Multiplexing demodulation reference signals in wireless communications
    91.
    发明授权
    Multiplexing demodulation reference signals in wireless communications 有权
    在无线通信中复用解调参考信号

    公开(公告)号:US09258160B2

    公开(公告)日:2016-02-09

    申请号:US12987771

    申请日:2011-01-10

    摘要: Methods and apparatuses are provided for determining cyclic shift (CS) values and/or orthogonal cover codes (OCC) for a plurality of demodulation reference signals (DM-RS) transmitted over multiple layers in multiple-input multiple-output (MIMO) communications. A CS index can be received from a base station in downlink control information (DCI) or similar signaling. Based at least in part on the CS index, CS values for the plurality of DM-RSs can be determined. In addition, OCC can be explicitly signaled or similarly determined from the CS index and/or a configured CS value received from a higher layer. In addition, controlling assignment of CS indices and/or OCC can facilitate providing orthogonality for communications from paired devices in multiuser MIMO.

    摘要翻译: 提供了用于确定在多输入多输出(MIMO)通信中通过多层传输的多个解调参考信号(DM-RS)的循环移位(CS)值和/或正交覆盖码(OCC)的方法和装置。 可以在下行链路控制信息(DCI)或类似信令中从基站接收CS索引。 至少部分地基于CS索引,可以确定多个DM-RS的CS值。 另外,可以从CS索引和/或从较高层接收到的配置的CS值明确地发信号或类似地确定OCC。 此外,控制CS索引和/或OCC的分配可以有助于在多用户MIMO中为来自配对设备的通信提供正交性。

    Fallback operation for cross-carrier signaling in multi-carrier operation
    92.
    发明授权
    Fallback operation for cross-carrier signaling in multi-carrier operation 有权
    多载波操作中的跨载波信号的后备操作

    公开(公告)号:US09124406B2

    公开(公告)日:2015-09-01

    申请号:US12976818

    申请日:2010-12-22

    IPC分类号: H04W4/00 H04B7/216 H04L5/00

    CPC分类号: H04L5/0091 H04L5/0053

    摘要: Techniques for supporting fallback operation in a multi-carrier communication system are described. In one aspect, a UE may determine at least one first downlink control information (DCI) format to monitor on a first carrier. The UE may monitor for the first DCI format(s) on the first carrier to detect DCI sent to the UE. The UE may receive a reconfiguration message related to communication on a plurality of carriers by the UE with cross-carrier signaling, and may determine at least one second DCI format to monitor on the first carrier based on the reconfiguration message. The UE may monitor for the first DCI format(s) and the second DCI format(s) on the first carrier after receiving the reconfiguration message.

    摘要翻译: 描述了用于支持多载波通信系统中的回退操作的技术。 一方面,UE可以确定在第一载波上监视的至少一个第一下行链路控制信息(DCI)格式。 UE可以监视第一载波上的第一DCI格式,以检测发送给UE的DCI。 UE可以接收与具有跨载波信令的UE在多个载波上的通信相关的重配置消息,并且可以基于重新配置消息确定至少一个第二DCI格式来监视第一载波。 在接收到重新配置消息之后,UE可以监视第一载波上的第一DCI格式和第二DCI格式。

    Interference randomization for uplink signaling
    93.
    发明授权
    Interference randomization for uplink signaling 有权
    上行信令的干扰随机化

    公开(公告)号:US09106389B2

    公开(公告)日:2015-08-11

    申请号:US13332701

    申请日:2011-12-21

    IPC分类号: H04L5/00 H04L1/16

    CPC分类号: H04L5/0062 H04L1/1692

    摘要: A method for transmitting an acknowledgement/negative acknowledgement is described. Cell-specific symbol-level cyclic shift hopping is applied to data single-carrier frequency division multiplexing symbols of the acknowledgement/negative acknowledgement. A discrete Fourier transform is applied to the data single-carrier frequency division multiplexing symbols. Cell-specific symbol-level phase hopping is applied to the data single-carrier frequency division multiplexing symbols. The data single-carrier frequency division multiplexing symbols are transmitted in a slot.

    摘要翻译: 描述用于发送确认/否定确认的方法。 小区特定符号级循环移位跳频被应用于确认/否定确认的数据单载波频分复用符号。 离散傅里叶变换被应用于数据单载波频分复用符号。 小区特定符号级相位跳变被应用于数据单载波频分复用符号。 数据单载波频分复用符号在时隙中发送。

    Carrier grouping for power headroom report
    94.
    发明授权
    Carrier grouping for power headroom report 有权
    载波分组功率余量报告

    公开(公告)号:US09084209B2

    公开(公告)日:2015-07-14

    申请号:US13291756

    申请日:2011-11-08

    摘要: Methods, systems, devices, and computer program products are disclosed which facilitate the transmission and reception of power headroom reports for component carriers in a multi carrier wireless communication system. A mobile device may determine available power headroom in a multicarrier configuration through a calculation of a maximum transmit power associated with a first component carrier (CC) in a subset of the CCs. The calculation can account for increases in transmit power of other component carriers in the subset by proportionally increasing transmit powers for each of the subset of CCs. A power headroom may be identified for one or more of the CCs based on a result of the calculation, and a power headroom report (PHR) may be generated that includes the power headroom available for the first CC.

