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1. 发明申请

US20150244450A1 ECHO CANCELLATION IN COMMUNICATION TRANSCEIVERS 审中-公开
标题翻译：通信收发机中的ECHO取消
公开(公告)号：US20150244450A1
公开(公告)日：2015-08-27
申请号：US14439675
申请日：2013-11-04
申请人： NOVELSAT LTD.
发明人： Daniel Wajcer , Avihay Sadeh Shirazi , Dan Peleg , Yuval Shalom , Itzhak Wulkan
IPC分类号： H04B7/155 , H04L25/03 , H04B7/185
CPC分类号： H04B7/15585 , H04B7/18515 , H04B7/18517 , H04L25/03343
摘要： A method includes, in a transceiver (28, 160), receiving from a repeater (32, 168) a received signal that includes a desired signal for reception and an undesired replica of a transmitted signal that was transmitted from the transceiver and retransmitted by the repeater. A local copy of the transmitted signal is generated in the transceiver. The local copy is matched with the undesired replica of the transmitted signal in the received signal, by adapting the received signal while retaining the local copy non-adaptive. An interference caused by the undesired replica to the desired signal is canceled, by subtracting the local copy from the adapted received signal.
摘要翻译：一种方法包括在收发器（28,160）中从中继器（32,168）接收包括用于接收的期望信号的接收信号和从收发器发送并由发送器发送的发送信号的不期望的副本中继器发送信号的本地副本在收发器中产生。通过在保持本地拷贝非自适应的同时适配接收到的信号，将本地副本与接收信号中发送信号的不期望的副本进行匹配。通过从适配的接收信号中减去本地副本，消除由不期望的副本到期望的信号引起的干扰。

2. 发明申请

US20170127323A1 HANDOVER BETWEEN SATELLITES USING A SINGLE MODEM 审中-公开
公开(公告)号：US20170127323A1
公开(公告)日：2017-05-04
申请号：US15306092
申请日：2015-04-22
申请人： NOVELSAT LTD.
发明人： Dan Peleg , Avraham Freedman
IPC分类号： H04W36/08 , H04B7/185 , H04W56/00
CPC分类号： H04W36/08 , H04B7/18513 , H04B7/18541 , H04B7/2125 , H04W56/0015
摘要： A method for communication includes, in a first earth station (28A) that transmits signals to a second earth station (28B) via a first satellite (24A), initiating a handover from the first satellite to a second satellite (24B) by transmitting the signals via both the first satellite and the second satellite, including transmitting a handover command and a synchronization signal. The handover command is received in the second earth station via the first satellite. In response to the handover command, a switch is made to receive the signals via the second satellite and synchronize to the signal received via the second satellite using the synchronization signal.

3. 发明申请

WO2022043883A1 REDIRECTION OF GTP TRAFFIC IN MOBILE NETWORKS 审中-公开
公开(公告)号：WO2022043883A1
公开(公告)日：2022-03-03
申请号：PCT/IB2021/057777
申请日：2021-08-25
申请人： NOVELSAT LTD.
发明人： COHEN, Eyal
IPC分类号： H04L12/911 , H04W76/12 , H04L29/08 , H04L12/725
摘要： A method for content delivery includes, in an edge gateway (64) coupled to an access network, intercepting packets that are communicated over a network tunnel between a user device (24) and a core network (36) for delivering content from a remote content server to the user device. The network tunnel is redirected toward a local content server (60) coupled to the access network. The content is delivered to the user device from the local content server over the redirected network tunnel.

4. 发明申请

WO2010049858A3 HIGH-PERFORMANCE FASTER-THAN-NYQUIST (FTN) SIGNALING SCHEMES 审中-公开
公开(公告)号：WO2010049858A3
公开(公告)日：2010-05-06
申请号：PCT/IB2009/054672
申请日：2009-10-22
申请人： NOVELSAT LTD , WAJCER, Daniel , BEITLER, Uri
发明人： WAJCER, Daniel , BEITLER, Uri
IPC分类号： H04B1/66
摘要： A method for communication includes modulating data to produce a series of symbols defined in a signal space. The symbols are pulse-shaped using a given pulse shape. A signal, which includes a sequence of the pulse-shaped symbols (104A...104C) transmitted at a symbol rate that is higher than a Nyquist rate defined for the given pulse shape, is transmitted to a receiver (40). Prior to pulse-shaping the symbols, Inter-Symbol Interference (ISI) in the signal is pre-compensated for by applying a lattice precoding operation to the symbols. The lattice precoding operation confines the symbols to a predefined volume (110) in the signal space and is computed independently of any feedback from the receiver.

