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    SEPARATING AND EXTRACTING MODULATED SIGNALS
    1.
    发明申请
    SEPARATING AND EXTRACTING MODULATED SIGNALS 审中-公开
    分离和提取调制信号

    公开(公告)号：WO2017019131A1

    公开(公告)日：2017-02-02

    申请号：PCT/US2016/025278

    申请日：2016-03-31

    Applicant: TM IP HOLDINGS, LLC

    Inventor： GERDES, Richard C.

    IPC: H04J11/00 ,  H04L27/00 ,  H04L27/34

    CPC classification number: H04L27/32 ,  H04J11/004 ,  H04L7/0041 ,  H04L27/00 ,  H04L27/122 ,  H04L27/18 ,  H04L27/2697 ,  H04L27/3461 ,  H04L27/362 ,  H04L27/38

    Abstract: Transpositional Modulation, TM: The idea behind it can be seen as superimposing two different modulations in the same time/frequency resource. More in details: TM produces first a conventionally modulated (QAM, PSK... ) carrier signal, extracts its carrier, slightly modifies it so that the carrier wave also carries information at the pace of one bit per carrier wave period (more than 1 Gbit/s for LTE), and superimposes both signals for transmission. At the receiver, successive interference cancellation is performed: First conventionally modulated signal is detected, subtracted from received signal, and then TM signal is detected. The TM modulation implies third harmonic processing at the transmitter and receiver.

    Abstract translation: 转置调制TM：它背后的想法可以看作是在同一时间/频率资源中叠加两个不同的调制。 更详细地说：TM首先产生传统的调制（QAM，PSK ...）载波信号，提取其载波，稍微修改它，使得载波以每个载波周期的一个比特的速度携带信息（大于1 用于LTE的Gbit / s），并且将两个信号叠加以进行传输。 在接收机处，执行连续的干扰消除：从接收信号中减去第一常规调制信号，然后检测TM信号。 TM调制意味着在发射机和接收机处的三次谐波处理。

    METHOD AND APPARATUS FOR DETECTING DATA IN WIRELESS COMMUNICATION NETWORKS VIA A REDUCED COMPLEXITY TREE SEARCH
    2.
    发明申请
    METHOD AND APPARATUS FOR DETECTING DATA IN WIRELESS COMMUNICATION NETWORKS VIA A REDUCED COMPLEXITY TREE SEARCH 审中-公开
    通过降低复杂性树搜索在无线通信网络中检测数据的方法和装置

    公开(公告)号：WO2016128027A1

    公开(公告)日：2016-08-18

    申请号：PCT/EP2015/052743

    申请日：2015-02-10

    Applicant: HUAWEI TECHNOLOGIES CO., LTD. ,  RUSEK, Fredrik ,  HU, Sha

    Inventor： RUSEK, Fredrik ,  HU, Sha

    IPC: H04L25/03

    CPC classification number: H04L25/03203 ,  H04B17/336 ,  H04L1/0042 ,  H04L25/03968 ,  H04L27/3461 ,  H04M1/72519 ,  H04W76/25

    Abstract: An apparatus including a processor configured to receive a digital communication signal having a plurality of transmitted layers. The processor is configured to determine an estimated channel matrix based on the digital communication signal, determine a first estimated transmitted symbol vector and a mean square error matrix based on a linear analysis of the received digital communication signal. A first set of bit LLR are determined based on a LMMSE type detector and a second set of bit LLR are determined based on a novel simplified tree search process. The two sets of bit LLR are then combined and used to detect the data in the received communication signal. The simplified tree search process uses a specially formed channel shortening process to determine a set of shortened channel correlation matrices that allow the second set of bit LLR to be determined using an alternative marginalized tree search process.

