公开(公告)号：US20120093095A1

公开(公告)日：2012-04-19

申请号：US13085080

申请日：2011-04-12

申请人： Alan Barbieri ,  Tingfang Ji ,  Tao Luo ,  Madhavan Srinivasan Vajapeyam ,  Osok Song ,  Aleksandar Damnjanovic ,  Yongbin Wei ,  Parag Arun Agashe ,  Durga Prasad Malladi

发明人： Alan Barbieri ,  Tingfang Ji ,  Tao Luo ,  Madhavan Srinivasan Vajapeyam ,  Osok Song ,  Aleksandar Damnjanovic ,  Yongbin Wei ,  Parag Arun Agashe ,  Durga Prasad Malladi

IPC分类号： H04W72/12

CPC分类号： H04W72/0426 ,  H04W72/005 ,  H04W72/1231 ,  H04W72/1289

摘要： A method, an apparatus, and a computer program product for wireless communication are provided in which an apparatus may determine broadcast channel scheduling information for one or more broadcasts of a payload by a broadcast channel associated with a first base station based on one or more broadcast channel interference coordination schemes, wherein reception of the broadcast channel associated with the first base station is interfered at least in part based on one or more transmissions from a second base station, and receive the payload based on the determined broadcast channel scheduling information.

摘要翻译： 提供了一种用于无线通信的方法，装置和计算机程序产品，其中装置可以基于一个或多个广播来确定与第一基站相关联的广播信道的有效载荷的一个或多个广播的广播信道调度信息 信道干扰协调方案，其中与第一基站相关联的广播信道的接收至少部分地基于来自第二基站的一个或多个传输被干扰，并且基于所确定的广播信道调度信息来接收有效载荷。

公开(公告)号：US08135351B2

公开(公告)日：2012-03-13

申请号：US11743630

申请日：2007-05-02

申请人： Durga Prasad Malladi ,  Josef Blanz ,  Yongbin Wei

发明人： Durga Prasad Malladi ,  Josef Blanz ,  Yongbin Wei

IPC分类号： H04B1/10

CPC分类号： H04L25/0242

摘要： A method for improving channel estimation in a wireless communication system is disclosed. A wireless signal that includes a plurality of multipath components is received. N channel estimates are then obtained, where N is any positive integer greater than one. Each channel estimate of the N channel estimates corresponds to a different multipath component of the plurality of multipath components. The effects of interference between the plurality of multipath components on the N channel estimates is then reduced.

摘要翻译： 公开了一种在无线通信系统中改善信道估计的方法。 接收包括多个多径分量的无线信号。 然后获得N个信道估计，其中N是大于1的任何正整数。 N信道估计的每个信道估计对应于多个多径分量的不同的多径分量。 然后减少在N个信道估计上的多个多径分量之间的干扰的影响。

公开(公告)号：US20120039284A1

公开(公告)日：2012-02-16

申请号：US13210341

申请日：2011-08-15

申请人： Alan Barbieri ,  Durga Prasad Malladi ,  Yongbin Wei ,  Naga Bhushan ,  Peter Gaal

发明人： Alan Barbieri ,  Durga Prasad Malladi ,  Yongbin Wei ,  Naga Bhushan ,  Peter Gaal

IPC分类号： H04W72/04

CPC分类号： H04W48/10 ,  H04W16/14 ,  H04W72/0406 ,  H04W74/0833 ,  H04W88/06

摘要： Techniques are provided for control signaling and channel selection in cognitive Long Term Evolution (LTE). In one example, there is provided a method, operable by a mobile entity, that involves receiving, on a licensed channel, broadcasted channel usage information regarding at least one unlicensed channel used by one or more network nodes. The method further involves: performing a cell search procedure based at least in part on the channel usage information to select a given network node among the one or more network nodes; determining at least one random access parameter to be used in establishing wireless communication with the given network node, the at least one random access parameter being associated with a characteristic of the user device and determining a preferred downlink channel.

摘要翻译： 提供技术用于认知长期演进（LTE）中的控制信令和信道选择。 在一个示例中，提供了一种由移动实体操作的方法，其涉及在许可频道上接收关于由一个或多个网络节点使用的至少一个非许可信道的广播信道使用信息。 所述方法还包括：至少部分地基于所述信道使用信息来执行小区搜索过程，以选择所述一个或多个网络节点中的给定网络节点; 确定要用于建立与所述给定网络节点的无线通信中的至少一个随机接入参数，所述至少一个随机接入参数与所述用户设备的特性相关联并且确定优选下行链路信道。

公开(公告)号：US20120036416A1

公开(公告)日：2012-02-09

申请号：US13023430

申请日：2011-02-08

申请人： Renqiu Wang ,  Hao Xu ,  Yongbin Wei ,  Dung Ngoc Doan

发明人： Renqiu Wang ,  Hao Xu ,  Yongbin Wei ,  Dung Ngoc Doan

IPC分类号： H03M13/23 ,  H03M13/41 ,  G06F11/10

CPC分类号： H03M13/4115 ,  H03M13/413

摘要： A low complexity List Viterbi algorithm (LVA) for decoding tail biting convolutional codes (TBCCs) has lower complexity than a solution of running the LVA algorithm for all states. In one aspect, a low complexity LVA-TBCC process includes finding a list of states from a single Viterbi algorithm and finding a list of potential codewords for each state in the state list using the LVA. A cyclic redundancy check may prune out false solutions. The disclosed method may be applied to many communication systems to improve error performance similar to LTE downlink PBCH decoding enhancements.

摘要翻译： 用于解码尾部卷积码（TBCC）的低复杂度List Viterbi算法（LVA）比对所有状态运行LVA算法的解决方案具有更低的复杂度。 一方面，低复杂性LVA-TBCC过程包括从单个维特比算法中查找状态列表，并使用LVA查找状态列表中每个状态的潜在码字列表。 循环冗余校验可以修剪错误的解决方案。 所公开的方法可以应用于许多通信系统以改善类似于LTE下行链路PBCH解码增强的错误性能。

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：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。