公开(公告)号：US08463313B2

公开(公告)日：2013-06-11

申请号：US13083724

申请日：2011-04-11

申请人： Robert T. Love ,  Kenneth A. Stewart ,  Amitava Ghosh

发明人： Robert T. Love ,  Kenneth A. Stewart ,  Amitava Ghosh

IPC分类号： H04B7/005

CPC分类号： H04W72/1231 ,  H04L1/1845 ,  H04L1/20 ,  H04W52/146 ,  H04W72/1252

摘要： A communication system supports H-ARQ, AMC, active set handoff, and scheduling functions in a distributed fashion by allowing a mobile station (MS) to signal control information corresponding to an enhanced reverse link transmission to Active Set base transceiver stations (BTSs) and by allowing the BTSs to perform control functions that were supported by an RNC in the prior art. The communication system allows time and SIR-based H-ARQ flush functions at the BTSs during soft handoff (SHO), provides an efficient control channel structure to support scheduling, H-ARQ, AMC functions for an enhanced reverse link, or uplink, channel in order to maximize throughput, and enables an MS in a SHO region to choose a scheduling assignment corresponding to a best TFRI out of multiple assignments it receives from multiple active set BTS. As a result, the enhanced uplink channel can be scheduled during SHO without any explicit communication between the BTSs.

摘要翻译： 通信系统通过允许移动台（MS）将对应于增强的反向链路传输的控制信息发送到主动集群基站收发台（BTS）和通信系统中，以分布式方式支持H-ARQ，AMC，主动设置切换和调度功能， 通过允许BTS执行现有技术中由RNC支持的控制功能。 通信系统在软切换（SHO）期间允许在BTS处的时间和基于SIR的H-ARQ冲洗功能，提供有效的控制信道结构以支持调度，用于增强的反向链路的H-ARQ，AMC功能或上行链路 以便最大化吞吐量，并且使得SHO区域中的MS能够从多个活动集BTS接收的多个分配中选择对应于最佳TFRI的调度分配。 结果，可以在SHO期间调度增强上行链路信道，而不在BTS之间进行任何明确的通信。

公开(公告)号：US08374146B2

公开(公告)日：2013-02-12

申请号：US13330814

申请日：2011-12-20

申请人： Rapeepat Ratasuk ,  Amitava Ghosh ,  Weimin Xiao

发明人： Rapeepat Ratasuk ,  Amitava Ghosh ,  Weimin Xiao

IPC分类号： H04W4/00

CPC分类号： H04L1/1861 ,  H04B1/707 ,  H04J11/005 ,  H04L5/0007 ,  H04L5/0016 ,  H04L5/0053 ,  H04L5/0091

摘要： A communication system provides downlink acknowledgments corresponding to uplink transmission using hybrid automatic repeat request to multiple users in an Orthogonal Frequency Division Multiplexing communication system, wherein a frequency bandwidth comprises multiple frequency sub-carriers, by spreading each acknowledgment of multiple acknowledgments with a selected spreading sequence of multiple spreading sequences to produce multiple spread acknowledgments, wherein each acknowledgment is intended for a different user of the multiple users, and distributing the multiple spread acknowledgments across the multiple frequency sub-carriers.

摘要翻译： 通信系统使用混合自动重复请求向正交频分复用通信系统中的多个用户提供与上行链路传输相对应的下行链路确认，其中频率带宽包括多个频率子载波，通过用选定的扩展序列扩展多个确认的每个确认 多个扩展序列以产生多个扩展确认，其中每个确认旨在用于多个用户的不同用户，并且在多个频率子载波之间分配多个扩展确认。

公开(公告)号：US20120087327A1

公开(公告)日：2012-04-12

申请号：US13330814

申请日：2011-12-20

申请人： Rapeepat Ratasuk ,  Amitava Ghosh ,  Weimin Xiao

发明人： Rapeepat Ratasuk ,  Amitava Ghosh ,  Weimin Xiao

IPC分类号： H04W72/04

CPC分类号： H04L1/1861 ,  H04B1/707 ,  H04J11/005 ,  H04L5/0007 ,  H04L5/0016 ,  H04L5/0053 ,  H04L5/0091

摘要： A communication system provides downlink acknowledgments corresponding to uplink transmission using hybrid automatic repeat request to multiple users in an Orthogonal Frequency Division Multiplexing communication system, wherein a frequency bandwidth comprises multiple frequency sub-carriers, by spreading each acknowledgment of multiple acknowledgments with a selected spreading sequence of multiple spreading sequences to produce multiple spread acknowledgments, wherein each acknowledgment is intended for a different user of the multiple users, and distributing the multiple spread acknowledgments across the multiple frequency sub-carriers.

