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2G (Network Domains, Interfaces), RAN Features, Um Protocol Layers, link…

- - - - BSIC - Base Station Identity Code
        64 values
        
        BCC - Basestation Color Code
        
        NCC - Network Color Code
      - LAI - Location Area ID
        
        MCC - Mobile Country Code
        
        MNC - Mobile Network Code
        
        LAC - Location Area Code
      - CI - Cell ID
      - TSC - Training Sequence Code
      - CGI - Cell Global ID
      - SPID (Subscriber Profile ID)
        (TS 101 746)
      - Global Title
    - - elementary procedures for Mobility Management
        
        mobility management common procedures
        
        IMSI detach procedure
        
        abort procedure
        
        MM information procedure
        
        TMSI reallocation procedure
        
        authentication procedure
        
        identification procedure
        
        mobility management specific procedures
        
        location updating procedure
        
        periodic updating
        
        IMSI attach procedure
        
        generic location updating procedure
        
        connection management sublayer service provision
        
        mobility management connection establishment
        
        mobility management connection information transfer phase
        
        mobility management connection release
        
        GPRS specific mobility management procedures
        
        GPRS attach procedure
        
        GPRS detach procedure
        
        GPRS routing area updating procedure
        
        GPRS common mobility management procedures
        
        GPRS P-TMSI reallocation procedure
        
        GPRS authentication and ciphering procedure
        
        GPRS identification procedure
        
        GPRS information procedure
      - elementary procedures for circuit switched Call Control
        
        mobile originating call establishment
        
        mobile terminating call establishment
        
        signalling procedures during the active state
        
        user notification procedure
        
        call rearrangements
        
        DTMF protocol control procedure
        
        in-call modification
        
        call clearing initiated by the mobile station
        
        call clearing initiated by the network
        
        miscellaneous procedures
        
        in-band tones and announcements
        
        status enquiry procedure
        
        call re-establishment procedure
      - elementary procedures for session management
        
        GPRS session management procedures
        
        PDP context activation
        
        PDP context modification
        
        PDP context deactivation
        
        MBMS context activation
        
        MBMS context deactivation
    - - BSC Timers
        
        Call Setup & Channel Assignment Timers
        
        T3101 (BSC Overload Timer for Immediate Assignment)
        
        T3103
        
        T3105
        
        T3109
        
        T5 (Call Establishment Timer)
        
        T6 (Handover Execution Timer)
        
        T17 (Intra-Cell Handover Timer)
        
        T18 (Assignment Timer)
        
        T3210 (Call Reattempt Timer)
        
        T3230 (Call Setup Timer)
        
        T305 (Release Timer)
        
        Handover Control
        
        T3107
        
        T3111
        
        T3113 (BSC Timer for Queuing Call Setup Requests)
        
        T3124
        
        Radio Link Management
        
        T200
        
        N200
        
        T3122 (Access Retry Delay – Also Used in BSC Overload)
        
        T3126 (Extended Wait Timer – Used in Severe BSC Overload)
        
        Resource Management
        
        T3115
        
        T3117
        
        T313
        
        T314
        
        Access & Retry
        
        T3120
        
        T3128
        
        Miscellaneous
        
        T3119
        
        T3192
      - BTS Timers
        
        Call Setup & Channel Management Timers
        
        T3101
        
        T3103
        
        T3105
        
        Handover-Related Timers
        
        T3107
        
        T3109
        
        T3111
        
        T3113
        
        Radio Link Failure & Recovery Timers
        
        T200
        
        N200
        
        T3122
        
        Power Control & Timing Advance
        
        T3124
        
        T3126
        
        Miscellaneous BTS Timers
        
        T3115
        
        T3117
  - - - Mode of Operation
        
        Class A
        Full simultaneous use of packet and circuit mode connections
        
        Class B
        No simultaneous traffic but automatic sequential service
        
        Class C
        Alternate use or a GPRS-only MS
      - Type-1
        The MS is not required to transmit and receive at the same time
      - Type-2
        The MS is required to transmit and receive at the same time
      - Output power
        
        Class 1
        20 W
        Vehicle and portable
        
        Class 2
        8 W
        Vehicle and Portable
        
        Class 3
        5 W
        handheld
        
        Class 4
        2 W
        Handheld
        
        Class 5
        0.8 W
        Handheld
      - functionality
        
        Full featured MS
        Supports all GSM features, including voice, data, fax, and supplementary services
        
