Patents by Inventor Dennis Sundman

Dennis Sundman 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).

  • RECEIVER, COMMUNICATION APPARATUS, METHOD AND COMPUTER PROGRAM
    Publication number: 20200280479
    Abstract: A receiver receives binary information from a transmission using a binary amplitude shift keying where information symbols are represented by a signal including a first power state and a second power state. A duration of a bit includes a first part where the second power state is applied irrespective of which binary value is represented, and a second part where a binary value is represented by any of the first power and a third power state or a combination pattern of the first power state and the third power state. A sampling circuit is arranged to retrieve samples of the received signal during the second part and discard samples during the first part. A duration of the retrieving of samples is selected to be a time corresponding to the duration of the second part plus a time based on an expected synchronization error.
    Type: Application
    Filed: September 26, 2018
    Publication date: September 3, 2020
    Inventors: Leif WILHELMSSON, Miguel LOPEZ, Dennis SUNDMAN
  • Wake-Up Signal Transmission
    Publication number: 20200267651
    Abstract: A method of a network node is disclosed. The method is for concurrently transmitting two or more wake-up signals (WUS) using an signal generator applying an signal generator symbol rate, wherein each WUS is for reception by a wake-up receiver (WUR) of a respective wireless communication device. The method comprises selecting a respective Manchester coding symbol rate for each of the two or more WUS, wherein all of the selected respective Manchester coding symbol rates are different from each other, and wherein all Manchester codes having the selected respective Manchester coding symbol rates are orthogonal to each other. The method also comprises generating each of the two or more WUS using the signal generator and application of a Manchester code of the selected respective Manchester coding symbol rate, and multiplexing the two or more WUS for transmission in a WUS message.
    Type: Application
    Filed: August 23, 2018
    Publication date: August 20, 2020
    Inventors: Leif Wilhelmsson, Miguel Lopez, Dennis Sundman
  • Industrial Automation with 5G and Beyond
    Publication number: 20200259896
    Abstract: Techniques for enhancing performance in Industrial Internet-of-Things (IIoT) scenarios, including techniques for time-sensitive networking (TSN) and 5G wireless network integration. An example method, performed by a wireless device, comprises receiving system information (SI) from a radio base station (RBS) of a radio access network (RAN), the SI being indicative of support for TSN through the RBS, and establishing at least one TSN stream with an external data network, through the RBS. The example method further includes receiving a first timing signal from the wireless communications network, via the RBS, receiving a second timing signal from the external TSN data network to which the wireless device is connected, comparing the first timing signal to the second timing signal to determine an offset, and transmitting the offset to the wireless communications network.
    Type: Application
    Filed: February 13, 2019
    Publication date: August 13, 2020
    Inventors: Joachim Sachs, Abdulrahman Alabbasi, Mattias Andersson, Niklas Andgart, Ola Angelsmark, José Araújo, Muhammad Ikram Ashraf, Kumar Balachandran, Robert Baldemair, Rodrigo Berg, Yufei Blankenship, Fedor Chernogorov, John Walter Diachina, Torsten Dudda, Henrik Enbuske, Sorour Falahati, János Farkas, Jonas Fröberg Olsson, Majid Gerami, Harald Gustafsson, Kimmo Hiltunen, Andreas Höglund, Torgny Holmberg, Zsolt Kenesi, András Kern, Kittipong Kittichokechai, Anna Larmo, Johan Lundsjö, György Miklós, Hubertus Munz, Gabor Nemeth, Johannes Nygren, Johan Olsson, Alexandros Palaios, Dhruvin Patel, Joakim Persson, Per Persson, Jose Luis Pradas, Sándor Rácz, Pradeepa Ramachandra, Norbert Reider, Dinand Roeland, Stefano Ruffini, Patrik Salmela, Sara Sandberg, Magnus Sandgren, Paul Schliwa-Bertling, Alexey Shapin, Nianshan Shi, Bikramjit Singh, Per Skarin, Bernard Smeets, Ying Sun, Dennis Sundman, Fredrik Svensson, Malgorzata Svensson, Geza Szabo, Wolfgang Tonutti, Balázs Varga, Mårten Wahlström, Kun Wang, Yi-Pin Eric Wang, Osman Nuri Can Yilmaz, Zhenhua Zou, Miguel Lopez
  • Wireless communication device, transmitter and methods therein
    Patent number: 10735230
    Abstract: A transmitter in a first wireless communication device and method therein are disclosed. The transmitter comprises a modulator and a rate selector configured to select a data rate. The rate selector comprises an input configured to receive input bits and an output to provide the bits with the selected data rate. The transmitter further comprises a bit to symbol mapper configured to receive the bits from the rate selector and map the bits to symbols of an arbitrary alphabet. The transmitter further comprises a spreading unit configured to spread the symbols received from the bit to symbol mapper to a chip sequence by means of a spreading code. The transmitter further comprises a re-mapping unit configured to map the chip sequence received from the spreading unit to produce signals for providing to the modulator.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: August 4, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Miguel Lopez, Bo Hagerman, Dennis Sundman
  • Methods and transceivers for wireless communication in a packet based communication network
    Patent number: 10721017