    摘要翻译: 公开了方便,系统,设备和计算机程序产品,其有助于传输和接收多载波无线通信系统中的分量载波的功率余量报告。 移动设备可以通过计算与CC的子集中的第一分量载波(CC)相关联的最大发射功率来确定多载波配置中的可用功率余量。 该计算可以通过按比例增加CC的子集中的每一个的发射功率来解决子集中其他分量载波的发射功率的增加。 可以基于计算结果为一个或多个CC识别功率余量,并且可以生成包括可用于第一CC的功率余量的功率余量报告(PHR)。

    Channel quality feedback in multicarrier systems
    97.
    发明授权
    Channel quality feedback in multicarrier systems 有权
    多载波系统中的信道质量反馈

    公开(公告)号:US09019902B2

    公开(公告)日:2015-04-28

    申请号:US12616011

    申请日:2009-11-10

    摘要: A wireless communication system facilitates multichannel periodic and aperiodic feedback (e.g., Channel Quality Indicator (CQI), Rank indicator (RI), Precoding Matrix Indicator (PMI)) from a population of user equipment while facilitating legacy single carrier communication. Paired downlink (DL)/uplink (UL) or many-to-one mapping communication can be established by common system information or dedicated signaling. In one aspect, a flag sent by system information or by dedicated signaling can indicate which means controls. Feedback can be configured for each carrier independently reported in a concatenated in frequency fashion, reported in a cycle in time fashion, or reported in a staggered in time and frequency fashion. Feedback can be reported jointly as one wide bandwidth. Feedback can be a single report perhaps reported on a data channel for more capacity or by cycled carrier/subband reporting.

    摘要翻译: 无线通信系统便于来自用户设备的群体的多信道周期性和非周期性反馈(例如,信道质量指示符(CQI),秩指示符(RI),预编码矩阵指示符(PMI)),同时便于传统的单载波通信。 配对下行链路(DL)/上行链路(UL)或多对一映射通信可以由公共系统信息或专用信令建立。 在一个方面,由系统信息或专用信令发送的标志可以指示哪个装置控制。 反馈可以配置为以链接级联的频率方式单独报告,以时间顺序报告,或以时间和频率方式交错报告。 反馈可以联合报告为一个宽带宽。 反馈可以是可能在数据通道上报告更多容量或循环载波/子带报告的单个报告。

    Reference signal patterns
    98.
    发明授权
    Reference signal patterns 有权
    参考信号模式

    公开(公告)号:US08995465B2

    公开(公告)日:2015-03-31

    申请号:US13149766

    申请日:2011-05-31

    IPC分类号: H04J3/16 H04J3/00 H04L5/00

    CPC分类号: H04L5/0048

    摘要: Certain aspects of the present disclosure provide techniques for allocating resources for use in transmitting reference signals (RSs). According to certain aspects, a large set of enumerated possible CSI-RS resources (“CSI-RS patterns”) may be defined and a base station may select a CSI-RS pattern from a subset of the available patterns, with the subset determined by a transmission configuration.

    摘要翻译: 本公开的某些方面提供了用于分配用于发送参考信号(RS)的资源的技术。 根据某些方面,可以定义大量可能的CSI-RS资源(“CSI-RS模式”),并且基站可以从可用模式的子集中选择CSI-RS模式,其中子集由 传输配置。

    Time orthogonalization of reference signals
    99.
    发明授权
    Time orthogonalization of reference signals 有权
    参考信号的时间正交化

    公开(公告)号:US08982685B2

    公开(公告)日:2015-03-17

    申请号:US12576932

    申请日:2009-10-09

    IPC分类号: H04L5/00

    CPC分类号: H04L5/0048

    摘要: An apparatus for providing wireless coverage to a plurality of sectors includes means for generating a reference sequence, and means for applying a time domain orthogonal sequence to the reference sequence to generate a reference signal for broadcasting over one of the sectors. An apparatus for wireless communications within a sector includes means for receiving a broadcast within a sector, the received broadcast comprising a reference signal having a time domain orthogonal sequence applied to a reference sequence, and means for recovering the reference sequence from the received broadcast.

    摘要翻译: 用于向多个扇区提供无线覆盖的装置包括用于产生参考序列的装置,以及用于将时域正交序列应用于参考序列以产生用于在所述扇区之一上广播的参考信号的装置。 用于扇区内无线通信的装置包括:用于在扇区内接收广播的装置,所接收的广播包括具有应用于参考序列的时域正交序列的参考信号,以及用于从所接收的广播中恢复参考序列的装置。

    Method and apparatus for sounding antennas in wireless communication
    100.
    发明授权
    Method and apparatus for sounding antennas in wireless communication 有权
    无线通信天线探测方法及装置

    公开(公告)号:US08948196B2

    公开(公告)日:2015-02-03

    申请号:US13099200

    申请日:2011-05-02

    IPC分类号: H04B7/212 H04L25/03 H04L5/00

    CPC分类号: H04L25/03343 H04L5/0048

    摘要: Methods and apparatuses are provided that facilitate sounding antennas in wireless communication. In an aspect, a method for wireless communication includes determining at least one resource reserved for transmitting a demodulation reference signal and transmitting a sounding reference signal over the at least one resource. In another aspect, a method of wireless communication includes signaling a parameter related to sounding multiple antenna ports, receiving signals from a device over the multiple antenna ports, and estimating a channel related to the signals at least in part by removing a precoding from the signals.

    摘要翻译: 提供了便于在无线通信中探测天线的方法和装置。 一方面,一种用于无线通信的方法包括:确定至少一个被保留的用于发送解调参考信号的资源,以及通过所述至少一个资源发送探测参考信号。 在另一方面,一种无线通信方法包括:发信号通知多个天线端口的声音,从多个天线端口接收来自设备的信号,以及至少部分地通过从所述信​​号中去除预编码来估计与所述信号有关的信道 。