Telefonaktiebolaget Lm Ericsson (publ)

Other

Pontus Wallentin

Gunnar Mildh

Johan Rune

Jari Tapio Vikberg

Icaro L J Da Silva

Fredrik Gunnarsson

Qianxi Lu

Magnus Stattin

Niklas Johansson

Stefan Wager

Pradeepa Ramachandra

Patrik Rugeland

Bengt Lindoff

Erik A Eriksson

Qingyu Miao

Pål Frenger

Gabor Fodor

Janne Peisa

Niclas Wiberg

Stefan Parkvall

Martin Hessler

Jose Luis Pradas

Robert Baldemair

Jinhua Liu

Yi-Pin Eric Wang

Erik Bengt Dahlman

Andres Reial

Henrik Sahlin

Dennis Hui

Sven Oscar Petersson

Joakim Axmon

Karl Norrman

Johan Torsner

Fredrik Athley

Joachim Sachs

Kumar Balachandran

Ali S Khayrallah

Gen Li

Claes Tidestav

Thorsten Lohmar

Zhang Zhang

Bo Hagerman

Osman Nuri Can Yilmaz

Lars Lindbom

Torgny Palenius

Johan Furuskog

Jonas Fröberg Olsson

Jianfeng Wang

Hai Feng Wang

Peter Alriksson

Lars Sundström

Zhan Zhang

Andreas Bergström

Henrik Asplund

Martin Johansson

Karl Werner

Patrik Torgny Karlsson

Mikael Coldrey

Johan Axnäs

Mårten Ericson

Shehzad Ali Ashraf

Jonas Kronander

Reza Moosavi

Fredrik Lindqvist

Dennis Sundman

Ning He

Håkan Axelsson

Mikael Prytz

Yngve Selén

Andreas Cedergren

Nadia Brahmi

Niklas Jaldén

Rui Fan

Walter Müller

Anders Furuskär

Håkan Björkegren

Stefano Sorrentino

Mats Folke

Jens Bergqvist

András Rácz

Edgar Ramos

Oumer Teyeb

Angelo Centonza

Christofer Lindheimer

Oscar Ohlsson

Paul Schliwa-Bertling

Marco Belleschi

Ivo Sedlacek

Xinghua Song

Johan Nilsson

Bo Lincoln

Shaohua Li

Reiner Ludwig

Stefan Wänstedt

Anders Wallén

Eva Englund

Gert Jan Van Lieshout

Alexander Vesely

Zhenhua Zou

A method performed by a source access node for performing data forwarding at handover of a UE from a source cell to a target cell in a wireless communications network is provided. When a criterion for data forwarding is fulfilled, the source access node obtains a trigger for downlink data forwarding. When receiving the trigger, the source access node initiates downlink data forwarding to the UE via the target access node.

Access node, user equipment and methods in a wireless communications network

Methods and apparatus in a fifth-generation wireless communications, including an example method, in a wireless device, that includes receiving a downlink signal comprising an uplink access configuration index, using the uplink access configuration index to identify an uplink access configuration from among a predetermined plurality of uplink access configurations, and transmitting to the wireless communications network according to the identified uplink access configuration. The example method further includes, in the same wireless device, receiving, in a first subframe, a first Orthogonal Frequency-Division Multiplexing (OFDM) transmission formatted according to a first numerology and receiving, in a second subframe, a second OFDM transmission formatted according to a second numerology, the second numerology differing from the first numerology. Variants of this method, corresponding apparatuses, and corresponding network-side methods and apparatuses are also disclosed.

Network architecture, methods, and devices for a wireless communications network

Embodiments herein relate to for example a method performed by a radio network node for handling a communication of a user equipment, UE, in a wireless communication network. The radio network node transmits a handover command for handing over the UE, from a source cell to a target cell, wherein a security parameter for encrypting data communicated between the radio network node and the UE is retained during the handover. Furthermore, the radio network node maintains a sequence number status for reception and/or transmission of a signalling radio bearer of the UE during the handover from the source cell to the target cell, and/or at a fallback from the target cell to the source cell, when the UE triggers the fallback to the source cell.

Radio network node, user equipment (UE) and methods performed therein

The disclosure relates to a method in a wireless device for transmitting an uplink signalling message in a wireless communication network. The wireless device is connected to a first network element over at least a first and a second wireless link. The method comprises determining a transmission mode among alternative transmission modes for transmitting the uplink signalling message. The alternative transmission modes comprise: transmitting on the first wireless link; transmitting on the second wireless link; and transmitting on both the first and the second wireless links. The method also comprises transmitting the uplink signalling message according to the determined transmission mode. The disclosure also relates to a corresponding method performed in the network element, and to the corresponding apparatus.

