Nokia Technologies Oy

Nokia Corporation

Lauri Ilari Kuru

Teemu Mikael Veijalainen

Zexian Li

Jani Moilanen

Jani Matti Johannes Moilanen

Klaus Ingemann Pedersen

Mikko Johannes Honkala

Roman Pichna

Petri Antero Jolma

Guillermo Pocovi

Jarmo Tapani Makinen

Juha Heiskala

Leo Mikko Johannes Kärkkäinen

Jarmo Mäkinen

Otto Pulkkinen

Keeth Saliya Jayasinghe

Petteri Kela

Systems, methods, apparatuses, and computer program products for error probability feedback are provided. One method may include transmitting, to at least one user equipment, a configuration for protocol data unit error probability calculation and reporting. The method may also include receiving, from the at least one user equipment, feedback related to the protocol data unit error probability.

Protocol data unit (PDU) error probability feedback

A method may include determining, by the network node for a flow, a plurality of reliability targets, wherein each reliability target of the plurality of reliability targets is associated with a different number of consecutive packet transmission errors for the flow and/or associated with a different value or range of values of a remaining survival time for the flow; determining, by the network node for a flow, a number of consecutive packet transmission errors or a remaining survival time for the flow; and determining, by the network node, a reliability target of the plurality of reliability targets, for a next packet transmission for the flow based on at least one of the number of consecutive packet transmission errors or the remaining survival time for the flow.

Dynamic reliability target for wireless networks

A method, apparatus, and a computer-readable storage medium are provided for radio link adaptation. In an example implementation, the method may include a user equipment receiving a channel quality report configuration from a network node, the channel quality report configuration including a first transport block size. The method may further include determining a channel quality indicator based at least on the first transport block size and transmitting the channel quality indicator to the network node. In another example implementation, the method may include a network node determining a first transport block size, the first transport block size being a target transport block size, and transmitting a channel quality report configuration to a user equipment, the channel quality report configuration including the first transport block size. The method may further include receiving a channel quality indicator from the user equipment, the channel quality indicator determined at the user equipment based at least on the first transport block size transmitted from the network node.

Transport block size driven CQI feedback scheme

A technique includes receiving, from one or more sensors, sensor data samples; receiving radio network information data samples associated with a radio network; determining, based on an association of one or more received sensor data samples with one or more of the received radio network information data samples, a first set of one or more associated sensor and radio network information data samples; developing a model that is trained based on at least a portion of the first set the associated sensor and radio network information data samples that are relevant to performance of the radio network; and improving performance of the radio network based on at least the model.

Radio-network self-optimization based on data from radio network and spatiotemporal sensors

A technique may include receiving, from one or more sensors, sensor data samples; receiving radio network information data samples associated with a radio network; determining one or more associated sensor and radio network information data samples based on an association of one or more received sensor data samples with one or more of the received radio network information data samples; selecting at least some of the one or more associated sensor and radio network information data samples that are relevant to performance of the radio network; and forwarding the selected associated sensor and radio network information data samples for subsequent use.

Associating and storing data from radio network and spatiotemporal sensors

The present invention provides a method and respective entities for avoiding handovers in a ping-pong manner in a communication network. The method comprises comparing, when a handover of a mobile station to a base station is intended, decision criteria of the intended handover with decision criteria of previous handovers of the mobile station to that base station, and deciding on allowing or preventing the intended handover based on the result of the comparison.

Avoiding ping-pong handovers

A host base transceiver station BTS derives a reference timing signal from a physical layer training signal (such as a preamble) received from a neighbor network node/BTS. Downlink transmissions are then synchronized to the derived reference timing signal. This may be used as a holdover timing mode, such as when the host BTS determines that synchronization from a primary source is no longer reliable. In an embodiment, a reference oscillator of the host BTS is phase locked to the derived reference timing signal. Variations include one or multiple such training signals from one or multiple neighbor BTSs, selecting one BTS when the primary synchronization mechanism fails for several BTSs in the same area, and how to phase lock the oscillator without dithering about the target frequency. Apparatus and computer programs are also detailed.

Alternate mobile network cell synchronization

The objective of the invention is to increase the potential hop density of single frequency TDD radio links by allowing a set of closely located terminals to use a single channel. This is possible when transmission and reception periods of the terminals are synchronized so that the transmit period of any of the terminals in a terminal group does not overlap with the receive period of any of the terminals in the group. Synchronization is achieved by selecting at least one terminal in a hub site as a super master terminal. This terminal gives timing through a common bus to the rest of the terminals in the group. These terminals use the received timing for adjusting their own timing i.e. for adjusting the starting moment and ending moment of the transmission and reception periods in such a manner that none of terminals is sending a burst while another terminal is receiving.

Synchronization of terminals in a radio link system

A method and an arrangement for compensating for amplitude imbalance of a quadrature modulator including: determining a first correlation on the basis of a first modulation signal and an output signal of the quadrature modulator; determining a second correlation on the basis of a second modulation signal and the output signal of the quadrature modulator; producing a compensation signal proportional to the amplitude imbalance on the basis of a ratio of the determined correlations and the first and second modulation signals; and processing at least one of the modulation signals of the quadrature modulator with the compensation signal; wherein determining the correlations uses unprocessed modulation signals of the quadrature modulator for determining the correlations.

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Espoo, Finland

Lauri Ilari Kuru