    Abstract: A method is disclosed performed by a second transceiver (140) of a packet based wireless communication network (100) for wireless communication with a first transceiver (130) of the network. The method comprises receiving, from the first transceiver (130), a data sequence comprising a first data field comprising data coded with a first modulation and coding scheme, MCS, and a second data field comprising data coded with a second MCS different from the first MCS, wherein the second transceiver (140) has information indicating that the data of the first data field is coded with the first MCS and the data of the second data field is coded with the second MCS. The method further comprises performing a decoding operation on the data of the first data field using the first MCS and a decoding operation on the data of the second data field using the second MCS, and selecting the first MCS or the second MCS based on a result of the performed decoding operations.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: July 21, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Dennis Sundman, Miguel Lopez, Nafiseh Shariati
  • Wake-Up Signal Management
    Publication number: 20200163018
    Abstract: The invention relates to a method for a wireless communication apparatus, and such an apparatus, configured to use a wake-up signal (WUS), transmitted for waking up a main receiver of a wireless communication device responsive to detection of the WUS by a wake-up receiver (WUR) of the wireless communication device. The method comprises controlling a bandwidth associated with the WUS based on a reception condition metric for the WUR. Embodiments may comprise determining the reception condition metric for the WUR by correlating a received signal comprising the WUS with a WUS reference signal to provide an extreme correlation value, and determining the reception condition metric for the WUR based on the extreme correlation value. In some embodiments, controlling the bandwidth associated with the WUS based on the reception condition metric may comprise controlling a WUS bandwidth based on the reception condition metric.
    Type: Application
    Filed: May 18, 2018
    Publication date: May 21, 2020
    Inventors: Leif Wilhelmsson, Miguel Lopez, Sven Mattisson, Dennis Sundman
  • STA and Method in a Wireless Local Area Network
    Publication number: 20200128556
    Abstract: A method performed by a first Station (STA) for any one out of: transmitting Narrow Band (NB) signals to, and receiving NB signals from, second STAs in a Wireless Local Area Network (WLAN) is provided. The STA performs one or more out of: Transmitting (1001) the NB signals to the second STAs, and receiving (1002) the NB signals from the second STAs. The NB signal symbol boundaries are aligned in time with symbol boundaries of a Wide Band (WB) signal transmitted by any one out of the first STA and another STA. The NB signals start with a preamble comprising an NB-Short Training Field (STF) followed by a NB-Long Training Field (LTF). The NB LTF and NB STF are designed to avoid interference between the NB signals and WB signals.
    Type: Application
    Filed: December 11, 2017
    Publication date: April 23, 2020
    Inventors: Dennis Sundman, Miguel Lopez
  • Methods and stations for power saving in radio communication
    Patent number: 10602449
    Abstract: Methods and stations (200, 204) for enabling power saving in a receiving station (204) when a transmitting station (200) transmits a radio signal to a targeted station (202). The transmitting station (200) sets at least one power limitation bit that indicates an estimated power limitation status of the targeted station (202), and transmits the radio signal with a preamble including the power limitation bit. When receiving said preamble, the receiving station (204) is able to determine whether to receive and decode the remaining complete radio signal or not, based on the power limitation bit. For example, if the receiving station (204) itself is power limited, it can save power by not receiving and decoding the complete radio signal when the power limitation bit in the preamble indicates that the targeted station (202) is non-power limited.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: March 24, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Dennis Sundman, Miguel Lopez
  • A Method of Placing a Node in a Wireless Communication into a Standby Mode, as well as the Corresponding Node
    Publication number: 20200059288
    Abstract: A method of placing a node (10) in a wireless communication network into a standby mode, said node (10) comprising a plurality of antennae (13, 14), a primary radio (11) and a secondary radio (12) wherein said primary radio (11) and said secondary radio (12) share at least two of said plurality of antennae (14), said node (10) further comprising a Radio Frequency, RF, switch (15) arranged to connect said secondary radio (12) to any one of said at least two shared antennae (14), wherein said primary radio (11) is arranged to operate within a first frequency band, and wherein said secondary radio (12) is arranged to operate within a second frequency band, wherein said second frequency band is a sub-band of said first frequency band, said method comprising the steps of receiving (110) a packet; determining (120) for each of said shared antennae (14) separately, a signal quality indicator of said second frequency band corresponding to said received packet; selecting (130) one of said shared antennae (14) based on
    Type: Application
    Filed: March 15, 2018
    Publication date: February 20, 2020
    Inventors: Miguel Lopez, Dennis Sundman, Leif Wilhelmsson
  • Method and apparatus for communication between an access point and a sensor station
    Patent number: 10448281
