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    Physical layer encryption for MIMO communication networks
    2.
    发明授权
    Physical layer encryption for MIMO communication networks 有权
    MIMO通信网络的物理层加密

    公开(公告)号：US09351156B2

    公开(公告)日：2016-05-24

    申请号：US13954494

    申请日：2013-07-30

    Applicant: Broadcom Corporation

    Inventor： Sam Alex ,  Louay Jalloul

    IPC: H04W4/00 ,  H04W12/02 ,  H04B7/06 ,  H04W88/08

    CPC classification number: H04W12/02 ,  H04B7/0617 ,  H04B7/0619 ,  H04W88/08

    Abstract: Systems and methods are provided for encrypting a data transmission from a base station at the physical layer, such that the data transmission can only be decoded successfully by an intended UE. In an embodiment, a desired signal component, including a data signal for an intended UE, is combined with an interference component to generate a signal for transmission. The interference component is designed such that it falls in a null space of the channel from the base station to the intended UE and is therefore not received by the intended UE. In contrast, for an unintended UE, the interference component is designed to interfere with the desired signal component at the unintended UE, preventing the unintended UE from successfully decoding the data transmission.

    Abstract translation: 提供了用于加密来自物理层的基站的数据传输的系统和方法，使得数据传输只能由目标UE成功解码。 在一个实施例中，包括用于预期UE的数据信号的期望信号分量与干扰分量组合以产生用于传输的信号。 干扰分量被设计为使得它落入从基站到目标UE的信道的零空间中，因此不被预期的UE接收。 相比之下，对于非预期的UE，干扰分量被设计为干扰非预期UE处的期望信号分量，从而防止非预期的UE成功解码数据传输。

    METHODS OF ANTENNA SYSTEM CONTROL IN MASSIVE MIMO SYSTEMS
    4.
    发明申请
    METHODS OF ANTENNA SYSTEM CONTROL IN MASSIVE MIMO SYSTEMS 审中-公开
    大规模MIMO系统中天线系统控制的方法

    公开(公告)号：US20150085944A1

    公开(公告)日：2015-03-26

    申请号：US14037903

    申请日：2013-09-26

    Applicant: Broadcom Corporation

    Inventor： Amin MOBASHER ,  Sam Alex ,  Louay Jalloul

    IPC: H04B7/04

    CPC classification number: H04B7/0691 ,  H04B7/0413

    Abstract: A multiple input multiple output (MIMO) antenna system is implemented for communications in a wireless device. Information regarding the environment surrounding the wireless device may be used to determine which of the MIMO antennas are selected such that communications performance is improved. Metrics related to signal transmission and reception by the wireless device may be monitored and used to determine which MIMO antennas are selected. The metrics may be measured by any of the MIMO antennas at any time, including antennas currently engaged or not engaged in active communications. The metrics may be used in lieu of sensors to supplement or replace wireless device functionality otherwise provided by the sensors.

    Abstract translation: 多输入多输出（MIMO）天线系统被实现用于无线设备中的通信。 可以使用关于无线设备周围的环境的信息来确定哪个MIMO天线被选择以提高通信性能。 可以监视与无线设备的信号发送和接收相关的度量，并用于确定哪些MIMO天线被选择。 任何时间可以由任何MIMO天线测量度量，包括当前接合或未参与主动通信的天线。 可以使用度量来代替传感器来补充或替代由传感器提供的无线设备功能。

    Reference Signal Design for Massive MIMO Communication
    6.
    发明申请
    Reference Signal Design for Massive MIMO Communication 有权
    大规模MIMO通信的参考信号设计

    公开(公告)号：US20140161205A1

    公开(公告)日：2014-06-12

    申请号：US13839544

    申请日：2013-03-15

    Applicant: BROADCOM CORPORATION

    Inventor： Louay Jalloul ,  Amin Mobasher ,  Sirikiat Ariyavisitakul

    IPC: H04L27/26

    CPC classification number: H04L27/2613 ,  H04L5/0016 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0051 ,  H04L5/12

    Abstract: The present disclosure is directed to a system and method for extending a reference signal pattern to define additional reference signals using a phase division multiplexing (PDM) technique. The reference signal pattern can be a predefined reference signal pattern in a wireless communication standard and can be extended to support massive MIMO communication.

    Abstract translation: 本公开涉及一种用于使用相位复用（PDM）技术来扩展参考信号模式以定义附加参考信号的系统和方法。 参考信号模式可以是无线通信标准中的预定参考信号模式，并且可以被扩展以支持大量MIMO通信。

    Reducing Complexity and Power Consumption in Cellular Networks with Carrier Aggregation
    7.
    发明申请
    Reducing Complexity and Power Consumption in Cellular Networks with Carrier Aggregation 有权
    用载波聚合降低蜂窝网络的复杂度和功耗

    公开(公告)号：US20130242784A1

    公开(公告)日：2013-09-19

    申请号：US13837862

    申请日：2013-03-15

    Applicant: BROADCOM CORPORATION

    Inventor： Djordje TUJKOVIC ,  Louay Jalloul ,  Robert Lorenz

    IPC: H04W24/02

    CPC classification number: H04W24/02 ,  H04L5/001 ,  H04L5/003 ,  H04L5/0091

    Abstract: In a communications network with carrier aggregation (CA), embodiments enable the network to advertise to a supported wireless device not only whether or not aggregated component carriers allocated to the wireless are intra-band adjacent but farther whether or not the allocated component carriers are collocated. Embodiments further enable the wireless to advertise its CA capabilities including the support of adjacent collocated CA and/or non-adjacent collocated CA. Embodiments thus provide systems/methods for the exploitation of special conditions provided by adjacent collocated component carriers to reduce processing complexity and power consumption for certain types of wireless device transmitter/receiver architectures and to support intra-band adjacent CA for other types of UE transmitter/receiver architectures.

