"> DOWNLINK TRANSMISSION IN A MULTIPLE-USER MULTIPLE-INPUT MULTIPLE-OUTPUT (
    3.
    发明申请
    DOWNLINK TRANSMISSION IN A MULTIPLE-USER MULTIPLE-INPUT MULTIPLE-OUTPUT ("MU-MIMO") WIRELESS COMMUNICATION SYSTEM 有权
    多用户多输入多输出(“MU-MIMO”)无线通信系统中的下行链路传输

    公开(公告)号:US20110176629A1

    公开(公告)日:2011-07-21

    申请号:US12689223

    申请日:2010-01-18

    IPC分类号: H04B7/02 H04L27/00

    摘要: Information transmission in a multiple-input multiple-output (“MIMO”) wireless communication system is provided. In one embodiment, a method for transmitting information in a MIMO wireless communication system, comprising updating channel quality information (“CQI”) values of a plurality of wireless devices, wherein updating said CQI values consider the effects of interference from transmissions to those wireless devices associated with a pre-assigned companion codeword set; pairing said plurality of wireless devices using at least said CQI values, a precoding matrix index (“PMI”) value and said pre-assigned companion codeword set, wherein said pre-assigned companion codeword set, pre-assigned companion codewords associated with said pre-assigned companion codeword set and said PMI value are updated for each of said plurality of wireless devices; precoding the information for each of said plurality of wireless devices using said PMI value; and transmitting said precoded information to each of said plurality of wireless devices.

    摘要翻译: 提供了多输入多输出(“MIMO”)无线通信系统中的信息传输。 在一个实施例中,一种用于在MIMO无线通信系统中发送信息的方法,包括更新多个无线设备的信道质量信息(“CQI”)值,其中更新所述CQI值考虑来自传输到那些无线设备的干扰的影响 与预分配的伴随码字集相关联; 使用至少所述CQI值,预编码矩阵索引(“PMI”)值和所述预分配协同码字集合来配对所述多个无线设备,其中所述预分配伴随码字集合,与所述预先分配的伴随码字集相关联的预先分配的伴随码字 为所述多个无线设备中的每一个更新所分配的伴随码字集合和所述PMI值; 使用所述PMI值对所述多个无线设备中的每一个预先编码信息; 以及将所述预编码信息发送到所述多个无线设备中的每一个。

    Method of calculating signal propagation loss and creating a data base therefor
    4.
    发明授权
    Method of calculating signal propagation loss and creating a data base therefor 失效
    计算信号传播损耗并创建数据库的方法

    公开(公告)号:US06289203B1

    公开(公告)日:2001-09-11

    申请号:US09030091

    申请日:1998-02-25

    IPC分类号: H04Q720

    摘要: A method for determining a final propagation loss of a signal transmitted from a transmitter (302) and received at a receiver (303) located in a proximity of a road (340) in a predefined area (350) includes calculating an environmental factor based on a transportation network information associated with predefined area (350), and determining the final propagation loss based on the environmental factor. A method of creating a data base used for calculating the propagation loss includes providing a preliminary data base, calculating a road density constant based on a road profile of predefined area (350), calculating a road constant based on a road classification profile of road (340), calculating the environmental factor by summing the road density constant, and the road constant, and modifying the preliminary data base according to the environmental factor to produce the data base.

    摘要翻译: 一种用于确定从发射机(302)发送并在位于预定区域(350)中的道路(340)附近的接收机(303)处接收的信号的最终传播损耗的方法包括:基于 与预定区域(350)相关联的运输网络信息,以及基于环境因素确定最终传播损耗。 创建用于计算传播损失的数据库的方法包括提供初步数据库,基于预定义区域(350)的道路轮廓计算道路密度常数,基于道路的道路分类轮廓来计算道路常数( 340),通过将道路密度常数和道路常数相加来计算环境因子,并根据环境因素修改初步数据库以产生数据库。

    System and method for interference mitigation in a wireless communications system
    5.
    发明授权
    System and method for interference mitigation in a wireless communications system 有权
    无线通信系统中干扰减轻的系统和方法

    公开(公告)号:US09026124B2

    公开(公告)日:2015-05-05

    申请号:US12748128

    申请日:2010-03-26

    CPC分类号: H04W16/12

    摘要: A system and method for interference mitigation in a wireless communications system are provided. A method for interference mitigation in a controller includes coordinating with other controllers to establish a cooperative agreement, receiving information from a communications device served by the controller, scheduling a transmission opportunity for the communications device based on an indicator and the cooperative agreement, and receiving a transmission from the communications device at the scheduled transmission opportunity.

