专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

71. 发明申请

US20110211474A1 METHOD AND APPARATUS FOR CALIBRATION AND CHANNEL STATE FEEDBACK TO SUPPORT TRANSMIT BEAMFORMING IN A MIMO SYSTEM 审中-公开
标题翻译：用于在MIMO系统中支持发射波束的校准和信道状态反馈的方法和装置
公开(公告)号：US20110211474A1
公开(公告)日：2011-09-01
申请号：US13071600
申请日：2011-03-25
申请人： Chang-Soo Koo , Arty Chandra , Peter J. Voltz , Chia-Pang Yen , Jin Wang , Robert Lind Olesen
发明人： Chang-Soo Koo , Arty Chandra , Peter J. Voltz , Chia-Pang Yen , Jin Wang , Robert Lind Olesen
IPC分类号： H04L12/26
CPC分类号： H04L25/03343 , H04B7/0408 , H04B7/0626 , H04B7/0643 , H04B17/0085 , H04B17/21 , H04B17/24 , H04L25/0204 , H04L25/0228 , H04L25/0242 , H04L25/0398 , H04L2025/03414 , H04L2025/03426 , H04L2025/03611 , H04L2025/03802
摘要： A method and apparatus for calibration and channel state feedback to support transmit beamforming in a multiple-input multiple-output (MIMO) system are disclosed. For radio frequency (RF) calibration, a first station (STA) sends a calibration request to a second STA, and the second STA sends a sounding packet to the first STA. The first STA receives the sounding packet, performs at least one channel measurement and performs calibration based on the channel measurement. For channel state feedback, the first STA sends a channel state feedback request to the second STA. The second STA sends a sounding packet to the first STA. The first STA receives the sounding packet and performs at least one channel measurement with the sounding packet. The first STA then calculates a steering matrix for transmit beamforming based on the channel measurement.
摘要翻译：公开了一种用于校准和信道状态反馈以支持多输入多输出（MIMO）系统中的发射波束成形的方法和装置。对于射频（RF）校准，第一站（STA）向第二STA发送校准请求，并且第二STA向第一STA发送探测分组。第一STA接收探测包，执行至少一个信道测量，并根据信道测量进行校准。对于信道状态反馈，第一STA向第二STA发送信道状态反馈请求。第二STA向第一STA发送一个探测包。第一STA接收探测分组，并用声音分组进行至少一个信道测量。然后，第一STA基于信道测量来计算用于发射波束形成的导引矩阵。

72. 发明授权

US07920533B2 Method and apparatus for calibration and channel state feedback to support transmit beamforming in a MIMO system 有权
标题翻译：用于校准和信道状态反馈以支持MIMO系统中的发射波束成形的方法和装置
公开(公告)号：US07920533B2
公开(公告)日：2011-04-05
申请号：US11680694
申请日：2007-03-01
申请人： Chang-Soo Koo , Jin Wang , Robert Lind Olesen , Arty Chandra , Peter J. Voltz , Chia-Pang Yen
发明人： Chang-Soo Koo , Jin Wang , Robert Lind Olesen , Arty Chandra , Peter J. Voltz , Chia-Pang Yen
IPC分类号： H04W4/00 , H04B7/00 , H04B17/00 , H04B1/00
CPC分类号： H04L25/03343 , H04B7/0408 , H04B7/0626 , H04B7/0643 , H04B17/0085 , H04B17/21 , H04B17/24 , H04L25/0204 , H04L25/0228 , H04L25/0242 , H04L25/0398 , H04L2025/03414 , H04L2025/03426 , H04L2025/03611 , H04L2025/03802
摘要： A method and apparatus for calibration and channel state feedback to support transmit beamforming in a multiple-input multiple-output (MIMO) system are disclosed. For radio frequency (RF) calibration, a first station (STA) sends a calibration request to a second STA, and the second STA sends a sounding packet to the first STA. The first STA receives the sounding packet, performs at least one channel measurement and performs calibration based on the channel measurement. For channel state feedback, the first STA sends a channel state feedback request to the second STA. The second STA sends a sounding packet to the first STA. The first STA receives the sounding packet and performs at least one channel measurement with the sounding packet. The first STA then calculates a steering matrix for transmit beamforming based on the channel measurement.
摘要翻译：公开了一种用于校准和信道状态反馈以支持多输入多输出（MIMO）系统中的发射波束成形的方法和装置。对于射频（RF）校准，第一站（STA）向第二STA发送校准请求，并且第二STA向第一STA发送探测分组。第一STA接收探测包，执行至少一个信道测量，并根据信道测量进行校准。对于信道状态反馈，第一STA向第二STA发送信道状态反馈请求。第二STA向第一STA发送一个探测包。第一STA接收探测分组，并用声音分组进行至少一个信道测量。然后，第一STA基于信道测量来计算用于发射波束形成的导引矩阵。

