1 / 16

PRL Enhancements Status

PRL Enhancements Status. December 2004. Agenda. CDG Resolution Supporting PRL Enhancement Benefits of PRL Enhancement Carrier Status Appendix Additional detail on PRL Enhancement solution. CDG Resolution for PRL Enhancement. Mobile Country Codes and Mobile Network Codes ( Operators )

amena-dorsey
Télécharger la présentation

PRL Enhancements Status

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. PRL Enhancements Status December 2004

  2. CDG International Roaming Team Agenda • CDG Resolution Supporting PRL Enhancement • Benefits of PRL Enhancement • Carrier Status • Appendix • Additional detail on PRL Enhancement solution

  3. CDG International Roaming Team CDG Resolution for PRL Enhancement • Mobile Country Codes and Mobile Network Codes (Operators) • Operators obtain and use MCCs and MNCs (IMSI_11_12) for their CDMA network • Use existing broadcast mechanisms for this information (Infrastructure) • Ensuring valid information is being broadcast in the Extended System Parameters message • MCC is mandatory • IMSI_11_12 is mandatory • Enhanced PRL system table entry (PRL) • Allows the description of a system by • SID/NID • MCC/MNC (IMSI_11_12) • Enhanced system determination (Handset) • use the MCC/MNC (IMSI_11_12) scheme in system selection • Backward compatibility (ExistingInfrastructure & Handsets) • Presence of a MCC/MNC (IMSI_11_12) entry in the PRL will not ‘break’ any • existing handset system determination • existing PRL management mechanisms

  4. CDG International Roaming Team PRL Enhancement Resolution - Benefits • Provides a more efficient means to describe a network in a PRL • Knowledge of the use of SIDs and NIDs within a visited network becomes optional • National wireless carriers’ networks may cover a large number of SIDs (tens or hundreds) • Requires no changes to existing standards • Existing messages/fields populated with appropriate data • Does not require that full IMSI support be available in the core network (ANSI-41) for its implementation • Allows for reduction in size of PRLs • Allows international roaming partners to describe a greater number of roaming networks in the same PRL size • More efficient use of memory in the handset of R-UIM • Reduced PRL download times (OTA) • Easier to ensure foreign partners’ information is current

  5. CDG International Roaming Team Implementing the CDG Resolution ITU MCC/MNC Administrator MCC(s) 1 CDG Handset Supplier a Infrastructure Supplier 3 2 Roaming Partner Home Carrier 4 b Network Data Admin i Network Data Admin TDS c Infrastructure Configuration ii iii MS Programming PRL Management MS Programming d e Enhanced PRL Roaming

  6. CDG International Roaming Team Percent Reporting

  7. CDG International Roaming Team Carrier Status

  8. CDG International Roaming Team Timelines Carriers apply for MNCs from their appropriate national regulatory body by April 2004 – In process All carriers confirm with their network vendors that IMSI 11_12 can be correctly broadcast; due April 2004 – In process All carriers begin broadcasting correct MCC/IMSI 11_12 between May and August of 2004 – In process Mobiles available for testing by carriers in July 2004 – In process Surveys will continue to go out to determine current status of these actions

  9. CDG International Roaming Team Appendix PRL Enhancement slides by Andrew Hunter of QUALCOMM for additional background

  10. Every CDMA system broadcasts in system parameters messages System Identification (SID) Network Identification (NID) Mobile Country Code (MCC) IMSI_11_12 (akin to Mobile Network Code - MNC Currently the CDMA granularity of roaming control is the SID/NID pair One description of a particular market within the carriers network as chosen by the carrier Provides good control for the carrier of how to describe the network Now the CDMA operator may describe their network BOTH ways: Using the granularity of SID/NID for its own users and other roaming partners as needed Using the MCC + IMSI_11_12 granularity for roaming partner PRLs that do not require SID/NID information Both can be used in combination SID/NID MCC/IMSI_11_12 SID/NID MCC/IMSI_11_12 SID & /NID MCC & IMSI_11_12 CDG International Roaming Team Identifying a system

  11. PRL Can describe a system by SID/NID MCC/MNC Full backward compatibility is supported. System determination updated system selection software to use the enhanced format Existing system selection will process enhanced format as normal SID/NID entries Use of a valid MCC and IMSI_11_12 ITU issues MCCs Each country administers allocation of Network codes in the US the administrator is Telcordia (www.imsiadmin.org) CDMA air interfaces currently support the broadcast of a 2 digit MNC. (As in GSM) Configuring network to use these values in its broadcasts The network is currently broadcasting something – the manufacturer default if it has not be set by the operator Configuration with the real MCC/MNC values is required for the enhancements to work CDG International Roaming Team PRL enhancements: how they work CSC CDMA/OTA Geo: CountryX BSC MSC System Parameters: {SID=8742, NID=65535} Extended System Parameters: {MCC=310, IMSI_11_12=10} BSC CDMA roamer Abis System Table: Geo entries requires for CountryX Network view of the PRL Enhancements Handset view of the PRL enhancements

  12. CDG International Roaming Team Use of Existing Standards • The resolution does not modify any CDMA standard. • It describes a uniform method for populating and using existing data elements currently in use. • Does not impose any requirements on the use or not of full-IMSI in the core network (ANSI-41). • Describes an encoding convention to describe a system by its MCC and IMSI_11_12 in the SID and NID space of a PRL entry: • MCC10 bits+ IMSI_11_127 bits = 17 bits • SID = 15 bits, NID = 16 bits • Use of NID for MCC9 bits+ IMSI_11_127 bits • Use of 2 special SIDs for MCC10 (values of 0 1nd 1) • Used world wide • Not in use by any other operator

  13. CDG International Roaming Team CDG Coordination Roles • IFAST And Special SIDs • IFAST has approved the following allocation 15904-15905 • Mobile Network Code Convention • Coordinate a proposal to Telcordia on allocation guidelines for CDMA operators’ Mobile Network Codes • Assist in other countries where an MNC usage convention may need to be adopted if required

  14. CDG International Roaming Team Infrastructure Suppliers Impact • Support IMSI aspects on the over the air aspects of the system only • MCC and IMSI_11_12 are sent in the Extended System Parameters Message by the base station • Operators must be able to configure systems to broadcast their own MCC and IMSI_11_12 • Most are broadcasting something other than wildcards • Many have manufacturer default values • No migration to full IMSI in the ANSI-41 Core Network is required

  15. CDG International Roaming Team Handset Suppliers Impacts • Existing handsets and existing System Selection implementations will not be ‘broken’ by encountering an ‘enhanced PRL’ entry • System selection must be upgraded to understand system described in terms of MCC, IMSI_11_12 • New format MCC, IMSI_11_12 records will be ignored by existing system selection implementations. • QCT chipset after April 2004 - MSM6xxx have this functionality • Complying with the new handset specs that operators will produce to require the PRL Enhancement

  16. CDG International Roaming Team Operator Implementation Aspects • Obtaining the valid MCC and IMSI_11_12 for their network(s) • Configuring Infrastructure and verifying the broadcast of valid MCC and IMSI_11_12 values • Informing roaming partners of MCC/IMSI_11_12 values in Technical Data Sheet (TDS) exchange • Specifying the PRL Enhancement behavior in Handset specifications • Building and distributing new PRLs with the more streamlined MCC/MNC entries [MCC, MNC] System Parameters: {SID=8742, NID=65535} Extended System Parameters: {MCC=YYY, IMSI_11_12=xx} TDS Handset Specification [MCC, IMSI_11_12] New PRLs

More Related