公开(公告)号：JP2002026993A

公开(公告)日：2002-01-25

申请号：JP2001146869

申请日：2001-05-16

Applicant: LUCENT TECHNOLOGIES INC

Inventor： KRIARAS IOANNIS ,  PALAT SUDEEP KUMAR ,  YAMINI HATEF ,  YANG JIN

IPC: H04L12/66 ,  H04L12/56 ,  H04L29/06 ,  H04L29/08 ,  H04M7/00 ,  H04W48/00 ,  H04W80/04 ,  H04Q7/22 ,  H04Q7/24 ,  H04Q7/26 ,  H04Q7/30 ,  H04Q7/38

Abstract: PROBLEM TO BE SOLVED: To provide an enhanced real time data transmission system and its method. SOLUTION: The real time data transmission method used in a network consisting of a mobile station 22, a wireless network controller 24, a destination station 26, and call control systems 38, 39 and of real time media gateways 28, 32 that attains access to an Internet backbone section 30 in addition to gateways specific to a general packet radio system(GPRS), includes processing where a header of a real time data stream is changed when the real time data stream passes through the network so that the real time data stream is directly sent to the real time gateway without passing through a gateway specific to the GPRS.

公开(公告)号：DE60034319T2

公开(公告)日：2007-12-20

申请号：DE60034319

申请日：2000-05-19

Applicant: LUCENT TECHNOLOGIES INC

Inventor： KRIARAS IOANNIS ,  PALAT SUDEEP KUMAR ,  YAMINI HATEF ,  YANG JIN

IPC: H04L12/66 ,  H04L12/56 ,  H04L29/06 ,  H04L29/08 ,  H04M7/00 ,  H04W48/00 ,  H04W80/04

Abstract: A real time data transmission method is used in a network in which a real time media gateway is provided to allow access to the internet backbone in addition to the usual GPRS specific gateway. The method involves changing the header in a real time data stream as it passes through the network so that it can pass directly to the real time gateway without passing through the GPRS specific gateway. This ensures that the data stream travels along a more direct route and shortens the headers used in the data stream in the process.

公开(公告)号：DE69932365T2

公开(公告)日：2007-08-02

申请号：DE69932365

申请日：1999-05-25

Applicant: LUCENT TECHNOLOGIES INC

Inventor： YANG JIN

IPC: H04L12/56 ,  H04L29/06

公开(公告)号：DE60030404T2

公开(公告)日：2007-02-22

申请号：DE60030404

申请日：2000-02-22

Applicant: LUCENT TECHNOLOGIES INC

Inventor： PALAT SUDEEP KUMAR ,  YANG JIN ,  YAMINI HATEF

IPC: H04W36/10 ,  H04W36/12 ,  H04W76/04 ,  H04W88/14

Abstract: A mobile telephone system providing general packet radio service (GPRS) includes a radio network controller (RNC) (2A) and/or a base station controller (BSC) and an associated serving GPRS support node (10A) for each domain. The RNCs (2A) and the SGSNs (10A) are interconnected by an Internet protocol (IP) network. When a mobile telephone (6A) moves from one domain to another, the RNC, in the new domain, takes over handling the mobile telephone. The current SGSN (10A) has a detector (20) which detects whether the existing transmission is a real-time transmission and, if it is, a diverter (22) comes into operation to couple the RNC in the new domain to the current SGSN (10A) rather than its associated SGSN (10A). When the call ends, the current SGSN (10A) handsover the call to the SGSN (10A) in the new domain. This procedure ensures minimal interruption to real-time services by keeping the call anchored to the current SGSN (10A).

公开(公告)号：AU754522B2

公开(公告)日：2002-11-21

申请号：AU4385101

申请日：2001-05-11

Applicant: LUCENT TECHNOLOGIES INC

Inventor： KRIARAS IOANNIS ,  PALAT SUDEEP KUMAR ,  YAMINI HATEF ,  YANG JIN

IPC: H04L12/66 ,  H04L12/56 ,  H04L29/06 ,  H04L29/08 ,  H04M7/00 ,  H04W48/00 ,  H04W80/04 ,  H04Q7/32

Abstract: A real time data transmission method is used in a network in which a real time media gateway is provided to allow access to the internet backbone in addition to the usual GPRS specific gateway. The method involves changing the header in a real time data stream as it passes through the network so that it can pass directly to the real time gateway without passing through the GPRS specific gateway. This ensures that the data stream travels along a more direct route and shortens the headers used in the data stream in the process.

