54 results about "COMP Measurement" patented technology

Methods for a User Equipment (UE) to transmit Channel Quality Index (CQI) feedback information, and an indicator in feedback information, to an evolved Node B (eNB) in a wireless communication system, and apparatuses therefore, are provided. A method for a UE to transmit CQI feedback information to eNB in a wireless communication system, includes obtaining one or more Transmission Points Configurations for Coordinated MultiPoint (CoMP) (TPCCs), each TPCC including a unique combination of one or more cells in a CoMP measurement set, estimating a channel for one or more cells in the CoMP measurement set, computing a CQI for each of at least one of the one or more TPCCs, each CQI being computed using one or more estimated channels that correspond to the combination of one or more cells included in a corresponding TPCC, generating CQI feedback information based on the one or more CQIs, and transmitting the CQI feedback information.

An apparatus and method for compensating for the effect of tool motion in NMR MWD measurements. Signals obtained from a directionally sensitive receiver are compensated for the effects of tool motion. In an alternative embodiment, directional transmitters and receivers are used, with the pulsing of the transmitter controlled by the output of motion sensors. In another embodiment, the transmitters and receivers may be axisymmetric and the received signals are corrected using results of a NMR simulation program that takes account of the recorded motion of the apparatus.

The invention discloses a wave compensation measuring device, a measuring method and an applicationthereof in an ocean platform. The wave compensation measuring device comprises acompensation drive unit and a platform displacement measurement unit, the compensation drive unit comprises a rolling compensation drive device, a pitch compensation drive device, a heave compensation drive device and a drive connection rod; the connection between an upper measurement plate and a lower measurement plate is connected with six linear displacement sensors. The platform displacement measurement unit is arranged to simulatethe six degrees of freedom platform, whereinthe six linear displacement sensors correspond to the six servo cylinders of the six degrees of freedom platform; a compensation drive unit is arranged so as to conductwave compensations on theplatform displacement measurement unit, thus the wave compensation volume of theservo cylinders of the six degrees of freedom platform six is measured, the complex parallel connection machine program algorithm is converted into a mechanical news transmission mechanism, and the wave compensation measurement difficulty is reduced.

The invention discloses a feedback method of a channel quality index (CQI). The method mainly comprises the following steps that: the user equipment (UE) acquires the CQI of a non-cooperative mode in a current coordinated multi-point transmission/reception (CoMP) measurement set, the CQI when all cells participate in cooperation in the current CoMP measurement set and the average CQI when parts of the cells participate in the cooperation in the current CoMP measurement set, and feeds back the each obtained CQI to a network side; or the UE acquires the independent CQI of the each cell in the current CoMP measurement set and an interference average delta of interference generated by all the cell itself except a main service cell, and feeds back the acquired CQI and the interference average delta to the network side. The invention also discloses a corresponding CQI feedback apparatus. In the invention, the network side obtains all the CQIs under the condition of the cooperation set comprised by the current CoMP measurement set and the CQI during non-cooperative transmission so that the cooperation set which is appropriate for the UE can be accurately determined. Feedback cost can be reduced under the condition of guaranteeing feedback precision.

The disclosure concerns a data acquisition apparatus and method. According to the disclosure,

• • a first means providing a series of first digital sampled data (X) at an imperfect sampling frequency (F_E) provided by a local clock (2) comprises sigma-delta modulation means (3) arranged to produce said series of first digital sigma-delta modulated data (X),
  • a second gauging means (50) for measuring the frequency error of the local clock (2) in view of a reference clock (6),
  • a third means for correcting the first data based at least on the measured frequency error, which comprises at least an interpolation means (4) to produce second digital data (Y) based on at least an interpolation of said first series (X) and compensating the measured frequency error (FD), and at least a decimation filter (7) for producing third digital data (A) based on said second digital data (Y),
  • are provided.

The invention discloses a coordinated multi-point (COMP) measurement set notification method and a COMP measurement set notification device. In the method and the device, a coordinated multi-point measurement set to be bed back by user equipment can be determined, and a measurement set indicator can be transmitted to the user equipment according to the determined coordinated multi-point measurement set. By the method and the device, the measurement set for feeding coordinated multi-point cell channel information back can be successfully notified to the user equipment.

In LTE-A release 11 for measuring coordinated multi-point CoMP resources a CoMP resource management set CRMS and a CoMP measurement set CMS is defined (3GPP TR 36.819). The measurement is based on reference signal receiving power RSRP measurement of channel state information - reference signal CSI- RS resource. The measurement set used in a mobile station may be changed by a command (MAC-CE signalling element) from the base station. Problem: There might be situation where after the change the mobile terminal measures CSI-RS resources which are inactive (SCell). This would lead to a waste of energy in the UE. Solution: The UE stops measuring after the change (adding) and continues only after being commanded to by the base station.

