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    Location-based beam prediction using machine learning
    2.
    发明授权
    Location-based beam prediction using machine learning 有权

    公开(公告)号：US11096176B2

    公开(公告)日：2021-08-17

    申请号：US16422383

    申请日：2019-05-24

    申请人： Yicheng Lin ,  Mohammadhadi Baligh ,  Hamidreza Farmanbar ,  Aman Jassal

    发明人： Yicheng Lin ,  Mohammadhadi Baligh ,  Hamidreza Farmanbar ,  Aman Jassal

    IPC分类号： H04W4/00 ,  H04W72/04 ,  H04L12/24 ,  G06N20/00 ,  G06K9/62

    摘要： Network equipment receives, from User Equipment (UE), information indicative of each of multiple UE locations in a wireless communication network. For each location, a respective antenna beam direction for communications between the network equipment and a UE at each location is determined. A Machine Learning (ML) module is trained using each location as an ML module input and the respective antenna beam direction for each location as an ML module output. The trained ML module is then used to provide beam predictions based on UE location. Based on the current location of a UE, one or more antenna beam directions for communications between the network equipment and the UE at the current location are obtained from the ML module. The UE location is input to the ML module, and the antenna beam direction(s) are then obtained from the ML module output(s).

    POWER ALLOCATION IN CLOSED-LOOP DOWNLINK COOPERATIVE MULTIPLE POINT (COMP) TRANSMISSION
    4.
    发明申请
    POWER ALLOCATION IN CLOSED-LOOP DOWNLINK COOPERATIVE MULTIPLE POINT (COMP) TRANSMISSION 审中-公开
    闭环关联功能分配合作多点（COMP）传输

    公开(公告)号：US20120044849A1

    公开(公告)日：2012-02-23

    申请号：US13147000

    申请日：2010-02-02

    申请人： Hamidreza Farmanbar ,  Amir Khandani ,  Mohammadhadi Baligh ,  Hosein Nikopourdeilami ,  Jianglei Ma

    发明人： Hamidreza Farmanbar ,  Amir Khandani ,  Mohammadhadi Baligh ,  Hosein Nikopourdeilami ,  Jianglei Ma

    IPC分类号： H04W72/04 ,  H04W52/16 ,  H04W4/06

    CPC分类号： H04W52/40 ,  H04B7/022 ,  H04B7/024 ,  H04W72/0453

    摘要： Techniques for power allocation among a plurality of network nodes in a communication network for cooperative downlink transmission to a mobile terminal are provided. Cooperative transmission to a mobile terminal is done in a selected one of a plurality of frequency bands allocated for cooperative downlink transmission, wherein each network node has a respective predetermined frequency band transmission power level for each of the plurality of frequency bands allocated for cooperative downlink transmission. Selection of the frequency band on which the mobile terminal will be cooperatively transmitted to is based on channel state information indicative of the channel between the mobile terminal and each of the network nodes and, for each of the frequency bands, the respective plurality of predetermined frequency band transmission power levels corresponding to the plurality of network nodes.

    摘要翻译： 提供了用于向移动终端进行协同下行链路传输的通信网络中的多个网络节点之间的功率分配技术。 在分配用于协同下行链路传输的多个频带中的选定的一个中进行到移动终端的协作传输，其中每个网络节点具有针对分配用于协作下行链路传输的多个频带中的每个频带的相应的预定频带传输功率电平 。 基于指示移动终端和每个网络节点之间的信道的信道状态信息，并且对于频带中的每一个，相应的多个预定频率 对应于多个网络节点的频带发射功率电平。

    UE POWER ALLOCATION ACCORDING TO SCHEDULER UTILITY METRIC FOR DL MU-MIMO AND DL CoMP
    6.
    发明申请
    UE POWER ALLOCATION ACCORDING TO SCHEDULER UTILITY METRIC FOR DL MU-MIMO AND DL CoMP 有权
    根据用于DL MU-MIMO和DL CoMP的调度器实用度量度的UE功率分配

