公开(公告)号：US08107441B2

公开(公告)日：2012-01-31

申请号：US10961611

申请日：2004-10-08

申请人： Joseph P. Odenwalder ,  Yongbin Wei ,  Edward G. Tiedemann, Jr. ,  Stein A. Lundby ,  David Puig-Oses ,  Sandip Sarkar

发明人： Joseph P. Odenwalder ,  Yongbin Wei ,  Edward G. Tiedemann, Jr. ,  Stein A. Lundby ,  David Puig-Oses ,  Sandip Sarkar

IPC分类号： H04B7/216

CPC分类号： H04W28/18 ,  H04L1/0038 ,  H04L1/004 ,  H04L1/0059 ,  H04L1/0061 ,  H04L1/0068 ,  H04L1/0071 ,  H04L1/08 ,  H04L1/1607 ,  H04W72/1252 ,  H04W74/04

摘要： Systems and techniques for communications wherein a data packet is transmitted over at least one time slot from a transmission site, a value is computed from an initial value and information, the initial value being a function of the number of time slots of the data packet transmission, the value and the information is transmitted from the transmission site, the transmitted value and the information is received at a receiving site, the value from the received information is recalculated, and the number of time slots of the data packet transmission is determined from the calculated and recalculated values.

摘要翻译： 用于通信的系统和技术，其中通过至少一个时隙从传输站点发送数据分组，从初始值和信息计算值，初始值是数据分组传输的时隙数量的函数 ，从发送站点发送该值和信息，在接收站点接收发送的值和信息，重新计算来自接收到的信息的值，并根据该数据包发送的时隙数确定 计算和重新计算的值。

公开(公告)号：US20120021753A1

公开(公告)日：2012-01-26

申请号：US13007955

申请日：2011-01-17

申请人： Aleksandar Damnjanovic ,  Yongbin Wei ,  Madhavan Srinivasan Vajapeyam ,  Durga Prasad Malladi

发明人： Aleksandar Damnjanovic ,  Yongbin Wei ,  Madhavan Srinivasan Vajapeyam ,  Durga Prasad Malladi

IPC分类号： H04W72/04

CPC分类号： H04W72/082 ,  H04W16/10 ,  H04W72/1231 ,  H04W72/1289

摘要： Systems and methods for facilitating inter-cell interference coordination using resource partitioning are described. A UE may receive or determine information related to received interference and/or future scheduling. The information may be communicated to a serving base station, which may use the information to allocate uplink or downlink resources between cells. The uplink and/or downlink resource may be partitioned in subbands to mitigate interference from adjacent network nodes. The eNBs may communicate, such as directly, via a backhaul connection, and/or between UEs to configure interference coordination and signaling.

摘要翻译： 描述了使用资​​源划分促进小区间干扰协调的系统和方法。 UE可以接收或确定与所接收的干扰有关的信息和/或将来的调度。 该信息可以被传送到服务基站，服务基站可以使用信息来在小区之间分配上行链路或下行链路资源。 可以在子带中划分上行链路和/或下行链路资源以减轻来自相邻网络节点的干扰。 eNB可以例如通过回程连接和/或在UE之间直接进行通信，以配置干扰协调和信令。

公开(公告)号：US20110280294A1

公开(公告)日：2011-11-17

申请号：US12778861

申请日：2010-05-12

申请人： Tao Luo ,  Yongbin Wei ,  Byoung-Hoon Kim

发明人： Tao Luo ,  Yongbin Wei ,  Byoung-Hoon Kim

IPC分类号： H04B17/00

CPC分类号： H04L25/0228 ,  H04L25/0204 ,  H04L25/0212 ,  H04L25/022

摘要： Methods and systems are disclosed for channel estimation and frequency tracking in mobile communication systems. Particularly, various ways of using the time domain impulse channel response based on the staggered frequency domain pilot tones are presented that enable rapid frequency error estimation and frequency tracking control. A mathematical model is developed that provides a convenient metric for evaluating tolerable frequency error, as well as modes for switching between CIR-based and SSC-based frequency tracking.

