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1.发明公开CORRECTION OF QUADRATURE PHASE AND GAIN MISMATCH IN RECEIVER DOWN-CONVERSION USING A DUAL CORDIC ARCHITECTURE 审中-公开磨边的纠正措施相和不匹配增益接收器向下执行联CORDIC架构
公开(公告)号：EP2995052A1
公开(公告)日：2016-03-16
申请号：EP14700792.6
申请日：2014-01-21
CPC分类号： H04B1/12 , H04L27/0014 , H04L27/364 , H04L27/3827 , H04L2027/003
摘要： A digital radio receiver is disclosed comprising: • a first section arranged to receive an analogue radio signal and to generate therefrom digital intermediate frequency I and Q channel samples, • a second section arranged to convert said I and Q channel samples to a lower, baseband frequency, said second section comprising: • a first coordinate rotation digital computer, CORDIC, module arranged to perform a complex rotation of the I channel samples; • a second coordinate rotation digital computer, CORDIC, module arranged to perform a complex rotation of the Q channel samples; • a phase accumulator arranged to provide an output signal representing a complex rotation to be applied to each of the I and Q channel samples, • wherein the second section is arranged such that the phase accumulator output signal is modified by a phase offset signal prior to being supplied to one of the first and second coordinate rotation digital computers, CORDICs.
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公开(公告)号：EP3155739A1
公开(公告)日：2017-04-19
申请号：EP15728127.0
申请日：2015-06-09
发明人： ENGELIEN-LOPES, David Alexandre , WICHLUND, Sverre , OLSEN, Eivind , CORBISHLEY, Phil , BRUSET, Ola
CPC分类号： H04L27/2017 , H04B1/7073 , H04J13/0074 , H04J13/10 , H04L7/00 , H04L23/02 , H04L27/18 , H04L27/2003 , H04L27/22 , H04L27/233 , H04L27/2659 , H04L27/2662 , H04L2027/0046 , H04L2027/0065
摘要： A radio transmitter (4) comprises an encoder (5) that receives one or more variable message bits, and encodes each message bit that has a first value as a predetermined first binary chip sequence and encodes each message bit that has the opposite value as a predetermined second binary chip sequence. The radio transmitter (4) transmits data packets, each comprising (i) a predetermined synchronisation portion, comprising one or more instances of the first binary chip sequence, and (ii) a variable data portion, comprising one or more encoded message bits output by the encoder. A radio receiver (9) receives such data packets. It uses the synchronisation portion of a received data packet to perform a frequency and/or timing synchronisation operation, and then decodes message bits from the data portion of the data packet.
摘要翻译： 无线电发射机（4）包括接收一个或多个可变消息比特的编码器（5），并将具有第一值的每个消息比特编码为预定的第一二进制码片序列，并将具有相反值的每个消息比特编码为 预定的第二二进制码片序列。 无线电发射机（4）发送数据分组，每个数据分组包括（i）包括第一二进制码片序列的一个或多个实例的预定同步部分，和（ii）可变数据部分，包括一个或多个由 编码器。 无线电接收机（9）接收这样的数据分组。 它使用接收的数据分组的同步部分来执行频率和/或定时同步操作，然后从数据分组的数据部分解码消息比特。
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3.发明公开DIGITAL RADIO TRANSMISSIONS 有权CPFSK-EMPFÄNGERMIT EINEM MATCHED-FILTER-BANK UNDSCHÄTZUNGDES FREQUENZOFFSETS
公开(公告)号：EP2984802A2
公开(公告)日：2016-02-17
申请号：EP14716401.6
申请日：2014-04-09
IPC分类号： H04L27/233 , H04L27/00
CPC分类号： H04L27/2334 , H04L27/2332 , H04L2027/003 , H04L2027/0057 , H04L2027/0065 , H04L2027/0085 , H04L2027/0095
摘要： A digital radio receiver adapted to receive radio signals modulated using continuous phase frequency shift keying, CPFSK. The receiver comprises means for receiving a radio signal (2), a correlator (8) arranged to estimate a frequency offset between the carrier frequency of the received radio signal and a nominal carrier frequency, means for correcting said frequency offset (4) and outputting a frequency-corrected radio signal (6), and a matched filter bank, MFB, which comprises a plurality of filters (20,22), each of which corresponds to a different bit pattern, for determining a bit sequence (36) from the frequency-corrected radio signal (6).
