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1. 发明申请

WO2019118438A1 PHASE TRACKING REFERENCE SIGNAL FOR SUB-SYMBOL PHASE TRACKING 审中-公开
公开(公告)号：WO2019118438A1
公开(公告)日：2019-06-20
申请号：PCT/US2018/064917
申请日：2018-12-11
申请人： QUALCOMM INCORPORATED
发明人： BAI, Tianyang , CEZANNE, Juergen , SUBRAMANIAN, Sundar , LI, Junyi
IPC分类号： H04L27/26
CPC分类号： H04L27/2628 , G06F17/141 , H04B1/04 , H04B1/16 , H04B1/40 , H04L27/2613 , H04L27/2636
摘要： Methods, systems, and devices for wireless communications are described for phase error estimation and correction with sub-symbol resolution. A transmitting device may precode symbols (e.g., phase tracking reference signal (PT-RS) symbols) using a discrete Fourier transform (DFT). The transmitting device may map the DFT-precoded symbols to sets of adjacent subcarriers of a wireless signal, and may map other symbols to other subcarriers of the wireless signal. A receiving device may receive the wireless signal and may compare time domain representations of the DFT-precoded symbols with time domain representations of known reference symbols. The receiving device may estimate a phase error with sub-symbol resolution in the time domain based at least in part on the comparison, and may apply a phase correction in either the time or frequency domain to the other symbols.

2. 发明申请

WO2019095057A1 TWO-TONE IN-PHASE PI/2 BINARY PHASE-SHIFT KEYING COMMUNICATION 审中-公开
公开(公告)号：WO2019095057A1
公开(公告)日：2019-05-23
申请号：PCT/CA2018/051444
申请日：2018-11-14
申请人： SIERRA WIRELESS, INC.
发明人： VOS, Gustav Gerald
IPC分类号： H04L27/18 , H04J1/00 , H04J11/00 , H04L27/26
CPC分类号： H04L27/2636 , H04L5/0007 , H04L5/0053 , H04L27/2614 , H04L27/2628 , H04L27/3444
摘要： A method and apparatus for communication, e.g. in an LTE system, that uses two tones with an in-phase pi/2 BPSK modulation with single carrier frequency-division multiple access (SC-FDMA). Pairs of input bits are converted to symbols using pi/2 BPSK, with each one of the pair of bits converted using a same symbol constellation, and successive pairs of bits converted using alternatingly different symbol constellations. The two constellations may be identical after a pi/2 radian rotation. Pairs of symbols corresponding to pairwise converted bits may be treated as the symbols for a pair of tones of a subsequent SC-FDMA, OFDMA, or similar processing operation.

3. 发明申请

WO2017069924A1 METHOD AND APPARATUS FOR PROVIDING TIME SYNCHRONIZATION IN A DIGITAL TELEVISION SYSTEM 审中-公开
标题翻译：在数字电视系统中提供时间同步的方法和设备
公开(公告)号：WO2017069924A1
公开(公告)日：2017-04-27
申请号：PCT/US2016/054603
申请日：2016-09-30
申请人： THOMSON LICENSING
发明人： STEWART, John Sidney
IPC分类号： H04L5/00 , H04H20/00 , H04L1/00 , H04L7/00 , H04L27/26
CPC分类号： H04L5/0092 , H04H60/40 , H04L1/0007 , H04L27/2628
摘要： Methods (900, 1000) and apparatuses (110, 120, 400) are provided for transmitting and receiving a signal. The method (900) of transmitting a signal includes modulating (920) data into a plurality of modulation symbols to generate a signal, the data including time synchronization information including one of a time offset parameter and a frame length parameter selected according to a frame length mode parameter, and transmitting (930) the signal over a communication medium. The method (1000) of receiving a signal includes receiving (1010) a signal over a communication medium, and demodulating (1020) the signal to generate a plurality of demodulated symbols, the demodulated symbols including data, the data including time synchronization information including one of a time offset parameter and a frame length parameter selected according to a frame length mode parameter.
摘要翻译：提供方法（900,1000）和装置（110,120,400）以用于发送和接收信号。传输信号的方法（900）包括将数据调制（920）成多个调制符号以生成信号，所述数据包括时间同步信息，所述时间同步信息包括根据帧长度选择的时间偏移参数和帧长度参数之一模式参数，并且通过通信介质发送（930）该信号。接收信号的方法（1000）包括通过通信介质接收（1010）信号，并解调（1020）该信号以生成多个解调符号，解调符号包括数据，该数据包括时间同步信息，该时间同步信息包括一个时间偏移参数和根据帧长度模式参数选择的帧长度参数。