摘要翻译： 公开了用于移动通信系统中的信道估计和频率跟踪的方法和系统。 特别地，提出了使用基于交错频域导频音的时域脉冲信道响应的各种方式，其能够进行快速频率误差估计和频率跟踪控制。 开发了一种数学模型，为评估可容忍的频率误差提供了便利的度量，以及在基于CIR和基于SSC的频率跟踪之间切换的模式。

公开(公告)号：US20110274060A1

公开(公告)日：2011-11-10

申请号：US13100119

申请日：2011-05-03

申请人： Tao Luo ,  Yongbin Wei ,  Durga Prasad Malladi

发明人： Tao Luo ,  Yongbin Wei ,  Durga Prasad Malladi

IPC分类号： H04W72/04

CPC分类号： H04L5/0094 ,  H04L5/0044 ,  H04L5/0062 ,  H04L5/0073 ,  H04W72/042 ,  H04W84/045

摘要： In release 8 of the LTE standard (“Rel-8”), a control channel and its associated data channel for downlink may be found in the same subframe. However, decoding of the control channel may be difficult if there is strong interference from different cells (e.g., due to interference from strong/dominant interfering cells). Communication in a dominant interference scenario may be supported by performing inter-cell interference coordination (ICIC). For example, cells may partition subframes to avoid interference. For some embodiments, allocating resources for a downlink data channel on one subframe may come from a PDCCH on a different subframe, which can be referred to as a cross-subframe assignment. Certain aspects of the present disclosure provide subframe-specific search spaces that may be used when there is at least one cross-subframe assignment in a subframe.

摘要翻译： 在LTE标准（“Rel-8”）的版本8中，可以在同一子帧中找到用于下行链路的控制信道及其相关联的数据信道。 然而，如果存在来自不同小区的强干扰（例如，由于来自强/优势干扰小区的干扰），则控制信道的解码可能是困难的。 可以通过执行小区间干扰协调（ICIC）来支持主要干扰场景中的通信。 例如，单元可以分割子帧以避免干扰。 对于一些实施例，在一个子帧上为下行链路数据信道分配资源可以来自不同子帧上的PDCCH，其可以被称为跨子帧分配。 本公开的某些方面提供了子帧专用的搜索空间，其可以在子帧中存在至少一个跨子帧分配时使用。

公开(公告)号：US20110249548A1

公开(公告)日：2011-10-13

申请号：US12755998

申请日：2010-04-07

申请人： Peter Gaal ,  Robert J. Fuchs ,  Yongbin Wei ,  Ke Liu ,  Hanfang Pan ,  Durga Prasad Malladi ,  Daniel T. Macek

发明人： Peter Gaal ,  Robert J. Fuchs ,  Yongbin Wei ,  Ke Liu ,  Hanfang Pan ,  Durga Prasad Malladi ,  Daniel T. Macek

IPC分类号： H04J11/00 ,  H04L27/28

CPC分类号： H04J13/0059 ,  H04J13/14

摘要： Efficient apparatus and method for Zadoff-Chu (“Chu”) sequence generation avoids additional processing and hardware complexity of conventional quadratic generating formula followed by Discrete Fourier Transform (DFT) with a reference signal generator that produces both a Zadoff-Chu sequence and its DFT. In the wireless communication system (e.g., Long Term Evolution (LTE) system), Chu sequences are extensively used, especially in the uplink (UL). Because of the single carrier operating mode, transmitting a Chu sequence in principle involves a succession of generating that sequence, performing a DFT operation and then an IFFT operation. Assuming that the sequence length is N, the initial sequence generation requires 2N multiplications and the DFT requires more than N log 2(N) multiplications. Given the frequent processing of Chu sequences, this would represent a complexity burden. The invention makes it possible to perform the sequence generation and DFT steps without any multiplication operation, except for possibly calculating certain initial parameters.

