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    • 1. 发明申请
    • APPARATUS AND METHOD FOR TRANSMITTING DATA SIGNAL BASED ON VARIOUS TRANSMISSION MODES
    • 基于各种传输模式发送数据信号的装置和方法
    • WO2018057277A2
    • 2018-03-29
    • PCT/US2017/049922
    • 2017-09-01
    • QUALCOMM INCORPORATED
    • HAFIZI, Madjid
    • G05F1/56H03K19/0175
    • H04L25/03885G05F1/56G06F2213/0042H03K19/0175H03K19/017509H03K19/017545H04L25/03343
    • A transmit driver or transmitter is provided to generate an output data signal based on different input modes, such as low speed (LS), full speed (FS), high speed (HS), and high speed interconnect (HSIC) modes of a Universal Serial Bus (USB) standard. The transmit driver includes a rail voltage generator for generating a rail voltage for a set of transmit driver slices based on the selected mode. The transmit driver includes a bias voltage generator for generating a bias voltage based on the selected mode for protecting transistors in the transmit driver slices from over-voltage stress. The transmit driver includes a predriver and level shifter for generating input signals for the transmit driver slices to set the output impedance of the transmit driver and the slew rate of the output data signal. The transmit driver includes an emphasis equalizer for providing controllable emphasis equalization to the output data signal.
    • 提供发送驱动器或发送器以基于诸如低速(LS),全速(FS),高速(HS)和高速(例如,高速)的不同输入模式产生输出数据信号 互连(HSIC)模式的通用串行总线(USB)标准。 发送驱动器包括轨道电压发生器,用于基于所选模式为一组发送驱动器片产生轨道电压。 发送驱动器包括偏置电压发生器,用于基于所选模式产生偏置电压,用于保护发送驱动器片中的晶体管免受过电压应力。 发送驱动器包括预驱动器和电平移位器,用于产生发送驱动器片的输入信号,以设置发送驱动器的输出阻抗和输出数据信号的转换速率。 发射驱动器包括一个强调均衡器,用于为输出数据信号提供可控的强调均衡。
    • 2. 发明申请
    • APPARATUS AND METHOD FOR IDENTIFICATION AND COMPENSATION OF DISTORTION IN A MULTI-ANTENNA SYSTEM
    • 用于识别和补偿多天线系统中的失真的装置和方法
    • WO2017198288A1
    • 2017-11-23
    • PCT/EP2016/061001
    • 2016-05-17
    • TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    • HAUSMAIR, KatharinaERIKSSON, ThomasGUSTAVSSON, UlfFAGER, Christian
    • H04B1/04H04L27/36H04B7/06
    • H04B1/0475H04B1/0483H04B7/06H04B7/0639H04B2001/0425H04L25/03343
    • 40 ABSTRACT The disclosure relates to devices, methods, and computer programs in mobile communications in order to reduce signal distortions. Specifically, it relates to a transmitter system which comprises a plurality of signal paths. Each signal path is associated with an input transmission signal. Each signal path comprises an analogue portion of the signal path. Each 5 signal path comprises a Dual-Input Digital Predistortion, DI DPD, module. The DI DPD is configured to provide a predistorted input transmission signal to the analogue portion in response to a received Crosstalk and Mismatch, CTM, signal and the input transmission signal. The transmitter system further comprises one or more CTM modules configured to receive one or more input transmission signals. The CTM module comprises to separately generate for 10 each DI DPD module the CTM signal, where said CTM signals represent CTM distortions caused by one or more output transmission signals of each said analogue portion.
