公开(公告)号：US12219414B2

公开(公告)日：2025-02-04

申请号：US17765370

申请日：2020-10-02

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Malik Wahaj Arshad ,  Stefan Engström ,  Parisa Pakniat ,  Ali Parichehrehteroujeni ,  Pradeepa Ramachandra ,  Kristina Zetterberg ,  Tahmineh Torabian Esfahani

IPC: H04W36/00 ,  H04W76/20

Abstract: A user equipment (“UE”) can receive a request for UE mobility history information from a network node. The UE can generate a UE mobility history report. The UE mobility history report can include at least one of transitions between an inactive state and a connected state for each cell included in the UE mobility history report or a carrier frequency of each cell included in the UE mobility history report. The UE can transmit the UE mobility history report to the network node.

公开(公告)号：US12207076B2

公开(公告)日：2025-01-21

申请号：US17772069

申请日：2020-10-08

Applicant: Telefonaktiebolaget LM Ericsson (PUBL)

Inventor： Pradeepa Ramachandra ,  Ali Parichehrehteroujeni ,  Kristina Zetterberg

IPC: H04W36/30 ,  H04W36/00 ,  H04W24/10

Abstract: Embodiments include methods, performed by a user equipment (UE), for reporting radio link failure (RLF) in a cell of a wireless network. Such methods include performing measurements of a plurality of cells, which can include a serving cell and multiple neighbor cells. The measurements for each cell are based on one or more types of reference signals (RS) transmitted in the particular cell and include one or more measurement quantities. Such methods include determining that an RLF occurred in the serving cell and sorting the neighbor cell measurements into one or more measurement lists based on one or more sorting criteria, which can be related to the RS types on which the measurements for the respective neighbor cells are based and/or the measurement quantities available for the respective neighbor cells. Such methods include transmitting, to a network node, an RLF report including the one or more measurement lists.

公开(公告)号：US20240406801A1

公开(公告)日：2024-12-05

申请号：US18700243

申请日：2022-10-28

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Pradeepa Ramachandra ,  Mattias Bergström

IPC: H04W28/08 ,  H04W24/10

Abstract: Methods and systems are provided to enable efficient inter-frequency load balancing or dual connectivity setup or multi-connectivity setup or carrier aggregation setup. In an embodiment, a user equipment device (UE) can receive a measurement configuration from a network node, the measurement configuration comprising information that indicates two or more frequencies for which measurements are to be performed by the UE. In an embodiment, the UE can perform measurements in accordance with the measurement configuration to provide performed measurements. In an embodiment, the UE can transmit a measurement report to the network node, the measurement reporting comprising the performed measurements and information that indicates at least one of the two or more frequencies on which the UE has already performed measurements at a time at which the measurement report was generated.

公开(公告)号：US20240406760A1

公开(公告)日：2024-12-05

申请号：US18698926

申请日：2022-10-07

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Pradeepa Ramachandra ,  Muhammad Ali Kazmi ,  Helka-Liina Määttänen ,  Marco Belleschi ,  Ming Li

IPC: H04W24/02 ,  H04W24/10 ,  H04W84/06

Abstract: A wireless communication device (12) collects minimization of drive test, MDT, measurements. The wireless communication device (12) transmits an MDT measurement report (14) that reports the MDT measurements. The content (14C) of the MDT measurement report (14) depends on whether or not the MDT measurements were collected when the wireless communication device (12) was being served by, had been served by, or was near a cell (20A) of a non-terrestrial network, NTN (10A).

公开(公告)号：US20240340724A1

公开(公告)日：2024-10-10

申请号：US18692473

申请日：2022-09-15

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Pradeepa Ramachandra ,  Antonino Orsino ,  Marco Belleschi

IPC: H04W36/00 ,  H04W24/04 ,  H04W74/0808

CPC classification number: H04W36/0079 ,  H04W24/04 ,  H04W74/0808

Abstract: A method in a wireless device for reporting handover failure, HOF, in a wireless network comprises the steps of deter mining (210) that a HOF has occurred in connection with a reconfiguration of at least one connection of the wireless device to the wire less network and sending (220), to the wireless network, one or more messages reporting the HOF, the one or more messages comprising one or both of an indication of at least one listen-before-talk, LBT, failure experienced by the wireless device in connection with the reconfiguration or an indication of a random access problem experienced by the wireless device in connection with the reconfiguration.

