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    METHOD FOR PROVIDING SERVICE QUALITY FOR TRAFFIC SENSITIVE TO DELAY TRANSMITTED ON INTERNET NETWORK
    1.
    发明专利
    METHOD FOR PROVIDING SERVICE QUALITY FOR TRAFFIC SENSITIVE TO DELAY TRANSMITTED ON INTERNET NETWORK 失效

    公开(公告)号：JP2000196664A

    公开(公告)日：2000-07-14

    申请号：JP26801899

    申请日：1999-09-22

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： DOSHI BHARAT TARACHAND ,  HERNANDEZ-VALENCIA ENRIQUE ,  SRIRAM KOTIKALAPUDI ,  WANG YUNG-TERNG ,  YUE ON-CHING

    IPC: H04L12/46 ,  H04L12/56 ,  H04L29/06 ,  H04M7/00 ,  H04Q3/00

    Abstract: PROBLEM TO BE SOLVED: To insure service quality for IP network transmission traffic. SOLUTION: An IP network path used for IP packet transmission between a transmission side edge device and a destination edge device is identified, and bandwidth is virtually supplied to voice traffic. It is secured to meet voice delay requirement of a high priority by allowing a connection request for a new voice call based on residual free capacity after giving a priority to a voice packet. Also, a VP server 230 maintains data about bandwidth capacity of each path segment in an IP network 205, the data of the bandwidth is supplied to a signaling gateway 250, it is allowed or rejected based on the quantity of empty bandwidth, and the decision of permission or rejection is notified to the transmission side edge device. Thus, guarantee about allowable delay and jitters can be attained without having to directly send a signal to respective IP routers constituting the IP network path.

    METHOD FOR RECOVERING BORDER OF PACKET
    2.
    发明专利
    METHOD FOR RECOVERING BORDER OF PACKET 失效

    公开(公告)号：JPH11298534A

    公开(公告)日：1999-10-29

    申请号：JP6596999

    申请日：1999-03-12

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： DOSHI BHARAT TARACHAND ,  DRAVIDA SUBRAHMANYAM ,  HERNANDEZ-VALENCIA ENRIQUE ,  MATRAGI WASSIM A ,  QURESHI MUHAMMED AKBER

    IPC: H04L7/04 ,  H04L7/08 ,  H04L12/56 ,  H04L29/06 ,  H04L29/08 ,  H04Q11/04

    Abstract: PROBLEM TO BE SOLVED: To realize a simple point-to-point data link protocol(SDL) based on the use of a length indicator field and an error check field not on the use of a flag to recover a packet border in a receiver. SOLUTION: An SDL transmitter 105 sends an SDL packet consisting of a header and a PDU (payload) of a variable length. The header consists of a length indicator (L1) field, a type field and a cyclic redundancy check CRC field. A receiver 150 blocks a packet as a function of the LI field to conduct self-synchronization as functions of the LI field and the header CRC field, that is, recovers the packet. In the recovering the packet especially, the receiver 150 applies CRC check to each reception SDL packet header and declares synchronization after the check by N times (e.g. N=4) is correct.

    METHOD FOR ROUTING TRAFFIC IN NETWORK
    4.
    发明专利
    METHOD FOR ROUTING TRAFFIC IN NETWORK 失效

    公开(公告)号：JP2002044148A

    公开(公告)日：2002-02-08

    申请号：JP2001161908

    申请日：2001-05-30

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： NAGARAJAN RAMESH ,  DOSHI BHARAT TARACHAND

    IPC: H04L12/56 ,  H04L12/437 ,  H04Q11/00 ,  H04Q11/04

    Abstract: PROBLEM TO BE SOLVED: To provide a technology with which a fault in an optical network or other kinds of networks is protected. SOLUTION: An OC-x traffic unit or other kind of traffic unit is routed between nodes in a network on corresponding sets of trunks resulting that the traffic is balanced between different paths and a restoration process to the traffic is executed by switching of service layers or transport layers. The switching of the service layers is conducted by switching of the Internet protocols or switching of other kind of service layers or the basis of packets.