        Limited functionality MS (Class 2): Supports a reduced set of features, typically only voice calls
        
        Data MS (Class 3): Primarily designed for data services.
      - based on mobility
        
        Stationary MS
        
        Portable MS
        
        Mobile MS
      - nw capacbility
        
        Dual-band MS
        GSM 900 and GSM 1800
        
        Tri-band MS
        GSM 900, GSM 1800, and GSM 1900
      - emergency
        
        Emergency Calls Only MS - Can only make emergency calls
        
        Enhanced MS - higher data rates and location services
      - Access Class
        44.018
        22.011 -> 4.3.1 Access Class Barring
        
        Normal Access Class
        
        0-9
        
        Special Access Class
        
        10 - Emergency services (e.g., police, fire, ambulance)
        
        11 - Security services
        
        12 - Public utilities (e.g., electricity, water supply)
        
        13 - Military services
        
        14 - Network administration
        
        15 - Reserved for future use.
    - - MS Features
        
        Basic features
        
        Supplementary features
        
        Additional features
      - MS Power
        
        0.8 W
        
        2 W
        
        5 W
        
        8 W
        
        20 W
    - - 1
      - 2
      - 3
      - 4
      - 5
      - 6
      - 7
      - 8
      - 9
      - 10
        
        Class 10 is one of the most common classes for GPRS devices because it balances uplink, downlink, and total slots effectively.
      - 11
      - 12
      - 13
      - 14
      - 15
      - 16
      - 17
      - 18
      - 19
      - 20
      - 21
      - 22
      - 23
      - 24
      - 25
      - 26
      - 27
      - 28
      - 29
      - 30
      - 31
      - 32
      - 33
        
        5 downlink, 3 uplink, 6 total (used in high-speed EDGE devices).
      - 34-45
        
        Reserved
    - - File Structure
        
        Elementary Files (EF)
        Stores actual data such as IMSI, SMS, contacts, etc
        
        Administrative and Security Files
        
        EF IMSI (International Mobile Subscriber Identity) – Stores the subscriber's unique identity.
        
        EF LOCI (Location Information) – Stores the last known network location.
        
        EF Kc (Ciphering Key) – Holds the encryption key for secure communication.
        
        EF PLMN (Preferred Public Land Mobile Network) – Stores preferred network operators.
        
        EF FPLMN (Forbidden Public Land Mobile Network) – List of networks that the SIM should avoid.
        
        EF AD (Administrative Data) – Contains operator-specific settings.
        
        EF HPLMN (Home PLMN Search Period) – Defines the time interval for searching the home network.
        
        EF ICCID (Integrated Circuit Card Identifier) – Stores the SIM card's unique identifier.
        
        Network and Call Management Files
        
        EF TMSI (Temporary Mobile Subscriber Identity) – Temporary identity used instead of IMSI to protect privacy.
        
        EF LAI (Location Area Identity) – Stores the location area last registered to the network.
        
        EF KcGPRS (GPRS Ciphering Key) – Encryption key for GPRS sessions.
        
        EF BCCH (Broadcast Control Channel Information) – Stores information about network broadcast channels.
        
        EF ACC (Access Control Class) – Defines the access class restrictions.
        
        Phonebook and SMS Storage Files
        
        EF ADN (Abbreviated Dialing Numbers) – Stores contacts in the SIM phonebook.
        
        EF FDN (Fixed Dialing Numbers) – A restricted list of numbers that the SIM user can call.
        
        EF SMS (Short Message Service) – Stores SMS messages.
        
        EF SMSP (SMS Parameters) – Stores service center number and SMS settings.
        
        EF SMSS (SMS Status) – Tracks the number of stored messages.
        
        EF LND (Last Number Dialed) – Stores the last dialed number
        
        Call and Service Control Files
        
        EF MSISDN (Mobile Subscriber ISDN Number) – Stores the mobile number assigned to the SIM.
        
        EF CCP (Capability Configuration Parameters) – Stores call-related settings.
        
        EF LP (Language Preference) – Stores the preferred language settings.
        
        EF PUCT (Price per Unit and Currency Table) – Used for prepaid billing.
        
        EF CBMI (Cell Broadcast Message Identifier) – Stores identifiers for received cell broadcast messages.
        
        Supplementary Services and Operator-Specific Files
        
        EF SPN (Service Provider Name) – Displays the operator's name.
        
        EF OPL (Operator PLMN List) – Stores a list of allowed networks.
        
