Diseño De Sistemasen Silicio, S.a.

David Ruiz López

Jorge Vicente Blasco Claret

Juan Carlos Riveiro Insua

Nils Hakan Fouren

Luis Manuel Torres Cantón

Juan Carlos Riveiro Insúa

Carlos Pardo Vidal

Francisco Javier Jiménez Marquina

Judit Carreras Areny

FelicianoS Gómez Martínez

The invention describes a data transmission method for a multi-user. multipoint-to-multipoint digital data transmission system involving a plurality of users equipment () which are bidirectionally connected via physical medium (). The method is intended to communicate one (-) users equipment at different speeds, sending multiple frames, maintaining the bandwidth and maximum latency values required by each destination user (-). Further, this method consists in using the percentage reserve of the frame, providing a quality of service based on that required by the user equipment and supplying a criterion for dynamically assigning the packets sent to each user equipment in the frame, grouping or dividing them.

Process for the transmission of data by a multi-user, point to multi-point digital data transmission system

This process applies to a number of user kits (A, B, . . . X) and a head-end kit () communicating over the electricity network () using an upstream channel and a downstream channel. In essence, the process comprises accessing by multiple user kits (A, B, . . . X) in the upstream channel and the sending of multiple information frames by the head-end () in the downstream channel simultaneously applying OFDMA/TDMA/CDMA multiplexing and dynamically assigning each carrier so as to maximize transmission capacity in both the upstream and downstream channels. In turn, the process allows the adjustment of the quality of service according to the type of information and the user that requires the transmission and the dynamic allocation of bandwidth through constantly calculating the signal-to-noise ratio.

Process for multiple access and multiple transmission of data in a multi-user system for the point to multipoint digital transmission of data over the electricity network

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Valencia, Spain

David Ruiz López