Abstract: A data communication system includes an access point and a plurality of stations each for exchanging wireless data communication messages with the access point. At least some of the messages are in a format that includes at least one message header and a plurality of data units. Each of the data units includes a respective data unit header and a respective data frame. Each data unit header identifies a respective one of the stations as a recipient to receive the respective data frame of the data unit.

Abstract: A method for switching channels in a wireless communication network comprising at least one access point and clients, wherein the communication network as secondary user uses one of a number of possible channels for data communication. In accordance with the invention, data communication occurs between the access point and the number of clients through the first transmit/receive interface of the access point on a first channel. Parallel to the data communication, a check of the possible channels occurs over the transmit/receive interface by a second transmit/receive interface of the access point to determine which of the channels are free channels that are not being used by any primary users. A channel switch from the first channel to one of the free channels occurs if a prioritized use of the first channel by a primary user is established by the access point of the communication network.

Abstract: A device and a method for controlling a fuel metering system, the fuel pressure being controlled as a function of the operating state of the internal combustion engine. When the internal combustion engine is switched off, the fuel pressure is controlled at a first value. If a condition is present which is normal when the internal combustion engine is switched off, the fuel pressure is controlled at a second value.

Abstract: A housing for a component of an exhaust system, in particular for an exhaust gas purification device, has an envelope that comprises a shrunk clamping portion for the component, a transition portion that adjoins the clamping portion in an axial direction, and a connecting portion that adjoins the transition portion in the axial direction. The diameter of the connecting portion is larger than that of the clamping portion. A method of producing the housing for the component includes providing a tubular envelope, and inserting the component into the envelope. A shrinking step is then carried out in the clamping portion which terminates spaced apart from ends of the envelope as viewed in the axial direction, whereas the axial ends of the envelope are not acted upon.

Abstract: A method and apparatus for packet aggregation transmission which are for application in a system comprising a transmitting end and at least two receiving ends, wherein the method comprises, for each receiving end, determining respectively a hold-up condition of subpackets at the transmitting and receiving ends at the current transmitting time, and determining the receiving end corresponding to the worst hold-up condition of the subpackets at the transmitting and receiving ends, and performing a packet aggregation transmission to the determined receiving end at the current transmitting time. The present invention is directed to point-to-multipoint data transmission, can solve the problem of transmission time sequence for a plurality of receiving ends, and improves the instantaneity of a system to the maximum degree possible.

Abstract: The invention relates to a method and a circuit arrangement for deciding a symbol upon the reception of a signal including or coupled with a quadrature signal pair, wherein the decision is made by means of an analysis of the metric of at least one reception point to at least one nominal point in a complex coordinate space, and the metric is analyzed in the non-Cartesian or not exclusively Cartesian complex coordinate space. The decision is made after the analysis, and during the decision process, a second most probable nominal point and a reliability of the decision are determined.

Abstract: A radio station system for a wireless network with at least two access network nodes, wherein a first of the at least two access network node is assigned to the radio station system as an access network node in the wireless network and the radio station system is connected to the first access network node over an active radio link for the transmission of user data. During the existence of the active radio link between a first radio station and the first access network node, a second radio station transmits or exchanges no user data via a radio link with an access network node in the wireless network and at least at times identifies available access network nodes in the wireless network for the radio station system.

Abstract: The present invention describes a wireless network, in particular for automation, realtime and/or industrial applications, having at least two access network nodes and at least one radio station for wireless communication with at least one of the at least two access network nodes, wherein each of the at least two access network nodes uses a data channel selected from a set of available selectable data channels for wireless communication with a radio station assigned to it in each case, wherein a control communication channel which is distinct from the selectable data channels is provided in addition, and each of the at least two access network nodes is embodied for wirelessly sending information messages over the control communication channel and the at least one radio station is embodied for receiving the control communication channel.

Abstract: One embodiment of the disclosures made herein is a method for facilitating prescribed application functionality via a network element adapted for providing Digital Subscriber Line Access Multiplexing (DSLAM) functionality. In accordance with such a method, a first functionality server implements server-specific functionality whereby information associated with the server-specific functionality is generated. In response to implementing the server-specific functionality, information in a universal interface format is transmitted for reception by a first access server from a first functionality server. The first access server is connected between the network element and the first functionality server. After receiving the information, the information is translated from the universal interface format to a system-compatible interface format. The translating is performed by the first access server and the system-specific interface format is different than the universal interface format.

Abstract: The invention relates to a multistandard receiver circuit for analogue and digital broadcasting, particularly analogue and digital television broadcasting, having a demodulator arrangement with an input for applying digital or digitized values (d) for both analogue and digital broadcasting signals from a tuner (1) and with components and/or an algorithm for processing the values (d). Emphasis should be given to an embodiment and/or controller for processing the values (d) for all processing steps which are to be performed in the field of intermediate-frequency processing with shared components.

