1 / 11

H.323 Mobility Overview

H.323 Mobility Overview. Narjala Bhasker Intel Corporation narjala.bhasker@intel.com. What is the mobility problem?. Terminal Mobility User Mobility Service Mobility Interworking. Terminal Mobility. Uninterrupted service as a result of communications problems caused by terminal movement

tocho
Download Presentation

H.323 Mobility Overview

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. H.323 Mobility Overview Narjala Bhasker Intel Corporation narjala.bhasker@intel.com

  2. What is the mobility problem? • Terminal Mobility • User Mobility • Service Mobility • Interworking

  3. Terminal Mobility • Uninterrupted service as a result of communications problems caused by terminal movement • Resilience to radio channel impairments • Smooth handover from one radio cell site to another • Recovering from change of IP address as a result of a network point of attachment changing • Recovering from a change of serving gatekeeper • Handover and roaming must both be supported • Handover: changes during a call • Roaming: changes between calls

  4. User Mobility • A user must have access to all subscribed services independent of the terminal used • User login • User profile • Separate terminal authentication

  5. Service Mobility • A user must be able to access all subscribed services even if he is served by a different network than his home network

  6. H.323 Mobile Network New H.246 New Out of Scope New Mobile H.323 PSTN New Interworking

  7. Internet H.323 to PLMN* Interworking *PLMN = Public Land Mobile Network Mobile H.323 Gateway • Mobile subscribers can access all services from an IP network • Voice calls, voice mail notification, short message service Mobile Network H.323 Phone Looks like Cell site from PLMN (e.g., MSC,VLR) Looks like PSTN Gateway (H.323 GW/GK) from H.323 network

  8. H.323 Mobility Technical Issues • Is mobility management an application issue or a network issue? • Rely on the radio link layer for error control? • Rely on mobile IP for operation after IP address change? • How much integration is required with the various PLMNs (ANSI 41, GSM, PDC, …) • Common user and terminal identification?

  9. Status • H.323 Annexes to be defined for mobility • Annex I: Deals with radio channel impairments • Annex J: Control protocols for terminal, user and service mobility • Terms of Reference being finalized • Probable ITU “determination” late 2000 • H.323-PLMN interworking may happen earlier

  10. Thank You! Narjala Bhasker Intel Corporation narjala.bhasker@intel.com

More Related