    LOGIC LINK CONNECTION SERVER
    5.
    发明专利
    LOGIC LINK CONNECTION SERVER 失效

    公开(公告)号：JPH10341242A

    公开(公告)日：1998-12-22

    申请号：JP10225498

    申请日：1998-04-14

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： BALDWIN JOHN HENRY ,  DOSHI BHARAT TARACHAND ,  DRAVIDA SUBRAHMANYAM ,  JIANG HONG ,  MATRAGI WASSIM A ,  NANDA SANJIV

    IPC: H04Q3/00 ,  H04L12/56 ,  H04Q7/38 ,  H04Q11/04 ,  H04L12/28

    Abstract: PROBLEM TO BE SOLVED: To switch an ATM connection of an ATM adaptive layer AAL-2 packet to other ATM connection in a sub ATM cell level such as logic link connection(LLC) by bundling again the ATM adaptive layer AAL-2 packet in the case that a plurality of sources and a destination are included in connection among a plurality of termination nodes. SOLUTION: An LLC server 200 bundles again two LLC packets according to two transfer tables each denoting each direction of communication and the packets are divided into two, which arrives at an adaptor TAB205 and outputs from an adaptor TAS215. Each column of the transfer tables maps a specific virtual channel connector(VCC) and a CID through a specific port to a channel IDCID in VCC, then the LLC server 200 bundles again a payload of the LLC packet arrived in the TAS205 into a new LLC packet with a new CID and gives the new LLC packet to a proper port on a designated VCC to switch the packets.

    CALL TRANSFER METHOD
    6.
    发明专利
    CALL TRANSFER METHOD 失效

    公开(公告)号：JPH10210160A

    公开(公告)日：1998-08-07

    申请号：JP35159597

    申请日：1997-12-19

    Applicant: LUCENT TECHNOLOGIES INC ,  AT & T CORP

    Inventor： DOSHI BHARAT TARACHAND ,  FARBER N ,  GIUFFRIDA THOMAS S ,  HARSHAVARDHANA P ,  JAIRAM MAHALAKSHMI ,  JOHRI PRAVIN KUMAR ,  KASHPER ARIK ,  KATZ STEVEN S

    IPC: H04M3/54 ,  H04M3/00 ,  H04M7/00 ,  H04Q3/00 ,  H04Q3/545

    Abstract: PROBLEM TO BE SOLVED: To inexpensively add an exchange, while maintaining high persistence in a communication network. SOLUTION: An exchange group consists of plural exchanges in a communication network comprising plural exchanges. The exchanges are interconnected in the exchange group. A connection control (CC) processor is connected to each exchange. The CC processors are mutually connected with one another to switch signaling information. Each exchange group has an inherent address to associate a called telephone number with a specific exchange group 700 which becomes a destination point of a call. When a call is received from a calling station, the call is transferred to a prescribed exchange 705 in the group 700 which becomes a destination point, and also signaling information is sent to a CC processor 725-1 so that the processor 725-1 which corresponds to the exchange 705 can decide a path which transfers the call to a called station in the group 700.

    CELLULAR COMMUNICATION SERVICE METHOD AND SYSTEM
    7.
    发明专利
    CELLULAR COMMUNICATION SERVICE METHOD AND SYSTEM 失效

    公开(公告)号：JPH1070753A

    公开(公告)日：1998-03-10

    申请号：JP8924597

    申请日：1997-04-08

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： DOSHI BHARAT TARACHAND ,  DRAVIDA SUBRAHMANYAM ,  EJZAK RICHARD PAUL ,  NANDA SANJIV ,  SAWKAR ANIL S ,  TREVENTI PHILIP ANDREW

    IPC: H04W84/02 ,  H04J3/00 ,  H04M3/00 ,  H04Q3/00 ,  H04Q11/04 ,  H04W88/18 ,  H04Q7/22 ,  H04L12/28 ,  H04Q7/24 ,  H04Q7/26 ,  H04Q7/30

    Abstract: PROBLEM TO BE SOLVED: To provide system introduction with flexibility by raising and expanding an architecture stepwise while reutilizing many of existing voice communication infra as they are at the time replacing a cellular communication system based on channels/packets with a system capable of handling data. SOLUTION: The introduction is desirably performed through four stages. In a first stage, a conventional cellular exchanging device 10 is connected to a radio base station 12 and a public exchange telephone network and achieves a standard digital exchange function and a voice call control processor 28 performs call control and charge management. Also, a data digital cellular (data DC) exchanging device 46 is connected to the public exchange telephone network and a public exchange packet data network and achieves an ATM exchange function and a data call control processor 48 performs the call control and the charge management. The exchanging devices 10 and 46 are connected by a converter 66 front a channel packet to ATM and the mutual exchange connection of a call is performed. In a second stage, the processors 28 and 48 are integrated. In a third stage, the respective radio base stations are unitarily controlled and managed under an ATM exchange basic structure 50.

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