-
公开(公告)号：US07027503B2
公开(公告)日：2006-04-11
申请号：US10162976
申请日：2002-06-04
CPC分类号： H04L1/188 , H04L1/20 , H04L25/03038 , H04L25/03057 , H04L2025/03573 , H04L2025/03617
摘要： Techniques for selecting either a DFE or an LE for use to equalize a received signal, and for quickly and efficiently determining the coefficients for the selected equalizer. In an embodiment, a method is provided whereby the DFE is initially adapted based on the received signal and a particular adaptive algorithm (e.g., the LMS algorithm) for an initial time period. A quality metric is then determined for an output of the DFE. The DFE is selected for use if the quality metric is better than a threshold value, and the LE is selected otherwise. If the LE is selected, then the initial values for the coefficients of the LE may be derived based on the coefficients of a feed-forward filter and a feedback filter for the DFE, and the LE coefficients may further be adapted for an additional time period prior to its use to equalize the received signal.
-
12.发明授权Systems and methods for adaptively allocating resources between a dedicated reference signal and a traffic signal 失效用于在专用参考信号和交通信号之间自适应地分配资源的系统和方法公开(公告)号：US08498650B2
公开(公告)日：2013-07-30
申请号：US10728680
申请日：2003-12-05
CPC分类号： H04W72/08 , H04W72/0413 , H04W72/085
摘要： Systems and methods for adaptively allocating resources between a dedicated reference signal and a traffic signal are disclosed. In an exemplary embodiment, a wireless communication system 100 includes a base station 404. The base station 404 includes a receiver 428 that receives a quality metric 432 from a remote station 106. The quality metric 432 indicates the quality of a signal transmitted from the base station 404 and received by the remote station 106. The base station 404 also includes a resource allocation component 434 that uses the quality metric 432 to allocate a resource between the traffic signal 422 and the dedicated reference signal 418. The base station 404 also includes a transmitter 426 that transmits the traffic signal 422 and the dedicated reference signal 418 to the remote station 106.
摘要翻译： 公开了用于在专用参考信号和交通信号灯之间自适应地分配资源的系统和方法。 在示例性实施例中，无线通信系统100包括基站404.基站404包括从远程站106接收质量度量432的接收机428.质量度量432指示从基站发送的信号的质量 站404并且由远程站106接收。基站404还包括资源分配组件434，其使用质量度量432在业务信号422和专用参考信号418之间分配资源。基站404还包括一个 将业务信号422和专用参考信号418发送到远程站106的发射机426。
-
公开(公告)号：US08391389B2
公开(公告)日：2013-03-05
申请号：US11934916
申请日：2007-11-05
IPC分类号： H04B7/02
CPC分类号： H04B7/04 , H04B1/71072 , H04L25/0224 , H04L25/03019
摘要： Techniques for receiving a MIMO transmission are described. A receiver processes received data for the MIMO transmission based on a front-end filter to obtain filtered data. The receiver further processes the filtered data based on at least one first combiner matrix to obtain detected data for a first frame. The receiver demodulates and decodes this detected data to obtain decoded data for the first frame. The receiver then processes the filtered data based on at least one second combiner matrix and the decoded data for the first frame to cancel interference due to the first frame and obtain detected data for a second frame. The receiver processes this detected data to obtain decoded data for the second frame. The front-end filter processes non on-time signal components in the received data. Each combiner matrix combines on-time signal components in the filtered data to obtain detected data for a channelization code.