Abstract: A method of manufacturing an exhaust gas carrying device, in particular an exhaust gas purification device, and a tool provided therefor include segment-like jaws that are used to deforma an outer housing. The jaws have indentations or projections adjacent to each other, and which are complementary to form a continuously surrounding indentation/projection. The reshaped outer housing is provided with one or more surrounding projections or indentations by the deformation.

Abstract: A method for determining an overpressure in a fuel reservoir of an injection system of an internal combustion engine, in particular in a common rail of a common rail system, the pressure in the fuel reservoir being sensed, an overpressure in the fuel reservoir being identified if the derivative of the sensed pressure over time exceeds a predetermined slope threshold value and the sensed pressure then exceeds a predetermined pressure threshold value.

Abstract: A method for operating a fuel injection system of a motor vehicle in particular is described. The fuel injection system has a fuel accumulator, capable of receiving fuel via a metering unit. In the method, an actual pressure in the fuel accumulator is affected by an I regulator, among other things. A precontrol value is generated by a precontrol characteristic map, which is used for compensating manufacturing-related differences in the components of the fuel injection system.

Abstract: The invention relates to an apparatus and method for processing received data (I1/Q1, I2/Q2; d1, d2) of a radio interface, wherein the received data includes a sequence of data which have been transmitted for the purpose of error reduction through different branches of a carrier (Rk) of the radio interface, and which are combined into a sequence of data (DATAOUT) to be outputted, wherein the combining is implemented on the basis of carrier information values (Req,k, SINRk) of the different branches (k) relative to each other. A maximum ratio combining (MRC) is implemented in which the amplitudes of the branches of the carrier information (Req,1,(Req,2) are combined using a division method as a function of a disturbance information value (MIX, SINR1, SINR2) of the branches (k).

Abstract: An evaporation apparatus for coating a substrate having an evaporation structure for evaporating material, the evaporation structure having an evaporation structure surface for receiving a wire; a wire feed for providing the wire; and a bending fixture with the bending fixture including a first and a second roller for giving the wire a reproducible curvature so that in operation of the evaporation apparatus the contact spot of the wire on the evaporation structure is at a desired position.

Abstract: A method for processing mailings comprising wrong recipient addresses, according to which the wrong recipient address is determined from a detected copy of a mailing surface. The inventive method is characterized in that a) a code containing data on instructions given ahead of time is detected on the surface of the mailing, and the instructions that were given ahead of time are determined based on the detected code; b) the wrong address is compared to address data in at least one database selected among a plurality of databases in accordance with the instructions that were given ahead of time; and c) a pieced of forwarding data is applied to the mailings in accordance with the result of the comparison and the instructions given ahead of time.

Abstract: The invention relates to an apparatus and method for processing received data (I1/Q1, I2/Q2; d1, d2) of a radio interface, wherein the received data includes a sequence of data which have been transmitted for the purpose of error reduction through different branches of a carrier (Rk) of the radio interface, and which are combined into a sequence of data (DATAOUT) to be outputted, wherein the combining is implemented on the basis of carrier information values (Req,k, SINRk) of the different branches (k) relative to each other. A maximum ratio combining (MRC) is implemented in which the amplitudes of the branches of the carrier information (Req,1, (Req,2) are combined using a division method as a function of a disturbance information value (MIX, SINR1, SINR2) of the branches (k).

Abstract: A method is provided for implementing multicast control in a point-to-multipoint tree. In accordance with such method, an operation is performed for receiving a request for translating a network element interface identifier associated with an access multiplexer from a positional port location interface identifier to a system readable interface identifier. The request is transmitted for reception by the access multiplexer from an Internet Protocol (IP) Gateway. An operation for translating from the positional port location interface identifier to the system readable interface identifier is performed after receiving the request, followed by an operation being performed for informing the IP Gateway of the translated interface identifier. Thereafter, an operation is performed for receiving a request for creating a designated root of a point-to-multipoint tree.

Abstract: A data communication system includes an access point and a plurality of stations each for exchanging wireless data communication messages with the access point. At least some of the messages are in a format that includes at least one message header and a plurality of data units. Each of the data units includes a respective data unit header and a respective data frame. Each data unit header identifies a respective one of the stations as a recipient to receive the respective data frame of the data unit.

Abstract: A bit sequence (b, b?) from QPSK or QAM symbols is decoded, in which an associated receive probability (w, w?) is assigned to each receive bit (b, b?). The receive probability (w, w?) is adaptively determined taking into account the transfer properties of the channel.