4. 发明申请

WO2017058801A1 IMPROVED SIGNAL DETECTION IN DYNAMIC CHANNELS WITH HIGH CARRIER FREQUENCY OFFSET 审中-公开
标题翻译：具有高载波频率的动态通道改进的信号检测
公开(公告)号：WO2017058801A1
公开(公告)日：2017-04-06
申请号：PCT/US2016/053978
申请日：2016-09-27
申请人： RAZA, Zahir , SIMON, Michael J. , SHELBY, Kevin A. , KANNAPPA, Sandeep Mavuduru
发明人： RAZA, Zahir , SIMON, Michael J. , SHELBY, Kevin A. , KANNAPPA, Sandeep Mavuduru
IPC分类号： H04L27/38 , H04L27/227 , H04L27/233
CPC分类号： H04W56/004 , H04L1/0058 , H04L5/0048 , H04L27/227 , H04L27/233 , H04L27/2628 , H04L27/3818 , H04L27/3845 , H04W56/001 , H04W56/0055
摘要： Method and apparatus for signal detection in dynamic channels with high carrier frequency offset are provided. A coherent detector and a non-coherent detector are operated in parallel on a block of samples of an input signal determine respective time offset candidates of the Input signal. The time offset candidate obtained from the non-coherent detector is used to determine a frequency offset candidate of the input signal.
摘要翻译：提供了具有高载波频率偏移的动态信道中的信号检测方法和装置。相干检测器和非相干检测器在输入信号的样本块上并行操作，确定输入信号的相应时间偏移候选。使用从非相干检测器获得的时间偏移候选来确定输入信号的频率偏移候选。

5. 发明申请

WO2017005295A1 RESOURCE ALLOCATION FOR DATA TRANSMISSION IN WIRELESS SYSTEMS 审中-公开
标题翻译：资源分配在无线系统中的数据传输
公开(公告)号：WO2017005295A1
公开(公告)日：2017-01-12
申请号：PCT/EP2015/065378
申请日：2015-07-06
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
发明人： BALDEMAIR, Robert , PARKVALL, Stefan , DAHLMAN, Erik , WERNER, Karl , BJÖRKEGREN, Håkan
IPC分类号： H04L5/00 , H04L27/00 , H04W16/14 , H04L1/00
CPC分类号： H04L27/0008 , H04L1/00 , H04L5/0007 , H04L5/0028 , H04L5/006 , H04L5/0064 , H04L5/0066 , H04L5/0085 , H04L5/0087 , H04L5/0091 , H04L5/0092 , H04L27/0012 , H04L27/2607 , H04L27/2628 , H04W16/14 , H04W72/0446 , H04W72/0453
摘要： Techniques are disclosed for allocating time-frequency resources in a system that uses multiple multicarrier modulation numerologies. According to one aspect, a method in a first wireless node comprises allocating (1310) time-frequency resources for use by a second wireless node, where said allocating comprises selecting, for use in multicarrier modulation in the allocated time-frequency resources, one of two or more subcarrier bandwidths that the second wireless node is adapted to use for modulating or demodulating of data. In some embodiments, the method further comprises sending (1320) resource allocation information to the second wireless node, the resource allocation information identifying the allocated time-frequency resources.
摘要翻译：公开了用于在使用多个多载波调制数学的系统中分配时间 - 频率资源的技术。根据一个方面，第一无线节点中的方法包括分配（1310）时间频率资源供第二无线节点使用，其中所述分配包括选择用于所分配的时间 - 频率资源中的多载波调制中的一个第二无线节点适于用于调制或解调数据的两个或多个子载波带宽。在一些实施例中，该方法还包括向第二无线节点发送（1320）资源分配信息，所述资源分配信息标识所分配的时间 - 频率资源。

