The present document specifies a Reliable Data Service (RDS) protocol between the UE and Service Capability Exposure Function (SCEF).
The present document defines the frame structure, format of fields and procedures for operation of the RDS protocol. RDS is mainly intended to be used for acknowledged data transfer, but it also supports unacknowledged data transfer.
The present document is applicable to the UE and to the SCEF in the Evolved Packet System (EPS).
for V14, V15:
(F) RDS handling when retransmission count exceeds N200
| (F) Max Length of RDS information Field
| (F) Clarification on SACK bitmap usage
| (F) Clarification on identification of RDS connections for multiple applications
(C) Support for Reliable Data Service with PtP SGi Tunneling