        EF PN (Preferred Networks) – Preferred networks for roaming.
        
        EF SST (SIM Service Table) – Stores information about available SIM services.
        
        EF ACM (Accumulated Call Meter) – Stores call cost information for prepaid SIMs.
        
        Master Files (MF)
        Root Directory
        
        Dedicated Files (DF)
        Subdirectories for different services (e.g., DF TELECOM, DF GSM)
      - Phases
        
        Phase 1
        
        Phase 2
        
        Phase 2+
  - - - MS Subscription Profile
        
        Subscriber Identity
        
        Authentication and Security Information
        
        Service Subscription Information:
        
        Location Information
        
        Billing and Account Information
        
        Roaming Information
      - HLR Profile
      - VLR Profile
      - AuC Profile
      - EIR Profile
      - MSC Profile
      - BTS Profile
      - BSC Profile
      - SMSC Profile
      - GPRS Profile
    - - MSC Timers
        
        T7 (Overload Control Timer for Call Attempts)
        
        T8 (MSC Overload Protection Timer)
        
        T9 (MSC Congestion Control Timer for Location Updates)
        
        T10 (MSC Overload Timer for SMS)
        
        T322 (Access Class Barring Timer)
        
        T303 (Connection Establishment Timer)
        
        T305 (Signaling Connection Release Timer)
        
        T306 (Timer for Repeated Access Attempts)
        
        T5 (Call Establishment Timer in MSC)
        
        T6 (Handover Execution Timer in MSC)
- - - - Gn (SGSN-GGSN) (SGSN-SGSN)
        
        29.060 - GTP
        29.274 - GTPv2-C ?
        29.281 - GTPv1-U ?
        29.374 - GTPv1-U ?
        29.807 - GTP-C ?
      - Gi.IP (GGSN-PDN)
      - Gr (SGSN-HLR)
      - Gc (GGSN-HLR)
      - Gf (SGSN-EIR)
      - Go (GGSN-IMS)
      - Gs (SGSN-MSC)
      - Gd (SGSN-SMSC)
      - Gp (SGSN-Other PLMN SGSN)
      - Gi.X.25 (GGSN-X.25 Nw)
      - Gb (SGSN - PCU in BSC)
        
        Gb over IP
        
        48.014 - L1
        48.016 - Network
        48.018 - BSS GPRS Protocol (BSS G P)
    - - Abis (BTS-BSC)
        
        48.058 - L3
        48.056 - L2
        48.054 - L1
        48.052 - Interface
        48.051 - General
        12.21 - O&M (OML)
        RSL
        L2ML
        
        Abis over IP
        
        Secure Abis over IP
        
        RSL
        
        OML
      - Ater (BSC-TC)
      - A (BSC/TC-MSC)
        
        48.001 - General
        48.002 - Interface
        48.004 - L1
        48.006 - Signaling
        48.008 - L3
        48.020 - Rate adaption
        
        A over IP
        
        SS7
        
        Pointcode (PC)
        
        Network Identifier (8 bits)
        
        Network Cluster (8 bits)
        
        Node Identifier (8 bits)
      - Um (MS <-> BTS)
    - - Lb (SMLC - PCU in BSC)
      - Lp (SMLC-SMLC)
      - Ls (SMLC-MSC)
      - Lc (GMLC-GSM SCF)
      - Le (GMLC-LRF)
      - Lg (GMLC-MSC)
      - Lh (GMLC-HLR)
      - Lr (GMLC-GMLC)
    - - CBC-SMLC
      - CBC-BSC
        
        48.049
        23.041
        23.038
        23.041
        23.048
        48.049
    - - B (MSC-VLR)
      - C (MSC-HLR)
      - D (VLR-HLR)
      - E (MSC-GMSC) (MSC-MSC) (MSC-SMSC)
      - F (MSC-EIR)
      - G (VLR-VLR)
      - H (HLR-AuC)
- - - - NOM-2
      - NOM-3
      - NOM-1
  - - - Type 1 (TMSI-based)
      - Type 2 (IMSI-based)
      - Type 3 (Group-based)
        Voice Broadcast Service (VBS) or Voice Group Call Service (VGCS)
- - - - NC0
        MS decides
      - NC1
        MS decides
      - NC2
        BSC decides
  - - - GSM - LTE idle cell reselection without NCCR
    - - RIM (RAN Information Management)
        RIM for CSFB (and Fast return to LTE)
        