6. 发明申请

WO2016200186A1 METHOD FOR DETERMINING RESERVED TONES AND TRANSMITTER FOR PERFORMING PAPR REDUCTION USING TONE RESERVATION 审中-公开
标题翻译：用于确定使用音调预留功能进行PAPR降低的保留的音调和发送器的方法
公开(公告)号：WO2016200186A1
公开(公告)日：2016-12-15
申请号：PCT/KR2016/006142
申请日：2016-06-09
申请人： SAMSUNG ELECTRONICS CO., LTD.
发明人： OH, Young-ho , LEE, Hak-ju
IPC分类号： H04L27/26
CPC分类号： H04L27/262 , H04L5/001 , H04L27/2628
摘要： A method of determining reserved tones to be used for reduction of a peak to average power ratio (PAPR) of a signal includes: randomly selecting carrier indices for the reserved tones and generating a kernel signal based on the randomly selected carrier indices for the reserved tones; calculating a comparison reference average value of the kernel signal, comparing the calculated comparison reference average value with a prestored comparison reference average value, and preliminarily determining carrier indices of the reserved tones based on the comparison; re-arranging an order of the preliminarily determined carrier indices of the reserved tones; calculating comparison reference average values of kernel signals generated by changing each of the re-arranged carrier indices of the reserved tones, and finally determining carrier indices of the reserved tones which generate a kerneal signal having the smallest comparison reference average value among the comparison reference average values as indices of the reserved tones.
摘要翻译：确定要用于降低信号的峰值与平均功率比（PAPR）的保留音调的方法包括：随机选择用于所保留的音调的载波索引并基于所选择的保留音调的随机选择的载波索引生成内核信号 ; 计算核心信号的比较参考平均值，将计算出的比较参考平均值与预先存储的比较参考平均值进行比较，并且基于比较预先确定保留音的载波索引; 重新安排预先确定的保留音的载波索引的顺序; 计算通过改变保留音调的每个重新排列的载波索引而生成的核心信号的比较参考平均值，最后确定生成具有比较参考平均值中的最小比较参考平均值的核心信号的保留音调的载波索引值作为预留音的索引。

7. 发明申请

WO2016185820A1 光通信システム及び光通信方法审中-公开
标题翻译：光通信系统和光通信方法
公开(公告)号：WO2016185820A1
公开(公告)日：2016-11-24
申请号：PCT/JP2016/061261
申请日：2016-04-06
申请人：日本電信電話株式会社
发明人：柴田　直剛 , 桑野　茂 , 鎌本　優 , 守谷　健弘 , 寺田　純
IPC分类号： H04J11/00 , H03M7/30 , H04B10/2575
CPC分类号： H04B10/2575 , H03M7/30 , H04J11/00 , H04L27/2628
摘要：光通信システムは、分割された基地局の機能を備える信号処理装置と無線装置とを備え、信号処理装置と無線装置との間においてデジタルＲｏＦ（Radio over Fiber）伝送により所定サイズのＩＦＦＴ（Inverse Fast Fourier Transform）後の信号に対してサイクリックプレフィックスが付加された周期的なシンボル系列を伝送し、信号処理装置及び無線装置のそれぞれは送信部及び受信部を備え、送信部は、シンボル系列の開始位置及びシンボル系列を構成する各シンボルの長さに関するシンボル情報を取得し、取得したシンボル情報に基づいてシンボル系列の一部を分離してシンボル毎の長さを揃える第１分離部と、分離されたシンボル系列の一部を除いた圧縮対象となるシンボルを圧縮する圧縮部とを備え、受信部は、圧縮されたシンボルを伸張してシンボルを復元する伸張部を備える。
摘要翻译：该光通信系统具有：分离基站功能的信号处理装置; 和无线设备。通过光纤（RoF）传输的数字无线电用于在信号处理设备和无线设备之间传送通过将循环前缀添加到已经经过快速傅里叶逆变换（IFFT）的信号而获得的周期性符号序列规定尺寸信号处理装置和无线装置各具有发送部和接收部。发送单元设置有：第一分离单元，其获取与符号序列的开始位置相关的符号信息和形成符号序列的每个符号的长度，并且基于获取的符号信息，将一部分符号序列使每个符号的长度均匀; 以及压缩单元，其通过去除符号序列的分离部分来压缩获得的要被压缩的符号。接收单元设置有扩展单元，其扩展压缩符号以恢复符号。

8. 发明申请

WO2016132338A1 SYSTEM AND METHOD FOR ESTIMATING TIME OF ARRIVAL (TOA) 审中-公开
标题翻译：估计到达时间（TOA）的系统和方法
公开(公告)号：WO2016132338A1
公开(公告)日：2016-08-25
申请号：PCT/IB2016/050919
申请日：2016-02-19
申请人： NESTWAVE SAS , CHRABIEH, Rabih
发明人： CHRABIEH, Rabih , FRANOVICI, Bogdan , SLOCK, Dirk
IPC分类号： G01S11/02
CPC分类号： G01S5/06 , G01S5/0215 , G01S5/0221 , G01S5/0252 , G01S11/02 , H04B17/336 , H04L27/2628
摘要： A technique is provided for estimating time of arrival of a signal transmitted as a pulse and received as a sum of pulses. The received signal is filtered with a novel filter that lowers the early side lobes of the received signal to noise level. A first energy rise point is identified at a point of the main lobe of the filtered received signal, at which the energy is higher than the noise by a predetermined level. Starting from the identification of the first energy rise points, the time of arrival is estimated via curve matching, in which the shape of the filtered received signal is matched to the shape of composed by a sum of one or more reference curves that are shifted both in time and in energy. The reference curves are found by applying to the transmitted signal the same filter applied to the received signal.
摘要翻译：提供了一种用于估计作为脉冲发送并作为脉冲总和接收的信号的到达时间的技术。接收的信号用新的滤波器滤波，该滤波器将接收到的信号的早期旁瓣降低到噪声水平。在滤波的接收信号的主瓣的点处识别第一能量上升点，在该点处能量高于噪声预定水平。从识别第一能量上升点开始，通过曲线匹配来估计到达时间，其中滤波的接收信号的形状与由两个或两个以上的两个在时间和精力上。通过将发送的信号应用于应用于接收信号的相同滤波器来找到参考曲线。