    • 摘要本公开涉及移动通信中的设备,方法和计算机程序以减少信号失真。 具体地说,它涉及一种包括多个信号路径的发射机系统。 每个信号路径与输入传输信号相关联。 每个信号路径包括信号路径的模拟部分。 每个5路信号路径都包含一个双输入数字预失真DI DI模块。 DI DPD被配置为响应于接收到的串扰和失配,CTM信号和输入传输信号,向模拟部分提供预失真的输入传输信号。 发射机系统还包括被配置为接收一个或多个输入传输信号的一个或多个CTM模块。 CTM模块包括为每个DI DPD模块分别生成CTM信号,其中所述CTM信号表示由每个所述模拟部分的一个或多个输出传输信号引起的CTM失真。
    • 3. 发明申请
    • PRECODING DEVICE FOR CANCELLING ASYMMETRICALLY KNOWN INTERFERENCE
    • 用于取消不对称已知干扰的预先设备
    • WO2017101999A1
    • 2017-06-22
    • PCT/EP2015/080080
    • 2015-12-16
    • HUAWEI TECHNOLOGIES CO., LTD.ZAIDI, AbdellatifTOMASIN, Stefano
    • ZAIDI, AbdellatifTOMASIN, Stefano
    • H04L25/03H04L25/497
    • H04L25/03955H04L25/03343H04L25/03974H04L25/4975
    • The disclosure relates to a precoding device (300) for cancelling asymmetrically known interference, the precoding device (300) comprising: a first transmitter node (Tx1) configured to generate a first input signal (X 1 ) carrying a first message (c W1 ) intended for transmission to a first reception node (Rx1); a second transmitter node (Tx2) configured to generate a second input signal (X 2 ) carrying a second message (C W2 ) intended for transmission to the first reception node (Rx1) and an interference signal (X) intended for transmission to another reception node (Rx2), wherein the interference signal (X) is an asymmetrically known interference signal that is known to the second transmitter node (Tx2) and unknown to the first transmitter node (Tx1 ), wherein the second transmitter node (Tx2) comprises: an interference canceller (305) configured to cancel part of the interference signal (X) to generate a partially cancelled interference signal (X c ), and a precoder (303), configured to use a lattice-based precoding scheme to precode the second message (W 2 ) with the non-cancelled part (X nc ) of the interference signal (X) to generate a precoded signal (X 2W ), wherein the second transmitter node (Tx2) is configured to generate the second input signal (X 2 ) based on the partially cancelled interference signal (X c ) and the precoded signal (X 2W ).
    • 本公开涉及用于消除非对称已知干扰的预编码设备(300),所述预编码设备(300)包括:第一发射机节点(Tx1),被配置为生成第一输入信号(X
    • 6. 发明申请
    • METHODS AND NODES OF A WIRELESS COMMUNICATION NETWORK FOR MITIGATING CROSSTALK IN A DISTRIBUTED BASE STATION SYSTEM
    • 无线通信网络在分布式基站系统中减轻混合动力的方法和方法
    • WO2016128045A1
    • 2016-08-18
    • PCT/EP2015/052888
    • 2015-02-11
    • TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    • LINS DE MEDEIROS, EduardoERIKSSON, Per-ErikHUANG, YeziLU, Chenguang
    • H04B3/32H04M11/06H04W88/08H04L27/26
    • H04B3/32H04B3/487H04L5/0048H04L25/0202H04L25/03159H04L25/03343H04L27/2605H04M11/062H04W88/085
    • Disclosed is a method for mitigating crosstalk performed by a network node of a wireless communication network operable in a base station system (100) of the wireless communication network, the base station system comprising an intermediate radio unit, IRU (10), a baseband unit, BBU (30), connected to the IRU and a plurality of radio heads, RHs, (21-26) connected to the IRU via a plurality of metallic conductors. The method comprises receiving from a first (21) of the plurality of RHs, a measure of an error of one or more symbols of a signal received by the first RH from the IRU over a first of the plurality of metallic conductors, the measure of the error being detected by the first RH, the signal being destined to a user equipment, UE (60), wirelessly connected to the first RH (21). The method further comprises determining precoding coefficients for a precoder according to the received error measure, and triggering applying the determined precoding coefficients when sending further signals to the first RH over the first of the plurality of metallic conductors, the further signals being destined to UEs wirelessly connected to the first RH.