公开(公告)号：CA2342841A1

公开(公告)日：2001-11-19

申请号：CA2342841

申请日：2001-03-28

Applicant: LUCENT TECHNOLOGIES INC

Inventor： KRIARAS IOANNIS ,  PALAT SUDEEP KUMAR ,  YANG JIN ,  YAMINI HATEF

IPC: H04L12/66 ,  H04L12/56 ,  H04L29/06 ,  H04L29/08 ,  H04M7/00 ,  H04W48/00 ,  H04W80/04 ,  H04Q7/36

Abstract: A real time data transmission method is used in a network in which a real ti me media gateway is provided to allow access to the Internet backbone in additi on to the usual GPRS specific gateway. The method involves changing the header in a real tim e data stream as it passes through the network so that it can pass directly to the real time gateway without passing through the GPRS specific gateway. This ensures that the dat a stream travels along a more direct route and shortens the headers used in the data stream in the process.

公开(公告)号：AU4129900A

公开(公告)日：2001-02-05

申请号：AU4129900

申请日：2000-04-18

Applicant: LUCENT TECHNOLOGIES INC

Inventor： CASATI ALESSIO ,  PALAT SUDEEP KUMAR ,  YAMINI HATEF ,  YANG JIN

IPC: H04L12/56 ,  H04L29/12 ,  H04M3/00 ,  H04M7/00 ,  H04W76/04 ,  H04W80/04 ,  H04W88/16 ,  H04W88/18 ,  H04W92/02 ,  H04Q7/22

Abstract: A telecommunication system including a mobile station, and means for a mobile station to receive voice-over Internet Protocol (VoIP) calls when it is roaming away from a home network, comprising: means for informing a serving GGSN of the International Mobile subscriber Identity (IMSI) of the called mobile station, and means for enabling a local VoIP control server to map a called MSISDN number to the IMSI number.

公开(公告)号：DE60030404D1

公开(公告)日：2006-10-12

申请号：DE60030404

申请日：2000-02-22

Applicant: LUCENT TECHNOLOGIES INC

Inventor： PALAT SUDEEP KUMAR ,  YANG JIN ,  YAMINI HATEF

IPC: H04W36/10 ,  H04W36/12 ,  H04W76/04 ,  H04W88/14

Abstract: A mobile telephone system providing general packet radio service (GPRS) includes a radio network controller (RNC) (2A) and/or a base station controller (BSC) and an associated serving GPRS support node (10A) for each domain. The RNCs (2A) and the SGSNs (10A) are interconnected by an Internet protocol (IP) network. When a mobile telephone (6A) moves from one domain to another, the RNC, in the new domain, takes over handling the mobile telephone. The current SGSN (10A) has a detector (20) which detects whether the existing transmission is a real-time transmission and, if it is, a diverter (22) comes into operation to couple the RNC in the new domain to the current SGSN (10A) rather than its associated SGSN (10A). When the call ends, the current SGSN (10A) handsover the call to the SGSN (10A) in the new domain. This procedure ensures minimal interruption to real-time services by keeping the call anchored to the current SGSN (10A).

公开(公告)号：DE69927243D1

公开(公告)日：2005-10-20

申请号：DE69927243

申请日：1999-05-25

Applicant: LUCENT TECHNOLOGIES INC

Inventor： YANG JIN

IPC: G06F13/00 ,  G10L19/00 ,  H04L12/56 ,  H04L12/66 ,  H04L29/06 ,  H04M7/00 ,  H04W28/04 ,  H04W28/06

Abstract: A method is provided of compressing and decompressing headers for a packet switching network comprises removing combined RTP/UDP/IP headers and placing data in RLC/MAC payload; and decompressing received packets by use of an internal clock to obtain a timestamp value, and increasing the sequence number by 1 for consecutive packets.

公开(公告)号：AU4385101A

公开(公告)日：2001-11-22

申请号：AU4385101

申请日：2001-05-11

Applicant: LUCENT TECHNOLOGIES INC

Inventor： KRIARAS IOANNIS ,  YANG JIN ,  YAMINI HATEF ,  PALAT SUDEEP KUMAR

IPC: H04L12/66 ,  H04L12/56 ,  H04L29/06 ,  H04L29/08 ,  H04M7/00 ,  H04W48/00 ,  H04W80/04 ,  H04Q7/32

Abstract: A real time data transmission method is used in a network in which a real time media gateway is provided to allow access to the internet backbone in addition to the usual GPRS specific gateway. The method involves changing the header in a real time data stream as it passes through the network so that it can pass directly to the real time gateway without passing through the GPRS specific gateway. This ensures that the data stream travels along a more direct route and shortens the headers used in the data stream in the process.