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1. 发明申请

WO2018223438A1 METHOD AND APPARATUS FOR FINE TIMING OFFSET ESTIMATION 审中-公开
公开(公告)号：WO2018223438A1
公开(公告)日：2018-12-13
申请号：PCT/CN2017/090380
申请日：2017-06-27
申请人： HONG KONG APPLIED SCIENCE AND TECHNOLOGY RESEARCH INSTITUTE COMPANY LIMITED
发明人： CHAN, Ho Yin , LI, Chang , KWAN, Man Wai , ZHANG, Yuxian , TSANG, Kong Chau
IPC分类号： H04L27/26 , H04W56/00
CPC分类号： H04J11/0036 , H04L25/0204 , H04L25/0212
摘要： Provided is a method of determining timing of arrival of a signal on a path to a receiver in a mobile wireless communications system. The method comprises obtaining a channel impulse response (CIR) of a signal received at the receiver and deriving a power characteristic of the CIR. The method includes producing a first derivative of the power characteristic with respect to time, selecting some or all extrema from the first derivative of the power characteristic as indicative of candidate signal paths, and selecting one or more of said candidate signal paths. The method preferably includes determining timing of arrival of a signal on a first path of arrival at the receiver by assessing an energy value of each of said candidate signal paths against a threshold value.

2. 发明申请

WO2018205231A1 METHODS FOR PROVIDING CHANNEL STATE INFORMATION AND PRECODING INFORMATION BETWEEN A REMOTE RADIO UNIT AND A BASEBAND UNIT 审中-公开
公开(公告)号：WO2018205231A1
公开(公告)日：2018-11-15
申请号：PCT/CN2017/083976
申请日：2017-05-11
申请人： INTEL CORPORATION
发明人： YUAN, Fang
IPC分类号： H04W72/04
CPC分类号： H04L25/0204 , H04B7/00 , H04B7/0456 , H04B7/0615 , H04L5/005 , H04L5/0057 , H04W24/10 , H04W88/085
摘要： This disclosure relates to a method for providing channel state information (CSI) from a remote radio unit (RRU) to a baseband unit (BBU), the method comprising: determining CSI for each user equipment (UE) of a plurality of UEs based on a reference signal received from the respective UE; generating a plurality of correlation coefficients based on the CSI; and providing the plurality of correlation coefficients to the BBU.

3. 发明申请

WO2018094395A1 PHASE TRACKING FOR ENHANCED DIRECTIONAL MULTI-GIGABIT BEAM REFINEMENT PROTOCOL 审中-公开
公开(公告)号：WO2018094395A1
公开(公告)日：2018-05-24
申请号：PCT/US2017/062808
申请日：2017-11-21
申请人： INTEL IP CORPORATION
发明人： DA SILVA, Claudio , KOSLOFF, Jonathan , LOMAYEV, Artyom , CORDEIRO, Carlos , HAREL, Tom
IPC分类号： H04L1/06 , H04L25/02
CPC分类号： H04L25/0204 , H04B7/0617 , H04B7/0695 , H04L25/02 , H04L25/0224
摘要： Apparatuses, methods, and computer readable media for phase tracking for enhanced directional multi-gigabit beam refinement protocols are disclosed. An apparatus including processing circuitry is disclosed, the processing circuitry may be configured to encode a first physical layer convergence protocol (PLCP) protocol data unit (PPDU) to include a training (TRN) field, the TRN field including one or more TRN units, each TRN unit comprising a P number of TRN subfields for channel estimation (CE) and an M number of TRN subfields for beam forming (BF) training, where the TRN field including the P number of TRN subfields after a last TRN unit of the one or more TRN units. The processing circuitry may be further configured to configure the access point to transmit the first PPDU, and decode a second PPDU from a station, the second PPDU comprising feedback based on the TRN field.

