Patents by Inventor Sven Hellsten

Sven Hellsten 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).

  • Random Access Handling of a UE
    Publication number: 20260032613
    Abstract: There is provided mechanisms for random access handling of a UE. A method is performed by a network node. The method comprises receiving, from the UE during a first RAO, a first RA preamble, whilst refraining from responding to the first RA preamble. The method comprises transmitting, towards the UE and without the network node first having received any retransmitted RA preamble from the UE, one RAR for each of N possible RA preambles, where each RAR comprises a TA command corresponding to a TA value estimated for the first RA preamble. The method comprises receiving, from the UE during a further RAO, a retransmitted RA preamble. The method comprises determining whether the TA value for the retransmitted RA preamble matches the TA value for the first RA preamble or not.
    Type: Application
    Filed: September 29, 2025
    Publication date: January 29, 2026
    Inventors: Olof Liberg, Anders Westergren, Christian Skärby, Fredrik Huss, Sven Hellsten, Tomas Svadling
  • Random access handling of a UE
    Patent number: 12432678
    Abstract: There is provided mechanisms for random access handling of a UE. A method is performed by a network node. The method comprises receiving, from the UE during a first RAO, a first RA preamble, whilst refraining from responding to the first RA preamble. The method comprises transmitting, towards the UE and without the network node first having received any retransmitted RA preamble from the UE, one RAR for each of N possible RA preambles, where each RAR comprises a TA command corresponding to a TA value estimated for the first RA preamble. The method comprises receiving, from the UE during a further RAO, a retransmitted RA preamble. The method comprises determining whether the TA value for the retransmitted RA preamble matches the TA value for the first RA preamble or not.
    Type: Grant
    Filed: December 18, 2020
    Date of Patent: September 30, 2025
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Olof Liberg, Anders Westergren, Christian Skärby, Fredrik Huss, Sven Hellsten, Tomas Svadling
  • Random Access Handling of a UE
    Publication number: 20230100364
    Abstract: There is provided mechanisms for random access handling of a UE. A method is performed by a network node. The method comprises receiving, from the UE during a first RAO, a first RA preamble, whilst refraining from responding to the first RA preamble. The method comprises transmitting, towards the UE and without the network node first having received any retransmitted RA preamble from the UE, one RAR for each of N possible RA preambles, where each RAR comprises a TA command corresponding to a TA value estimated for the first RA preamble. The method comprises receiving, from the UE during a further RAO, a retransmitted RA preamble. The method comprises determining whether the TA value for the retransmitted RA preamble matches the TA value for the first RA preamble or not.
    Type: Application
    Filed: December 18, 2020
    Publication date: March 30, 2023
    Inventors: Olof Liberg, Anders Westergren, Christian Skärby, Fredrik Huss, Sven Hellsten, Tomas Svadling