公开(公告)号：US20130201912A1

公开(公告)日：2013-08-08

申请号：US13698927

申请日：2011-05-18

申请人： Hongsan Sheng ,  Yingxue K. Li ,  Philip J. Pietraski ,  Carl Wang ,  Ron Porat

发明人： Hongsan Sheng ,  Yingxue K. Li ,  Philip J. Pietraski ,  Carl Wang ,  Ron Porat

IPC分类号： H04W28/20

CPC分类号： H04W28/20 ,  H04B7/0413 ,  H04B7/0626 ,  H04B7/0634 ,  H04B7/065 ,  H04B7/0663

摘要： Methods and apparatus are described for compressing channel state information (CSI) in time-domain based on path location information for CSI feedback. Downlink (DL) CSI is compressed in the time domain and fed back by not sending the multipath location information, or sending at a very low rate. In one method, a wireless transmit/receive unit (WTRU) selects the strongest multipath components based on channel characteristics. The multipath components are quantized in the time domain via direct or vector based quantization. The base station reconstructs a channel impulse response from the fed back quantized multipath components and applies same to precoding processing. In another method, the WTRU feeds back information associated with a narrowband portion(s) of a system spectrum. The selected narrowband portion(s) have sufficient density over time to allow good precoding per subband or across the system spectrum. Short term feedback may be augmented with long term channel information.

摘要翻译： 描述了用于基于CSI反馈的路径位置信息在时域中压缩信道状态信息（CSI）的方法和装置。 下行链路（DL）CSI在时域中被压缩，并且通过不发送多路径位置信息或以非常低的速率发送来反馈。 在一种方法中，无线发射/接收单元（WTRU）基于信道特性选择最强的多径分量。 多径分量通过直接或矢量量化在时域中量化。 基站从反馈量化多路径分量重构信道脉冲响应，并将其应用于预编码处理。 在另一种方法中，WTRU反馈与系统频谱的窄带部分相关联的信息。 所选择的窄带部分随着时间具有足够的密度，以允许每个子带或跨系统频谱的良好预编码。 短期反馈可能会增加长期渠道信息。

公开(公告)号：US20130153298A1

公开(公告)日：2013-06-20

申请号：US13577549

申请日：2010-02-19

申请人： Philip J. Pietraski ,  Rui Yang ,  Kai Li ,  Carl Wang ,  Tao Deng ,  Samian Kaur ,  Erdem Bala ,  Ravikumar V. Pragada

发明人： Philip J. Pietraski ,  Rui Yang ,  Kai Li ,  Carl Wang ,  Tao Deng ,  Samian Kaur ,  Erdem Bala ,  Ravikumar V. Pragada

IPC分类号： E21B47/022 ,  E21B7/04

CPC分类号： H04W52/346 ,  E21B7/04 ,  E21B47/022 ,  H04L5/001 ,  H04L5/0035 ,  H04L5/0062 ,  H04L5/0073 ,  H04W16/08 ,  H04W24/08 ,  H04W36/0069 ,  H04W36/0083 ,  H04W52/143 ,  H04W52/242 ,  H04W52/283 ,  H04W52/325 ,  H04W52/34 ,  H04W52/343 ,  H04W52/40 ,  H04W72/0413

摘要： A wireless communication network and method are described for enhancing cell-edge performance of a wireless transmit/receive unit (WTRU). The WTRU may establish a connection with a plurality of sites via respective downlinks (DLs). Each DL may include at least one DL component carrier (CC) that operates on a frequency that is the same or different than one or more of the other CCs. The sites may manipulate their transmit power for a particular CC operating frequency such that the distance from a particular one of the sites to its cell boundary may become larger by increasing its transmit power on the particular frequency, and the distance from at least one of the other sites to its respective cell boundary may become smaller by decreasing its transmit power on the particular frequency. Thus, a coverage overlap between different CC frequencies may be created while maintaining a frequency reuse pattern of one.

摘要翻译： 描述了一种用于增强无线发射/接收单元（WTRU）的小区边缘性能的无线通信网络和方法。 WTRU可以经由相应的下行链路（DL）建立与多个站点的连接。 每个DL可以包括在与其他CC中的一个或多个相同或不同的频率上操作的至少一个DL分量载波（CC）。 站点可以操纵其针对特定CC工作频率的其发射功率，使得通过增加其在特定频率上的发射功率，从特定的站点到其小区边界的距离可能变大，并且距离 通过减小其在特定频率上的发射功率，其各个小区边界的其他站点可能变小。 因此，可以在维持一个频率重用模式的同时创建不同CC频率之间的覆盖重叠。

