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Revision B, April 1, 2002

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TDMA Third Generation Wireless- R-Data/SMDPP Transport

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ANSI APPROVED: 09/18/2013
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R-DATA and SMDPP (Short Message Delivery – Point-to-Point) are the messages that are used for information transfer through the TIA/EIA-136 air interface and the TIA/EIA-41 network interface. The purpose of this chapter is to demonstrate the transport of R-DATA messages through the TIA/EIA-41 SMDPP and vice versa. Figure 1 illustrates the network model for information transfer between the air and network interfaces.

The mechanism for information transfer between a source and a destination through the BMI is called a teleservice. The source maybe a mobile station or a Teleservice Server (TS). A teleservice is delivered across the TIA/EIA-136 air interface on a DCCH or DTC inside a layer 3 R-DATA message, and across the TIA/EIA-41 network interface inside a layer 3 Short Message Delivery Point-to-Point (SMDPP) Invoke message. The delivery of the layer 3 message may be acknowledged by the destination in a TIA/EIA-136 R-DATA ACCEPT or R-DATA REJECT message and a TIA/EIA-41 SMDPP Return (smdpp) Result message. The BMI provides the interworking between the Teleservice Server and the mobile station by translating between the TIA/EIA-136 and TIA/EIA-41 protocols.

A teleservice may be delivered in point-to-point mode or broadcast mode. It may be text based, such as Cellular Messaging Teleservice (CMT), or it may be coded information destined for the mobile station's storage and use, such as Over-the-Air Activation Teleservice (OATS) and Over-the-Air Programming Teleservice (OPTS). The teleservice protocol stack is as shown in Figure 2.