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公开(公告)号：US20140307814A1
公开(公告)日：2014-10-16
申请号：US14042109
申请日：2013-09-30
Applicant: Broadcom Corporation
Inventor： Louay JALLOUL , Sam ALEX , Amin MOBASHER
IPC: H04B7/04
CPC classification number: H04B7/0413 , H04B7/0404 , H04B7/0684 , H04B7/0691 , H04L25/0202 , H04L25/0204 , H04L25/0228
Abstract: Antenna systems and methods for Massive Multi-Input-Multi-Output (MIMO) (M-MIMO) communication are provided. Antennas systems include a M-MIMO transmitter architecture with a hybrid matrix structure. The hybrid matrix structure protects against transmit path component failures and ensures that a spatial rate of the MIMO transmitter is not degraded by the failures. Antenna systems and methods also include antenna selection schemes for selecting a subset of antennas from a plurality of antennas to transmit to a receiver.
Abstract translation: 提供了用于大规模多输入多输出（MIMO）（M-MIMO）通信的天线系统和方法。 天线系统包括具有混合矩阵结构的M-MIMO发射机架构。 混合矩阵结构保护发射路径组件故障，并确保MIMO发射机的空间速率不会由于故障而降级。 天线系统和方法还包括用于从多个天线中选择天线子集以发射到接收机的天线选择方案。
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2.发明申请公开(公告)号：US20130308483A1
公开(公告)日：2013-11-21
申请号：US13947638
申请日：2013-07-22
Applicant: Broadcom Corporation
Inventor： Louay JALLOUL , Sam P. Alex , Soumen Chakraborty , Sindhu Verma , Manish Airy , Anuj Puri
IPC: H04W24/00
Abstract: A method and apparatus of selecting which of a plurality of receiver chains of a mobile unit to receive wireless signals, is disclosed. One method includes measuring a first receive signal quality while all of the plurality of receiver chains are receiving wireless signals, and measuring a second receive signal quality while a subset of the plurality of receiver chains are receiving wireless signals. The subset of the plurality of receiver chains are selected to receive wireless signal unless the first receive signal quality is a threshold better than the second receive signal quality. If the first receive signal quality is a threshold better than the second receive signal quality then all the plurality of receiver chains are selected to receive wireless signals.
Abstract translation: 公开了一种选择移动单元的多个接收机链中的哪一个接收无线信号的方法和装置。 一种方法包括测量第一接收信号质量，同时所有多个接收机链都在接收无线信号，并且在多个接收机链的子集正在接收无线信号的同时测量第二接收信号质量。 选择多个接收机链的子集以接收无线信号，除非第一接收信号质量是比第二接收信号质量好的阈值。 如果第一接收信号质量是比第二接收信号质量好的阈值，则选择所有多个接收机链以接收无线信号。
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公开(公告)号：US20160308589A1
公开(公告)日：2016-10-20
申请号：US15196397
申请日：2016-06-29
Applicant: Broadcom Corporation
Inventor： Louay JALLOUL , Sam ALEX , Amin MOBASHER
CPC classification number: H04B7/0413 , H04B7/0404 , H04B7/0684 , H04B7/0691 , H04L25/0202 , H04L25/0204 , H04L25/0228
Abstract: Antenna systems and methods for Massive Multi-Input-Multi-Output (MIMO) (M-MIMO) communication are provided. Antennas systems include a M-MIMO transmitter architecture with a hybrid matrix structure. The hybrid matrix structure protects against transmit path component failures and ensures that a spatial rate of the M-MIMO transmitter is not degraded by the failures. Antenna systems and methods also include antenna selection schemes for selecting a subset of antennas from a plurality of antennas to transmit to a receiver.
Abstract translation: 提供了用于大规模多输入多输出（MIMO）（M-MIMO）通信的天线系统和方法。 天线系统包括具有混合矩阵结构的M-MIMO发射机架构。 混合矩阵结构保护发射路径组件故障，并确保M-MIMO发射机的空间速率不会由于故障而降级。 天线系统和方法还包括用于从多个天线中选择天线子集以发射到接收机的天线选择方案。
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公开(公告)号：US20150098439A1
公开(公告)日：2015-04-09
申请号：US14506050
申请日：2014-10-03
Applicant: Broadcom Corporation
Inventor： Amin MOBASHER , Louay JALLOUL
CPC classification number: H04J11/0056 , H04L5/0007 , H04L5/0044 , H04L5/0073 , H04L5/0092 , H04W52/243 , H04W72/082 , H04W72/1289
Abstract: A framework for enabling a user equipment (UE) to apply interference suppression processing during network conditions that are favorable to interference suppression or that are known is provided. The framework includes an interference suppression (IS) time and frequency (time/frequency) zone, which can be scheduled by a serving base station and signaled to the UE. In an embodiment, the serving base station coordinates with the interfering base station(s) to create a network condition favorable to interference suppression at the UE during the IS time/frequency zone. In another embodiment, the serving base station opportunistically schedules the IS time/frequency zone for the UE whenever it determines favorable transmission parameters being used or scheduled for use by the interfering base station(s). The UE applies interference suppression processing within the IS time/frequency zone, thereby improving receiver performance.