摘要翻译： 描述了用于接收MIMO传输的技术。 接收机基于前端滤波器处理用于MIMO传输的接收数据，以获得滤波数据。 接收机还基于至少一个第一组合器矩阵来处理经滤波的数据，以获得第一帧的检测数据。 接收机解调并解码该检测到的数据，以获得第一帧的解码数据。 然后，接收机基于至少一个第二组合器矩阵和第一帧的解码数据处理滤波数据，以消除由于第一帧引起的干扰，并获得第二帧的检测数据。 接收机处理该检测数据以获得第二帧的解码数据。 前端滤波器处理接收到的数据中的非接通时间信号分量。 每个组合器矩阵组合滤波数据中的接通时间信号分量以获得用于信道化码的检测数据。
-
14.发明申请SIGNALING OF POWER INFORMATION FOR MIMO TRANSMISSION IN A WIRELESS COMMUNICATION SYSTEM 有权无线通信系统中用于MIMO传输的功率信息的信号公开(公告)号：US20120087271A1
公开(公告)日：2012-04-12
申请号：US13325251
申请日：2011-12-14
CPC分类号： H04W52/346 , H04B1/707 , H04B7/0426 , H04B7/0632 , H04J13/0044 , H04L1/0034 , H04W52/325 , H04W72/085 , H04W76/27 , H04W88/02 , H04W88/08
摘要： Techniques for signaling power information to facilitate channel quality indicator (CQI) reporting are described. A Node B may send power information that may be used by a UE to determine a power per channelization code, POVSF. In one design, the power information includes a power offset between the power of a data channel, PHSPDSCH, and the power of a pilot channel. The Node B may determine PHSPDSCH based on the power available for the data channel, the number of available channelization codes, and a designated number of channelization codes. The UE may determine POVSF based on the power information from the Node B and the designated number of channelization codes. The UE may estimate at least one SINR of at least one transport block based on POVSF, determine CQI information for the transport block(s) based on the SINR, and send the CQI information to the Node B.
摘要翻译： 描述用于信令功率信息以促进信道质量指示符（CQI）报告的技术。 节点B可以发送UE可以使用的功率信息来确定每个信道化码POVSF的功率。 在一种设计中，功率信息包括数据信道的功率PHSPDSCH与导频信道的功率之间的功率偏移。 节点B可以基于可用于数据信道的功率，可用信道化码的数量和指定数量的信道化码来确定PHSPDSCH。 UE可以基于来自节点B的功率信息和指定数量的信道化码来确定POVSF。 UE可以基于POVSF估计至少一个传输块的至少一个SINR，基于SINR确定传输块的CQI信息，并将CQI信息发送到节点B.
-
15.发明申请公开(公告)号：US20110286353A1
公开(公告)日：2011-11-24
申请号：US13197365
申请日：2011-08-03
IPC分类号： H04W24/00
CPC分类号： H04B7/04 , H04L1/0028 , H04W52/346 , H04W52/42
摘要： Techniques for determining and reporting channel quality indicator (CQI) information are described. A user equipment (UE) may determine a transmit power per channelization code, POVSF, based on the available transmit power and a designated number of channelization codes, e.g., by uniformly distributing the available transmit power across all transport blocks and all of the designated number of channelization codes. The UE may estimate SINRs of multiple transport blocks based on POVSF, determine CQI indices for the transport blocks based on the SINRs, and send the CQI indices to a Node B. The Node B may send multiple transport blocks to the UE based on the CQI indices. The Node B may send the transport blocks (i) with the designated number of channelization codes at POVSF or (ii) with a second number of channelization codes at POVSF, with the transport block sizes being scaled based on the designated and second numbers of channelization codes.
摘要翻译： 描述用于确定和报告信道质量指示符（CQI）信息的技术。 用户设备（UE）可以基于可用发射功率和指定数量的信道化码来确定每个信道化码POVSF的发射功率，例如通过在所有传输块上均匀分布可用的发射功率和所有指定的号码 的渠道化代码。 UE可以基于POVSF估计多个传输块的SINR，基于SINR确定传输块的CQI索引，并将CQI索引发送到节点B.节点B可以基于CQI发送多个传输块给UE 指数。 节点B可以以POVSF发送具有指定数量的信道化码的传输块（i），或者（ii）以POVSF的第二数量的信道化码发送传输块，其中传输块大小基于指定和第二数量的信道化 代码。
-
公开(公告)号：US07933599B2
公开(公告)日：2011-04-26
申请号：US11394062
申请日：2006-03-29
申请人： Ivan Jesus Fernandez-Corbaton , Jordi de los Pinos , Leonard Norman Schiff , Sherman A. Gregory
发明人： Ivan Jesus Fernandez-Corbaton , Jordi de los Pinos , Leonard Norman Schiff , Sherman A. Gregory
IPC分类号： H04W36/00
CPC分类号： H04W36/32 , H04B7/01 , H04B7/18506 , H04W16/28 , H04W52/0206 , H04W52/267 , H04W52/325 , H04W52/367 , H04W52/40 , H04W52/50 , Y02D70/164 , Y02D70/44 , Y02D70/446
摘要： Various schemes are provided that facilitate a communication handoff from a current base station to a target base station. One feature provides for reducing the search space that a base station searches by providing it with the position/location and/or velocity of an access terminal with which it attempts to communicate. Having the position and/or velocity of the access terminal, a current or target base station is able to reduce its search space (e.g., direction, frequency range, and/or time window) for the access terminal. Another feature provides for selectively and gradually increasing the power of a pilot signal originating from the access terminal during the handoff acquisition period to a target base station. By increasing the pilot signal power, the base station has a better chance of acquiring the signal and do so more quickly.
