METHOD AND APPARATUS FOR SUPPORTING COMMUNICATION IN LOW SNR SCENARIO
    51.
    发明申请
    METHOD AND APPARATUS FOR SUPPORTING COMMUNICATION IN LOW SNR SCENARIO 有权
    支持低信噪比通信的方法和装置

    公开(公告)号:US20100246427A1

    公开(公告)日:2010-09-30

    申请号:US12729756

    申请日:2010-03-23

    IPC分类号: H04J1/16 H04W4/00

    摘要: Techniques for supporting communication for wireless devices in a wireless network are described. The wireless network may support a first physical channel having a first minimum SNR for reliable reception. Some wireless devices may require operation at a lower SNR. In an aspect, low SNR operation may be supported by transmitting data on a second physical channel that can be reliably received at a second minimum SNR that is lower than the first minimum SNR. In another aspect, low SNR operation may be supported by transmitting data on both the first and second physical channels. In yet another aspect, low SNR operation may be supported by transmitting data in multiple instances of the first and/or second physical channel. In yet another aspect, low power operation may be supported by transmitting the second physical channel in a portion of the system bandwidth instead of across the entire system bandwidth.

    摘要翻译: 描述了用于支持无线网络中的无线设备的通信的技术。 无线网络可以支持具有用于可靠接收的第一最小SNR的第一物理信道。 一些无线设备可能需要以较低的SNR进行操作。 在一方面,可以通过在低于第一最小SNR的第二最小SNR可靠地接收的第二物理信道上发送数据来支持低SNR操作。 在另一方面,可以通过在第一和第二物理信道上发送数据来支持低SNR操作。 在另一方面,可以通过在第一和/或第二物理信道的多个实例中发送数据来支持低SNR操作。 在另一方面,可以通过在系统带宽的一部分中而不是跨整个系统带宽发送第二物理信道来支持低功率操作。

    Method and apparatus for mutiplexing reference signal and data in a wireless communication system
    52.
    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)。

    Method and apparatus for supporting communication in low SNR scenario
    53.
    发明授权
    Method and apparatus for supporting communication in low SNR scenario 有权
    用于支持低SNR场景中通信的方法和装置

    公开(公告)号:US09094991B2

    公开(公告)日:2015-07-28

    申请号:US12729756

    申请日:2010-03-23

    摘要: Techniques for supporting communication for wireless devices in a wireless network are described. The wireless network may support a first physical channel having a first minimum SNR for reliable reception. Some wireless devices may require operation at a lower SNR. In an aspect, low SNR operation may be supported by transmitting data on a second physical channel that can be reliably received at a second minimum SNR that is lower than the first minimum SNR. In another aspect, low SNR operation may be supported by transmitting data on both the first and second physical channels. In yet another aspect, low SNR operation may be supported by transmitting data in multiple instances of the first and/or second physical channel. In yet another aspect, low power operation may be supported by transmitting the second physical channel in a portion of the system bandwidth instead of across the entire system bandwidth.

    摘要翻译: 描述了用于支持无线网络中的无线设备的通信的技术。 无线网络可以支持具有用于可靠接收的第一最小SNR的第一物理信道。 一些无线设备可能需要以较低的SNR进行操作。 在一方面,可以通过在低于第一最小SNR的第二最小SNR可靠地接收的第二物理信道上发送数据来支持低SNR操作。 在另一方面,可以通过在第一和第二物理信道上发送数据来支持低SNR操作。 在另一方面,可以通过在第一和/或第二物理信道的多个实例中发送数据来支持低SNR操作。 在另一方面,可以通过在系统带宽的一部分中而不是跨整个系统带宽发送第二物理信道来支持低功率操作。

    Synchronization of devices in a wireless communication network
    54.
    发明授权
    Synchronization of devices in a wireless communication network 有权
    无线通信网络中设备的同步