    Abstract: The present disclosure relates to an access point (2) and to a sensor station (4) and methods performed therein. The access point (2) is adapted to communicate with the sensor station (4) and vice versa, over a communication channel using a contention based channel access. The access point (2) monitors (110) the traffic of the communication channel and estimates a congestion level of the communication channel. Information indicating the congestion level is incorporated (125) into a synchronization frame (200; 300) which is transmitted (140) to the sensor station (4). The sensor station (4) uses the congestion information when it selects which modulation and coding scheme it should use when sending data to the access point.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: October 15, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Dennis Sundman, Piergiuseppe Di Marco, Miguel Lopez
  • First communications device and methods therein for transmitting data to a second communications device
    Patent number: 10440748
    Abstract: A first communications device 102 and a method therein for transmitting data to a second communications device 104 on a sub-channel. The first device performs carrier sensing on a first sub-channel assigned an unknown occupancy state. When the first sub-channel is determined as being vacant, the first device transmits, to the second device, the data on the first sub-channel. When the first sub-channel is determined as being occupied, the first device assigns the first sub-channel an occupied state, starts a first time period associated with the first sub-channel, and performs carrier sensing on a second sub-channel assigned with the unknown occupancy state. When the second sub-channel is determined as being vacant, the first device transmits, to the second device, the data on the second sub-channel. In absence of the second sub-channel assigned an unknown occupancy state, the first device enters an inactive mode until the first time period has expired.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: October 8, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Dennis Sundman, Miguel Lopez, Thomas Nilsson, Nafiseh Shariati
  • ENABLING RELAYED COMMUNICATION IN A WIRELESS COMMUNICATION SYSTEM
    Publication number: 20190289527
    Abstract: According to an aspect of the proposed technology, there is provided a method performed by a network device for enabling relayed communication in at least one direction between a first communication unit and a second communication unit in a wireless communication system. The method comprises the steps of the network device specifying a relay unit for the relayed communication, and the network device determining information for scheduling and/or configuring a first transmission of a data frame from the second communication unit to the specified relay unit and a second transmission of the data frame from the specified relay unit to the first communication unit, and the network device generating a trigger frame including the information for scheduling and/or configuring the first transmission and the second transmission.
    Type: Application
    Filed: October 21, 2016
    Publication date: September 19, 2019
    Inventors: Yu WANG, Dennis SUNDMAN, Jingcheng ZHANG
  • Envelope Modulation for Concurrent Transmission of a Wake-Up Signal and User Data
    Publication number: 20190268849
    Abstract: In one aspect, a transmitting device forms an OFDM signal comprising a plurality of OFDM symbols and carrying user data targeted to a main transceiver of one or more receiving devices. The transmitting device modulates the OFDM signal with a wake-up signature (WUS) targeted to awake-up receiver (WUR) of a receiving device other than the one or more receiving devices. The modulating is performed so as to superimpose a modulation of signal power on the OFDM signal, the resulting variations in signal power conveying the wake-up signature. The modulated OFDM signal is transmitted, where a receiving device receives the OFDM at its WUR. The receiving device detect a WUS modulated in the OFDM signal that is targeted to a wake-up receiver of a receiving device other than the one or more receiving devices. The receiving device wakes up its main transceiver in response to the detecting.
    Type: Application
    Filed: May 5, 2017
    Publication date: August 29, 2019
    Inventors: Miguel Lopez, Dennis Sundman, Leif Wilhelmsson
  • Sleep during NAV/RID backoff
    Patent number: 10390304
    Abstract: The present disclosure relates to a technique of supporting access to a wireless medium of a wireless communication network. A method embodiment comprises: when access of a station (100) to the wireless medium is delayed, determining (S202; S308), by the station, a back-off period indicating the period of time the access of the station to the wireless medium is delayed, and entering (S204; S312), by the station (100), into a sleep mode for a sleep period based on the determined back-off period.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: August 20, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Dennis Sundman, Piergiuseppe Di Marco, Gustav Wikström
  • WIRELESS COMMUNICATION DEVICE, TRANSMITTER AND METHODS THEREIN
    Publication number: 20190229960
    Abstract: A transmitter in a first wireless communication device and method therein are disclosed. The transmitter comprises a modulator and a rate selector configured to select a data rate. The rate selector comprises an input configured to receive input bits and an output to provide the bits with the selected data rate. The transmitter further comprises a bit to symbol mapper configured to receive the bits from the rate selector and map the bits to symbols of an arbitrary alphabet. The transmitter further comprises a spreading unit configured to spread the symbols received from the bit to symbol mapper to a chip sequence by means of a spreading code. The transmitter further comprises a re-mapping unit configured to map the chip sequence received from the spreading unit to produce signals for providing to the modulator.
