摘要:
Due to NACK-to-ACK misinterpretations in base stations, packets are lost, and there may be gaps in a re-ordering buffer of a base station. According to the present invention, when the receiver decodes—possibly after some retransmissions—a first data packet without an error, which first data packet is sent along with an indicator indicating that the first data packet is a new data packet, after the receiver has sent a negative confirmation message (NACK) with respect to a second data packet, the receiver sends a Revert (REV) message to the transmitter. The REV message informs the base station that the first data packet was decoded error-free, and that the second data packet is still missing on the receiving side so that the base station may re-send this second data packet.
摘要:
Due to NACK-to-ACK misinterpretations in base stations, packets are lost, and there may be gaps in a re-ordering buffer of a base station. According to the present invention, when the receiver decodes—possibly after some retransmissions—a first data packet without an error, which first data packet is sent along with an indicator indicating that the first data packet is a new data packet, after the receiver has sent a negative confirmation message (NACK) with respect to a second data packet, the receiver sends a Revert (REV) message to the transmitter. The REV message informs the base station that the first data packet was decoded error-free, and that the second data packet is still missing on the receiving side so that the base station may re-send this second data packet.
摘要:
Data transmission in a telecommunication system may become critical if too many data packets of the same logical channel are contained in a single container which gets lost. According to an exemplary embodiment of the present invention, this problem may be circumvented by accommodating only a maximum number of data packets of the same logical channel to a single container. Advantageously, this may allow for a stable and efficient transmission.
摘要:
The invention relates to a wireless network comprising a radio access network and a plurality of terminals which are each provided for encoding certain data to be transmitted and for forming a key in the same manner in dependence on a first and a second frame number for a connection to be set up or to be reconfigured between the radio access network and a terminal. The first frame number depends on the periodically changing number of the radio frame used for the data transmission and the value of the second frame number depends on the first frame number. Based on the value of the first frame number the terminal and/or the radio access network is provided for ascertaining whether a time delay is to take place in the formation of the second frame number in the radio access network.
摘要:
Device and method for synchronously switching activating a first and second charge accumulation section (31, 32) for a duration of a first and second predetermined sub-frame and a first and second X-ray source until lapse of a predetermined time frame for each of the first and second charge accumulation section (31, 32) for the accumulation of a plurality of temporally distributed partial charges according to an origin of a respective one of the plurality of spatially distributed X-ray sources so as to establish a specific relation between the focal spot position and a rule for accumulating the respective partial measurements, e.g. temporally distributed partial charges, belonging to the same focal spot positions, and to keep the focal spot temperature low by only activating the focal spot for a limited time according to a sub-frame.
摘要:
A detector array (110) of an imaging system (100) includes a radiation sensitive detector (114, 116) that detects radiation and generates a signal indicative thereof. A current-to-frequency (I/F) converter (202) converts the signal to a pulse train having a frequency indicative of the signal for an integration period. Circuitry (120) generates a first moment and at least one higher order moment based on the pulse train.
摘要:
The present invention relates to processing electronics (18) for a detector (12) of an X-ray imaging device (14), the processing electronics (18) with a pulse counter section (22) having at least one count output (30) and with an integrator section (24) having an intensity output (32), wherein the processing electronics (18) is adapted to be connected to a sensor (16) in such a manner that X-ray photons (58) arriving at the sensor (16) can be processed by the pulse counter section (22), by the integrator section (24), or both, and wherein the processing electronics (18) comprises a processor (34) adapted to be connected to the count output (30) and to the intensity output (32) and adapted to output a count result (K) that takes into account both count information (N) obtained at the count output (30) and intensity information (I) obtained at the intensity output (32), so that the count result (K) contains information (N) obtained from the pulse counter section (22) and information (M) obtained from the integrator section (24). The present invention further relates to a corresponding detector element (10) for a detector (12), an X-ray imaging device (14), a method for determining a count result (K) from a detector element (10), a computer program, a data carrier and a detector (12) for an X-ray imaging device (14).
摘要:
The invention relates to a radiation detector and a method for its production, wherein a series of converter plates (110) and interconnect layers (120), which extend into a border volume (BV) lateral of the converter plates (110), are stacked. By filling voids in the border volume (BV) with an underfill material and cutting through the border volume, a contact surface (CS) is generated in which electrical leads (123) of the interconnect layers (120) lie free. To allow a good contacting, said leads (123) are preferably provided with enlargements in the contact surface, for example by bonding wires (132) to them.
摘要:
The present disclosure describes methods, systems, and computer program products for providing access to business network data. One method includes identifying a logical graph from business network linked graph data to be transformed into a resource graph, the logical graph including at least two nodes and at least one edge connecting a pair of nodes and defining a connection between the nodes. Each node is converted into a resource. A resource graph associated with the logical graph can be generated, where generation comprises, for each identified node, associating at least one attribute associated with the identified node as a resource attribute of the corresponding resource, adding at least one node connected to the identified node via an edge in the logical graph as a resource attribute of the corresponding resource, and dissolving at least one connection between the identified node and at least one other entity in the logical graph.
摘要:
An imaging system includes a scintillator array (202) and a digital photomultiplier array (204). A photon counting channel (212), an integrating channel (210), and a moment generating channel (214) process the output signal of the digital photomultiplier array (204). A reconstructor (122) spectrally resolves the first, the second and the third output signals. In one embodiment, a controller (232) activates the photon counting channel (212) to process the digital signal only if a radiation flux is below a predetermined threshold. An imaging system includes at least one direct conversion layer (302) and at least two scintillator layers (304) and corresponding photosensors (306). A photon counting channel (212) processes an output of the at least one direct conversion layer (302), and an integrating channel (210) and a moment generating channel (214) process respective outputs of the photosensors (306). A reconstructor (122) spectrally resolves the first, the second and the third output signals.