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Thread: UMTS UTRAN Call Flow Scenarios - CS and PS

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    Post UMTS UTRAN Call Flow Scenarios - CS and PS

    UMTS Call Flow Scenarios - An Overview of Circuit and Packet Call Flow Scenarios

    For ease of understanding the Call Flow Scenarios will be split into 6 parts.


    1. Node B Initialisation
    2. Cell “Camp-on” / Location Update
    3. Circuit Switched Call set-up

    The following steps need to be executed in order for a mo call to complete
    • RRC Connection Setup
    • Service Request
    • Security Procedures (Identity / Authentication / Security mode)
    • Call Setup Request
    • Radio Link and RAB Configuration
    • Call Connection

    4. Circuit Switched Call tear-down
    The following steps need to be executed in order for the mobile to tear-down the call.
    • Initiate Call Release
    • Initiate Iu Release Procedure
    • Release Iu Connection to MSC for UE
    • Release RRC Connection to UE
    • Delete Radio Link Resources in UTRAN
    • Delete Radio Link Resources in UTRAN

    5. Packet Switched Call set-up
    The following steps need to be executed in order for a mo call to complete.
    • Establish an RRC connection to the UTRAN
    • Establish an Iu connection to the CN
    • Make an Attach Request
    • Carry out Security Procedures
    • Complete the Attach
    • Request PDP context activation
    • Set-up RAB’s for the connection
    • Create GTP connections and activate PDP Context at the GGSN
    • Data Transfer

    6. Packet Switched Call tear-down
    The following steps need to be executed in order for a mo call tear down to complete.
    • PDP Context Deactivate request from UE
    • Radio Link Setup
    • Iub Transport Bearer Setup
    • DCH-FP Synchronization
    • Connection Setup
    • Attach Procedure
    • Authentication and Security Procedures
    • PDP Context Activation Procedure
    • Radio Link and RAB Configuration
    • Data Transfer

    Download to read more....

    UMTS_UTRAN Call Flow-CS and PS.zip

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    Post Another good Doc ( WCDMA Radio Network Capacity Planning)

    Contents
    1. Traffic Model
    2. Interference Analysis
    3. Capacity Dimensioning
    4. CE Dimensioning
    5. Network Dimensioning Flow

    Attached Files Attached Files

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