73. 发明申请

US20070153672A1 METHOD AND APPARATUS FOR SELECTING MULTIPLE TRANSPORT FORMATS AND TRANSMITTING MULTIPLE TRANSPORT BLOCKS SIMULTANEOUSLY WITH MULTIPLE H-ARQ PROCESSES 有权
标题翻译：用于选择多个运输格式的方法和装置，并且同时传送多个H-ARQ过程的多个运输块
公开(公告)号：US20070153672A1
公开(公告)日：2007-07-05
申请号：US11614153
申请日：2006-12-21
申请人： Stephen Terry , Jin Wang , Arty Chandra
发明人： Stephen Terry , Jin Wang , Arty Chandra
IPC分类号： H04J11/00
CPC分类号： H04L5/0057 , H04L1/0025 , H04L1/0026 , H04L1/1678 , H04L1/1812 , H04L1/1822 , H04L1/1825 , H04L1/1887 , H04L1/1893 , H04W72/0413 , H04W72/085
摘要： A method and apparatus for selecting multiple transport formats and transmitting multiple transport blocks (TBs) in a transmission time interval simultaneously with multiple hybrid automatic repeat request (H-ARQ) processes in a wireless communication system are disclosed. Available physical resources and H-ARQ processes associated with the available physical resources are identified and channel quality of each of the available physical resources is determined. Quality of service (QoS) requirements of higher layer data to be transmitted are determined. The higher layer data is mapped to at least two H-ARQ processes. Physical transmission and H-ARQ configurations to support QoS requirements of the higher layer data mapped to each H-ARQ process are determined. TBs are generated from the mapped higher layer data in accordance with the physical transmission and H-ARQ configurations of each H-ARQ process, respectively. The TBs are transmitted via the H-ARQ processes simultaneously.
摘要翻译：公开了一种用于在无线通信系统中与多个混合自动重复请求（H-ARQ）过程同时在传输时间间隔中选择多个传输格式并发送多个传输块（TB）的方法和装置。识别与可用物理资源相关联的可用物理资源和H-ARQ进程，并确定每个可用物理资源的信道质量。确定要发送的较高层数据的服务质量（QoS）要求。较高层数据映射到至少两个H-ARQ过程。确定物理传输和H-ARQ配置，以支持映射到每个H-ARQ过程的较高层数据的QoS要求。根据每个H-ARQ过程的物理传输和H-ARQ配置，分别从映射的较高层数据生成TB。 TB同时通过H-ARQ过程传输。

74. 发明申请

US20060209876A1 Access point using directional antennas for uplink transmission in a WLAN 审中-公开
标题翻译：使用定向天线的接入点用于WLAN中的上行链路传输
公开(公告)号：US20060209876A1
公开(公告)日：2006-09-21
申请号：US11343397
申请日：2006-01-31
申请人： Kai Liu , Carl Wang , Arty Chandra , Jin Wang
发明人： Kai Liu , Carl Wang , Arty Chandra , Jin Wang
IPC分类号： H04L12/413
CPC分类号： H04W16/28 , H04B7/0695
摘要： An access point receives uplink transmissions from client stations using directional antenna beams. The directional antenna beams are generated by an antenna array. The different directional antenna beams are assigned beam identification numbers, and a preferred antenna beam is selected for each client station. The client stations in the different antenna beam regions initiate their uplink transmissions using assigned backoff slots within the contention window. The access point selects the preferred directional antenna beam corresponding to the directional antenna beams assigned to the backoff slots.
摘要翻译：接入点使用定向天线波束从客户端站接收上行链路传输。定向天线波束由天线阵列产生。不同的定向天线波束被分配波束识别号，并且为每个客户站选择优选的天线波束。不同天线波束区域中的客户站在竞争窗口内使用分配的退避时隙来发起其上行链路传输。接入点选择对应于分配给退避时隙的定向天线波束的优选定向天线波束。