摘要翻译： 通信系统使用混合自动重复请求向正交频分复用通信系统中的多个用户提供与上行链路传输相对应的下行链路确认，其中频率带宽包括多个频率子载波，通过用选定的扩展序列扩展多个确认的每个确认 多个扩展序列以产生多个扩展确认，其中每个确认旨在用于多个用户的不同用户，并且在多个频率子载波之间分配多个扩展确认。

公开(公告)号：US08000305B2

公开(公告)日：2011-08-16

申请号：US11621587

申请日：2007-01-10

申请人： Jun Tan ,  Amitava Ghosh ,  Rapeepat Ratasuk ,  Fan Wang ,  Weimin Xiao

发明人： Jun Tan ,  Amitava Ghosh ,  Rapeepat Ratasuk ,  Fan Wang ,  Weimin Xiao

IPC分类号： H04B7/216

CPC分类号： H04L27/2613 ,  H04J13/004 ,  H04J13/102 ,  H04L5/0007 ,  H04L5/0021 ,  H04L5/0048 ,  H04L25/0228 ,  H04L27/2605 ,  H04L27/2655

摘要： A system and method for initializing a system communication without previous reservations for random access channel (RACH) access includes a first step of defining at least one spread sequence derived from at least one constant amplitude zero autocorrelation sequence. A next step includes combining the spread sequence with a Walsh code to form an extended spread sequence. A next step includes using the extended spread sequence in a preamble for a RACH. A next step includes sending the preamble to a BTS for acquisition. A next step includes monitoring for a positive acquisition indicator from the BTS. A next step includes scheduling the sending of a RACH message. A next step includes sending the RACH message.

摘要翻译： 用于初始化系统通信而没有对随机接入信道（RACH）接入的先前保留的系统和方法包括定义从至少一个恒定幅度零自相关序列导出的至少一个扩展序列的第一步骤。 下一步包括将扩展序列与沃尔什码组合以形成扩展扩展序列。 下一步包括在RACH的前同步码中使用扩展扩展序列。 下一步包括将前导码发送到BTS进行采集。 下一步包括监测来自BTS的正采集指示符。 下一步包括调度RACH消息的发送。 下一步包括发送RACH消息。

公开(公告)号：US20100165951A1

公开(公告)日：2010-07-01

申请号：US12723392

申请日：2010-03-12

申请人： Robert T. Love ,  Michael J. Carney ,  Amitava Ghosh ,  Rapeepat Ratasuk ,  Weimin Xiao

发明人： Robert T. Love ,  Michael J. Carney ,  Amitava Ghosh ,  Rapeepat Ratasuk ,  Weimin Xiao

IPC分类号： H04W36/00

CPC分类号： H04W72/042 ,  H04W24/00 ,  H04W28/06 ,  H04W36/00 ,  H04W74/0866

摘要： A wireless communication system (100) and method for providing high speed uplink packet access from user equipment (128, 130) to a base station (114, 116, 118, 120). Each of the user equipment (128, 130) and the base station (114, 116, 118, 120) includes a transmitter (1106, 1206), a receiver (1104, 1204), and a controller (1108, 1208) coupled to the transmitter and the receiver. Data packets are transmitted from the user equipment (128, 130) to the base station (114, 116, 118, 120). Control information, corresponding to the data packets, is transmitted from the base station (114, 116, 118, 120) to the user equipment (128, 130). The control information includes at least a control channel acknowledgement field in an absolute grant channel assigned to the user equipment (128, 130). The controller (1108) of the user equipment (128, 130) is configured to utilize the channelization code(s) in response to handoff and/or entering an active channel state.