摘要翻译： 提供了有助于从当前基站到目标基站的通信切换的各种方案。 一个特征提供了通过向基站提供与其尝试通信的接入终端的位置/位置和/或速度来减少基站搜索的搜索空间。 具有接入终端的位置和/或速度，当前或目标基站能够减少接入终端的搜索空间（例如方向，频率范围和/或时间窗）。 另一个特征提供了在切换获取周期期间将源自接入终端的导频信号的功率选择性地逐渐增加到目标基站。 通过增加导频信号功率，基站有更好的获取信号的机会并且更快地进行。
-
17.发明申请公开(公告)号：US20090103497A1
公开(公告)日：2009-04-23
申请号：US11874797
申请日：2007-10-18
IPC分类号： H04B7/216
CPC分类号： H04B1/707 , H04B2201/70701
摘要： Techniques for transmitting data in a manner to support multi-user scheduling, multiple-input multiple-output (MIMO) transmission, and interference cancellation are described. A base station assigns multiple time segments of a transmission time interval (TTI) to at least one terminal, maps data for each terminal to at least one time segment assigned to the terminal, and spreads the data in each time segment with at least one channelization code used in the TTI. A terminal receives an assignment of at least one time segment from among multiple time segments of the TTI, obtains input samples for the at least one time segment, and despreads the input samples with the at least one channelization code used in the TTI.
摘要翻译： 描述了以支持多用户调度，多输入多输出（MIMO）传输和干扰消除的方式发送数据的技术。 基站向至少一个终端分配传输时间间隔（TTI）的多个时间段，将每个终端的数据映射到分配给终端的至少一个时间段，并且在每个时间段中传播具有至少一个信道化的数据 TTI中使用的代码。 终端从TTI的多个时间段中接收至少一个时间段的分配，获得至少一个时间段的输入采样，并且用TTI中使用的至少一个信道化码解扩输入的采样。
-
18.发明授权GPS satellite signal acquisition assistance system and method in a wireless communications network 有权GPS卫星信号采集辅助系统和方法在无线通信网络中公开(公告)号：US07254402B2
公开(公告)日：2007-08-07
申请号：US09910361
申请日：2001-07-20
申请人： Alkinoos Vayanos , Samir Soliman , Parag Agashe , Jeremy Stein , Peter Gaal , Ivan Jesus Fernandez-Corbaton
发明人： Alkinoos Vayanos , Samir Soliman , Parag Agashe , Jeremy Stein , Peter Gaal , Ivan Jesus Fernandez-Corbaton
IPC分类号： H04Q7/20
CPC分类号： G01S19/05 , G01S19/256 , H04B2201/70715
摘要： A system and method for assisting an integrated GPS/wireless terminal unit in acquiring one or more GPS satellite signals from the GPS satellite constellation. The invention includes a method for narrowing the PN-code phase search. That is, by accounting for the variables in geographic location and time delay relative to GPS time, the systems and methods of the present invention generate a narrow code-phase search range that enables the terminal unit to more quickly acquire and track the necessary GPS satellites, and thereby more quickly provide accurate position information to a requesting entity.
