METHOD AND APPARATUS FOR SUPPORTING USER EQUIPMENTS ON DIFFERENT SYSTEM BANDWIDTHS
    2.
    发明申请
    METHOD AND APPARATUS FOR SUPPORTING USER EQUIPMENTS ON DIFFERENT SYSTEM BANDWIDTHS 有权
    支持用户设备对不同系统带宽的方法和设备

    公开(公告)号:US20110085457A1

    公开(公告)日:2011-04-14

    申请号:US12756847

    申请日:2010-04-08

    IPC分类号: H04L12/26 H04W72/04

    摘要: Techniques for supporting communication for different user equipments (UEs) on different system bandwidths are described. In one design, a base station transmits first control information to support communication for at least one first UE on a first system bandwidth and transmits second control information to support communication for at least one second UE on a second system bandwidth, which overlaps the first system bandwidth. The base station transmits data to the first and second UEs on the first and second system bandwidths, respectively. In one design, the base station receives third control information from the first UE(s) and fourth control information from the second UE(s) on a third system bandwidth. The base station receives data from the first UE(s) on the third system bandwidth and receives data from the second UE(s) on a fourth system bandwidth, which overlaps the third system bandwidth.

    摘要翻译: 描述了用于支持在不同系统带宽上的不同用户设备(UE)的通信的技术。 在一种设计中,基站发送第一控制信息以支持在第一系统带宽上的至少一个第一UE的通信,并且发送第二控制信息以支持在与第一系统重叠的第二系统带宽上的至少一个第二UE的通信 带宽。 基站分别在第一和第二系统带宽上向第一和第二UE发送数据。 在一种设计中,基站在第三系统带宽上从第一UE接收第三控制信息和来自第二UE的第四控制信息。 基站在第三系统带宽上从第一UE接收数据,并且在与第三系统带宽重叠的第四系统带宽上从第二UE接收数据。

    PEAK-TO-AVERAGE POWER RATIO (PAPR) REDUCTION SCHEME FOR WIRELESS COMMUNICATION
    3.
    发明申请
    PEAK-TO-AVERAGE POWER RATIO (PAPR) REDUCTION SCHEME FOR WIRELESS COMMUNICATION 失效
    平均功率比(PAPR)减少无线通信方案

    公开(公告)号:US20100034186A1

    公开(公告)日:2010-02-11

    申请号:US12536620

    申请日:2009-08-06

    IPC分类号: H04L27/28 H04B7/208

    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。

    Method and apparatus for mutiplexing reference signal and data in a wireless communication system
    4.
    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)。

    Peak-to-average power ratio (PAPR) reduction scheme for wireless communication
    5.
    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。

    METHOD AND APPARATUS FOR MUTIPLEXING REFERENCE SIGNAL AND DATA IN A WIRELESS COMMUNICATION SYSTEM
    6.
    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)。

    ASYNCHRONOUS TIME DIVISION DUPLEX OPERATION IN A WIRELESS NETWORK
    7.
    发明申请
    ASYNCHRONOUS TIME DIVISION DUPLEX OPERATION IN A WIRELESS NETWORK 有权
    无线网络中的异步时分双工操作

    公开(公告)号:US20110176435A1

    公开(公告)日:2011-07-21

    申请号:US12841292

    申请日:2010-07-22

    摘要: Techniques for supporting communication in an asynchronous TDD wireless network are described. In an aspect, downlink transmissions and uplink transmissions may be sent on different carriers in an asynchronous TDD wireless network to mitigate interference. In one design, a station (e.g., a base station or a UE) may send a first transmission on a first carrier in a first time period and may receive a second transmission on a second carrier in a second time period. The station may only transmit, or only receive, or neither in each time period. In one design, allocation of carriers for the downlink and uplink may be performed when strong interference is detected, e.g., by a base station or a UE. When strong interference is not detected, the first and second carriers may each be used for both the downlink and uplink.

    摘要翻译: 描述了用于支持异步TDD无线网络中的通信的技术。 在一方面,下行链路传输和上行链路传输可以在异步TDD无线网络中的不同载波上发送以减轻干扰。 在一种设计中,站(例如,基站或UE)可以在第一时间段内在第一载波上发送第一传输,并且可以在第二时间段内在第二载波上接收第二传输。 车站只能在每个时段内传送,也可以只接收。 在一种设计中,例如由基站或UE检测到强干扰时,可以执行用于下行链路和上行链路的载波的分配。 当没有检测到强干扰时,第一和第二载波可以分别用于下行链路和上行链路。

    Asynchronous time division duplex operation in a wireless network
    8.
    发明授权
    Asynchronous time division duplex operation in a wireless network 有权
    无线网络中的异步时分双工操作

    公开(公告)号:US09118468B2

    公开(公告)日:2015-08-25

    申请号:US12841292

    申请日:2010-07-22

    摘要: Techniques for supporting communication in an asynchronous TDD wireless network are described. In an aspect, downlink transmissions and uplink transmissions may be sent on different carriers in an asynchronous TDD wireless network to mitigate interference. In one design, a station (e.g., a base station or a UE) may send a first transmission on a first carrier in a first time period and may receive a second transmission on a second carrier in a second time period. The station may only transmit, or only receive, or neither in each time period. In one design, allocation of carriers for the downlink and uplink may be performed when strong interference is detected, e.g., by a base station or a UE. When strong interference is not detected, the first and second carriers may each be used for both the downlink and uplink.

    摘要翻译: 描述了用于支持异步TDD无线网络中的通信的技术。 在一方面,下行链路传输和上行链路传输可以在异步TDD无线网络中的不同载波上发送以减轻干扰。 在一种设计中,站(例如,基站或UE)可以在第一时间段内在第一载波上发送第一传输,并且可以在第二时间段内在第二载波上接收第二传输。 车站只能在每个时段内传送,也可以只接收。 在一种设计中,例如由基站或UE检测到强干扰时,可以执行用于下行链路和上行链路的载波的分配。 当没有检测到强干扰时,第一和第二载波可以分别用于下行链路和上行链路。

    Multiplexing demodulation reference signals in wireless communications
    10.
    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。