Nokia Solutions and Networks Oy

Nokia Technologies Oy

Siemens Aktiengesellschaft

Nokia Siemens Networks Oy

Nokia Siemens Networks Gmbh & Co Kg

Hmd Global Oy

Bernhard Wegmann

Ingo Viering

Krzysztof Kordybach

Richard Waldhauser

Dirk Rose

Bernhard Raaf

Ahmad Awada

Simone Redana

Andreas Lobinger

Henrik Martikainen

Wolfgang Zirwas

Egon Schulz

Michael Faerber

Yi Zhi Yao

Torsten Bing

Arndt Kadelka

Vinh Van Phan

Frank Frederiksen

Ling Yu

Klaus Ingemann Pedersen

Edgar Bolinth

Matthias Lott

Andreas Krämling

Tero Henttonen

Daniela Laselva

Jeroen Wigard

Sabine Roessel

Guillaume Decarreau

Xiang Xu

Juergen Michel

Jing He

Hajo Bakker

Christian Markwart

Jakob Lindbjerg Buthler

Cinzia Sartori

Anna Pantelidou

Lianghai Ji

Seppo Hamalainen

Clemens Suerbaum

Hanns Juergen Schwarzbauer

Ugur Baran Elmali

Arto Lehti

Rudraksh Shrivastava

Axel Klein

Petri Eskelinen

Dereje Woldemedhin

Cinzia Gesuina Elena Sartori

Seppo Olavi Hamalainen

Example embodiments of the present disclosure relate to QoE measurement collection in non-connected State. In an example method, a terminal device receives, from an access network device, a quality of experience (QoE) measurement collection (QMC) procedure configuration indicating whether a QMC procedure is to be continued when the terminal device enters into a non-connected state. Then, the terminal device logs, in a logging buffer, QMC logging data of the QMC procedure performed at the terminal device in the non-connected state based on determining that the QMC procedure configuration indicates that the QMC procedure is to be continued when the terminal device enters into the non-connected state. In this way, QMC data collected in a non-connected state can be stored in the logging buffer so that the needed QMC data collected during non-connected state can be maintained.

QoE measurement collection in non-connected state

Embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable storage media of a proactive switch of vehicle-to-everything communication from a device-to-device connection to a connection routed by one or more network devices. In example embodiments, a first terminal device receives, from a second terminal device via a device-to-device connection, an indication of a decision to switch the device-to-device connection to a connection routed by at least one network device for communication with the second terminal device. Based on the received indication from the second terminal device, the first terminal device then determines proactive switching from the device-to-device connection to the routed connection to be performed. The first terminal device then sends a request to a first network device of the at least one network device to set up the routed connection, the request indicating a cause for the determined proactive switching.

Proactive switching of V2X communication from sidelink connection to cellular connection

Systems, methods, apparatuses, and computer program products for mobility failure evidence-related operations. A UE may measure, record, and report a channel access waiting (CAW) time period that elapsed from having a handover-related message in a transmission buffer until a channel for transmission of the handover-related message was obtained or until an acknowledgement or negative acknowledgement from a receiver of the handover-related message was received. The CAW time period information may be provided to a network node, and the network node may control mobility robustness optimization based on the received information.

Mobility failure evidence-related operations

There are provided measures for improvement of coverage hole analysis. Such measures exemplarily include detecting a radio link failure, producing a failure report including information indicative of a radio condition during a time period between said radio link failure and a successful establishment of a radio link, detecting said successful establishment of said radio link, and transmitting, after detection of said successful establishment of said radio link, said failure report.

Coverage hole analysis

The present invention provides apparatuses, methods, computer programs, computer program products and computer-readable media regarding enhanced timer setting for mobility robustness optimization. The present invention includes detecting, at a user equipment, establishment of a connection to a cell, determining, at the user equipment, whether the connection is established by a connection re-establishment procedure, detecting, at the user equipment, a radio link failure of the connection to the cell, and transmitting, by the user equipment, a message to a base station serving another cell after a further re-establishment or setup of the connection, the message including an indication from which it is derivable whether the radio link failure occurred within a certain time after the establishment of the connection by the connection re-establishment procedure.

Enhanced timer setting for mobility robustness optimization

The present invention provides apparatuses, methods, computer programs, computer program products and computer-readable media regarding signaling physical cell identifier problems. Certain aspects of the present invention include receiving, at a network node, information regarding a suspected identifier problem from a first base station, the information indicating the suspected identifier problem between the first base station and a second base station, and analyzing the suspected identifier problem based on the received information.

Signaling physical cell identifier problems

It is provided a method for adapting a parameter being indicative for a trigger signal for starting measurements, by a first base station of a first radio access network of a first type of radio access technology, of a signal quality of signals being received from a second base station of a second radio access network of a second type of radio access technology. The method includes measuring by a user equipment, which is served by the second base station, the signal quality of signals being received from the first base station, reporting a signal being indicative for the measured signal quality from the user equipment to a network entity, and adapting, by the network entity, a parameter based on the measured signal quality, wherein the parameter is indicative for a trigger signal for starting measuring a further signal quality of signals being received from the second base station.

