公开(公告)号：US20110228731A1

公开(公告)日：2011-09-22

申请号：US12890452

申请日：2010-09-24

申请人： Xiliang Luo ,  Wanshi Chen ,  Jelena M. Damnjanovic ,  Peter Gaal ,  Juan Montojo

发明人： Xiliang Luo ,  Wanshi Chen ,  Jelena M. Damnjanovic ,  Peter Gaal ,  Juan Montojo

IPC分类号： H04W72/04

CPC分类号： H04W72/1268 ,  H01Q3/2605 ,  H04W52/146 ,  H04W52/325 ,  H04W72/04

摘要： Systems and methods for resource allocation for an uplink control channel for a user equipment (UE) using multiple transmit antennas in a wireless communication network are disclosed. A plurality of orthogonal resources for use by the UE on the uplink control channel is selected. Control information is transmitted from the UE on the uplink control channel on the plurality of orthogonal resources with transmit diversity.

摘要翻译： 公开了用于在无线通信网络中使用多个发射天线的用户设备（UE）的上行链路控制信道的资源分配的系统和方法。 选择由UE在上行链路控制信道上使用的多个正交资源。 在具有发送分集的多个正交资源上的上行链路控制信道上，从UE发送控制信息。

公开(公告)号：US20110207415A1

公开(公告)日：2011-08-25

申请号：US12849185

申请日：2010-08-03

申请人： Xiliang Luo ,  Wanshi Chen ,  Juan Montojo

发明人： Xiliang Luo ,  Wanshi Chen ,  Juan Montojo

IPC分类号： H04B1/04

CPC分类号： H04W52/42 ,  H04B7/0413 ,  H04W52/146 ,  H04W52/243

摘要： In a wireless communication network that performs Multiple Input Multiple Output (MIMO) communication, uplink power control signals are provided to a user equipment (UE) via a base station signaled power allocation scheme responsive to a determination of whether or not the uplink transmission is in a interference limited condition relative to a neighboring cell.

摘要翻译： 在执行多输入多输出（MIMO）通信的无线通信网络中，上行链路功率控制信号经由基站信号功率分配方案向用户设备（UE）提供，响应于确定上行链路传输是否在 相对于相邻小区的干扰限制条件。

公开(公告)号：US20110128909A1

公开(公告)日：2011-06-02

申请号：US12913684

申请日：2010-10-27

申请人： Xiliang Luo ,  Juan Montojo ,  Peter Gaal ,  Ravi Palanki

发明人： Xiliang Luo ,  Juan Montojo ,  Peter Gaal ,  Ravi Palanki

IPC分类号： H04W4/00

CPC分类号： H04L27/2613 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/0051

摘要： Techniques for efficiently multiplexing a reference signal and data on different sets of subcarriers in the same symbol period are described. In one design, a user equipment (UE) performs a discrete Fourier transform (DFT) on a set of modulation symbols for data to obtain data symbols. The UE also obtains reference symbols generated based on a reference signal sequence corresponding to a cyclic shift of a base sequence. The UE maps the reference symbols to a first set of subcarriers and maps the data symbols to a second set of subcarriers. The UE then generates a transmission symbol based on the mapped reference symbols and the mapped data symbols. The UE may also transmit reference signals and data (i) in multiple symbol periods of a slot or a subframe and/or (ii) from multiple antennas using frequency division multiplexing (FDM) or code division multiplexing (CDM).

摘要翻译： 描述用于在相同符号周期中高效地多路复用参考信号和不同子载波集合上的数据的技术。 在一种设计中，用户设备（UE）对用于数据的一组调制符号执行离散付里叶变换（DFT）以获得数据符号。 UE还获得基于与基本序列的循环移位相对应的参考信号序列生成的参考符号。 UE将参考符号映射到第一组子载波，并将数据符号映射到第二组子载波。 然后，UE基于映射的参考符号和映射的数据符号来生成传输符号。 UE还可以使用频分复用（FDM）或码分多路复用（CDM）在多个天线的时隙或子帧的多个符号周期中和/或（ii））发送参考信号和数据（i）。

公开(公告)号：US20100234061A1

公开(公告)日：2010-09-16

申请号：US12722433

申请日：2010-03-11

申请人： Aamod D. Khandekar ,  Ravi Palanki ,  Mohammad J. Borran ,  Kapil Bhattad ,  Xiliang Luo

发明人： Aamod D. Khandekar ,  Ravi Palanki ,  Mohammad J. Borran ,  Kapil Bhattad ,  Xiliang Luo

