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公开(公告)号：US09392549B2
公开(公告)日：2016-07-12
申请号：US14298369
申请日：2014-06-06
Applicant: Broadcom Corporation
Inventor： Amin Mobasher , Sam Alex , Louay Jalloul
CPC classification number: H04W52/146 , H04B7/0478 , H04B7/0632 , H04B7/0639 , H04L5/00 , H04L5/0048 , H04L25/0204 , H04L25/0222 , H04W52/241
Abstract: Where receiver performance at a User Equipment (UE) is similar using a coarse precoder codebook as using a fine resolution precoder codebook, the signaling of a two-component precoder codebook is modified such that a precoder codeword is signaled to the UE in only a portion of the physical resources allocated for precoder codeword signaling to the UE. The remaining portion of the allocated physical resources is used to signal control information to improve the UE's performance.
Abstract translation: 在用户设备（UE）的接收机性能使用粗预编码器码本作为使用精细分辨率预编码器码本的情况下相似的情况下，修改双分量预编码码本的信令，使得预编码器码字仅在部分信令给UE 分配给UE的预编码器码字信令的物理资源。 所分配的物理资源的剩余部分用于信号控制信息以改善UE的性能。
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公开(公告)号：US09294259B2
公开(公告)日：2016-03-22
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：US20150163073A1
公开(公告)日：2015-06-11
申请号：US14142654
申请日：2013-12-27
Applicant: Broadcom Corporation
Inventor： Nihar Jindal , Arogyaswami Paulraj , Louay Jalloul , Sam Alex , Amin Mobasher
CPC classification number: H04L25/0204 , H04B7/0413 , H04B7/0617 , H04B7/0619 , H04L25/0228 , H04L25/025
Abstract: In an embodiment, a method of channel estimation is provided. The method includes determining a parametric model for a channel between a first transceiver and a second transceiver and transmitting a pilot signal to the second transceiver. The receiving transceiver is configured to determine a parameter of the parametric model based at least on the pilot signal and to estimate a channel transfer function coefficient for the channel based on the parameter and the parametric model.
Abstract translation: 在一个实施例中，提供了一种信道估计的方法。 该方法包括确定第一收发器和第二收发器之间的信道的参数模型，并将导频信号发送到第二收发器。 接收收发器被配置为至少基于导频信号来确定参数模型的参数，并且基于参数和参数模型来估计信道的信道传递函数系数。
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14.发明申请Cross Cell Beam Persistence In A Massive Multiple-Input, Multiple Output (MIMO) Environment 有权跨输入多输出（MIMO）环境中的跨小波束持续性公开(公告)号：US20150162959A1
公开(公告)日：2015-06-11
申请号：US14142581
申请日：2013-12-27
Applicant: Broadcom Corporation
Inventor： Nihar JINDAL , Murat Mese , Arogyaswami Paulraj , Louay Jalloul , Amin Mobasher , Sam Alex
CPC classification number: H04B7/0413 , H04B7/024 , H04B7/0617 , H04W16/28 , H04W72/046
Abstract: In wireless operating environments, wireless user devices are often within the coverage area of multiple base stations. The base station providing the best uplink for the user device may be different than the base station providing the best downlink for the user device. Systems and techniques for asymmetric uplink and downlink communications for a user device are provided. In embodiments, the user device initially synchronizes with a base station. Both the uplink and downlink are initially served by this base station. A determination is then made whether to handoff the downlink for the user device to another base station. When a determination is indicated, the downlink is handed off to the second base station. Thereafter, periodic measurements are made. The determinations whether to handoff the uplink and downlink for the user device are made independently.
Abstract translation: 在无线操作环境中，无线用户设备通常在多个基站的覆盖区域内。 为用户设备提供最佳上行链路的基站可以不同于为用户设备提供最佳下行链路的基站。 提供了用于用户设备的用于不对称上行链路和下行链路通信的系统和技术。 在实施例中，用户设备最初与基站同步。 上行链路和下行链路两者最初由该基站服务。 然后确定是否将用户设备的下行链路切换到另一个基站。 当指示确定时，下行链路被切换到第二基站。 此后，进行周期测量。 决定是否切换用户设备的上行链路和下行链路是独立进行的。
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公开(公告)号：US20140211670A1
公开(公告)日：2014-07-31
申请号：US14148582
申请日：2014-01-06
Applicant: Broadcom Corporation
Inventor： Sam P. Alex , Amin Mobasher , Louay Jalloul
CPC classification number: H04L5/14 , H04L5/0007 , H04L5/0048 , H04L5/0082 , H04L5/1438 , H04L5/1469 , H04W56/0015
Abstract: Provided are various implementations of a wireless network synchronization solution. In one implementation, such a solution includes a mobile communication device including a receiver for use with the wireless network. The receiver is configured to receive a downlink communication from the wireless network, to detect a primary synchronization signal (PSS) at a PSS subframe symbol of the downlink communication, and to detect a secondary synchronization signal (SSS) at an SSS subframe symbol of the downlink communication. The receiver is further configured to identify the downlink communication as being duplexed using one of a first duplexing mode and a second duplexing mode when the PSS subframe symbol follows the SSS subframe symbol, and to identify the downlink communication as being duplexed using the other of the first duplexing mode and the second duplexing mode when the PSS subframe symbol precedes the SSS subframe symbol.
