The document discusses the GSM protocol stack and frame formatting. It describes the different layers of the protocol stack including the physical layer which handles radio transmission, the data link layer which provides error-free transmission, and the networking layer which is responsible for communication between network resources and mobility. It also discusses the signaling system 7 (SS7) standard and various application protocols used in GSM like BSSAP, BSSMAP, DTAP, ISUP, MAP, and TCAP. Furthermore, it explains the concepts of physical and logical channels in GSM and how logical channels can be mapped to physical channels.
LTE Basic Parameters, Data Rates, Duplexing & Accessing, Modulation, Coding & MIMO, Explanation of different nodes and Advantage & Disadvantages of different nodes.
LTE Basic Parameters, Data Rates, Duplexing & Accessing, Modulation, Coding & MIMO, Explanation of different nodes and Advantage & Disadvantages of different nodes.
Abis Over IP/Abis Optimization on-site Workshopetkisizcom
Recognize new system architecture
Understand the dimensioning rules using the Abis planning tools
Activate the Abis over IP
Activate the Abis Optimization
Use the Performance Monitoring
• -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
Topics covered in this presentation:
1. RF spectrum and GSM specifications
2. FDMA and TDMA
3. Digital Voice Transmission
4. Channel coding, Interleaving and Burst formatting
5. GMSK
6. Frame structure of GSM
7. Corrective actions against multipath fading
Abis Over IP/Abis Optimization on-site Workshopetkisizcom
Recognize new system architecture
Understand the dimensioning rules using the Abis planning tools
Activate the Abis over IP
Activate the Abis Optimization
Use the Performance Monitoring
• -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
Topics covered in this presentation:
1. RF spectrum and GSM specifications
2. FDMA and TDMA
3. Digital Voice Transmission
4. Channel coding, Interleaving and Burst formatting
5. GMSK
6. Frame structure of GSM
7. Corrective actions against multipath fading
Introduction of GPRS
QoS in GPRS
GPRS Network Architecture
GPRS Network Operation
Data Service,
Application,
Limitation In GPRS
Billing and Charging In GPRS
High-Tech Telecommunication (4G/LTE) overview with focus on new servicesHamidreza Bolhasani
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معرفی روند فناوری های نوین مخابراتی (نسل 4) با تأکید بر سرویسهای جدید
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3. Physical Layer Radio Transmission (BTS – MS)
www.rsmangrulkar.com GSM Protocol Stack and Frame Formatting
4. Physical Layer Radio Transmission (BTS – MS)
Data Link Layer Provides errorfree transmission
between adjacent entities based on ISDN’s LAPD
Protocol for the Um and Abis Interface.
www.rsmangrulkar.com GSM Protocol Stack and Frame Formatting
5. Physical Layer Radio Transmission (BTS – MS)
Data Link Layer Provides errorfree transmission
between adjacent entities based on ISDN’s LAPD
Protocol for the Um and Abis Interface.
Networking or Messaging Layer Responsible for
communication between various network resources,
mobility, code format and call related management
messages between various network entities.
www.rsmangrulkar.com GSM Protocol Stack and Frame Formatting
6. Physical Layer Radio Transmission (BTS – MS)
Data Link Layer Provides errorfree transmission
between adjacent entities based on ISDN’s LAPD
Protocol for the Um and Abis Interface.
Networking or Messaging Layer Responsible for
communication between various network resources,
mobility, code format and call related management
messages between various network entities.
www.rsmangrulkar.com GSM Protocol Stack and Frame Formatting
7. Physical Layer
Handles all radiosp. functions
Creates burst according to 5 different formats
multiplexing of burst into TDMA frame
Idle channel detection and quality measurement
Channel coding and error detection.
voice activity detection (VAT)
www.rsmangrulkar.com GSM Protocol Stack and Frame Formatting
10. Data Link Layer
LAPD channel of ISDN
LAPDm light weight LAPD (Eliminates synchronization
flags and error detection)
LAPDm offers
Resequencing of data frames
Flow Control
Segmentation and Reassembly of data
Ack / UnAck of data
Data tr. used PCM(64 kbps channels)
contains A interface leased lines with 2.048Mbps capacity
Channel coding and error detection.
voice activity detection (VAT)
www.rsmangrulkar.com GSM Protocol Stack and Frame Formatting
12. Network Layer
Radio Resource Management.
