公开(公告)号：JP2003124915A

公开(公告)日：2003-04-25

申请号：JP2002253367

申请日：2002-08-30

Applicant: LUCENT TECHNOLOGIES INC

Inventor： RUDRAPATNA ASHOK N ,  SHARMA NARESH

IPC: H04L1/16 ,  H04B7/26 ,  H04L1/06 ,  H04L1/18

Abstract: PROBLEM TO BE SOLVED: To provide a method for retransmitting a plurality of error-coding streams that are formed by one information block when an error is detected. SOLUTION: In this method, a plurality of error-coding streams are formed by one information block in a first process. At least, two error-coding streams are transmitted according to a confirmation message after that. In a second process, independent error detection is executed to at least two received error- coding streams. At least, one confirmation message is transmitted to at least one of the received error-coding streams according to the result of independent, executed error detection.

公开(公告)号：JP2004007548A

公开(公告)日：2004-01-08

申请号：JP2003100743

申请日：2003-04-03

Applicant: LUCENT TECHNOLOGIES INC

Inventor： KOGIANTIS ACHILLES GEORGE ,  RUDRAPATNA ASHOK N ,  SHARMA NARESH

IPC: H04L1/00 ,  H04L29/08

Abstract: PROBLEM TO BE SOLVED: To assign a data rate to a plurality of streams of information transmitted from a plurality of transmission apparatuses through a communication channel of a communication system. SOLUTION: This invention provides an assignment method of a data rate wherein a channel characteristic received by each stream is decided by using a correction incorporation limit and respective data rates are selected from a set (MCS) of modulation and encoding processed by a communication channel. That is, the method includes a step of applying a signal-to-noise-ratio (SNR) to a code word error probability versus SNR curve to select a particular component of the modulation and encoding set having a particular data rate, a code word error probability, and a data rate to be assigned to a stream. The SNR is obtained by applying an upper limit with respect to the error probability of the stream to a symbol error provability versus SNR curve on the basis of an entire average of symbol groups used for the stream. COPYRIGHT: (C)2004,JPO

公开(公告)号：JP2003198382A

公开(公告)日：2003-07-11

申请号：JP2002314014

申请日：2002-10-29

Applicant: LUCENT TECHNOLOGIES INC

Inventor： RUDRAPATNA ASHOK N ,  SHARMA NARESH

IPC: H03M9/00 ,  H04B1/18 ,  H04L1/00 ,  H04L1/06

Abstract: PROBLEM TO BE SOLVED: To provide a coding/decoding system for increasing a data transmission rate (throughput) by using a plurality of antennas. SOLUTION: The coding/decoding system comprises a supply apparatus for receiving data and for generating N data streams (A), N encoders for receiving each data stream in N data streams and for generating coded data streams (B), and a multi-input/multi-output MIMO encoder for coding N data streams into M data streams for transmitting from the N antennas (C). COPYRIGHT: (C)2003,JPO

公开(公告)号：DE60300255D1

公开(公告)日：2005-02-10

申请号：DE60300255

申请日：2003-03-19

Applicant: LUCENT TECHNOLOGIES INC

Inventor： KOGIANTIS ACHILLES GEORGE ,  RUDRAPATNA ASHOK N ,  SHARMA NARESH

IPC: H04L1/00 ,  H04L29/08

Abstract: A method for allocating data rate to a stream of information to be transmitted over a communication channel of a communication system is provided. Modified union bounds are used to determine the channel characteristic experienced by each of the streams to select their respective data rates from an MCS that can be handled by the communication channel of the communication system. A method for allocating data rate to a stream of information to be transmitted over a communication channel of a communication system is provided. Modified union bounds are used to determine the channel characteristic experienced by each of the streams to select their respective data rates from an MCS that can be handled by the communication channel of the communication system.

公开(公告)号：DE602005004751T2

公开(公告)日：2009-02-12

申请号：DE602005004751

申请日：2005-12-15

Applicant: LUCENT TECHNOLOGIES INC

Inventor： OZAROW LAWRENCE HOWARD ,  RUDRAPATNA ASHOK N ,  SHARMA NARESH

IPC: H04B7/005 ,  H04W52/08

Abstract: The present invention provides a method for reducing transmitted energy based on early decoding. The method includes accessing a first portion of a block including a plurality of symbols indicative of an encoded message. The first portion has been transmitted at a first transmission power and having less than all of the plurality of symbols. The method also includes attempting to decode the encoded message using the first portion of the block, determining whether the encoded message was decoded, and providing an indication of a second transmission power in response to determining that the encoded message was decoded.

公开(公告)号：DE602005004751D1

公开(公告)日：2008-03-27

申请号：DE602005004751

申请日：2005-12-15

Applicant: LUCENT TECHNOLOGIES INC

Inventor： OZAROW LAWRENCE HOWARD ,  RUDRAPATNA ASHOK N ,  SHARMA NARESH

IPC: H04B7/005 ,  H04W52/08

Abstract: The present invention provides a method for reducing transmitted energy based on early decoding. The method includes accessing a first portion of a block including a plurality of symbols indicative of an encoded message. The first portion has been transmitted at a first transmission power and having less than all of the plurality of symbols. The method also includes attempting to decode the encoded message using the first portion of the block, determining whether the encoded message was decoded, and providing an indication of a second transmission power in response to determining that the encoded message was decoded.

公开(公告)号：DE60300255T2

公开(公告)日：2005-12-08

申请号：DE60300255

申请日：2003-03-19

Applicant: LUCENT TECHNOLOGIES INC

Inventor： KOGIANTIS ACHILLES GEORGE ,  RUDRAPATNA ASHOK N ,  SHARMA NARESH

IPC: H04L1/00 ,  H04L29/08

Abstract: A method for allocating data rate to a stream of information to be transmitted over a communication channel of a communication system is provided. Modified union bounds are used to determine the channel characteristic experienced by each of the streams to select their respective data rates from an MCS that can be handled by the communication channel of the communication system. A method for allocating data rate to a stream of information to be transmitted over a communication channel of a communication system is provided. Modified union bounds are used to determine the channel characteristic experienced by each of the streams to select their respective data rates from an MCS that can be handled by the communication channel of the communication system.