    Abstract translation: 在具有载波聚合（CA）的通信网络中，实施例使得网络能够向被支持的无线设备通告，不仅分配给无线的聚合分量载波是否是带内相邻的，而且分配的分量载波是否并置 。 实施例还使得无线能够通告其CA能力，包括相邻并置CA和/或非相邻并置CA的支持。 因此，实施例提供了用于利用由相邻并置分量载波提供的特殊条件的系统/方法，以降低某些类型的无线设备发射机/接收机架构的处理复杂度和功耗，并支持用于其他类型的UE发射机/ 接收机架构。

    Method for scanning in a multi-mode multi-antenna device
    8.
    发明授权
    Method for scanning in a multi-mode multi-antenna device 有权
    用于在多模式多天线装置中进行扫描的方法

    公开(公告)号：US09241300B2

    公开(公告)日：2016-01-19

    申请号：US14206009

    申请日：2014-03-12

    Applicant: Broadcom Corporation

    Inventor： Louay Jalloul ,  Mohamed Mostafa

    IPC: H04B7/00 ,  H04B1/40 ,  H04B1/18 ,  H04M1/00 ,  H04W48/16 ,  H04B7/08 ,  H04W36/00 ,  H04W88/06 ,  H03L7/23 ,  H03L7/197

    CPC classification number: H04W48/16 ,  H03L7/1974 ,  H03L7/23 ,  H04B7/0805 ,  H04B7/0871 ,  H04W36/0022 ,  H04W88/06

    Abstract: A method and system are provided in which a device comprising a first or main phase locked loop (PLL) and a second or reference PLL, is operable to communicate utilizing a first and a second receiving antenna. The first PLL may generate a first signal based on a reference signal generated by the second PLL. A second signal may also be generated based on the reference signal. Data associated with a first radio access technology (RAT) may be received via the first receiving antenna utilizing the generated first signal. The first RAT or another RAT may be scanned via the second receiving antenna utilizing the generated second signal. The scan via the second receiving antenna may be performed concurrently with the reception of data via the first receiving antenna. A switch may be utilized to enable or disable scanning operations via the second receiving antenna.

    Abstract translation: 提供了一种方法和系统，其中包括第一或主锁相环（PLL）和第二或参考PLL的装置可操作以利用第一和第二接收天线进行通信。 第一PLL可以基于由第二PLL产生的参考信号产生第一信号。 也可以基于参考信号产生第二信号。 可以利用所生成的第一信号经由第一接收天线来接收与第一无线电接入技术（RAT）相关联的数据。 利用所生成的第二信号可以经由第二接收天线扫描第一RAT或另一RAT。 经由第二接收天线的扫描可以经由第一接收天线与数据的接收同时执行。 可以利用开关来启用或禁用经由第二接收天线的扫描操作。

    Small Cell Base Station DTX Mode
    9.
    发明申请
    Small Cell Base Station DTX Mode 审中-公开
    小型基站DTX模式

    公开(公告)号：US20150351154A1

    公开(公告)日：2015-12-03

    申请号：US14823576

    申请日：2015-08-11

    Applicant: Broadcom Corporation

    Inventor： Sam ALEX ,  Louay Jalloul

    IPC: H04W76/04 ,  H04W24/10 ,  H04W72/04 ,  H04W16/32

    CPC classification number: H04W72/0413 ,  H04W16/32 ,  H04W24/02 ,  H04W24/10 ,  H04W76/28 ,  H04W84/045

    Abstract: The present disclosure is directed to a system and method for transitioning small cell base stations out of a discontinuous transmission (DTX) mode. The system and method comprise monitoring at the small cell base stations uplink transmissions from user terminals (UTs) to a macrocell base station while the small cell base stations are in the DTX mode. The small cell base stations can use the monitored uplink transmissions to, for example, measure received power levels from the UTs and/or measure uplink path losses between the small cell base stations and the UTs. The small cell base stations can report these measured values back to the macrocell base station through a backhaul network. Based on these measurements, the macrocell base station can determine which small cell base stations can support which UTs without transitioning the small cell base stations out of the DTX mode.

    Abstract translation: 本公开涉及用于从不连续传输（DTX）模式转换小型小区基站的系统和方法。 该系统和方法包括在小型小区基站处于DTX模式时，在小型小区基站上进行从用户终端（UT）到宏小区基站的上行链路传输的监视。 小小区基站可以使用所监视的上行链路传输来例如测量来自UT的接收功率电平和/或测量小小区基站和UT之间的上行链路路径损耗。 小型小区基站可以通过回程网络将这些测量值报告回宏小区基站。 基于这些测量，宏小区基站可以确定哪些小小区基站可以支持哪些UT，而不会将小小区基站转移到DTX模式之外。

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