Method and apparatus for sending and receiving a low-complexity transmission in a wireless communication system
    31.
    发明授权
    Method and apparatus for sending and receiving a low-complexity transmission in a wireless communication system 有权
    用于在无线通信系统中发送和接收低复杂度传输的方法和装置

    公开(公告)号:US08948154B2

    公开(公告)日:2015-02-03

    申请号:US13022328

    申请日:2011-02-07

    摘要: Techniques for supporting data transmission based on a low-complexity transmission scheme are described. In one design, a first user equipment (UE) generates a first transmission for a single subcarrier assigned to the first UE. The first UE sends the first transmission on the single subcarrier concurrently with a SC-FDMA transmission sent on multiple subcarriers by a second UE. In one design, the first UE generates a continuous sinusoidal signal at a frequency corresponding to the single subcarrier. The first UE modulates the continuous sinusoidal signal with data symbols and reference symbols. In one design, the first transmission includes a cyclic prefix followed by a useful portion in each symbol period and has phase discontinuity at symbol boundary. A base station processes a received signal to recover the first transmission sent by the first UE and the SC-FDMA transmission sent by the second UE.

    摘要翻译: 描述了用于支持基于低复杂度传输方案的数据传输的技术。 在一种设计中,第一用户设备(UE)为分配给第一UE的单个子载波生成第一传输。 第一UE在单个子载波上与第二UE在多个子载波上发送的SC-FDMA传输同时发送第一传输。 在一种设计中,第一UE以对应于单个子载波的频率产生连续的正弦信号。 第一个UE用数据符号和参考符号调制连续的正弦信号。 在一种设计中,第一传输包括循环前缀,后跟每个符号周期中的有用部分,并且在符号边界处具有相位不连续性。 基站处理接收到的信号以恢复由第一UE发送的第一传输和由第二UE发送的SC-FDMA传输。

    Method and apparatus for communication with shortened signal formats
    33.
    发明授权
    Method and apparatus for communication with shortened signal formats 有权
    用于缩短信号格式的通信方法和装置

    公开(公告)号:US08929393B2

    公开(公告)日:2015-01-06

    申请号:US13099184

    申请日:2011-05-02

    摘要: Techniques for addressing high interference observed by a receiver in a wireless communication system are disclosed. The receiver may observe different interference power levels across a transmission symbol. In an aspect, the receiver applies different weights to different portions of the transmission symbol to account for fluctuation of interference power across the transmission symbol. In another aspect, a transmitter may send a transmission symbol such that a receiver can ignore a portion of a symbol period with high interference. In one design, the transmitter generates a transmission symbol including at least two copies of a signal component. The transmitter transmits at least one copy of the signal component in a portion of the symbol period in which the receiver does not observe high interference. The receiver processes the at least one copy of the signal component to recover data sent in the transmission symbol.

    摘要翻译: 公开了一种用于解决由无线通信系统中的接收机观察到的高干扰的技术。 接收机可以在传输符号上观察不同的干扰功率电平。 在一方面,接收机对传输符号的不同部分应用不同的权重,以考虑跨越传输符号的干扰功率的波动。 在另一方面,发射机可以发送传输符号,使得接收机可以忽略具有高干扰的符号周期的一部分。 在一种设计中,发射机产生包括信号分量的至少两个副本的传输符号。 发射机在接收机不观察到高干扰的符号周期的一部分中发送信号分量的至少一个副本。 接收机处理信号分量的至少一个副本以恢复在传输符号中发送的数据。

    Open loop channel reporting in a wireless communication system
    34.
    发明授权
    Open loop channel reporting in a wireless communication system 有权
    无线通信系统中的开环通道报告

    公开(公告)号:US08923143B2

    公开(公告)日:2014-12-30

    申请号:US12822086

    申请日:2010-06-23

    摘要: Techniques for reporting channel quality indicator (CQI) in a wireless communication system are described. In one design, a UE determines CQI based on an assumption of a set of precoding matrices being used by a base station for data transmission to the UE. The base station may or may not actually use the set of precoding matrices assumed by the UE. The UE sends the CQI to the base station and thereafter receives data transmission sent by the base station based on the CQI. In one design, the UE determines the set of precoding matrices for a set of time-frequency resources available for data transmission to the UE. The UE determines the received signal quality of each time-frequency resource based on a precoding matrix for that time-frequency resource. The UE then determines the CQI based on the received signal qualities of the set of time-frequency resources.

    摘要翻译: 描述用于在无线通信系统中报告信道质量指示符(CQI)的技术。 在一种设计中,UE基于由基站用于向UE的数据传输使用的一组预编码矩阵的假设来确定CQI。 基站可以实际使用或不实际使用由UE假设的一组预编码矩阵。 UE将CQI发送到基站,然后基于CQI接收基站发送的数据发送。 在一种设计中,UE确定可用于向UE传输数据的一组时频资源的预编码矩阵集合。 UE基于该时频资源的预编码矩阵来确定每个时频资源的接收信号质量。 然后,UE基于该组时间 - 频率资源的接收信号质量来确定CQI。

    Pre-agreed radio link failure recovery channel sequence
    35.
    发明授权
    Pre-agreed radio link failure recovery channel sequence 有权
    预先约定的无线链路故障恢复信道序列

    公开(公告)号:US08908504B2

    公开(公告)日:2014-12-09

    申请号:US13535035

    申请日:2012-06-27

    IPC分类号: H04W24/00 H04W36/06 H04W76/02

    CPC分类号: H04W36/06 H04W76/19

    摘要: A method of wireless communication is provided. The method includes transmitting a message to notify a base station of a radio link failure on a current channel, retuning to a pre-agreed channel, and setting a time period to synchronize with the base station on the pre-agreed channel.

