公开(公告)号：US12144032B2

公开(公告)日：2024-11-12

申请号：US17967967

申请日：2022-10-18

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Jingya Li ,  Johan Axnäs ,  Asbjörn Grövlen ,  Naga Vishnu Kanth Irukulapati ,  Xingqin Lin ,  Hongxia Zhao

IPC: H04W4/00 ,  G01V1/16 ,  G01V1/38 ,  H04W56/00 ,  H04W72/0446 ,  H04W72/23 ,  H04W74/00 ,  H04W74/0833

Abstract: A method may be provided to operate a wireless terminal in communication with a network node. The method may include receiving a Physical Downlink Control Channel, PDCCH, order from the network node. The PDCCH order may include an identification for a Random Access CHannel RACH occasion to be used for a RACH message 1 preamble transmission. Moreover, the identification may include a first index that indicates a set of RACH occasions and a second index that indicates the RACH occasion associated with the set. The method may also include transmitting a Message 1 preamble to the network node using the RACH occasion responsive to the PDCCH order.

公开(公告)号：US12096478B2

公开(公告)日：2024-09-17

申请号：US17426479

申请日：2020-02-11

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Jan Christoffersson ,  Johan Axnäs ,  Robert Mark Harrison

IPC: H04W74/0833 ,  H04W74/00 ,  H04W72/0446

CPC classification number: H04W74/0833 ,  H04W74/008 ,  H04W72/0446

Abstract: A method is performed by a wireless device for accessing a network. The method comprises performing a two-step random access procedure. This comprises transmitting a preamble in at least one Physical Random Access Channel, PRACH, occasion, and transmitting a Physical Uplink Shared Channel, PUSCH. A position of the at least one PRACH occasion for transmitting the preamble is determined to ensure that a gap between transmitting the preamble and transmitting the PUSCH is less than a predetermined duration.

公开(公告)号：US11917687B2

公开(公告)日：2024-02-27

申请号：US16764174

申请日：2018-11-09

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Henrik Sahlin ,  Claes Tidestav ,  Andres Reial ,  Icaro L. J. Da Silva ,  Johan Axnäs

IPC: H04W74/08 ,  H04W16/28 ,  H04W72/04

CPC classification number: H04W74/0833 ,  H04W16/28 ,  H04W72/04

Abstract: According to certain embodiments, a method performed by a wireless device comprises initiating a random access procedure in which the wireless device sends a Physical Random Access Channel, PRACH, preamble to a network node and applying a receiver configuration for receiving an access response. The receiver configuration is determined based at least in part on whether a many-to-one association exists between (a) a downlink signal that can be used for beam selection prior to initiating the random access procedure, and (b) PRACH preamble indices.

公开(公告)号：US20240040524A1

公开(公告)日：2024-02-01

申请号：US18482394

申请日：2023-10-06

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Johan Axnäs ,  Kumar Balachandran ,  Icaro Leonardo Da Silva ,  Dennis Hui ,  Andres Reial ,  Johan Rune ,  Henrik Sahlin

IPC: H04W56/00 ,  H04W72/0446

CPC classification number: H04W56/0015 ,  H04W72/0446

Abstract: The present disclosure relates to transmitting synchronization signals and in particular to so called beam sweep. In particular the disclosure relates to methods for providing synchronization using synchronization sequences that are transmitted at different points in time. The disclosure also relates to corresponding devices and computer programs. A method in a network node, for transmitting synchronization sequences of a synchronization signal to one or more receiving wireless devices, comprises determining multiple synchronization sequences, such that each synchronization sequence comprises a respective timing indication, whereby each synchronization sequence enables determination of a time of an event in a receiving wireless device and transmitting the synchronization sequences to the one or more wireless devices, at different points in time.

