-
公开(公告)号：US20070281624A1
公开(公告)日：2007-12-06
申请号：US11767590
申请日：2007-06-25
IPC分类号： H04B17/00
CPC分类号： H04B7/0669 , H04L25/0204 , H04L27/2608
摘要： A method for communicating channel estimates on a plurality of subcarriers between a transmitting device and a receiving device. The transmitting device determines a channel estimates on a plurality of subcarriers and then encodes the channel estimates into at least one encoded channel waveform. Then the transmitting device transmits the at least one encoded channel waveform to the receiving device.
摘要翻译： 一种用于在发射设备和接收设备之间的多个子载波上传送信道估计的方法。 发送设备确定多个子载波上的信道估计，然后将信道估计编码为至少一个编码信道波形。 然后，发送设备将至少一个编码信道波形发送到接收设备。
-
32.发明授权公开(公告)号：US09450727B2
公开(公告)日：2016-09-20
申请号：US12364992
申请日：2009-02-03
申请人： Ravikiran Nory , Robert T Love , Vijay Nangia , Xiangyang Zhuang
发明人： Ravikiran Nory , Robert T Love , Vijay Nangia , Xiangyang Zhuang
CPC分类号： H04L5/0053 , H04L1/0071 , H04L1/06 , H04L1/1812 , H04L1/1854 , H04L5/0007 , H04L5/0023 , H04L5/0055 , H04W88/12
摘要： A downlink subframe on a single downlink carrier supports physical layer acknowledgment signaling for multiple physical uplink shared channel (PUSCH) transmissions. The physical layer acknowledgement signaling may take the form of physical hybrid ARQ indicator channel (PHICH) signaling. A base unit reserves resource elements groups (REGs) for default PHICH signaling of default PUSCH transmissions. The base unit reserves control channel elements (CCEs) for physical downlink control channel (PDCCH) signaling. A CCE contains multiple interleaved REGs. The base unit takes any unreserved CCEs and maps those CCEs for physical layer acknowledgement signaling of additional PUSCH transmissions.
摘要翻译： 单个下行链路载波上的下行链路子帧支持用于多个物理上行链路共享信道（PUSCH）传输的物理层确认信令。 物理层确认信令可以采取物理混合ARQ指示符信道（PHICH）信令的形式。 基站单元为缺省PUSCH传输的默认PHICH信令保留资源单元组（REG）。 基站单元保留用于物理下行链路控制信道（PDCCH）信令的控制信道单元（CCE）。 CCE包含多个交错REG。 基站单元接收任何未保留的CCE，并映射这些CCE用于附加PUSCH传输的物理层确认信令。
-
33.发明授权Method for supporting flexible frame structures in wireless communication systems 有权在无线通信系统中支持灵活框架结构的方法公开(公告)号：US09118465B2
公开(公告)日：2015-08-25
申请号：US12388727
申请日：2009-02-19
CPC分类号： H04L5/14 , H04L5/0007 , H04L5/0091 , H04L5/0094 , H04W72/121 , H04W72/1273 , H04W72/1289
摘要： A wireless communication base station is disclosed, configured to serve a plurality of user terminals in a series of downlink radio frames wherein user terminals in a first group are served in a first temporal region of the downlink radio frame and user terminals in a second group are served in the second temporal region of the downlink radio frame. A downlink radio frame contains an indicator signaling a change of duration of either of the first or second temporal region of at least one downlink radio frame in a series of downlink radio frames.
摘要翻译： 公开了一种无线通信基站，其被配置为在一系列下行链路无线电帧中服务多个用户终端，其中第一组中的用户终端在下行链路无线电帧的第一时间区域中被服务，而第二组中的用户终端是 服务于下行链路无线电帧的第二时域。 下行链路无线电帧包含指示一系列下行链路无线电帧中的至少一个下行链路无线电帧的第一或第二时间区域中的任一个的持续时间变化的指示符。
-
34.发明授权Configurable spatial channel information feedback in wireless communication system 有权无线通信系统中可配置的空间信道信息反馈公开(公告)号：US08873650B2
公开(公告)日：2014-10-28
申请号：US12577553
申请日：2009-10-12
CPC分类号： H04B7/0626 , H04B7/0639 , H04L5/0037
摘要： A method for configurable spatial channel information feedback in wireless communication systems is disclosed including receiving, at the wireless communication device, transmission from a plurality of antennas, receiving an indication of a feedback mode for feeding back spatial channel information that is based on correlations among at least some of the plurality of antennas, decomposing a correlation matrix representative of the correlations among at least some of the plurality of antennas into at least two Kronecker components, and feeding back parameters representative of the Kronecker components according to the feedback mode indicated.
