Interference cancellation in wireless communication
    1.
    发明授权
    Interference cancellation in wireless communication 失效
    无线通信中的干扰消除

    公开(公告)号:US08493942B2

    公开(公告)日:2013-07-23

    申请号:US11492609

    申请日:2006-07-24

    IPC分类号: H04B7/216

    摘要: Techniques for recovering transmissions on data and control channels with interference cancellation are described. A receiver derives a first interference estimate for a first channel based on a first channel estimate and cancels the first interference estimate from an input signal. The receiver thereafter derives a second interference estimate for the first channel based on a second channel estimate and cancels the second interference estimate in place of the first interference estimate from the input signal. The receiver may derive the first channel estimate based on pilot symbols and may derive the second channel estimate based on a correctly decoded packet. The second channel estimate may be of higher quality than the first channel estimate.

    摘要翻译: 描述了用于在具有干扰消除的数据和控制信道上恢复传输的技术。 接收机基于第一信道估计导出第一信道的第一干扰估计,并从输入信号中消除第一干扰估计。 接收机此后基于第二信道估计得出第一信道的第二干扰估计,并且从输入信号中取代第二干扰估计代替第一干扰估计。 接收机可以基于导频符号导出第一信道估计,并且可以基于正确解码的分组导出第二信道估计。 第二信道估计可以具有比第一信道估计更高的质量。

    Channel equalization with non-common midamble allocation in 3GPP TD-CDMA systems
    2.
    发明授权
    Channel equalization with non-common midamble allocation in 3GPP TD-CDMA systems 有权
    在3GPP TD-CDMA系统中使用非公共中置码分配的信道均衡

    公开(公告)号:US08102795B2

    公开(公告)日:2012-01-24

    申请号:US11684251

    申请日:2007-03-09

    IPC分类号: H04B7/212

    CPC分类号: H04L25/03038 H04L25/0228

    摘要: Systems and methodologies are described that facilitate implementing a linear adaptive equalizer receiver on the downlink link of a UMTS TDD wireless communication system. A reference signal can be generated based on multiple non-common midamble sequences in a time slot of a received transmission. Traffic-to-pilot ratios for channel codes in the time slot can be generated, and relative strengths of channel codes associated with specific midambles can be determined to weight the midamble. A plurality of the weighted midambles can then be utilized to generate a reference signal to train the equalizer, which can facilitate utilization of total aggregate midamble energy rather than midamble energy associated with a single midamble in the signal.

    摘要翻译: 描述了有助于在UMTS TDD无线通信系统的下行链路链路上实现线性自适应均衡器接收机的系统和方法。 可以基于接收到的传输的时隙中的多个非公共中继码序列来生成参考信号。 可以生成时隙中的信道码的业务导频比,并且可以确定与特定中间码相关联的信道码的相对强度以加权中间码。 然后可以利用多个加权的中间码来产生参考信号以训练均衡器,这可以有助于总共聚合中间码能量的利用,而不是信号中与单个中间码相关联的中间码能量。

    CHANNEL EQUALIZATION WITH NON-COMMON MIDAMBLE ALLOCATION IN 3GPP TD-CDMA SYSTEMS
    3.
    发明申请
    CHANNEL EQUALIZATION WITH NON-COMMON MIDAMBLE ALLOCATION IN 3GPP TD-CDMA SYSTEMS 有权
    在3GPP TD-CDMA系统中使用非公共MIDAMBLE分配的信道均衡

    公开(公告)号:US20080219342A1

    公开(公告)日:2008-09-11

    申请号:US11684251

    申请日:2007-03-09

    IPC分类号: H03K5/159 H03K9/00

    CPC分类号: H04L25/03038 H04L25/0228

    摘要: Systems and methodologies are described that facilitate implementing a linear adaptive equalizer receiver on the downlink link of a UMTS TDD wireless communication system. A reference signal can be generated based on multiple non-common midamble sequences in a time slot of a received transmission. Traffic-to-pilot ratios for channel codes in the time slot can be generated, and relative strengths of channel codes associated with specific midambles can be determined to weight the midamble. A plurality of the weighted midambles can then be utilized to generate a reference signal to train the equalizer, which can facilitate utilization of total aggregate midamble energy rather than midamble energy associated with a single midamble in the signal.