IPC分类号： H04B7/00

CPC分类号： H04W52/243 ,  H04W52/146 ,  H04W52/241 ,  H04W52/242 ,  H04W52/54 ,  H04W52/58

摘要： Methods, systems, apparatus and computer program products are provided to facilitate power control in wireless communication systems. A cell that is experiencing excessive interference conditions may generate an over-the-air overload indicator indicative of interference conditions at the cell. The over-the-air overload indicator is received by one or more user equipment in a neighboring cell. In response, the user equipment determines adjustments to its transmit power that reduce and/or eliminate the interference. This determination may be carried out by the user equipment, by the serving base station, or through cooperation between the user equipment and the serving base station. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the disclosed subject matter. Therefore, it is to be understood that it should not be used to interpret or limit the scope or the meaning of the claims.

摘要翻译： 提供方法，系统，装置和计算机程序产品以便于无线通信系统中的功率控制。 正在经历过多干扰条件的小区可能会产生指示小区干扰情况的空中过载指示器。 空中过载指示符由相邻小区中的一个或多个用户设备接收。 作为响应，用户设备确定减少和/或消除干扰的其发射功率的调整。 该确定可以由用户设备，服务基站或者通过用户设备与服务基站之间的协作进行。 本摘要仅用于遵守允许读者快速确定所披露的主题的抽象要求规则。 因此，应当理解，它不应用于解释或限制权利要求书的范围或含义。

公开(公告)号：US20100202561A1

公开(公告)日：2010-08-12

申请号：US12702158

申请日：2010-02-08

申请人： Alexei Y. Gorokhov ,  Juan Montojo ,  Xiaoxia Zhang ,  Peter Gaal ,  Xiliang Luo

发明人： Alexei Y. Gorokhov ,  Juan Montojo ,  Xiaoxia Zhang ,  Peter Gaal ,  Xiliang Luo

IPC分类号： H04L27/00

CPC分类号： H04L27/0008 ,  H04L5/0064 ,  H04L27/20 ,  H04L27/2602 ,  H04L27/36

摘要： Systems and methodologies are described herein that facilitate improved modulation and coding techniques for a multiple-in multiple-out (MIMO) communication system. As described herein, data to be transmitted over a set of physical layers (e.g., corresponding to antennas, beams, etc.) can be processed such that encoding is performed on a per-codeword basis and modulation is performed on a per-layer basis, thereby mitigating performance degradation experienced by traditional systems due to layer imbalance. As further described herein, per-codeword code rate parameters and per-layer modulation parameters can be signaled to a device in various manners, such as through modulation and coding scheme (MCS) signaling, explicit code rate and/or modulation scheme signaling, relative code rate and/or modulation scheme signaling, or the like.

摘要翻译： 本文描述了促进针对多输入多输出（MIMO）通信系统的改进的调制和编码技术的系统和方法。 如本文所描述的，可以处理要在一组物理层（例如，对应于天线，波束等）上传输的数据，使得在每个码字的基础上执行编码，并且基于每层进行调制 ，从而减轻传统系统由于层不平衡而导致的性能下降。 如本文进一步描述的，每码字码速率参数和每层调制参数可以以各种方式向设备发信号，例如通过调制和编码方案（MCS）信令，显式码率和/或调制方式信令，相对 码率和/或调制方案信令等。

公开(公告)号：US20100074210A1

公开(公告)日：2010-03-25

申请号：US12564827

申请日：2009-09-22

申请人： Peter Gaal ,  Juan Montojo ,  Xiliang Luo ,  Xiaoxia Zhang

发明人： Peter Gaal ,  Juan Montojo ,  Xiliang Luo ,  Xiaoxia Zhang

IPC分类号： H04W72/04

CPC分类号： H04J13/00 ,  H04B7/0671

摘要： A method and apparatus facilitating transmit diversity for control information communications is provided. The method may comprise processing received content, generating control information in response to the processed content, allocating two or more resources associated with two or more transmit antennas for transmitting the control information using a transmit diversity scheme, and determining cyclic shifts by applying a predetermined cyclic shift delta parameter.

