公开(公告)号：DE602004011347T2

公开(公告)日：2009-01-15

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

IPC: H04L12/28 ,  H04L12/56 ,  H04W28/24 ,  H04W72/12

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.

公开(公告)号：DE602004014274D1

公开(公告)日：2008-07-17

申请号：DE602004014274

申请日：2004-03-30

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BALACHANDRAN KRISHNA ,  BUDKA KENNETH C ,  DAS ARNAB ,  MEDAPALLI KAMESWARA RAO ,  PARULEKAR MINOTHI

IPC: H04L12/28 ,  H04L12/56 ,  H04W28/24 ,  H04W72/12

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.

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

IPC: H04J3/16 ,  H04L12/56 ,  H04L12/28 ,  H04W28/24 ,  H04W72/12

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.

公开(公告)号：DE602004026956D1

公开(公告)日：2010-06-17

申请号：DE602004026956

申请日：2004-03-30

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BALACHANDRAN KRISHNA ,  BUDKA KENNETH C ,  DAS ARNAB ,  MEDAPALLI KAMESWARA RAO ,  PARULEKAR MINOTHI

IPC: H04L12/28 ,  H04W72/12 ,  H04L12/56 ,  H04W28/22 ,  H04W28/24

公开(公告)号：DE602004001083D1

公开(公告)日：2006-07-20

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

IPC: H04J3/16 ,  H04L12/56 ,  H04L12/28 ,  H04W28/24 ,  H04W72/12

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.

公开(公告)号：DE60101531D1

公开(公告)日：2004-01-29

申请号：DE60101531

申请日：2001-04-02

Applicant: LUCENT TECHNOLOGIES INC

Inventor： ABRAHAM SANTOSH P ,  CHUAH MOOI CHOO ,  MEDAPALLI KAMESWARA RAO ,  SAMPATH ASHWIN

IPC: H04B7/26 ,  H04L12/28 ,  H04L12/56 ,  H04L29/06 ,  H04L29/08 ,  H04W28/18 ,  H04W28/24 ,  H04W84/04 ,  H04W92/12 ,  H04W99/00

公开(公告)号：DE60001470D1

公开(公告)日：2003-04-03

申请号：DE60001470

申请日：2000-04-18

Applicant: LUCENT TECHNOLOGIES INC

Inventor： KHAN FAROOQ ULLAH ,  KNISELY DOUGLAS N ,  KUMAR SARATH ,  MEDAPALLI KAMESWARA RAO ,  NANDA SANJIV

IPC: H04L1/12 ,  H04L1/16 ,  H04L1/18 ,  H04L29/08

Abstract: A variable length sequence number is used to identify data units in a communication channel. The sequence number associated with the most recent data that has been received successfully and the sequence number expected with the next new data message to be received are examined to determine the minimum size sequence number necessary to unambiguously identify to the transmitter incorrectly received data that must be retransmitted in a later message. The receiver provides the transmitter with the sequence number associated with the last successfully received byte of data and the sequence number associated with the next expected byte of data. The receiver communicates this information to the transmitter using a NAK control message. The transmitter then uses the sequence number of the next byte of data to be transmitted and the information received in the control message from the receiver to determine the smallest number of bits necessary to represent the sequence numbers for both data transmissions and the retransmission of data that was not received properly by the receiver.