INTRODUCTION

This Telecommunications Systems Bulletin (TSB) applies to TIA/EIA/IS-95-A. It introduces support for the following new capabilities:

•14.4 kbps Data Rate - This provides physical layer, multiplex layer and signaling layer support for a new family of transmission rates, including 14.4 kbps, 7.2 kbps, 3.6 kbps and 1.8 kbps rates.

• Enhanced Service Negotiation - This provides the means for establishing a common service configuration for use by the mobile station and base station. The service configuration can include multiple active service options and can maker's of both primary and secondary traffic. Backward compatibility with service option negotiation, as specified in TIA/EIA/IS-95-A, is maintained.

•Enhanced Status Messaging - This provides the means for the base station to ascertain the detailed capabilities of the mobile station, such as supported band classes, operating modes, service options, multiplex options, and rate sets.

•Redirection and Handoff to PCS - This provides the means for redirecting and handing off the mobile station to a digital wideband spread spectrum system operating within the 1.8 to 2.0 GHz frequency range, as specified by ANSI J-STD-008, and permits the mobile station to select a PCS system during the system selection process.

•MIN to IMSI Transition Support - This provides an improved means for making the transition from MIN-based addressing to IMSI-based addressing.

This TSB uses the same structure and section numbering as TIA/EIA/IS-95-A. Sections of this TSB that remain unchanged relative to IS-95-A are represented using ellipses contained within brackets ([...]). Modified sections are either reproduced in their entirety or use the [...] notation to represent unchanged portions. Within modified sections, change bars indicate the specific paragraphs, figures, or table cells that have changed. Within modified paragraphs and table cells. strike-throughs indicate deleted text and underlines indicate new text.