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1.发明授权
公开(公告)号：US5982766A
公开(公告)日：1999-11-09
申请号：US845466
申请日：1997-04-25
申请人： Johan Nystrom , Stefan Bruhn , Erik Ekudden , Karl Hellwig
发明人： Johan Nystrom , Stefan Bruhn , Erik Ekudden , Karl Hellwig
CPC分类号： H04W52/265 , H04L1/0009 , H04L1/0014 , H04L1/0032 , H04L1/0038 , H04W52/267 , H04L1/0025 , H04L1/007 , H04W24/10 , H04W28/22
摘要： A power control system in a TDMA radio communication system has traffic channels which are associated with a set of speech/channel encoding modes. Each mode has a different mix of speech encoder bit rate and data protection bit rate but the same total available gross bit rate. The transmitter includes a power control unit that replaces a mode allocated to a channel by another mode having either a higher or a lower data protection bit rate and either a lower or a higher speech encoder bit rate if the sound to be encoded requires either a lower or a higher speech encoding bit rate. The power control unit also controls a power adjustment unit that either reduces or increases the output power of the transmitter to a lower or a higher level such that an estimated decoded speech quality measure at the receiver is substantially constant.
摘要翻译： TDMA无线通信系统中的功率控制系统具有与一组语音/信道编码模式相关联的业务信道。 每个模式具有不同的语音编码器比特率和数据保护比特率的混合，但总可用总比特率相同。 发射机包括功率控制单元，如果要编码的声音需要较低或更低的数据保护比特率，则替换分配给信道的模式，或者具有较低或较低的数据保护比特率， 或更高的语音编码比特率。 功率控制单元还控制功率调节单元，其将发射机的输出功率降低或增加到较低或更高的电平，使得接收机处的估计解码语音质量测量基本上是恒定的。
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2.发明授权Method and apparatus for detecting communication signals having unequal error protection 失效用于检测具有不等错误保护的通信信号的方法和装置
公开(公告)号：US5757821A
公开(公告)日：1998-05-26
申请号：US684792
申请日：1996-07-22
申请人： Karim Jamal , Johan Nystrom
发明人： Karim Jamal , Johan Nystrom
CPC分类号： H03M13/2703 , H03M13/00 , H03M13/35 , H03M13/4146
摘要： A method and system for transmitting signals using unequal error protection (UEP). According to the method, symbols having a higher level of coding protection are detected and decoded first, soft reliability information is generated, and then the previously detected symbols and soft reliability information are used to detect and decode symbols having the next lower level of coding protection. The symbols having lower levels of coding protection benefit from the decoding of all previous classes of symbols. Data symbols can be interleaved to further enhance system performance.
摘要翻译： 一种使用不等错误保护（UEP）传输信号的方法和系统。 根据该方法，首先检测和解码具有较高编码保护级别的符号，生成软可靠性信息，然后使用先前检测到的符号和软可靠性信息来检测和解码具有下一较低编码保护级别的符号 。 具有较低编码保护水平的符号受益于所有先前类别的符号的解码。 数据符号可以交错以进一步提高系统性能。
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公开(公告)号：US09596019B2
公开(公告)日：2017-03-14
申请号：US12992921
申请日：2008-05-28
摘要： The present invention relates to a group (G1, G2) of at least two transceiver units (1, 2; 3, 4) in at least one wireless communication system. The transceiver units (1, 2; 3, 4) in the group (G1, G2) are arranged for wireless communication with at least one other transceiver unit. The transceiver units (1, 2; 3, 4) in the group (G1, G2) are arranged to transmit signals with polarizations that are essentially parallel to each other when received by at least one transceiver unit for which the transmitted signals (5, 6) constitutes interference.The present invention also relates to a method, a node and a transceiver unit.