    Type: Application
    Filed: July 14, 2016
    Publication date: July 25, 2019
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Miguel LOPEZ, Bo HAGERMAN, Dennis SUNDMAN
  • Transmitting node, a receiving node and methods therein for providing enhanced channel coding
    Patent number: 10320524
    Abstract: A Transmitting Node (TN) 102 and a method therein for providing enhanced channel coding of a packet transmitted in a communications network 100. The TN applies, to payload data, an outer channel encoder resulting in a plurality of outer code bits. Further the TN applies an inner channel encoder to the plurality of outer code bits. Furthermore, the TN divides resulting code bits of the inner channel encoder into a first group and one or more second groups. Yet further, the TN generates a first set of OFDM symbols carrying at least a part of the first group, and second sets of OFDM symbols carrying at least a part of the one or more second groups. The TN transmits a packet comprising the first set of OFDM symbols followed by the second sets of OFDM symbols, whereby an enhanced channel coding of the transmitted packet is provided.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: June 11, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Miguel Lopez, Dennis Sundman, Leif Wilhelmsson
  • Methods and devices for modulating and coding data packets
    Patent number: 10305711
    Abstract: A method for modulating and coding a data packet comprising digitally encoded information. The method comprises selecting a hierarchy of modulation and coding schemes to use for modulation and coding of the digitally encoded information. The method also comprises identifying, among the bits in the digitally encoded information and based on the selected hierarchy of modulation and coding schemes, two sets of data, a first set of data and a second set of data, the second set of data being a sub-set of the first set of data and comprising bits different from the most robust bits of the first set of data. The method further comprises performing modulation and coding of the first set of data using a modulation and coding scheme with high order modulation in order to create a first layer of the data packet.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: May 28, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Leif Wilhelmsson, Miguel Lopez, Nafiseh Shariati, Dennis Sundman
  • Access point, wireless device and methods for obtaining information about transmission patterns of interfering radio systems
    Patent number: 10299282
    Abstract: An AP, a wireless device as well as a method performed by the AP and a method performed by the wireless device for communication between the AP and the wireless device are provided. The AP and wireless device are operable in a WLAN employing contention based access for radio resources. The method performed by the AP comprises obtaining (110) information about transmission pattern(s) of interfering radio system(s), and determining (130) a deviation of packet length for transmission(s) of the interfering radio systems(s). The method further comprises indicating (140), to the wireless device the deviation of packet length and the information about transmission pattern(s) of interfering radio system(s) when the deviation is less than a deviation threshold.
    Type: Grant
    Filed: June 10, 2015
    Date of Patent: May 21, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Luis Felipe Del Carpio Vega, Behnam Badihi, Dennis Sundman
  • Methods and Transceivers for Wireless Communication in a Packet based Communication Network
    Publication number: 20190115999
    Abstract: A method is disclosed performed by a second transceiver (140) of a packet based wireless communication network (100) for wireless communication with a first transceiver (130) of the network. The method comprises receiving, from the first transceiver (130), a data sequence comprising a first data field comprising data coded with a first modulation and coding scheme, MCS, and a second data field comprising data coded with a second MCS different from the first MCS, wherein the second transceiver (140) has information indicating that the data of the first data field is coded with the first MCS and the data of the second data field is coded with the second MCS. The method further comprises performing a decoding operation on the data of the first data field using the first MCS and a decoding operation on the data of the second data field using the second MCS, and selecting the first MCS or the second MCS based on a result of the performed decoding operations.
    Type: Application
    Filed: March 9, 2016
    Publication date: April 18, 2019
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Dennis SUNDMAN, Miguel LOPEZ, Nafiseh SHARIATI
  • A Receiving Node, And Methods Therein, For Estimating A Time Synchronization Position
    Publication number: 20180287778
    Abstract: A receiving node 202 and a method therein for estimating a time synchronization position m0 of a signal received from a transmitting node 204. The receiving node r1w receives a first signal ? from the transmitting node, wherein the first signal comprises a first training signal t1n. The first training signal is known to the receiving and transmitting nodes. The receiving node performs a non-linear transformation of the first signal r1w resulting in a first non-linearly transformed signal r?,r?, and a non-linear transformation of the first training signal resulting in a second non-linearly transformed signal t?,t?. Further, the receiving node performs a cross-correlation of the first non-linearly transformed signal and the second non-linearly transformed signal. The receiving node estimates the time synchronization position of the first signal based on the cross-correlation.
    Type: Application
    Filed: October 15, 2015
    Publication date: October 4, 2018
    Inventors: Dennis Sundman, Miguel Lopez, Nafiseh Shariati