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公开(公告)号：US11632151B2
公开(公告)日：2023-04-18
申请号：US17253472
申请日：2018-06-20
IPC分类号： H04B7/0452 , H04B7/0426 , H04W52/14 , H04W52/24 , H04B17/17 , H04W52/26 , H04W52/34
摘要： Disclosed is a method of a first wireless communication device configured for massive multi-user multiple-input multiple output (MU-MEMO) communication with two or more second wireless communication devices. The first wireless communication device comprises a plurality of antenna ports, each antenna port associated with at least one of a digital-to-analog converter (DAC) and an analog-to-digital converter (ADC). The method comprises acquiring an estimation of a communication channel between the first wireless communication device and the second wireless communication devices and acquiring an estimation of a quantization distortion caused by either DACs or ADCs. The method also comprises jointly determining (for the two or more second wireless communication devices) a transmission power and a transmission resource for each of the second wireless communication devices, wherein the joint determination is based on the estimation of the communication channel and on the estimation of the quantization distortion. Corresponding apparatus, network node and computer program product are also disclosed.
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公开(公告)号：US11569559B2
公开(公告)日：2023-01-31
申请号：US16608458
申请日：2017-04-28
发明人： Mikael Coldrey , Andreas Nilsson
摘要： A method (10) for restoring a microwave link is provided. The method (10) is performed by a network entity (7) and comprises receiving (11) information from a node (3) controlling a microwave antenna (5), the information indicating that an obstacle is at least partly obscuring the microwave antenna (5), and instructing (12), based on the received information, an unmanned aerial vehicle (6) adapted for maintenance work to fly to a given location for removing the obstacle on the microwave antenna (5). A method (40) in a network node (3), a method (70) in an unmanned aerial vehicle (6) and devices are also provided.
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公开(公告)号：US11050466B2
公开(公告)日：2021-06-29
申请号：US16765954
申请日：2017-12-15
发明人： Mikael Coldrey , Mona Hashemi , Lars Manholm , Jonas Fridén
IPC分类号： H04B7/0426 , H04B7/0408 , H04B7/06
摘要： A method for alignment of an antenna in a microwave radio link system in Non-Line-Of Sight (NLOS) conditions. The method includes having a pointer indicating a first position on a surface to define a first candidate reflection/diffraction point on the surface, aligning a first antenna at a first node and a second antenna at a second node towards the first candidate reflection/diffraction point, and recording a relevant property concerning the channel quality between the first node and the second node via the first candidate reflection/diffraction point. The pointer may be a drone. Related devices and systems are disclosed.
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公开(公告)号：US11011820B2
公开(公告)日：2021-05-18
申请号：US15112057
申请日：2014-01-20
摘要： The disclosure relates to an antenna system 1 for providing coverage for multiple-input multiple-output, MIMO, communication in mixed type of spaces. The antenna system 1 comprises a leaky cable 2 arranged to provide coverage in a first type of space, and a distributed antenna system 3 comprising one or more antennas 31, 32, 33, 34 and ranged to provide coverage in a second type of space, wherein each of the one or more antennas 31, 32, 33, 34 of the distributed antenna system 3 is connected to the leaky cable 2 through a circulator 41, 42, 43, and wherein the MIMO communication is enabled by both ends of the leaky cable 2 being adapted for connection to a respective antenna port 8, 9 of a network node 5 configured for 10 MIMO communication. The disclosure also relates to a related method and system.