Abstract translation: 提供用于使用户设备（UE）在有利于干扰抑制或已知的网络条件下应用干扰抑制处理的框架。 该框架包括干扰抑制（IS）时间和频率（时间/频率）区域，其可由服务基站调度并发信号通知给UE。 在一个实施例中，服务基站与干扰基站协调以创建有利于在IS时间/频率区域期间UE处的干扰抑制的网络条件。 在另一实施例中，只要服务基站确定正在使用或调度以供干扰基站使用的有利的传输参数，机会地为UE的IS时间/频率区域进行调度。 UE在IS时间/频率区域内应用干扰抑制处理，从而提高接收机的性能。
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5.发明申请公开(公告)号：US20150162961A1
公开(公告)日：2015-06-11
申请号：US14142310
申请日：2013-12-27
Applicant: BROADCOM CORPORATION
Inventor： Louay JALLOUL , Amin MOBASHER , Nihar JINDAL , Sam ALEX , Murat MESE
CPC classification number: H04B7/0452 , H04B7/0689 , H04L5/0005 , H04L5/0007 , H04L5/0053 , H04W88/10
Abstract: As wireless networks evolve, network providers may utilize legacy LTE devices as well as devices that support massive multi-input, multiple output (M-MIMO). Systems and methods for simultaneously servicing legacy LTE devices and M-MIMO devices are provided. In embodiments, a transmission zone for M-MIMO communications is defined within a legacy, non M-MIMO radio frame. The location of the M-MIMO transmission zone is transmitted to user devices. For example, an identification of the location of the M-MIMO transmission zone is transmitted in a system information message. In a further example, the location of the M-MIMO transmission zone is transmitted in the downlink control information. The location of the M-MIMO transmission zone may be defined dynamically based on a variety of criteria. In addition or alternatively, a set of pre-defined transmission zones may be utilized.
Abstract translation: 随着无线网络的发展，网络提供商可以利用传统的LTE设备以及支持大量多输入多输出（M-MIMO）的设备。 提供了用于同时维护传统LTE设备和M-MIMO设备的系统和方法。 在实施例中，在传统的非M-MIMO无线电帧内定义用于M-MIMO通信的传输区域。 M-MIMO传输区的位置被传送到用户设备。 例如，在系统信息消息中发送M-MIMO传输区域的位置的标识。 在另一示例中，在下行控制信息中发送M-MIMO传输区的位置。 M-MIMO传输区域的位置可以基于各种标准动态定义。 另外或替代地，可以使用一组预定义的传输区域。
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Patent Agency Ranking
公开(公告)号：US20150092621A1
公开(公告)日：2015-04-02
申请号：US14042107
申请日：2013-09-30
Applicant: Broadcom Corporation
Inventor： Louay JALLOUL , Amin MOBASHER , Sam ALEX
CPC classification number: H04L5/1461 , H04B7/0617 , H04B7/10 , H04L5/143
Abstract: A multiple input multiple output (MIMO) antenna system is implemented for communications in a wireless device. MIMO beamforming techniques are utilized to improve communications, and may be utilized in full-duplex mode. Techniques include the formation of beamforming patterns having orthogonal polarizations to one another at each communication device, but having matching polarization between transmit/receive pairs located at each respective communication device. Techniques also include the formation of beamforming patterns in a direction towards another communication device to maximize transmit power in that direction while inducing nulls in the beamforming pattern to reduce self-interference coupling via antennas configured for reception. Full-duplex communications are improved through monitoring of the self-interference coupling and adapting the beamforming patterns to reduce it. Beamforming vectors may be generated by solving a cost function that may include an additional constraint of reduction of self-interference coupling.
