Alcatel Lucent

Nokia Technologies Oy

Nokia Solutions and Networks Oy

Jean-Michel Pugeat

Ingo Viering

Ahmad Awada

Philippe Godin

Jedrzej Stanczak

Krzysztof Kordybach

Anna Sillanpaa

Gopal N Kumar

Omar Salvador

Jürgen Mayer

Richard L Davies

Bruno Landais

Tero Henttonen

Harvey Rubin

Baoling S Sheen

Afef Feki

Subramanya Chandrashekar

Robert Atmaram Soni

Veronique Capdevielle

Michael Schopp

Claudiu Mihailescu

Rossella De Benedittis

Dennis J Wiest

Thierry Billon

Alfredo Rocchetti

Frederic Deville

Raghuram Reddy Krishnamurthy

Phillipe Godin

Victor Da Silva

Krzysztof Maliga

Frederick Deville

Wael Motamed

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 to, with the at least one processor, cause the apparatus at least to: select reference neighbouring cells among a plurality of neighbouring cells of a serving cell, wherein the reference neighboring cells have a same numerology and synchronization signal block burst patterns overlapping in time and with a same periodicity; determine a measurement gap configuration allowing at least one terminal served by the serving cell to measure at least one synchronisation signal block from at least one of the reference neighbouring cells; and provide, to the at least one terminal, the measurement gap configuration.

Apparatus, method, and computer program

Various example embodiments relate to relate to network nodes (A;B), methods and computer program products configured to hand over a communication link between a cell and user equipment () in a wireless communication network from a source cell (A) to a target cell (B;C). According to various, but not necessarily all, embodiments of the invention there is provided a node (A), comprising: means configured to establish a communication link between a source cell (A) and user equipment (); means configured to transmit a series of data packets to the user equipment (), each data packet comprising an associated sequence identifier; means to receive an acknowledgement of successful receipt of a data packet of the series by user equipment (), the acknowledgement comprising an indication of the successfully received data packet sequence identifier; means configured to receive an indication of an identified handover target cell (B;C); means configured to request handover of the user equipment () to the identified handover target cell (B;C); means configured to receive an acknowledgement of handover request from the identified handover target cell (B;C); and means to forward data packets to be transmitted to user equipment () to the identified target cell (B;C), the forwarded data packets comprising the indication of associated sequence identifier and the most recent successfully received data packet sequence identifier. Also provided is a node (B), comprising: means configured to receive a request for handover of user equipment () from a source cell (A) to a target cell (B;C); means configured to transmit an acknowledgement of handover request to the source cell (A); and means to receive forwarded data packets forming a series of data packets to be transmitted to user equipment (), the forwarded data packets comprising an indication of a sequence identifier associated with each forwarded data packet and an indication of a most recent successfully received data packet sequence identifier. Arrangements recognise that one way to mitigate some of the negative effects associated with early data forwarding, for example, the increased use of network memory and the risk of duplicate transmissions, is by providing a mechanism supported by a source (A) and target node (B) to allow a target access node (B) to perform efficient data discarding.

Handover with sequentially identified packets

A system, apparatus, method, and non-transitory computer readable medium for reducing and/or optimizing signaling messages between a radio access network (RAN) node and a core network based on an operation mode of the RAN node may include a core network server including: a memory storing computer readable instructions; and at least one processor configured to execute the computer readable instructions to establish a control plane connection with at least one radio access network (RAN) node, the at least one RAN node supporting at least a first connection mode and a second connection mode, determine a connection mode of the at least one RAN node, and restrict transmission of at least one signaling message to the at least one RAN node based on results of the determining the connection mode of the at least one RAN node.

Apparatuses, systems, methods, and non-transitory computer readable media for reducing signaling messages between a RAN node and a core network

In accordance with some embodiments, a method may include transmitting, by a source network entity, at least one handover prepare request comprising at least one extension indication to a target network entity. The method may further include receiving, by the source network entity, in response to the at least one handover prepare request, at least one handover request response from the target network entity. The method may further include transmitting, by the source network entity, at least one handover command acknowledgement to at least one user equipment based upon the at least one handover request response.

