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公开(公告)号：JP2001285917A
公开(公告)日：2001-10-12
申请号：JP2001046189
申请日：2001-02-22
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BALDWIN JOHN HENRY , MONIN JEFFREY , PARK SE-YONG , SRIRAM KOTIKALAPUDI
IPC: H04J13/00 , H04B7/26 , H04L12/28 , H04L12/70 , H04Q11/04 , H04W36/18 , H04W92/14 , H04Q7/22 , H04Q7/28 , H04Q7/36
Abstract: PROBLEM TO BE SOLVED: To enhance the efficiency of inter-site communication between a base station controller and a mobile exchange center in a wireless system in order to reduce the cost for a communication channel and provide a reliable service to subscribers. SOLUTION: The system and the method that enhance the inter-site traffic capability as to soft hand-off can reduce a required communication capacity on a forward path between the mobile exchange center and the base station controller. The base station controller receives an original data packet for forward path transmission to a mobile station on the forward path between the mobile exchange center and the base station controller. When the mobile station performs soft hand-off, the base station controller copies the original data packet to generate a distributed data packet. The distribution data packet is sent to a corresponding base station taking part in the soft hand-off.
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公开(公告)号：JP2001275144A
公开(公告)日：2001-10-05
申请号：JP2001045900
申请日：2001-02-22
Applicant: LUCENT TECHNOLOGIES INC
Inventor： SRIRAM KOTIKALAPUDI , MONIN JEFFREY , PARK SE-YONG , BALDWIN JOHN HENRY
IPC: H04J13/00 , H04B7/26 , H04L12/70 , H04W36/18 , H04W92/14 , H04Q7/22 , H04L12/56 , H04Q7/28 , H04Q7/36
Abstract: PROBLEM TO BE SOLVED: To provide a system and a method for enhancing reverse traffic capacity between sites for soft hand-off in order to improve the efficiency of site-to- site communication between a base station controller and a mobile switch center. SOLUTION: The system and method for soft hand-off of this invention uses a data packet to reduce the communication capacity requested between a mobile switch center and a base station controller. The base station controller decides the best frame or data packet among duplicate frames or data packets in the reverse link from a mobile station executing the soft hand-off. Thus, the base station conducting the soft hand-off transmits not all of a plurality of data packets but only the best data packet on the reverse link between the base station controller and the mobile switch center.
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公开(公告)号：JP2000036825A
公开(公告)日：2000-02-02
申请号：JP10733499
申请日：1999-04-15
Applicant: LUCENT TECHNOLOGIES INC
Inventor： EDMON EUGENE L , LI CHIA-CHANG , SRIRAM KOTIKALAPUDI
Abstract: PROBLEM TO BE SOLVED: To use channels efficiently and economically by reserving plural times slots so as to be used consecutively by a specific station in response to a reservation instruction included in plural messages inserted by the specific station. SOLUTION: A band width controller 335 of a MAC processor 330 of a station is arranged to mount a protocol with respect to transmission of information to interconnect tree and branch networks. As long as a time slot is not a reserved slot, the station can insert information to a specific time slot of an upstream channel. The station trying transmission by using one time slot reads status information relating to the slot. When the slot is not reserved, the station can insert the information to the slot.
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4.发明专利
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
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.
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公开(公告)号：JPH11225150A
公开(公告)日：1999-08-17
申请号：JP31527098
申请日：1998-11-06
Applicant: LUCENT TECHNOLOGIES INC
Inventor： SRIRAM KOTIKALAPUDI , WANG YUNG-TERNG
Abstract: PROBLEM TO BE SOLVED: To obtain a control system presenting effective band width management by acknowledging an incoming call when a band width accompanying the incoming call is not larger than a spare band width accompanying a virtual circuit, providing the stream of an ATM cell in response to this call and providing each stream of ATM cells in response to this stream. SOLUTION: A PBX 105 transmits and receives plural voice band cAlls to the call controller 110 of a cAll processor 125 through an equipment 106. The processor 125 is provided with the controller 110, an AAL2/SSCS processor 130 and an ATM processor 135. The controller 110 sorts voice band cells by each call. When the controller 110 detects a voice call, the voice is encoded correspondingly to G.727. The controller 110 compresses a 64 kb/s bit stream from PBX 105 to a 32 kb/s compressed audio stream by using an ADPCM.