75. 发明申请

US20080084849A1 AUTONOMOUS TIMING ADVANCE ADJUSTMENT DURING HANDOVER 审中-公开
标题翻译：自动定时提前进行调整
公开(公告)号：US20080084849A1
公开(公告)日：2008-04-10
申请号：US11867414
申请日：2007-10-04
申请人： Jin Wang , Stephen Terry , Arty Chandra , Allan Tsai , Donald Grieco
发明人： Jin Wang , Stephen Terry , Arty Chandra , Allan Tsai , Donald Grieco
IPC分类号： H04Q7/00
CPC分类号： H04W36/08 , H04W56/0045
摘要： A method and apparatus for uplink synchronization during handover are disclosed. A wireless transmit/receive unit (WTRU) measures a downlink receipt timing difference between a source Node-B and a target Node-B. The WTRU calculates a target Node-B timing advance value based on the downlink receipt timing difference, a source Node-B timing advance value, and a relative downlink transmit timing difference between the target Node-B and the source Node-B. The WTRU then applies the target Node-B timing advance value in transmission to the target Node-B. The source Node-B may calculate the relative downlink transmit timing difference between the target Node-B and the source Node-B, and send it to the WTRU. The source Node-B may provide the source Node-B timing advance value more frequently during handover. The WTRU may measure the downlink receipt timing difference by averaging multiple first significant paths (FSPs) over a certain time window.
摘要翻译：公开了一种在切换期间上行链路同步的方法和装置。无线发射/接收单元（WTRU）测量源节点B和目标节点B之间的下行接收定时差。 WTRU基于目标节点B和源节点B之间的下行接收定时差，源节点B定时提前值和相对下行链路传输定时差来计算目标节点B定时提前值。然后，WTRU将传输中的目标节点B定时提前值应用于目标节点B。源节点B可以计算目标节点B和源节点B之间的相对下行链路传输定时差，并将其发送到WTRU。源节点B可以在切换期间更频繁地提供源节点B定时提前值。 WTRU可以通过在特定时间窗口上平均多个第一有效路径（FSP）来测量下行链路接收定时差异。

76. 发明申请

US20080008212A1 RADIO LINK FAILURE DETECTION PROCEDURES IN LONG TERM EVOLUTION UPLINK AND DOWNLINK AND APPARATUS THEREFOR 有权
标题翻译：无线链路故障检测程序长期演进上行链路和下行链路及其设备
公开(公告)号：US20080008212A1
公开(公告)日：2008-01-10
申请号：US11742847
申请日：2007-05-01
申请人： Jin Wang , Stephen Terry , Arty Chandra , John Chen
发明人： Jin Wang , Stephen Terry , Arty Chandra , John Chen
IPC分类号： H04J3/06
CPC分类号： H04B7/2637 , H04L1/24 , H04W24/08 , H04W56/00
摘要： A method and apparatus for detecting a radio link (RL) failure for uplink (UL) and downlink (DL) in a long term evolution (LTE) wireless communication system including at least one wireless transmit/receive unit (WTRU) and at least one evolved Node-B (eNodeB) are disclosed. A determination is made as to whether an RL has an in-synchronization status or an out-of-synchronization status. An RL failure is declared if an out-of-synchronization status is detected.
摘要翻译：一种用于在包括至少一个无线发射/接收单元（WTRU）和至少一个无线发射/接收单元（WTRU）的长期演进（LTE）无线通信系统中检测用于上行链路（UL）和下行链路（DL）的无线电链路（RL）故障的方法和装置演进型节点B（eNodeB）。确定RL是否具有同步状态或不同步状态。如果检测到不同步状态，则会声明RL故障。

