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1. 发明公开

EP4440221A1 WIRELESS SENSING METHOD AND APPARATUS AND NETWORK SIDE DEVICE 审中-实审
公开(公告)号：EP4440221A1
公开(公告)日：2024-10-02
申请号：EP22897728.6
申请日：2022-11-18
申请人： VIVO MOBILE COMMUNICATION CO., LTD.
发明人： LI, Jianzhi , JIANG, Dajie , YAO, Jian , WU, Jianming
IPC分类号： H04W72/04
CPC分类号： Y02D30/70 , H04W52/02 , H04W16/18 , H04B17/309 , H04W72/04 , H04B7/22
摘要： This application discloses a wireless sensing method and apparatus, and a network-side device, and pertains to the communication field. The wireless sensing method in embodiments of this application includes: backscattering, by a first device, a target sensing signal to a wireless sensing signal receive end, where the target sensing signal comes from a wireless sensing signal transmit end, the wireless sensing signal transmit end includes a first terminal or a first network-side device, and the wireless sensing signal receive end includes a second network-side device.

2. 发明公开

EP4387106A1 SYSTEMS AND METHODS FOR ADAPTIVE BEYOND LINE OF SIGHT (BLOS) COMMUNICATIONS VIA EVAPORATION DUCT 审中-公开
公开(公告)号：EP4387106A1
公开(公告)日：2024-06-19
申请号：EP23216851.8
申请日：2023-12-14
申请人： Rockwell Collins, Inc.
发明人： HARALSON, Zachary , LOVSETH, Jonathan A.
IPC分类号： H04B1/02 , H04B7/22
CPC分类号： H04B1/02 , H04B7/22
摘要： A communications node for transmitting and receiving beyond line of sight (BLOS) communications through an evaporation duct (ED) environment proximate to a body of water (e.g., coastal, littoral) models environmental conditions (e.g., duct heights) based on current climate data for the ED environment. Based on the modelled ED conditions, the node generates signal propagation models for each of a set of possible transmitting frequencies (e.g., likely signal loss, transmission range). Based on the most current ED signal propagation model, the node selects the optimal transmission frequency for BLOS communications through the evaporation duct.

3. 发明公开

EP0932054A3 Downhole telemetry system and method for remote communication 审中-公开
标题翻译： Bohrlochtelemetrieanordnung und Verfahren zurFernübertragung
公开(公告)号：EP0932054A3
公开(公告)日：2000-06-14
申请号：EP99300549.5
申请日：1999-01-26
申请人： Halliburton Energy Services, Inc.
发明人： Smith, Harrison , Ringgenberg, Paul D.
IPC分类号： G01V1/22 , E21B47/12
CPC分类号： H04B7/22 , E21B47/122 , G01V1/22 , G01V3/34
摘要： A downhole telemetry system (10) for remote communication. The system (10) includes a downhole transmitter (44) that radiates an electromagnetic signal (46) carrying information into the earth. The electromagnetic signal (46) is received by a subsea repeater (48) that processes and retransmits the information through the sea. A remote station (54) receives the information from the subsea repeater (48) and stores the information. A master station (70) periodically polls the remote station (54) to request the information using meteor burst trails (76) to reflect radio waves (80) between the master station (70) and the remote station (54). Following the request, the remote station (54) generates radio waves (80) carrying the information that are reflected off meteor burst trails (78) and received by the master station (54).
摘要翻译：一种用于远程通信的井下遥测系统（10）。该系统（10）包括一个将承载信息放入地球的电磁信号（46）的井下发射器（44）。电磁信号（46）由海底中继器（48）接收，海底中继器（48）通过海处理和重传信息。远程站（54）从海底中继器（48）接收信息并存储信息。主站（70）周期性地轮询远程站（54），以使用流星突发路径（76）来请求信息，以反映主站（70）和远程站（54）之间的无线电波（80）。按照该请求，远程站（54）生成承载从流星突发路径（78）反射并由主站（54）接收的信息的无线电波（80）。

4. 发明公开

EP0974210A1 SYSTEM ZUR ÜBERTRAGUNG HOCHRATIGER MEHRWERTDIENSTE IM TERRESTRISCHEN DIGITALEN RUNDFUNK 失效
标题翻译：系统的开发地面数字广播TRANSFERRING率高增值服务
公开(公告)号：EP0974210A1
公开(公告)日：2000-01-26
申请号：EP98917042.8
申请日：1998-03-21
申请人： Deutsche Telekom AG
发明人： ZIMMERMANN, Gerd , SCHULZE, Henrik
IPC分类号： H04H1/00
CPC分类号： H04B7/22 , H04J11/00 , H04L1/08 , H04L27/00 , H04L27/04 , H04L27/32
摘要： The invention relates to a broad-band multi-frequency block X-DAB transceiver system for interference-free transmission of high data speed value-added services to mobile receivers in an analog TV channel. The system provides considerable flexibility with regard to error control profiles and therefore data rates, and enables unbalanced error control profiles and hierarchic transmission to be carried out. The invention discloses a method for transmitting high-speed added-value services to mobile subscribers according to the X-DAB system (Extended Digital Broadcasting System) based on several, mainly four, simultaneously broadcast adjacent X-DAB frequency blocks in a common wave network in which relevant service content corresponding to source coded digital input data flow is multiplexed.