    摘要翻译: 提供了一种用于无线通信系统中的干扰减轻的系统和方法。 一种用于控制器中的干扰减轻的方法包括与其他控制器协调以建立协作协议,从由控制器服务的通信设备接收信息,基于指示符和协议协议调度通信设备的传输机会,以及接收 在预定传输时机从通信设备传输。

    Method of Resource Allocation and Signaling for Aperiodic Channel Sounding
    7.
    发明申请
    Method of Resource Allocation and Signaling for Aperiodic Channel Sounding 审中-公开
    资源分配和非周期通道探测信号的方法

    公开(公告)号:US20130194908A1

    公开(公告)日:2013-08-01

    申请号:US13814848

    申请日:2010-08-13

    IPC分类号: H04W72/04

    摘要: A method for resource allocation. The method includes signaling a set of SRS subframes in which an SRS can be transmitted, wherein a UE not capable of aperiodic SRS transmission can be instructed to transmit periodic SRS in any of the SRS subframes. The method further includes signaling which of the SRS subframes are to be used for periodic SRS transmissions and which are to be used for aperiodic SRS transmissions, wherein a periodic SRS transmission is an SRS transmission that is transmitted by a UE in a first subframe, the first subframe being determined at least by the subframe in which the UE transmitted a previous SRS and an SRS periodicity, and wherein an aperiodic SRS transmission is an SRS transmission that is transmitted by a UE in a second subframe, the second subframe being determined at least by a transmission on a physical control channel to the UE.

    摘要翻译: 资源分配方法。 该方法包括发送一组可以发送SRS的SRS子帧的集合,其中可以指示不能进行非周期性SRS传输的UE能够在任何一个SRS子帧中发送周期性SRS。 该方法进一步包括:将SRS子帧中的哪一个用于周期性SRS传输,哪些用于非周期性SRS传输,其中周期性SRS传输是在第一子帧中由UE传输的SRS传输, 第一子帧至少由UE发送先前SRS的子帧和SRS周期确定,并且其中非周期性SRS传输是由UE在第二子帧中发送的SRS传输,第二子帧至少被确定 通过物理控制信道上的传输到UE。

    Downlink transmission in a multiple-user multiple-input multiple-output (“MU-MIMO”) wireless communication system
    8.
    发明授权
    Downlink transmission in a multiple-user multiple-input multiple-output (“MU-MIMO”) wireless communication system 有权
    多用户多输入多输出(MU-MIMO)无线通信系统中的下行链路传输

    公开(公告)号:US08406332B2

    公开(公告)日:2013-03-26

    申请号:US12689223

    申请日:2010-01-18

    IPC分类号: H04B7/02

    摘要: Information transmission in a multiple-input multiple-output (“MIMO”) wireless communication system is provided. In one embodiment, a method for transmitting information in a MIMO wireless communication system, comprising updating channel quality information (“CQI”) values of a plurality of wireless devices, wherein updating said CQI values consider the effects of interference from transmissions to those wireless devices associated with a pre-assigned companion codeword set; pairing said plurality of wireless devices using at least said CQI values, a precoding matrix index (“PMI”) value and said pre-assigned companion codeword set, wherein said pre-assigned companion codeword set, pre-assigned companion codewords associated with said pre-assigned companion codeword set and said PMI value are updated for each of said plurality of wireless devices; precoding the information for each of said plurality of wireless devices using said PMI value; and transmitting said precoded information to each of said plurality of wireless devices.

    摘要翻译: 提供了一种多输入多输出(MIMO)无线通信系统中的信息传输。 在一个实施例中,一种用于在MIMO无线通信系统中发送信息的方法,包括更新多个无线设备的信道质量信息(CQI)值,其中更新所述CQI值考虑来自传输的干扰对那些与 预分配的伴随码字集合; 使用至少所述CQI值,预编码矩阵索引(PMI)值和所述预分配伴随码字集合来配对所述多个无线设备,其中所述预分配伴随码字集合,与所述预分配的相关联的预分配伴随码字 对于所述多个无线设备中的每一个更新伴随码字集合和所述PMI值; 使用所述PMI值对所述多个无线设备中的每一个预先编码信息; 以及将所述预编码信息发送到所述多个无线设备中的每一个。

    Frequency-Hopping Method for LTE Aperiodic Sounding Reference Signals
    10.
    发明申请
    Frequency-Hopping Method for LTE Aperiodic Sounding Reference Signals 审中-公开
    LTE非周期性探测参考信号的跳频方法

    公开(公告)号:US20120113967A1

    公开(公告)日:2012-05-10

    申请号:US13248149

    申请日:2011-09-29

    IPC分类号: H04B1/713 H04W92/00

    摘要: Methods and apparatus are provided to enable aperiodic sounding reference signaling including frequency hopping through the use of additional RRC configuration. The methods can require little or no additional L1 overhead to support narrowband frequency hopping for aperiodic sounding transmissions. In some embodiments, an approach is provided for extending an LTE periodic sounding reference signal methodology to include aperiodic sounding. One benefit of the proposed technique is that it enables each UE to perform aperiodic channel sounding in sounding subframes, using a frequency-hopping pattern, in which the sounding bandwidth of the UE can be narrowed appropriately to match its link capability. Additional benefits of the new approach include better resource utilization, lower signaling overhead, faster channel information update rates, and lower blocking probabilities.

    摘要翻译: 提供了方法和装置,以使得能够通过使用附加的RRC配置来进行非周期性的探测参考信号,包括跳频。 这些方法可能需要很少的或没有额外的L1开销来支持非周期性发声传输的窄带跳频。 在一些实施例中,提供了一种用于将LTE周期性探测参考信号方法扩展以包括非周期性探测的方法。 所提出的技术的一个好处在于,它使得每个UE能够使用跳频模式来执行在探测子帧中的非周期信道探测,其中可以适当地缩小UE的探测带宽以匹配其链路能力。 新方法的另外的好处包括更好的资源利用率,较低的信令开销,更快的信道信息更新速率和更低的阻塞概率。