Telefonaktiebolaget Lm Ericsson (publ)

Aitor Hernandez Herranz

José Araújo

Lars M Andersson

Zeid Al-Husseiny

Soma Tayamon

Oscar Novo Diaz

Lars Andersson

Valentin Tudor

A method and a system for reducing the size of a blockchain. The blockchain includes a first set of two or more blocks including an initial genesis block. A new genesis block for the blockchain is generated. The first hash value resulting from hashing the new genesis block matches a second hash value resulting from hashing a last block from the first set of blocks, and the difficulty of determining the first hash value is computationally greater than the cumulative difficulty of determining hash values of all blocks in the first set of blocks. The new genesis block is transmitted to one or more blockchain nodes of a blockchain network, and the first set of blocks is replaced with the new genesis block.

Method and system for reducing the size of a blockchain

A method for determining a content pose of a piece of virtual content. The method is performed in a pose determiner and comprises: acquiring a first anchor pose of the anchoring device; determining a first content pose, being a pose of a piece of virtual content, in relation to the first anchor pose; storing the first content pose in relation to the first anchor pose; determining that a user device needs to determine a content pose of the piece of virtual content; acquiring a second anchor pose of the anchoring device; retrieving the stored first content pose; determining a second content pose of the piece of virtual content based on the first content pose and the second anchor pose; and rendering the piece of virtual content in the second content pose on a user device comprising a display.

Determining a content pose of a piece of virtual content

According to a first aspect, it is presented a method for dynamically selecting a learning model for a sensor device. The learning model is configured for determining output data based on sensor. The method comprises the steps of: detecting a need for a new learning model for the sensor device based on performance of a currently loaded learning model in the sensor device; determining at least one feature candidate based on sensor data from the at least one sensor, wherein each one of the at least one feature candidate is associated with a different source of sensor data; selecting a new learning model, from a set of candidate learning models, based on the at least one feature candidate and input features of each one of the candidate learning models; and triggering the new learning model to be loaded on the sensor device, replacing the currently loaded learning model.

Selecting learning model

It is provided a method for determining a content pose of a piece of virtual content. The method is performed in a pose determiner and comprises the steps of: acquiring a first anchor pose of the anchoring device; determining a first content pose, being a pose of a piece of virtual content, in relation to the first anchor pose; storing the first content pose in relation to the first anchor pose; determining that a user device needs to determine a content pose of the piece of virtual content; acquiring a second anchor pose of the anchoring device; retrieving the stored first content pose; determining a second content pose of the piece of virtual content based on the first content pose and the second anchor pose; and rendering the piece of virtual content in the second content pose on a user device comprising a display.

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Stockholm, Sweden

Aitor Hernandez Herranz