公开(公告)号：WO2007133394A3

公开(公告)日：2008-01-24

申请号：PCT/US2007009846

申请日：2007-04-24

Applicant: LUCENT TECHNOLOGIES INC ,  BACHL RAINER WALTER ,  CHENG FANG-CHEN ,  SEYMOUR JAMES PAUL ,  SONG LEI ,  TATESH SAID

Inventor： BACHL RAINER WALTER ,  CHENG FANG-CHEN ,  SEYMOUR JAMES PAUL ,  SONG LEI ,  TATESH SAID

IPC: H04W16/12

CPC classification number: H04L5/0037 ,  H04L5/0007 ,  H04W16/12 ,  H04W72/04

Abstract: A method is provided for operating a multi-bandwidth OFDMA system that can achieve an enhanced bandwidth efficiency due to windowing without significantly impacting the underlying physical design of the receive filters. The method comprises establishing a bandwidth over which the radio resources transmit signals, the bandwidth being comprised of an edge-band (505) and a center-band (510). Narrow band radio resources (700) are assigned to a portion of the bandwidth that is at least partially within the edge-band (505).

Abstract translation: 提供了一种用于操作多带宽OFDMA系统的方法，其可以通过窗口实现增强的带宽效率，而不会显着影响接收滤波器的底层物理设计。 该方法包括建立无线电资源发送信号的带宽，带宽由边缘带（505）和中心频带（510）组成。 窄带无线电资源（700）被分配给至少部分在边缘带（505）内的带宽的一部分。

公开(公告)号：MX2008011861A

公开(公告)日：2008-11-28

申请号：MX2008011861

申请日：2007-03-09

Applicant: LUCENT TECHNOLOGIES INC

Inventor： CHENG FANG-CHEN ,  LI SHUPENG ,  SONG LEI

IPC: H04L12/56 ,  H04W24/02 ,  H04W28/00 ,  H04W72/00 ,  H04W92/04 ,  H04W92/20

Abstract: Se proporciona un método para la coordinación de la administración distribuida de recurso de radio. El método comprende la comunicación de información entre una pluralidad de unidades que tiene responsabilidades de administración de recurso de radio, en donde la información comunicada está relacionada con los recursos de radio asociados con cada unidad.

公开(公告)号：AU6246500A

公开(公告)日：2001-04-12

申请号：AU6246500

申请日：2000-10-04

Applicant: LUCENT TECHNOLOGIES INC

Inventor： GANDHI ASIF DAWOODI ,  VITEBSKY STANLEY ,  THOMAS MATHEW ,  SONG LEI ,  IBANEZ MARC BENEDICT

IPC: H04B7/005 ,  H04B7/26 ,  H04Q7/34

Abstract: A system and a method for reverse link power control in a wireless communications network generates power adjust commands for mobiles being served by a network base station in a centralized manner by considering overall system performance when an increased interference condition is detected. In one implementation, a base station power control processor adopts a modified reverse inner loop power control (RILPC) and/or a reverse outer loop power control (ROLPC) algorithm when an increased interference condition is detected. According to the modified RILPC algorithm, a percentage of power-up adjust commands which would normally be generated when Eb/No measurements for served mobiles do not meet target Eb/No levels are converted to power down-adjust commands, thereby forcing some mobiles to reduce transmit power, at least temporarily, to constrain interference. When the increased interference condition persists, the percentage of power-up adjust commands which are converted to power-down commands may be changed. According to the modified ROLPC algorithm, the power control processor adjusts target Eb/No levels in a centralized manner based on an overall system state so that only a limited number of target Eb/No levels are allowed to increase when frame erasures occur. By preventing a percentage of target Eb/No level increases, at least temporarily, when frame erasures occur, a percentage of power up-adjust commands are avoided. Therefore, a similar effect to that achieved by the modified RILPC is achieved. In accordance with still a further implementation of the present invention, the modified RILPC algorithm may be used in combination with the modified ROLPC algorithm to provide greater resistance to increased interference conditions.

公开(公告)号：MX2008013759A

公开(公告)日：2008-11-14

申请号：MX2008013759

申请日：2007-04-24

Applicant: LUCENT TECHNOLOGIES INC

Inventor： CHENG FANG-CHEN ,  SONG LEI ,  BACHL RAINER WALTER

IPC: H04L27/26

Abstract: Se proporciona un método para mantener sincronización entre una AT y una estación base durante un periodo inactivo. Durante el periodo inactivo, un número reducido de señales de referencia de enlace ascendente para cálculo de calidad de canales de enlace ascendente son enviadas a la estación base por la AT. Las señales de referencia de enlace ascendente son enviadas para ayudar a una desmodulación coherente y cálculo de calidad de canal de enlace ascendente para programación. Durante el periodo inactivo de enlace ascendente, los números de señales de referencia de enlace ascendente se diseñan para ser reducidos en anchos de banda coherentes selectivos. La selección de los anchos de banda coherentes se alterna en tiempo y cubre el espectro completo para permitir el cálculo de calidad de canal a través del espectro completo.

