sector - carriers
(Σ (CAUDROPR + CAUDROPN) for all sectors/ Σ (CAUOSUCC +
CAUTSUCC + CAUHSUCC) for all sectors) x 100
RF only Drop Call Rate across all sector
( Σ CAUDROPR for all sectors / Σ (CAUOSUCC + CAUTSUCC +
CAUHSUCC) for all sectors) x 100
Network only Drop Call Rate across all sector which include issues
such as “RLM locked, TCE locked, Trunk problem or a Selector
problem
( Σ CAUDROPN for all sectors / Σ (CAUOSUCC + CAUTSUCC +
CAUHSUCC) for all sectors) x 100
MTX Drop Call Rate
17. 17
Successful call attempt across all sector - carriers
(CAUOSUCC + CAUTSUCC + CAUHSUCC) for all sectors
Unsuccessful Call Attempt across all sector
(CAUOBLKS + CAUTBLKS + CAUHBLKS + CAUORLS + CAUTRLS + CAUHRLS +
CAUORODR + CAUERLFL + CAUHRLFL + MISCFLT + NORFSEFL + NRFSEFHH +
NWKFLBS - (WQTOUT + WQOVFL + WINVALDQ) for all sectors- MCTPRSO - MCTPRST
+ MCTPRRO + MCTPRRT for all frequencies for all sectors
Overall RF Access failures
This metric provides the combined RF access failure for originations & terminations on the
common channels and Hard Handoffs.
(Σ (CAUERLFL + CAUHRLFL) for all sectors / “Total Calls Attempted”) x 100
> NORFS - Non-RF resource failure during origination or termination, NRFSEFHH Non-RF
resource failure during Hard Handoff
> MCTPRST- MCTa Paging channel Redirection Successful for call Termination. Pegged,
along with MCTPGRES and CAUPGRES, when the mobile re-send a page response after
the mobile was redirected to the alternate band.
> WQTOUT - WPS Queue failure due to queue TimeOUT, Wireless Priority Service
Operational Measurements, Winvaldq - WPS total INVALiD originations while Queued.
> NWKFLBS - NetWork rp session FaiLure Before Service connect completion is pegged
when RP session setup failures for packet data calls before service connect completion
> MISCFLT - MISCellaneous Faults
MTX Access Failure Rate
18. 18
Call Attempt Formulas
Traffic Type Call Attempt Formula
Packet Data = CAUSCT3D.(CAUPGRES + CAUOATTS + CAUHATTS)
Total SMS
= CAUDATSC.(SMOCSRAC + SMOATTAC + SMOATBTC +
SMSPGRES + SMSPRRES + SMSDVCAT)
SMS Over Traffic Channel = CAUDATSC.(SMOCSRAC + SMSORATS)
Total Voice (2G + 3G)
= CAUCPSCT.(CAUPGRES + CAUOATTS + CAUHATTS) +
CAUSCT3V.(CAUPGRES + CAUOATTS + CAUHATTS) -
CAUXTFRQ.(MCTPRSO + MCTPRST) -
CAUXTF3V.(MCTPRSO + MCTPRST) +
CAUSCT2.WPSRETRY + CAUST3V2.WPSRETRY
The MCTPRSO and MCTPRST OMs are subtracted in the above formula to account
for the origination or termination attempts that get redirected by MCTA to the alternate
CDMA band resulting in MCTORIGS or MCTPGRES OM being pegged twice in those
events – not really applicable for Bakrie