摘要翻译： 本发明还涉及一种方法，节点和收发机单元。
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4.发明申请Wireless multicarrier system with subcarriers reserved for communication between unsynchronized nodes 失效具有保留用于在不同步节点之间通信的副载波的无线多载波系统公开(公告)号：US20070002725A1
公开(公告)日：2007-01-04
申请号：US10581995
申请日：2004-12-01
申请人： Johan Nystrom , Pal Frenger , Erik Dahlman
发明人： Johan Nystrom , Pal Frenger , Erik Dahlman
IPC分类号： H04J11/00
CPC分类号： H04L27/30 , H04L5/0053 , H04L5/0091 , H04L27/2626 , H04L27/2647
摘要： In a system applying orthogonal frequency division multiplexing, OFDM, a number of carriers are reserved for communication between unsynchronised nodes (N1, N2). At least one such reserved carrier is assigned to each base station. A sinusoidal signal is transmitted on this reserved carrier during a time period at least equal to two consecutive OFDM symbols. The unsynchronised receiver detects the sinusoidal signal during one of two consecutive OFDM symbol time periods. The existence, the frequency and the signal power of the signal give information about the existence and identity of the transmitter. Also, estimates of relative velocities and distances can be deduced. In preferred embodiments, the sinusoidal signal can also be used to transmit further information by using signal modulation or coding that is independent of the absolute signal phase.
摘要翻译： 在应用正交频分复用的系统中，OFDM被保留用于非同步节点（N 1，N 2）之间的通信。 至少一个这样的预留载体被分配给每个基站。 在至少等于两个连续OFDM符号的时间周期内，在该保留载波上发送正弦信号。 在两个连续的OFDM符号时间段之一期间，非同步接收机检测正弦信号。 信号的存在，频率和信号功率给出关于发射机的存在和身份的信息。 此外，可以推导出相对速度和距离的估计。 在优选实施例中，正弦信号还可以用于通过使用独立于绝对信号相位的信号调制或编码来发送进一步的信息。
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公开(公告)号：US20110065390A1
公开(公告)日：2011-03-17
申请号：US12992921
申请日：2008-05-28
IPC分类号： H04B15/00
摘要： The present invention relates to a group (G1, G2) of at least two transceiver units (1, 2; 3, 4) in at least one wireless communication system. The transceiver units (1, 2; 3, 4) in the group (G1, G2) are arranged for wireless communication with at least one other transceiver unit. The transceiver units (1, 2; 3, 4) in the group (G1, G2) are arranged to transmit signals with polarizations that are essentially parallel to each other when received by at least one transceiver unit for which the transmitted signals (5, 6) constitutes interference.The present invention also relates to a method, a node and a transceiver unit.
摘要翻译： 本发明涉及至少一个无线通信系统中至少两个收发器单元（1,2; 3,4）的组（G1，G2）。 组（G1，G2）中的收发器单元（1,2; 3,4）被布置用于与至少一个其他收发器单元的无线通信。 组（G1，G2）中的收发器单元（1，2; 3，4）被布置成在由至少一个收发器单元接收时发射具有基本上彼此平行的偏振的信号， 6）构成干扰。 本发明还涉及一种方法，节点和收发机单元。
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6.发明申请Relay station and method for enabling reliable digital communications between two nodes in a wireless relay based network 有权用于在基于无线中继的网络中的两个节点之间实现可靠的数字通信的中继站和方法公开(公告)号：US20070116092A1
公开(公告)日：2007-05-24
申请号：US10596619
申请日：2003-12-19
申请人： Johan Nystrom , Pal Frenger
发明人： Johan Nystrom , Pal Frenger
IPC分类号： H04B1/00
CPC分类号： H03M13/3905 , H03M13/45 , H04B7/155 , H04B7/2606 , H04L1/0041 , H04L1/0045 , H04L1/0055 , H04L1/0082 , H04L1/18 , H04L1/1845 , H04L2001/0097 , H04W16/26
摘要： A relay station (606, 806a, 806b, 906a, 906b, 1006 and 1106) and a method (700) are described herein that enables reliable digital communications to occur between two nodes in a wireless relay based network (600, 800, 900, 1000 and 1100). The wireless relay based network includes a first node (602, 802, 902, 1002 and 1102) that transmits information in coded/modulated digital communications to a second node (604, 804, 904, 1004 and 1104) via one or more relay stations. And, each relay station is capable of (1) receiving (702) a coded/modulated digital communication from the first node; (2) computing (704) a plurality of reliability values for a plurality of information symbols or coded symbols in the received coded/modulated digital communication; and (3) transmitting (706) a coded/modulated digital communication that has the computed reliability values embedded therein to the second node.
