Patents by Inventor Dennis Hui
Dennis Hui has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20190379404Abstract: According to certain embodiments, a method by a transmitter is provided for adaptively generating precoder bits for a Polar code. The method includes acquiring at least one configuration parameter upon which a total number of precoder bits depends. The at least one configuration parameter comprising at least one of an information block length K, a code block length N, and/or a code rate R=K/N. The total number of precoder bits is determined, and the precoder bits for a code block are generated according to the determined total number of precoder bits. The precoder bits are placed within the code block.Type: ApplicationFiled: February 6, 2018Publication date: December 12, 2019Inventors: Yufei BLANKENSHIP, Dennis HUI
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Patent number: 10499324Abstract: A transmitter and a method therein for transmitting discovery signals to a receiver. The transmitter and the receiver are comprised in a radio communications system. The transmitter transmits two or more discovery signals over two or more directions. Each discovery signal is configured to span over a fraction of a carrier bandwidth.Type: GrantFiled: March 20, 2018Date of Patent: December 3, 2019Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Robert Baldemair, Kumar Balachandran, Dennis Hui
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Patent number: 10498490Abstract: Systems and methods related to concatenated polar encoding with interleaving are disclosed. In some embodiments, a method of operation of a radio node to perform encoding of a plurality of data bits for transmission by the radio node comprises encoding a plurality of data bits using a linear encoder to provide a first plurality of coded bits, where the first plurality of coded bits comprises a plurality of parity bits and the plurality of data bits. The method further comprises interleaving the first plurality of coded bits in accordance with an interleaving mapping to provide a plurality of interleaved bits and encoding the plurality of interleaved bits using a polar encoder to provide a second plurality of coded bits to be transmitted by the radio node.Type: GrantFiled: January 30, 2019Date of Patent: December 3, 2019Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Dennis Hui, Yufei Blankenship
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Publication number: 20190349990Abstract: The disclosure relates to radio access systems, and more specifically to methods for media access in radio access systems. The disclosure relates to a method, performed in a first node 20b, 20c, 20d in a wireless communication system, of accessing a shared media for directive signal transmission from the first node, the method comprises three steps. The first step is receiving, from a second node, a pilot signal announcing a directive signal transmission to or from the second node. The second step is predicting based on information in the received pilot signal, a collision rate between an intended directive signal transmission from the first node and the announced directive signal transmission, the information defining the channel resources used by the announced directive signal transmission and the third step is accessing the shared media based on the predicted collision rate.Type: ApplicationFiled: July 26, 2019Publication date: November 14, 2019Inventors: Robert BALDEMAIR, Jonas KRONANDER, Dennis HUI, Kumar BALACHANDRAN, Nadia BRAHMI
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Publication number: 20190349989Abstract: The disclosure relates to radio access systems, and more specifically to methods for media access in radio access systems. The disclosure relates to a method, performed in a first node 20b, 20c, 20d in a wireless communication system, of accessing a shared media for directive signal transmission from the first node, the method comprises three steps. The first step is receiving, from a second node, a pilot signal announcing a directive signal transmission to or from the second node. The second step is predicting based on information in the received pilot signal, a collision rate between an intended directive signal transmission from the first node and the announced directive signal transmission, the information defining the channel resources used by the announced directive signal transmission and the third step is accessing the shared media based on the predicted collision rate.Type: ApplicationFiled: July 26, 2019Publication date: November 14, 2019Inventors: Robert BALDEMAIR, Jonas KRONANDER, Dennis HUI, Kumar BALACHANDRAN, Nadia BRAHMI
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Patent number: 10461779Abstract: Systems and methods are disclosed herein relating to rate-compatible polar codes and the use thereof in a wireless communications system. In some embodiments, a transmit node operable for use in a wireless communications system comprises a rate-compatible polar encoder operable to encode information bits to provide coded bits utilizing parallel concatenated polar codes. The transmit node further comprises a transmitter operable to transmit the plurality of coded bits. In this manner, the transmit node may, in some embodiments, use polar codes having different coding rates to adapt to time-varying channel conditions.Type: GrantFiled: August 12, 2015Date of Patent: October 29, 2019Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Songnam Hong, Dennis Hui, Ivana Marić
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Publication number: 20190319647Abstract: A node (110, 115) receives (804) transmissions associated with a given set of information bits, wherein each of the transmissions use a different polar code and share one or more information bits of the given set of information bits. The node determines (808), at each of a plurality of polar decoders (505, 605) of the node, soft information for each information bit included in an associated one of the transmissions, wherein each of the plurality of polar decoders is associated with a different transmission of the transmissions. The node provides (812), from each polar decoder of the plurality to one or more other polar decoders of the plurality, the determined soft information for any information bits shared by their respective associated transmissions, and uses (816) the provided soft information in an iterative decoding process to decode one or more of the received transmissions.Type: ApplicationFiled: June 25, 2019Publication date: October 17, 2019Inventors: Dennis Hui, Mattias Andersson, Yufei Blankenship, Ivana Maric
