Nokia Technologies Oy

Renato Barbosa Abreu

Thomas H Jacobsen

Troels Emil Kolding

Timo Erkki Lunttila

Daniela Laselva

Klaus Hugl

Benny Vejlgaard

Nuno Manuel Kiilerich Pratas

Oana-Elena Barbu

Torsten Wildschek

Vinh Van Phan

Kari Juhani Hooli

Ling Yu

Devaki Chandramouli

Klaus Ingemann Pedersen

Zexian Li

Yong Liang Liu

Emad N Farag

Claudio Rosa

Simon Svendsen

Karol Schober

Yong Liu

Johannes Harrebek

Dawid Koziol

Rakash Sivasiva Ganesan

Jianguo Liu

Guillermo Pocovi

Nuno Pratas

Prajwal Keshavamurthy

Naizheng Zheng

Ali Karimidehkordi

Laura Luque Sanchez

Jan Torst Hviid

Pilar Andrés Maldonado

Roberto Maldonado

Gilberto Berardinelli

Morten Toft

Marco Centenaro

István Zsolt Kovácks

Jian Guo Liu

Akshay Jaiswal

An apparatus, method and computer program product for: performing channel availability monitoring on an operating channel for transmitting uplink control information for transmitting a data packet, in response to determining that the operating channel is available for transmitting the uplink control information, determining delay information relating to the channel availability monitoring, and transmitting the uplink control information and the delay information to the radio access network.

Delay information

According to an example aspect of the present invention, there is provided a method comprising, determining, by a network node, a timing offset (TO) of a first wireless link, determining, by the network node, a timing offset (TO) of a second wireless link, determining, by the network node, a timing offset (TO) of a third wireless link, calculating, by the network node, a timing calibration value of the first sidelink device using the timing offset (TO) of the first wireless link, the timing offset (TO) of the second wireless link and the timing offset (TO) of the third wireless link and transmitting, by the network node, at least the timing calibration value of the first sidelink device.

Sidelink communications in cellular communication networks

Method, apparatuses, and computer program products provide means for monitoring time sources for nodes of a network and providing timing resiliency solutions. An example method includes: establishing time synchronization within a network comprising a plurality of nodes using a time source; receiving an indication regarding at least one of degradation or failure of the time source for at least one node; receiving an indication regarding at least recovery of the time source for the at least one node; and determining, within the network, an action to be taken to upon failure at the at least one node in response to the at least one of the degradation or the failure of the time source for the at least one node, where the action to be taken comprises instructing the at least one node to leverage either hold over functionality or a backup time source.

Time source health monitoring support for network timing resiliency

A grant free uplink data transmission is caused from a device using one of a plurality of subsets of a set of physical resource blocks. Each subset is associated with a transmission scheme, wherein at least a plurality of said subsets are associated with different transmission schemes.

Method and apparatus for performing wireless communications

A method and an apparatus for a second user equipment, that causes the apparatus to perform: determining whether a synchronization signal has been received during a first set of synchronization resources; and when it is determined the synchronization signal was received, determining that the apparatus is allowed to use communication resources during a second set of synchronization resources for a first sidelink communication; and when it is determined the synchronization was not received, abstaining from using the communication resources during the second set of synchronization resources for a first sidelink communication; and monitoring the second set of synchronization resources for a synchronization signal.

Apparatus and method

Disclosed is a method comprising estimating a time synchronization accuracy associated with a plurality of base stations comprising at least a first base station and a second base station based at least partly on one or more uncertainty factors determined by the terminal device, selecting the second base station from the plurality of base stations by comparing the estimated time synchronization accuracy associated with the plurality of base stations, and synchronizing a clock based on the selected second base station.

Clock synchronization

Example embodiments of the present disclosure relate to a solution of transmitting sidelink (SL) feedback information on non-contiguous resource sets. In this solution, in accordance with a determination that a plurality of feedback transmission occasions for sidelink transmissions are mapped on non-contiguous resource sets, an apparatus determines a group of contiguous resource sets mapped with a subset of the plurality of feedback transmission occasions; and transmits feedback information on the group of contiguous resource sets.

Sidelink feedback information

Various example embodiments provide efficient jitter control by means of a hybrid automatic repeat request (HARQ) process. Abase station may transmit to a UE a forwarding time parameter for data packet(s) associated with a HARQ process. The UEmay store the data packet(s) in a HARQ buffer and determine to hold the data packet(s) in the HARQ buffer until a delivery time determined based on the forwarding time parameter. Once the delivery time has been reached, the UE may forward the data packets to higher protocol layers. This enables efficient jitter control of a data packet flow. Apparatuses, methods, and computer programs are disclosed.

Jitter control with hybrid automatic repeat request process

A method of transmitting data from a user equipment (UE) in a radio resource control (RRC) inactive state to a network node is described. The example method includes detecting presence of data for transmitting to the network node and determining whether the user equipment (UE) allows a mode of operation using pre-allocated resources in the RRC inactive state for user data transmission. The example method further includes transmitting the data from the user equipment (UE) to the network node in response to determining that the user equipment (UE) allows the mode of operations using pre-allocated resources in the inactive radio resource control (RRC) state for user data transmission.

Transmitting data from a user equipment in radio resource control inactive state

In accordance with some example embodiments, an apparatus may comprise at least one processor and at least one memory including computer program code, wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus to transmit at least one parameter configuration of a random access channel procedure to a user equipment; receive at least one physical uplink shared channel part of a first random access channel message using at least one transmitter beam configuration; upon detection of at least one preamble part of the first random access channel message, decode the physical uplink shared channel part of the first random access channel message and perform at least one channel quality measurement on at least one demodulation reference signal sequence transmitted on a number of selected transmitter beam configurations.

Rach-based Tx beam refinement procedure

A method may include receiving, by a user equipment from a network entity, a first downlink (DL) control signal activating semi-persistent scheduling (SPS) of a first set of downlink data transmissions, the downlink control signal indicating an applicable hybrid automatic repeat request (HARQ) feedback timing for the first set of downlink data transmissions and receiving one or more of the first set of downlink data transmissions. The user equipment may determine that an applicable HARQ feedback timing for a second set of downlink data transmission previously received with an inapplicable HARQ feedback timing has not been provided. In response to the determination, the user equipment may determine a HARQ feedback timing for the one or more of the first set of downlink data transmissions based a second DL control signal indicating an applicable HARQ feedback timing received after reception of the one or more of the first set of downlink data transmissions.

Triggered hybrid automatic repeat request acknowledgement reporting for downlink semi-persistent scheduling data transmission

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Aalborg, Denmark

Renato Barbosa Abreu