公开(公告)号：US08356229B2

公开(公告)日：2013-01-15

申请号：US13437498

申请日：2012-04-02

申请人： Philip J. Pietraski ,  Yongwen Yang

发明人： Philip J. Pietraski ,  Yongwen Yang

IPC分类号： H03M13/00

CPC分类号： H04L1/0061 ,  G06F11/1004 ,  H03M13/09 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0072 ,  H04L1/0083 ,  H04L1/1812

摘要： A method and apparatus for encoding and decoding high speed shared control channel (HS-SCCH) data are disclosed. For part 1 data encoding, a mask may be generated using a wireless transmit/receive unit (WTRU) identity (ID) and a generator matrix with a maximum minimum Hamming distance. For part 2 data encoding, cyclic redundancy check (CRC) bits are generated based on part 1 data and part 2 data. The number of CRC bits is less than the WTRU ID. The CRC bits and/or the part 2 data are masked with a mask. The mask may be a WTRU ID or a punctured WTRU ID of length equal to the CRC bits. The mask may be generated using the WTRU ID and a generator matrix with a maximum minimum Hamming distance. The masking may be performed after encoding or rate matching.

公开(公告)号：US08315320B2

公开(公告)日：2012-11-20

申请号：US12630562

申请日：2009-12-03

申请人： Guodong Zhang ,  Erdem Bala ,  Philip J. Pietraski ,  Sung-Hyuk Shin ,  Kyle Jung-Lin Pan ,  Joseph S. Levy ,  Jin Wang ,  Peter S. Wang ,  Janet A. Stern-Berkowitz ,  John W. Haim

发明人： Guodong Zhang ,  Erdem Bala ,  Philip J. Pietraski ,  Sung-Hyuk Shin ,  Kyle Jung-Lin Pan ,  Joseph S. Levy ,  Jin Wang ,  Peter S. Wang ,  Janet A. Stern-Berkowitz ,  John W. Haim

IPC分类号： H04L27/28

CPC分类号： H04W52/365 ,  H04W52/146 ,  H04W52/242 ,  H04W52/346 ,  H04W72/0453 ,  H04W72/1284

摘要： A method for reporting power headroom is disclosed. Power headroom may be reported across all carriers (wideband), for a specific carrier, or for a carrier group. The formula used to calculate the power headroom depends on whether the carrier (or a carrier in the carrier group) has a valid uplink grant. If the carrier or carrier group does not have a valid uplink grant, the power headroom may be calculated based on a reference grant. The power headroom is calculated by a wireless transmit/receive unit and is reported to an eNodeB.

摘要翻译： 公开了一种用于报告功率余量的方法。 功率余量可以跨所有载波（宽带），特定载波或载波组报告。 用于计算功率余量的公式取决于载波（或载波组中的载波）是否具有有效的上行链路授权。 如果载波或载波组没有有效的上行链路许可，则可以基于参考许可来计算功率余量。 功率余量由无线发射/接收单元计算，并报告给eNodeB。

公开(公告)号：US20120275540A1

公开(公告)日：2012-11-01

申请号：US13544450

申请日：2012-07-09

申请人： Fatih M. Ozluturk ,  Philip J. Pietraski ,  Aykut Bultan

发明人： Fatih M. Ozluturk ,  Philip J. Pietraski ,  Aykut Bultan

IPC分类号： H04B7/06

CPC分类号： H04W52/262 ,  H04B7/046 ,  H04L1/0003 ,  H04L1/0009 ,  H04L5/0023 ,  H04L5/0025 ,  H04L5/0046 ,  H04L5/006 ,  H04L25/0206 ,  H04W52/42

摘要： A method and apparatus for radio resources control in a multiple input multiple output (MIMO) orthogonal frequency division multiplexing (OFDM) communication system are disclosed. A channel metric is calculated for each of a plurality of transmit antennas. Sub-carriers are allocated to each transmit antenna in accordance with the channel metric of each transmit antenna. Signals are transmitted using the allocated sub-carriers at each antenna. Adaptive modulation and coding and transmit power control of each sub-carrier may be further implemented in accordance with the channel metric. Power control may be implemented per antenna basis or per sub-carrier basis. In performing power control, a subset of transmit antennas may be selected and waterpouring may be applied only to the selected antennas. Waterpouring may be based on SNR instead of channel response.