摘要翻译： 一种用于从用户设备（128,130）向基站（114,116,118,120）提供高速上行链路分组接入的无线通信系统（100）和方法。 每个用户设备（128,130）和基站（114,116,118,120）包括发射机（1106,1206），接收机（1104,1204）和控制器（1108,1208），其耦合到 发射机和接收机。 数据分组从用户设备（128,130）发送到基站（114,116,118,120）。 对应于数据分组的控制信息从基站（114,116,118,120）发送到用户设备（128,130）。 控制信息至少包括分配给用户设备（128,130）的绝对授权信道中的控制信道确认字段。 用户设备（128,130）的控制器（1108）被配置为利用响应于切换和/或进入活动信道状态的信道化码。

公开(公告)号：US07599320B2

公开(公告)日：2009-10-06

申请号：US11485899

申请日：2006-07-13

申请人： Rapeepat Ratasuk ,  Amitava Ghosh ,  Weimin Xiao

发明人： Rapeepat Ratasuk ,  Amitava Ghosh ,  Weimin Xiao

IPC分类号： H04B7/185

CPC分类号： H04W52/16 ,  H04W52/146 ,  H04W52/221 ,  H04W52/223 ,  H04W52/228 ,  H04W52/286 ,  H04W52/32 ,  H04W52/343 ,  H04W52/367

摘要： A communications network (200) for enhanced uplink of High-Speed Uplink Packet Access (HSUPA) in 3G wireless communications includes a mobile transceiver unit (605). The mobile transceiver unit is operable to use a channel prediction to estimate a power margin of one or more dedicated channels, predict a power margin for an acknowledgement transmission based on transmission parameters, reserve a power margin for a channel quality indicator (CQI) transmission, and determine an Enhanced Transport Format Combination (E-TFC) for an uplink data packet transmission based on an available power margin. The communications network also includes a communications network node (610) operable to transmit a power control signal to the mobile transceiver unit.

摘要翻译： 用于3G无线通信中的高速上行链路分组接入（HSUPA）的增强上行链路的通信网络（200）包括移动收发机单元（605）。 移动收发机单元可操作以使用信道预测来估计一个或多个专用信道的功率裕度，基于传输参数预测用于确认传输的功率余量，为信道质量指示符（CQI）传输保留功率余量， 并且基于可用功率余量确定用于上行链路数据分组传输的增强传输格式组合（E-TFC）。 通信网络还包括可操作以将功率控制信号发送到移动收发机单元的通信网络节点（610）。

公开(公告)号：US20090147735A1

公开(公告)日：2009-06-11

申请号：US11950435

申请日：2007-12-05

申请人： Amitava Ghosh ,  Gregory M. Agami ,  Chandrasekar Sankaran ,  Fan Wang ,  Weidong Yang

发明人： Amitava Ghosh ,  Gregory M. Agami ,  Chandrasekar Sankaran ,  Fan Wang ,  Weidong Yang

IPC分类号： H04Q7/00

CPC分类号： H04W8/30

摘要： A wireless communications method and device including a transmitter (130) configured to transmit according to an Orthogonal Frequency Division Multiplexing transmission standard (300), such as the WiMAX standard. The wireless communications device (120) includes a transmission bandwidth controller (136) adapted to configure the transmitter (130) to adjust a transmitted bandwidth (312) by at least one of 1) configuring at least one of a first set of punctured subcarriers (324) and a second set of punctured subcarriers (326) to not be used for data transmission. The first set of punctured subcarriers and the second set of punctured subcarriers are located within opposite edges of the transmission bandwidth (340); and 2) configuring at least a first set of guardband subcarriers (322) and a second set of guardband subcarriers (330), which are located on opposite edges of the transmission bandwidth, to be used for data transmission.

摘要翻译： 一种无线通信方法和装置，包括被配置为根据诸如WiMAX标准的正交频分复用传输标准（300）发送的发射机（130）。 无线通信设备（120）包括适于配置发射机（130）以通过以下至少之一来调整发射带宽（312）的传输带宽控制器（136）：1）配置第一组穿孔子载波中的至少一个（ 324）和第二组穿孔子载波（326），不用于数据传输。 第一组穿孔子载波和第二组穿孔子载波位于传输带宽（340）的相对边缘内; 以及2）配置位于所述传输带宽的相对边缘上的至少第一组保护带子载波（322）和第二组保护带子载波（330），用于数据传输。

公开(公告)号：US20080049749A1

公开(公告)日：2008-02-28

申请号：US11466231

申请日：2006-08-22

申请人： Weimin Xiao ,  Amitava Ghosh ,  Rapeepat Ratasuk

发明人： Weimin Xiao ,  Amitava Ghosh ,  Rapeepat Ratasuk

IPC分类号： H04Q7/00 ,  H04L12/56 ,  H04J3/26

CPC分类号： H04W72/005 ,  H04L1/1692 ,  H04L1/1854 ,  H04L2001/0093

摘要： Embodiments of the present invention provide a manner in which feedback from remote units (120-122) involved in a broadcast/multicast service session can be obtained using shared wireless resources and/or shared signaling sequences. Having feedback information from at least some of the remote units involved in the session enables the network equipment (101) to dynamically manage the session and potentially improve the performance of the session. Moreover, utilizing shared wireless resources and/or shared signaling sequences may reduce the overhead cost of obtaining the feedback as compared to utilizing dedicated resources.

