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公开(公告)号：DE602004001083T2
公开(公告)日：2007-06-06
申请号：DE602004001083
申请日：2004-03-30
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BALACHANDRAN KRISHNA , BUDKA KENNETH C , DAS ARNAB , MEDAPALLI KAMESWARA RAO , PARULEKAR MINOTHI
Abstract: A method for scheduling transmissions to a plurality of users in a communication network determines a satisfaction metric and a dissatisfaction metric for each user in a given timeslot that is to be used for a next scheduled transmission to one of the users. Each user is assigned a weight based on a value of at least one of the user's satisfaction metric, the user's dissatisfaction metric and a rate requested by the user. The use having the highest weight is selected to be served the next scheduled transmission in the given timeslot.
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公开(公告)号：ES2249921T3
公开(公告)日：2006-04-01
申请号：ES99957511
申请日：1999-11-03
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BALACHANDRAN KRISHNA , EJZAK RICHARD P , NANDA SANJIV
Abstract: Un sistema de comunicaciones inalámbricas, capaz de admitir la adaptación de enlaces y la redundancia incremental, que comprende un transmisor (40, 46) que segmenta bloques (102) de control de enlaces lógicos (LLC) en bloques (104) de control de enlaces por radio de longitud fija (RLC); en el que el transmisor (40, 46) añade una secuencia (106) de comprobación de redundancia cíclica a los bloques RLC (104) de longitud fija para obtener bloques RLC (108) con codificación de errores; en el que el transmisor (40, 46) procesa los bloques RLC (108) con codificación de errores para obtener sub- bloques codificados (116, 120); en el que el transmisor (40, 46) configura los sub-bloques codificados (116, 120) en unidades (Pik) de transmisión capaces de admitir la adaptación de enlaces a múltiples velocidades de código; en el que el transmisor (40, 46) forma una cabecera (302) indicativa de las unidades (Pik) de transmisión que han de ser transmitidas; donde el transmisor (40, 46) transmite las unidades (Pik) de transmisión con la cabecera (302).
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公开(公告)号：DE69905649D1
公开(公告)日：2003-04-10
申请号：DE69905649
申请日：1999-05-12
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BALACHANDRAN KRISHNA , EJZAK RICHARD PAUL , NANDA SANJIV , SETH SHIV MOHAN , VITEBSKIY STANISLAV , WAUNG WILLIAM
Abstract: A system and method of implementing a radio link protocol completion oriented packet data communication system. A data backlog is described with a media access control layer controller and transmitting a BEGIN protocol data unit containing a flag transmitted to a receiver. A media access control layer transaction is initiated in response to the transmitting of the BEGIN protocol data unit.
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公开(公告)号：CA2378808A1
公开(公告)日：2002-11-07
申请号：CA2378808
申请日：2002-03-25
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BALACHANDRAN KRISHNA , KANG JOSEPH H , SANWAL KUMUD K , SEYMOUR JAMES PAUL
IPC: H04B1/7143 , H04B1/715 , H04Q7/36 , H04B1/713
Abstract: A wireless endpoint employs frequency hopping for communicating signals in a wireless communications system. Over a time period T, the wireless endpoint performs pseudo-random selection of a frequency from a hopping set of N frequencies such that over at least a portion of the time period T, the frequency selection is constrained to less than the N frequencies.
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公开(公告)号：AU2121799A
公开(公告)日：1999-09-30
申请号：AU2121799
申请日：1999-03-16
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BALACHANDRAN KRISHNA , NANDA SANJIV , KADABA SRINIVAS R , EJZAK RICHARD PAUL
IPC: H04B17/00 , H03M13/23 , H04B1/10 , H04B7/26 , H04L1/00 , H04L1/12 , H04L1/20 , H04L27/00 , H04L27/18 , H04L27/34 , H04W36/30 , H04W72/08 , H04Q7/34
Abstract: A system and method to measure channel quality in terms of signal to interference plus noise ratio for the transmission of coded signals over fading channels in a communication system. A Viterbi decoder metric for the Maximum Likelihood path is used as a channel quality measure for coherent and non-coherent transmission schemes. This Euclidean distance metric is filtered in order to smooth out short term variations. The filtered or averaged metric is a reliable channel quality measure which remains consistent across different coded modulation schemes speeds. The filtered metric is mapped to the signal to interference plus noise ratio per symbol using a threshold based scheme. Use of this implicit signal to interference plus noise ratio estimate is used for the mobile assisted hand off in a cellular system, power control and data rate adaptation in the transmitter.
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Patent Agency Ranking
公开(公告)号：DE602004016928D1
公开(公告)日：2008-11-20
申请号：DE602004016928
申请日：2004-08-23
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BALACHANDRAN KRISHNA , BUDKA KENNETH C , DAS ARNAB , KANG JOSEPH H
Abstract: Methods for signaling information to a group of users in a communication network supporting a broadcast-multicast service are described, in which one or more indicator bits of a sequence may be assigned to indicate transmission of signaling information that is related to the group. The sequence may be transmitted to the group on a first channel, with the signaling information related to the group being transmitted on a second channel.
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公开(公告)号：DE602004008181T2
公开(公告)日：2008-05-08
申请号：DE602004008181
申请日：2004-09-29
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BALACHANDRAN KRISHNA , BUDKA KENNETH C , DAS ARNAB , KANG JOSEPH H
Abstract: A method of triggering registration of a mobile station in a network supporting broadcast multicast services employs registration triggers based on flow conditions and frequency conditions. For example, a registration message may be generated based on a change in frequency, from a first frequency to a second frequency, that is monitored by the mobile station. If the second frequency is not known to the network based on flow identifier information previously registered by the mobile station with the network, a registration to the network is triggered. By sending a registration, the network may page a mobile station on a single, given frequency, since the registration message indicates the mobile station's presence on that given frequency.
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公开(公告)号：DE602004011347D1
公开(公告)日：2008-03-06
申请号：DE602004011347
申请日：2004-03-30
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BALACHANDRAN KRISHNA , BUDKA KENNETH C , DAS ARNAB , MEDAPALLI KAMESWARA RAO , PARULEKAR MINOTHI
Abstract: A scheduler and a method for scheduling transmissions to a plurality of users (105) in a communication network assigns a higher target minimum throughput for receiving a next transmission to a user based on a quality of service (QoS) class of the user. A token count that tracks the user's achieved performance relative to a target minimum throughput Is determined for each user in given timeslot, and a weight is determined for each user based on one or more of the token count and a current rate requested by the user. A user having the highest weight as determined by a weight function is scheduled to be served the next transmission. User priority for scheduling may be downgraded if an average data rate requested by the user is less than the target minimum throughput.
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公开(公告)号：DE69926906D1
公开(公告)日：2005-09-29
申请号：DE69926906
申请日：1999-11-03
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BALACHANDRAN KRISHNA , EJZAK P , NANDA SANJIV
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40.发明专利
公开(公告)号：CA2271419C
公开(公告)日：2003-07-08
申请号：CA2271419
申请日：1999-05-10
Applicant: LUCENT TECHNOLOGIES INC
Inventor： NANDA SANJIV , SETH SHIV MOHAN , WAUNG WILLIAM , BALACHANDRAN KRISHNA , EJZAK RICHARD PAUL , VITEBSKIY STANISLAV
Abstract: A system and method of implementing a radio link protocol and dynamic partial echo management for a transaction oriented packet data communication system. A data backlog is described with a media access control layer controller and transmitting a BEGIN protocol data unit transmitted to a receiver. A media access control layer transaction is initiated in response to the transmitting of the BEGIN frame.
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