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。 利用MIMO波束形成技术来改善通信，并且可以在全双工模式下使用。 技术包括在每个通信设备处形成具有彼此正交极化但在每个相应通信设备处的发送/接收对之间具有匹配极化的波束成形模式。 技术还包括在朝向另一个通信设备的方向上形成波束成形模式以使该方向上的发射功率最大化，同时在波束形成模式中引起零点以减少经配置以用于接收的天线的自干扰耦合。 通过监测自干扰耦合并适应波束形成模式以减少全双工通信，从而改善了全双工通信。 波束成形向量可以通过解决可能包括减少自干扰耦合的附加约束的成本函数来生成。
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公开(公告)号：US20140335845A1
公开(公告)日：2014-11-13
申请号：US14274328
申请日：2014-05-09
Applicant: Broadcom Corporation
Inventor： Sam ALEX , Louay JALLOUL
CPC classification number: H04W76/048 , H04W16/32 , H04W24/02 , H04W24/10 , H04W72/0413 , 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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8.发明申请公开(公告)号：US20140307702A1
公开(公告)日：2014-10-16
申请号：US14222202
申请日：2014-03-21
Applicant: Broadcom Corporation
Inventor： Murat MESE , Yan WANG , Nihar JINDAL , Louay JALLOUL , Arogyaswami PAULRAJ , Amin MOBASHER , Sirikiat ARIYAVISITAKUL , James BENNETT , Sam ALEX
IPC: H04B7/04
CPC classification number: H04B7/0456 , H04B7/0413 , H04B7/0617 , H04B7/0691
Abstract: Systems and methods for enabling a wireless backhaul network between access points (APs) in a wireless network are provided. In an embodiment, the wireless backhaul network is enabled using a Massive Multiple Input Multiple Output (MIMO) radio access technology (RAT). In another embodiment, the wireless backhaul network is established using the same RAT as used by the APs to serve user devices, and can utilize the same time and frequency resources used for user communication.
Abstract translation: 提供了用于在无线网络中的接入点（AP）之间启用无线回程网络的系统和方法。 在一个实施例中，使用大规模多输入多输出（MIMO）无线电接入技术（RAT）来启用无线回程网络。 在另一个实施例中，使用与AP所使用的相同的RAT来建立无线回程网络，以为用户设备提供服务，并且可以利用用于用户通信的相同的时间和频率资源。
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9.发明申请公开(公告)号：US20140133417A1
公开(公告)日：2014-05-15
申请号：US14081721
申请日：2013-11-15
Applicant: BROADCOM CORPORATION
Inventor： Lek (Sirikiat) ARIYAVISITAKUL , Louay JALLOUL , Amin MOBASHER
CPC classification number: H04B7/0452 , H04B7/0456 , H04B7/0626 , H04B7/0632 , H04B7/0689 , H04L25/03343 , H04L25/03942 , H04W72/121
Abstract: For an infinite number of transmit antennas at a base station (BS), matched filter (MF) precoding (a type of precoding used to perform SU-MIMO transmission) becomes optimal for performing spatial multiplexing. But observations have shown that precoding types for performing MU-MIMO transmission can perform significantly better than MF precoding for a realizable number of transmit antennas at the BS, even while using the simplest precoding types for MU-MIMO transmission. For large inter-cell interference typically encountered by user terminals (UTs) at or near the boundary of the cell served by the BS, MF precoding can still be used to eliminate or reduce the need for coordination among cells, which consumes network and back-haul resources.
Abstract translation: 对于基站（BS）的无限数量的发射天线，匹配滤波器（MF）预编码（用于执行SU-MIMO传输的预编码的类型）对于执行空间复用是最佳的。 但是观察结果表明，即使在使用MU-MIMO传输的最简单的预编码类型时，用于执行MU-MIMO传输的预编码类型也可以执行明显优于在BS处的可实现数量的发射天线的MF预编码。 对于在由BS服务的小区的边界处或附近的用户终端（UT）通常遇到的大的小区间干扰，MF预编码仍然可以用于消除或减少对小区之间的协调的需要， 运输资源。
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公开(公告)号：US20150365938A1
公开(公告)日：2015-12-17
申请号：US14743885
申请日：2015-06-18
Applicant: Broadcom Corporation
Inventor： Arogyaswami PAULRAJ , Murat MESE , Yan WANG , Nihar JINDAL , Louay JALLOUL , Amin MOBASHER , Sam ALEX
CPC classification number: H04W72/0433 , H04B7/0413 , H04B7/0452 , H04B7/0617 , H04L5/0023 , H04L5/0092 , H04L5/0094 , H04W16/00 , H04W16/04 , H04W24/02 , H04W24/08 , H04W28/0215 , H04W72/04 , H04W88/08 , H04W88/10
Abstract: Systems and methods for channel assignment configuration in a multiple access point (AP) environment are provided. The multiple APs can be homogeneous or heterogeneous and can implement one or more radio access technologies (RATs), including Massive Multiple Input Multiple Output (M-MIMO) RATs. A channel assignment configuration for a user equipment (UE) can identify one or more communication channels to be established to serve the UE by one or more of the APs.
Abstract translation: 提供了多接入点（AP）环境中信道分配配置的系统和方法。 多个AP可以是同质的或异构的，并且可以实现一个或多个无线电接入技术（RAT），包括大规模多输入多输出（M-MIMO）RAT。 用户设备（UE）的信道分配配置可以识别一个或多个待建立的通信信道，以便由一个或多个AP服务于UE。
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