    摘要翻译: 提供了一种无线通信的方法。 该方法包括发送消息以通知基站当前信道上的无线电链路故障,重新调度到预先同意的信道,以及在预先同意的信道上设置与基站同步的时间段。

    Structured MIMO codebook
    36.
    发明授权
    Structured MIMO codebook 有权
    结构化MIMO码本

    公开(公告)号:US08891652B2

    公开(公告)日:2014-11-18

    申请号:US13167209

    申请日:2011-06-23

    摘要: Provided is a method of wireless communication which includes selecting a codebook from a plurality of codebooks in accordance with an antenna characteristic, and transmitting an indication of the selected codebook. Each of the plurality of codebooks is associated with one of a plurality of antenna characteristics. In some designs, channel state information is received from a user equipment. The channel state information may be used to determine downlink scheduling and/or precoding. In some designs, the channel state information may include feedback elements associated with different subband granularity. The feedback elements may also indicate a selection of a subset of precoder column vectors and/or a phase offset between two groups of transmit antennas.

    摘要翻译: 提供了一种无线通信方法,其包括根据天线特性从多个码本中选择码本,并发送所选码本的指示。 多个码本中的每一个与多个天线特性之一相关联。 在一些设计中,从用户设备接收信道状态信息。 信道状态信息可以用于确定下行链路调度和/或预编码。 在一些设计中,信道状态信息可以包括与不同子带粒度相关联的反馈元件。 反馈元件还可以指示预编码器列向量的子集的选择和/或两组发射天线之间的相位偏移。

    Timing adjustment for synchronous operation in a wireless network
    37.
    发明授权
    Timing adjustment for synchronous operation in a wireless network 有权
    无线网络同步运行的时序调整

    公开(公告)号:US08886205B2

    公开(公告)日:2014-11-11

    申请号:US12712755

    申请日:2010-02-25

    IPC分类号: H04W72/00 H04W56/00

    CPC分类号: H04W56/0045 H04W56/0005

    摘要: Techniques for adjusting transmit timing of base stations and user equipments (UEs) in a wireless network are described. In one operating scenario, a femto base station communicates with a femto UE, and a macro base station communicates with a macro UE located within the coverage of the femto base station. In an aspect, the transmit timing of the femto base station may be delayed relative to the transmit timing of the macro base station, e.g., to time align downlink signals from the femto and macro base stations at the femto and macro UEs. In another aspect, the transmit timing of the femto UE may be advanced relative to the transmit timing of femto base station by an amount larger than twice the propagation delay between the femto UE and the femto base station, e.g., to time align uplink signals from the femto and macro UEs at the femto base station.

    摘要翻译: 描述了用于调整无线网络中的基站和用户设备(UE)的发送定时的技术。 在一个操作场景中,毫微微基站与毫微微UE通信,并且宏基站与位于毫微微基站的覆盖范围内的宏UE进行通信。 在一方面,毫微微基站的发送定时可以相对于宏基站的发送定时被延迟,例如,在毫微微和宏UE处对来自毫微微基站和宏基站的下行链路信号进行时间调整。 在另一方面,毫微微UE的发送定时可以相对于毫微微基站的发送定时超过毫微微UE与毫微微基站之间的传播延迟的两倍的量进步,例如,将来自 毫微微基站处的毫微微和宏UE。

    Control channel resources for multi-bit ACK/NAK
    39.
    发明授权
    Control channel resources for multi-bit ACK/NAK 有权
    控制多位ACK / NAK的信道资源

    公开(公告)号:US08804639B2

    公开(公告)日:2014-08-12

    申请号:US13252116

    申请日:2011-10-03

    IPC分类号: H04W72/04

    摘要: A method of wireless communication includes receiving an upper layer configuration of multiple sets of ACK/NAK resources for uplink transmission. The receives resources correspond to at least one secondary downlink component carrier in a multicarrier configuration. The method also includes receiving a physical layer indicator of ACK/NAK resources in the sets.

    摘要翻译: 一种无线通信方法包括接收用于上行链路传输的多组ACK / NAK资源的上层配置。 接收资源对应于多载波配置中的至少一个辅助下行链路分量载波。 该方法还包括在集合中接收ACK / NAK资源的物理层指示符。

    Channel estimation with effective co-channel interference suppression
    40.
    发明授权
    Channel estimation with effective co-channel interference suppression 失效
    信道估计与有效的同信道干扰抑制

    公开(公告)号:US08787499B2

    公开(公告)日:2014-07-22

    申请号:US12055745

    申请日:2008-03-26

    摘要: A method for a wireless communication system is provided. The method includes isolating a set of pilot signals, where the pilot signals are associated with multiple base stations or multiple sectors of a single base station. This includes nulling a subset of the pilot signals to mitigate co-channel interference and to perform channel estimation in accordance with at least one of the pilot signals.

    摘要翻译: 提供了一种用于无线通信系统的方法。 该方法包括隔离一组导频信号,其中导频信号与单个基站的多个基站或多个扇区相关联。 这包括使导频信号的子集归零以减轻同信道干扰并根据导频信号中的至少一个执行信道估计。