Patents by Inventor Jan Christoffersson

Jan Christoffersson 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).

  • Publication number: 20200329503
    Abstract: A method in a UE comprises: receiving a message from a network node comprising information about one or more sets of dedicated random access channel (RACH) resources, each set of dedicated RACH resources associated with a beam associated with a target cell; obtaining an estimate of beam quality for each beam associated with the sets of dedicated RACH resources; determining, based on the obtained estimate of beam quality, whether any beam associated with the one or more sets of dedicated RACH resources meets one or more criteria of a first set of criteria for performing random access; and performing random access based on whether any beam associated with the one or more sets of dedicated RACH resources meets the one or more criteria of the first set of criteria for performing random access.
    Type: Application
    Filed: September 28, 2018
    Publication date: October 15, 2020
    Inventors: Icaro L. J. DA SILVA, Henrik SAHLIN, Mats FOLKE, Janne PEISA, Jan CHRISTOFFERSSON
  • Patent number: 10798607
    Abstract: There is provided a method of operating a wireless communication device adapted for multi-connectivity to enable individual connections to at least two different network units. The method comprises receiving (S1) information indicating packets received by one of the network units from the wireless communication device over one of the connections, and removing (S2) redundant packets for another one of the connections corresponding to the indicated packets.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: October 6, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Hans Hannu, Jan Christoffersson, Mårten Ericson, Min Wang
  • Patent number: 10791577
    Abstract: Embodiments of the present disclosure provide methods, apparatuses and computer program products for random access in a wireless communication system. A method in a terminal device comprises receiving a random access configuration from a network device, the random access configuration including information for determining a set of candidate subframe numbers and a set of candidate system frame numbers for transmitting a random access preamble; transmitting the random access preamble in a subframe within a radio frame, the subframe being associated with a subframe number, and the radio frame being associated with a system frame number, wherein the subframe number is selected from the set of candidate subframe numbers, and/or, the system frame number is selected from the set of candidate system frame numbers t, based on a size of a Message 3 (Msg3) to be transmitted by the terminal device to the network device during the random access.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: September 29, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Jinhua Liu, Jan Christoffersson
  • Publication number: 20200275479
    Abstract: According to some embodiments, a method in a wireless device of performing random access comprises receiving a random access configuration. The random access configuration comprises one or more associations of a synchronization signal block (SSB), a preamble sequence, and physical random access channel (PRACH) configuration resources. The PRACH resources comprise time domain resources and frequency domain resources. The method further comprises receiving one or more SSBs; selecting one of the one or more received SSBs; and selecting a preamble sequence. The preamble sequence is associated with the selected SSB in the random access configuration. The method further comprises transmitting the selected preamble sequence on PRACH resources associated with the selected SSB in the random access configuration.
    Type: Application
    Filed: October 26, 2018
    Publication date: August 27, 2020
    Inventors: Janne PEISA, Jan CHRISTOFFERSSON, Asbjörn GRÖVLEN, Johan RUNE
  • Publication number: 20200259528
    Abstract: A coordinated multipoint, CoMP, controller (108) coordinates transmission from a CoMP cluster (102) to a wireless communication device (114). The CoMP controller (108) determines from among multiple different coordination hypotheses for how to coordinate transmissions from the CoMP cluster (102) to the wireless communication device (114), a coordination hypothesis to apply. The CoMP controller (108) applies the determined coordination hypothesis (122) to transmissions from the CoMP cluster (102) on channel state information, CSI, radio resources on which the wireless communication device (114) is to perform CSI measurements. Notably, though, the CoMP controller (108) defers applying the determined coordination hypothesis to transmissions from the CoMP cluster (102) on user data radio resources, until after the determined coordination hypothesis is applied to the transmissions on the CSI radio resources.
    Type: Application
    Filed: December 8, 2015
    Publication date: August 13, 2020
    Inventors: Zhang Zhang, Svante Bergman, Jan Christoffersson
  • Publication number: 20200221499
    Abstract: Embodiments described herein provide methods and apparatus for performing a random access procedure to access a wireless communications network. A method in a wireless device comprises responsive to transmitting a first random access preamble to a base station using first random access resources in an uplink, UL, bandwidth part, BWP, of a carrier: selecting, based on an association, a first downlink, DL, BWP of the carrier, wherein the association maps a plurality of DL BWPs of the carrier to different values of a parameter related to physical random access configurations and/or to different UL BWPs of the carrier; and monitoring the first DL BWP in order to receive a random access response from the base station.