摘要翻译： 公开了一种用于无线通信系统中的可配置的空间信道信息反馈的方法，包括在无线通信设备处接收来自多个天线的传输，接收用于反馈空间信道信息的反馈模式的指示，所述反馈模式基于在 所述多个天线中的至少一部分，将表示所述多个天线中的至少一些的所述相关性的相关矩阵分解为至少两个克罗内克分量，以及根据所指示的反馈模式反馈表示所述克罗内克分量的参数。
-
35.发明授权公开(公告)号：US08537911B2
公开(公告)日：2013-09-17
申请号：US13031390
申请日：2011-02-21
IPC分类号： H04K1/10
CPC分类号： H04L5/0048 , H04L5/0023 , H04L5/0035 , H04L5/0094 , H04L25/0226
摘要： A wireless communication includes a base station that configures a set of non-zero power reference signals corresponding to multiple potential transmission points to one or more users equipment UEs and configures at least one zero-power reference signal, with zero transmission power from one or more of the multiple transmission points. The base station transmits configuration information to at least one UE of the one more UEs, wherein the configuration information corresponds to a set of resource elements that are associated with a set of channel state information reference signals and wherein the set of channel state information reference signals include the set of nonzero-power reference signals and the at least one zero-power reference signal. The UE then performs a channel measurement based on one or more non-zero-power reference signals of the set of non-zero-power reference signals and performs an interference measurement based on the at least one zero-power reference signal.
摘要翻译： 无线通信包括：基站，其将与多个潜在传输点相对应的一组非零功率参考信号配置到一个或多个用户设备UE，并且配置至少一个零功率参考信号，其中零个发射功率来自一个或多个 的多个传输点。 基站向多个UE的至少一个UE发送配置信息，其中配置信息对应于与一组信道状态信息参考信号相关联的一组资源元素，并且其中信道状态信息参考信号 包括一组非零功率参考信号和至少一个零功率参考信号。 然后，UE基于一组非零功率参考信号的一个或多个非零功率参考信号执行信道测量，并且基于至少一个零功率参考信号执行干扰测量。
-
公开(公告)号：US08520572B2
公开(公告)日：2013-08-27
申请号：US13093345
申请日：2011-04-25
IPC分类号： H04B7/00
CPC分类号： H04L5/0064 , H04L1/0025 , H04L1/0073 , H04L1/1671 , H04L5/0023 , H04L5/0044 , H04L5/0053 , H04L5/0092 , H04L25/03343 , H04L27/0008 , H04L2025/03414 , H04L2025/03426
摘要： The present disclosure relates to resource allocation in multi-layer transmissions in transmissions of user data and control information. A wireless terminal allocates resources in a multi-layer transmission for one more types of control information based on scheduling information and control allocation parameters. The multi-layer transmission includes control information and one or more user data streams that are mapped to multiple transmission layers and transmitted by the wireless terminal.
摘要翻译： 本公开涉及在用户数据和控制信息的传输中的多层传输中的资源分配。 无线终端基于调度信息和控制分配参数，在多层传输中为一种以上类型的控制信息分配资源。 多层传输包括映射到多个传输层并由无线终端传输的控制信息和一个或多个用户数据流。
-
37.发明授权Channel estimator with high noise suppression and low interpolation error for OFDM systems 有权OFDM系统具有高噪声抑制和低内插误差的信道估计器公开(公告)号：US08406319B2
公开(公告)日：2013-03-26
申请号：US11691494
申请日：2007-03-27
IPC分类号： H04K1/10
CPC分类号： H04L27/2647 , H04L25/022 , H04L25/0228 , H04L25/025
摘要： A receiver with DFT based channel estimation having good noise suppression for both high and low signal-to-noise ratios providing advantages over conventional DFT estimators and Minimum-Mean-Square-Error (MMSE) estimators. The use of MMSE may be incorporated for estimation at the band edges providing further improvements. The received signal in the time domain, is transformed to the frequency-domain received signal via an N-point FFT (501). The frequency-domain received signal at the pilot locations is then used to obtain a “noisy” channel estimates at the pilot subcarriers by dividing the known pilot symbols in (503). Uniformly spaced pilots are assumed over a window of usable subcarriers. Padding is applied to the initial channel estimates at both sides of the band to account for unused subcarriers such as guard spacing. Weighting factors during power estimation may take into account various noise characteristics such as combinations of known and time-limited noise power characteristics.
摘要翻译： 具有基于DFT的信道估计的接收机对于高和低信噪比具有良好的噪声抑制，提供优于常规DFT估计器和最小均方误差（MMSE）估计器的优点。 可以并入MMSE的使用以便在带边缘进行估计，从而提供进一步的改进。 时域中的接收信号通过N点FFT被转换成频域接收信号（501）。 导频位置处的频域接收信号然后用于通过划分（503）中的已知导频符号来在导频子载波处获得噪声信道估计。 在可用子载波的窗口上假设均匀间隔的导频。 填充应用于频带两侧的初始信道估计，以解决未使用的子载波，例如保护间隔。 功率估计期间的加权因子可以考虑各种噪声特性，例如已知和时间有限的噪声功率特性的组合。
-
公开(公告)号：US08374197B2
公开(公告)日：2013-02-12
申请号：US13295754
申请日：2011-11-14
CPC分类号： H04W72/0413 , H04B7/0417 , H04B7/0617 , H04L1/0003 , H04L1/0025 , H04L1/0028 , H04L1/0035 , H04L1/06 , H04L1/1812 , H04W88/02 , H04W88/08
摘要： A method for link adaptation at a base station using metric feedback is disclosed. The method can include the steps of communicating with a mobile station over a communication link having one or more sub-channels and during the communication, receiving from the mobile station a plurality of mutual information per coded bit metrics for a plurality of candidate modulation types per coding layer. The mutual information per coded bit metrics can be based on channel state knowledge of the sub-channels. Also, based on the received information, the operational performance of the mobile station can be predicted in view of one or more transmission parameters and performance factors and one or more of the transmission parameters, including a modulation type selected from one of the plurality of candidate modulation types per coding layer, can be selected based on a transmission condition of the communication link.