    公开(公告)号:US09042296B2

    公开(公告)日:2015-05-26

    申请号:US12841051

    申请日:2010-07-21

    IPC分类号: H04W56/00 H04W92/20

    摘要: Techniques for synchronizing devices in a wireless network are described. In an aspect, a device determines a receive time for a base station, obtains a time offset for the base station from a network entity, and sets its transmit time based on the receive time and the time offset for the base station. The time offset compensates for the degree by which the base station is asynchronous with respect to a reference time, e.g., UTC time. In another aspect, a device determines and sends time difference information (e.g., a time offset or a TDOA measurement) for at least one base station to support synchronization of other devices. In yet another aspect, a network entity supports synchronization of devices, receives time difference information for at least one base station, and determines at least one time offset for the at least one base station based on the time difference information.

    摘要翻译: 描述了用于在无线网络中同步设备的技术。 在一方面,设备确定基站的接收时间,从网络实体获得基站的时间偏移,并且基于基站的接收时间和时间偏移来设置其发送时间。 时间偏移补偿基站相对于参考时间(例如,UTC时间)是异步的程度。 在另一方面,设备确定并发送至少一个基站的时差信息(例如,时间偏移或TDOA测量)以支持其他设备的同步。 在另一方面,网络实体支持设备的同步,接收至少一个基站的时差信息,并且基于时差信息确定至少一个基站的至少一个时间偏移量。

    Method and apparatus for conducting measurements when multiple carriers are supported
    55.
    发明授权
    Method and apparatus for conducting measurements when multiple carriers are supported 有权
    支持多个载体时进行测量的方法和装置

    公开(公告)号:US08638682B2

    公开(公告)日:2014-01-28

    申请号:US12895665

    申请日:2010-09-30

    摘要: Measurements are conducted on one or more carriers in a case where an access terminal supports reception on multiple carriers. Upon determining that an access terminal is capable of concurrently receiving on a given set of carriers, a measurement is conducted on one or more carriers of the set while receiving on or more other carriers of the set. Conversely, upon determining that an access terminal is not capable of concurrently receiving on a given set of carriers, a measurement is conducted on one or more carriers of the set while not receiving on or more other carriers of the set. In addition, data transfers to or from an access terminal on a carrier may be restricted (e.g., data transfers not scheduled or only low priority data transfers scheduled) during one or more subframes before or after the access terminal conducts a measurement on another carrier.

    摘要翻译: 在接入终端支持在多个载波上接收的情况下,对一个或多个载波进行测量。 在确定接入终端能够在给定的一组载波上同时接收时,对该组的一个或多个载波进行测量,同时在该组的多个其它载波上接收。 相反,在确定接入终端不能在给定的一组载波上同时接收时,对该组的一个或多个载波进行测量,而不接收该组的多个其它载波。 此外,在接入终端在另一个载波上进行测量之前或之后的一个或多个子帧期间,可能会限制(或者从载波上的接入终端)到数据传输或从载波上的接入终端的数据传输(例如,未调度的数据传输或仅调度低优先级数据传输)。

    Peak-to-average power ratio (PAPR) reduction scheme for wireless communication
    56.
    发明授权
    Peak-to-average power ratio (PAPR) reduction scheme for wireless communication 失效
    无线通信的峰均功率比(PAPR)降低方案

    公开(公告)号:US08571000B2

    公开(公告)日:2013-10-29

    申请号:US12536620

    申请日:2009-08-06

    IPC分类号: H04L27/28

    CPC分类号: H04L27/2621

    摘要: Techniques for sending a transmission in a manner to reduce peak-to-average power ratio (PAPR) of the transmission are described. A transmitter may select phases for a plurality of resource blocks based on a metric, e.g., PAPR. The transmitter may apply the selected phases to modulation symbols to be sent on the resource blocks. In one design, the transmitter may select one phase for each resource block and may apply the phase to all modulation symbols to be sent on the resource block. In another design, the transmitter may select multiple phases for multiple spatial layers in each resource block, one phase for each spatial layer. The transmitter may then apply each phase to all modulation symbols to be sent on one spatial layer in one resource block. For both designs, the transmitter may generate at least one OFDM symbol or at least one SC-FDMA symbol based on the modulation symbols after applying the selected phases.