5. 发明授权

EP0290541B1 HF RADIO COMMUNICATIONS SYSTEM WITH FREQUENCY MANAGEMENT 失效转让
标题翻译：高频无线电通信系统与频率管理
公开(公告)号：EP0290541B1
公开(公告)日：1992-02-19
申请号：EP87907606.5
申请日：1987-11-16
申请人： Siemens Plessey Electronic Systems Limited
发明人： REED, Allyson Patricia Catherine , GOODWIN, Robert, James , CLARKE, Ernest, Trevor , WILLIAMS, David, John, Simon
IPC分类号： H04L1/12
CPC分类号： H04B7/22 , H04L5/1438
摘要： An HF communications system comprising a plurality of radio stations, each radio station including a transceiver and a control means therefor, the control means including a processor and a memory, the memory storing a model of the ionosphere of a designated region in digital form, wherein in order to establish reliable communications channels between the stations, the system undergoes the following procedure: a first station computes from its stored model a propagation frequency window and determines a set of communications channels within the frequency window, the transceiver of the station thereafter monitoring the noise and interference present in the set of channels in order to reject channels having noise and interference levels higher than a predetermined level, and the first station establishing communications with one or more second stations on communications channels of the set in order to actively sound the channels in order to establish which channels are suitable for message transmission. In order to cater for disturbed ionospheric conditions a maximum usable frequency may be determined experimentally in a network setting up procedure or prior to any conversation between two or more stations wherein a series of active sounding test transmissions are carried out on a range of frequency channels between the stations.

6. 发明公开

EP0290541A1 HF RADIO COMMUNICATIONS SYSTEM WITH FREQUENCY MANAGEMENT 失效转让
标题翻译：与频率管理HF无线电传输系统。
公开(公告)号：EP0290541A1
公开(公告)日：1988-11-17
申请号：EP87907606.0
申请日：1987-11-16
申请人： PLESSEY OVERSEAS LIMITED
发明人： REED, Allyson Patricia Catherine , GOODWIN, Robert, James , CLARKE, Ernest, Trevor , WILLIAMS, David, John, Simon
IPC分类号： H04B7 , H04L1
CPC分类号： H04B7/22 , H04L5/1438
摘要： Un système de transmission HF comprend plusieurs stations radio, qui comportent chacune un émetteur-récepteur et une unité de commande pour l'émétteur-récepteur. L'unité de commande comprend un processeur et une mémoire, laquelle mémorise un modèle de la ionoisphère d'une région désignée sous forme numérique. Afin d'établir des canaux de transmission fiables entre les stations, ledit système est soumis à la procédure suivante: une première station calcule à partir de son modèle mémorisé une fenêtre de fréquences de propagation et détermine un groupe de canaux de transmission à l'intérieur de la fenêtre de fréquences, l'émetteur-récepteur de la station contrôle ensuite le bruit et les interférences présents sur le groupe de canaux afin de rejeter les canaux dont les niveaux de bruit et d'interférence sont supérieurs à un niveau prédéterminé, et la première station établit la communication avec l'une ou plusieurs des secondes stations sur des canaux de transmission du groupe afin de sonder activement les canaux, de façon à déterminer quels canaux sont appropriés pour la transmission de messages. Afin de faire face à des conditions ionosphériques perturbées, on peut déterminer de façon expérimentale une fréquence maximum utilisable (MUF) dans une procédure de constitution de réseau ou avant chaque conversation entre deux stations ou plus, dans lesquelles une série de transmissions de tests de sondage actif sont effectuées sur une gamme de canaux de fréquences entre les stations.