    Abstract translation: 一种包括处理器的设备，其被配置为接收具有多个传输层的数字通信信号。 处理器被配置为基于数字通信信号确定估计的信道矩阵，基于所接收的数字通信信号的线性分析来确定第一估计的发射符号向量和均方误差矩阵。 基于LMMSE类型检测器确定第一组比特LLR，并且基于新颖的简化树搜索过程来确定第二组比特LLR。 然后将两组比特LLR组合并用于检测接收到的通信信号中的数据。 简化的树搜索过程使用特殊形成的信道缩短过程来确定一组缩短的信道相关矩阵，其允许使用替代的边缘化树搜索过程来确定第二组比特LLR。

    METHOD AND APPARATUS FOR ADAPTIVE SIGNALING AND PUNCTURING OF A QAM COMMUNICATIONS SYSTEM
    4.
    发明申请
    METHOD AND APPARATUS FOR ADAPTIVE SIGNALING AND PUNCTURING OF A QAM COMMUNICATIONS SYSTEM 审中-公开
    用于QAM通信系统的自适应信令和调整的方法和装置

    公开(公告)号：WO2002100027A1

    公开(公告)日：2002-12-12

    申请号：PCT/US2002/015889

    申请日：2002-05-21

    Applicant: MOTOROLA, INC.

    Inventor： AGAMI, Gregory ,  CORKE, Robert, John ,  ROTSTEIN, Ron

    IPC: H04L1/00

    CPC classification number: H04L27/3461 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0069 ,  H04L1/0072 ,  H04L1/0086 ,  H04L25/067 ,  H04L27/38

    Abstract: A method and apparatus to adaptively puncture bits within QAM modulated data symbols transmitted in a communication system in order to effect a signaling channel. The method and apparatus utilize inherent characteristics of a particular mapping scheme for the QAM constellation to selectively puncture particular bits within a data symbol with signaling information and predetermined binary values to selectively increase the log-likelihood ratio gains of those particular bits punctured with the signaling information (206). The log-likelihood ratios are used to obtain the signaling information (210, 212, 214, 216) and, thus, increasing the gain of the log-likelihood ratios affords greater reliability for the signaling information without increasing the required system resources.

    Abstract translation: 一种在通信系统中自适应地穿透QAM调制数据符号内的比特以便实现信令信道的方法和装置。 该方法和装置利用QAM星座图的特定映射方案的固有特性来选择性地使用信令信息和预定二进制值对数据符号内的特定比特进行穿孔，以选择性地增加用信令信息打破的那些特定比特的对数似然比增益 （206）。 对数似然比用于获得信令信息（210,212,214,216），因此增加对数似然比的增益可以提供信令信息的更高的可靠性，而不增加所需的系统资源。

    APPARATUS AND METHODS EMPLOYING DISTRIBUTION PRESERVING TOMLINSON PRECODING IN TRANSMISSION OF DIGITAL DATA SIGNALS
    5.
    发明申请
    APPARATUS AND METHODS EMPLOYING DISTRIBUTION PRESERVING TOMLINSON PRECODING IN TRANSMISSION OF DIGITAL DATA SIGNALS 审中-公开
    使用数字信号传输方式保存TOMLINSON预分配的方法和方法

    公开(公告)号：WO1992014306A1

    公开(公告)日：1992-08-20

    申请号：PCT/US1992000941

    申请日：1992-02-06

    Applicant: GENERAL DATACOMM, INC.

    Inventor： GENERAL DATACOMM, INC. ,  COLE, Paul, Dana

    IPC: H04B01/10

    CPC classification number: H03M13/256 ,  H03M13/25 ,  H04L25/03343 ,  H04L25/49 ,  H04L25/497 ,  H04L25/4975 ,  H04L27/34 ,  H04L27/3461 ,  H04L2025/03802

    Abstract: A transmitter (10) is provided with a distribution preserving Tomlinson coder (25) which predistorts shaped data signals (20) such that the power of each data signal exiting the coder is substantially similar to the power of the data signal entering the coder and such that upon transmission of the predistorted data signal over a channel (40), the effect of ISI of the channel is substantially removed. The transmitter is primarily intended for coded modulation systems utilizing a ''coset'' code, and the predistortion is preferably accomplished according to a linear function (1), where rk is a data signal entering the coder, a1 and b1 are the coefficients of polynomials relating to the channel impulse response, xk is the predistorted data signal exiting the coder, and sk is chosen to cause the signal power of xk on average to approximately equal the signal power of rk on average. Different methods for so choosing sk are disclosed. Receivers (50) which cooperate with the provided transmitters (10) are also provided.

