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1. (WO2001005175) METHOD AND APPARATUS FOR AVOIDING DATA LOSS DURING A PPP RENEGOTIATION ON A Um INTERFACE

Pub. No.:    WO/2001/005175    International Application No.:    PCT/US2000/019411
Publication Date: Fri Jan 19 00:59:59 CET 2001 International Filing Date: Sat Jul 15 01:59:59 CEST 2000
IPC: H04L 29/08
H04W 88/02
Applicants: QUALCOMM INCORPORATED
Inventors: ABROL, Nischal
LIOY, Marcello
Title: METHOD AND APPARATUS FOR AVOIDING DATA LOSS DURING A PPP RENEGOTIATION ON A Um INTERFACE
Abstract:
A method and a wireless communication device (104) capable of flow controlling data to be sent from a TE2 device (102) over a Rm interface when PPP renegotiation occurs over a Um interface. Flow control (S320) is asserted by the MT2 device (104) by means of manipulating electrical signaling of a physical interface between the MT2 device (104) and the TE2 device (102). A second embodiment provides a method and a wireless communication device (104) for buffering (S420) data on the MT2 device when the PPP renegotiation of the Um interface occurs. In a third embodiment, data is buffered when the PPP renegotiation of the Um interface occurs. When an amount of free buffer space is less than a predetermined threshold (S540), flow control is asserted (S550) to the TE2 device.