Patent · US Active

Device and method for data transmission

US10554428B2 · kind B2 · utility

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4Claims

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Assignee

TECHNISCHE UNIVERSITÄT MÜNCHEN · DE

Inventors

Andreas Dotzler · Munich, DE
Maximilian Riemensberger · Unterschleißheim, DE
Michael HEINDLMAIER · Freising, DE

Key dates

Filing date	Feb 13, 2015
Grant date	Feb 4, 2020
Priority date	—
Expiry date	Mar 17, 2036

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2001/0093
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A method which is implemented by an access point, and in which requests are received from a number of user devices, in which each of the requests specifies one or multiple requested file blocks of at least one file. A set of multicast groups is determined based on the received requests, and each multicast group contains a set of indices of one or multiple of the user devices and a set of indices of the file blocks which are to be transmitted to the user devices indicated in the multicast group. For each multicast group of the set the file blocks indicated in the multicast group are retrieved and encoded, and a forward error correction process is used. For each of the multicast groups of the set the encoded file blocks indicated in the multicast group are transmitted to the user devices indicated in the multicast group.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.