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Publication number: 20190306838Abstract: Systems and methods for multi-stage downlink control information transmission in a manner that supports existing polar codes are provided. In some embodiments, a method of operation of a radio access node in a cellular communications network to transmit multi-stage downlink control information comprises transmitting a first part of a multi-stage downlink control information in a first Orthogonal Frequency Division Multiplexing (OFDM) symbol and transmitting a second part of the multi-stage downlink control information in a second OFDM symbol that is subsequent to the first OFDM symbol. Cyclic Redundancy Check (CRC) bits are attached to the first part of the multi-stage downlink control information and/or CRC bits are attached to the second part of the multi-stage downlink control information. In some embodiments, the first part and/or the second part of the multi-stage downlink control information is encoded using a polar encoder.Type: ApplicationFiled: December 26, 2017Publication date: October 3, 2019Inventors: Dennis Hui, Yufei Blankenship
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Patent number: 10412654Abstract: The proposed layer solution defines two or more layers of relay nodes to convey traffic data from a source node to a destination node. All of the nodes in a given layer were selected for that layer because they each satisfied a signal quality requirement specified for that layer, where all relay nodes defined in one layer simultaneously start transmitting in response to a received transmission. Due to the layered approach, the destination node may be configured to decode only the traffic data relayed by the relay nodes in the immediately preceding (final) layer while treating any remaining received signals as noise. As a result, only those access nodes most likely to significantly contribute to and improve the signal quality of traffic data received at the destination node are selected as relay nodes for a particular source-destination node pair.Type: GrantFiled: February 17, 2014Date of Patent: September 10, 2019Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Ivana Maric, Dennis Hui
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Patent number: 10396970Abstract: A wireless communication system comprises a source node, a destination node, and a plurality of half-duplex relay nodes disposed between the source node and the destination node. The half-duplex relay nodes are configured in two disjoint paths each comprising an equal number of hops from the source node to the destination node. The source node is configured to alternately transmit information via the two disjoint paths in alternating time slots, and the destination node is configured to alternately receive information via the two disjoint paths in alternating time slots.Type: GrantFiled: January 22, 2016Date of Patent: August 27, 2019Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Dennis Hui, Ivana Maric, Songnam Hong
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Patent number: 10397951Abstract: The disclosure relates to radio access systems, and more specifically to methods for media access in radio access systems. The disclosure relates to a method, performed in a first node in a wireless communication system, of accessing a shared media for directive signal transmission from the first node, the method comprises three steps. The first step is receiving, from a second node, a pilot signal announcing a directive signal transmission to or from the second node. The second step is predicting based on information in the received pilot signal, a collision rate between an intended directive signal transmission from the first node and the announced directive signal transmission, the information defining the channel resources used by the announced directive signal transmission and the third step is accessing the shared media based on the predicted collision rate.Type: GrantFiled: October 25, 2013Date of Patent: August 27, 2019Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.Inventors: Robert Baldemair, Jonas Kronander, Dennis Hui, Kumar Balachandran, Nadia Brahmi
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Publication number: 20190260391Abstract: A method of decoding a polar coded signal includes determining channel reliabilities for a plurality of polar coded bit channels in a data communication system including a plurality of frozen bit channels and non-frozen bit channels, selecting a frozen bit channel, calculating a likelihood value for a bit estimate associated with the frozen bit channel, generating a hard decision value for the bit estimate in response to the likelihood value, comparing the hard decision value for the bit estimate to a known value of a frozen bit transmitted on the frozen bit channel, in response to determining that the hard decision value for the bit estimate differs from the known value of the frozen bit transmitted on the frozen bit channel, updating an accumulated uncertainty, comparing the accumulated uncertainty to a threshold, and determining that a decoding error has occurred in response to the comparison.Type: ApplicationFiled: November 10, 2017Publication date: August 22, 2019Inventors: Dennis Hui, Yufei Blankenship
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Publication number: 20190253188Abstract: Systems and methods are described herein that allow information carrying bits of a transmission block to be placed at higher-reliability positions prior to transmission. An exemplary method includes generating a set of payload bits to be encoded for transmission, wherein the set of payload bits includes at least one known bit, interleaving the set of payload bits to generate an interleaved set of payload bits, wherein the interleaved set includes the at least one known bit in a predetermined position in the interleaved set, providing the interleaved set to a cyclic redundancy check (CRC) encoder to generate CRC-interleaved set of payload bits, wherein the CRC-interleaved set includes the at least one known bit in a predetermined position within the CRC-interleaved set, and encoding the CRC-interleaved set for transmission to a wireless device. Associated network nodes and wireless devices are included.Type: ApplicationFiled: March 5, 2019Publication date: August 15, 2019Inventors: Anders Wesslén, Dennis Hui, Yufei Blankenship
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Publication number: 20190245650Abstract: A method in a node (110, 115) comprises generating (604) a plurality of constituent polar codes, each of the plurality of constituent polar codes having an associated block length and an associated set of information bits. The method comprises coupling (608) at least a portion of the sets of information bits associated with each of the plurality of constituent polar codes to generate a spatially coupled polar code. The method comprises encoding (612) a wireless transmission using the spatially coupled polar code.Type: ApplicationFiled: September 29, 2017Publication date: August 8, 2019Inventors: Dennis HUI, Yufei BLANKENSHIP, Songnam Hong, Ivana MARIC