77. 发明申请

US20070293224A1 METHODS AND SYSTEM FOR PERFORMING HANDOVER IN A WIRELESS COMMUNICATION SYSTEM 有权
标题翻译：在无线通信系统中执行切换的方法和系统
公开(公告)号：US20070293224A1
公开(公告)日：2007-12-20
申请号：US11765013
申请日：2007-06-19
申请人： Jin Wang , Arty Chandra , Stephen Terry
发明人： Jin Wang , Arty Chandra , Stephen Terry
IPC分类号： H04Q7/20
CPC分类号： H04W36/0061 , H04W36/00 , H04W36/0055 , H04W36/0072 , H04W36/0083 , H04W56/001 , H04W92/20
摘要： A method and system for performing handover in a third generation (3G) long term evolution (LTE) system are disclosed. A source evolved Node-B (eNode-B) makes a handover decision based on measurements and sends a handover request to a target eNode-B. The target eNode-B sends a handover response to the source eNode-B indicating that a handover should commence. The source eNode-B then sends a handover command to a wireless transmit/receive unit (WTRU). The handover command includes at least one of reconfiguration information, information regarding timing adjustment, relative timing difference between the source eNode-B and the target eNode-B, information regarding an initial scheduling procedure at the target eNode-B, and measurement information for the target eNode-B. The WTRU then accesses the target eNode-B and exchanges layer 1/2 signaling to perform downlink synchronization, timing adjustment, and uplink and downlink resource assignment based on information included in the handover command.
摘要翻译：公开了一种在第三代（3G）长期演进（LTE）系统中进行切换的方法和系统。源演进节点B（eNode-B）基于测量进行切换决定，并向目标eNode-B发送切换请求。目标eNode-B向源eNode-B发送指示切换应该开始的切换响应。源eNode-B然后向无线发射/接收单元（WTRU）发送切换命令。切换命令包括重新配置信息，关于定时调整的信息，源eNode-B和目标eNode-B之间的相对定时差异，关于目标eNode-B的初始调度过程的信息，以及用于目标eNode-B。然后，WTRU基于包括在切换命令中的信息来访问目标eNode-B并交换层1/2信令以执行下行链路同步，定时调整以及上行链路和下行链路资源分配。

78. 发明申请

US20070206504A1 METHOD AND APPARATUS FOR CALIBRATION AND CHANNEL STATE FEEDBACK TO SUPPORT TRANSMIT BEAMFORMING IN A MIMO SYSTEM 有权
标题翻译：用于在MIMO系统中支持发射波束的校准和信道状态反馈的方法和装置
公开(公告)号：US20070206504A1
公开(公告)日：2007-09-06
申请号：US11680694
申请日：2007-03-01
申请人： Chang-Soo Koo , Arty Chandra , Peter Voltz , Chia-Pang Yen , Jin Wang , Robert Olesen
发明人： Chang-Soo Koo , Arty Chandra , Peter Voltz , Chia-Pang Yen , Jin Wang , Robert Olesen
IPC分类号： H04L1/00
CPC分类号： H04L25/03343 , H04B7/0408 , H04B7/0626 , H04B7/0643 , H04B17/0085 , H04B17/21 , H04B17/24 , H04L25/0204 , H04L25/0228 , H04L25/0242 , H04L25/0398 , H04L2025/03414 , H04L2025/03426 , H04L2025/03611 , H04L2025/03802
摘要： A method and apparatus for calibration and channel state feedback to support transmit beamforming in a multiple-input multiple-output (MIMO) system are disclosed. For radio frequency (RF) calibration, a first station (STA) sends a calibration request to a second STA, and the second STA sends a sounding packet to the first STA. The first STA receives the sounding packet, performs at least one channel measurement and performs calibration based on the channel measurement. For channel state feedback, the first STA sends a channel state feedback request to the second STA. The second STA sends a sounding packet to the first STA. The first STA receives the sounding packet and performs at least one channel measurement with the sounding packet. The first STA then calculates a steering matrix for transmit beamforming based on the channel measurement.
摘要翻译：公开了一种用于校准和信道状态反馈以支持多输入多输出（MIMO）系统中的发射波束成形的方法和装置。对于射频（RF）校准，第一站（STA）向第二STA发送校准请求，并且第二STA向第一STA发送探测分组。第一STA接收探测包，执行至少一个信道测量，并根据信道测量进行校准。对于信道状态反馈，第一STA向第二STA发送信道状态反馈请求。第二STA向第一STA发送一个探测包。第一STA接收探测分组，并用声音分组进行至少一个信道测量。然后，第一STA基于信道测量来计算用于发射波束形成的导引矩阵。