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公开(公告)号：US20210126726A1
公开(公告)日：2021-04-29
申请号：US17139409
申请日：2020-12-31
发明人： Stefan Parkvall , Janne Peisa , Gunnar Mildh , Robert Baldemair , Stefan Wager , Jonas Kronander , Karl Werner , Richard Abrahamsson , Ismet Aktas , Peter Alriksson , Junaid Ansari , Shehzad Ali Ashraf , Henrik Asplund , Fredrik Athley , Håkan Axelsson , Joakim Axmon , Johan Axnäs , Kumar Balachandran , Gunnar Bark , Jan-Erik Berg , Andreas Bergström , Håkan Björkegren , Nadia Brahmi , Cagatay Capar , Anders Carlsson , Andreas Cedergren , Mikael Coldrey , Icaro L. J. da Silva , Erik Dahlman , Ali el Essaili , Ulrika Engström , Mårten Ericson , Erik Eriksson , Mikael Fallgren , Rui Fan , Gabor Fodor , Pål Frenger , Jonas Fridén , Jonas Fröberg Olsson , Anders Furuskär , Johan Furuskog , Virgile Garcia , Ather Gattami , Fredrik Gunnarsson , Ulf Gustavsson , Bo Hagerman , Fredrik Harrysson , Ning He , Martin Hessler , Kimmo Hiltunen , Songnam Hong , Dennis Hui , Jörg Huschke , Tim Irnich , Sven Jacobsson , Niklas Jaldén , Simon Järmyr , Zhiyuan Jiang , Niklas Johansson , Martin Johansson , Du Ho Kang , Eleftherios Karipidis , Patrik Karlsson , Ali S. Khayrallah , Caner Kilinc , Göran N. Klang , Sara Landström , Christina Larsson , Gen Li , Lars Lindbom , Robert Lindgren , Bengt Lindoff , Fredrik Lindqvist , Jinhua Liu , Thorsten Lohmar , Qianxi Lu , Lars Manholm , Ivana Maric , Jonas Medbo , Qingyu Miao , Reza Moosavi , Walter Müller , Elena Myhre , Karl Norrman , Bengt-Erik Olsson , Torgny Palenius , Sven Petersson , Jose Luis Pradas , Mikael Prytz , Olav Queseth , Pradeepa Ramachandra , Edgar Ramos , Andres Reial , Thomas Rimhagen , Emil Ringh , Patrik Rugeland , Johan Rune , Joachim Sachs , Henrik Sahlin , Vidit Saxena , Nima Seifi , Yngve Selén , Eliane Semaan , Sachin Sharma , Cong Shi , Johan Sköld , Magnus Stattin , Anders Stjernman , Dennis Sundman , Lars Sundström , Miurel Isabel Tercero Vargas , Claes Tidestav , Sibel Tombaz , Johan Torsner , Hugo Tullberg , Jari Vikberg , Peter von Wrycza , Thomas Walldeen , Pontus Wallentin , Hai Wang , Ke Wang Helmersson , Jianfeng Wang , Yi-Pin Eric Wang , Niclas Wiberg , Emma Wittenmark , Osman Nuri Can Yilmaz , Ali Zaidi , Zhan Zhang , Zhang Zhang , Yanli Zheng
IPC分类号： H04J11/00 , H04B7/0452 , H04L29/06 , H04L5/00 , H04L5/14 , H04W4/00 , H04W8/18 , H04B7/08 , H04W72/12 , H04W74/08 , H04W74/02
摘要： Methods and apparatus in a fifth-generation wireless communications, including an example method, in a wireless device, that includes receiving a downlink signal comprising an uplink access configuration index, using the uplink access configuration index to identify an uplink access configuration from among a predetermined plurality of uplink access configurations, and transmitting to the wireless communications network according to the identified uplink access configuration. The example method further includes, in the same wireless device, receiving, in a first subframe, a first Orthogonal Frequency-Division Multiplexing (OFDM) transmission formatted according to a first numerology and receiving, in a second subframe, a second OFDM transmission formatted according to a second numerology, the second numerology differing from the first numerology. Variants of this method, corresponding apparatuses, and corresponding network-side methods and apparatuses are also disclosed.