    公开(公告)号：US20140029522A1

    公开(公告)日：2014-01-30

    申请号：US13558713

    申请日：2012-07-26

    申请人： Hamidreza Farmanbar ,  Mohammadhadi Baligh ,  Keyvan Zarifi

    发明人： Hamidreza Farmanbar ,  Mohammadhadi Baligh ,  Keyvan Zarifi

    IPC分类号： H04W72/04

    CPC分类号： H04W52/42 ,  H04B7/024 ,  H04B7/0426 ,  H04B7/0452 ,  H04B7/0626 ,  H04L5/0035 ,  H04W52/346 ,  H04W52/367

    摘要： A system is provided for allocating downlink transmit power in a wireless multiple-input multiple-output (MIMO) system. During operation, the system identifies a set of receivers for receiving signals from one or more transmitters on a same time-frequency slot, receives channel state information (CSI) for communication channels between the identified receivers and the transmitters, and constructs a precoder based on the CSI. The system further derives a set of power-scale factors for the precoder based on a utility function associated with the identified receivers such that the power-scale factors optimize the utility function. A respective power-scale factor scales power transmitted to a corresponding receiver.

    摘要翻译： 提供一种用于在无线多输入多输出（MIMO）系统中分配下行链路发射功率的系统。 在操作期间，系统识别用于在同一时隙上从一个或多个发射机接收信号的一组接收机，为所识别的接收机与发射机之间的通信信道接收信道状态信息（CSI），并构建基于 CSI。 该系统还基于与所识别的接收机相关联的效用函数，导出预编码器的一组功率尺度因子，使得功率尺度因子优化效用函数。 相应的功率比例因子将发射到相应接收机的功率缩放。

    Method and apparatus for modulation and coding scheme adaption in a MIMO system
    7.
    发明授权
    Method and apparatus for modulation and coding scheme adaption in a MIMO system 有权
    MIMO系统中调制和编码方案适应的方法和装置

    公开(公告)号：US08731028B2

    公开(公告)日：2014-05-20

    申请号：US13310627

    申请日：2011-12-02

    申请人： Hamidreza Farmanbar ,  Aaron Callard ,  Mohammadhadi Baligh

    发明人： Hamidreza Farmanbar ,  Aaron Callard ,  Mohammadhadi Baligh

    IPC分类号： H04L1/00

    CPC分类号： H04W24/02 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/086 ,  H04L1/0003 ,  H04L1/0009 ,  H04L25/03343 ,  H04L25/03891 ,  H04L25/03968

    摘要： Method and apparatus for decoding a transmitted signal by a receiver in a MIMO system into a first estimate component for estimating a first signal, a first interference component indicating interference resulting from a correlation relationship among a set of signals to be transmitted, and a first noise component. A base station generates the transmitted signal from the set of signals through a coding process, the coding process defining a correlation relationship amongst the set of signals. The correlation information about the correlation relationship is transmitted to the receiver directly or by a dedicated reference symbol. The decoding is performed by determining a linear receiver filter for the first signal in accordance with the correlation information, and de-correlating the first signal and interferences.

    摘要翻译： 用于将MIMO系统中的接收机的发送信号解码成用于估计第一信号的第一估计分量的方法和装置，指示由要发送的一组信号之间的相关关系产生的干扰的第一干扰分量和第一噪声 零件。 基站通过编码处理从该组信号生成发送的信号，该编码处理定义该组信号之间的相关关系。 关于相关关系的相关信息被直接地或通过专用参考符号发送到接收器。 通过根据相关信息确定用于第一信号的线性接收机滤波器，并且对第一信号和干扰进行去相关，来执行解码。

    Method and Apparatus for Modulation and Coding Scheme Adaption in a MIMO System
    8.
    发明申请
    Method and Apparatus for Modulation and Coding Scheme Adaption in a MIMO System 有权
    MIMO系统中调制和编码方案适应的方法和装置