    • 公开了一种减轻由无线通信网络的基站系统(100)中可操作的无线通信网络的网络节点执行的串扰的方法,所述基站系统包括中间无线电单元,IRU(10),基带单元 ,连接到IRU的BBU(30)和经由多个金属导体连接到IRU的多个无线电头RH(21-26)。 该方法包括从多个RH中的第一(21)接收由多个金属导体中的第一个上的来自IRU的由第一RH接收的信号的一个或多个符号的误差的量度, 由第一RH检测到的误差,该信号发往用户设备,无线连接到第一RH(21)的UE(60)。 该方法还包括根据接收到的误差测量确定预编码器的预编码系数,以及当在多个金属导体中的第一个发送另外的信号到第一个RH时触发施加所确定的预编码系数,另外的信号以无线方式发往UE 连接到第一个RH。
    • 9. 发明申请
    • NON-LINEAR PRECODING WITH A MIX OF NLP CAPABLE AND NLP NON-CAPABLE LINES
    • 非线性预处理与NLP可匹配和NLP不可线的混合
    • WO2016091852A1
    • 2016-06-16
    • PCT/EP2015/078925
    • 2015-12-08
    • ALCATEL LUCENT
    • MAES, Jochen
    • H04L25/03H04B3/32
    • H04B3/32H04L25/03343H04L25/03821H04L25/03898H04L25/0391H04L2025/03426H04M3/34H04M11/062
    • The present invention relates to a method for jointly processing signals (U) to be transmitted over respective ones of a plurality of subscriber lines (L1 to L4) through a non-linear precoder (21). The non-linear precoder comprises a first non-linear precoding stage (301; 301') configured to operate according to a first triangular precoding matrix (L; M; N) and including a modulo unit (Γ; γ), followed by a second linear precoding stage (302; 302') configured to operate according to a second precoding matrix (Q; P). in accordance with an embodiment of the invention, the method comprises organizing the plurality of subscriber lines into a first group of subscriber lines (GA) and a second group of subscriber lines (GB), the first group of subscriber lines at least comprising all the subscriber lines of the plurality of subscriber lines that do not support non-linear precoding operation (L2; L4) and the second group of subscriber lines comprising the remaining subscriber lines of the plurality of subscriber lines (L1; L3), scaling first signals (U A ) to be transmitted over respective ones of the first group of subscriber lines to confine respective intermediate transmit power levels at the input of the modulo unit and further to bypass or make ineffective the operation of the modulo unit, and processing the so scaled first signals (U A ') and second signals (UB) to be transmitted over respective ones of the second group of subscriber lines through the first and second precoding stages. The present invention also relates to a non-linear precoder (21).
    • 本发明涉及通过非线性预编码器(21)联合处理要在多条用户线路(L1至L4)中的各个用户线路上发送的信号(U)的方法。 非线性预编码器包括:第一非线性预编码级(301; 301'),被配置为根据第一三角形预编码矩阵(L; M; N)并且包括模单位(Γ;γ) 第二线性预编码级(302; 302'),被配置为根据第二预编码矩阵(Q; P)进行操作。 根据本发明的实施例,该方法包括将多个用户线组织成第一组用户线路(GA)和第二组用户线路(GB),所述第一组用户线路至少包括所有用户线路 不支持非线性预编码操作(L2; L4)的多条用户线路的用户线路和包括多条用户线路(L1; L3)中的剩余用户线路的第二组用户线路,缩放第一信号( UA)通过第一组用户线路中的各个用户线路进行发送,以在模数单元的输入端限制各自的中间发射功率电平,并进一步绕过或使模数单元的操作无效,并且处理这样缩放的第一信号 (UA')和第二信号(UB),以通过第一和第二预编码级在相应的第二组用户线上传输。 本发明还涉及一种非线性预编码器(21)。