公开(公告)号：BR0101647A

公开(公告)日：2001-12-26

申请号：BR0101647

申请日：2001-04-30

Applicant: LUCENT TECHNOLOGIES INC

Inventor： CHEN XIAOBAO X

IPC: H04L12/54 ,  H04L47/724 ,  H04L47/765 ,  H04L47/80 ,  H04W28/26 ,  H04W72/04 ,  H04W84/04 ,  H04W88/16 ,  H04W92/18 ,  H04W92/24 ,  H04Q7/38

Abstract: In the UMTS, resource reservation is provided by using unidirectional RSVP messages to set up a bi-directional PDP context. The MT 30 and a support node 24 can be arranged to compare incoming RSVP messages with any existing secondary PDP context, and if a match is found, no action is taken on the incoming message. The match is made by determining whether a flag is set. This eliminates "racing" when each end of an RSVP session sends an RSVP message.

公开(公告)号：GB2361843A

公开(公告)日：2001-10-31

申请号：GB0020579

申请日：2000-08-21

Applicant: LUCENT TECHNOLOGIES INC

Inventor： CHEN XIAOBAO X

IPC: H04L12/801 ,  H04W92/12 ,  H04Q7/20

Abstract: The invention relates to mobile telecommunications networks such as GSM and especially to EDGE (Enhanced Data rates for GSM Evolution). A mobile communications system comprises at least one Base Station Controller (BSC) or Radio Network Controller (RNC), capable of supporting a plurality of Base Transceiver Stations (BTS) or Node Bs each capable of supporting a plurality of mobile users. The BSC/RNC and BTS/Node B communicate across a circuit switched interface (Abis), characterised by means to provide an Internet Protocol (IP) tunnel between a BSC/RNC and a BTS/Node B which it supports.

公开(公告)号：CA2344760A1

公开(公告)日：2001-10-25

申请号：CA2344760

申请日：2001-04-20

Applicant: LUCENT TECHNOLOGIES INC

Inventor： CHEN XIAOBAO X

IPC: H04L12/56 ,  H04W76/04 ,  H04W92/02 ,  H04W92/12 ,  H04L29/06 ,  H04Q7/36

Abstract: In an EDGE system, an IP tunnel is provided between a BSC (16) and each B TS (18) which it supports; packets can then be tunneled across the circuit- switched Abis interface between the BSC and the BTS.