Call Setup , Maintenance and release of radio channel.
Mobility Management
RAIL(Registration, Authentication, Identification,
Location updating)
Provision for TMSI(Temorary Mobile Subscription
Identity)
Call Management
Call Control, Short Messaging Service, Supplementary
services
www.rsmangrulkar.com GSM Protocol Stack and Frame Formatting
13. Additional Protocols: Signaling System 7
Signaling System 7 (SS7) is an international
telecommunications standard that defines how network
elements in a public switched telephone network (PSTN)
exchange information over a digital signaling network.
Nodes in an SS7 network are called signaling points.
www.rsmangrulkar.com GSM Protocol Stack and Frame Formatting
14. Additional Protocols: Signaling System 7
Signaling System 7 (SS7) is an international
telecommunications standard that defines how network
elements in a public switched telephone network (PSTN)
exchange information over a digital signaling network.
Nodes in an SS7 network are called signaling points.
Three kinds of network points signaling points: Service
Switching Points (SSPs), Signal Transfer Points (STPs),
and Service Control Points (SCPs).
www.rsmangrulkar.com GSM Protocol Stack and Frame Formatting
15. Additional Protocols: Signaling System 7
Signaling System 7 (SS7) is an international
telecommunications standard that defines how network
elements in a public switched telephone network (PSTN)
exchange information over a digital signaling network.
Nodes in an SS7 network are called signaling points.
Three kinds of network points signaling points: Service
Switching Points (SSPs), Signal Transfer Points (STPs),
and Service Control Points (SCPs).
Traffic on the SS7 network is routed by packet switches
called STPs.
www.rsmangrulkar.com GSM Protocol Stack and Frame Formatting
17. * Interfacing the PSTN, the MSC performs call signalling
functions using the Telephone User Part (TUP), or interfacing
the ISDN, the ISDN User Part (ISUP).
* Between the MSC and the BSC, the Base Station System
Management Application Part (BSSMAP) is used.
The Direct Transfer Application Part (DTAP) is used to send
messages between the MSC and the mobile (MS). MAP is
used between the MSC and the VLR, EIR, and HLR.
www.rsmangrulkar.com GSM Protocol Stack and Frame Formatting
18. BSSAP Base Station System Application Part
BSSMAP Base Station System Management Application Part
DTAP Direct Transfer Application Part
ISUP ISDN User Part
MAP Mobile Application Part
SCCP Signalling Connection Control Part
TUP Telephone User Part
TCAP Transaction Capabilities Application Part
www.rsmangrulkar.com GSM Protocol Stack and Frame Formatting
25. The physical channel is the medium over which the
information is carried.
The logical channel consists of the information carried over the
physical channels.
www.rsmangrulkar.com GSM Protocol Stack and Frame Formatting
26. A Physical Channel (a TS, defined by a fixed position (0 to 7) on a given TDMA frame) may be used to
broadcast messages containing different kinds of information:
traffic messages for speech and data,
signaling messages for different procedures and supplementary services,
synchronization messages for temporal and logical synchronization between the mobile stations and the
BTS,
measurements messages for uplink report of the downlink measurements,
control messages to manage the access to the network.
All these kinds of messages are classified in Logical Channels. Depending on the quantity of information to
transmit and on their consistency,
several logical channels may be mapped onto one physical channel, in order to use its successive Time
Slots as much as possible (optimization of the resources number by maximizing the occupancy duration of
each).
As a conclusion: Physical Channel : information container Logical Channel : specification of the
information global content
www.rsmangrulkar.com GSM Protocol Stack and Frame Formatting