摘要翻译： 公开了一种用于多输入多输出（MIMO）正交频分复用（OFDM）通信系统中的无线资源控制的方法和装置。 为多个发射天线中的每一个计算信道度量。 根据每个发射天线的信道度量，将子载波分配给每个发射天线。 在每个天线处使用分配的子载波来发送信号。 可以根据信道度量进一步实现每个子载波的自适应调制和编码和发射功率控制。 功率控制可以基于每个天线或每个子载波来实现。 在执行功率控制时，可以选择发射天线的子集，并且可以仅对所选择的天线进行浇水。 灌水可以基于SNR而不是通道响应。

公开(公告)号：US08270512B2

公开(公告)日：2012-09-18

申请号：US11082286

申请日：2005-03-17

申请人： Fatih Ozluturk ,  Philip J. Pietraski ,  Aykut Bultan

发明人： Fatih Ozluturk ,  Philip J. Pietraski ,  Aykut Bultan

IPC分类号： H04B7/02

CPC分类号： H04W52/262 ,  H04B7/046 ,  H04L1/0003 ,  H04L1/0009 ,  H04L5/0023 ,  H04L5/0025 ,  H04L5/0046 ,  H04L5/006 ,  H04L25/0206 ,  H04W52/42

摘要： A method and apparatus for radio resources control in a multiple input multiple output (MIMO) orthogonal frequency division multiplexing (OFDM) communication system are disclosed. Channel metric is calculated for each of a plurality of transmit antennas. Sub-carriers are allocated to each transmit antenna in accordance with the channel metric of each transmit antenna. Signals are transmitted using the allocated sub-carriers at each antenna. Adaptive modulation and coding and transmit power control of each sub-carrier may be further implemented in accordance with the channel metric. Power control may be implemented per antenna basis or per sub-carrier basis. In performing power control, a subset of transmit antennas may be selected and waterpouring may be applied only to the selected antennas. Waterpouring may be based on SNR instead of channel response.

摘要翻译： 公开了一种用于多输入多输出（MIMO）正交频分复用（OFDM）通信系统中的无线资源控制的方法和装置。 为多个发射天线中的每一个计算信道度量。 根据每个发射天线的信道度量，将子载波分配给每个发射天线。 在每个天线处使用分配的子载波来发送信号。 可以根据信道度量进一步实现每个子载波的自适应调制和编码和发射功率控制。 功率控制可以基于每个天线或每个子载波来实现。 在执行功率控制时，可以选择发射天线的子集，并且可以仅对所选择的天线进行浇水。 灌水可以基于SNR而不是通道响应。

公开(公告)号：US08249133B2

公开(公告)日：2012-08-21

申请号：US12571880

申请日：2009-10-01

申请人： Philip J. Pietraski ,  Alpaslan Demir ,  Donald M. Grieco

发明人： Philip J. Pietraski ,  Alpaslan Demir ,  Donald M. Grieco

IPC分类号： H04B1/00

CPC分类号： H04B1/70735 ,  H04B1/70755 ,  H04B1/7083 ,  H04B1/709 ,  H04B1/7103 ,  H04B2201/70707

摘要： A wireless transmit receive unit (WTRU) provides facilitation of cell search. In one embodiment, received samples are split into a plurality of sample sets for processing. Each of the sets is processed and an accumulated result is divided by an estimated noise value. In another embodiment, a code correlator correlates the received signal with a primary synchronization code and an auxiliary code correlator having a same length as the code correlator correlates the received signal with a code having a low cross correlation with the primary synchronization code. In another embodiment, a division of an accumulated result with a noise estimate is performed using indexes of the most significant bits.

摘要翻译： 无线发射接收单元（WTRU）提供小区搜索的便利。 在一个实施例中，将接收到的样本分成多个样本集进行处理。 处理每个集合，并将累积结果除以估计的噪声值。 在另一个实施例中，码相关器将接收的信号与主同步码相关，并且与码相关器具有相同长度的辅助码相关器将接收的信号与与主同步码具有低互相关的代码相关。 在另一个实施例中，使用最高有效位的索引来执行累积结果与噪声估计的分割。

公开(公告)号：US08213493B2

公开(公告)日：2012-07-03

申请号：US12415023

申请日：2009-03-31

申请人： Jung-Lin Pan ,  Mihaela C. Beluri ,  Philip J. Pietraski

发明人： Jung-Lin Pan ,  Mihaela C. Beluri ,  Philip J. Pietraski

IPC分类号： H03H7/30

CPC分类号： H04L25/03038 ,  H04B1/712 ,  H04B2201/70701 ,  H04L25/03044 ,  H04L2025/03375 ,  H04L2025/03477 ,  H04L2025/03617

摘要： A normalized least means square (NLMS) equalizer including two equalizer filters is disclosed. In one embodiment, a single correction term generator is used to generate correction terms for tap coefficient updates of each of the equalizer filters based on a pilot signal. In another embodiment, two different correction term generators are used to generate correction terms for each of the equalizer filters, whereby one of the correction term generators uses data received from a hard decision unit at the output of one of the equalizer filters to generate correction terms for both of the equalizer filters.