公开(公告)号：US20230403702A1

公开(公告)日：2023-12-14

申请号：US18248558

申请日：2021-10-14

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Ling Su ,  Zhipeng Lin ,  Johan Axnäs ,  Robert Mark Harrison ,  Ritesh Shreevastav

IPC: H04W72/1268 ,  H04W72/542

CPC classification number: H04W72/1268 ,  H04W72/542

Abstract: The present disclosure is related to the field of telecommunication, and in particular, to enhancement for uplink data transmission. A method at a terminal device comprises: receiving, from a network node, a first message indicating at least one parameter for a Physical Uplink Shared Channel (PUSCH) transmission; and transmitting, to the network node, the PUSCH transmission at least partially based on the first message. A method at a network node comprises: transmitting, to a terminal device, a first message indicating at least one parameter for a Physical Uplink Shared Channel (PUSCH) transmission; and receiving, from the terminal device, the PUSCH transmission at least partially based on the first message.

公开(公告)号：US11812416B2

公开(公告)日：2023-11-07

申请号：US16484044

申请日：2018-02-06

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Johan Axnäs ,  Henrik Sahlin ,  Andres Reial ,  Naga Vishnu Kanth Irukulapati

IPC: H04W72/04 ,  H04W72/044 ,  H04W56/00 ,  H04W74/08

CPC classification number: H04W72/044 ,  H04W56/0055 ,  H04W74/0891

Abstract: According to embodiments described herein, a long delay-detector improves delay estimation performance for PRACH for many practical deployment scenarios. This, for example, reduces the risk that the timing advance of the UE is set incorrectly and hence reduces the risk that subsequent communication fails and that the UE spreads unnecessary interference to other communication in the system.

公开(公告)号：US20230300891A1

公开(公告)日：2023-09-21

申请号：US18014294

申请日：2021-07-23

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Ling Su ,  Johan Axnäs ,  Robert Mark Harrison ,  Zhipeng Lin ,  David Astely

IPC: H04W74/08 ,  H04L5/00 ,  H04W74/00

CPC classification number: H04W74/0833 ,  H04L5/0048 ,  H04W74/002

Abstract: Embodiments of the present disclosure provide methods and apparatuses for random access procedure. A method performed by a terminal device comprises transmitting multiple preambles on different transmission chains of the terminal device to a network node. The multiple preambles are associated with a same or different synchronization signal and physical broadcast channel block (SSB).

公开(公告)号：US20230109947A1

公开(公告)日：2023-04-13

申请号：US17835006

申请日：2022-06-08

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Stefan Parkvall ,  Janne Peisa ,  Gunnar Mildh ,  Robert Baldemair ,  Stefan Wager ,  Jonas Kronander ,  Karl Werner ,  Richard Abrahamsson ,  Ismet Aktas ,  Peter Alriksson ,  Junaid Ansari ,  Shehzad Ali Ashraf ,  Henrik Asplund ,  Fredrik Athley ,  Håkan Axelsson ,  Joakim Axmon ,  Johan Axnäs ,  Kumar Balachandran ,  Gunnar Bark ,  Jan-Erik Berg ,  Andreas Bergström ,  Håkan Björkegren ,  Nadia Brahmi ,  Cagatay Capar ,  Anders Carlsson ,  Andreas Cedergren ,  Mikael Coldrey ,  Icaro L. J. da Silva ,  Erik Dahlman ,  Ali El Essaili ,  Ulrika Engström ,  Mårten Ericson ,  Erik Eriksson ,  Mikael Fallgren ,  Rui Fan ,  Gabor Fodor ,  Pål Frenger ,  Jonas Fridén ,  Jonas Fröberg Olsson ,  Anders Furuskär ,  Johan Furuskog ,  Virgile Garcia ,  Ather Gattami ,  Fredrik Gunnarsson ,  Ulf Gustavsson ,  Bo Hagerman ,  Fredrik Harrysson ,  Ning He ,  Martin Hessler ,  Kimmo Hiltunen ,  Songnam Hong ,  Dennis Hui ,  Jörg Huschke ,  Tim Irnich ,  Sven Jacobsson ,  Niklas Jaldén ,  Simon Järmyr ,  Zhiyuan Jiang ,  Martin Johansson ,  Niklas Johansson ,  Du Ho Kang ,  Eleftherios Karipidis ,  Patrik Karlsson ,  Ali S. Khayrallah ,  Caner Kilinc ,  Göran N. Klang ,  Sara Landström ,  Christina Larsson ,  Gen Li ,  Bo Lincoln ,  Lars Lindbom ,  Robert Lindgren ,  Bengt Lindoff ,  Fredrik Lindqvist ,  Jinhua Liu ,  Thorsten Lohmar ,  Qianxi Lu ,  Lars Manholm ,  Ivana Maric ,  Jonas Medbo ,  Qingyu Miao ,  Reza Moosavi ,  Walter Müller ,  Elena Myhre ,  Johan Nilsson ,  Karl Norrman ,  Bengt-Erik Olsson ,  Torgny Palenius ,  Sven Petersson ,  Jose Luis Pradas ,  Mikael Prytz ,  Olav Queseth ,  Pradeepa Ramachandra ,  Edgar Ramos ,  Andres Reial ,  Thomas Rimhagen ,  Emil Ringh ,  Patrik Rugeland ,  Johan Rune ,  Joachim Sachs ,  Henrik Sahlin ,  Vidit Saxena ,  Nima Seifi ,  Yngve Selén ,  Eliane Semaan ,  Sachin Sharma ,  Cong Shi ,  Johan Sköld ,  Magnus Stattin ,  Anders Stjernman ,  Dennis Sundman ,  Lars Sundström ,  Miurel Isabel Tercero Vargas ,  Claes Tidestav ,  Sibel Tombaz ,  Johan Torsner ,  Hugo Tullberg ,  Jari Vikberg ,  Peter von Wrycza ,  Thomas Walldeen ,  Anders Wallén ,  Pontus Wallentin ,  Hai Wang ,  Ke Wang Helmersson ,  Jianfeng Wang ,  Yi-Pin Eric Wang ,  Niclas Wiberg ,  Emma Wittenmark ,  Osman Nuri Can Yilmaz ,  Ali Zaidi ,  Zhan Zhang ,  Zhang Zhang ,  Yanli Zheng