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Patent Agency Ranking
公开(公告)号：DE69835130T2
公开(公告)日：2006-12-07
申请号：DE69835130
申请日：1998-10-27
Applicant: LUCENT TECHNOLOGIES INC
Inventor： SRIRAM KOTIKALAPUDI , WANG YUNG-TERNG
Abstract: An AAL2/SSCS packet voice system multiplexes various forms of voice-band traffic including voice packets, fax packets, and data packets into a virtual circuit (VC). This AAL2/SSCS packet voice system executes a dynamic call admission algorithm that takes into account call type in deciding whether to admit a new call to the VC. In particular, this approach takes into account different bandwidth needs for different call types. The AAL2/SSCS packet voice system also performs bit or block dropping on voice packets to mitigate the effects of traffic congestion. The bit or block dropping is done based on the packet queue fill value exceeding at least one queue threshold. Further, the AAL2/SSCS packet voice system also dynamically varies a queue threshold as a function of capacity.
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公开(公告)号：BR0100515A
公开(公告)日：2001-10-09
申请号：BR0100515
申请日：2001-02-12
Applicant: LUCENT TECHNOLOGIES INC
Inventor： SRIRAM KOTIKALAPUDI , MONIN JEFFREY , PARK SE-YONG , BALDWIN JOHN HENRY
Abstract: A system and method for enhancing inter-site traffic capacity for a soft hand-off reduces the requisite communications capacity on a forward path between the mobile switching center and the base station controller. A base station controller receives an original data packet for a forward path transmission to a mobile station over the forward path between the mobile switching center and the base station controller. The base station controller copies the original data packets to generate distributional data packets if the mobile station is in a soft hand-off. The distributional data packets are sent to corresponding base stations participating in the soft hand-off.
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公开(公告)号：CA2248485A1
公开(公告)日：1999-05-06
申请号：CA2248485
申请日：1998-09-30
Applicant: LUCENT TECHNOLOGIES INC
Inventor： WANG YUNG-TERNG , SRIRAM KOTIKALAPUDI
Abstract: An AAL2/SSCS packet voice system multiplexes various forms of voice-band traffic including voice packets, fax packets, and data packets into a virtual ci rcuit (VC). This AAL2/SSCS packet voice system executes a dynamic call admission algorithm t hat takes into account call type in deciding whether to admit a new call to the VC. In particular, this approach takes into account different bandwidth needs for diffe rent call types. The AAL2/SSCS packet voice system also performs bit or block dropping on voice packets to mitigate the effects of traffic congestion. The bit or block dropping is done based on the packet queue fill value exceeding at least one queue threshold. Fur ther, the AAL2/SSCS packet voice system also dynamically varies a queue threshold as a fun ction of capacity.
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公开(公告)号：DE69916747D1
公开(公告)日：2004-06-03
申请号：DE69916747
申请日：1999-09-14
Applicant: LUCENT TECHNOLOGIES INC
Inventor： DOSHI BHARAT TARACHAND , HERNANDEZ-VALENCIA ENRIQUE , SRIRAM KOTIKALAPUDI , WANG YUNG-TERNG , YUE ON-CHING
Abstract: A quality of service guarantee for voice and other delay sensitive transmissions within an Internet Protocol (IP) network is provided by identifying the IP network path utilized for IP packet transmission between source and destination edge devices and virtually provisioning IP network path bandwidth for priority voice traffic. Priority for voice packets and admission control of new voice calls (and other delay sensitive traffic) based on the remaining available capacity over the IP network path guarantees that high priority voice (and other delay sensitive traffic) meet stringent delay requirements. A Virtual Provisioning Server is utilized to maintain bandwidth capacity data for each path segment within the IP network and to forward the bandwidth capacity data to a Signaling Gateway. The Signaling Gateway determines whether to accept or reject an additional delay sensitive traffic component based upon available bandwidth capacity for an IP network path. The Signaling Gateway then signals the originating source edge device as to its determination to accept or reject. Quality of Service guarantees concerning acceptable delay and jitter characteristics for real-time transmission over an IP network are therefore provided without the need to directly signal the individual IP routers over which an IP network path is established.
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公开(公告)号：DE69835130D1
公开(公告)日：2006-08-17
申请号：DE69835130
申请日：1998-10-27
Applicant: LUCENT TECHNOLOGIES INC
Inventor： SRIRAM KOTIKALAPUDI , WANG YUNG-TERNG
Abstract: An AAL2/SSCS packet voice system multiplexes various forms of voice-band traffic including voice packets, fax packets, and data packets into a virtual circuit (VC). This AAL2/SSCS packet voice system executes a dynamic call admission algorithm that takes into account call type in deciding whether to admit a new call to the VC. In particular, this approach takes into account different bandwidth needs for different call types. The AAL2/SSCS packet voice system also performs bit or block dropping on voice packets to mitigate the effects of traffic congestion. The bit or block dropping is done based on the packet queue fill value exceeding at least one queue threshold. Further, the AAL2/SSCS packet voice system also dynamically varies a queue threshold as a function of capacity.
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