4. 发明申请

WO2017189355A1 OVER-THE-AIR CHANNEL STATE INFORMATION ACQUIREMENT FOR A MASSIVE MIMO CHANNEL EMULATOR WITH OVER-THE-AIR CONNECTION 审中-公开
标题翻译：具有超空中连接的大规模MIMO信道仿真器的空中信道状态信息获取
公开(公告)号：WO2017189355A1
公开(公告)日：2017-11-02
申请号：PCT/US2017/028848
申请日：2017-04-21
申请人： LIANG, Ping
发明人： LIANG, Ping , LI, Boyu , ZHU, Dengkui
IPC分类号： H04B7/0452 , H04W24/06 , H04B17/391
CPC分类号： H04B17/101 , H04B7/0452 , H04B7/0617 , H04B7/0626 , H04B17/12 , H04B17/21 , H04B17/3912 , H04L5/0007 , H04L5/0048 , H04L25/0204 , H04L25/0224 , H04L27/2605 , H04L27/2613
摘要： This invention presents a channel emulator for testing a multi-user multiple input multiple output (MU-MIMO) wireless communication system using an over-the-air (OTA) connection between the antennas of a base station (BS) and the channel emulator. It uses pilot signals with special structures to estimate the channel matrix between the BS and the channel emulator, equalizes the channel when performing emulation of the channels between the BS and a plural of user equipment (UEs) in MU-MIMO communication.
摘要翻译：本发明提出了一种信道仿真器，用于使用基站的天线之间的空中（OTA）连接来测试多用户多输入多输出（MU-MIMO）无线通信系统（BS）和频道模拟器。它使用具有特殊结构的导频信号来估计BS和信道仿真器之间的信道矩阵，在MU-MIMO通信中执行BS和多个用户设备（UE）之间的信道仿真时均衡该信道。

5. 发明申请

WO2017184287A1 CHANNEL STATE INFORMATION ESTIMATION AND CHANNEL INFORMATION REPORTING 审中-公开
标题翻译：信道状态信息估计和信道信息报告
公开(公告)号：WO2017184287A1
公开(公告)日：2017-10-26
申请号：PCT/US2017/023510
申请日：2017-03-22
申请人： QUALCOMM INCORPORATED
发明人： ISLAM, Muhammad Nazmul , MUKKAVILLI, Krishna Kiran , CEZANNE, Juergen , LUO, Tao , SUBRAMANIAN, Sundar , LI, Junyi
IPC分类号： H04L5/00 , H04L25/02
CPC分类号： H04B7/0626 , H04L5/0023 , H04L5/0048 , H04L5/0057 , H04L25/0204 , H04L25/0228 , H04W72/0413 , H04W72/042 , H04W72/082
摘要： Methods, systems, and devices for wireless communication are described. A base station may transmit a phase noise correction reference signal (PC-RS) and a channel state information reference signal (CSI-RS) during a symbol period of a subframe. A user equipment (UE) may identify a first channel information using the PC-RS and the CSI-RS. The UE may transmit a channel information message to the base station that includes the first channel information. The first channel information may include a phase noise corrected channel measurement. The UE may the CSI-RS during the symbol period. Channel and phase noise estimates may be generated using a joint estimation based on the CSI-RS. The CSI-RS may be repeated periodically. In some cases, the UE may additionally or alternatively receive pilot tones that may include PC-RSs. The joint estimation may be further based on the pilot tones.
摘要翻译：描述了用于无线通信的方法，系统和设备。基站可以在子帧的符号周期期间发送相位噪声校正基准信号（PC-RS）和信道状态信息基准信号（CSI-RS）。用户设备（UE）可以使用PC-RS和CSI-RS来识别第一信道信息。 UE可以向包括第一信道信息的基站发送信道信息消息。第一信道信息可以包括经过相位噪声校正的信道测量。 UE可以在符号周期期间使用CSI-RS。信道和相位噪声估计可以使用基于CSI-RS的联合估计来生成。 CSI-RS可以周期性重复。在一些情况下，UE可以附加地或者可选地接收可以包括PC-RS的导频音。联合估计可以进一步基于导频音。

6. 发明申请

WO2017153079A1 SYNTHESIS DEVICE AND SYSTEM FOR GENERATING CHANNEL ESTIMATION FILTER COEFFICIENTS 审中-公开
标题翻译：用于产生信道估计滤波器系数的综合装置和系统
公开(公告)号：WO2017153079A1
公开(公告)日：2017-09-14
申请号：PCT/EP2017/051399
申请日：2017-01-24
申请人： INTEL IP CORPORATION
发明人： FECHTEL, Stefan
IPC分类号： H04L25/02
CPC分类号： H04L25/0204 , H04L25/021 , H04L25/022 , H04L25/0228 , H04L25/0244 , H04L25/0246 , H04L25/0248
摘要： A synthesis device (200) for generating a set of dynamic channel estimation (CE) filter coefficients (207) for a user equipment includes: a synthesis parameter generator (201), configured to generate a set of quasi-static synthesis parameters (202) from a reference symbol (RS) time-frequency pattern (300) and a set of slowly changing channel parameters (216), wherein the set of quasi-static synthesis parameters (202) is derived from a channel autocorrelation matrix ( R h ) and at least one cross-correlation vector ( r h ), and the set of slowly changing channel parameters (216) are derived from delay and Doppler power profiles (210) of a physical channel; a memory (203) configured to store the set of quasi-static synthesis parameters (202); and a CE filter coefficient generator (205), configured to generate a set of dynamic CE filter coefficients (w, 207) based on the set of quasi-static synthesis parameters (202), and a set of dynamic parameters (218) given by a cross modulation (D, 214) between RS signals from different cells (c) with cell-specific modulations, and a noise and interference SINR autocorrelation (Γ, 212).
摘要翻译：用于为用户设备生成一组动态信道估计（CE）滤波器系数（207）的合成设备（200）包括：合成参数生成器（201），被配置为生成一组来自参考符号（RS）时间 - 频率模式（300）和一组缓慢变化的信道参数（216）的准静态合成参数（202），其中该组准静态合成参数（202）信道自相关矩阵（R h _{_{）和至少一个互相关矢量（r 并且该组缓慢变化的信道参数（216）是从物理信道的延迟和多普勒功率分布（210）中导出的; 存储器（203），被配置为存储所述一组准静态合成参数（202）; 以及CE滤波器系数发生器（205），其被配置为基于所述一组准静态合成参数（202）来生成一组动态CE滤波器系数（w，207），以及一组动态参数（218）来自不同小区（c）的RS信号与小区特定调制之间的交叉调制（D，214）以及噪声和干扰SINR自相关（Γ，212）。}}

