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    Multiple spatial channel transmission with rate control
    3.
    发明授权
    Multiple spatial channel transmission with rate control 有权

    公开(公告)号：US09634743B2

    公开(公告)日：2017-04-25

    申请号：US15137098

    申请日：2016-04-25

    Applicant: KONINKLIJKE PHILIPS N.V.

    Inventor： Yanmeng Sun

    IPC: H04J3/00 ,  H04B7/0417 ,  H04L1/00 ,  H04L1/06 ,  H04B1/04

    CPC classification number: H04B7/0417 ,  H04B1/04 ,  H04L1/0001 ,  H04L1/0015 ,  H04L1/0017 ,  H04L1/0026 ,  H04L1/0028 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0656 ,  H04L1/0687

    Abstract: A MIMO ARC transmitter derives demux streams (15, 20) carrying different parts of the information, at given data rates, processes each demux stream by coding and modulation (25, 30) before transmission over the channels, and varies (50, 165) the coding or modulation according to channel conditions, and controls the data rates (50, 155) according to conditions of the channels independently of the variations in coding and modulation. The separate control of processing and of data rates for each demux stream can provide a better balance of rapid response to changing conditions and efficiency in less rapidly changing conditions. The frequency of updating the processing can be limited since these take more time to adapt in the receiver. Sensitivity to rapid changes can be achieved by the data rate changes since these involve less overhead than changes in the processing.

    Automatic retransmission in communications systems
    5.
    发明授权
    Automatic retransmission in communications systems 有权
    通信系统中的自动重传

    公开(公告)号：US09397794B2

    公开(公告)日：2016-07-19

    申请号：US14321117

    申请日：2014-07-01

    Applicant: Inventergy, Inc.

    Inventor： Choo Eng Yap ,  Lee Ying Loh

    IPC: H04L1/18 ,  H03M13/00 ,  H04L1/06 ,  H04B7/04 ,  H04L1/08 ,  H03M13/09 ,  H03M13/23 ,  H03M13/29 ,  H04L1/00

    CPC classification number: H04L1/1819 ,  H03M13/09 ,  H03M13/23 ,  H03M13/2957 ,  H03M13/6306 ,  H04B7/0413 ,  H04L1/0001 ,  H04L1/0625 ,  H04L1/0643 ,  H04L1/0656 ,  H04L1/08 ,  H04L1/1822 ,  H04L1/1825 ,  H04L1/1887

    Abstract: Automatic retransmission in communications systems. An embodiment includes retransmitting data. A cyclic redundancy check (CRC) is executed on a portion of data received as part of a data stream at a receiver antenna. Feedback information of acknowledgment (ACK) or negative acknowledgement (NACK) for the portion of data is determined based on a result of the CRC. It is identified that the portion of data is to be retransmitted based on the feedback information indicating a NACK with respect to the portion of data. A retransmission mode is selected for the portion of data based on desired characteristics of the data stream, including a first mode that retransmits the portion of data on at least a first transmitter antenna while transmitting new data on at least a second transmitter antenna; and a second mode that retransmits the portion of data simultaneously on at least the first and second transmitter antennas.

    Abstract translation: 通信系统中的自动重传。 一个实施例包括重传数据。 在作为接收机天线的数据流的一部分接收的数据的一部分上执行循环冗余校验（CRC）。 基于CRC的结果确定数据部分的确认（ACK）或否定确认（NACK）的反馈信息。 基于指示关于数据部分的NACK的反馈信息，识别出要重发数据的部分。 基于数据流的期望特性为数据的部分选择重传模式，包括在至少第二发射机天线上传输新数据的同时在至少第一发射机天线上重发数据的第一模式; 以及第二模式，其在至少所述第一和第二发射机天线上同时重传所述部分数据。

    Transmission apparatus, reception apparatus, wireless communication system, control program and integrated circuit
    6.
    发明授权
    Transmission apparatus, reception apparatus, wireless communication system, control program and integrated circuit 有权
    发送装置，接收装置，无线通信系统，控制程序和集成电路

    公开(公告)号：US09185577B2

    公开(公告)日：2015-11-10

    申请号：US13700754

    申请日：2011-05-13

    Applicant: Hiromichi Tomeba ,  Minoru Kubota ,  Takashi Onodera ,  Shimpei To ,  Kozue Hirata ,  Hiroshi Nakano

    Inventor： Hiromichi Tomeba ,  Minoru Kubota ,  Takashi Onodera ,  Shimpei To ,  Kozue Hirata ,  Hiroshi Nakano

    IPC: H04W24/02 ,  H04B7/04 ,  H04L1/06 ,  H04L25/497 ,  H04J11/00 ,  H04L27/26

    CPC classification number: H04W24/02 ,  H04B7/0452 ,  H04J11/0033 ,  H04L1/0625 ,  H04L1/0656 ,  H04L25/4975 ,  H04L27/2601

    Abstract: To realize transmission performances equivalent to those of an MU-MIMO BLAST ZF-THP system without increasing a signal processing amount in a base station apparatus in a downlink MU-MIMO transmission system. A transmission apparatus is provided with a plurality of transmission antennas, generates a transmission signal addressed to each reception apparatus based on information indicating spatial correlation of channels to and from a plurality of reception apparatuses, space-multiplexes the generated each transmission signal in the same wireless resource, and transmits it to each reception apparatus. The transmission apparatus includes: an ordering determination part 601 which determines an order in which a transmission signal addressed to each reception apparatus is generated based on information indicating spatial correlation of channels; a linear filter generation part 603 which generates a linear filter based on the determined order; a THP part 605 which performs a THP process by using the determined order and the linear filter; and a linear filter multiplication part 607 which multiplies an output of the THP part 605 by the linear filter.