    摘要翻译: 描述以减少传输的峰均功率比(PAPR)的方式发送传输的技术。 发射机可以基于诸如PAPR的度量来为多个资源块选择相位。 发射机可以将所选择的相位应用于在资源块上发送的调制符号。 在一种设计中,发射机可以为每个资源块选择一个相位,并且可以将该相位应用于要在资源块上发送的所有调制符号。 在另一种设计中,发射机可以为每个资源块中的多个空间层选择多个相位,每个空间层的一个相位。 然后,发射机可以将每个相位应用于在一个资源块中的一个空间层上发送的所有调制符号。 对于这两种设计,发射机可以在应用所选择的相位之后基于调制符号生成至少一个OFDM符号或至少一个SC-FDMA符号。

    SYSTEM, APPARATUS, AND METHOD FOR REPEATER PILOT SIGNAL GENERATION IN WIRELESS COMMUNICATION SYSTEMS
    57.
    发明申请
    SYSTEM, APPARATUS, AND METHOD FOR REPEATER PILOT SIGNAL GENERATION IN WIRELESS COMMUNICATION SYSTEMS 有权
    无线通信系统中重复引导信号发生的系统,设备和方法

    公开(公告)号:US20130089021A1

    公开(公告)日:2013-04-11

    申请号:US13269354

    申请日:2011-10-07

    IPC分类号: H04B7/14

    CPC分类号: H04B7/155

    摘要: In accordance with aspects of the disclosure, a method, apparatus, and computer program product for wireless communication comprises receiving a remote signal via a donor antenna of a repeater, generating an amplified signal by amplifying the received remote signal, generating an auxiliary pilot signal by a translation of the amplified signal for estimating channel feedback, wherein the auxiliary pilot signal is substantially uncorrelated to the amplified signal, and generating a transmit signal for transmitting by combining the auxiliary pilot signal with the amplified signal.

    摘要翻译: 根据本公开的方面,用于无线通信的方法,装置和计算机程序产品包括经由中继器的施主天线接收远程信号,通过放大所接收的远程信号来产生放大信号,通过以下方式产生辅助导频信号: 用于估计信道反馈的放大信号的转换,其中辅助导频信号与放大信号基本上不相关,并且通过将辅助导频信号与放大信号组合来产生发射信号。

    Method and Apparatus for Sending and Receiving a Low-Complexity Transmission in a Wireless Communication System
    58.
    发明申请
    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:US20110194510A1

    公开(公告)日:2011-08-11

    申请号:US13022328

    申请日:2011-02-07

    IPC分类号: H04W72/04

    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 MUTIPLEXING REFERENCE SIGNAL AND DATA IN A WIRELESS COMMUNICATION SYSTEM
    59.
    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 THAT FACILITATES INTERFERENCE REDUCTION IN WIRELESS SYSTEMS
    60.
    发明申请
    METHOD AND APPARATUS THAT FACILITATES INTERFERENCE REDUCTION IN WIRELESS SYSTEMS 审中-公开
    在无线系统中减少干扰的方法和装置

    公开(公告)号:US20170026977A1

    公开(公告)日:2017-01-26

    申请号:US15283235

    申请日:2016-09-30

    IPC分类号: H04W72/08 H04W72/04

    摘要: Techniques for managing interference in a wireless communication system are disclosed. In one aspect, one or more frequencies are identified, where transmission by a user equipment (UE) on the one or more frequencies would interfere with reception at the UE. An indication is transmitted to a base station which comprises frequency location information based on the one or more frequencies. Additionally, the UE can receive an assignment of frequency resources from the based station based on the indication.

    摘要翻译: 公开了一种用于管理无线通信系统中的干扰的技术。 在一个方面,识别一个或多个频率,其中在一个或多个频率上的用户设备(UE)的传输将干扰UE处的接收。 一个指示被发送到基站,该基站包括基于一个或多个频率的频率位置信息。 另外,UE可以基于该指示从基站接收频率资源的分配。