Patents by Inventor Stefan Tjarnlund

Stefan Tjarnlund 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).

  • Dynamic MU-MIMO layer limit control
    Patent number: 11990957
    Abstract: To perform wireless communication scheduling, a network node (700) calculates a corresponding layer limit for each of a plurality of scheduling intervals of a cell (20) served to a plurality of user equipment via multi-user multiple-input multiple-output (MU-MIMO). The network node (700) schedules time-frequency resource utilization such that, for each of the scheduling intervals, no time-frequency resource is scheduled for use by more of the UEs (200) than the layer limit corresponding to the scheduling interval.
    Type: Grant
    Filed: June 26, 2019
    Date of Patent: May 21, 2024
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Harish Venkatraman Bhat, Ahmedul Quadir, Stefan Tjärnlund, Mats Johansson
  • Dynamic MU-MIMO Layer Limit Control
    Publication number: 20220399919
    Abstract: To perform wireless communication scheduling, a network node (700) calculates a corresponding layer limit for each of a plurality of scheduling intervals of a cell (20) served to a plurality of user equipment via multi-user multiple-input multiple-output (MU-MIMO). The network node (700) schedules time-frequency resource utilization such that, for each of the scheduling intervals, no time-frequency resource is scheduled for use by more of the UEs (200) than the layer limit corresponding to the scheduling interval.
    Type: Application
    Filed: June 26, 2019
    Publication date: December 15, 2022
    Inventors: Harish Venkatraman Bhat, Ahmedul Quadir, Stefan Tjärnlund, Mats Johansson
  • Parallel scheduling in a cellular communications system
    Patent number: 9363802
    Abstract: Mechanisms for scheduling uplink transmissions for a plurality of user equipment devices, UEs, that are serviced by a network node having a wireless coverage area comprising a plurality of sectors is disclosed. A plurality of schedulers is initiated in parallel, each scheduler corresponding to a different sector of the plurality of sectors. Each scheduler schedules in parallel at least some UEs that are associated with the corresponding different sector.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: June 7, 2016
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Ying Sun, Patrick Sheehy, Stefan Tjärnlund
  • PARALLEL SCHEDULING IN A CELLULAR COMMUNICATIONS SYSTEM
    Publication number: 20150110019
    Abstract: Mechanisms for scheduling uplink transmissions for a plurality of user equipment devices, UEs, that are serviced by a network node having a wireless coverage area comprising a plurality of sectors is disclosed. A plurality of schedulers is initiated in parallel, each scheduler corresponding to a different sector of the plurality of sectors. Each scheduler schedules in parallel at least some UEs that are associated with the corresponding different sector.
    Type: Application
    Filed: March 15, 2012
    Publication date: April 23, 2015
    Applicant: TELEFONAKTIEBOLAGET L M Ericsson (publ)
    Inventors: Ying Sun, Patrick Sheehy, Stefan Tjarnlund