System and method of unacknowledged network layer service...

Details System and method of unacknowledged network layer service... System and method of unacknowledged network layer service...

2003-11-18

2008-11-04

Smithers, Matthew B (Department: 2137)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Packet header designating cryptographically protected data

C370S328000, C370S349000

Reexamination Certificate

active

07447905

ABSTRACT:
A system and method of unacknowledged Network Layer Service Access Point Identifier (NSAPI) recovery in Sub-Network Dependent Convergence Protocol (SNDCP) communication are disclosed herein. The disclosed techniques prevent the loss of data which may result from changing between GPRS/GSM modes in a Class B mobile station (MS).

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European Patent Office, Examination Report for corresponding European Application No. 07100490.7, Aug. 21, 2008.

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