        Single Reporting
        
        Multiple Reporting
      - Blind Redirection (pre configured)
      - Measurement based redirection
    - - rSRVCC
        (reverse SRVCC)
- - - - DTX in DL for PDCH
      - DTX in DL while in AMR
      - DTX in DL (non AMR)
      - Comfort noise [GSM 06.12]
        
        Background Noise Parameters Evaluation
        
        Comfort Noise Generation Algorithm
        
        Speech Frame Extrapolation
      - VAD - Voice activity detection
      - DTX in DL while in AMR WB
- - - - Selective Call Blocking
        
        Data calls
        
        Less critical voice calls
      - Reduced Channel Allocation
    - - Prioritization
      - Signaling Load Reduction
- - - - GEA3
        (TS 55.216, 217, 218; 55.919)
        for GPRS
    - - A5/0 (no encryption)
      - A5/1 (COMP128-1) - Voice, 64-bit
      - A5/2 (COMP128-2) - 128-bit
        Obsolete
      - A5/3 (COMP128-3) (USA) - 128-bit
        (TS 55.216, 217, 218; TR 55.919)
        for GSM and ECSD
- - - - CLIP (Calling Line Identification presentation)
      - CLIR (Calling Line Identification Restriction)
      - Connected Line Identification Presentation
      - Connected Line Identification Restriction
      - Malicious Call Identification
- - - - IMSI
      - IMEI
- - - - 4-way diversity
      - 2-way diversity
    - - 2-way diversity
      - 4-way diversity
- - - - AMR-HR
        
        AMR 4.75 - 4.75 kbps
        
        5.15 kbps
        
        5.90 kbps
        
        6.70 kbps
        
        7.40 kbps
        
        7.95 kbps
      - AMR-FR (Full Rate)
        
        5.15 kbps
        
        5.90 kbps
        
        6.70 kbps
        
        7.40 kbps
        
        7.95 kbps
        
        10.20 kbps
        
        12.20 kbps
        
        4.75 kbps
    - - AMR-WB-HR :red_cross:
      - AMR-WB+ (Extended AMR-WB) :red_cross:
      - AMR-WB-FR (AMR-Wide Band- Full Rate) :red_cross:
      - Modes
        
        Mode 0: 6.60 kbps
        
        Mode 1: 8.85 kbps
        
        Mode 2: 12.65 kbps
        
        Mode 3: 14.25 kbps
        
        Mode 4: 15.85 kbps
        
        Mode 5: 18.25 kbps
        
        Mode 6: 19.85 kbps
        
        Mode 7: 23.05 kbps
        
        Mode 8: 23.85 kbps
  - - - 8 PSK (EDGE)
      - GMSK (GPRS, EDGE)
    - - MCS-1 (GMSK)
      - MCS-2 (GMSK)
      - MCS-3 (GMSK)
      - MCS-4 (GMSK)
      - MCS-5 (8 PSK)
      - MCS-6 (8 PSK)
      - MCS-7 (8 PSK)
      - MCS-8 (8 PSK)
      - MCS-9 (8 PSK)
    - - CS-1 ~9.05 Kbps, 59.2 Kbps? (highest error protection)
      - CS-2 ~13.4 Kbps, 86.4 Kbps?
      - CS-3 ~15.6 Kbps, 118.4 Kbps ?
      - CS-4 ~21.4 Kbps, 142.8 Kbps
  - - - TCH (DL+UL)
        
        Full-rate TCH (TCH/F, Bm)__DL+UL
        
        Half-rate TCH (TCH/H, Lm)__DL+UL
        
        EFR (Enhanced Full Rate)__DL+UL
        
        AMR FR/HR (Adaptive Multi Rate TCH FR/HR)__DL+UL
      - Voice Channels
        
        Full rate speech (TCH/F)
        
        Half rate speech (TCH/H)
        
        Enhanced Full Rate speech
      - Data Channels
        
        TCH/F9.6
        
        TCH/F4.8
        
        TCH/F2.4
        
        TCH/H4.8
        
        TCH/H2.4
    - - BCH (DL)
        
        BCCH (Broadcast control)__DL
        
        FCCH (Frequency correction)__DL
        
        SCH (Synchronization)__DL
        
        CBCH (Cell Broadcast)__DL
      - CCCH
        
        RACH (Random access)__UL
        
        AGCH (Access grant)__DL
        
        PCH (Paging)__DL
        
        NCH (Notification)__DL
      - DCCH (DL+UL)
        