    公开(公告)号：US20130142290A1

    公开(公告)日：2013-06-06

    申请号：US13310627

    申请日：2011-12-02

    申请人： Hamidreza Farmanbar ,  Aaron Callard ,  Mohammadhadi Baligh

    发明人： Hamidreza Farmanbar ,  Aaron Callard ,  Mohammadhadi Baligh

    IPC分类号： H04L27/06 ,  H04L27/00

    CPC分类号： H04W24/02 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/086 ,  H04L1/0003 ,  H04L1/0009 ,  H04L25/03343 ,  H04L25/03891 ,  H04L25/03968

    摘要： Method and apparatus for decoding a transmitted signal by a receiver in a MIMO system into a first estimate component for estimating a first signal, a first interference component indicating interference resulting from a correlation relationship among a set of signals to be transmitted, and a first noise component. A base station generates the transmitted signal from the set of signals through a coding process, the coding process defining a correlation relationship amongst the set of signals. The correlation information about the correlation relationship is transmitted to the receiver directly or by a dedicated reference symbol. The decoding is performed by determining a linear receiver filter for the first signal in accordance with the correlation information, and de-correlating the first signal and interferences.

    摘要翻译： 用于将MIMO系统中的接收机的发送信号解码成用于估计第一信号的第一估计分量的方法和装置，指示由要发送的一组信号之间的相关关系产生的干扰的第一干扰分量和第一噪声 零件。 基站通过编码处理从该组信号生成发送的信号，该编码处理定义该组信号之间的相关关系。 关于相关关系的相关信息被直接地或通过专用参考符号发送到接收器。 通过根据相关信息确定用于第一信号的线性接收机滤波器，并且对第一信号和干扰进行去相关，来执行解码。

    Reference signaling overhead reduction apparatus and methods
    9.
    发明授权
    Reference signaling overhead reduction apparatus and methods 有权

    公开(公告)号：US11569961B2

    公开(公告)日：2023-01-31

    申请号：US16556850

    申请日：2019-08-30

    申请人： Hamidreza Farmanbar ,  Navid Tadayon ,  Yicheng Lin

    发明人： Hamidreza Farmanbar ,  Navid Tadayon ,  Yicheng Lin

    IPC分类号： H04L5/00 ,  H04B7/0413

    摘要： Network equipment receives, from a User Equipment (UE), an indication that the network equipment is to transition to sparse reference signaling for the UE, and the network equipment then transmits the sparse reference signaling to the UE. The sparse reference signaling is consistent with a sparse signaling pattern, which is determined at the UE based on previous reference signaling previously transmitted to the UE or another UE. At a UE, the sparse reference signaling is received from network equipment, and channel measurement and prediction are performed based on the received sparse reference signaling.

    Sparse reference signal-related signaling apparatus and methods
    10.
    发明授权
    Sparse reference signal-related signaling apparatus and methods 有权

    公开(公告)号：US11258565B2

    公开(公告)日：2022-02-22

    申请号：US16556805

    申请日：2019-08-30

    申请人： Hamidreza Farmanbar ,  Jianglei Ma ,  Yicheng Lin ,  Navid Tadayon

    发明人： Hamidreza Farmanbar ,  Jianglei Ma ,  Yicheng Lin ,  Navid Tadayon

    IPC分类号： H04L5/00 ,  H04B7/06 ,  H04B7/0404

    摘要： Sparse reference signal-related signaling, for a wireless channel that is associated with multiple antenna ports, is communicated with a User Equipment (UE). The sparse reference signal-related signaling is consistent with a sparse signaling pattern. In an embodiment, the sparse signaling pattern includes reference signal-related signaling associated with each of the antenna ports, and has been determined based on previous reference signal-related signaling previously communicated with the UE or another UE. In another embodiment, the sparse reference signal-related signaling is consistent with a varying sparse signaling pattern that is based on previous reference signal-related signaling previously communicated with the UE or another UE.