7. 发明公开

EP3161974A1 STREAMING DISPLAY DATA FROM A MOBILE DEVICE USING BACKSCATTER COMMUNICATIONS 有权
标题翻译：使用背光通信在移动设备上显示数据
公开(公告)号：EP3161974A1
公开(公告)日：2017-05-03
申请号：EP15812227.5
申请日：2015-05-21
申请人： X Development LLC
发明人： DEYLE, Travis
IPC分类号： H04B7/22 , H04B7/24 , H04L29/08
CPC分类号： G06F3/1454 , H04B7/22 , H04B7/26
摘要： A method of wirelessly communicating a screen image between a mobile device and a base station coupled to a display terminal includes establishing a wireless display session between the mobile device and the base station. Electromagnetic (“EM”) radiation emitted from the base station is incident upon an antenna of the mobile device. The screen image is transmitted to the base station for display on the display terminal by modulating a radar cross-section of the mobile device between two or more states to encode the screen image on a backscatter channel of the EM radiation.
摘要翻译：一种在移动设备和耦合到显示终端的基站之间无线传送屏幕图像的方法包括在移动设备和基站之间建立无线显示会话。从基站发射的电磁（“EM”）辐射入射到移动设备的天线上。通过在两个或更多个状态之间调制移动设备的雷达截面以将屏幕图像编码在EM辐射的反向散射信道上，屏幕图像被发送到基站以显示在显示终端上。

8. 发明授权

EP0974210B1 SYSTEM ZUR ÜBERTRAGUNG HOCHRATIGER MEHRWERTDIENSTE IM TERRESTRISCHEN DIGITALEN RUNDFUNK 失效
标题翻译：系统的开发地面数字广播TRANSFERRING率高增值服务
公开(公告)号：EP0974210B1
公开(公告)日：2003-07-09
申请号：EP98917042.8
申请日：1998-03-21
申请人： Deutsche Telekom AG
发明人： ZIMMERMANN, Gerd , SCHULZE, Henrik
IPC分类号： H04H1/00
CPC分类号： H04B7/22 , H04J11/00 , H04L1/08 , H04L27/00 , H04L27/04 , H04L27/32

9. 发明公开

EP0853392A3 Subcarrier frequency division multiplexing of modulated backscatter signals 失效
标题翻译：调制后向散射信号的副载波频分复用
公开(公告)号：EP0853392A3
公开(公告)日：1998-07-22
申请号：EP97310144.7
申请日：1997-12-16
申请人： LUCENT TECHNOLOGIES INC.
发明人： MacLellan, John Austin , Wright, Gregory Alan , Shober, Anthony R.
IPC分类号： H04B7/26
CPC分类号： H04B7/22
摘要： A communication system comprises an Interrogator (103) and one or more Tags (105). The Interrogator (103) generates a modulated carrier signal by modulating a first information signal onto a radio signal. The Interrogator transmits a downlink signal which comprises the modulated carrier signal and the radio signal. A Tag (105) receives and processes the downlink signal. Specifically, the Tag demodulates the first information signal from the modulated carrier signal and generates a second information signal typically based on the contents of the first information signal. The second information signal is used to modulate a subcarrier signal, thereby generating a modulated subcarrier signal. A Backscatter Modulator using this modulated subcarrier signal modulates the reflection of the radio signal, wherein the reflected signal is an uplink signal. The Interrogator (103) receives and demodulates the uplink signal using homodyne detection to obtain the modulated subcarrier signal, which is then demodulated using a subcarrier demodulator to obtain the second information signal. In one embodiment, frequency of the subcarrier signal is an integer multiple of the second information signal symbol rate and is up to half the sampling rate of the subcarrier demodulator.
摘要翻译：通信系统包括询问器（103）和一个或多个标签（105）。询问器（103）通过将第一信息信号调制到无线电信号上来产生调制的载波信号。询问器发送包括调制的载波信号和无线电信号的下行链路信号。标签（105）接收并处理下行链路信号。具体地，标签解调来自调制载波信号的第一信息信号并且典型地基于第一信息信号的内容产生第二信息信号。第二信息信号被用于调制副载波信号，从而产生调制的副载波信号。使用该调制的副载波信号的反向散射调制器调制无线电信号的反射，其中反射信号是上行链路信号。询问器（103）利用零差检测接收并解调上行链路信号以获得调制的副载波信号，然后使用副载波解调器解调该副载波信号以获得第二信息信号。在一个实施例中，副载波信号的频率是第二信息信号符号率的整数倍并且高达子载波解调器的采样率的一半。

10. 发明授权

EP0090210B1 System zum automatischen Aufbau einer Kurzwellen-Telegrafiezeichen-Verbindung 有权
标题翻译：短波电视信号自动启动方案系统
公开(公告)号：EP0090210B1
公开(公告)日：1986-10-01
申请号：EP83102246.2
申请日：1983-03-08
申请人： Rohde & Schwarz GmbH & Co. KG
发明人： Lange, Wolf Rüdiger , Wessel, Anton , Greiner, Günter, Dr. , Iselt, Peter , Böhler, Udo , Volkheimer, Klaus
IPC分类号： H04B7/12 , H04L1/04
CPC分类号： H04L1/20 , H04B7/22

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