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    • 3. 发明申请
    • Relay station and method for enabling reliable digital communications between two nodes in a wireless relay based network
    • 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
    • US20070116092A1
    • 2007-05-24
    • US10596619
    • 2003-12-19
    • Johan NystromPal Frenger
    • Johan NystromPal Frenger
    • H04B1/00
    • H03M13/3905H03M13/45H04B7/155H04B7/2606H04L1/0041H04L1/0045H04L1/0055H04L1/0082H04L1/18H04L1/1845H04L2001/0097H04W16/26
    • 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.
    • 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。
    • 6. 发明申请
    • Wireless multicarrier system with subcarriers reserved for communication between unsynchronized nodes
    • 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
    • US20070002725A1
    • 2007-01-04
    • US10581995
    • 2004-12-01
    • Johan NystromPal FrengerErik Dahlman
    • Johan NystromPal FrengerErik Dahlman
    • H04J11/00
    • H04L27/30H04L5/0053H04L5/0091H04L27/2626H04L27/2647
    • 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.
    • 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。
    • 7. 发明授权
    • Relay station and method for enabling reliable digital communications between two nodes in a wireless relay based network
    • 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
    • US08125938B2
    • 2012-02-28
    • US10596619
    • 2003-12-19
    • Johan NystromPal Frenger
    • Johan NystromPal Frenger
    • H04B7/14
    • H03M13/3905H03M13/45H04B7/155H04B7/2606H04L1/0041H04L1/0045H04L1/0055H04L1/0082H04L1/18H04L1/1845H04L2001/0097H04W16/26
    • 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.
    • 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。
    • 8. 发明申请
    • Information transfer method and system
    • 信息传递方法和系统
    • US20070149135A1
    • 2007-06-28
    • US10584129
    • 2003-12-23
    • Peter LarssonJohan Nystrom
    • Peter LarssonJohan Nystrom
    • H04B17/00
    • H04B7/022
    • 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.
    • 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。