    摘要翻译: 描述了有助于在UMTS TDD无线通信系统的下行链路链路上实现线性自适应均衡器接收机的系统和方法。 可以基于接收到的传输的时隙中的多个非公共中继码序列来生成参考信号。 可以生成时隙中的信道码的业务导频比,并且可以确定与特定中间码相关联的信道码的相对强度以加权中间码。 然后可以利用多个加权的中间码来产生参考信号以训练均衡器,这可以有助于总共聚合中间码能量的利用,而不是信号中与单个中间码相关联的中间码能量。

    System and method for uplink multiple input multiple output transmission
    4.
    发明授权
    System and method for uplink multiple input multiple output transmission 有权
    用于上行多路输入多输出传输的系统和方法

    公开(公告)号:US09084207B2

    公开(公告)日:2015-07-14

    申请号:US13291051

    申请日:2011-11-07

    摘要: Methods and apparatuses are provided for uplink MIMO transmissions in a wireless communication system. In particular, an enhanced pilot reference may be provided for enabling increased data rates on a secondary stream. Specifically, a primary stream, provided on a primary virtual antenna, includes an enhanced primary data channel E-DPDCH, a primary control channel DPCCH, and an enhanced primary control channel E-DPCCH. Further, a secondary stream, provided on a secondary virtual antenna, includes an enhanced secondary data channel S-E-DPDCH and a secondary control channel S-DPCCH. Here, the secondary control channel S-DPCCH may be transmitted at a boosted power level relative to a determined reference power level.

    摘要翻译: 在无线通信系统中提供用于上行链路MIMO传输的方法和装置。 特别地,可以提供增强的导频参考以使得能够在次流上实现增加的数据速率。 具体地说,提供在主虚拟天线上的主流包括增强的主数据信道E-DPDCH,主控制信道DPCCH以及增强型主控制信道E-DPCCH。 此外,设置在辅助虚拟天线上的次流包括增强的辅助数据信道S-E-DPDCH和辅助控制信道S-DPCCH。 这里,次级控制信道S-DPCCH可以相对于确定的参考功率电平以升高的功率电平发送。

    Method and apparatus for signaling user equipment capabilities
    5.
    发明授权
    Method and apparatus for signaling user equipment capabilities 有权
    用于指示用户设备能力的方法和装置

    公开(公告)号:US09001750B2

    公开(公告)日:2015-04-07

    申请号:US13079549

    申请日:2011-04-04

    IPC分类号: H04W72/04 H04W8/22

    CPC分类号: H04W8/22 H04W8/24 H04W28/20

    摘要: Apparatus and methods that provide wireless communications, where a method for wireless communications includes receiving at a Node B a first set of bits indicating at least two frequency bands supported by a UE for HSDPA, the first set of bits further specifying a number of downlink adjacent carriers supported by the UE for each of the at least two frequency bands. The method also includes transmitting a first set of bits indicating support for a set of carriers for each band, the information comprising information related to a maximum channel bandwidth supported for that band; and transmitting a second set of bits indicating a configuration for the set of carriers under which multiple uplinks will be supported.

    摘要翻译: 提供无线通信的装置和方法,其中用于无线通信的方法包括在节点B处接收指示UE为HSDPA支持的至少两个频带的第一组比特,所述第一组比特还指定下行链路相邻的数量 所述UE支持所述至少两个频带中的每一个的载波。 该方法还包括:发送指示支持每个频带的一组载波的第一组比特,该信息包括与该频带支持的最大信道带宽有关的信息; 以及发送指示将支持多个上行链路的载波集合的配置的第二组比特。

    Closed loop transmit diversity in continuous packet connectivity
    6.
    发明授权
    Closed loop transmit diversity in continuous packet connectivity 有权
    连续分组连接中的闭环发射分集

    公开(公告)号:US08942147B2

    公开(公告)日:2015-01-27

    申请号:US13344222

    申请日:2012-01-05

    IPC分类号: H04B7/00 H04B7/06 H04B7/04

    摘要: Apparatus and methods for communicating in a wireless network include receiving a weight vector in a slot for providing closed loop transmit diversity to signals in a next slot, holding the weight vector over a plurality of slots following a transmission burst, and applying the weight vector to signals in at least one slot of a subsequent transmission burst in discontinuous transmit. Additional apparatus and methods for communicating in a wireless network include determining a weight vector based on signals received from a device to provide closed loop transmit diversity feedback to the device, holding the weight vector over a plurality of slots following receiving a transmission burst, and applying the weight vector for signals received in at least one slot of a subsequent transmission burst from the device.

