Transmit diversity scheme for uplink data transmissions
    71.
    发明授权
    Transmit diversity scheme for uplink data transmissions 有权
    用于上行链路数据传输的发射分集方案

    公开(公告)号:US08811371B2

    公开(公告)日:2014-08-19

    申请号:US12564809

    申请日:2009-09-22

    CPC分类号: H04B7/068 H04B7/0669

    摘要: Systems and methods are described herein for transmitting uplink SC-FDMA symbols. When an extended cyclic prefix is used, the symbols are divided into pairs, and the first symbol and a function of the second symbol in each pair is transmitted via a first antenna and the second symbol and a function of the first symbol in each pair is transmitted via a second symbol. When an unpaired symbol remains, the unpaired symbol is divided into halves, and a first function of the halves is transmitted on the first antenna and a second function of the halves is transmitted on the second antenna.

    摘要翻译: 这里描述了用于发送上行链路SC-FDMA符号的系统和方法。 当使用扩展循环前缀时,符号被分成对,并且每对中的第一符号和第二符号的函数经由第一天线发送,并且第二符号和每对中的第一符号的函数是 经由第二符号传送。 当未配对的符号保持时,不配对的符号被分成两半,并且半部分的第一功能在第一天线上传输,并且半部分的第二功能在第二天线上传输。

    Cubic-metric based frequency selective precoding for uplink in MIMO communication system
    72.
    发明授权
    Cubic-metric based frequency selective precoding for uplink in MIMO communication system 有权
    MIMO通信系统中上行链路的基于立方体的频率选择性预编码

    公开(公告)号:US08687728B2

    公开(公告)日:2014-04-01

    申请号:US13105654

    申请日:2011-05-11

    IPC分类号: H04B7/02

    摘要: A method of wireless communication is disclosed which includes acquiring a first set of precoding matrices for a set of frequency bands and generating a second set of precoding matrices for the set of frequency bands based on the first set of precoding matrices. The second set of precoding matrices enables a transmission that satisfies a cubic metric criteria in multiple-in multiple-out communication mode in the uplink. In some designs, generating the second set of precoding matrices can be based on restricting the first set of precoding matrices for a set of frequency bands and transmission rank, rotating the first set of precoding matrices based for a predetermined transmission rank, or a combination thereof.

    摘要翻译: 公开了一种无线通信的方法,其包括获取用于一组频带的第一组预编码矩阵,并且基于第一组预编码矩阵生成用于该频带组的第二组预编码矩阵。 第二组预编码矩阵使得能够在上行链路中以多输入多输出通信模式满足三次度量标准的传输。 在一些设计中,生成第二组预编码矩阵可以基于限制用于一组频带和传输秩的第一组预编码矩阵,以基于预定传输秩旋转第一组预编码矩阵,或其组合 。

    Apparatus and method for facilitating transmit diversity for communications
    73.
    发明授权
    Apparatus and method for facilitating transmit diversity for communications 有权
    用于促进通信的发射分集的装置和方法

    公开(公告)号:US08619544B2

    公开(公告)日:2013-12-31

    申请号:US12564827

    申请日:2009-09-22

    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。

    Method and apparatus for mutiplexing reference signal and data in a wireless communication system
    74.
    发明授权
    Method and apparatus for mutiplexing reference signal and data in a wireless communication system 有权
    用于在无线通信系统中多路复用参考信号和数据的方法和装置

    公开(公告)号:US09137076B2

    公开(公告)日:2015-09-15

    申请号:US12913684

    申请日:2010-10-27

    IPC分类号: H04L27/00 H04L27/26 H04L5/00

    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)。

    Antenna virtualization in a wireless communication environment
    75.
    发明授权
    Antenna virtualization in a wireless communication environment 有权
    无线通信环境中的天线虚拟化

    公开(公告)号:US08503572B2

    公开(公告)日:2013-08-06

    申请号:US12697689

    申请日:2010-02-01

    IPC分类号: H04L27/00

    摘要: Systems and methodologies are described that facilitate performing antenna virtualization in a wireless communication environment. A set of physical transmit antennas can be partitioned into a plurality of groups of physical transmit antennas. Further, a precoding vector for a particular group of physical transmit antennas from the plurality of groups of physical transmit antennas can be formulated. Moreover, the particular group of physical transmit antennas can form a particular virtual antenna. By way of another example, a disparate precoding vector for a disparate group of physical transmit antennas from the plurality of groups of physical transmit antennas can be formulated, and the disparate group of physical transmit antennas can form a disparate virtual antenna. The precoding vector can be applied to a signal for transmission over the particular virtual antenna, and the disparate precoding vector can be applied to a disparate signal for transmission over the disparate virtual antenna.