7. 发明申请

WO2017147662A1 SYSTEMS AND METHODS OF ESTIMATING CHANNEL PARAMETERS IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：用于估计无线通信系统中的信道参数的系统和方法
公开(公告)号：WO2017147662A1
公开(公告)日：2017-09-08
申请号：PCT/AU2017/050193
申请日：2017-03-06
申请人： THE UNIVERSITY OF SYDNEY
发明人： KOKSHOORN, Matthew , WANG, Peng , LI, Yonghui , CHEN, He
IPC分类号： H04B7/04 , H04L25/02
CPC分类号： H04B7/086 , H04B7/0617 , H04B7/0626 , H04L25/0204 , H04L25/0224
摘要： A method (100) of estimating parameters of a communication channel in a wireless communication system (300) is disclosed. The method (100) includes the steps of: (101) dividing the transmitter/receiver angular transmission/reception domains into at least two angular regions, (102) defining at least two transmitter/receiver beam patterns for transmission/reception of a communication channel, the transmitter/receiver beam patterns collectively spanning each of the angular regions of the respective angular transmission/reception domains and being at least partially overlapping in at least one angular region of the respective angular transmission/reception domains, (103) transmitting, for a predetermined period of time, the communication channel from the transmitter to the receiver; and (104, 106) upon receiving the communication channel at the receiver, estimating parameters of the communication channel including an angle-of-departure (AOD) within the angular transmission domain and an angle-of-arrival (AOA) within the angular receiving domain.
摘要翻译：公开了一种估计无线通信系统（300）中的通信信道的参数的方法（100）。该方法（100）包括以下步骤：（101）将发射机/接收机角度发射/接收域分成至少两个角度区域，（102）定义用于发射/接收通信信道的至少两个发射机/接收机波束图案，所述发射器/接收器波束图案共同地跨越所述相应角度发射/接收域的每个角度区域并且在所述相应角度发射/接收域的至少一个角度区域中至少部分地重叠，（103）对于预定时间段，从发射机到接收机的通信信道; 和（104,106）在接收器处接收通信信道时，估计通信信道的参数，包括角度发送域内的出发角（AOD）和角接收内的到达角（AOA）域。

8. 发明申请

WO2017116774A2 TRANSMISSION OF CHANNEL STATE INFORMATION BASED ON SELECTED NON-FREQUENCY DOMAIN COMPONENTS OF CHANNEL RESPONSES 审中-公开
标题翻译：基于信道响应的选定非频域分量传输信道状态信息
公开(公告)号：WO2017116774A2
公开(公告)日：2017-07-06
申请号：PCT/US2016/067319
申请日：2016-12-16
申请人： QUALCOMM INCORPORATED
发明人： MANOLAKOS, Alexandros , JIANG, Jing , NAMGOONG, June , KRISHNAMOORTHI, Raghuraman , SORIAGA, Joseph, Binamira , JI, Tingfang
IPC分类号： H04L25/02 , H04B7/06
CPC分类号： H04B7/0626 , H04B7/0663 , H04L5/0048 , H04L25/0204 , H04L25/0212 , H04L25/0216 , H04L25/0218 , H04L25/022 , H04W72/0413
摘要： Techniques are described for wireless communication. One method includes identifying a plurality of channel responses corresponding to a plurality of channels. Each channel of the plurality of channels corresponds to a pairing of a transmit antenna with a receive antenna. Each channel response of the plurality of channel responses corresponds to a plurality of tone subsets. The method also includes selecting, for each channel of the plurality of channels, a subset of non-frequency domain components of the channel response for the channel, and transmitting, for at least one channel of the plurality of channels, at least one subset of channel state information (CSI). The at least one subset of CSI is based at least in part on at least one of the selected subsets of non-frequency domain components.
摘要翻译：描述了用于无线通信的技术。一种方法包括识别对应于多个频道的多个频道响应。多个信道中的每个信道对应于发射天线与接收天线的配对。多个信道响应中的每个信道响应对应于多个音调子集。该方法还包括为多个信道中的每个信道选择该信道的信道响应的非频域分量的子集，并且针对多个信道中的至少一个信道发送至少一个子集信道状态信息（CSI）。 CSI的至少一个子集至少部分地基于选择的非频域分量的子集中的至少一个。