Uplink signaling for dual connectivity

The present disclosure relates generally to communications, and more particularly to methods, computer program products, wireless devices and related nodes for Dual Active Protocol Stack (DAPS) handover reports. In one example embodiment, a method is performed by a wireless device. A DAPS handover is performed. Also, a type of handover report is determined. Furthermore, a handover report of the determined type is compiled and optionally stored. Still further, the handover report is transmitted to a network node operating as an access node.

Dual active protocol stack handover reports

Methods of operating a user equipment UE are discussed. An access category may be determined from a plurality of access categories and at least one access identity may be determined from a plurality of access identities to be applied for an access attempt. An establishment cause may be determined for the access attempt based on the access category determined from the plurality of access categories and based on the at least one access identity from the plurality of access identities. A connection request message for the access attempt may be transmitted to a wireless communication network, with the connection request message including the establishment cause determined based on the access category and based on the at least one access identity. Related devices are also discussed.

Methods of determining access categories and/or establishment causes and related devices

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.

The present disclosure relates to telecommunications. In one of its aspects, the disclosure concerns a method performed by a User Equipment for handling Packet Data Convergence Protocol (PDCP) Service Data Units (SDUs) when performing a Dual Active Protocol Stack (DAPS) handover of at least one radio bearer from a source access node to a target access node in a wireless communications network. The method comprises obtaining a trigger to perform the handover and establishing a radio connection for the at least one radio bearer with the target access node. An uplink transmission of PDCP SDUs is switched from the source to the target access node over the established radio connection. A radio connection with the source access node is released and a PDCP status report is transmitted to the target access node for each configured radio bearer. The respective PDCP status report indicates PDCP Sequence Numbers (SNs) of missing PDCP SDUs.

User equipment, target access node and methods in a wireless communications network for handling packet data convergence protocol (PDCP) service data units (SDU) when performing a dual active protocol stack (DAPS) handover

A method of operating a wireless device () is described. The method includes providing () a connection with a source access node. The method also includes receiving () a handover command from the source access node while providing the connection with the source access node. The method also includes establishing () a connection with a target access node responsive to receiving the handover command. The method further includes transmitting () uplink data to the source access node after establishing the connection with the target access node. Related wireless devices are also discussed.

Methods providing transmission of UL data to a source access node after establishing connection with a target access node and related wireless devices

A method performed by a User Equipment, UE, to perform handover from a source access node to a target access node is provided. The UE, the source access node andthe target access node are operating in a wireless communications network. The UE receives () a handover command message from the source access node. The UE establishes () a target radio connection with the target access node, and determines () whether or not a source cell release criterion is fulfilled. When the source cell release criterion is determined to be fulfilled, the UE releases () a source radioconnection with the source access node.

User equipment and methods therein for performing handover

A process allows a UE to acquire a System Frame Number (SFN) before accessing a target base station/node during a RACH-less handover. The SFN may be provided to the UE in various ways. For example, the SFN may be provided as part of a handover command message (e.g., RRCReconfiguration) or a master information block (MIB). In this manner, the UE acquires the SFN before accessing the target base station/node, which allows the target base station/node and the UE to effect certain timings for the handover. For example, the target base station/node and the UE may set time bounds in which the handover must occur. As another example, different types of uplink grants may be set.

Aligned configuration for random access channel-less handover/secondary cell group change

According to certain embodiments, a method by a wireless device is provided for mapping of application data packets onto bearers. The method includes associating at least one tag value with a bearer upon establishment of the bearer. A tag is attached to a packet when passing the packet to a lower layer. The packet is mapped onto the bearer, and a path to transmit the packet is selected.

Method and node for determining priority of data from a scheduling assignment

A method in a node is disclosed. The method comprises generating a tag for an associated data packet at a first layer, the generated tag indicating one or more parameters related to transmission of the associated data packet. The method comprises signaling the tag from the first layer to another layer. The method comprises mapping, at the another layer, the associated data packet to a logical channel based on the one or more parameters indicated by the tag, and selecting one or more resources for transmission of the associated data packet based on the mapping of the associated data packet to the logical channel.

Per-packet resource pool selection in LTE V2X system

Handling of UE capability information in a mobile telecommunications network wherein an eNodeB receives information regarding the UE capability information from the UE and stores the information. The eNodeB sends the UE capability information to the EPC, i.e., to an MME, which receives and stores the UE capability information. When the UE transits from idle to active state, does an initial attach, or when a part of the UE capabilities have changed, it sends a message to the eNodeB regarding the update. The eNodeB forwards the message to the MME, which sends a response associated with the previously stored UE capability information to the eNodeB. The eNodeB decides whether the UE capabilities stored in the MME is up-to-date based on the message from the UE and the response from the MME. If the UE holds updated UE capabilities the eNodeB can request updated UE capability information from the UE.

Method and arrangement in a telecommunication system

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Linköping, Sweden

Pontus Wallentin