摘要翻译： 公开了包括两个均衡器滤波器的归一化最小均方（NLMS）均衡器。 在一个实施例中，单个校正项生成器用于基于导频信号产生每个均衡器滤波器的抽头系数更新的校正项。 在另一个实施例中，使用两个不同的校正项发生器来产生每个均衡器滤波器的校正项，由此校正项发生器之一使用在均衡器滤波器之一的输出处从硬判决单元接收的数据来产生校正项 两个均衡器滤波器。

公开(公告)号：US08151164B2

公开(公告)日：2012-04-03

申请号：US13227214

申请日：2011-09-07

申请人： Philip J. Pietraski ,  Yongwen Yang

发明人： Philip J. Pietraski ,  Yongwen Yang

IPC分类号： H03M13/00

CPC分类号： H04L1/0061 ,  G06F11/1004 ,  H03M13/09 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0072 ,  H04L1/0083 ,  H04L1/1812

摘要： A method and apparatus for encoding and decoding high speed shared control channel (HS-SCCH) data are disclosed. For part 1 data encoding, a mask may be generated using a wireless transmit/receive unit (WTRU) identity (ID) and a generator matrix with a maximum minimum Hamming distance. For part 2 data encoding, cyclic redundancy check (CRC) bits are generated based on part 1 data and part 2 data. The number of CRC bits is less than the WTRU ID. The CRC bits and/or the part 2 data are masked with a mask. The mask may be a WTRU ID or a punctured WTRU ID of length equal to the CRC bits. The mask may be generated using the WTRU ID and a generator matrix with a maximum minimum Hamming distance. The masking may be performed after encoding or rate matching.

摘要翻译： 公开了一种用于编码和解码高速共享控制信道（HS-SCCH）数据的方法和装置。 对于部分1数据编码，可以使用无线发射/接收单元（WTRU）身份（ID）和具有最大最小汉明距离的发生器矩阵来生成掩码。 对于第2部分数据编码，基于第1部分数据和第2部分数据生成循环冗余校验（CRC）位。 CRC比特数小于WTRU ID。 CRC掩码和/或第2部分数据被掩码。 该掩码可以是长度等于CRC比特的WTRU ID或打孔的WTRU ID。 可以使用WTRU ID和具有最大最小汉明距离的发生器矩阵来生成掩码。 可以在编码或速率匹配之后执行掩蔽。

公开(公告)号：US08126013B2

公开(公告)日：2012-02-28

申请号：US12056433

申请日：2008-03-27

申请人： Marian Rudolf ,  Behrouz Aghili ,  Prabhakar R. Chitrapu ,  Stephen G. Dick ,  Philip J. Pietraski ,  Yan Li

发明人： Marian Rudolf ,  Behrouz Aghili ,  Prabhakar R. Chitrapu ,  Stephen G. Dick ,  Philip J. Pietraski ,  Yan Li

IPC分类号： H04J3/24 ,  H04J3/18 ,  H04J3/16 ,  H04L12/42

CPC分类号： H04W28/06 ,  H04L1/0041 ,  H04L1/0057 ,  H04L1/0068 ,  H04L1/0073 ,  H04L1/1664 ,  H04L2001/125

摘要： A method and apparatus for indicating a temporary block flow (TBF) to which a piggybacked acknowledgement/non-acknowledgement (PAN) field is addressed. A PAN check sequence (PCS) is created, for example using a cyclic redundancy check (CRC) encoding. The PCS is masked with a temporary flow identity (TFI) assigned to a TBF or a mask generated based on the TFI. A data block including the PAN field and the masked PCS is then processed for transmission. The mask may be generated by converting the TFI using an (M, N) code, M being not greater than the number of bits of the PCS and N being the number of bits of the TFI. With this scheme, a TFI may be transmitted in a PAN field without using explicit bits to identify the TBF.

摘要翻译： 用于指示捎带的确认/非确认（PAN）字段被寻址到的临时块流（TBF）的方法和装置。 创建PAN检查序列（PCS），例如使用循环冗余校验（CRC）编码。 PCS被临时流标识（TFI）屏蔽，分配给TBF或基于TFI生成的掩码。 然后处理包括PAN字段和屏蔽的PCS的数据块以进行传输。 掩模可以通过使用（M，N）码转换TFI来生成，M不大于PCS的比特数，N是TFI的比特数。 使用该方案，可以在PAN字段中传输TFI，而不使用显式位来识别TBF。