公开(公告)号：US20190280731A1

公开(公告)日：2019-09-12

申请号：US16424425

申请日：2019-05-28

申请人： Electronics and Telecommunications Research Institute

发明人： Seung-Chang BANG ,  Tae Joong KIM ,  Jae Heung KIM ,  Jung Im KIM ,  Jong Suk CHAE ,  Hyuck Jae LEE ,  Jae Ryong SHIM ,  Narm Hee LEE

IPC分类号： H04B1/7073 ,  H04J13/20 ,  H04J13/10 ,  H04J13/00

摘要： A method for converting source data to a channel-modulated signal having a plurality of pairs of in-phase (I) and quadrature-phase (Q) data in a mobile station, wherein the mobile station uses at least one channel, includes the steps of: a) encoding the source data to generate at least one data part and a control part; b) generating at least one spreading code to be allocated to the channel, wherein each spreading code is selected on the basis of a data rate of the data part and the control part and spreading codes are selected so that two consecutive pairs of the I and Q data are correspondent to two points located on same point or symmetrical with respect to a zero point on a phase domain; and c) spreading the control part and the data part by using the spreading code, to thereby generate the channel-modulated signal.

公开(公告)号：US20190253172A1

公开(公告)日：2019-08-15

申请号：US16274307

申请日：2019-02-13

申请人： QUALCOMM Incorporated

发明人： Seyong PARK ,  Jing LEI ,  Renqiu WANG ,  Joseph Binamira SORIAGA ,  Naga BHUSHAN ,  Tingfang JI

IPC分类号： H04J13/00 ,  H04J13/20 ,  H04J13/14 ,  H04J13/22 ,  H03M7/30

CPC分类号： H04J13/0044 ,  H03M7/3088 ,  H04J13/14 ,  H04J13/20 ,  H04J13/22

摘要： Aspects of the present disclosure provide techniques for variable spreading factor codes for non-orthogonal multiple access (NOMA). In an exemplary method, a base station assigns, from a first codebook of N short code sequences of length K, a subset of the short code sequences to a number of user equipments (UEs); receives a signal including uplink data or control signals from two or more of the UEs, wherein a first uplink data or control signal is sent using a first subsequence of one of the assigned short code sequences, and a second uplink data or control signal is sent using a second subsequence of one of the assigned short code sequences or using one of the assigned short code sequences; and decodes each uplink data or control signal in the signal based on the assigned short code sequences and subsequences of the assigned the short code sequences.

公开(公告)号：US10305536B2

公开(公告)日：2019-05-28

申请号：US14484533

申请日：2014-09-12

申请人： Electronics and Telecommunications Research Institute

发明人： Seung-Chang Bang ,  Tae Joong Kim ,  Jae Heung Kim ,  Jung Im Kim ,  Jong Suk Chae ,  Hyuck Jae Lee ,  Jae Ryong Shim ,  Narm Hee Lee

IPC分类号： H04B1/707 ,  H04B1/7073 ,  H04J13/00 ,  H04J13/10 ,  H04J13/20

摘要： A method for converting source data to a channel-modulated signal having a plurality of pairs of in-phase (I) and quadrature-phase (Q) data in a mobile station, wherein the mobile station uses at least one channel, includes the steps of: a) encoding the source data to generate at least one data part and a control part; b) generating at least one spreading code to be allocated to the channel, wherein each spreading code is selected on the basis of a data rate of the data part and the control part and spreading codes are selected so that two consecutive pairs of the I and Q data are correspondent to two points located on same point or symmetrical with respect to a zero point on a phase domain; and c) spreading the control part and the data part by using the spreading code, to thereby generate the channel-modulated signal.

公开(公告)号：US09490857B2

公开(公告)日：2016-11-08

申请号：US14925515

申请日：2015-10-28

申请人： III HOLDINGS 1, LLC

发明人： Anand P. Narayan ,  John K. Thomas ,  Eric S. Olson

IPC分类号： H04B1/12 ,  H04B1/7105 ,  H04B1/7107 ,  H04B1/7117 ,  H04B7/06 ,  H04B7/08 ,  H04J13/20 ,  H04J13/00 ,  H04B1/712

CPC分类号： H04B1/126 ,  H04B1/1027 ,  H04B1/1081 ,  H04B1/7105 ,  H04B1/7107 ,  H04B1/7117 ,  H04B1/712 ,  H04B7/0678 ,  H04B7/0891 ,  H04B2001/1045 ,  H04B2201/70719 ,  H04B2201/70979 ,  H04J13/0022 ,  H04J13/20

摘要： A receiver includes a first finger that receives a non-interference-cancelled signal and output first demodulated data, a first phase estimate, and a first PN code. The receiver also includes a second finger that selectively receives the non-interference-cancelled signal and a first interference-cancelled signal generated from the non-interference-cancelled signal based on the first phase estimate and the first PN code. The second finger also outputs second demodulated data.

