Patent · US Active

System and method of unacknowledged network layer service access point identifier (NSAPI) recovery in sub-network dependent convergence protocol (SNDCP) communication

US8379610B2 · kind B2 · utility

0Cited by

7References

20Claims

0Family size

Assignee

RESEARCH IN MOTION LIMITED · CA

Inventor

Charles Wang · Waterloo, CA

Key dates

Filing date	Sep 30, 2008
Grant date	Feb 19, 2013
Priority date	—
Expiry date	Sep 13, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH04L69/325
WIPO fieldDigital communication
WIPO sectorElectrical engineering

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).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.