    Abstract translation: 实现与MIMO-MIMO BLAST ZF-THP系统相当的传输性能，而不增加下行MU-MIMO传输系统中的基站装置中的信号处理量。 发送装置具有多个发送天线，基于表示与多个接收装置的频道的频道的空间相关性的信息，生成发往各接收装置的发送信号，对同一无线电中产生的各发送信号进行空间复用 资源，并将其发送到每个接收装置。 传输装置包括：排序确定部分601，其基于指示信道的空间相关性的信息来确定寻址到每个接收装置的发送信号的顺序; 线性滤波器生成部603，其基于所确定的次序生成线性滤波器; 通过使用确定的顺序执行THP处理的THP部件605和线性滤波器; 线性滤波器乘法部607，其将THP部605的输出与线性滤波器相乘。

    Uplink control signal design for wireless system
    7.
    发明授权
    Uplink control signal design for wireless system 有权
    无线系统的上行链路控制信号设计

    公开(公告)号：US09088385B2

    公开(公告)日：2015-07-21

    申请号：US14270025

    申请日：2014-05-05

    Applicant: APPLE INC.

    Inventor： Dong-Sheng Yu ,  Hosein Nikopourdeilami ,  Sophie Vrzic ,  Mo-Han Fong ,  Robert Novak ,  Jun Yuan

    IPC: H04W4/00 ,  H04J13/16 ,  H04L1/00 ,  H04L1/06 ,  H04L5/00 ,  H04W28/06

    CPC classification number: H04L1/0041 ,  H03M13/2903 ,  H04J13/16 ,  H04L1/0026 ,  H04L1/0042 ,  H04L1/0047 ,  H04L1/0057 ,  H04L1/0067 ,  H04L1/0072 ,  H04L1/0079 ,  H04L1/0656 ,  H04L5/0048 ,  H04L5/0055 ,  H04L5/0057 ,  H04W28/06

    Abstract: Transmission of uplink control message for a wireless system. The uplink control message may be encoded according to one of multiple possible schemes. The choice of encoding scheme may be made based on the control message size and/or based on the available transmission resources and/or based on the detection scheme used on the receiving end. A modulation scheme may also be selected based on such factors. CDM may be used for certain control messages. Block code encoding, such as Reed-Muller encoding may be used for certain control messages. Different transmission resources may be allocated for different control message uses. The encoding specifics may be selected to obtain a certain hamming distance and/or size of the encoded message or based on other factors.

    Abstract translation: 传输无线系统的上行链路控制消息。 上行链路控制消息可以根据多种可能方案之一进行编码。 可以基于控制消息大小和/或基于可用传输资源和/或基于在接收端使用的检测方案来进行编码方案的选择。 还可以基于这样的因素来选择调制方案。 CDM可以用于某些控制消息。 块代码编码，如Reed-Muller编码可用于某些控制消息。 可以为不同的控制消息使用分配不同的传输资源。 可以选择编码细节以获得编码消息的某个汉明距离和/或尺寸，或者基于其他因素。

    CQI and rank prediction for list sphere decoding and ML MIMO receivers
    9.
    发明授权
    CQI and rank prediction for list sphere decoding and ML MIMO receivers 有权
    用于列表球体解码和ML MIMO接收机的CQI和秩预测

    公开(公告)号：US08971461B2

    公开(公告)日：2015-03-03

    申请号：US11441652

    申请日：2006-05-25

    Applicant: Hemanth Sampath ,  Tamer Kadous

    Inventor： Hemanth Sampath ,  Tamer Kadous

    IPC: H04L1/00 ,  H04B7/12 ,  H04B1/10 ,  H04B7/04 ,  H04B7/06 ,  H04L1/06 ,  H04L25/03

    CPC classification number: H04B7/12 ,  H04B1/1027 ,  H04B7/0417 ,  H04B7/063 ,  H04B7/0632 ,  H04L1/0026 ,  H04L1/0656 ,  H04L1/0675 ,  H04L25/03242 ,  H04L2025/03426

    Abstract: Systems and methodologies are described that facilitate integrating a list-sphere decoding design in a multiple input-multiple output (MIMO wireless communication environment. According to various aspects, optimal rank selection and CQI computation for an optimal rank can be performed in conjunction with a non-linear receiver, such as a maximum life (ML) MMSE receiver, a non-linear receiver with a list-sphere decoder, and the like. Optimal rank selection can be performed using a maximum rank selection protocol, a channel capacity-based protocol, or any other suitable protocol that facilitates rank selection, and CQI information can be generated based in part on effective SNRs determined with regard to a selected optimal rank.

    Abstract translation: 描述了有助于将多个输入多输出（MIMO无线通信环境）中的列表球体解码设计进行集成的系统和方法，根据各个方面，最佳秩选择和最佳秩的CQI计算可以结合非 - 线性接收机，例如最大寿命（ML）MMSE接收机，具有列表球体解码器的非线性接收机等。最佳秩选择可以使用最大秩选择协议，基于信道容量的协议 或有助于等级选择的任何其它合适的协议，并且可以部分地基于针对所选择的最优等级确定的有效SNR来生成CQI信息。

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