NGN is a packet-based network able to provide Telecommunication Services to users and able to make use of multiple broadband, QoS-enabled transport technologies and in which service-related functions are independent of the underlying transport-related technologies. It enables unfettered access for users to networks and to competing service providers and services of their choice. It supports generalized mobility which will allow consistent and ubiquitous provision of services to users.
The document provides an overview of IMS (IP Multimedia Subsystem) in next generation networks. It describes what IMS is, key components of the IMS architecture like CSCF (Call Session Control Function), HSS (Home Subscriber Server), AS (Application Server), and how IMS uses protocols like SIP and SDP. It also provides high-level descriptions of IMS operations during registration, origination of sessions to IMS and PSTN subscribers.
The document is a technical report about Next Generation Networks (NGN) that includes chapters summarizing various components of NGN such as VoIP, signaling protocols, Softswitch, UMG, MRS, signaling gateway, TMG, AMG and commands. The acknowledgments section at the beginning thanks various colleagues and professionals who provided guidance and support to the author in understanding NGN technologies.
The document discusses next generation networks (NGN) and IP Multimedia Subsystem (IMS). NGN aims to converge different access networks onto a single all-IP infrastructure to seamlessly deliver multimedia services. IMS is an architectural framework for delivering IP-based services to users on both fixed and mobile networks. It provides session control functions and enables real-time multimedia services like voice and video over packet networks.
The document discusses the transition from existing telecommunications networks to Next Generation Networks (NGNs). It defines NGNs as packet-based networks that can provide telecommunication services using multiple broadband technologies. The key aspects covered include the NGN architecture consisting of access, core, control and service layers, protocols used in NGNs like SIP and key NGN services like voice, multimedia and VPNs. It concludes that NGNs will be the foundation for new multimedia applications and an evolution from separate networks to a single network capable of carrying all services.
The document provides an introduction to 2G/3G and 4G core mobile networks. It discusses key network elements like BTS, BSC, RNC, SGSN, GGSN, eNodeB, MME, S-GW and P-GW. It provides an overview of the differences between circuit switching and packet switching. It also summarizes simplified call flows for 2G/3G packet data and 4G, highlighting the core network elements involved and interfaces between them.
NGN is a packet-based network able to provide Telecommunication Services to users and able to make use of multiple broadband, QoS-enabled transport technologies and in which service-related functions are independent of the underlying transport-related technologies. It enables unfettered access for users to networks and to competing service providers and services of their choice. It supports generalized mobility which will allow consistent and ubiquitous provision of services to users.
The document provides an overview of IMS (IP Multimedia Subsystem) in next generation networks. It describes what IMS is, key components of the IMS architecture like CSCF (Call Session Control Function), HSS (Home Subscriber Server), AS (Application Server), and how IMS uses protocols like SIP and SDP. It also provides high-level descriptions of IMS operations during registration, origination of sessions to IMS and PSTN subscribers.
The document is a technical report about Next Generation Networks (NGN) that includes chapters summarizing various components of NGN such as VoIP, signaling protocols, Softswitch, UMG, MRS, signaling gateway, TMG, AMG and commands. The acknowledgments section at the beginning thanks various colleagues and professionals who provided guidance and support to the author in understanding NGN technologies.
The document discusses next generation networks (NGN) and IP Multimedia Subsystem (IMS). NGN aims to converge different access networks onto a single all-IP infrastructure to seamlessly deliver multimedia services. IMS is an architectural framework for delivering IP-based services to users on both fixed and mobile networks. It provides session control functions and enables real-time multimedia services like voice and video over packet networks.
The document discusses the transition from existing telecommunications networks to Next Generation Networks (NGNs). It defines NGNs as packet-based networks that can provide telecommunication services using multiple broadband technologies. The key aspects covered include the NGN architecture consisting of access, core, control and service layers, protocols used in NGNs like SIP and key NGN services like voice, multimedia and VPNs. It concludes that NGNs will be the foundation for new multimedia applications and an evolution from separate networks to a single network capable of carrying all services.
The document provides an introduction to 2G/3G and 4G core mobile networks. It discusses key network elements like BTS, BSC, RNC, SGSN, GGSN, eNodeB, MME, S-GW and P-GW. It provides an overview of the differences between circuit switching and packet switching. It also summarizes simplified call flows for 2G/3G packet data and 4G, highlighting the core network elements involved and interfaces between them.
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หลักการทำงานของอุปกรณ์และคอมพิวเตอร์ในการเชื่อมต่อ internet
ประเภทของอุปกรณ์
เทคโนโลยีการส่งข้อมูล
เราสามารถเข้าสู่ internet ได้อย่างไรถ้าเราอยู่ที่บ้านหรือห้อพักของเรา
ต้องใช้อุปกรณ์อะไรบ้าง
หลังการทำงานของอุปกรณ์และคอมพิวเตอร์ในการเชื่อมต่อ internet
ประเภทของอุปกรณ์
เทคโนโลยีการส่งข้อมูล
เราสามารถเข้าสู่ internet ได้อย่างไรถ้าเราอยู่ที่บ้านหรือหอพักของเรา
ต้องใช้อุปกรณ์อะไรบ้าง
เทคโนโลยีในการส่งข้อมูลของโมเด็ม
หลักการทำงานของอุปกรณ์และคอมพิวเตอร์ในการเชื่อมต่อ internet
ประเภทของอุปกรณ์
เทคโนโลยีการส่งข้อมูล
21. NGN Total Solution Signalling gateway access gateway IAD Broadband PSTN WLL Media gateway Video Gateway PLMN/3G Packet Core Packet Core Bearer control layer Policy Control System IP bearer core network SBC Soft phone IN service NMS Access gateway 3 rd party AS SIP/MGCP/H.323 Phone SHLR Home Gateway Service & Management Network Control Core Switching Edge Access Terminals meeting Conference service Media resource Access gateway Media Gateway Media gateway Softswitch Softswitch WiFi Phone 3G Terminal POTS/ISDN 2G/WLL Terminal
22. NGN Strategy for fixed Network Replace out-dated equipments Bring voice additional value Bring broadband additional value SDH / MSTP AG AG AG IAD SoftSwitch TG TG Centralized Database IP DSLAM RTU Aged subscriber lines acquire new technology. Remaining PSTN Broadband is not pipeline any more !
23. ASP/ISP NSP CPE Home Network NMS TL1/CORBA /API AAA Server BB service platform Carrier’s OSS Notification Trend to Commercial deployment VoD Server IP Core MSE Ethernet IPTV Phone PC IAD CPE/HG DSLAM/ MSAN Middle ware NGN application for Triple Play Solution -Advantage : for customer for single contact & payment -Broadband : Service provider utilize resource &facility . -Content : service provider concentrate on Applications . Softswitch Internet