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    Low overhead PMI and CQI feedback and pairing schemes for MU-MIMO
    32.
    发明授权
    Low overhead PMI and CQI feedback and pairing schemes for MU-MIMO 失效
    用于MU-MIMO的低开销PMI和CQI反馈和配对方案

    公开(公告)号：US08644422B2

    公开(公告)日：2014-02-04

    申请号：US12705482

    申请日：2010-02-12

    申请人： Shiwei Gao ,  Hua Xu ,  Yongkang Jia ,  Amin Mobasher ,  Alireza Bayesteh ,  Zhijun Cai

    发明人： Shiwei Gao ,  Hua Xu ,  Yongkang Jia ,  Amin Mobasher ,  Alireza Bayesteh ,  Zhijun Cai

    IPC分类号： H03K9/00 ,  H04L27/06

    CPC分类号： H04L25/03343 ,  H04B7/0452 ,  H04B7/0465 ,  H04B7/0478 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/0641 ,  H04B7/0658 ,  H04L1/0026 ,  H04L1/0029 ,  H04L1/0031 ,  H04L2025/03426 ,  H04L2025/03605 ,  H04L2025/03808 ,  H04W24/00 ,  H04W72/00

    摘要： A method is provided for searching for a pairing PMI including estimating a MIMO wireless propagation channel from an access point transmitter to a receiver at a UE; quantizing the estimated channel with a codebook consisting of a plurality of codewords, the result being an actual SU-MIMO PMI currently applicable to the UE; estimating the channel quality corresponding to the actual SU-MIMO PMI, resulting in at least one CQI for the UE; constructing a plurality of subsets from a codebook of codewords, wherein each subset comprises potential MU-MIMO PMIs that represent channels that have reduced interference with a channel represented by one of the potential SU-MIMO PMIs; associating each potential SU-MIMO PMI with the subset that comprises the potential MU-MIMO PMIs that represent channels that have reduced interference with the channel represented by that potential SU-MIMO PMI; searching for an appropriate pairing PMI and the associated CQI for the UE.

    摘要翻译： 提供了一种用于搜索配对PMI的方法，包括：估计来自接入点发射机的MIMO无线传播信道到UE处的接收机; 使用由多个码字组成的码本量化估计信道，其结果是当前适用于UE的实际SU-MIMO PMI; 估计与实际SU-MIMO PMI相对应的信道质量，从而产生用于UE的至少一个CQI; 从代码字的码本构建多个子集，其中每个子集包括潜在的MU-MIMO PMI，其表示对由潜在的SU-MIMO PMI之一表示的信道具有减小的干扰的信道; 将每个潜在的SU-MIMO PMI与包含潜在的MU-MIMO PMI的子集相关联，所述潜在MU-MIMO PMI表示与由该潜在SU-MIMO PMI表示的信道具有减小的干扰的信道; 搜索用于UE的适当配对PMI和相关联的CQI。

    Downlink transmission in a multiple-user multiple-input multiple-output (“MU-MIMO”) wireless communication system
    33.
    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

    申请人： Alireza Bayesteh ,  Amin Mobasher ,  Hua Xu ,  Yongkang Jia ,  Yi Yu ,  Jack Anthony Smith ,  Zhijun Sam Cai ,  Shiwei Gao

    发明人： Alireza Bayesteh ,  Amin Mobasher ,  Hua Xu ,  Yongkang Jia ,  Yi Yu ,  Jack Anthony Smith ,  Zhijun Sam Cai ,  Shiwei Gao

    IPC分类号： H04B7/02

    CPC分类号： H04B7/0632 ,  H04B7/0417 ,  H04B7/0452 ,  H04B7/0639 ,  H04B7/0641

    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。

    CODE BOOKS FOR MULTIPLE-INPUT AND MULTIPLE-OUTPUT COMMUNICATION SYSTEMS
    35.
    发明申请
    CODE BOOKS FOR MULTIPLE-INPUT AND MULTIPLE-OUTPUT COMMUNICATION SYSTEMS 失效
    多输入和多输出通信系统的代码簿

    公开(公告)号：US20100322341A1

    公开(公告)日：2010-12-23

    申请号：US12702365

    申请日：2010-02-09

    申请人： Alireza Bayesteh ,  Farzaneh Kohandani ,  Yongkang Jia

    发明人： Alireza Bayesteh ,  Farzaneh Kohandani ,  Yongkang Jia

    IPC分类号： H04L27/00

    CPC分类号： H04L25/03343 ,  H04L2025/03426

    摘要： A method and device for transmitting and receiving data. A device comprises a code book and a transmitter. The code book comprises a plurality of codewords, wherein the plurality of codewords correspond to a plurality of vectors having a largest minimum chordal distance with respect to the plurality of vectors. The transmitter is configured to send a number of wireless signals using the code book. A receiver receives and decodes the number of wireless signals.