    摘要翻译: 用于在无线网络中进行通信的设备和方法包括:在时隙中接收权重向量,以向下一个时隙中的信号提供闭环发射分集,将传播突发之后的多个时隙保持权重向量,并将该权重向量 在不连续发送中的后续传输突发的至少一个时隙中的信号。 用于在无线网络中进行通信的附加装置和方法包括基于从设备接收的信号来确定权重向量,以向接收到传输突发的数据提供闭环发射分集反馈给该设备,保持加权矢量在多个时隙上,以及应用 在来自设备的后续传输突发的至少一个时隙中接收的信号的权重向量。

    Apparatus and method for providing HARQ feedback in a multi-carrier wireless communication system
    9.
    发明授权
    Apparatus and method for providing HARQ feedback in a multi-carrier wireless communication system 有权
    在多载波无线通信系统中提供HARQ反馈的装置和方法

    公开(公告)号:US08767797B2

    公开(公告)日:2014-07-01

    申请号:US12897460

    申请日:2010-10-04

    摘要: A method and apparatus provide hybrid automatic repeat request (HARQ) feedback corresponding to the status of multiple downlink carriers, with or without MIMO being configured. Here, for at least some configurations, with respect to the selection of HARQ feedback symbols, the downlink carriers are grouped into groups of one or two carriers such that HARQ feedback symbol code books that were previously implemented in conventional HSDPA or DC-HSDPA systems may be utilized. That is, after encoding a data stream, HARQ feedback symbols selected from a plurality of code books configured for groups of one or two of the downlink carriers are utilized to modulate an uplink channel. The modulation or channelization may be accomplished with dual channelization codes or a single channelization code with a reduced spreading factor to insert two symbols into a single time slot.

    摘要翻译: 一种方法和装置提供与MIMO有关的多个下行链路载波的状态对应的混合自动重传请求(HARQ)反馈。 这里,对于至少一些配置,对于HARQ反馈符号的选择,下行链路载波被分组成一个或两个载波的组,使得先前在常规HSDPA或DC-HSDPA系统中实现的HARQ反馈符号码本可以 被利用。 也就是说,在对数据流进行编码之后,利用从针对一个或两个下行链路载波的组配置的多个码本中选择的HARQ反馈符号来调制上行链路信道。 调制或信道化可以用双信道化码或具有减小的扩展因子的单个信​​道化码来实现,以将两个符号插入到单个时隙中。

    Apparatus and method for jointly selecting precoding matrices in a MIMO multi-flow system
    10.
    发明授权
    Apparatus and method for jointly selecting precoding matrices in a MIMO multi-flow system 有权
    在MIMO多流系统中共同选择预编码矩阵的装置和方法

    公开(公告)号:US08737513B2

    公开(公告)日:2014-05-27

    申请号:US13558588

    申请日:2012-07-26

    IPC分类号: H04B7/02

    摘要: An apparatus and a method are disclosed for jointly selecting precoding matrices for a plurality of received transmissions, such as those that might be received from a primary serving cell and a secondary serving cell in a multi-flow radio access network wherein each of the serving cells is configured to provide a MIMO transmission. Here, by jointly selecting the precoding matrices, interference from each of the downlink transmissions upon the other transmission can be reduced, thus improving overall performance at the receiving entity.

    摘要翻译: 公开了一种用于共同选择用于多个接收的传输的预编码矩阵的装置和方法,诸如可以在多流无线电接入网中的主服务小区和次服务小区接收的那些,其中每个服务小区 被配置为提供MIMO传输。 这里,通过共同选择预编码矩阵,可以减少来自其他传输的每个下行链路传输的干扰,从而提高接收实体的总体性能。