摘要翻译： 本文描述了一种中继站（606,806a，806b，906a，906b，1006和1106）和方法（700），其使得能够在基于无线中继的网络中的两个节点之间进行可靠的数字通信（600， 800,900,1000和1100）。 基于无线中继的网络包括经编码/调制数字通信中的信息经由一个或多个中继站（604,804,904,1004和1104）向第二节点（604,804,904,1004和1104）发送信息的第一节点（602,802,902,1002和1102） 。 并且，每个中继站能够（1）从第一节点接收（702）编码/调制的数字通信; （2）在接收到的编码/调制数字通信中对多个信息符号或编码符号计算（704）多个可靠性值; 和（3）将嵌入其中的计算的可靠性值的编码/调制数字通信发送（706）到第二节点。
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7.发明授权Relay station and method for enabling reliable digital communications between two nodes in a wireless relay based network 有权用于在基于无线中继的网络中的两个节点之间实现可靠的数字通信的中继站和方法公开(公告)号：US08125938B2
公开(公告)日：2012-02-28
申请号：US10596619
申请日：2003-12-19
申请人： Johan Nystrom , Pal Frenger
发明人： Johan Nystrom , Pal Frenger
IPC分类号： H04B7/14
CPC分类号： H03M13/3905 , H03M13/45 , H04B7/155 , H04B7/2606 , H04L1/0041 , H04L1/0045 , H04L1/0055 , H04L1/0082 , H04L1/18 , H04L1/1845 , H04L2001/0097 , H04W16/26
摘要： A relay station (606, 806a, 806b, 906a, 906b, 1006 and 1106) and a method (700) are described herein that enables reliable digital communications to occur between two nodes in a wireless relay based network (600, 800, 900, 1000 and 1100). The wireless relay based network includes a first node (602, 802, 902, 1002 and 1102) that transmits information in coded/modulated digital communications to a second node (604, 804, 904, 1004 and 1104) via one or more relay stations. And, each relay station is capable of: (1) receiving (702) a coded/modulated digital communication from the first node; (2) computing (704) a plurality of reliability values for a plurality of information symbols or coded symbols in the received coded/modulated digital communication; and (3) transmitting (706) a coded/modulated digital communication that has the computed reliability values embedded therein to the second node.
摘要翻译： 本文描述了一种中继站（606,806a，806b，906a，906b，1006和1106）以及方法（700），其使得能够在基于无线中继的网络中的两个节点之间进行可靠的数字通信（600,800,900， 1000和1100）。 基于无线中继的网络包括经编码/调制数字通信中的信息经由一个或多个中继站（604,804,904,1004和1104）向第二节点（604,804,904,1004和1104）发送信息的第一节点（602,802,902,1002和1102） 。 并且，每个中继站能够：（1）从第一节点接收（702）编码/调制的数字通信; （2）在接收到的编码/调制数字通信中对多个信息符号或编码符号计算（704）多个可靠性值; 和（3）将嵌入其中的计算的可靠性值的编码/调制数字通信发送（706）到第二节点。
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公开(公告)号：US20070149135A1
公开(公告)日：2007-06-28
申请号：US10584129
申请日：2003-12-23
申请人： Peter Larsson , Johan Nystrom
发明人： Peter Larsson , Johan Nystrom
IPC分类号： H04B17/00
CPC分类号： H04B7/022
摘要： A multiple path information transfer system in a cellular radio network includes several receivers (BS-1, . . . , BS-N) for receiving radio signals representing digital information from at least one signal source. From each received radio signal a corresponding digitized baseband signal that contains soft information is extracted. Compressing units (10) compress the soft information to produce compressed baseband signals. These compressed signals are forwarded to a combining unit over a transport network. A de-compressor (16) de-compresses the forwarded signals to at least approximately restore the baseband signals. The de-compressed signals are combined (18-22) and the combined signal is decoded to at least approximately restore the digital information.