摘要翻译： 用于Zadoff-Chu（“Chu”）序列生成的高效装置和方法避免了传统二次生成公式的附加处理和硬件复杂性，随后是具有产生Zadoff-Chu序列及其DFT的参考信号发生器的离散傅里叶变换（DFT） 。 在无线通信系统（例如，长期演进（Long Term Evolution，LTE）系统）中，尤其在上行链路（UL）中广泛使用了Chu序列。 由于单载波操作模式，原则上发送Chu序列涉及一系列生成该序列，执行DFT操作，然后进行IFFT操作。 假设序列长度为N，则初始序列生成需要2N次乘法，并且DFT需要多于N个log 2（N）乘法。 鉴于Chu序列的频繁处理，这将代表一个复杂的负担。 除了可能计算某些初始参数之外，本发明使得可以执行没有任何乘法运算的序列生成和DFT步骤。

公开(公告)号：US20110228883A1

公开(公告)日：2011-09-22

申请号：US12878906

申请日：2010-09-09

申请人： Ke Liu ,  Kibeom Seong ,  Tao Luo ,  Yongbin Wei

发明人： Ke Liu ,  Kibeom Seong ,  Tao Luo ,  Yongbin Wei

IPC分类号： H04L27/06

CPC分类号： H04L1/0045 ,  H04L1/08

摘要： Decision metrics used to decode wireless communication payloads are combined for successive frames to improve decoding of the later received frames. A bitwise payload difference between successive frames is encoded in the same manner the payloads are encoded. Decision metrics determined for the earlier received frame are combined with the encoded payload difference to generate adjusted decision metrics. The adjusted decision metrics are combined with decision metrics determined for the later received frame. The combined decision metrics are decoded to generate a payload for the later received frame. If the decoding is not successful the combined decision metrics are carried forward and the process is repeated based on the payload difference between the following frames.

摘要翻译： 用于解码无线通信有效载荷的决策度量被组合用于连续的帧，以改进后续接收的帧的解码。 连续帧之间的按位有效负载差异以有效载荷编码的相同方式进行编码。 将针对较早接收到的帧确定的决策度量与经编码的有效载荷差值组合以产生经调整的决策度量。 经调整的决策度量与为稍后接收的帧确定的决策度量相结合。 对组合决策度量进行解码，以生成稍后接收的帧的有效载荷。 如果解码不成功，则组合决策度量被转发，并且基于以下帧之间的有效负载差重复该过程。

公开(公告)号：US20110064037A1

公开(公告)日：2011-03-17

申请号：US12879731

申请日：2010-09-10

申请人： Yongbin Wei ,  Durga Prasad Malladi ,  Tao Luo

发明人： Yongbin Wei ,  Durga Prasad Malladi ,  Tao Luo

IPC分类号： H04W72/04

CPC分类号： H04W72/1289 ,  H04L5/0035 ,  H04W72/042 ,  H04W72/1273

摘要： Certain aspects of the disclosure relate to performing cross-subframe control channel signaling for wireless communications. A method may be provided for signaling downlink control channel resource allocations and/or physical control format indications in a subframe different from the subframe in which a downlink data transmission may be performed. In one aspect, the method may include transmitting PDCCH and/or PCFICH during a first subframe to allocate resources for a PDSCH during a second subframe and transmitting the PDSCH during the second subframe.

摘要翻译： 本公开的某些方面涉及对无线通信执行跨子帧控制信道信令。 可以提供一种用于在与可以执行下行链路数据传输的子帧不同的子帧中发送下行链路控制信道资源分配和/或物理控制格式指示的方法。 一方面，该方法可以包括在第一子帧期间发送PDCCH和/或PCFICH，以在第二子帧期间为PDSCH分配资源，并在第二子帧期间发送PDSCH。

公开(公告)号：US20110039595A1

公开(公告)日：2011-02-17

申请号：US12846608

申请日：2010-07-29

申请人： Tao Luo ,  Yongbin Wei ,  Durga Prasad Malladi

发明人： Tao Luo ,  Yongbin Wei ,  Durga Prasad Malladi

IPC分类号： H04W52/04

CPC分类号： H04W52/243 ,  H04W52/343

摘要： Devices and methods are provided for transmit power control in a wireless communication environment. In one embodiment, the method may involve measuring an interference amount over at least one of a sub-band and a full bandwidth. The method may involve assigning a level to the measured interference amount, the level comprising one of an overloaded level and an underloaded level. The method may involve encoding the level as an overload indicator, the overload indicator being conditioned on the sub-band such that the overload indicator includes enhanced layer symbols regarding the level of the measured interference amount. The method may involve conveying the overload indicator to at least one mobile device.