Method for adapting a parameter being indicative for a trigger signal

A method including receiving a message at a first cell including at least one of: state information for the first cell; and state information for any neighbouring cells of the first cell; and determining a neighbouring relationship between the first cell and any neighbouring cells.

Network coordination apparatus

Apparatuses and methods are provided by which a user equipment receives information enabling handover and/or apparatus type identification related to a handover, and stores the information enabling handover and/or apparatus type identification. In case of a connection failure, the stored information enabling handover and/or apparatus type identification may later be used to evaluate the cause for the connection failure.

Evaluating handover failures

There is provided a method and an apparatus for determining an adjustment of a tilt angle (&#x3b1;) for a beam emitted from an antenna () of a base station () which is serving a vertically sectorized cell () of a cellular radio telecommunication network. The method comprises (a) configuring user equipments () being located in the vertically sectorized cell () with dedicated measurements, (b) collecting the dedicated measurements for a specific time interval, (c) obtaining a spatial user equipment distribution among a first sector () of the cell () and a second sector () of the cell () based on the collected dedicated measurements, (d) ascertaining an optimized spatial overlap region between the first sector () and the second sector () based on the obtained spatial user equipment distribution, and (e) determining the adjustment of the tilt angle (&#x3b1;) based on the ascertained optimized spatial overlap region.

Determining an adjustment of a tilt angle for an antenna serving a vertically sectorized cell of a radio network

A method includes optimizing a handover behavior of a mobile radio communication network including at least a first base station and a second base station. The method includes (a) performing a handover of a UE from the first base station to the second base station; (b) adding an information element representing a property of the UE to a report message including information about the performed handover; (c) forwarding the report message from the second base station to the first base station; and (d) optimizing the handover behavior of the mobile radio communication network based on the added information element. Further, it is described a base station which is configured for carrying out the described handover behavior optimization method.

Optimizing a handover behavior of a mobile radio communication network based on an extended report message comprising information about a performed handover

Methods, apparatus and computer program products are disclosed for enhancing mobility robustness optimization in self optimizing networks. Neighbor relation information indicating relations between a handover source cell and candidate handover target cell(s), each including a first counter indicating events of an unsuccessful handover of a user equipment from the handover source cell to one candidate handover target cell, and a second counter indicating events of connection re-establishment attempt of the user equipment to the candidate handover target cell after an unsuccessful handover to another cell. A first candidate handover target cell to which handover of the user equipment was unsuccessful and a second candidate handover target cell to which the user equipment has re-established a connection, out of the candidate handover target cells, are determined. The first counter and/or the second counter of the neighbor relation information concerning the determined first and second candidate handover target cells is updated.

Enhanced mobility robustness optimization

There are provided measures for detection and inhibition of multiple consecutive inter-RAT ping-pong handovers (also called handover bounces). Such measures exemplarily include detecting multiple consecutive ping-pong handovers of a communication endpoint between two radio access technologies, wherein a ping-pong handover includes a handover from one of said two radio access technologies to the other of said two radio access technologies and a handover from the other of said two radio access technologies to the one of said two radio access technologies, and causing immediate inhibition of certain handovers of said communication endpoint.

Detection and inhibition of multiple consecutive inter-RAT ping-pong handovers

A method includes (a) detecting based on reporting information from UEs, HO problems which have occurred within a predefined time interval, (b) classifying the detected HO problems into three categories, (c) determining information being related to at least one of the detected HO problems, wherein the information represents a refinement of one or more of the three categories or wherein the information represents a further category, (d) counting a the numbers of HO problems which have been classified into the various categories, (e) reporting a key performance indicator message indicative for the numbers of the various categories and for the determined information, and (f) adapting, based on the reported key performance indicator message, the value a mobility related network configuration parameter of the mobile radio communication network such that the mobility robustness of the communication network is optimized.

Mobility robustness optimization with an extended key performance indicator message

It is described a method for optimizing a handover behavior of a mobile radio communication network including at least a first base station and a second base station. The method includes (a) performing a handover of a user equipment from the first base station to the second base station, (b) adding an information element representing a property of the radio link between the user equipment and the first base station to a data record being associated with the user equipment, (c) transferring the data record from the first base station to the second base station and (d) optimizing the handover behavior of the mobile radio communication network based on the added information element. It is further described a first base station and a second base station, which in conjunction which each other, are configured for carrying out the described handover behavior optimization method.

Optimizing a handover behavior of a mobile radio communication network based on an extended data record being associated with a user equipment

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Holzkirchen, Germany

Bernhard Wegmann