    摘要翻译： 一种用于发送和接收数据的方法和装置。 设备包括码本和发射机。 代码簿包括多个码字，其中多个码字对应于相对于多个向量具有最大最小和弦距离的多个向量。 发射器被配置为使用码本发送多个无线信号。 接收机接收并解码无线信号的数量。

    Sensing-assisted positioning of mobile devices
    36.
    发明授权
    Sensing-assisted positioning of mobile devices 有权

    公开(公告)号：US12007463B2

    公开(公告)日：2024-06-11

    申请号：US16939579

    申请日：2020-07-27

    申请人： Navid Tadayon ,  Alireza Bayesteh ,  Jianglei Ma

    发明人： Navid Tadayon ,  Alireza Bayesteh ,  Jianglei Ma

    IPC分类号： G01S13/06 ,  H04W64/00

    CPC分类号： G01S13/06 ,  H04W64/00

    摘要： Some embodiments of the present disclosure provide a location management function that receives, from a sensor system, a sensing-based profile that includes a sensing-based observation of a UE and receives, from a communication system, a reference-signal-based observation of the UE. The location management function may derive, from the sensing-based observation, a position hypothesis and may determine, from the reference-signal-based observation, UE identity information for the UE. By processing the reference-signal-based observation in conjunction with the sensing-based observation, the location management function may determine an association between the sensing-based observation and the reference-signal-based observation. The location management function may then transmit, to the UE having the UE identity information determined from the reference-signal-based observation, an indication of the position hypothesis derived from the sensing-based observation.

    Low peak to average power ratio single tone sparse transmission
    37.
    发明授权
    Low peak to average power ratio single tone sparse transmission 有权

    公开(公告)号：US11133969B2

    公开(公告)日：2021-09-28

    申请号：US16559865

    申请日：2019-09-04

    申请人： Javad Abdoli ,  Sanjeewa Herath ,  Alireza Bayesteh

    发明人： Javad Abdoli ,  Sanjeewa Herath ,  Alireza Bayesteh

    IPC分类号： H04L27/26

    摘要： Aspects of the present application use a linear transformation of a sparse mapped single carrier transmission at a transmitter, for which a comparable inverse transform of the linear transform applied at the transmitter can be applied at the receiver. The linear transform reduces the sparsity of sparse mapped symbols. The use of the linear transform to reduce the sparsity enables peak-to-average power ratio (PAPR) and/or cubic metric to be reduced as compared to if the linear transform is not used. The linear transforms may be implemented in a block-wise manner, element-wise manner or combination thereof.

    Mixed rank downlink compound multi-user interference alignment scheme
    40.
    发明授权
    Mixed rank downlink compound multi-user interference alignment scheme 有权
    混合下行复合多用户干扰对齐方案

    公开(公告)号：US08929493B2

    公开(公告)日：2015-01-06

    申请号：US13822528

    申请日：2011-02-01

    申请人： Amin Mobasher ,  Yongkang Jia ,  Alireza Bayesteh

    发明人： Amin Mobasher ,  Yongkang Jia ,  Alireza Bayesteh

    IPC分类号： H04L1/02 ,  H04B7/04 ,  H01Q3/26 ,  H04W16/28

    CPC分类号： H04B7/0456 ,  H01Q3/2605 ,  H04B7/0452 ,  H04B7/0486 ,  H04L25/03891 ,  H04W16/28

    摘要： A method, system and device are provided to enable one or more users to receive mixed-rank data from two transmitters by using an indexed list of linearly independent, predetermined vectors νref={vref1, . . . , vrefM} and channel knowledge H1, H2 from first and second transmitters to compute equivalent channel matrix information Hieq based on the assigned or determined rank of the receiver. With this information, each transmitter selects Li receivers and constructs a transmitted signal by applying a selected precoding matrix to the mixed rank data, thereby eliminating interference to the rest of the receivers in the network so that a receiver can receive transmitted signals from both transmitters.

    摘要翻译： 提供了一种方法，系统和设备，以使得一个或多个用户能够通过使用线性独立的预定向量的索引列表来接收来自两个发射机的混合秩数据，ref = {v ref1，...， 。 。 ，vrefM}和来自第一和第二发射机的信道知识H1，H2，以基于接收机的分配或确定的等级来计算等效信道矩阵信息Hieq。 利用该信息，每个发射机通过将选择的预编码矩阵应用于混合秩数据来选择Li接收机并构建发射信号，从而消除对网络中的其余接收机的干扰，使得接收机可以从两个发射机接收发射的信号。