Sony Deutschland Gmbh

Sony Corporation

Gralf Gaedeken

Lothar Stadelmeier

Andreas Schwager

Stephen Tiedemann

Markus Zumkeller

Gerd Spalink

Peter Buchner

A transmitting device, a receiving device, and a communication method for transmitting and receiving data modulated on frequency subcarriers of an OFDM communication system. An OFDM burst includes a preamble part and payload data part, whereby the preamble includes a section of pilot symbols mapped onto every n-th frequency subcarrier and signaling data mapped onto the frequency subcarriers between the frequency subcarriers with the pilot symbols. A first channel estimation on the basis of the received pilot symbols is performed, the result of which is used to reconstruct the entire section of the received preamble as a training pattern for an accurate channel estimation, which is used for a channel equalization of the received payload part.

Transmitting device, receiving device and communication method for an OFDM communication system with new preamble structure

A power line communication method for realizing data communication between at least one first or sending power line communication partner device and at least one second or receiving power line communication partner device. The method checks transmission conditions of a plurality of possible communication channels, thereby generating transmission condition data descriptive for the communication conditions of the respective possible communication channels. Additionally, communication conditions of the plurality of possible communication channels are selected as actual communication conditions based on the transmission condition data.

Power line communication methods and devices

A transmitting device, a receiving device, and a communication method are for transmitting and receiving data modulated on frequency subcarriers of an OFDM communication system. An OFDM burst includes a preamble part and payload data part, whereby the preamble includes a section of pilot symbols mapped onto every n-th frequency subcarrier and signaling data mapped onto the frequency subcarriers between the frequency subcarriers with the pilot symbols. A first channel estimation on the basis of the received pilot symbols is performed, the result of which is used to reconstruct the entire section of the received preamble as a training pattern for an accurate channel estimation, which is used for a channel equalization of the received payload part.

A power line communication method is provided for realizing data communication between at least one first or sending power line communication partner device (P) and at least one second or receiving power line communication partner device (P). The inventive method comprises a step of checking transmission conditions of a plurality of possible communication channels (Ch, . . . , Chn). Thereby generating transmission condition data which are descriptive for the communication conditions of the respective possible communication channels (Ch, . . . , Chn). Additionally, a step of selecting communication conditions of the plurality of possible communication channels (Ch, . . . , Chn) as actual communication conditions based on said transmission condition data.

Dynamic FD coexistence method for PLC systems

An interface link layer device for use in a network having a first sub-network having one or more nodes, a second sub-network having one or more nodes and a long delay link via which the first and second sub-networks are connected. The interface link layer device configured to simulate time critical self-ID packets to be effected on the first sub-network based on received information about one or more nodes local to the second sub-network.

Interface link layer device for long delay connections

An interface link layer device of an interface which allows the interconnection of different networks to build a distributed network, The interface link layer routes complete data packets directly to another interface link layer device that serves the destination via uplink to accept a data packet from a first data bus that has a predetermined destination on a second data bus and to transmit the data packet via a transmission path to interface link layer device. The interface link layer also using downlink to output data packets received via the transmission path from another interface link layer device to a predetermined destination on the first data bus. Further, the interface link layer device is configured such that not all packets have to be transmitted via the interface on basis of an appropriate acknowledge code and response packet generation included in the interface link layer device.

Growing community of inventors

Burgwedel-Kleinburgwedel, Germany

Gralf Gaedeken