Abstract: An X-ray tube and an X-ray imaging device are disclosed. The X-ray tube comprises: a glass envelope; a cathode assembly, accommodated inside the glass envelope; and a core column structure, connected to the glass envelope and the cathode assembly, such that the cathode assembly is sealed inside the glass envelope. The core column structure comprises: a metal flat plate, wherein the cathode assembly is fixed to the metal flat plate; and a sealing bead, wherein the sealing bead is arranged in the metal flat plate, and an electrically conductive support rod connected to the cathode assembly passes through two ends of the sealing bead. The X-ray tube enables generated heat to be rapidly transferred to a cooling medium via thermally conductive metal to improve heat dissipation efficiency.

Abstract: An X-ray tube and an X-ray imaging device are disclosed. The X-ray tube comprises: a glass envelope; a cathode assembly, accommodated inside the glass envelope; and a core column structure, connected to the glass envelope and the cathode assembly, such that the cathode assembly is sealed inside the glass envelope. The core column structure comprises: a metal flat plate, wherein the cathode assembly is fixed to the metal flat plate; and a sealing bead, wherein the sealing bead is arranged in the metal flat plate, and an electrically conductive support rod connected to the cathode assembly passes through two ends of the sealing bead. The X-ray tube enables generated heat to be rapidly transferred to a cooling medium via thermally conductive metal to improve heat dissipation efficiency.

Abstract: A technique for determining a precoder for a radio transmission via a channel (110) including at least two transmit antennas (106) is disclosed. As to a method aspect of the technique, channel state and optionally channel noise characteristics are measured by a measuring unit (122). Based on a result of the measurement, a subset of precoders is selected out of a codebook (116) including a plurality of precoders by a selecting and determining unit (120). The selecting and determining unit (120) further determines a precoder for precoding the transmission out of the subset.

Abstract: A technique for measuring Reference Signal Received Power (RSRP) is provided. The RSRP is measured based on Cell-specific Reference Signals (CRSs) provided by cells (102, 104) of a mobile telecommunications network (100). The CRSs of at least two of the cells overlap in time and frequency. As to a method aspect of the technique, a time offset for sub-frames received from the at least two cells is determined. The overlapping CRSs are received for a group of sub-carriers. A coarse channel state is estimated for each of the at least two cells by multiplying the received overlapping CRSs with a function of phase-shifted CRSs. The phase-shifted CRSs of different sub-carriers in the group include a phase-shift that corresponds to the determined time offset. The RSRP is measured for each of the at least two cells based on the estimated coarse channel state.

Abstract: A technique for cancelling interference in a cellular network (100) is provided. The cellular network (100) comprises intra-frequency cells (102, 104, 106) sending a first identifying signal indicative of a first identifier (ID1) and a second identifying signal indicative of a second identifier (ID2). Each of the cells is identified by a combination of the first identifier and the second identifier. As to a method aspect of the technique, first samples of the first identifying signal are extracted from a signal received by a User Equipment (120). The first samples include contributions from different cells (104, 106) of the cellular network (100). A first set of sample points is selected based on the first samples and a first candidate (104-1) for the first identifier (ID1). Second samples of the second identifying signal are extracted from the received signal. The second sample includes contributions from the different cells (104, 106).

Abstract: A technique for determining a precoder for a radio transmission via a channel (110) including at least two transmit antennas (106) is disclosed. As to a method aspect of the technique, channel state and optionally channel noise characteristics are measured by a measuring unit (122). Based on a result of the measurement, a subset of precoders is selected out of a codebook (116) including a plurality of precoders by a selecting and determining unit (120). The selecting and determining unit (120) further determines a precoder for precoding the transmission out of the subset.

Abstract: A technique for cancelling interference in a cellular network (100) is provided. The cellular network (100) comprises intra-frequency cells (102, 104, 106) sending a first identifying signal indicative of a first identifier (ID1) and a second identifying signal indicative of a second identifier (ID2). Each of the cells is identified by a combination of the first identifier and the second identifier. As to a method aspect of the technique, first samples of the first identifying signal are extracted from a signal received by a User Equipment (120). The first samples include contributions from different cells (104, 106) of the cellular network (100). A first set of sample points is selected based on the first samples and a first candidate (104-1) for the first identifier (ID1). Second samples of the second identifying signal are extracted from the received signal. The second sample includes contributions from the different cells (104, 106).

Abstract: A technique for measuring Reference Signal Received Power (RSRP) is provided. The RSRP is measured based on Cell-specific Reference Signals (CRSs) provided by cells (102, 104) of a mobile telecommunications network (100). The CRSs of at least two of the cells overlap in time and frequency. As to a method aspect of the technique, a time offset for sub-frames received from the at least two cells is determined. The overlapping CRSs are received for a group of sub-carriers. A coarse channel state is estimated for each of the at least two cells by multiplying the received overlapping CRSs with a function of phase-shifted CRSs. The phase-shifted CRSs of different sub-carriers in the group include a phase-shift that corresponds to the determined time offset. The RSRP is measured for each of the at least two cells based on the estimated coarse channel state.

Abstract: A miniaturized anode module includes a target, a rotor module, a first rotation shaft, a second rotation shaft, and a heat barrier. The target is used for receiving an electron beam in order to excite a ray. The rotor module is used for driving the target in rotation. The first rotation shaft is coupled to the target. The second rotation shaft is coupled to the first rotation shaft and the rotor module, such that the rotor module drives the first rotation shaft and the target in synchronous rotation by the second rotation shaft. The heat barrier is disposed between the first rotation shaft and the second rotation shaft, and is used to block the transfer of heat generated by the target when exciting the ray to the second rotation shaft through the first rotation shaft.

Abstract: The present invention provides a method and a device for calculating a coefficient of a time-domain channel estimation filter. The method comprises: acquiring position information and weight information of symbols carrying RS information corresponding to X1, X2 . . . XP; acquiring position information and weight information of symbols carrying RS information relating to Y1, Y2, . . . YQ; calculating an autocorrelation matrix of a vector I in accordance with the position information and the weight information, wherein I=[X1, X2, . . . XP, Y1, Y2, . . .

Abstract: A method and apparatus for dequeuing data are disclosed. The method includes: obtaining storage addresses of packets in each queue, and dequeuing, by multiple dequeue processing engines, the packets in each queue in parallel according to the storage addresses of the packets in each queue. Multiple dequeue processing engines dequeue the packets in multiple queues in parallel, and thus the data dequeue efficiency and performance are improved.

Abstract: A method and apparatus for dequeuing data are disclosed. The method includes: obtaining storage addresses of packets in each queue, and dequeuing, by multiple dequeue processing engines, the packets in each queue in parallel according to the storage addresses of the packets in each queue. Multiple dequeue processing engines dequeue the packets in multiple queues in parallel, and thus the data dequeue efficiency and performance are improved.