5. 发明申请

WO2010136930A2 ITERATIVE DECODING OF LDPC CODES WITH ITERATION SCHEDULING 审中-公开
标题翻译：具有迭代调度的LDPC码的迭代解码
公开(公告)号：WO2010136930A2
公开(公告)日：2010-12-02
申请号：PCT/IB2010052161
申请日：2010-05-16
申请人： NOVELSAT LTD , WAJCER DANIEL , MILLER MOR
发明人： WAJCER DANIEL , MILLER MOR
IPC分类号： G06F7/02
CPC分类号： H03M13/253 , H03M13/1102 , H03M13/1128 , H03M13/1165 , H03M13/152 , H03M13/255 , H03M13/2906 , H03M13/3746 , H03M13/6325 , H03M13/6527 , H03M13/6544 , H03M13/6552 , H03M13/6561
摘要： A method includes accepting modulated symbols, which carry bits of a code word of a Low Density Parity Check (LDPC) code, and computing respective soft input metrics for the bits. The code word is decoded using an iterative LDPC decoding process that includes selecting, based on a predefined criterion, a number of internal iterations to be performed by an LDPC decoder (84) in the process, performing the selected number of the internal iterations using the LDPC decoder so as to estimate decoded bits and soft output metrics indicative of the input bits based on the soft input metrics, performing an external iteration that updates one or more of the soft input metrics based on one or more of the soft output metrics produced by the LDPC decoder, and repeating at least one of the internal iterations using the updated soft input metrics.
摘要翻译：一种方法包括接收调制符号，该调制符号携带低密度奇偶校验（LDPC）码的码字的比特，以及计算该比特的各个软输入度量。使用迭代LDPC解码处理对代码字进行解码，该处理包括：基于预定标准，在该过程中选择要由LDPC解码器（84）执行的内部迭代次数，使用该LDPC码解码器执行所选择的内部迭代次数 LDPC解码器，以便基于软输入度量来估计指示输入比特的解码比特和软输出度量，执行基于一个或多个软输出度量的外部迭代，所述一个或多个软输入度量基于由 LDPC解码器，并且使用更新的软输入度量重复至少一个内部迭代。

6. 发明申请

WO2010049858A2 HIGH-PERFORMANCE FASTER-THAN-NYQUIST (FTN) SIGNALING SCHEMES 审中-公开
标题翻译：高性能更快的NYQUIST（FTN）信号传输方案
公开(公告)号：WO2010049858A2
公开(公告)日：2010-05-06
申请号：PCT/IB2009054672
申请日：2009-10-22
申请人： NOVELSAT LTD , WAJCER DANIEL , BEITLER URI
发明人： WAJCER DANIEL , BEITLER URI
IPC分类号： H04W80/02
CPC分类号： H04L25/03343 , H04L1/0057 , H04L1/0071 , H04L25/03834 , H04L25/068
摘要： A method for communication includes modulating data to produce a series of symbols defined in a signal space. The symbols are pulse-shaped using a given pulse shape. A signal, which includes a sequence of the pulse-shaped symbols (104A...104C) transmitted at a symbol rate that is higher than a Nyquist rate defined for the given pulse shape, is transmitted to a receiver (40). Prior to pulse-shaping the symbols, Inter-Symbol Interference (ISI) in the signal is pre-compensated for by applying a lattice precoding operation to the symbols. The lattice precoding operation confines the symbols to a predefined volume (110) in the signal space and is computed independently of any feedback from the receiver.
摘要翻译：用于通信的方法包括调制数据以产生在信号空间中定义的一系列符号。符号是使用给定的脉冲形状的脉冲形状。包括以高于为给定脉冲形状定义的奈奎斯特速率的符号速率发送的脉冲形符号（104A ... 104C）的序列的信号被发送到接收器（40）。在对符号进行脉冲整形之前，通过对符号应用格预编码操作来对信号中的符号间干扰（ISI）进行预补偿。格预编码操作将符号限制在信号空间中的预定体积（110），并且独立于来自接收机的任何反馈来计算。

7. 发明公开

US20230284326A1 Redirection of GTP traffic in mobile networks 审中-公开
公开(公告)号：US20230284326A1
公开(公告)日：2023-09-07
申请号：US18016462
申请日：2021-08-25
申请人： NOVELSAT LTD.
发明人： Eyal Cohen
IPC分类号： H04W76/22
CPC分类号： H04W76/22
摘要： A method for content delivery includes, in an edge gateway (64) coupled to an access network, intercepting packets that are communicated over a network tunnel between a user device (24) and a core network (36) for delivering content from a remote content server to the user device. The network tunnel is redirected toward a local content server (60) coupled to the access network. The content is delivered to the user device from the local content server over the redirected network tunnel.