摘要翻译： 公开了一种使用度量反馈在基站上进行链路自适应的方法。 该方法可以包括以下步骤：通过具有一个或多个子信道的通信链路与移动站进行通信，并且在通信期间，从移动站接收针对多个候选调制类型的每个编码比特度量的多个互信息 编码层。 每个编码比特度量的互信息可以基于子信道的信道状态知识。 另外，基于接收到的信息，可以考虑到一个或多个传输参数和性能因素以及一个或多个传输参数来预测移动站的操作性能，所述传输参数包括从多个候选中的一个中选择的调制类型 可以基于通信链路的发送条件来选择每个编码层的调制类型。
-
39.发明授权Method of signaling particular types of resource elements in a wireless communication system 有权在无线通信系统中发送特定类型的资源元素的方法公开(公告)号：US08208434B2
公开(公告)日：2012-06-26
申请号：US12431305
申请日：2009-04-28
IPC分类号： H04W4/00
CPC分类号： H04L5/0035 , H04B7/024 , H04B7/0413 , H04L5/0023 , H04L5/0032 , H04L5/0037 , H04L5/0048 , H04L5/006 , H04L5/0094 , H04L5/16 , H04L25/0204 , H04L25/0226 , H04L25/0242
摘要： A method of signaling particular types of resource elements in a wireless communication system is disclosed. The method can include, at a wireless terminal, receiving (610) a message providing information of a set of allocated resource elements carrying data intended for the wireless terminal. The method can include receiving (620) an indication corresponding to a resource element of a particular type within the set of allocated resource elements. The method can include decoding (630) resource elements that carry data intended for the wireless terminal based on the message providing information and based on the indication.
摘要翻译： 公开了一种在无线通信系统中发送特定类型的资源元素的方法。 该方法可以包括在无线终端处接收（610）提供携带针对无线终端的数据的分配的资源元素的集合的信息的消息。 该方法可以包括：在所分配的资源元素集合内接收（620）对应于特定类型的资源元素的指示。 该方法可以包括基于消息提供信息并且基于该指示来解码（630）携带针对无线终端的数据的资源元素。
-
40.发明授权Apparatus and method for communicating and processing a reference signal based on an identifier associated with a base station 有权用于基于与基站相关联的标识符来传送和处理参考信号的装置和方法公开(公告)号：US08165586B2
公开(公告)日：2012-04-24
申请号：US13040090
申请日：2011-03-03
申请人： Sandeep H. Krishnamurthy , Robert T. Love , Ajit Nimbalker , Kenneth A. Stewart , Xiangyang Zhuang
发明人： Sandeep H. Krishnamurthy , Robert T. Love , Ajit Nimbalker , Kenneth A. Stewart , Xiangyang Zhuang
IPC分类号： H04B7/212
CPC分类号： H04L5/0053 , H04L5/0007 , H04L5/0091
摘要： A base station, which includes a processor and a transmitter, communicates a reference signal to wireless communication devices in a wireless communication system. The processor encodes the reference signal into a first set of transmission resources, encodes other information into a second set of transmission resources, and multiplexes the two sets of transmission resources into a subframe, such that the first set of transmission resources is multiplexed into at least a portion of a first set of orthogonal frequency division multiplexed (OFDM) symbols based on an identifier associated with the base station and the second set of transmission resources is multiplexed into a second set of OFDM symbols. The transmitter transmits the subframe to the wireless devices. According to one embodiment, transmission resources for carrying the reference signal may be allocated according to a predetermined allocation, a semi-static allocation, a dynamic allocation, and/or an allocation based on higher layer signaling.
摘要翻译： 包括处理器和发射机的基站将参考信号传送到无线通信系统中的无线通信设备。 处理器将参考信号编码为第一组传输资源，将其他信息编码为第二组传输资源，并将两组传输资源复用为子帧，使得第一组传输资源至少被多路复用 基于与基站和第二组传输资源相关联的标识符的第一组正交频分复用（OFDM）符号的一部分被多路复用到第二组OFDM符号中。 发射机将子帧发送到无线设备。 根据一个实施例，可以根据预定分配，半静态分配，动态分配和/或基于较高层信令的分配来分配用于承载参考信号的传输资源。
-
-
-
-
-
-
-
-
-
搜索结果
108 条记录 (耗时 0.036 秒)