公开(公告)号：US11770830B2

公开(公告)日：2023-09-26

申请号：US16619574

申请日：2018-06-05

申请人： Telefonaktiebolaget LM Ericsson (publ)

发明人： Fredrik Lindqvist ,  Robert Baldemair ,  Jung-Fu Cheng ,  Sorour Falahati ,  Havish Koorapaty

IPC分类号： H04W72/21 ,  H04L5/00 ,  H04L5/10 ,  H04L27/20 ,  H04L27/227 ,  H04L27/26

CPC分类号： H04W72/21 ,  H04L5/0051 ,  H04L5/10 ,  H04L27/2035 ,  H04L27/227 ,  H04L27/2607

摘要： A method, wireless device and network node are configured to generate or process a control channel, having two multiplexed sequences based on a base sequence. In some embodiments, a method includes sampling even samples of the base sequence and modulating the sampled even samples to create a first control channel sequence. The method includes performing a second sampling of odd samples of the base sequence to create a second control channel sequence. The method also includes frequency division multiplexing the first and second control channel sequences to produce the control channel.

公开(公告)号：US20190238367A1

公开(公告)日：2019-08-01

申请号：US16263250

申请日：2019-01-31

申请人： QUALCOMM Incorporated

发明人： Jing Lei ,  Renqiu Wang ,  Seyong Park ,  Naga Bhushan ,  Jay Kumar Sundararajan ,  Joseph Binamira Soriaga ,  Tingfang Ji

IPC分类号： H04L25/02 ,  H04L27/227 ,  H04J13/00

CPC分类号： H04L25/0204 ,  H03M13/1505 ,  H04J13/0014 ,  H04J13/0033 ,  H04J13/0059 ,  H04L27/227

摘要： Methods, systems, and devices for wireless communications are described that provide for concurrent reference signal transmissions using common resources, such as demodulation reference signal (DMRS) transmissions, from a number of non-orthogonal multiple access (NOMA) transmitters. Different transmitters may use different sequences for reference signal transmissions, which may allow a receiver, such as a wireless base station, to decode the reference signal transmissions for each NOMA transmitter and perform channel estimation for each NOMA transmitter. The reference signal transmissions may be asynchronous with a bounded timing offset or quasi-synchronous, and the reference signal sequence selection may provide for relatively reliable channel estimation and coherent demodulation.

公开(公告)号：US09992050B2

公开(公告)日：2018-06-05

申请号：US15388526

申请日：2016-12-22

申请人： Keysight Technologies, Inc.

发明人： Hong-Wei Kong ,  Ya Jing

IPC分类号： H04L27/26 ,  H04B7/0413 ,  H04B7/06 ,  H04L7/00 ,  H04L7/04 ,  H04L27/227 ,  H04L27/38 ,  H04L27/00

CPC分类号： H04L27/2602 ,  H04B7/0413 ,  H04B7/06 ,  H04L7/0091 ,  H04L7/04 ,  H04L27/227 ,  H04L27/3818 ,  H04L2027/0016 ,  H04L2027/0024

摘要： The multi-channel signal processing device includes a multi-channel continuous waveform (CW) phase shifter module configured to generate phase control and filter interference therein for multiple local oscillator (LO) signals at a same frequency, a multi-channel up-converter module configured to up-convert the multiple LO signals to a desired frequency and filter respective image signals therein, and a multi-channel wideband mixer module configured to receive and mix the up-converted LO signals at the desired frequency from the multi-channel up-converter module with radio frequency (RF) signals.

公开(公告)号：US09729365B2

公开(公告)日：2017-08-08

申请号：US15123057

申请日：2015-02-02

申请人： Robert Bosch GmbH

发明人： Detlev Nyenhuis

IPC分类号： H04L27/22 ,  H04L27/227 ,  H03D3/00 ,  H04B1/16 ,  H04B1/30 ,  H04L27/20

CPC分类号： H04L27/227 ,  H03D3/007 ,  H04B1/16 ,  H04B1/1646 ,  H04B1/30 ,  H04H2201/13 ,  H04L27/2014

摘要： A DARC signal demodulation circuit assemblage for recovering a DARC signal (DARC data) from an FM multiplex transmission signal includes: a pilot tone regulation circuit to obtain first and second mutually orthogonal oscillation synchronous with a stereo pilot tone encompassed by the FM multiplex transmission signal; a frequency quadruplication section for obtaining third and fourth mutually orthogonal oscillation having a frequency quadrupled as to the stereo pilot tone; a first multiplication section for obtaining a first multiplication signal from the FM multiplex transmission signal and from the third oscillation; a second multiplication section for obtaining a second multiplication signal from the FM multiplex transmission signal and from the fourth oscillation; first/second low-pass filters for obtaining first/second DARC signal components by low-pass filtration of the first and second multiplication signals; and an FM demodulation section for obtaining the DARC signal from a frequency demodulation of the first/second DARC signal components.

