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公开(公告)号：US10763995B2
公开(公告)日：2020-09-01
申请号：US15751589
申请日：2015-08-11
摘要： An iterative receiver receives a signal including useful and interfering signal components, and detects information carried thereon. The receiver includes at least one estimating unit receiving the signal and providing an estimate of each signal component, and at least two decoding and regenerating units, at each iteration, each decoding and regenerating unit decoding a respective one among the estimates and for regenerating the respective decoded estimate into a respective regenerated estimate. At each receiver iteration, the at least one estimating unit provides estimates based on regenerated estimates provided at a previous iteration. The receiver further includes a control unit determines activation or deactivation of each decoding and regenerating unit at each process step of a detection process dedicated to detection of the signal, and determines, for each process step, a respective number of allowed iterations for each decoding and regenerating unit whose activation has been determined for that process step.
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公开(公告)号：US20220116245A1
公开(公告)日：2022-04-14
申请号：US17299853
申请日：2019-11-28
IPC分类号： H04L25/02 , H04L25/08 , H04B17/345
摘要： A receiver adapted to receive a modulated signal including useful and interfering signals and to detect information bits carried thereon. The modulated signal comprises signal components each one associated with a respective modulation subcarrier and including respective useful and interfering signal components. The receiver may include a first estimation unit providing a respective first useful signal component estimate indicative of the useful signal component for each signal component; a second estimation unit providing a respective second useful signal component estimate indicative of the useful signal component for each signal component; a channel estimation unit estimating, for each signal component, a first channel frequency response associated with the respective useful signal component and a second channel frequency response associated with the respective interfering signal component; and a control unit determining, for each signal component, an interference level experienced by that signal component according to respective first and second channel frequency responses.
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公开(公告)号：US20160329919A1
公开(公告)日：2016-11-10
申请号：US15109358
申请日：2013-12-30
发明人： Marco Caretti , Ivano Collotta , Bruno Melis , Marina Mondin
CPC分类号： H04B1/10 , H04B1/7107 , H04L1/0009 , H04L1/005 , H04L1/0051 , H04L1/0061 , H04L1/0067 , H04L1/0643
摘要： An iterative receiver is proposed for receiving in a cell a signal and for providing information carried on the signal by execution of at least one processing iteration. The receiver includes an estimate assembly for receiving the signal and providing, at each one of the processing iterations, a respective information estimate; a regeneration assembly for receiving, at each processing iteration, the information estimate provided by the estimate assembly at that iteration, and for providing a regenerated signal therefrom based on the information estimate and on attenuation of radio channels over which the signal has been transmitted; an interference estimate unit for providing, at each iteration, an interference estimate based on the signal and the regenerated signal, the estimate assembly providing, starting from a second processing iteration of the processing iterations, the information estimate based on the interference estimate; and an extraction unit for extracting the information from the information estimate.
摘要翻译： 提出了一种迭代接收机，用于在小区中接收信号，并且通过执行至少一个处理迭代来提供携带在信号上的信息。 接收机包括用于接收信号的估计组件，并在每个处理迭代处提供相应的信息估计; 再生组件，用于在每个处理迭代处接收在该迭代中由估计组件提供的信息估计，并且基于信息估计和信号已被发送的无线电信道的衰减来提供其再生信号; 干扰估计单元，用于在每次迭代时提供基于所述信号和所述再生信号的干扰估计，所述估计组合从所述处理迭代的第二处理迭代开始，基于所述干扰估计提供所述信息估计; 以及提取单元，用于从信息估计中提取信息。
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公开(公告)号：US11979258B2
公开(公告)日：2024-05-07
申请号：US17299853
申请日：2019-11-28
IPC分类号： H04L25/02 , H04B17/345 , H04L25/08 , H04L25/06
CPC分类号： H04L25/0204 , H04B17/345 , H04L25/022 , H04L25/0224 , H04L25/0256 , H04L25/08 , H04L25/067
摘要： A receiver adapted to receive a modulated signal including useful and interfering signals and to detect information bits carried thereon. The modulated signal comprises signal components each one associated with a respective modulation subcarrier and including respective useful and interfering signal components. The receiver may include a first estimation unit providing a respective first useful signal component estimate indicative of the useful signal component for each signal component; a second estimation unit providing a respective second useful signal component estimate indicative of the useful signal component for each signal component; a channel estimation unit estimating, for each signal component, a first channel frequency response associated with the respective useful signal component and a second channel frequency response associated with the respective interfering signal component; and a control unit determining, for each signal component, an interference level experienced by that signal component according to respective first and second channel frequency responses.
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公开(公告)号：US09787337B2
公开(公告)日：2017-10-10
申请号：US15109358
申请日：2013-12-30
发明人： Marco Caretti , Ivano Collotta , Bruno Melis , Marina Mondin
IPC分类号： H04B1/10 , H04L1/06 , H04B1/7107 , H04L1/00
CPC分类号： H04B1/10 , H04B1/7107 , H04L1/0009 , H04L1/005 , H04L1/0051 , H04L1/0061 , H04L1/0067 , H04L1/0643
摘要： An iterative receiver is proposed for receiving in a cell a signal and for providing information carried on the signal by execution of at least one processing iteration. The receiver includes an estimate assembly for receiving the signal and providing, at each one of the processing iterations, a respective information estimate; a regeneration assembly for receiving, at each processing iteration, the information estimate provided by the estimate assembly at that iteration, and for providing a regenerated signal therefrom based on the information estimate and on attenuation of radio channels over which the signal has been transmitted; an interference estimate unit for providing, at each iteration, an interference estimate based on the signal and the regenerated signal, the estimate assembly providing, starting from a second processing iteration of the processing iterations, the information estimate based on the interference estimate; and an extraction unit for extracting the information from the information estimate.
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公开(公告)号：US10411818B2
公开(公告)日：2019-09-10
申请号：US15778820
申请日：2015-11-30
发明人： Ivano Collotta , Roberto Fantini , Maurizio Fodrini , Bruno Melis
IPC分类号： H04L25/02 , H04B17/336 , H04W52/24 , H04B17/327
摘要： A method for estimating a signal to interference and noise ratio of a communication link between a first node and a second node of a wireless communication network, the network comprising a number of further communication links between said first node and a number of further nodes. The method comprises, at the first node, providing first estimates of useful signal powers on all the links; providing second estimates of the signal powers on the link and on the further communication links on the basis of, jointly, the first estimate of the signal power on the link and the first estimates of the signal powers on the further links; estimating the signal to interference and noise ratio as a ratio between the second estimate of the signal power on the link and a power term comprising a sum of the second estimates of the signal powers on the further links.
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