    Type: Application
    Filed: February 11, 2019
    Publication date: July 9, 2020
    Inventors: Björn Hofström, Jan Christoffersson, Min Wang
  • Patent number: 10673574
    Abstract: The embodiments herein relates to a network node, a UE, and methods thereof for reliable group transmissions. The method in the UE comprises receiving, from a network node, at least one signaling comprising HARQ parameters including a diversity distance between a HARQ transmission and a subsequent HARQ re-transmission and information on a number of retransmissions; receiving at least one transmission comprising at least one packet from the network node; decoding the received at least one packet; if the decoding of the at least one packet is successful, encoding the at least one packet and retransmitting, to at least one other UE of the group, the at least one transmission including the at least one encoded packet, wherein retransmitting of the at least one packet is performed simultaneously as retransmission of the at least one transmission from the network node to the at least one other UE of the group.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: June 2, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Jan Christoffersson, Mårten Ericson, Min Wang
  • Publication number: 20200169356
    Abstract: A method is provided in a user equipment for retransmitting a packet data unit, PDU, that has previously been transmitted in an uplink to a receiver, the previously transmitted PDU comprising one or more service data units, SDUs. The method comprises receiving an uplink grant for retransmission, wherein the uplink grant for retransmission comprises a time transmission interval, TTI, duration associated therewith. The method comprises determining whether a SDU of the one or more SDUs of the previously transmitted PDU comprises a TTI duration which is not suited to the TTI duration associated with the uplink grant for retransmission, and, if so repackaging the PDU for retransmission.
    Type: Application
    Filed: December 18, 2017
    Publication date: May 28, 2020
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Min WANG, Jan CHRISTOFFERSSON, Mårten ERICSON
  • Patent number: 10660118
    Abstract: Methods and apparatus for improving the implementation or Logical Channel Prioritization (LCP) in advanced wireless communication networks are presented. For instance, in an example method (200) of the present disclosure, a network node (106) (e.g. base station, eNB, etc.) can determine to alter LCP order (10) utilized by a user equipment (UE) (102) to an altered LCP order (12) and can indicate the altered LCP (12) order to the UE (102). Furthermore, in an example method (210) performed by UE (102) in a wireless communication system (100), UE (102) can receive a message (116) indicating an altered LCP order (12) from a network node (106), and in response, can alter an LCP order (10) utilized by the UE (102) to the altered LCP order (12) indicated by the message (116). Further embodiments include corresponding apparatus, computer programs, and computer program products.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: May 19, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Min Wang, Jan Christoffersson, Mats Folke
  • Publication number: 20200137798
    Abstract: A method performed by a wireless device (130) is described herein. The wireless device (130) operates in a wireless communications network (100). The wireless device (130) provides (602) a message to be sent to a network node (110) operating in the wireless communications network (100). The message is a first scheduled message to be sent to the network node (110) in a random access procedure. The message comprises a first indicator (707) of a type of the message. The type of message has: a) a fixed size SDU (702), and b) a one byte header (704) comprising the first indicator (707) and lacking a second indicator (713) of a length of a payload. The wireless device (130) also initiates sending (603) the provided message to the network node (110). Also described is a method performed by the network node (110) receiving (1307) and initiating processing (1302) the message, based on the first indicator (707).
    Type: Application
    Filed: December 21, 2018
    Publication date: April 30, 2020
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Gunnar BERGQUIST, Jan CHRISTOFFERSSON, Mats FOLKE
  • Patent number: 10638386
    Abstract: There is provided a method of operating at least one network unit in a wireless communication system, wherein the wireless communication system comprises a first network unit and a second network unit that are both connected to a third network unit using a first connection, between the first network unit and the third network unit, and using a second connection, between the second network unit and the third network unit, wherein packets comprising the same information are transmitted over both the first connection and the second connection.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: April 28, 2020
    Assignee: TELEFONATIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Min Wang, Jan Christoffersson, Mårten Ericson, Hans Hannu
  • Publication number: 20200120709
    Abstract: A method performed by a wireless device (120) for transmitting a Random Access, RA, message to a radio network node (110). The wireless device and the radio network node operate in a wireless communications network (100). The wireless device determines a preamble from a group of preambles associated with an RA message size larger than the threshold value. This is done when the wireless device has a message to transmit that is larger than a threshold value. The wireless device transmits the determined preamble to the radio network node. Further, the wireless device receives, from the radio network node, an indication indicating that repetitions of transmission of an RA message are to be applied. Furthermore, the wireless device transmits, to the radio network node, the message in the RA message in accordance with the indication.
