Nokia Technologies Oy

Thomas H Jacobsen

Renato Barbosa Abreu

Nuno Manuel Kiilerich Pratas

Troels Emil Kolding

Ling Yu

Devaki Chandramouli

Daniela Laselva

Jeroen Wigard

Klaus Hugl

Benny Vejlgaard

Johannes Harrebek

Faranaz Sabouri-Sichani

Dawid Koziol

Istvan Zsolt Kovacs

Torsten Wildschek

Guillermo Pocovi

Sigen Ye

Vinh Van Phan

Frank Frederiksen

Klaus Ingemann Pedersen

Zexian Li

Yong Liang Liu

Oana-Elena Barbu

Ryan Keating

Ping-Heng Kuo

Rakash Sivasiva Ganesan

Daniel Medina

Kari Juhani Niemelä

Jari Olavi Lindholm

Prajwal Keshavamurthy

Jan Torst Hviid

Pilar Andrés Maldonado

Gilberto Berardinelli

Akshay Jaiswal

Jian Guo Liu

István Zsolt Kovácks

Poul Larsen

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

Systems, methods, apparatuses, and computer program products for device-to-device (D2D) assisted 5G timing synchronization by enabling or disabling time compensation are provided. One method may include determining to initiate a procedure to determine whether to enable or disable propagation delay (PD) compensation for acquiring 5G system (5GS) timing with a sidelink (SL) group of user equipment. When it is determined to initiate the procedure, the method may include transmitting propagation delay (PD) information of the user equipment as a sidelink (SL) groupcast message over a sidelink (SL) control channel to at least one of the group of user equipment, receiving at least one of acknowledgement or nonacknowledgement from one or more of the group of user equipment, and determining whether to enable or disable the propagation delay (PD) compensation based on the received acknowledgement or nonacknowledgement from the group of user equipment.

Device-to-device assisted timing synchronization

A method, apparatus, and a computer-readable storage medium are provided for constructing a HARQ-ACK codebook for managing the trade-off between codebook size and feedback granularity. In an example implementation, the method may include a network node determining a second time domain resource allocation table and transmitting configuration information to the UE. The method may further include the network node transmitting downlink data to the UE and receiving the one or more ACKs and/or NACKs from the UE in response to the transmitting of the downlink data, the one or more ACKs/NACKs being generated based at least on the second time resource allocation table. In another example implementation, the method may include a user equipment (UE) receiving configuration information from a network node, receiving downlink data from the network node, and transmitting one or more ACKs/NACKs to the network node.

Flexible semi-static HARQ-ACK codebook overhead

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

Systems, methods, apparatuses, and computer program products for user equipment behavior with respect to hybrid automatic repeat request retransmission in new radio sidelink co-existence scenarios with another technology are provided. For example, a method can include enabling, for a receiving user equipment, hybrid automatic repeat request negative acknowledgement only feedback. The method can also include first determining whether to condition negative feedback on at least one first condition, or second determining whether negative feedback is conditioned on at least one second condition. The method can further include third determining whether to retransmit a message according to hybrid automatic repeat request according to results of the first determining or the second determining. The method can additionally include communicating with the receiving user equipment based on a result of the third determining.

User equipment behavior of hybrid automatic repeat request retransmission in new radio sidelink co-existence scenario with other technology

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

Method, apparatus, computer program for a user equipment having at least two connections to at least two network nodes, where each connection corresponds to a different user identity, selecting by the user equipment one of the at least two network nodes to communicate exclusively with during one or more time intervals; and sending by the user equipment one or more messages toward the other ones of the at least two network nodes, the one or more messages indicating to the other ones of the at least two network nodes that the user equipment is unavailable for communication during the one or more time intervals.

Multi-USIM UE assistance information with unavailable time

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

An apparatus including at least one processor and at least one memory including computer program code. The at least one memory and the computer program code configured, with the at least one processor, to cause the apparatus at least to receive, from a serving access node, a downlink radio resource control message including reference time information for a clock provided by the serving access node and traceability information for enabling traceability of the clock to a reference time standard. The traceability information includes at least information on a clock class indicative of a current status of the clock provided by the serving access node.

UTC traceability support for terminal devices

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

The present disclosure relates generally to the field of wireless communications, and in particular to techniques for performing one-step data transmissions from a User Equipment (UE) to a Base Station (BS), without requiring the UE to transit from an idle state to a connected state in a wireless communication network. To make it possible to perform the one-step data transmission, the UE receives a confirmation from the BS that the BS supports the one-step data transmission (which means that the BS has allocated, in advance, the UL resources for performing the one-step data transmission), and to have a pre-stored database associating cell IDs of different cells with corresponding pre-allocated UL resources and transmission parameters. Said confirmation from the BS may be represented by a predefined signal sequence, the presence of which will inform the UE about the possibility of performing the one-step data transmission within a cell of interest. After receiving the predefined signal sequence, the UE uses the pre-stored database to find the UL resources and transmission parameters used for the one-step data transmission from the idle state within the cell of interest.

One-step data transmission in telecommunication systems

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

Techniques of ensuring that the survival time requirement is fulfilled include applying, by the UE (transmitter), a plurality of different logical channel (LCH) mapping restrictions to the packets on the same data radio bearer (DRB). In some implementations, the LCH mapping restrictions to be applied depend on the SN of the PDCP PDU to be processed. For example, the first LCH mapping restriction may be limited to radio resource with lower reliability (e.g., with the first LCH mapping restriction, the data from this LCH can only be mapped to a CG configuration without repetition and/or high MCS), while the second LCH mapping restriction may be limited to radio resources with extremely high reliability (e.g., with the first LCH mapping restriction, the data from this LCH can only be mapped to a CG configuration with repetitions and/or low MCS).

Packet-dependent logical channel restriction

Methods, apparatuses, and computer programs are provided for propagation delay compensation. A method for a UE includes receiving a configuration to provide a propagation delay notification for a propagation delay estimation; determining when the notification should be transmitted; transmitting the propagation delay notification; and determining a corresponding action based on the configuration of a relation between uplink reference signals and downlink reference signals. Methods are also provided for a radio node such as a base station.

UE initiated propagation delay compensation mechanism

A method, apparatus and computer program are disclosed that perform in a wireless network: monitoring radio network connectivity release requests received from a wireless device of a given subscriber of the wireless network; determining a radio network connectivity release request frequency based on the radio network connectivity release requests received from the wireless device; receiving a current radio network connectivity release request from the wireless device; determining whether the radio network connectivity release request frequency meets a first threshold and: if yes, taking first corrective action to mitigate network load by excessive radio network connectivity release requests.

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Nørresundby, Denmark

Thomas H Jacobsen