IPC: H04L41/0233 ,  H04W52/02 ,  H04B7/06 ,  H04J11/00 ,  H04L41/0816 ,  H04W24/10 ,  H04W16/28 ,  H04W28/02

Abstract: Methods and apparatus in a fifth-generation wireless communications network, including an example method, in a wireless device, that includes determining a reporting quality threshold for a parameter related to channel state information (CSI); performing a measurement for each of a plurality of beams from a first predetermined set of beams for evaluation; evaluating the measurement for each of the plurality of beams against the reporting quality threshold; discontinuing the performing and evaluating of measurements in response to determining that the reporting quality threshold is met for one of the beams, such that one or more beams in the first predetermined set of beams are not measured and evaluated; and reporting, to the wireless communications network, CSI for the one of the beams.

公开(公告)号：US20220248459A1

公开(公告)日：2022-08-04

申请号：US17726213

申请日：2022-04-21

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： Johan Axnäs ,  Henrik Sahlin

IPC: H04W74/08 ,  H04W72/04 ,  H04W74/00

Abstract: According to some embodiments, a method for use in a wireless communication network includes a wireless device receiving, from a network, a configuration corresponding to a Physical Random Access Channel (PRACH). The wireless device receives, from the network via Radio Resource Control (RRC) signaling, a bitmap that provides an indication of time locations corresponding to synchronization signal (SS) blocks. The wireless device determines, based on the configuration and the bitmap, a time slot that does not overlap with the time locations to perform a PRACH transmission during the determined time slot.

公开(公告)号：US20210345411A1

公开(公告)日：2021-11-04

申请号：US17283420

申请日：2018-10-08

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Jingya Li ,  Johan Axnäs ,  Henrik Sahlin ,  Sebastian Faxér ,  Naga Vishnu Kanth Irukulapati ,  Petter Ersbo

IPC: H04W74/08 ,  H04W72/04

Abstract: There is disclosed a method of operating a network node (100) in a radio access network, the method comprising detecting Physical Random Access CHannel, PRACH, transmission from a user equipment (10), wherein the PRACH transmission covers a plurality of time intervals, wherein detecting comprises associating different weights to different time intervals. The disclosure also pertains to related devices and methods.