Abstract translation: 提供了无线网络同步解决方案的各种实施方式。 在一个实现中，这样的解决方案包括包括用于无线网络的接收器的移动通信设备。 所述接收机被配置为从所述无线网络接收下行链路通信，以检测所述下行链路通信的PSS子帧符号处的主同步信号（PSS），并且检测所述下行链路通信的SSS子帧符号处的辅同步信号（SSS） 下行通信。 接收机还被配置为当PSS子帧符号遵循SSS子帧符号时，使用第一双工模式和第二双工模式之一来将下行链路通信识别为双工，并且使用另一个 当PSS子帧符号在SSS子帧符号之前时，第一双工模式和第二双工模式。
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Patent Agency Ranking
公开(公告)号：US20140140317A1
公开(公告)日：2014-05-22
申请号：US13838317
申请日：2013-03-15
Applicant: BROADCOM CORPORATION
Inventor： Amin Mobasher , Louay Jalloul
IPC: H04W72/08
CPC classification number: H04B7/024 , H04B7/0639 , H04J11/0033
Abstract: An interference suppression (IS) time/frequency zone for improved interference suppression at the user equipment (UE) is provided. The IS time/frequency zone can be scheduled and set up using existing signaling of the Almost Blank Subframe (ABS) framework. This includes using the existing signaling of the ABS framework to schedule the IS time/frequency zone, coordinate transmission parameters among base stations for the IS time/frequency zone, and signal the IS time/frequency zone to the UE. In another aspect, interfering base stations align respective reference signals during the IS time/frequency zone, which allows the UE to measure the channels from its serving base station and/or the interfering base stations(s). With channel state information knowledge at the UE, interference alignment can be achieved at the UE during the IS time/frequency zone.
Abstract translation: 提供用于在用户设备（UE）处改善干扰抑制的干扰抑制（IS）时间/频率区域。 可以使用“近似空白子帧（ABS）”框架的现有信号调度和设置IS时间/频率区域。 这包括使用ABS框架的现有信令调度IS时间/频率区域，在IS时间/频率区域的基站之间协调传输参数，并向IS发送IS时间/频率区域。 在另一方面，干扰基站在IS时间/频率区域期间对准各个参考信号，这允许UE从其服务基站和/或干扰基站测量信道。 利用UE处的信道状态信息知识，可以在IS时间/频率区域期间在UE处实现干扰对准。
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17.发明授权Cross cell beam persistence in a massive multiple-input, multiple output (MIMO) environment 有权巨大的多输入多输出（MIMO）环境中的跨小区光束持续性公开(公告)号：US09379790B2
公开(公告)日：2016-06-28
申请号：US14142581
申请日：2013-12-27
Applicant: Broadcom Corporation
Inventor： Nihar Jindal , Murat Mese , Arogyaswami Paulraj , Louay Jalloul , Amin Mobasher , Sam Alex
CPC classification number: H04B7/0413 , H04B7/024 , H04B7/0617 , H04W16/28 , H04W72/046
Abstract: In wireless operating environments, wireless user devices are often within the coverage area of multiple base stations. The base station providing the best uplink for the user device may be different than the base station providing the best downlink for the user device. Systems and techniques for asymmetric uplink and downlink communications for a user device are provided. In embodiments, the user device initially synchronizes with a base station. Both the uplink and downlink are initially served by this base station. A determination is then made whether to handoff the downlink for the user device to another base station. When a determination is indicated, the downlink is handed off to the second base station. Thereafter, periodic measurements are made. The determinations whether to handoff the uplink and downlink for the user device are made independently.
Abstract translation: 在无线操作环境中，无线用户设备通常在多个基站的覆盖区域内。 为用户设备提供最佳上行链路的基站可以不同于为用户设备提供最佳下行链路的基站。 提供了用于用户设备的用于不对称上行链路和下行链路通信的系统和技术。 在实施例中，用户设备最初与基站同步。 上行链路和下行链路两者最初由该基站服务。 然后确定是否将用户设备的下行链路切换到另一个基站。 当指示确定时，下行链路被切换到第二基站。 此后，进行周期测量。 决定是否切换用户设备的上行链路和下行链路是独立进行的。
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公开(公告)号：US20140307819A1
公开(公告)日：2014-10-16
申请号：US14213031
申请日：2014-03-14
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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公开(公告)号：US20140307815A1
公开(公告)日：2014-10-16
申请号：US14042244
申请日：2013-09-30
Applicant: Broadcom Corporation
Inventor： Sam ALEX , Louay Jalloul , Amin Mobasher
IPC: H04B7/04
CPC classification number: H04B7/0413 , H04B7/0404 , H04B7/0684 , H04B7/0691 , H04L25/0202 , H04L25/0204 , H04L25/0228
Abstract: Embodiments provide systems and methods for enabling a first transceiver to learn beamforming weights (e.g., Eigen beamforming weights) to a second transceiver, without any pilot signaling or explicit beamforming weight signaling from the second transceiver. In another embodiment, beamforming weight vectors to enable a multi-symbol spatial rate can be learned by the first transceiver.
Abstract translation: 实施例提供用于使第一收发器能够向第二收发器学习波束成形权重（例如，本征波束形成权重）的系统和方法，而没有来自第二收发器的任何导频信令或显式波束成形权重信令。 在另一个实施例中，可以通过第一收发器来学习能够实现多符号空间速率的波束成形权重向量。
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公开(公告)号：US09258161B2
公开(公告)日：2016-02-09
申请号：US13839544
申请日：2013-03-15
Applicant: Broadcom Corporation
Inventor： Louay Jalloul , Amin Mobasher , Sirikiat Ariyavisitakul
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。
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