公开(公告)号：BR0005605A

公开(公告)日：2001-06-12

申请号：BR0005605

申请日：2000-09-29

Applicant: LUCENT TECHNOLOGIES INC

Inventor： GANDHI ASIF DAWOODI ,  VITEBSKY STANLEY ,  IBANEZ MARC BENEDICT ,  SONG LEI ,  THOMAS MATHEW

IPC: H04B7/005 ,  H04B7/26 ,  H04Q7/32

Abstract: A system and a method for reverse link power control in a wireless communications network generates power adjust commands for mobiles being served by a network base station in a centralized manner by considering overall system performance when an increased interference condition is detected. In one implementation, a base station power control processor adopts a modified reverse inner loop power control (RILPC) and/or a reverse outer loop power control (ROLPC) algorithm when an increased interference condition is detected. According to the modified RILPC algorithm, a percentage of power-up adjust commands which would normally be generated when Eb/No measurements for served mobiles do not meet target Eb/No levels are converted to power down-adjust commands, thereby forcing some mobiles to reduce transmit power, at least temporarily, to constrain interference. When the increased interference condition persists, the percentage of power-up adjust commands which are converted to power-down commands may be changed. According to the modified ROLPC algorithm, the power control processor adjusts target Eb/No levels in a centralized manner based on an overall system state so that only a limited number of target Eb/No levels are allowed to increase when frame erasures occur. By preventing a percentage of target Eb/No level increases, at least temporarily, when frame erasures occur, a percentage of power up-adjust commands are avoided. Therefore, a similar effect to that achieved by the modified RILPC is achieved. In accordance with still a further implementation of the present invention, the modified RILPC algorithm may be used in combination with the modified ROLPC algorithm to provide greater resistance to increased interference conditions.

公开(公告)号：CA2322236A1

公开(公告)日：2001-04-06

申请号：CA2322236

申请日：2000-10-03

Applicant: LUCENT TECHNOLOGIES INC

Inventor： THOMAS MATHEW ,  SONG LEI ,  IBANEZ MARC BENEDICT ,  GANDHI ASIF DAWOODI ,  VITEBSKY STANLEY

IPC: H04B7/005 ,  H04B7/26 ,  H04Q7/36

Abstract: A system and a method for reverse link power control in a wireless communications network generates power adjust commands for mobiles being served by a network base station in a centralized manner by considering overall system performance when an increased interference condition is detected. In one implementation, a base station power control processor adopts a modified reverse inner loop power control (RILPC) and/or a reverse outer loop power control (ROLPC) algorithm when an increased interference condition is detected. According to the modified RILPC algorithm, a percentage of power-up adjust commands which would normally be generated when E b/N o measurements for served mobiles do not meet target E b/N o levels are converted to power down-adjust commands, thereby forcing some mobiles to reduce transmit power, at least temporarily, to constrain interference. When the increased interference condition persists, the percentage of power-up adjust commands which are converted to power-down commands may be changed. According to the modified ROLPC algorithm, the power control processor adjusts target E b/N o levels in a centralized manner based on an overall system state so that only a limited number of target E b/N o levels are allowed to increase when frame erasures occur. By preventing a percentage of target E b/N o level increases, at least temporarily, when frame erasures occur, a percentage of power up-adjust commands are avoided. Therefore, a similar effect to that achieved by the modified RILPC is achieved. In accordance with still a further implementation of the present invention, the modified RILPC algorithm may be used in combination with the modified ROLPC algorithm to provide greater resistance to increased interference conditions.

公开(公告)号：WO2009045734A3

公开(公告)日：2010-03-11

申请号：PCT/US2008076787

申请日：2008-09-18

Applicant: LUCENT TECHNOLOGIES INC ,  CHENG FANG-CHEN ,  SONG LEI

Inventor： CHENG FANG-CHEN ,  SONG LEI

IPC: H04L1/18 ,  H04L1/00

CPC classification number: H04L5/0053 ,  H04L1/0027 ,  H04L1/1671 ,  H04L1/1692 ,  H04L1/1893 ,  H04L5/0007

Abstract: An exemplary method of communicating includes multiplexing control signaling in a physical uplink control channel (PUCCH) onto a physical uplink shared channel (PUSCH) by puncturing PUSCH data with PUCCH control information using a uniform distribution of the PUCCH information within at least one resource block of the PUSCH data. One example includes using a first constant amplitude zero autocorrelation sequence (CAZAC) index on PUCCH for communicating CQI and ACK information together and using a second, different CAZAC sequence index for communicating CQI information alone or with NAK information or DTX. The used index provides an indication of whether ACK information is communicated. The used index also provides implicit DTX detection without additional processing.