摘要翻译： 蜂窝无线电网络中的多路径信息传输系统包括用于从至少一个信号源接收表示数字信息的无线电信号的几个接收机（BS-1，...，BS-N）。 从每个接收到的无线电信号中提取包含软信息的对应的数字化基带信号。 压缩单元（10）压缩软信息以产生压缩的基带信号。 这些压缩信号通过传输网络转发到组合单元。 解压缩器（16）将所转发的信号压缩至少近似地恢复基带信号。 解压缩信号被组合（18-22），并且组合的信号被解码以至少大致恢复数字信息。
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公开(公告)号：US20090109902A1
公开(公告)日：2009-04-30
申请号：US12301579
申请日：2006-05-19
IPC分类号： H04W40/02
CPC分类号： H04L27/2602 , H04L5/0012 , H04L5/0053 , H04L5/0094 , H04L27/2613 , H04W48/08
摘要： The object of the present invention is to provide a mechanism for a more efficient carrier search. The object is achieved by a method for sending a signal in a first node. The first node communicates with a second node via radio communication, which radio communication is performed by multi carrier transmission. The first node uses a carrier, being associated with a frequency range. The method comprises the step of transmitting an end-marker signal within or close to the frequency range. The end-marker signal is intended to be received and used by the second node for identifying the frequency range of the used carrier.
摘要翻译： 本发明的目的是提供一种用于更有效的载波搜索的机制。 该目的通过用于在第一节点中发送信号的方法来实现。 第一节点通过无线电通信与第二节点进行通信，该无线电通信是通过多载波传输进行的。 第一个节点使用与频率范围相关联的载波。 该方法包括在频率范围内或接近频率范围内发送结束标记信号的步骤。 终端标记信号旨在由第二节点接收和使用，用于识别所使用的载波的频率范围。
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公开(公告)号：US20080259159A1
公开(公告)日：2008-10-23
申请号：US12099019
申请日：2008-04-07
申请人： Johan Nystrom
发明人： Johan Nystrom
IPC分类号： H04N7/18
摘要： The invention relates to a method for moving a maneuverable part of a pan-tilt camera from a first pan-tilt position, having a first pan coordinate and a first tilt coordinate, to a second pan-tilt position, having a second pan coordinate and a second tilt coordinate. The maneuverable part is moved by inverting the maneuverable part of the camera and panning to the second pan coordinate. The first pan coordinate is part of a pan-tilt coordinate system and the second pan coordinate is part of a complementary pan-tilt coordinate system, which represents positions of the inverted maneuverable part. The maneuverable part is moved from the first tilt coordinate to the second tilt coordinate. The first tilt coordinate is part of the pan-tilt coordinate system and the second tilt coordinate is part of the complementary pan-tilt coordinate system. The invention also relates to a corresponding device and a corresponding computer program.
摘要翻译： 本发明涉及一种用于将具有第一摇摄坐标和第一倾斜坐标的第一俯仰位置的俯仰摄像机的可操纵部分移动到具有第二摇摄坐标的第二俯仰位置的方法，以及 第二倾斜坐标。 通过将摄像机的机动部分反转并平移到第二摇摄坐标来移动机动部分。 第一摇摄坐标是俯仰坐标系的一部分，第二摇摄坐标是互补俯仰坐标系的一部分，表示反转机动部分的位置。 机动部分从第一倾斜坐标移动到第二倾斜坐标。 第一倾斜坐标是俯仰坐标系的一部分，第二倾斜坐标是补充俯仰坐标系的一部分。 本发明还涉及相应的设备和相应的计算机程序。
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