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公开(公告)号：US10938497B2
公开(公告)日：2021-03-02
申请号：US16714350
申请日：2019-12-13
发明人： Stefan Parkvall , Janne Peisa , Gunnar Mildh , Robert Baldemair , Stefan Wager , Jonas Kronander , Karl Werner , Richard Abrahamsson , Ismet Aktas , Peter Alriksson , Junaid Ansari , Shehzad Ali Ashraf , Henrik Asplund , Fredrik Athley , Håkan Axelsson , Joakim Axmon , Johan Axnäs , Kumar Balachandran , Gunnar Bark , Jan-Erik Berg , Andreas Bergström , Håkan Björkegren , Nadia Brahmi , Cagatay Capar , Anders Carlsson , Andreas Cedergren , Mikael Coldrey , Icaro L. J. da Silva , Erik Dahlman , Ali el Essaili , Ulrika Engström , Mårten Ericson , Erik Eriksson , Mikael Fallgren , Rui Fan , Gabor Fodor , Pål Frenger , Jonas Fridén , Jonas Fröberg Olsson , Anders Furuskär , Johan Furuskog , Virgile Garcia , Ather Gattami , Fredrik Gunnarsson , Ulf Gustavsson , Bo Hagerman , Fredrik Harrysson , Ning He , Martin Hessler , Kimmo Hiltunen , Songnam Hong , Dennis Hui , Jörg Huschke , Tim Irnich , Sven Jacobsson , Niklas Jaldén , Simon Järmyr , Zhiyuan Jiang , Niklas Johansson , Martin Johansson , Du Ho Kang , Eleftherios Karipidis , Patrik Karlsson , Ali S. Khayrallah , Caner Kilinc , Göran N. Klang , Sara Landstrom , Christina Larsson , Gen Li , Lars Lindbom , Robert Lindgren , Bengt Lindoff , Fredrik Lindqvist , Jinhua Liu , Thorsten Lohmar , Qianxi Lu , Lars Manholm , Ivana Maric , Jonas Medbo , Qingyu Miao , Reza Moosavi , Walter Müller , Elena Myhre , Karl Norrman , Bengt-Erik Olsson , Torgny Palenius , Sven Petersson , Jose Luis Pradas , Mikael Prytz , Olav Queseth , Pradeepa Ramachandra , Edgar Ramos , Andres Reial , Thomas Rimhagen , Emil Ringh , Patrik Rugeland , Johan Rune , Joachim Sachs , Henrik Sahlin , Vidit Saxena , Nima Seifi , Yngve Selén , Eliane Semaan , Sachin Sharma , Cong Shi , Johan Sköld , Magnus Stattin , Anders Stjernman , Dennis Sundman , Lars Sundström , Miurel Isabel Tercero Vargas , Claes Tidestav , Sibel Tombaz , Johan Torsner , Hugo Tullberg , Jari Vikberg , Peter von Wrycza , Thomas Walldeen , Pontus Wallentin , Hai Wang , Ke Wang Helmersson , Jianfeng Wang , Yi-Pin Eric Wang , Niclas Wiberg , Emma Wittenmark , Osman Nuri Can Yilmaz , Ali Zaidi , Zhan Zhang , Zhang Zhang , Yanli Zheng
IPC分类号： H04W4/00 , H04W74/08 , H04L5/14 , H04J11/00 , H04B7/0452 , H04B7/08 , H04L5/00 , H04L29/06 , H04W8/18 , H04W74/02 , H04W72/12
摘要： Methods and apparatus in a fifth-generation wireless communications, including an example method, in a wireless device, that includes receiving a downlink signal comprising an uplink access configuration index, using the uplink access configuration index to identify an uplink access configuration from among a predetermined plurality of uplink access configurations, and transmitting to the wireless communications network according to the identified uplink access configuration. The example method further includes, in the same wireless device, receiving, in a first subframe, a first Orthogonal Frequency-Division Multiplexing (OFDM) transmission formatted according to a first numerology and receiving, in a second subframe, a second OFDM transmission formatted according to a second numerology, the second numerology differing from the first numerology. Variants of this method, corresponding apparatuses, and corresponding network-side methods and apparatuses are also disclosed.