8. 发明申请

US20140079163A1 TIMING RECOVERY FOR LOW ROLL-OFF FACTOR SIGNALS 有权
标题翻译：用于低滚降因子信号的时序恢复
公开(公告)号：US20140079163A1
公开(公告)日：2014-03-20
申请号：US13651487
申请日：2012-10-15
申请人： NOVELSAT LTD.
发明人： Mor Miller , Daniel Wajcer
IPC分类号： H04L27/06
CPC分类号： H04L27/2655 , H04J3/0697 , H04L7/0062 , H04L7/0079 , H04L7/0335 , H04L7/10 , H04N5/04 , H04N21/242 , H04N21/4305
摘要： A method includes receiving a signal, which carries data in a sequence of symbols that are modulated in accordance with a pulse shape and transmitted in accordance with a timing clock. The received signal is filtered with a matched filter whose response is matched to the pulse shape of the symbols, to produce a filtered signal. The timing clock is initially recovered from the received signal prior to filtering with the matched filter. Upon meeting a predefined condition, a switch is made to recover the timing clock from the filtered signal after filtering with the matched filter. The symbols are demodulated using the recovered timing clock, so as to reconstruct the data.
摘要翻译：一种方法包括接收信号，该信号携带根据脉冲形状调制并按照定时时钟发送的符号序列中的数据。接收到的信号用匹配的滤波器进行滤波，该匹配滤波器的响应与符号的脉冲形状匹配，以产生滤波信号。在使用匹配滤波器进行滤波之前，定时时钟最初从接收信号中恢复。在达到预定条件时，使用匹配滤波器进行滤波后，从滤波信号中恢复定时时钟。使用恢复的定时时钟解调符号，以便重构数据。

9. 发明授权

US10135518B2 Echo cancellation in communication transceivers 有权
公开(公告)号：US10135518B2
公开(公告)日：2018-11-20
申请号：US14439675
申请日：2013-11-04
申请人： NOVELSAT LTD.
发明人： Daniel Wajcer , Avihay Sadeh Shirazi , Dan Peleg , Yuval Shalom , Itzhak Wulkan
IPC分类号： H04B7/00 , H04B7/155 , H04B7/185 , H04L25/03
摘要： A method includes, in a transceiver (28, 160), receiving from a repeater (32, 168) a received signal that includes a desired signal for reception and an undesired replica of a transmitted signal that was transmitted from the transceiver and retransmitted by the repeater. A local copy of the transmitted signal is generated in the transceiver. The local copy is matched with the undesired replica of the transmitted signal in the received signal, by adapting the received signal while retaining the local copy non-adaptive. An interference caused by the undesired replica to the desired signal is canceled, by subtracting the local copy from the adapted received signal.

10. 发明授权

US08903028B2 Timing recovery for low roll-off factor signals 有权
标题翻译：低滚降因子信号的定时恢复
公开(公告)号：US08903028B2
公开(公告)日：2014-12-02
申请号：US13651487
申请日：2012-10-15
申请人： NovelSat Ltd.
发明人： Mor Miller , Daniel Wajcer
IPC分类号： H04L27/06 , H03D1/00 , H04L27/26
CPC分类号： H04L27/2655 , H04J3/0697 , H04L7/0062 , H04L7/0079 , H04L7/0335 , H04L7/10 , H04N5/04 , H04N21/242 , H04N21/4305
摘要： A method includes receiving a signal, which carries data in a sequence of symbols that are modulated in accordance with a pulse shape and transmitted in accordance with a timing clock. The received signal is filtered with a matched filter whose response is matched to the pulse shape of the symbols, to produce a filtered signal. The timing clock is initially recovered from the received signal prior to filtering with the matched filter. Upon meeting a predefined condition, a switch is made to recover the timing clock from the filtered signal after filtering with the matched filter. The symbols are demodulated using the recovered timing clock, so as to reconstruct the data.
摘要翻译：一种方法包括接收信号，该信号携带根据脉冲形状调制并按照定时时钟发送的符号序列中的数据。接收到的信号用匹配的滤波器进行滤波，该匹配滤波器的响应与符号的脉冲形状匹配，以产生滤波信号。在使用匹配滤波器进行滤波之前，定时时钟最初从接收信号中恢复。在达到预定条件时，使用匹配滤波器进行滤波后，从滤波信号中恢复定时时钟。使用恢复的定时时钟解调符号，以便重构数据。

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