    Type: Application
    Filed: April 15, 2019
    Publication date: April 16, 2020
    Inventors: Gunnar Bergquist, Jan Christoffersson, Mats Folke, Riikka Susitaival, Min Wang
  • Patent number: 10623988
    Abstract: Disclosed are methods, devices and computer programs that enables a controlled activation and/or deactivation of multiplication/duplication transmissions where packets transmitted to a wireless device from a network node is multiplied/duplicated and transmitted from several network nodes to the wireless device. The methods, devices and computer programs are based on a quality indication that represents for the quality of the connections between a wireless device and different network units. Based on a quality indication obtained from the wireless device the network node(s) may initiate or terminate a multiplication/duplication transmission mode where packets are transmitted to the wireless device from several network nodes.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: April 14, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Min Wang, Jan Christoffersson, Mårten Ericson, Hans Hannu
  • Publication number: 20200084661
    Abstract: There is provided a method of operating a wireless communication device adapted for multi-connectivity to enable individual connections to at least two different network units. The method comprises receiving (S1) information indicating packets received by one of the network units from the wireless communication device over one of the connections, and removing (S2) redundant packets for another one of the connections corresponding to the indicated packets.
    Type: Application
    Filed: July 5, 2017
    Publication date: March 12, 2020
    Inventors: Hans Hannu, Jan Christoffersson, Mårten Ericson, Min Wang
  • Publication number: 20200077444
    Abstract: The present disclosure provides a method in a network device. The method comprises: receiving a random access request message from a terminal device; and transmitting to the terminal device a Random Access Response (RAR) message in response to the random access request message. The RAR message has a format dependent on a type of the random access request message.
    Type: Application
    Filed: June 8, 2018
    Publication date: March 5, 2020
    Inventors: Jinhua Liu, Jan Christoffersson, Mats Folke
  • Publication number: 20200077448
    Abstract: The present disclosure provides a method a user equipment (UE) to perform random access to a radio network comprising an uplink physical resource configuration (UL) and supplementary physical resource configuration (SUL). A random access request containing a preamble may be transmitted from the UE to the radio network on a physical random access channel (PRACH) of one of the uplink physical resource configuration or the supplementary uplink physical resource configuration. A random access response for the UE indicating the physical resource configuration on whose PRACH the random access request was sent may be received at the UE, wherein the indication is made by a Random Access Radio Network Temporary Identifier (RA-RNTI) used to identify the random access response. The radio network may be accessed by the UE based on information in the random access response.
    Type: Application
    Filed: November 6, 2019
    Publication date: March 5, 2020
    Inventors: Jan CHRISTOFFERSSON, Jinhua LIU, Min WANG
  • Patent number: 10574327
    Abstract: A wireless device and a method performed thereby for communicating with a first network node and a second network node by means of a respective cell thereof are proved. Also a first and second network node and respective methods performed thereby for communicating with a wireless device are provided. The wireless device is in soft handover with at least two cells in its active set where downlink is best from one cell and uplink is best towards another cell, wherein the cell providing the best downlink belongs to the first network node and the cell providing the best uplink belongs to the second network node.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: February 25, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Min Wang, Erik Larsson, Mårten Ericson, Jan Christoffersson
  • Publication number: 20200059968
    Abstract: A method performed by a communications device 208 for transmitting a message in response to a Random Access Response (RAR) message received from a Radio Network Node (RNN) 206. The RAR message comprises multiple grants. When the message to be transmitted requires resources provided by any one grant out of the multiple grants, the communications device selects one grant out of the multiple grants. When the message to be transmitted requires resources provided by two or more grants out of the multiple grants, the communications device selects the two or more of the grants out of the multiple grants. When the message to be transmitted requires more resources than provided by the multiple grants, the communications device selects one grant out of the multiple grants. The communications device transmits, to the RNN, the message using resources provided by the selected at least one grant out of the multiple grants.
    Type: Application
    Filed: March 15, 2018
    Publication date: February 20, 2020
    Inventors: Jan Christoffersson, Mats Folke, Min Wang
  • Publication number: 20200052767
    Abstract: Embodiments herein relate to a method performed by a user equipment for handling communication in a wireless communication network. The user equipment receives a RAR comprising an indicator indicating a load of a beam from the radio network node. The user equipment further transmits a preamble in a selected beam selected based on the indicator.
    Type: Application
    Filed: December 23, 2018
    Publication date: February 13, 2020
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Min WANG, Jan CHRISTOFFERSSON, Jinhua LIU
  • Publication number: 20200037199
    Abstract: The invention refers to a method for a communication device in a radio network, which comprises a step of performing a first transmitting, in a first time slot of a first duration, comprising transmitting a Buffer Status Report, BSR, for a plurality of logical channels, and a step of performing a second transmitting, in a second time slot of a second duration, comprising transmitting a Scheduling Request, SR, for at least a first part of the plurality of logical channels; the invention further refers to corresponding communication devices, to a computer-readable storage, to a computer program and to a carrier.
    Type: Application
    Filed: May 4, 2018
    Publication date: January 30, 2020
    Inventors: Min Wang, Jan Christoffersson, Jinhua Liu