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公开(公告)号：US10720976B2
公开(公告)日：2020-07-21
申请号：US15325846
申请日：2016-12-27
IPC分类号： H04B7/04 , H04B7/0456 , H04B7/06 , H04L25/02
摘要： There is provided mechanisms for obtaining channel conditions per antenna element, A method is performed by a wireless radio transceiver device comprising N antenna elements in an antenna array with analog beamforming and being configured to communicate using beams. The method comprises obtaining, for a stationary radio propagation channel, channel conditions for signals received by the wireless radio transceiver device in M beams, where M>1. The method comprises transforming the channel conditions for the M beams to channel conditions for the N antenna elements by using a relation based on beamforming weights that map the N antenna elements to the M beams.
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公开(公告)号：US11831440B2
公开(公告)日：2023-11-28
申请号：US17623149
申请日：2019-07-01
发明人： Behrooz Makki , Mikael Coldrey
IPC分类号： H04L1/1812 , H04L1/00 , H04L1/1829 , H04W28/02 , H04W84/04
CPC分类号： H04L1/1816 , H04L1/0002 , H04L1/1845 , H04W28/0236 , H04W84/047
摘要： A first type node (AP0, AP1, AP2) in a wireless communication system (1), wherein the first type node (AP0, AP1, AP2) is adapted to: —communicate with at least one other first type node (AP0, AP1, AP2) in the wireless communication system (1) over a corresponding channel (hA01, hA12), and —transmit a first plurality of signals (x11, x1i, X1N, X21, X2i, X2N−1) to the other first type node (AP0, AP1, AP2). In the case of the other first type node (AP0, AP1, AP2) requesting re-transmission of a failed signal (x11) in the first plurality of signals (x11, x′1i, X1N, X21, X2i, X2N−1), the first type node (APo, AP1, AP2) is further adapted to: —receive a limit of tolerable interference from the other first type node (APo, APi, AP2), and —re-send the failed signal (xn) in a second plurality of signals (x11, x′2i x′1i, X′1N, X′21, X′2N−1, X′2N, X2N; X11, x′2i, x′1i, X′1N, x′21, x′2N−1, X2N) to the other first type node (AP0, AP1, AP2) while sharing the spectrum for the failed signal (x11) with an additional signal (x′2i) without exceeding the limit of tolerable interference.
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公开(公告)号：US11799539B2
公开(公告)日：2023-10-24
申请号：US17436433
申请日：2019-03-08
发明人： Behrooz Makki , Mikael Coldrey
CPC分类号： H04B7/155 , H04L1/0045
摘要： The present disclosure relates to a first type node in a wireless communication system, wherein the first type node is adapted to: communicate with at least one other first type node in the wireless communication system over a corresponding channel receive a plurality of signals, each signal being associated with a corresponding decoding error probability, from the other first type node estimate the decoding error probability for each signal sort the signals in a decoding order according to the estimated decoding error probability, decode the signals one at the time from the lowest estimated decoding error probability to the highest estimated decoding error probability until decoding for a certain signal is determined to have failed, request re-transmission of the signal for which decoding has been determined to have failed, and to request re-transmission of all signals having higher decoding error probability than the signal for which decoding has been determined to have failed.
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公开(公告)号：US11490266B2
公开(公告)日：2022-11-01
申请号：US16617023
申请日：2017-05-31
发明人： Mona Hashemi , Mikael Coldrey , Jonas Fridén , Lars Manholm
摘要： A method (20) of planning deployment of a node (2c) in a communications network (1) is disclosed. The method (20) is performed by an unmanned aerial vehicle (3) and comprises: flying (21) to a candidate location (c1, . . . , c9), performing (22), at the candidate location (c1, . . . , c9), measurements on a wireless link (La, Lb) to at least one network node (2a, 2b), and providing (23) measurement results of the measurements to an entity (9). A corresponding method in an entity is also provided, an unmanned aerial vehicle, an entity, computer programs and computer program products.
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