9. 发明申请

WO2016125992A1 방송 신호 송수신 장치 및 방법 审中-公开
标题翻译：用于传播广播信号的装置和方法
公开(公告)号：WO2016125992A1
公开(公告)日：2016-08-11
申请号：PCT/KR2015/011795
申请日：2015-11-04
申请人： 엘지전자(주)
发明人： 김재형 , 고우석 , 홍성룡
IPC分类号： H04L27/26 , H04L1/00
CPC分类号： H04L27/2602 , H03M13/09 , H03M13/1102 , H03M13/152 , H03M13/255 , H03M13/2707 , H03M13/271 , H03M13/2906 , H04L1/0041 , H04L1/0052 , H04L1/0057 , H04L1/0065 , H04L1/0071 , H04L12/18 , H04L12/189 , H04L27/2607 , H04L27/2613 , H04L27/2628 , H04L27/265
摘要： 방송 신호 수신기가 개시된다. 본 발명에 따른 방송 신호 수신기는, 수신된 방송 신호에 대해 신호 검출 및 OFDM 복조를 수행하는 동기화/복조 모듈; 상기 방송 신호의 신호 프레임을 파싱하고 디인터리빙을 수행하는 프레임 파싱 및 디인터리빙 모듈; 상기 방송 신호의 적어도 하나의 PLP(Physical Layer Pipe)의 데이터를 비트 도메인으로 변환하고 FEC 디코딩을 수행하는 디매핑 및 디코딩 모듈; 및 상기 적어도 하나의 PLP의 데이터를 수신하여 데이터 스트림을 출력하는 아웃풋 프로세싱 모듈을 포함한다.
摘要翻译：公开了广播信号接收机。根据本发明的一个实施例的广播信号接收机包括：用于检测信号并对接收到的广播信号执行OFDM解调的同步/解调模块; 帧解析和解交织模块，用于解析广播信号的信号帧并对其进行解交织; 用于将广播信号的至少一个物理层管道（PLP）中的数据转换为比特域并执行FEC解码的解映射和解码模块; 以及输出处理模块，用于接收所述至少一个PLP的数据并输出数据流。

10. 发明申请

WO2016125991A1 방송 신호 송수신 장치 및 방법 审中-公开
标题翻译：用于传播广播信号的装置和方法
公开(公告)号：WO2016125991A1
公开(公告)日：2016-08-11
申请号：PCT/KR2015/011792
申请日：2015-11-04
申请人： 엘지전자(주)
发明人： 김재형 , 고우석 , 홍성룡
IPC分类号： H04N7/12 , H04N7/015
CPC分类号： H04L27/2602 , H03M13/09 , H03M13/1102 , H03M13/152 , H03M13/255 , H03M13/2707 , H03M13/271 , H03M13/2906 , H04L1/0041 , H04L1/0052 , H04L1/0057 , H04L1/0065 , H04L1/0071 , H04L12/18 , H04L12/189 , H04L27/2607 , H04L27/2613 , H04L27/2628 , H04L27/265
摘要： 방송 신호 송신기가 개시된다. 본 발명의 실시예에 따른 방송 신호 송신기는, 베이스밴드 포매팅을 수행하고 적어도 하나의 PLP(Physical Layer Pipe) 데이터를 출력하는 인풋 포매팅 모듈; 상기 PLP 데이터를 에러 정정 프로세싱하는 BICM 모듈; 상기 PLP 데이터를 인터리빙하고, 신호 프레임을 생성하는 프레이밍 및 인터리빙 모듈; 및 상기 신호 프레임에 프리앰블을 삽입하고 OFDM 변조를 수행하여 방송 신호를 생성하는 웨이브폼 생성 모듈을 포함한다.
摘要翻译：公开了一种广播信号发射机。根据本发明的一个实施例的广播信号发射机包括：用于格式化基带并输出至少一片物理层管道（PLP）的数据的输入格式化模块; 用于对PLP数据进行纠错处理的BICM模块; 成帧和交织模块，用于交织PLP数据并产生信号帧; 以及波形生成模块，用于将前导码插入信号帧并执行OFDM调制以产生广播信号。

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