    MULTI-USER MULTIPLE INPUT MULTIPLE OUTPUT RADIO COMMUNICATIONS
    7.
    发明申请
    MULTI-USER MULTIPLE INPUT MULTIPLE OUTPUT RADIO COMMUNICATIONS 审中-公开
    多用户多输入多输出无线通信

    公开(公告)号：WO2014027943A3

    公开(公告)日：2014-04-10

    申请号：PCT/SE2013050715

    申请日：2013-06-18

    Applicant: ERICSSON TELEFON AB L M

    Inventor： LOPEZ MIGUEL ,  SUNDBERG MÅRTEN ,  LIBERG OLOF

    IPC: H04B7/04 ,  H04L27/18 ,  H04L27/34

    CPC classification number: H04B7/0452 ,  H04L27/18 ,  H04L27/3461 ,  H04W72/048

    Abstract: A radio base station and method are provided for use in a radio communications system that conducts radio communications over a radio interface using basic physical channels. Each basic physical channel defines a time slot and a radio frequency for transmission. Radio communication is established between a radio base station and multiple user equipments (UEs) over the same basic physical channel. Subchannels are provided in the same basic physical channel to simultaneously support three or four full rate UE communications, seven or eight half rate UE communications, or other combinations. A first baseband transmitter chain is configured so that it can map full rate data corresponding to first and second full rate UE communications (or equivalent) as adaptive quadrature phase shift keying, AQPSK. A second baseband transmitter chain is configured so that it can map full rate data corresponding to a third and/or fourth full rate UE communication (or equivalent) as phase shifted signals onto a third of the three subchannels.

    Abstract translation: 提供了一种无线电基站和方法，用于使用基本物理信道通过无线电接口进行无线电通信的无线电通信系统中。 每个基本的物理信道为传输定义一个时隙和一个射频。 无线电基站和多个用户设备（UE）之间通过相同的基本物理信道建立无线电通信。 在相同的基本物理信道中提供子信道以同时支持三个或四个全速率UE通信，七个或八个半速率UE通信或其他组合。 第一基带发射机链被配置为使得其可以映射对应于第一和第二全速率UE通信（或等效）的全速率数据作为自适应正交相移键控AQPSK。 第二基带发射机链被配置为使得其可以将与作为相移信号的第三和/或第四全速率UE通信（或等同物）对应的全速率数据映射到三个子信道中的第三个上。

    MULTI-USER MULTIPLE INPUT MULTIPLE OUTPUT RADIO COMMUNICATIONS
    8.
    发明申请
    MULTI-USER MULTIPLE INPUT MULTIPLE OUTPUT RADIO COMMUNICATIONS 审中-公开
    多用户多输入多输出无线电通信

    公开(公告)号：WO2014027943A2

    公开(公告)日：2014-02-20

    申请号：PCT/SE2013/050715

    申请日：2013-06-18

    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)

    Inventor： LOPEZ, Miguel ,  SUNDBERG, Mårten ,  LIBERG, Olof

    IPC: H04B7/04 ,  H04L27/18 ,  H04L27/34

    CPC classification number: H04B7/0452 ,  H04L27/18 ,  H04L27/3461 ,  H04W72/048

    Abstract: A radio base station and method are provided for use in a radio communications system that conducts radio communications over a radio interface using basic physical channels. Each basic physical channel defines a time slot and a radio frequency for transmission. Radio communication is established between a radio base station and multiple user equipments (UEs) over the same basic physical channel. Subchannels are provided in the same basic physical channel to simultaneously support three or four full rate UE communications, seven or eight half rate UE communications, or other combinations. A first baseband transmitter chain is configured so that it can map full rate data corresponding to first and second full rate UE communications (or equivalent) as adaptive quadrature phase shift keying, AQPSK. A second baseband transmitter chain is configured so that it can map full rate data corresponding to a third and/or fourth full rate UE communication (or equivalent) as phase shifted signals onto a third of the three subchannels.

    Abstract translation: 提供无线电基站和方法用于通过无线电接口使用基本物理信道进行无线电通信的无线电通信系统。 每个基本物理信道定义一个时隙和一个射频用于传输。 在无线基站和多个用户设备（UE）之间通过相同的基本物理信道建立无线电通信。 在相同的基本物理信道中提供子信道以同时支持三或四个全速率UE通信，七个或八个半速率UE通信或其他组合。 配置第一基带发射机链，使得其可以将对应于第一和第二全速率UE通信（或等效）的全速率数据映射为自适应正交相移键控AQPSK。 第二基带发射机链被配置为使得它可以将对应于第三和/或第四全速率UE通信（或等同物）的全速率数据映射为相移信号到三个子信道中的三分之一。

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