        Fast
        
        FACCH (Fast associated control)__DL+UL
        
        SDCCH (Stand-alone dedicated control)__DL+UL
        
        Slow
        
        SACCH (Slow associated control)__DL+UL
  - - - 100 KHz
  - - - Super Frame
        (1 Super frame = 51 Traffic multi frames)
        (1 super frame = 26 Control multi frame)
        1 Super frame = 51*26 = 1326 frames
        
        Traffic multi frame
        (1 Traffic multi frame = 26 frames)
        
        TDMA Frame
        4.615 mSec
        
        Time slot
        156.25 bits
        577 uSec
        1 Frame = 8 Timeslots
        
        NB - Normal Burst
        3 TB + 58 encrypted bits + 26 traning sequence + 58 encrypted bits + 3 TB + 8.25 GP
        
        FB - Frequency correction Burst
        3 TB + 142 Fixed bits + 3 TB + 8.25 GP
        
        SB - Synchronization Burst
        3 TB + 39 encrypted bits + 64 sync sequence + 39 encrypted bits + 3 TB + 8.25 GP
        
        AB - Access Burst
        8 TB + 41 Sync Sequence + 36 encrypted bits + 3 TB + 68.25 GP
        
        Control multi frame
        (1 Control Multi frame = 51 frames)
        
        TDMA Frame
        4.615 mSec
- - - - GSM Phase 2
        
        SI-7
        
        Support for additional network features and extended capacity.
        GPRS-specific system information, such as routing area updates
        
        SI-8
        
        Support for additional network features and extended capacity.
        GPRS-specific system information, such as routing area updates
        
        SI-9
        
        Support for additional network features and extended capacity.
        
        SI-13
        
        Introduced for broadcast information about the Cell Broadcast Service (CBS), such as emergency messages.
        Packet System Information: GPRS/EDGE parameters like the Packet Control Channel (PCCCH) configuration.
        
        SI-5
        
        Provides information about extended neighbor cells (used for improved handover and cell reselection).
        List of neighbor cells used for handovers (sent on SACCH).
        
        SI-6
        
        Contains information for extended frequency hopping and additional neighbor cell details.
        Similar to SI5 but mainly for GPRS cell re-selection parameters
        
        SI 5bis
        
        Extended neighbor cell list for handovers (more frequencies)
        
        SI 5ter
        
        More detailed inter-RAT (GSM to UMTS) handover information.
      - GSM Phase 1
        
        SI-2
        
        Contains detailed information about the serving cell's configuration, including time slots and frequency hopping
        Neighbor cell information: ARFCN (Absolute Radio Frequency Channel Number) of neighboring cells for handover.
        Neighbor Cell List (NCL)
        
        SI-3
        
        Details the serving cell’s identity, including the LAI (Location Area Identity), cell identity, and other parameters like maximum transmitter power.
        Cell identity and location area information (LAI), Access Class Barring (ACB), and network control parameters
        
        SI-4
        
        Provides additional network configuration details.
        Similar to SI3, with additional cell selection and reselection parameters.
        
        SI-1
        
        Provides neighboring cell descriptions and ARFCNs
        Cell selection parameters: LAI (Location Area Identity), Cell identity, BCCH allocation list, and power control information
        
        SI 2bis
        
        Additional neighbor cell frequencies (beyond what SI2 can carry)
        
        SI 2ter
        
        Extended neighbor cell information, including cells from other networks (e.g., inter-RAT with UMTS).
        
        SI 2quater
        
        Information about inter-system handovers (e.g., GSM to UMTS/3G).
      - GSM Phase 2+
        
        SI 22
        
        domain-specific access control
        
        SI 16
        
        Extended system information (rarely used in modern networks).
        
        SI 17
        
        Used for Extended Cell Selection parameters (mainly in advanced GSM networks)
        
        SI 21
        
        Extended Access Barring (EAB)
      - SI 3 -> SI 22 -> SI 23
      - SI-14
      - SI-13 alt
      - SI 15
      - SI 18
      - SI 19
      - SI 20
      - SI 23
- - - - A
        
        MSC
        
        GMSC
        
        PSTN
        
        Other PLMN
        
        ISDN
        
        EIR
        
        HLR
        
        AuC
        
        VLR
        
        SMSC
        
        SMLC
      - SGSN
        
        GGSN
        
        Internet
        
        IMS
      - CBC
        
        CBE