公开(公告)号：US20160373280A1

公开(公告)日：2016-12-22

申请号：US15123057

申请日：2015-02-02

申请人： ROBERT BOSCH GMBH

发明人： Detlev NYENHUIS

IPC分类号： H04L27/227 ,  H04B1/16

CPC分类号： H04L27/227 ,  H03D3/007 ,  H04B1/16 ,  H04B1/1646 ,  H04B1/30 ,  H04H2201/13 ,  H04L27/2014

摘要： A DARC signal demodulation circuit assemblage for recovering a DARC signal (DARC data) from an FM multiplex transmission signal includes: a pilot tone regulation circuit to obtain first and second mutually orthogonal oscillation synchronous with a stereo pilot tone encompassed by the FM multiplex transmission signal; a frequency quadruplication section for obtaining third and fourth mutually orthogonal oscillation having a frequency quadrupled as to the stereo pilot tone; a first multiplication section for obtaining a first multiplication signal from the FM multiplex transmission signal and from the third oscillation; a second multiplication section for obtaining a second multiplication signal from the FM multiplex transmission signal and from the fourth oscillation; first/second low-pass filters for obtaining first/second DARC signal components by low-pass filtration of the first and second multiplication signals; and an FM demodulation section for obtaining the DARC signal from a frequency demodulation of the first/second DARC signal components.

摘要翻译： 用于从FM多路传输信号恢复DARC信号（DARC数据）的DARC信号解调电路组件包括：导频音调节电路，用于获得与由FM多路传输信号包围的立体声导频音同步的第一和第二相互正交的振荡; 频率四重部分，用于获得频率为立体声导频音的四倍的第三和第四相互正交的振荡; 第一乘法部分，用于从FM多路传输信号和第三振荡获得第一相乘信号; 第二乘法部分，用于从FM多路传输信号和第四振荡获得第二乘法信号; 第一/第二低通滤波器，用于通过第一和第二相乘信号的低通滤波获得第一/第二DARC信号分量; 以及FM解调部分，用于从第一/第二DARC信号分量的频率解调获得DARC信号。

公开(公告)号：US09520988B1

公开(公告)日：2016-12-13

申请号：US14817934

申请日：2015-08-04

申请人： QUALCOMM Incorporated

发明人： George Alan Wiley ,  Ohjoon Kwon

IPC分类号： H04L7/00 ,  H04L27/20 ,  H04L27/227 ,  H04B1/40

CPC分类号： H04L7/0087 ,  H04B1/40 ,  H04L7/0083 ,  H04L25/14 ,  H04L25/4923 ,  H04L27/0002 ,  H04L27/20 ,  H04L27/227

摘要： Systems, methods and apparatus are described that facilitate transmission of data, particularly between two devices within an electronic apparatus. Two Integrated Circuit (IC) devices may be collocated in an electronic apparatus and communicatively coupled through a 3-wire, 3-phase interface. A data transfer method operational on a first of the two or more devices includes determining presence of a misalignment of the 3-wire communication link involving two or more wires, and inverting a first bit of a 3-bit symbol encoded in a transition of signaling state of the 3-wire communication link when the misalignment of the 3-wire communication link is determined to affect phase relationships between two or more signals carried on the three wires, such that inverting the first bit corrects the phase relationships between the two or more signals. A version of the 3-phase signal may be communicated in a different phase state through each of three wires.

摘要翻译： 描述了促进数据传输的系统，方法和装置，特别是在电子设备内的两个设备之间。 两个集成电路（IC）器件可以并置在电子设备中并且通过3线，3相接口通信耦合。 在两个或更多个设备中的第一个上可操作的数据传输方法包括确定存在涉及两条或更多条导线的3线通信链路的未对准，并且反转信令转换中编码的3位符号的第一位 当确定3线通信链路的未对准被确定为影响在三条线路上承载的两个或更多个信号之间的相位关系时，3线通信链路的状态，使得反转第一比特校正两个或更多个之间的相位关系 信号。 三相信号的版本可以通过三条线中的每一条在不同的相位状态下传送。

公开(公告)号：US20160315656A1

公开(公告)日：2016-10-27

申请号：US15106141

申请日：2014-12-10

申请人： NORDIC SEMICONDUCTOR ASA

发明人： David Alexandre Engelien-Lopes ,  Sverre Wichlund ,  Phil Corbishley

IPC分类号： H04B1/7087 ,  H04W4/00 ,  H04L5/00 ,  H04B17/336

CPC分类号： H04B1/7087 ,  H04B17/336 ,  H04B2201/69 ,  H04L5/006 ,  H04L27/0014 ,  H04L27/227 ,  H04L2027/0026 ,  H04L2027/0034 ,  H04L2027/0046 ,  H04W4/80

摘要： A digital radio receiver 54 is adapted to receive radio signals which are modulated using continuous phase modulation. The receiver comprises means for receiving an analogue radio signal having a carrier frequency, a plurality of correlators 6, 8 each corresponding to a different bit sequence which share a common estimator 4 for estimating a frequency offset between said carrier frequency and a nominal carrier frequency, and means 12 for determining which of said correlators 6, 8 produces a desired output signal.