摘要翻译： 一种适于接收使用连续相位频移键控（CPFSK）调制的无线电信号的数字无线电接收机。 接收机包括用于接收无线电信号（2）的装置，被布置为估计所接收的无线电信号的载波频率与标称载波频率之间的频率偏移的相关器（8），用于校正所述频率偏移（4）并输出 频率校正无线电信号（6）和匹配滤波器组MFB，其包括多个滤波器（20,22），每个滤波器组对应于不同的位模式，用于确定来自 频率校正无线电信号（6）。
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公开(公告)号：EP3549267A1
公开(公告)日：2019-10-09
申请号：EP17811363.5
申请日：2017-12-04
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公开(公告)号：EP3005596A1
公开(公告)日：2016-04-13
申请号：EP14730958.7
申请日：2014-06-04
IPC分类号： H04L1/00
CPC分类号： H04W76/19 , H04L1/0009 , H04L1/0023 , H04L1/08 , H04W4/80
摘要： A method of digital radio communication between a first device (2) and a second device (8), where each device comprises a radio transmitter (4, 10) and a radio receiver (6, 12), the method comprising: a) said first and second devices (2, 8) establishing a connection using a predetermined protocol having at least one predefined message format; and b) said first and second devices (2, 8) agreeing that in the event of said connection being broken a re-connection may be established using a coding scheme in which at least some bits specified in said predefined message format are represented by a plurality of bits transmitted.
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6.发明授权CPFSK RECEIVER WITH A MATCHED FILTER BANK AND ESTIMATION OF THE FREQUENCY OFFSET 有权具有匹配滤波器组的CPFSK接收器和频偏的估计
公开(公告)号：EP2984802B1
公开(公告)日：2017-12-27
申请号：EP14716401.6
申请日：2014-04-09
IPC分类号： H04L27/233 , H04L27/00
CPC分类号： H04L27/2334 , H04L27/2332 , H04L2027/003 , H04L2027/0057 , H04L2027/0065 , H04L2027/0085 , H04L2027/0095
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公开(公告)号：EP3005597A1
公开(公告)日：2016-04-13
申请号：EP14730960.3
申请日：2014-06-04
IPC分类号： H04L1/00
CPC分类号： H04W76/19 , H04B17/318 , H04B17/373 , H04L5/1438 , H04L5/1446 , H04W4/80 , H04W8/005 , H04W76/14 , H04W84/20
摘要： A method of digital radio communication between a first device (2) and a second device (8), where each device comprises a radio transmitter (4, 10) and a radio receiver (6, 12), the method comprising: a) said first and second devices (2, 8) establishing a connection using a predetermined protocol having at least one predefined message format; b) if said connection is subsequently broken, said second device (8) transmitting an advertising message at a first data rate indicating a desire to reconnect; and c) if a reconnection is not established, said second device (8) transmitting a further advertising message at a second data rate indicating a desire to reconnect, wherein said second data rate is lower than the first data rate.
摘要翻译： 一种在第一设备（2）和第二设备（8）之间的数字无线电通信的方法，其中每个设备包括无线电发射机（4,10）和无线电接收机（6,12），所述方法包括：a）所述 第一和第二设备（2,8）使用具有至少一个预定消息格式的预定协议来建立连接; b）如果所述连接随后被破坏，则所述第二设备（8）以指示重新连接的愿望的第一数据速率发送广告消息; 以及c）如果未建立重新连接，则所述第二设备（8）以指示重新连接的愿望的第二数据速率发送另外的广告消息，其中所述第二数据速率低于所述第一数据速率。
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公开(公告)号：EP3391582A1
公开(公告)日：2018-10-24
申请号：EP16788750.4
申请日：2016-10-25
发明人： OLSEN, Eivind , WICHLUND, Sverre
CPC分类号： H04B1/70752 , H04B1/707 , H04B1/70712 , H04B1/70735 , H04B1/7087 , H04L7/042 , H04L27/26
摘要： A digital radio receiver (7) is arranged to receive and process data frames, each data frame comprising (i) a plurality of identical synchronization sequences; (ii) identification data different from the synchronization sequences; and (iii) convolution-encoded message data. An initial-synchronization section of the receiver (7) uses the plurality of synchronization sequences in a received data frame to perform a frequency-synchronization or symbol-timing-synchronization operation. A frame-synchronization section determines frame-synchronization information by correlating at least a part of the received identification data against reference identification data stored in a memory. A convolution-decoding section uses the frame-synchronization information to decode the message data.
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9.发明公开USING MULTIPLE CORRELATORS TO DETERMINE SIGNAL SENT AND FREQUENCY OFFSET 审中-公开VERWENDUNG MEHRERER KORRELATOREN ZUR BESTIMMUNG EINES GESENDETEN SIGNALS UND FREULENZVERSATZES
公开(公告)号：EP3084973A1
公开(公告)日：2016-10-26
申请号：EP14812793.9
申请日：2014-12-10
IPC分类号： H04B1/708 , H04B1/7087 , H04L7/04
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 is adapted to receive radio signals modulated using continuous phase modulation. The receiver includes components for receiving analogue radio signals having various carrier frequencies and a plurality of correlators corresponding to different bit sequences. Each of the plurality of correlators share a common estimator for estimating a frequency offset between the radio signals carrier frequencies and nominal carrier frequencies. The receiver further includes components allowing the estimator to determine which of the correlators produce the most optimal 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， 以及用于确定所述相关器6,8中的哪一个产生期望的输出信号的装置12。
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