公开(公告)号：US12063530B2

公开(公告)日：2024-08-13

申请号：US17049096

申请日：2019-05-07

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Reza Moosavi ,  Icaro L. J. Da Silva ,  Fredrik Gunnarsson ,  Pradeepa Ramachandra

IPC: H04W24/08 ,  H04W24/10 ,  H04W36/00

CPC classification number: H04W24/08 ,  H04W24/10 ,  H04W36/0058 ,  H04W36/0061 ,  H04W36/0088

Abstract: According to certain embodiments, a method in a wireless device for measurement reporting comprises: receiving an instruction to perform measurement reporting for a neighbor cell: determining, based at least on a radio access technology (RAT) of the neighbor cell and a frequency range of the neighbor cell, a measurement reporting timer value for performing the measurement reporting; and measuring a radio signal of the neighbor cell during the time specified by the determined measurement reporting timer value.

公开(公告)号：US20240251440A1

公开(公告)日：2024-07-25

申请号：US18263169

申请日：2022-01-13

Applicant: Telefonaktiebolaget LM Ericsson (PUBL)

Inventor： Angelo Centonza ,  Luca Lunardi ,  Reem Karaki ,  Johan Rune ,  Marco Belleschi ,  Pradeepa Ramachandra

IPC: H04W74/0808 ,  H04W16/14

CPC classification number: H04W74/0808 ,  H04W16/14

Abstract: In certain embodiments, a method performed by a first radio access network (RAN) node comprises receiving, from a second RAN node, load metrics associated with a shared channel and listen-before-talk (LBT) configuration information. The LBT configuration information indicates how a determination is made whether the shared channel is occupied or available for communication between the second RAN node and a wireless device. The method further comprises performing one or more operations of the first RAN node based at least in part on the load metrics and the LBT configuration information received from the second RAN node.

公开(公告)号：US20240236800A9

公开(公告)日：2024-07-11

申请号：US18546282

申请日：2022-03-10

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Ali Parichehrehteroujeni ,  Pradeepa Ramachandra ,  Marco Belleschi

IPC: H04W36/30 ,  H04W36/00 ,  H04W76/19

CPC classification number: H04W36/305 ,  H04W36/0079 ,  H04W76/19

Abstract: Methods and apparatuses for classifying mobility failure. A method performed by a wireless device comprises detecting a failure event in a MCG, wherein the failure event is at least one of a RLF and a HOF. The method further comprises logging MCG Failure Information associated with the failure event subsequent to detection of the failure event, wherein the MCG Failure Information comprises an elapsed time between time of reception of a last RRC reconfiguration message associated with the MCG and time of MCG connection failure. The RRC reconfiguration message including reconfiguration with sync.

公开(公告)号：US12035190B2

公开(公告)日：2024-07-09

申请号：US18133768

申请日：2023-04-12

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： Pradeepa Ramachandra ,  Wei Shen ,  Johan Rune ,  Henrik Sahlin

IPC: H04W36/00 ,  H04W36/08 ,  H04W48/16 ,  H04W56/00 ,  H04W76/27

CPC classification number: H04W36/0088 ,  H04W36/0058 ,  H04W36/08 ,  H04W48/16 ,  H04W56/001 ,  H04W76/27

Abstract: A radio network node, such as a gNodeB (gNB), a User Equipment (UE) and a method, for configuring the UE for camping on a cell in a radio network for Synchronization Signal (SS) Blocks based cell re-selection measurements for RRC_IDLE and RRC_INACTIVE states. The method includes providing information to the UE, including configuration parameters for a measurement window, the configuration parameters defining a window periodicity, offset and duration, for configuring the UE for the SS Blocks based cell re-selection measurements for RRC_IDLE and RRC_INACTIVE states. Radio Resource Control (RRC) signaling is used to convey the information to the UE prior to or in conjunction with switching the UE from RRC_CONNECTED state to RRC_INACTIVE or RRC_IDLE state, a RRCConnectionRelease message is used to convey the information to the UE and the information is also provided to the UE in system information (SI).

公开(公告)号：US12035180B2

公开(公告)日：2024-07-09

申请号：US17268713

申请日：2019-08-15

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Sakib Bin Redhwan ,  Nicklas Johansson ,  Pradeepa Ramachandra ,  Reza Moosavi ,  Sofia Ek

IPC: H04W36/00 ,  H04W36/08 ,  H04W36/36 ,  H04W74/0833 ,  H04W76/27

CPC classification number: H04W36/0058 ,  H04W36/00837 ,  H04W36/08 ,  H04W36/362 ,  H04W74/0833 ,  H04W76/27

Abstract: A first network node transmits, to a wireless device, a first indication. The first indication indicates to select, out of a plurality of target links simultaneously fulfilling a respective condition to switch from a source link to a target link, a first target link to switch from the source link to the selected first target link. The selecting is based on at least one of: a Reference Signal Received Power (RSRP) value, a Reference Signal Received Quality (RSRQ) value, a Signal to Interference and noise ratio (SINR) value, a priority, Random Access Channel (RACH) resources, a cell in which latest measurements were made, or a frequency, of the respective target links in the plurality of target links. The first network node then handles the link switch from the source link to the target link, based on the transmitted first indication.