9. 发明申请

WO2016090411A8 MULTICARRIER COMMUNICATIONS SYSTEM 审中-公开
标题翻译：多方通信系统
公开(公告)号：WO2016090411A8
公开(公告)日：2017-07-06
申请号：PCT/AU2015000743
申请日：2015-12-09
申请人： UNIV SOUTH AUSTRALIA
发明人： HALEY DAVID VICTOR LAWRIE , COWLEY WILLIAM GEORGE , BUETEFUER JOHN LAWRENCE , GRANT ALEXANDER JAMES , LECHNER GOTTFRIED , POLLOK ANDRE , MCKILLIAM ROBERT GEORGE , LAND INGMAR RUDIGER , LAVENANT MARC PIERRE DENIS , CHEN YING
IPC分类号： H04W72/04
CPC分类号： H04W72/042 , H04L5/0007 , H04L5/0037 , H04L25/0204 , H04L25/03343 , H04L27/2657 , H04W72/044
摘要： Methods and apparatus for communication between terminals and an access node in a multiuser multicarrier communications network are described. The access node may be a satellite access node. Terminals are configured to perform initial estimation and tracking of channel offsets and to estimate channel offsets for future packets to be transmitted by the terminal. In some embodiments the channel offsets comprise mobility related channel offsets due to the relative movement between the access node and the plurality of terminals. Transmissions from the terminals to the access node are pre-compensated for the channel offsets, so that the aggregate signal received by the access node occupies a bandwidth greater or equal to the maximum signal bandwidth of any individual terminal. Terminal transmissions may overlap in frequency and time on the ground, but arrive orthogonally at the access node.
摘要翻译：描述了用于多用户多载波通信网络中的终端和接入节点之间的通信的方法和设备。接入节点可以是卫星接入节点。终端被配置为执行信道偏移的初始估计和跟踪，并估计将由终端发送的未来分组的信道偏移量。在一些实施例中，信道偏移包括由于接入节点和多个终端之间的相对移动而导致的与移动性相关的信道偏移。从终端向接入节点的传输对信道偏移进行预补偿，使得接入节点接收到的聚合信号占用大于或等于任何单独终端的最大信号带宽的带宽。终端传输可能在地面上的频率和时间上重叠，但在接入节点处正交地到达。

10. 发明申请

WO2017096506A1 WIRELESS COMMUNICATION DEVICE AND METHOD THEREIN FOR TIME SYNCHRONIZATION IN A WIRELESS COMMUNICATION NETWORK 审中-公开
标题翻译：用于无线通信网络中的时间同步的无线通信设备及其方法
公开(公告)号：WO2017096506A1
公开(公告)日：2017-06-15
申请号：PCT/CN2015/096546
申请日：2015-12-07
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , WANG, Hai
发明人： WANG, Hai , LI, Shaohua , WANG, Jianfeng , ZHENG, Yanli
IPC分类号： H04B1/707
CPC分类号： H04L27/266 , H04L25/0204 , H04L25/0212 , H04L25/022 , H04L27/2659
摘要： A wireless communication device and method therein for time synchronization in a wireless communication network are disclosed. The wireless communication device determines a first timing (tc) by performing a coarse time synchronization based on a synchronization signal received by the wireless communication device, wherein the received synchronization signal is sampled either in an original sampling rate or a reduced sampling rate. The wireless communication device determines a second timing (tf) by performing a fine time synchronization based on the determined first timing (tc) and the received synchronization signal.
摘要翻译：其中公开了一种用于无线通信网络中的时间同步的无线通信设备及其方法。无线通信设备通过基于由无线通信设备接收的同步信号执行粗略时间同步来确定第一定时（tc），其中接收到的同步信号或者以原始采样率或者降低的采样率被采样。无线通信设备通过基于所确定的第一定时（tc）和接收到的同步信号执行精细时间同步来确定第二定时（tf）。

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