摘要翻译： 接收机包括接收非干扰消除信号并输出​​第一解调数据的第一手指，第一相位估计和第一PN码。 所述接收机还包括第二手指，所述第二手指根据所述第一相位估计和所述第一PN码选择性地接收所述非干扰消除信号和从所述非干扰消除信号产生的第一干扰消除信号。 第二手指也输出第二解调数据。

公开(公告)号：US09294239B2

公开(公告)日：2016-03-22

申请号：US14268136

申请日：2014-05-02

申请人： QUALCOMM Incorporated

发明人： Durga Prasad Malladi

IPC分类号： H04L5/00 ,  H04J13/00 ,  H04L5/06 ,  H04J13/20 ,  H04J13/16 ,  H04L27/26

CPC分类号： H04L5/0016 ,  H04J13/0062 ,  H04J13/16 ,  H04J13/20 ,  H04J2013/165 ,  H04L5/0026 ,  H04L5/0041 ,  H04L5/0051 ,  H04L5/06 ,  H04L27/2613

摘要： A system and method for hybrid FDM (frequency division multiplexing)-CDM (code division multiplexing) structure for single carrier control channels is provided. The hybrid FDM-CDM structure maximizes frequency diversity over the entire available bandwidth such that orthogonality between signals from users in a given cell is maintained. Thus, users in the given cell can transmit over a non-contiguous set of tones. Furthermore, the hybrid FDM-CDM structure maintains orthogonality of a pilot of users in different cells based on a despreading operation in the time domain.

摘要翻译： 提供了用于单载波控制信道的混合FDM（频分复用）-CDM（码分复用）结构的系统和方法。 混合FDM-CDM结构使整个可用带宽上的频率分集最大化，使得维持给定小区中来自用户的信号之间的正交性。 因此，给定小区中的用户可以通过不连续的一组音调进行发送。 此外，混合FDM-CDM结构基于时域中的解扩操作，保持不同小区中的用户导频的正交性。

公开(公告)号：US20160057755A1

公开(公告)日：2016-02-25

申请号：US14779443

申请日：2014-03-17

申请人： ALCATEL LUCENT

发明人： Thorsten Wild ,  Andre Fonseca Dos Santos ,  Frank Schaich

IPC分类号： H04W72/04 ,  H04B1/7143 ,  H04J13/00 ,  H04W4/00 ,  H04J13/20

CPC分类号： H04W72/0466 ,  H04B1/7143 ,  H04J13/004 ,  H04J13/20 ,  H04J2013/0081 ,  H04L5/0048 ,  H04L27/2602 ,  H04W4/70 ,  H04W8/26 ,  H04W74/0833

摘要： An apparatus and method for detecting an implicit user ID of a received data packet is disclosed. When a data packet is received, at least one frequency on which the data packet has been received is determined. Further, a spreading code sequence of the data packet is determined, and the at least one determined frequency and the determined spreading code sequence are used to determine an implicit user ID of the data packet.

摘要翻译： 公开了一种用于检测接收到的数据分组的隐式用户ID的装置和方法。 当接收到数据分组时，确定已经接收到数据分组的至少一个频率。 此外，确定数据分组的扩展码序列，并且使用至少一个确定的频率和所确定的扩展码序列来确定数据分组的隐式用户ID。

公开(公告)号：US20050243763A1

公开(公告)日：2005-11-03

申请号：US11152084

申请日：2005-06-15

申请人： Antti Toskala ,  Zhi-Chun Honkasalo

发明人： Antti Toskala ,  Zhi-Chun Honkasalo

IPC分类号： H04B1/707 ,  H04J11/00 ,  H04J13/00 ,  H04J13/20 ,  H04W28/22 ,  H04W88/08 ,  H04Q7/00

CPC分类号： H04J13/20 ,  H04B1/707 ,  H04B2201/70701 ,  H04B2201/70703 ,  H04J13/004 ,  H04J13/0044 ,  H04W28/22 ,  H04W88/08

摘要： A method for transmitting data from a radio network subsystem to user equipment in a mobile telephone system, a radio network subsystem and user equipment. In the method, the radio network subsystem transmits a dedicated control channel to the user equipment and a dedicated traffic channel of variable data transmission rate to the user equipment. During transmission, the radio network subsystem spreads each channel with a spreading code, and the spreading code used to spread the traffic channel is changed according to the required data transmission rate. According to the invention, each control channel frame indicates the spreading code with which the corresponding traffic channel is spread when transmitted.