摘要翻译： 数字无线电接收机54适于接收使用连续相位调制调制的无线电信号。 接收机包括用于接收具有载波频率的模拟无线电信号的装置，多个相关器6,8分别对应于不同的比特序列，共享用于估计所述载波频率和标称载波频率之间的频率偏差的公共估计器4， 以及用于确定哪个相关器6,8产生期望的输出信号的装置12。

公开(公告)号：US09276790B2

公开(公告)日：2016-03-01

申请号：US14585305

申请日：2014-12-30

申请人： BROADCOM CORPORATION

发明人： Jun Zheng ,  Min Chuin Hoo ,  Vinko Erceg

IPC分类号： H04L27/20 ,  H04L27/26 ,  H04L5/00 ,  H04L25/03

CPC分类号： H04L27/227 ,  H04B7/084 ,  H04L5/0026 ,  H04L5/0048 ,  H04L25/03866 ,  H04L27/20 ,  H04L27/2613 ,  H04L27/2621

摘要： Phase rotation for preambles within multiple user, multiple access, and/or MIMO wireless communications. An appropriately designed phase rotation vector and/or appropriately designed cyclic shift delays (CSDs) are applied to respective sub-band components of the preamble. With appropriately designed CSDs, certain fields within the preamble are not modified. For example, a legacy short training field (L-STF) of the preamble is not changed when using appropriately designed CSDs. The respective CSDs may be implemented as integer multiples of a common CSD (e.g., 0×CSD, 1×CSD, 2×CSD, etc. such that one of the values of such a CSD vector may be zero [0], another may be the common CSD itself, etc.). Also, by employing an appropriately designed phase rotation vector and integer multiples of a CSD to a preamble, the respective peak to average power ratio (PAPR) between different respective fields within the preamble may be minimized.

公开(公告)号：US09276704B1

公开(公告)日：2016-03-01

申请号：US14570566

申请日：2014-12-15

申请人： Intel Corporation

发明人： David Arditti Ilitzky ,  Edgar Borrayo Sandoval ,  Arturo Veloz ,  Rocio Hernandez Fabian

IPC分类号： H03H7/30 ,  H03H7/40 ,  H03K5/159 ,  H04L1/00 ,  H04L25/03 ,  H04B1/10 ,  H04W84/18

CPC分类号： H04L1/0054 ,  H04B1/10 ,  H04L25/03006 ,  H04L27/001 ,  H04L27/2003 ,  H04L27/227 ,  H04W84/18

摘要： A wireless device, and corresponding method, having a receiver configured to receive a signal having in-phase and quadrature components; a non-linear filter demodulator configured to translate noncoherently the in-phase and quadrature components into a phase domain signal; a coherence acquisition unit configured to estimate and correct at least one coherence parameter based on the in-phase and quadrature components and the phase domain signal; and a detector configured to detect information in the phase domain signal.

摘要翻译： 一种无线设备和相应的方法，具有接收器，其被配置为接收具有同相和正交分量的信号; 非线性滤波器解调器，被配置为将非同相和正交分量非相干地转换成相位域信号; 相干获取单元，被配置为基于同相和正交分量和相位域信号来估计和校正至少一个相干参数; 以及检测器，被配置为检测相位域信号中的信息。

公开(公告)号：US20150236796A1

公开(公告)日：2015-08-20

申请号：US14426054

申请日：2013-07-18

申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： Fukutaro Hamaoka ,  Takeshi Seki ,  Toshiya Matsuda ,  Akira Naka

IPC分类号： H04B10/61 ,  H04L27/227 ,  H04L27/22

CPC分类号： H04B10/6165 ,  H04L25/03 ,  H04L25/06 ,  H04L27/223 ,  H04L27/227

摘要： A digital signal processor which performs digital signal processing of a digital signal includes a statistical analysis method which calculates a moving average and a standard deviation from the digital signal, performs statistical decision deciding whether or not the digital signal is within a predetermined range obtained from the moving average and the standard deviation, and corrects the digital signal outside the range within the range. Statistical analysis of the digital signal is performed, thereby suppressing transient changes without increasing the number of times of averaging during the digital signal processing.

摘要翻译： 执行数字信号的数字信号处理的数字信号处理器包括：计算与数字信号的移动平均值和标准偏差的统计分析方法，执行统计判定，判定数字信号是否在从 移动平均值和标准偏差，并将范围内的数字信号校正。 执行数字信号的统计分析，由此抑制瞬时变化而不增加在数字信号处理期间的平均次数。