公开(公告)号：EP1353483A2

公开(公告)日：2003-10-15

申请号：EP03251715.3

申请日：2003-03-19

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Khan, Farooq Ullah

IPC: H04L12/56 ,  H04L1/08

CPC classification number: H04W72/12 ,  H04L1/0002 ,  H04L1/0026 ,  H04L1/16 ,  H04L47/10 ,  H04L47/266 ,  H04W88/06

Abstract: A method of data flow control between a mobile and base station of a wireless communication system where the mobile is transferring wirelessly part or all of the data received from the base station to a local device in accordance with a standard such as Bluetooth or Wi-Fi. The rate at which the mobile is receiving data from the base station is typically much higher than the rate at which the mobile is transferring the data to the local device. The mobile sends a STOP data flow control command to the base station causing the base station to either stop transmitting data or transmit data at a lower data rate thus prevention mobile buffer overflow and loss of data from occurring. When conditions are favorable for reception of data, the mobile sends START data flow control commands to the base station allowing the base station to resume transmitting data at a higher data rate. The higher data rate may be equal to the original established data rate.

Abstract translation: 一种在无线通信系统的移动台和基站之间进行数据流控制的方法，其中移动台根据诸如蓝牙或Wi-Fi的标准无线地将从基站接收的部分或全部数据传送到本地设备 。 移动台从基站接收数据的速率通常远高于移动台将数据传送到本地设备的速率。 移动台向基站发送STOP数据流控制命令，导致基站停止发送数据或以较低数据速率发送数据，从而防止移动缓冲区溢出和数据丢失发生。 当条件有利于接收数据时，移动台向基站发送START数据流控制命令，允许基站以更高的数据速率重新发送数据。 较高的数据速率可以等于原始建立的数据速率。一种在无线通信系统的移动和基站之间的数据流控制的方法，其中移动台无线地将从基站接收的部分或全部数据传送到 本地设备按照蓝牙或Wi-Fi等标准进行。 移动台从基站接收数据的速率通常远高于移动台将数据传送到本地设备的速率。 移动台向基站发送STOP数据流控制命令，导致基站停止发送数据或以较低数据速率发送数据，从而防止移动缓冲区溢出和数据丢失发生。 当条件有利于接收数据时，移动台向基站发送START数据流控制命令，允许基站以更高的数据速率重新发送数据。 较高的数据速率可以等于原始建立的数据速率。

公开(公告)号：EP1313245A1

公开(公告)日：2003-05-21

申请号：EP02253959.7

申请日：2002-06-06

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Das, Arnab ,  Khan, Farooq Ullah ,  Sampath, Ashwin ,  Su, Hsuan-Jung

IPC: H04L1/00

CPC classification number: H04L1/0006 ,  H04L1/0045 ,  H04L1/0059 ,  H04L1/0071 ,  H04L1/0072

Abstract: A method for processing control information in a wireless communications system is described in which portions of the control information are separately encoded and decoded such that transmission format information for a corresponding data transmission can be determined with a reduced set of decoded control information. The control information is convolutionally coded using either a single set of tail bits or by judiciously dispersing the tail bits among different portions of the encoded signaling information.

Abstract translation: 一种用于在无线通信系统中处理控制信息的方法中的控制信息被分别编码这些部分的描述和解码搜索没有传输格式信息为相应的数据传输可以是确定与解码的控制信息的一组减少的开采。 所述控制信息是使用任一组尾比特的或通过的编码信令信息的不同部分之间的尾比特明智地分散卷积编码。

公开(公告)号：EP1052798B1

公开(公告)日：2003-02-26

申请号：EP00303276.0

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: H04L1/18

CPC classification number: H04L1/1825 ,  H04L1/0023 ,  H04L1/165 ,  H04L1/1671 ,  H04L1/1809

公开(公告)号：EP1052798A2

公开(公告)日：2000-11-15

申请号：EP00303276.0

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: H04L1/18

CPC classification number: H04L1/1825 ,  H04L1/0023 ,  H04L1/165 ,  H04L1/1671 ,  H04L1/1809

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.

Abstract translation: 可变长度序列号用于识别通信信道中的数据单元。 检查与已经成功接收的最新数据相关联的序列号以及预期接收到的下一个新数据消息的序列号，以确定明确识别发射机所必需的最小大小序列号，这些数据必须是 在稍后的消息中重传。 接收机向发射机提供与最后成功接收的数据字节相关联的序列号以及与下一个预期数据字节相关联的序列号。 接收机使用NAK控制消息将该信息传送给发射机。 然后，发射机使用要发送的数据的下一字节的序列号和来自接收机的控制消息中接收的信息来确定表示数据传输的序列号所需的最小比特数，并且重传数据的重传 接收器没有正确接收到。

公开(公告)号：EP1478113B1

公开(公告)日：2006-06-14

申请号：EP04252516.2

申请日：2004-04-29

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Khan, Farooq Ullah

IPC: H04J13/02 ,  H04J11/00

CPC classification number: H04J13/18 ,  H04J13/0048 ,  H04W72/08

Abstract: A method of adaptive Walsh code allocation in a wireless communication system. The method includes the step of each voice user transmitting quality condition signal, such as a pilot signal strength measurement to a corresponding base station. Upon receiving each quality condition signal, the method includes determining a spreading factor for each voice user in response to its quality condition signal. A Walsh code is thereafter allocated to each voice user in response to the determined corresponding spreading factor. Thus, for example, if the quality condition signal of a first voice user is relatively higher than the quality condition signal of a second voice user, the spreading factor allocated to the first voice user should be longer than the spreading factor of the second voice user.