摘要翻译： 一种用于协助集成GPS /无线终端单元从GPS卫星星座获取一个或多个GPS卫星信号的系统和方法。 本发明包括一种缩小PN码相位搜索的方法。 也就是说，通过考虑相对于GPS时间的地理位置和时间延迟的变量，本发明的系统和方法产生窄的码相搜索范围，使得终端单元能够更快地获取和跟踪所需的GPS卫星 ，从而更快地向请求实体提供准确的位置信息。
-
公开(公告)号：US07184713B2
公开(公告)日：2007-02-27
申请号：US10176567
申请日：2002-06-20
IPC分类号： H04B17/00
CPC分类号： H04W28/22 , H04L1/0003 , H04L1/0009 , H04L1/0025 , H04L1/0026 , H04L1/0041 , H04L1/0045 , H04L1/0071 , H04L1/0675 , H04L1/16 , H04L1/20 , H04L25/0204 , H04L27/2626 , H04L27/2647 , H04W24/00 , H04W52/26
摘要： Techniques to determine a set of rates for a set of data streams to be transmitted in a multi-channel communication system. A group of transmission channels to be used for each data stream is initially identified. An equivalent system for each group is then defined to have an AWGN (or flat) channel and a spectral efficiency equal to the average spectral efficiency of the transmission channels in the group. A metric for each group is then derived based on the associated equivalent system, e.g., set to the SNR needed by the equivalent system to support the average spectral efficiency. A rate for each data stream is then determined based on the metric associated with the data stream. The rate is deemed to be supported by the communication system if the SNR required to support the data rate by the communication system is less than or equal to the metric.
摘要翻译： 确定要在多通道通信系统中传输的一组数据流的速率集合的技术。 最初识别要用于每个数据流的一组传输信道。 然后将每个组的等效系统定义为具有等于组中传输信道的平均频谱效率的AWGN（或平坦）信道和频谱效率。 然后基于相关联的等效系统导出每个组的度量，例如，设置为等效系统所需的SNR以支持平均频谱效率。 然后基于与数据流相关联的度量来确定每个数据流的速率。 如果由通信系统支持数据速率所需的SNR小于或等于该度量，则该速率被认为是由通信系统支持的。
-
20.发明授权Signaling of power information for MIMO transmission in a wireless communication system 有权在无线通信系统中用于MIMO传输的功率信息的信令公开(公告)号：US08837337B2
公开(公告)日：2014-09-16
申请号：US11971084
申请日：2008-01-08
CPC分类号： H04W52/346 , H04B1/707 , H04B7/0426 , H04B7/0632 , H04J13/0044 , H04L1/0034 , H04W52/325 , H04W72/085 , H04W76/27 , H04W88/02 , H04W88/08
摘要： Techniques for signaling power information to facilitate channel quality indicator (CQI) reporting are described. A Node B may send power information that may be used by a UE to determine a power per channelization code, POVSF. In one design, the power information includes a power offset between the power of a data channel, PHSPDSCH, and the power of a pilot channel. The Node B may determine PHSPDSCH based on the power available for the data channel, the number of available channelization codes, and a designated number of channelization codes. The UE may determine POVSF based on the power information from the Node B and the designated number of channelization codes. The UE may estimate at least one SINR of at least one transport block based on POVSF, determine CQI information for the transport block(s) based on the SINR, and send the CQI information to the Node B.
摘要翻译： 描述用于信令功率信息以促进信道质量指示符（CQI）报告的技术。 节点B可以发送UE可以使用的功率信息来确定每个信道化码POVSF的功率。 在一种设计中，功率信息包括数据信道的功率PHSPDSCH与导频信道的功率之间的功率偏移。 节点B可以基于可用于数据信道的功率，可用信道化码的数量和指定数量的信道化码来确定PHSPDSCH。 UE可以基于来自节点B的功率信息和指定数量的信道化码来确定POVSF。 UE可以基于POVSF估计至少一个传输块的至少一个SINR，基于SINR确定传输块的CQI信息，并将CQI信息发送到节点B.
-
-
-
-
-
-
-
-
-
搜索结果
37 条记录 (耗时 0.032 秒)