摘要翻译： 提供了一种便于控制信息通信的发送分集的方法和装置。 该方法可以包括处理所接收的内容，响应于所处理的内容产生控制信息，分配与两个或多个发射天线相关联的两个或多个资源，用于使用发射分集方案发射控制信息，以及通过应用预定的周期 移位delta参数。

公开(公告)号：US09635624B2

公开(公告)日：2017-04-25

申请号：US13401660

申请日：2012-02-21

申请人： Hao Xu ,  Xiliang Luo ,  Peter Gaal ,  Tingfang Ji ,  Kapil Bhattad

发明人： Hao Xu ,  Xiliang Luo ,  Peter Gaal ,  Tingfang Ji ,  Kapil Bhattad

IPC分类号： H04W52/40 ,  H04B7/024 ,  H04W52/50 ,  H04W52/24 ,  H04L5/00

CPC分类号： H04W52/40 ,  H04B7/024 ,  H04L5/0048 ,  H04W52/242 ,  H04W52/244 ,  H04W52/50

摘要： Certain aspects of the present disclosure relate to techniques that may be used to discover transmission points in heterogeneous networks (HetNet) that involves coordinated multi-point (CoMP) transmission and reception. Certain aspects of the present disclosure provide a method for wireless communications by a user equipment (UE). The method generally includes receiving a configuration indicating distinct resources used by each of a plurality of different transmission points involved in coordinated multipoint (CoMP) operations with the UE for transmitting discovery reference signals (RSs), receiving distinct discovery RSs transmitted from the plurality of different transmission points, and calculating at least one of path loss or reference signal received power (RSRP) estimations for each of the transmission points based on the distinct discovery RSs.

公开(公告)号：US09608780B2

公开(公告)日：2017-03-28

申请号：US12564670

申请日：2009-09-22

申请人： Xiliang Luo ,  Peter Gaal ,  Juan Montojo ,  Wanshi Chen

发明人： Xiliang Luo ,  Peter Gaal ,  Juan Montojo ,  Wanshi Chen

IPC分类号： H04L5/00 ,  H04B7/06 ,  H04L1/06 ,  H04L27/26

CPC分类号： H04L5/0023 ,  H04B7/0667 ,  H04B7/068 ,  H04L1/0618 ,  H04L27/2607

摘要： Techniques for transmitting data with transmit diversity for single-carrier frequency division multiple access (SC-FDMA) are described. In one design, a transmitter (e.g., a UE) may form a first symbol vector including first and second modulation symbol sequences. The transmitter may also form a second symbol vector including third and fourth modulation symbol sequences, which may be generated based on the second and first modulation symbol sequences, respectively. Each symbol vector may further include a cyclic prefix and possibly a cyclic postfix for each modulation symbol sequence. The transmitter may generate a first SC-FDMA symbol based on the first symbol vector and a second SC-FDMA symbol based on the second symbol vector. The transmitter may transmit the first and second SC-FDMA symbols from two transmit antennas in a single SC-FDMA symbol period to achieve transmit diversity.

公开(公告)号：US08964703B2

公开(公告)日：2015-02-24

申请号：US12443978

申请日：2007-11-01

申请人： Wanshi Chen ,  Xiaoxia Zhang ,  Durga Prasad Malladi ,  Xiliang Luo

发明人： Wanshi Chen ,  Xiaoxia Zhang ,  Durga Prasad Malladi ,  Xiliang Luo

IPC分类号： H04W4/00 ,  H04B7/216 ,  H04W52/34 ,  H04L5/00 ,  H04W52/24 ,  H04W72/04

CPC分类号： H04W72/0486 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0092 ,  H04W52/248 ,  H04W52/34

摘要： A system and method for facilitating resource management in OFDM systems is provided. The system permits different and flexible resource cell metric operations levels (e.g. uplink load management, admission control, congestion control, signal handoff control) for different sub-bands. For the uplink load management, there are multiple distinct load operation points (e.g. IoT, RoT) per sub-band group instead of the same operation level across the entire available band. The sub-band groups encompass the entire band. The facilitation system also comprises a variety of transmitting protocols, command increment variable stepsize methods and robust command response methods. The system thus provides more flexible reverse link resource management and more efficient utilization of the bandwidth.

公开(公告)号：US08958393B2

公开(公告)日：2015-02-17

申请号：US12536956

申请日：2009-08-06

申请人： Xiliang Luo ,  Juan Montojo

发明人： Xiliang Luo ,  Juan Montojo

IPC分类号： H04W4/00

CPC分类号： H04W36/30 ,  H04W36/08 ,  H04W36/36

摘要： Certain aspects of the present disclosure propose methods for enhanced handover procedures that are controlled by either the user equipment (UE) or the serving evolved node-B (eNB). The methods take into account the qualities of both the reverse and forward communication links between the UE and the neighboring eNBs in selecting a target eNB for handover.

摘要翻译： 本公开的某些方面提出了由用户设备（UE）或服务演进节点B（eNB）控制的用于增强的切换过程的方法。 在选择目标eNB进行切换时，该方法考虑了UE与相邻eNB之间的反向和远程通信链路的质量。