公开(公告)号：EP1617570A1

公开(公告)日：2006-01-18

申请号：EP05254273.5

申请日：2005-07-07

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Khan, Farooq Ullah ,  Viswanathan, Harish

IPC: H04B7/06 ,  H04L1/00 ,  H04L1/06

CPC classification number: H04B7/0613 ,  H04L1/0009 ,  H04L1/0625 ,  H04L1/1812 ,  H04W52/42

Abstract: A wireless communications system is provided in which transmissions may be made in either a diversity mode or a non-diversity mode on a slot by slot basis. When transmitting in the diversity mode, separate pilot signals are delivered over a first and second antenna. When transmitting in the non-diversity mode, substantially identical pilot signals are delivered over the first and second antennas with available pilot power substantially equally distributed therebetween.

Abstract translation: 提供了一种无线通信系统，其中可以在分集模式或非分集模式下逐个进行传输。 当在分集模式下发送时，分离的导频信号通过第一和第二天线传送。 当以非分集模式发送时，基本上相同的导频信号通过第一和第二天线以基本上均匀分布的可用导频功率传送。

公开(公告)号：EP1605721A1

公开(公告)日：2005-12-14

申请号：EP05253431.0

申请日：2005-06-03

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Khan, Farooq Ullah

IPC: H04Q7/36 ,  H04L27/26

CPC classification number: H04L5/006 ,  H04L5/0007 ,  H04L5/0046

Abstract: A method is provided for controlling transmissions between a base station and a mobile station in a wireless system using a plurality of subcarriers. A subcarrier allocation scheme is proposed where a total scheduling interval is divided into at least two sub-intervals. In a first interval, data transmission takes place using a large number of subcarriers. In a second interval, a smaller number of subcarriers are used for transmission. In a time-synchronized system, the first interval overlaps with the first interval in at least some neighboring cells and the second interval overlaps with the second interval in at least some neighboring cells.

公开(公告)号：EP1605658A1

公开(公告)日：2005-12-14

申请号：EP05253433.6

申请日：2005-06-03

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Khan, Farooq Ullah

IPC: H04L27/26

CPC classification number: H04L27/2607 ,  H04L27/2647

Abstract: In an OFDM communications system, cyclic prefix and postfix samples are used to improve the reliability of a received OFDM symbol. Typically, the prefix and postfix extensions are merely repeated portions of the OFDM symbol that are ordinarily discarded during the decoding process. In the instant invention, the cyclic prefix and postfix samples are not indiscriminately discarded, but rather, they are first analyzed to determine which, if any, have been corrupted. The corrupted samples are discarded, but the uncorrupted samples are combined with the corresponding portion of the OFDM symbol to improve the OFDM symbol demodulation/decoding reliability.

公开(公告)号：EP1209838B1

公开(公告)日：2005-01-19

申请号：EP01304723.8

申请日：2001-05-29

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Gopalakrishnan, Nandu ,  Hu, Teck H. ,  Khan, Farooq Ullah ,  Kogiantis, Achilles George ,  Monogioudis, Pantelis ,  Sampath, Ashwin

IPC: H04L1/00

CPC classification number: H04L1/0027 ,  H04L1/0002 ,  H04L1/0025

公开(公告)号：EP1478113A1

公开(公告)日：2004-11-17

申请号：EP04252516.2

申请日：2004-04-29

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Khan, Farooq Ullah

IPC: H04J13/02 ,  H04J11/00

CPC classification number: H04J13/18 ,  H04J13/0048 ,  H04W72/08

Abstract: A method of adaptive Walsh code allocation in a wireless communication system. The method includes the step of each voice user transmitting quality condition signal, such as a pilot signal strength measurement to a corresponding base station. Upon receiving each quality condition signal, the method includes determining a spreading factor for each voice user in response to its quality condition signal. A Walsh code is thereafter allocated to each voice user in response to the determined corresponding spreading factor. Thus, for example, if the quality condition signal of a first voice user is relatively higher than the quality condition signal of a second voice user, the spreading factor allocated to the first voice user should be longer than the spreading factor of the second voice user.

Abstract translation: 一种在无线通信系统中自适应沃尔什码分配的方法。 该方法包括每个语音用户向对应的基站发送诸如导频信号强度测量的质量状态信号的步骤。 在接收到每个质量状况信号时，该方法包括响应于其质量状况信号确定每个语音用户的扩展因子。 响应于所确定的相应扩频因子，之后将沃尔什码分配给每个语音用户。 因此，例如，如果第一语音用户的质量状况信号相对高于第二语音用户的质量状况信号，则分配给第一语音用户的扩频因子应该比第二语音用户的扩频因子更长 。