摘要翻译： 本发明的实施例提供了可以使用共享无线资源和/或共享信令序列来获得涉及广播/多播服务会话中的远程单元（120-122）的反馈的方式。 从所述会话中涉及的至少一些远程单元获得反馈信息使得网络设备（101）能够动态地管理该会话并潜在地改善该会话的性能。 此外，与利用专用资源相比，利用共享无线资源和/或共享信令序列可以减少获得反馈的开销成本。

公开(公告)号：US07321570B2

公开(公告)日：2008-01-22

申请号：US10770906

申请日：2004-02-03

申请人： Rapeepat Ratasuk ,  Jean-Aicard Fabien ,  Amitava Ghosh ,  Weimin Xiao

发明人： Rapeepat Ratasuk ,  Jean-Aicard Fabien ,  Amitava Ghosh ,  Weimin Xiao

IPC分类号： H04B7/00 ,  H04Q7/00 ,  H04H1/00

CPC分类号： H04W52/327 ,  H04W72/005

摘要： A communication system is provided that dynamically allocates power to a Multimedia Broadcast/Multicast Service (an MBMS service). In response to determining to establish a Point-to-Multipoint (PTM) communication channel to multiple user equipment (UEs), the communication service assigns the PTM communication channel to the MBMS service, determines a power requirement associated with each user equipment (UE) of the multiple UEs based on a handover quality measurement associated with the UE to produce multiple power requirements, and allocates a power level to the PTM communication channel based on the multiple power requirements. The communication system further dynamically adjusts the allocated power based on a handover quality measurement associated with a UE of the multiple UEs that is received during provision of the MBMS service.

摘要翻译： 提供了一种向多媒体广播/组播服务（MBMS服务）动态分配电力的通信系统。 响应于确定向多个用户设备（UE）建立点对多点（PTM）通信信道，通信服务将PTM通信信道分配给MBMS服务，确定与每个用户设备（UE）相关联的功率需求， 基于与所述UE相关联的切换质量测量来产生多个功率需求，并且基于所述多个功率要求将所述功率电平分配给所述PTM通信信道。 通信系统还基于与在提供MBMS服务期间接收的多个UE的UE相关联的切换质量测量来动态地调整分配的功率。

公开(公告)号：US20070293260A1

公开(公告)日：2007-12-20

申请号：US11676357

申请日：2007-02-19

申请人： Weimin Xiao ,  Amitava Ghosh ,  Rapeepat Ratsuk

发明人： Weimin Xiao ,  Amitava Ghosh ,  Rapeepat Ratsuk

IPC分类号： H04Q7/20

CPC分类号： H04W52/146 ,  H04W52/265

摘要： A communication system optimizes cell edge performance and spectral efficiency by determining an adaptive power control parameter based on system performance metrics measured by a serving Node B and further measured by, and reported to the serving Node B by, neighboring Node B's. The adaptive power control parameter is then used to determine an uplink transmit power of a user equipment (UE) served by the serving Node B. The uplink transmit power may be determined by the Node B and then conveyed to the UE, or the Node B may broadcast the adaptive power control parameter to the UE and the UE may self-determine the uplink transmit power. In addition, as a frequency reuse factor of one has been proposed for such communication systems, interference levels may be even further improved by employment of an intra-site interference cancellation scheme in the sectors serviced by the Node B.

摘要翻译： 通信系统通过基于由服务节点B测量的系统性能指标来确定自适应功率控制参数来优化小区边缘性能和频谱效率，并由相邻节点B进一步测量并向服务节点B报告给服务节点B. 然后，使用自适应功率控制参数来确定由服务节点B服务的用户设备（UE）的上行链路发射功率。上行链路发射功率可以由节点B确定，然后传送给UE，或者节点B 可以向UE广播自适应功率控制参数，并且UE可以自行确定上行链路发射功率。 另外，由于已经为这种通信系统提出了一种频率复用因子，所以通过在由节点B服务的扇区中采用站内干扰消除方案，甚至可以进一步改善干扰水平。