79. 发明申请

US20070165736A1 Method and apparatus for selecting a beam combination in a MIMO wireless communication system 失效
标题翻译：用于在MIMO无线通信系统中选择波束组合的方法和装置
公开(公告)号：US20070165736A1
公开(公告)日：2007-07-19
申请号：US11377152
申请日：2006-03-16
申请人： Jin Wang , Arty Chandra , Inhyok Cha , Yingxue Li
发明人： Jin Wang , Arty Chandra , Inhyok Cha , Yingxue Li
IPC分类号： H04L1/02
CPC分类号： H04B7/0695 , H04B7/088 , H04L1/0003 , H04L1/0009 , H04L1/0025
摘要： A method and apparatus for selecting a beam combination of beam switched antennas in a multiple-input multiple-output (MIMO) wireless communication system including a first node and a second node. The first node sends a plurality of modulation and coding scheme (MCS) requests to the second node. Each of the plurality of MCS requests is sent using a particular beam combination. The second node receives the MCS requests and generates MCS feedback signals for each of the MCS requests. Each MCS feedback signal includes an MCS recommendation for the particular beam. The first node selects a beam combination for communicating with the second node based on the MCS recommendations.
摘要翻译：一种用于在包括第一节点和第二节点的多输入多输出（MIMO）无线通信系统中选择波束切换天线的波束组合的方法和装置。第一节点向第二节点发送多个调制和编码方案（MCS）请求。使用特定的波束组合发送多个MCS请求中的每一个。第二节点接收MCS请求，并为每个MCS请求生成MCS反馈信号。每个MCS反馈信号包括针对特定波束的MCS推荐。第一节点基于MCS建议选择用于与第二节点进行通信的波束组合。

80. 发明授权

US08504110B2 Method and apparatus for transferring smart antenna capability information 有权
标题翻译：用于传送智能天线能力信息的方法和装置
公开(公告)号：US08504110B2
公开(公告)日：2013-08-06
申请号：US11066915
申请日：2005-02-25
申请人： Arty Chandra , Inhyok Cha , Paul Marinier , Vincent Roy
发明人： Arty Chandra , Inhyok Cha , Paul Marinier , Vincent Roy
IPC分类号： H04M1/00
CPC分类号： H04W24/02 , H04B7/0628 , H04B7/0689 , H04W28/18 , H04W84/12
摘要： A system for exchanging smart antenna capability information between a transmitting station (STA) and a receiving STA in a wireless communication system includes an antenna capability information element (IE) that includes information regarding the capability of the transmitting STA. The antenna capability IE is sent from the transmitting STA to the receiving STA prior to data transmission between the transmitting STA and the receiving STA. When used in a wireless local area network, the antenna capability IE can be sent as part of a management frame, control frame, or data frame.
摘要翻译：一种用于在无线通信系统中的发送站（STA）和接收STA之间交换智能天线能力信息的系统包括：天线能力信息元素（IE），其包括关于发送STA的能力的信息。在发送STA和接收STA之间的数据传输之前，天线能力IE从发送STA发送到接收STA。当在无线局域网中使用时，天线能力IE可以作为管理帧，控制帧或数据帧的一部分发送。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式