摘要翻译： 提供了用于无线通信环境中的发射功率控制的装置和方法。 在一个实施例中，该方法可以涉及通过子带和全带宽中的至少一个来测量干扰量。 该方法可以包括将水平分配给所测量的干扰量，所述水平包括过载水平和欠载水平之一。 该方法可以包括将电平编码为过载指示符，过载指示器在子带上进行调节，使得过载指示符包括关于所测量的干扰量的电平的增强层符号。 该方法可以包括将过载指示器传送到至少一个移动设备。

公开(公告)号：US07821917B2

公开(公告)日：2010-10-26

申请号：US12432245

申请日：2009-04-29

申请人： Durga Prasad Malladi ,  Peter Gaal ,  Yongbin Wei

发明人： Durga Prasad Malladi ,  Peter Gaal ,  Yongbin Wei

IPC分类号： H04J11/00

CPC分类号： H04L25/03159 ,  H04B2201/70701 ,  H04L25/0204 ,  H04L25/0224 ,  H04L25/03012 ,  H04L27/2602 ,  H04L27/2607 ,  H04L27/261 ,  H04L2025/03414 ,  H04W48/08 ,  H04W52/58 ,  H04W72/00 ,  H04W74/04

摘要： Techniques for transmitting data in a manner to facilitate equalization at a receiver are described. Guard intervals are appended to data blocks such that each data block has a guard interval at the beginning of the data block and a guard interval at the end of the data block. Each guard interval may be discontinuous transmission (DTX), a polyphase sequence, or some other known sequence. Pilot is appended to each set of at least one data block. The data blocks, pilot, and guard intervals may be sent using various slot structures and are processed for transmission. The processing may include mapping the data blocks to at least one physical channel, channelizing the data blocks for each physical channel with a channelization code, combining all physical channels, and scrambling the combined data, pilot, and guard intervals with a scrambling code.

摘要翻译： 描述了以便于在接收机处均衡的方式发送数据的技术。 保护间隔被附加到数据块，使得每个数据块在数据块的开始处具有保护间隔，并且在数据块的末尾具有保护间隔。 每个保护间隔可以是不连续传输（DTX），多相序列或一些其他已知序列。 导频被附加到每组至少一个数据块。 数据块，导频和保护间隔可以使用各种时隙结构发送，并被处理以进行传输。 该处理可以包括将数据块映射到至少一个物理信道，通过信道化码信道化每个物理信道的数据块，组合所有物理信道，以及用加扰码对组合的数据，导频和保护间隔进行加扰。

公开(公告)号：US07720093B2

公开(公告)日：2010-05-18

申请号：US10269784

申请日：2002-10-10

申请人： Yongbin Wei

发明人： Yongbin Wei

IPC分类号： H04J15/00 ,  H04J11/00

CPC分类号： H04L5/06 ,  H04L1/0003 ,  H04L27/2608 ,  H04L2001/0096

摘要： Systems and techniques are disclosed relating to communications. The systems and techniques involve communicating over a physical channel having a plurality of modulation channels each having a channel capacity by allocating a plurality of data streams among the modulation channels as a function of the channel capacity for each of the modulation channels, and modulating the data streams to support transmission over the physical channel as a function of the data stream allocation among the modulation channels. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.

摘要翻译： 公开了与通信相关的系统和技术。 该系统和技术涉及通过具有多个调制信道的物理信道进行通信，每个调制信道具有通道容量，每个调制信道通过在调制信道中分配多个数据流，作为每个调制信道的信道容量的函数，并调制数据 流以支持在物理信道上的传输作为调制信道之间的数据流分配的函数。 提交它的理解是，它不会用于解释或限制权利要求的范围或含义。