Abstract translation: 一种通信的示例性方法包括：在物理上行链路控制信道（PUCCH）中将控制信令复用到物理上行链路共享信道（PUSCH）上，通过使用PUCCH信息在PUCCH资源块的至少一个资源块内均匀分布PUCCH信息 PUSCH数据。 一个例子包括在PUCCH上使用第一恒定幅度零自相关序列（CAZAC）索引，用于一起传送CQI和ACK信息，并且使用第二不同的CAZAC序列索引来单独地传送CQI信息或与NAK信息或DTX通信。 所使用的索引提供ACK信息是否通信的指示。 所使用的索引还提供隐含的DTX检测，无需额外的处理。

公开(公告)号：WO2007133395A3

公开(公告)日：2008-01-24

申请号：PCT/US2007009847

申请日：2007-04-24

Applicant: LUCENT TECHNOLOGIES INC ,  BACHL RAINER WALTER ,  CHENG FANG-CHEN ,  SONG LEI

Inventor： BACHL RAINER WALTER ,  CHENG FANG-CHEN ,  SONG LEI

IPC: H04L27/26

CPC classification number: H04L27/261 ,  H04B7/2637 ,  H04W72/1226

Abstract: A method is provided for maintaining synchronization between an AT and a base station during an idle period. During the idle period, a reduced number of uplink reference signals for uplink channel quality estimation are sent to the base station by the AT. The uplink reference signals are sent to assist coherent demodulation and uplink channel quality estimation for scheduling. During the uplink idle period, the numbers of uplink reference signals are designed to be reduced in selective coherent bandwidths. The selection of the coherent bandwidth alternates in time and covers the entire spectrum to allow the channel quality estimation through the entire spectrum.

Abstract translation: 提供了一种用于在空闲时段期间保持AT与基站之间的同步的方法。 在空闲期间，用于上行链路信道质量估计的上行链路参考信号的数量减少由AT发送到基站。 发送上行链路参考信号以协助相干解调和上行链路信道质量估计进行调度。 在上行链路空闲时段期间，上行链路参考信号的数量被设计为在选择性相干带宽中减少。 相干带宽的选择在时间上交替并且覆盖整个频谱以允许通过整个频谱的信道质量估计。

公开(公告)号：WO2007142939A2

公开(公告)日：2007-12-13

申请号：PCT/US2007012689

申请日：2007-05-29

Applicant: LUCENT TECHNOLOGIES INC ,  CHENG FANG-CHEN ,  LI SHUPENG ,  SONG LEI

Inventor： CHENG FANG-CHEN ,  LI SHUPENG ,  SONG LEI

IPC: H04W16/10 ,  H04W72/12

CPC classification number: H04W72/1278 ,  H04B7/022 ,  H04W16/10 ,  Y02D70/00 ,  Y02D70/122 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/442

Abstract: A method and an apparatus for scheduling transmissions of a plurality of cells in a wireless communications system including one or more base stations is provided. The method comprises providing a set of virtual channels to enable an intra-cell transmission orthogonal to another transmission within each cell of the plurality of cells and inter-cell transmissions orthogonal to other transmissions across a cluster of cells associated with the one or more base stations. The method further comprises exchanging signaling messages between two or more base stations to coordinate- scheduling of the intra-cell transmission with the inter-cell transmissions for the cluster of cells. For optimizing a parameter associated with scheduling of a plurality of users from a cluster of cells in a wireless communication system, an optimal power level for the parameter of each active user may be searched to maximize an indication of system capacity of the wireless communication system. This enables a coordinated jointly scheduling of the users active in the cluster of cells based on the optimal power levels such that the total interference within the cluster may be minimized to maximize the system throughput/capacity.

Abstract translation: 提供了一种用于在包括一个或多个基站的无线通信系统中调度多个小区的传输的方法和装置。 该方法包括提供一组虚拟信道以使得能够与多个小区的每个小区内的另一个传输正交的小区内传输，以及与一个或多个基站相关联的小区的其他传输正交的小区间传输 。 该方法还包括在两个或多个基站之间交换信令消息以协调小区内传输的调度与小区簇的小区间传输。 为了优化与来自无线通信系统中的小区的集群的多个用户的调度相关联的参数，可以搜索每个活动用户的参数的最佳功率级别以最大化无线通信系统的系统容量的指示。 这使得能够基于最佳功率电平来协调在小区集群中活动的用户的协调调度，使得可以最小化集群内的总干扰以使系统吞吐量/容量最大化。