Enhanced method for preparing conditional handover to avoid preemption

A method may include receiving a request for conditional handover from a source node. The method may also include sending a conditional handover request acknowledgment message in response to the request. The method may further include sending a conditional handover cancellation message to a source node. The conditional cancellation message may include a genuine cancellation or a modification-related cancellation. Further, the method may include receiving a response message from the source node in response to the conditional handover cancellation message. In addition, the method may include deciding to keep or release user equipment context based on the response message.

Signaling for target-initiated conditional handover modification via cancellation

Disclosed is a method comprising obtaining a plurality of handover parameter values, using a first machine learning model to select a subset of handover parameter values from the plurality of handover parameter values, obtaining historical information of a plurality of terminal devices, determining a first set of optimal handover parameter values for the plurality of terminal devices from the subset of handover parameter values, tagging the first set of optimal handover parameter values with the historical information of the plurality of terminal devices to obtain a labelled dataset, and training a second machine learning model with the labelled dataset, wherein the trained second machine learning model is capable of predicting a second set of optimal handover parameter values for a first terminal device based on historical information of the first terminal device.

Machine learning based handover parameter optimization

A method may include receiving, by a secondary node of a third radio access technology (RAT) that is operating as a secondary node for an inter-radio access technology (inter-RAT) dual connectivity connection with a user device from a master node of a first RAT that is operating as a master node for the inter-RAT dual connectivity connection with the user device, a release request including a forward without sequence number indication that instructs the secondary node of the third RAT to forward, without sequence numbers, data for the dual connectivity connection to a target node of a second RAT, wherein the second RAT is different than the first RAT; and forwarding, by the secondary node of the third RAT towards the target node of the second RAT, via a data forwarding path that omits the master node of the first RAT, data without sequence numbers to the target node.

Data forwarding for inter-radio access technology wireless networks

A method of facilitating paging in a wireless communications network includes generating, at a radio access network (RAN) element of the communications network, a select paging area for a UE which is improved or optimized by taking RAN and UE specific information into account, the select paging area including information indicating one or more cells from among cells of the communications network to which paging messages are to be sent when paging the UE; and sending the select paging area from the RAN element to a core network (CN) element of the communications network.

Radio access network defined paging area

A method of setting hand over (HO) parameters for a user equipment (UE) connected to a first cell of a base station (BS) may include receiving, at the BS, history data corresponding to the UE, the history data including, for each of a plurality of cells the UE was previously connected to, an entry including HO information of the UE at the cell; determining at the BS, an activity type of the UE based on the received history data; and setting, at the BS, the HO parameters for the UE based on the determined activity type, the HO parameters controlling the manner in which the UE detects conditions for initiating an HO event.

Method and apparatus for LTE handover reduction

The present invention provides a method for implementation in a wireless communication system including a plurality of base stations, a plurality of gateways, and a plurality of mobility management entities. The method includes receiving, at a first mobility management entity and from a first base station, measurement data collected by the first base station for a first mobile unit having a connection to the wireless communication system via the first base station. The measurement data includes a temporary identifier associated with the first mobile unit for the duration of the connection. The method also includes identifying the first mobile unit using the temporary identifier and forming a first record associated with the first mobile unit. The first record includes the measurement data collected by the first base station for the first mobile unit and previously collected measurement data for the first mobile unit.

Method of collecting per-user performance data

The present invention provides a method of determining handoff parameters. One embodiment of the method includes determining values of a hysteresis for a handoff from a serving cell, one or more pairwise offset values for hand off between the serving cell and one or more neighbor cells, and one or more times-to-trigger (TTTs) for hand off between the serving cell and the neighbor cell(s). The values may be determined So that hand off is triggered beyond a first distance from the serving cell selected to avoid ping-ponging and within a second distance from the serving cell selected so that a mobile unit moving at a selected velocity does not travel beyond a third distance within the TTT.

Method of determining wireless hand off parameters

The present invention provides a method of assigning cell identifiers to a plurality of cells. The method includes detecting cells within a selected distance from a first cell in the plurality of cells. The distance is selected to encompass portions of neighbor cells of the first cell and neighbor-of-neighbor cells of the first cell. The method also includes assigning a first cell identifier to the first cell. The first cell identifier is different than cell identifiers assigned to the cells detected within the selected distance from the first cell.

Growing community of inventors

Paris, France

Jean-Michel Pugeat