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Patent number: 10367677Abstract: Methods and apparatus in a fifth-generation wireless communications network, including an example method, in a wireless device, that includes determining a reporting quality threshold for a parameter related to channel state information (CSI); performing a measurement for each of a plurality of beams from a first predetermined set of beams for evaluation; evaluating the measurement for each of the plurality of beams against the reporting quality threshold; discontinuing the performing and evaluating of measurements in response to determining that the reporting quality threshold is met for one of the beams, such that one or more beams in the first predetermined set of beams are not measured and evaluated; and reporting, to the wireless communications network, CSI for the one of the beams.Type: GrantFiled: May 13, 2016Date of Patent: July 30, 2019Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: 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, Rul Fan, Gabor Fodor, Pål Frenger, Jonas Fridén, Jonas Fröberg Olsson, Anders Furuskár, 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, Martin Johansson, Niklas Johansson, Du Ho Kang, Eleftherios Karipidis, Patrik Karlsson, Ali S. Khayrallah, Caner Kilinc, Göran N. Klang, Sara Landström, Christina Larsson, Gen Li, Bo Lincoln, 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, Johan Nilsson, 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, Anders Wallén, 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, Yanil Zheng
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Publication number: 20190229850Abstract: According to some embodiments, a method performed by a wireless device for polar encoding payload bits comprises: identifying payload bits of a data channel that have known values; placing a first subset of the known payload bits at input positions of a polar encoder that correspond to the earliest decoding bit positions of the polar encoder; placing a second subset of the known payload bits at input positions of the polar encoder that correspond to the least reliable decoding bit positions of the polar encoder after placement of the first subset of the known payload bits; and transmitting the polar encoded payload bits to a wireless receiver. The first subset of the known payload bits are placed in earliest decoding bit positions to improve early termination gain. The second subset of the known payload bits are placed in least reliable decoding bit positions to enhance error performance.Type: ApplicationFiled: February 11, 2019Publication date: July 25, 2019Inventors: Dennis HUI, Yufei BLANKENSHIP, Anders WESSLÉN
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Patent number: 10361747Abstract: A method of synchronizing transmission of signals from a network node to a receiver includes generating a synchronization signal transmission pattern in which transmission resources used for transmission of the synchronization signals in regularly spaced time intervals are changed in successive ones of the time intervals, and transmitting synchronization signals from the network node in accordance with the synchronization signal transmission pattern. Related network nodes and user equipment nodes are disclosed.Type: GrantFiled: October 24, 2014Date of Patent: July 23, 2019Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventors: Johan Axnäs, Kumar Balachandran, Dennis Hui
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Publication number: 20190215049Abstract: According to certain embodiments, a method in a network node is provided for adaptive initial synchronization beam sweep transmission. The method includes transmitting a plurality of initial synchronization beams with at least two different beam sweep cycles. At least one beam sweep cycle is an exhaustive beam sweep cycle and at least one beam sweep cycle is an optimized beam sweep cycle. The exhaustive beam sweep cycle covers all of a serving area of the cell and the optimized beam sweep cycle covers a subset of the serving area.Type: ApplicationFiled: July 28, 2017Publication date: July 11, 2019Inventors: Igor Moaco GUERREIRO, Johan AXNÃS, Robert BALDEMAIR, Dennis HUI, Eleftherios KARIPIDIS
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Patent number: 10333560Abstract: A node (110, 115) receives (804) transmissions associated with a given set of information bits, wherein each of the transmissions use a different polar code and share one or more information bits of the given set of information bits. The node determines (808), at each of a plurality of polar decoders (505, 605) of the node, soft information for each information bit included in an associated one of the transmissions, wherein each of the plurality of polar decoders is associated with a different transmission of the transmissions. The node provides (812), from each polar decoder of the plurality to one or more other polar decoders of the plurality, the determined soft information for any information bits shared by their respective associated transmissions, and uses (816) the provided soft information in an iterative decoding process to decode one or more of the received transmissions.Type: GrantFiled: August 10, 2017Date of Patent: June 25, 2019Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Dennis Hui, Mattias Andersson, Yufei Blankenship, Ivana Maric
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Patent number: 10313161Abstract: The present disclosure presents a method performed in a first node in a wireless communication system, of accessing a shared channel for transmission from the first node to at least one second node. The method comprises the step of receiving, from a third node a pilot signal announcing reception in the third node, wherein the pilot signal comprises information enabling estimation of a channel response from the first node to the third node; estimating, using the pilot signal, a channel response from the first node to the third node and predicting, based on the estimated channel response, an interference level at the receiver of the third node of a directive transmission from the first node to the second node; and accessing the shared channel based on the predicted interference level.Type: GrantFiled: October 25, 2013Date of Patent: June 4, 2019Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Dennis Hui, Robert Baldemair, Jonas Kronander, Kumar Balachandran