An embodiment of the invention discloses a method for controlling downlink JT (Joint Transmission), comprising the steps as follows: a base station receives a CoMP (Coordinated Multiple Points) measurement report event reported by UE (User Equipment) in a first serving cell, wherein the CoMP measurement report event carries adjacent cell information; the base station selects a CoMP adjacent cell of the first serving cell according to the received CoMP measurement report event; and selecting CoMP UE from the UE reporting the CoMP adjacent cell, wherein the sum of a downlink service transmission rate of the selected CoMP UE and a current interactive information transmission bandwidth is not more than a first preset value. The embodiment of the invention also correspondingly discloses a base station and a system for controlling downlink JT. According to the method and the system of the present invention, the CoMP UE is selected to control interactive information transmission bandwidth in a downlink JT technology, thus the problem of limited interactive information transmission bandwidth, which is not considered in the current scheme, can be solved, thereby avoiding downlink JT from occupying transmission resources of other systems, and ensuring downlink service transmission rates of the other systems.

The invention discloses a multi-point cooperation system and a measurement configuration method thereof. The method comprises the following steps of: enabling a serving cell to configure a channel quality report threshold for UE (user equipment) which is initially accessed; enabling the UE to perform channel quality measurement on neighbor cells, and reporting the neighbor cells with SINR (signal to interference plus noise ratio) values which are not less than the channel quality report threshold to the serving cell; enabling the serving cell to select a cooperative cell from the neighbor cells reported from the UE, and configuring CoMP (cooperative multi-point) measurement information for the UE according to the selected cooperative cell; and enabling the UE to perform CoMP measurement according to the CoMP measurement information, and reporting the cooperative cell with the SINR value which is continuously smaller than the channel quality report threshold to the serving cell through a multi-point cooperation need-to-remove list according to the CoMP measurement result. According to the technical scheme disclosed by the invention, the measurement configuration of a cooperative cell set in a CoMP system can be realized.

The present invention provides a method and equipment for determining transmission scheme in Coordinated Multi-Point (CoMP) transmission system. The method includes the following steps: a service base station transmits report type indication signaling to a mobile station, and appoints candidate transmission schemes; based on the report type indication signaling, the mobile station calculates and reports downlink channel relative information in CoMP measurement group of at least one candidate transmission scheme of appointed candidate transmission schemes; based on the channel relative information reported by the mobile station, the service base station determines the transmission scheme to be adopted; and the service base station notifies the determined transmission scheme to the mobile station. By the method and equipment of the present invention, the switch supporting multiple transmission schemes can be provided and the feedback of frequency selective schedule in the existence of multiple transmission schemes can be supported.

The invention discloses a dual-channel shared clock trigger delay adjustment device based on a PCI bus. The method comprises the following steps: firstly, a clock signal and a trigger signal are provided for a delay adjustment control module through an external clock and a trigger source via a signal input interface; meanwhile, control equipment sends a delay adjustment parameter to the delay adjustment control module through a PCI bus; the delay adjustment parameter is input to a parameter analysis module through a PCI interface of the delay adjustment control module, and finally delay adjustment is performed on the clock signal and the trigger signal according to an analysis value so as to compensate the problem of measurement asynchronization caused by self delay of a measurement system, and thus the measurement synchronization precision of the measurement system is enabled to be higher.

The invention provides a temperature compensation method, a printed circuit board, a compressor and a vehicle. The temperature compensation method comprises the steps of: obtaining a data package, enabling the data package to comprise a plurality of data pairs, enabling each data pair to comprise an associated voltage and a measurement temperature, and enabling the measurement temperature to be calculated through a voltage and voltage temperature relation, performing clustering calculation on the data package to obtain a plurality of central data pairs, and forming a central data pair group bythe plurality of central data pairs, fitting a voltage temperature curve by the central data pair group, and generating a temperature compensation model according to the voltage temperature curve andthe theoretical voltage temperature curve, the temperature compensation model being used for compensating the measurement temperature. According to the temperature compensation method provided by theinvention, the digital signal of the NTC temperature-sensitive resistor is acquired, the data is analyzed by using a signal processing method, and finally, the temperature compensation model for monitoring the temperature in real time is established to compensate the measurement temperature, so that the temperature detection precision can be improved, and the printed circuit board can be protected more effectively.

The invention discloses a magnetic hysteresis compensation method, a storage medium and an intelligent wearable device. The intelligent wearable device comprises a measurement Hall sensor and a compensation Hall sensor in addition to a wearable device body and an earphone. The measurement Hall sensor is arranged at a base and is used for being aligned with a magnet on the earphone, and the compensation Hall sensor is arranged on the wearable device body and is staggered from the magnet on the earphone and used for detecting a magnetic field of an environment where the compensation Hall sensoris located. The measurement Hall sensor and the compensation Hall sensor are both electrically connected with an MCU, the MCU compensates a magnetic field detected by the measurement Hall sensor according to a compensation magnetic field corresponding to an interference magnetic field detected by the compensation Hall sensor, and the compensated magnetic field serves as a basis of detecting an access state of the earphone, so that magnetic hysteresis of the Hall sensors is removed and the accuracy of actual measured values of the Hall sensors is improved.