Abstract:
A two-wire process variable transmitter (12) for use in an industrial process (10) includes a process variable sensor (14) configured to sense a process variable of a process fluid of the industrial process (10). Output circuitry (36) provides an output on a two-wire process control loop (18) which is related to the sensed process variable. Terminal voltage measurement circuitry measures (92) a voltage at terminals (40) of the process variable transmitter (12). The terminal voltage is a voltage measured across an electrical connection (40) of the two-wire process variable transmitter (12) to the two-wire process control loop (18). A microprocessor (30) performs loop diagnostics on the two-wire process control loop (18) based upon a loop current and the measured terminal voltage. The microprocessor (30) determines coefficients of a polynomial equation which relates loop current and terminal voltage during normal operation of the two-wire process variable transmitter (12) and performs subsequent diagnostics based upon the coefficients of the polynomial.
Abstract:
A wireless communication system includes a plurality of communication devices, The RF transceiver includes a transmitter and a plurality of receivers, each receiving signal from an associated communication device. An Enhanced Node B (eNB) can communicate with a plurality of communication devices in a Multiple-Input Multiple-Output (MIMO) system. The eNB includes a transmitter and plurality of antenna configured to transmit control information. The Reference Signal Received Power (RSRP) is the linear average over the power contributions (in[WJ) of the resource elements that cany cell-specific reference signals within the considered measurement frequency bandwidth. The invention deals with swapping between cells in Radio Resource Management (RRM) Further Enhanced Non CA- based inter-cell interference Coordination (ICIC) for LTE measurement RSRP accuracy test cases
Abstract:
A method of testing, such as for a bit error rate (BER), of multiple data packet signal transceivers during which a tester and the data packet signal transceivers exchange sequences of test data packets and summary data packets. The tester provides the test data packets which contain respective pluralities of data bits with respective predetermined bit patterns. Responsive thereto, the data packet signal transceivers provide the summary data packets which contain respective summary data indicative of the number of data bits with the respective predetermined bit patterns that are correctly received by corresponding ones of the data packet signal transceivers.
Abstract:
These teachings present a new minimization of drive test MDT mode which is valid when the user equipment UE is in an idle state and in a connected state and across the state transitions. The extended logged MDT configuration according to this mode may be configured for the UE by the network, or autonomously by the UE itself. In some embodiments it is associated with the UE reporting its preference for power optimized configuration indication. Some embodiments have a minimum threshold to assure any MDT report from this mode has a sufficient volume of data or sufficient number of data points logged, and so is well suited for smart phones with always-on applications. The parameters such as logging periodicity can differ between the idle and connected state even for a given extended logged MDT configuration.
Abstract:
Signal conversion circuitry and method for converting a multiple input, multiple output (MIMO) packet data signal transmission to a plurality of complex data samples for processing by shared test equipment, e.g., a single vector signal analyzer (VSA).
Abstract:
Fast error reporting is provided in networks that have an architected delayed error reporting capability. Errors are detected and reported without having to wait for a timeout period to expire. Further, failures of other components caused by the delay are avoided, since the delay is bypassed.
Abstract:
A method and apparatus are described for performing a dual-carrier operation. A first timer is initiated for an anchor carrier and a second timer is initiated for a supplementary carrier. A physical channel failure may be declared on a condition that either of the timers expire before a predefined number of in-synch indication received from a layer 1 (L1) entity is counted. Uplink transmission and enhanced dedicated channel (E-DCH) operations may be stopped on a supplementary carrier associated with the physical channel failure, but may be continued on an anchor carrier that has a physical channel established. If the physical channel failure is associated with the anchor carrier, uplink transmission and E-DCH transmission operations are stopped on all carriers.