摘要翻译： 一种从无线电网络子系统向移动电话系统中的用户设备发送数据的方法，无线电网络子系统和用户设备。 在该方法中，无线网络子系统向用户设备发送专用控制信道，向用户设备发送可变数据传输速率的专用业务信道。 在传输期间，无线电网络子系统以扩展码扩展每个信道，并且用于扩展业务信道的扩展码根据所需的数据传输速率而改变。 根据本发明，每个控制信道帧指示当发送时相应业务信道被扩展的扩展码。

公开(公告)号：US10715269B2

公开(公告)日：2020-07-14

申请号：US16233048

申请日：2018-12-26

申请人： Xi'an Creation Keji Co., Ltd.

发明人： Weiguo Zhang ,  Jiawei Yan

IPC分类号： H04J13/20 ,  H04J13/18 ,  H04L5/00 ,  H04L5/02 ,  H04J13/00 ,  H04J13/12

摘要： The present invention discloses a channel frequency spreading device for a CDMA system, including: an orthogonal sequence generating module, configured to generate orthogonal sequence sets; a storage module, connected to the orthogonal sequence generating module, and configured to store the orthogonal sequence sets; a control module, connected to the storage module, and configured to read available orthogonal sequences in the orthogonal sequence sets when receiving a user request control signal; and a channel machine, connected to the control module, and configured to receive user request data, and perform frequency spreading on the user request data according to the available orthogonal sequences and then output. The channel frequency spreading device for a CDMA system can improve the number of the sequences allocated by the cell, and solve the problem that the excessive users cannot communicate normally.

公开(公告)号：US20190222344A1

公开(公告)日：2019-07-18

申请号：US16233048

申请日：2018-12-26

申请人： Xi'an Creation Keji Co., Ltd.

发明人： WEIGUO ZHANG ,  JIAWEI YAN

IPC分类号： H04J13/20 ,  H04L5/00 ,  H04J13/00 ,  H04L5/02

摘要： The present invention discloses a channel frequency spreading device for a CDMA system, including: an orthogonal sequence generating module, configured to generate orthogonal sequence sets; a storage module, connected to the orthogonal sequence generating module, and configured to store the orthogonal sequence sets; a control module, connected to the storage module, and configured to read available orthogonal sequences in the orthogonal sequence sets when receiving a user request control signal; and a channel machine, connected to the control module, and configured to receive user request data, and perform frequency spreading on the user request data according to the available orthogonal sequences and then output. The channel frequency spreading device for a CDMA system can improve the number of the sequences allocated by the cell, and solve the problem that the excessive users cannot communicate normally.

公开(公告)号：US09544044B2

公开(公告)日：2017-01-10

申请号：US12966931

申请日：2010-12-13

申请人： Anand P. Narayan ,  Eric S. Olson ,  John K. Thomas

发明人： Anand P. Narayan ,  Eric S. Olson ,  John K. Thomas

IPC分类号： H03D1/04 ,  H03D1/06 ,  H03K5/01 ,  H03K6/04 ,  H04B1/10 ,  H04L1/00 ,  H04L25/08 ,  H04B7/08 ,  H04B1/7105 ,  H04B1/7107 ,  H04B1/7117 ,  H04B7/06 ,  H04J13/20 ,  H04B1/712

CPC分类号： H04B1/126 ,  H04B1/1027 ,  H04B1/1081 ,  H04B1/7105 ,  H04B1/7107 ,  H04B1/7117 ,  H04B1/712 ,  H04B7/0678 ,  H04B7/0891 ,  H04B2001/1045 ,  H04B2201/70719 ,  H04B2201/70979 ,  H04J13/0022 ,  H04J13/20

摘要： The present invention provides systems and methods for parallel interference suppression. In one embodiment of the invention, a processing engine is used to substantially cancel a plurality of interfering signals within a received signal. The processing engine includes a plurality of matrix generators that are used to generate matrices, each matrix comprising elements of a unique interfering signal selected for cancellation. The processing engine also includes one or more processors that use the matrices to generate cancellation operators. A plurality of applicators applies the cancellation operators to parallel but not necessarily unique input signals to substantially cancel the interfering signals from the input signals. These input signals may include received signals, interference cancelled signals and/or PN codes.

摘要翻译： 本发明提供了用于并行干扰抑制的系统和方法。 在本发明的一个实施例中，处理引擎用于基本上消除接收信号内的多个干扰信号。 处理引擎包括用于生成矩阵的多个矩阵生成器，每个矩阵包括被选择用于取消的唯一干扰信号的元素。 处理引擎还包括使用矩阵来生成取消操作符的一个或多个处理器。 多个施加器将取消操作者应用于并行但不一定是唯一的输入信号，以基本上抵消来自输入信号的干扰信号。 这些输入信号可以包括接收信号，干扰消除信号和/或PN码。