PRL Enhancements Status

Transcription

1 PRL Enhancements Status December 2004

2 Agenda CDG Resolution Supporting PRL Enhancement Benefits of PRL Enhancement Carrier Status Appendix Additional detail on PRL Enhancement solution 2

3 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 (Existing Infrastructure & 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 3

4 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 4

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

6 Percent Reporting NA USA 23% 16% AP CALA EUR-RUS AFR-ME ALL CAN E ASIA S ASIA SE ASIA OCEANIA CARIB LATAM EUR-RUS AFR ME 80% 12% 20% 8% 11% 17% 17% 9% 20% 6% 6% 0% 0% 0% 14% 6

7 Carrier Status Country Operator Name Last Report Date Network Capable MCC MNC Ntwrk Test Bcast Rollout Full NW Bcast China China Unicom 11/01/04 Yes Brazil VIVO 12/01/04 N 724-XX Canada Aliant Telecom Mobility 11/01/ Canada Bell Mobility 11/01/ Canada Manitoba Telecom Services (MTS) 11/01/04 2Q Canada Telus/Clearnet 11/01/04 2Q Dominican Republic Verizon Dominicana 11/01/ New Zealand Telecom New Zealand 12/12/04 1Q Japan KDDI 05/28/04 Multiple Kyrgyzstan AkTel LLC (FONEX) 05/28/ Mexico Iusacell 12/01/04 N N Mexico Unefon 12/01/04 N N Nicaragua BellSouth Nicaragua 05/28/ * Panama BellSouth Panama 05/28/ Russia Delta Telecom 05/28/ Thailand Hutchison (CAT) 05/28/ /02 United States Alltel 12/01/ United States Midwest Wireless 12/01/04 1Q ?? United States Sprint PCS 11/01/04 2Q ?? United States US Cellular United States Verizon Wireless 12/01/04 12/01/

8 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 8

9 Appendix PRL Enhancement slides by Andrew Hunter of QUALCOMM for additional background 9

10 Identifying a system SID/NID MCC/IMSI_11_12 SID/NID MCC/IMSI_11_12 SID & /NID MCC & IMSI_11_12 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 10

11 PRL enhancements: how they work CSC CDMA/OTA Permitted Systems Carrier - System (SID, NID) or (MCC/MNC) Selection Pref Roaming Indicator Acquisition Index MCC/MCC=310,10 First ON 0 MCC/MCC=310,42 Second ON 0 System Table: Geo entries requires for CountryX Geo: CountryX Geo: CountryX System Parameters: {SID=8742, NID=65535} Extended System Parameters: {MCC=310, IMSI_11_12=10} CDMA roamer Abis BSC MSC BSC Handset view of the PRL enhancements 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 Network view of the PRL Enhancements 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 ( 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 11

12 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: MCC 10 bits + IMSI_11_12 7 bits = 17 bits SID = 15 bits, NID = 16 bits Use of NID for MCC 9 bits + IMSI_11_12 7 bits Use of 2 special SIDs for MCC 10 (values of 0 1nd 1) Used world wide Not in use by any other operator 12

13 CDG Coordination Roles IFAST And Special SIDs IFAST has approved the following allocation 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 13

14 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 Field PILOT_PN CONFIG_MSG_SEQ DELETE_FOR_TMSI USE_TMSI PREF_MSID_TYPE MCC IMSI_11_12 TMSI_ZONE_LEN TMSI_ZONE BCAST_INDEX IMSI_T_SUPPORTED P_REV MIN_P_REV SOFT_SLOPE ADD_INTERCEPT DROP_INTERCEPT PACKET_ZONE_ID MAX_NUM_ALT_SO RESELECT_INCLUDED Length (bits) x TMSI_ZONE_LEN

15 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 MSM6xxx have this functionality Complying with the new handset specs that operators will produce to require the PRL Enhancement 15

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