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Voice over LTE EPS and IMS Networks von Perez, André (eBook)

  • Erscheinungsdatum: 03.09.2013
  • Verlag: Wiley-ISTE
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Voice over LTE

Voice over LTE (Long Term Evolution) presents the mechanisms put in place in 4G mobile networks for the transportation of IP packets containing voice data and telephone signaling, as well as the technologies used to provide a telephone service in the IMS (IP Multimedia Sub-system) network. Despite the difficulty connected to the handover of the 4G network to the 2G/3G network, a telephone communication will not be established on the 4G network. This book analyzes the technologies that have been put in place, such as CSFB (Circuit Service FallBack), an interim solution that enables a mobile connected to the 4G network to receive an alert transmitted by the 2G/3G network. The book also goes on to develop the SIP (Session Information Protocol) on which the telephone signaling transferred by the 4G network is based, the IMS network that provides the service and defines the routing, the SRVCC (Single Radio Voice Call Continuity) mechanism that maintains communication and the TAS (Telephony Application Server) that supplies supplementary services. Contents 1. The EPS Network. 2. The LTE Interface. 3. The CSFB Function. 4. SIP and SDP Protocols. 5. The IMS Network. 6. Telephone Services. 7. The SRVCC Function. About the Authors André Perez is a consultant and teacher in networks and telecommunications. He works with industrialists and operators regarding architecture studies and leads training on the 4G and IMS networks for NEXCOM. André Perez is a consultant and a trainer in networks and telecommunications, who defines the implementation of operator networks. He also teaches network technologies in engineering and technical schools.


    Format: ePUB
    Kopierschutz: AdobeDRM
    Seitenzahl: 256
    Erscheinungsdatum: 03.09.2013
    Sprache: Englisch
    ISBN: 9781118648841
    Verlag: Wiley-ISTE
    Serie: ISTE
    Größe: 3779 kBytes
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Voice over LTE


AAA Authorization-Authentication-Answer AAL2 ATM Adaptation Layer 2 AAR Authorization-Authentication-Request ACM Address Complete Message ACR Anonymous Communication Rejection AM Acknowledged Mode AMR Adaptive Multi-Rate ANM Answer Message APN Access Point Name ARQ Automatic Repeat reQuest AS Application Server ASA Abort-Session-Answer ASR Abort-Session-Request ATCF Access Transfer Control Function ATGW Access Transfer Gateway ATM Asynchronous Transfer Mode
B2BUA Back-to-Back User Agent B2BUA Broadcast Control Channel BCH Broadcast Channel BGCF Breakout Gateway Control Function BICC Bearer Independent Call Control BICC Base Station Sub-system BSSMAP BSS Management Application Part
CCBS Completion of Communications to Busy Subscriber CCCH Common Control Channel CCNL Completion of Communications on Not Logged-in CCNR Completion of Communications on No Reply CD Communication Deflection CDF Charging Data Function CDIV Communication Diversion CDR Charging Data Record CFB Communication Forwarding on Busy user CFI Control Format Indicator CFNL Communication Forwarding on Not Logged-in CFNR Communication Forwarding on No Reply CFU Communication Forwarding Unconditional CGF Charging Gateway Function CM Call Management CQI Channel Quality Indicator C-RNTI Cell Radio Network Temporary Identity CS Circuit Service CSCF Call Session Control Function CSFB Circuit Service FallBack CTF Charging Trigger Function CW Communication Waiting
DCCH Dedicated Control Channel DCI Downlink Control Information DFTS Discrete Fourier Transform Spread DL-SCH Downlink Shared Channel DNS Domain Name System

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