Method and Apparatus for Sending and Receiving a Low-Complexity Transmission in a Wireless Communication System
    31.
    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 THAT FACILITATES A TIMING ALIGNMENT IN A MULTICARRIER SYSTEM
    32.
    发明申请
    METHOD AND APPARATUS THAT FACILITATES A TIMING ALIGNMENT IN A MULTICARRIER SYSTEM 有权
    在多媒体系统中使时序对齐的方法和装置

    公开(公告)号:US20110158116A1

    公开(公告)日:2011-06-30

    申请号:US12818064

    申请日:2010-06-17

    IPC分类号: H04W56/00 H04W72/04 H04L12/26

    CPC分类号: H04W56/0045

    摘要: Aspects are disclosed for facilitating a timing alignment in a multicarrier system. In one aspect, at least one downlink timing associated with at least one downlink carrier is determined, and an uplink timing associated with an uplink group of carriers is ascertained based on at least one downlink timing and a timing offset associated with the uplink group of carriers. Each of the uplink group of carriers is then transmitted within a threshold value of the uplink timing. In another aspect, a downlink communication is transmitted to a wireless terminal via at least one downlink carrier. This embodiment further includes assigning a timing offset to an uplink group of carriers, and providing the timing offset to the wireless terminal via the at least one downlink carrier. An uplink communication is then received via the uplink group of carriers according to the timing offset.

    摘要翻译: 公开了用于促进多载波系统中的定时对准的方面。 在一个方面,确定与至少一个下行链路载波相关联的至少一个下行链路定时,并且基于与上行链路群组相关联的至少一个下行链路定时和定时偏移来确定与载波的上行链路组相关联的上行链路定时 。 然后在上行链路定时的阈值内发送每个上行链路载波组。 另一方面,经由至少一个下行链路载波将下行链路通信发送到无线终端。 该实施例还包括向上行链路群组分配定时偏移,以及经由至少一个下行链路载波向无线终端提供定时偏移。 然后,根据定时偏移,经由上行链路群组接收上行链路通信。

    METHOD AND APPARATUS FOR MUTIPLEXING REFERENCE SIGNAL AND DATA IN A WIRELESS COMMUNICATION SYSTEM
    33.
    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)。

    TIMING ADJUSTMENT FOR SYNCHRONOUS OPERATION IN A WIRELESS NETWORK
    34.
    发明申请
    TIMING ADJUSTMENT FOR SYNCHRONOUS OPERATION IN A WIRELESS NETWORK 有权
    在无线网络中进行同步操作的时序调整

    公开(公告)号:US20100222068A1

    公开(公告)日:2010-09-02

    申请号:US12712755

    申请日:2010-02-25

    IPC分类号: H04W72/00

    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。

    METHOD AND APPARATUS THAT FACILITATES INTERFERENCE REDUCTION IN WIRELESS SYSTEMS
    35.
    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。

    Method and apparatus that facilitates interference reduction in wireless systems
    36.
    发明授权
    Method and apparatus that facilitates interference reduction in wireless systems 有权
    有助于无线系统中的干扰减少的方法和装置

    公开(公告)号:US09509543B2

    公开(公告)日:2016-11-29

    申请号:US12824123

    申请日:2010-06-25

    IPC分类号: H04L27/26 H04L25/02 H04W4/00

    摘要: Techniques for managing interference in a wireless communication system are disclosed. In one aspect, an estimated interference associated with data transmission over a plurality of subcarriers on an uplink is determined The estimated interference may relate to intermodulation products associated with a parallel transmission over the plurality of subcarriers. Based at least partly on the estimated interference, data received on the downlink can be processed, and subcarriers can be selected for data transmission on the uplink. Additionally, resources can be assigned to a wireless device according to the estimated interference.

    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,确定与在上行链路上的多个子载波上的数据传输相关联的估计干扰。估计的干扰可以涉及与多个子载波上的并行传输相关联的互调产物。 至少部分地基于估计的干扰,可以处理在下行链路上接收的数据,并且可以选择副载波用于上行链路上的数据传输。 另外,可以根据估计的干扰将资源分配给无线设备。

    Asynchronous time division duplex operation in a wireless network
    37.
    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。

    METHOD AND APPARATUS THAT FACILITATES INTERFERENCE REDUCTION IN WIRELESS SYSTEMS
    38.
    发明申请
    METHOD AND APPARATUS THAT FACILITATES INTERFERENCE REDUCTION IN WIRELESS SYSTEMS 有权
    在无线系统中减少干扰的方法和装置

    公开(公告)号:US20110158211A1

    公开(公告)日:2011-06-30

    申请号:US12824123

    申请日:2010-06-25

    IPC分类号: H04L27/28 H04W84/02

    摘要: Techniques for managing interference in a wireless communication system are disclosed. In one aspect, an estimated interference associated with data transmission over a plurality of subcarriers on an uplink is determined The estimated interference may relate to intermodulation products associated with a parallel transmission over the plurality of subcarriers. Based at least partly on the estimated interference, data received on the downlink can be processed, and subcarriers can be selected for data transmission on the uplink. Additionally, resources can be assigned to a wireless device according to the estimated interference.

    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,确定与在上行链路上的多个子载波上的数据传输相关联的估计干扰。估计的干扰可以涉及与多个子载波上的并行传输相关联的互调产物。 至少部分地基于估计的干扰,可以处理在下行链路上接收的数据,并且可以选择副载波用于上行链路上的数据传输。 另外,可以根据估计的干扰将资源分配给无线设备。

    CELL RESELECTION ENHANCEMENT
    39.
    发明申请
    CELL RESELECTION ENHANCEMENT 失效
    细胞评估增强

    公开(公告)号:US20110110254A1

    公开(公告)日:2011-05-12

    申请号:US12941505

    申请日:2010-11-08

    IPC分类号: H04W36/30 H04W24/00

    摘要: Methods and apparatuses are provided that facilitate measuring frequencies for cell reselection. A base station providing a cell can be interfered by one or more closed subscriber group (CSG) cells over at least a portion of frequency utilized by the base station to serve one or more devices. The base station can determine and provide one or more parameters related to performing a measurement of a system bandwidth to one or more devices that are within range of the one or more CSG cells that includes at least a portion of the bandwidth utilized by the one or more CSG cells. The one or more devices can accordingly perform measurements of the system bandwidth of the base station for determining one or more communication metrics related to performing reselection and/or measuring other frequencies for reselection. The measurement can relate to a wideband measurement, a plurality of narrowband measurements, etc.

    摘要翻译: 提供了便于测量细胞再选择频率的方法和装置。 提供小区的基站可以被一个或多个封闭用户组(CSG)小区干扰在基站所使用的频率的至少一部分上,以服务于一个或多个设备。 该基站可以确定和提供一个或多个参数,该参数与对一个或多个CSG小区的范围内的一个或多个设备进行系统带宽的测量相关,所述一个或多个设备包括一个或多个CSG小区利用的带宽的至少一部分, 更多的CSG小区。 一个或多个设备可以相应地执行基站的系统带宽的测量,以确定与执行重新选择相关的一个或多个通信度量和/或测量用于重选的其它频率。 测量可以涉及宽带测量,多个窄带测量等。

    METHOD AND APPARATUS FOR SUPPORTING USER EQUIPMENTS ON DIFFERENT SYSTEM BANDWIDTHS
    40.
    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。