    摘要翻译: 描述了有助于在无线通信环境中执行天线虚拟化的系统和方法。 一组物理发射天线可被划分成多组物理发射天线。 此外,可以制定用于来自多组物理发射天线的特定物理发射天线组的预编码矢量。 此外,物理发射天线的特定组可以形成特定的虚拟天线。 作为另一示例,可以制定用于来自多组物理发射天线的不同组的物理发射天线的不同的预编码矢量,并且不同的物理发射天线组可以形成不同的虚拟天线。 预编码向量可以应用于用于在特定虚拟天线上传输的信号,并且不同的预编码矢量可以应用于不同的信号以在不同的虚拟天线上传输。

    METHOD AND APPARATUS FOR MUTIPLEXING REFERENCE SIGNAL AND DATA IN A WIRELESS COMMUNICATION SYSTEM
    76.
    发明申请
    METHOD AND APPARATUS FOR MUTIPLEXING REFERENCE SIGNAL AND DATA IN A WIRELESS COMMUNICATION SYSTEM 有权
    用于在无线通信系统中复用参考信号和数据的方法和装置

    公开(公告)号:US20110128909A1

    公开(公告)日:2011-06-02

    申请号:US12913684

    申请日:2010-10-27

    IPC分类号: H04W4/00

    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)。

    METHOD AND APPARATUS FOR MODULATION AND LAYER MAPPING IN A WIRELESS COMMUNICATION SYSTEM
    77.
    发明申请
    METHOD AND APPARATUS FOR MODULATION AND LAYER MAPPING IN A WIRELESS COMMUNICATION SYSTEM 有权
    无线通信系统中调制和层映射的方法与装置

    公开(公告)号:US20100202561A1

    公开(公告)日:2010-08-12

    申请号:US12702158

    申请日:2010-02-08

    IPC分类号: H04L27/00

    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。

    APPARATUS AND METHOD FOR FACILITATING TRANSMIT DIVERSITY FOR COMMUNICATIONS
    78.
    发明申请
    APPARATUS AND METHOD FOR FACILITATING TRANSMIT DIVERSITY FOR COMMUNICATIONS 有权
    促进传播传播多样性的装置和方法

    公开(公告)号:US20100074210A1

    公开(公告)日:2010-03-25

    申请号:US12564827

    申请日:2009-09-22

    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。

    MULTIPLEXING DATA AND REFERENCE INFORMATION IN A WIRELESS COMMUNICATION SYSTEM
    80.
    发明申请
    MULTIPLEXING DATA AND REFERENCE INFORMATION IN A WIRELESS COMMUNICATION SYSTEM 有权
    无线通信系统中的多路复用数据和参考信息

    公开(公告)号:US20110096657A1

    公开(公告)日:2011-04-28

    申请号:US12909704

    申请日:2010-10-21

    IPC分类号: H04J11/00 H04W4/00

    CPC分类号: H04L5/0001

    摘要: Methods, devices and computer program products are provided to improve uplink communications in a wireless communication system. Reference symbols in an uplink transmission radio subframe are time-frequency multiplexed with additional data symbols. The multiplexed data symbols are transmitted in an uplink transmission to another device within the wireless communication network along with non-multiplexed data symbols. The multiplexing operations enable the transmission of additional data symbols without increasing the overhead associated with the transmission of symbols in the radio subframe.

    摘要翻译: 提供方法,设备和计算机程序产品以改善无线通信系统中的上行链路通信。 上行链路传输无线电子帧中的参考符号与附加数据符号进行时间频率复用。 多路复用的数据符号在上行链路传输中与无复用数据符号一起发送到无线通信网络内的另一设备。 多路复用操作使得能够传输附加数据符号而不增加与无线电子帧中的符号传输相关联的开销。