FOREWORD

(This foreword is not part of this Standard)

This Standard was prepared by Technical Specification Group C of the Third GenerationPartnership Project 2 (3GPP2). This Standard contains the air interface requirements for facilitating interworking between cdma2000^®1 HRPD and 1x systems. This specificationapplies to 1x Release 0 or higher mobile stations and base stations. This specificationapplies to all releases of HRPD access terminals and access networks.

This is a supplementary specification to the 1x and HRPD air interface specifications.

This Standard consists of the following sections:

1. General. This section defines the acronyms and terms used in this document.

2. HRPD Notification in a 1x System. This section defines the procedures for notifying a mobile station of the arrival of mobile terminated data on the HRPD system.

3. HRPD System Information. This section defines the format and correspondingprocedures for the Alternative Technologies Information Message.

¹ cdma2000® is the trademark for the technical nomenclature for certain specifications and standards of the Organizational Partners (OPs) of 3GPP2. Geographically (and as of the date of publication), cdma2000® is a registered trademark of the Telecommunications Industry Association (TIA-USA) in the United States.