34results about How to "Reduce measurement complexity" patented technology

The embodiment of the invention provides a communication method, a base station, and user equipment. The method comprises the steps: forming m wave beams through employing a mode of antenna weighting, wherein the m is a positive integer which is greater than 1; determining the uplink receiving power of each of the m wave beams according to an uplink detection signal of the user equipment (UE); selecting n wave beams from the m wave beams according to an uplink receiving power of each of the m wave beams, wherein n is a positive integer and is less than m; and sending an pilot signal to the UE according to the n wave beams. In the embodiment of the invention, the uplink receiving power of each of the m wave beams is determined according to the uplink detection signal of the user equipment (UE), and n wave beams are selected from the m wave beams to send pilot signal to the UE according to the uplink receiving power of each of the m wave beams, not sending the pilot signal to the UE through all wave beams, thereby improving the flexibility of pilot signal configuration for the UE, and reducing the complexity of the measurement of the pilot signal through the UE.

The invention discloses analyte measuring electrochemical bio-sensing test paper with a blood volume ratio correcting function, a biosensor device, a system and a method. The test paper comprises a first group of electrodes for detecting the concentration of an analyte and a second group of electrodes for detecting a blood volume ratio concentration, wherein the first group of electrodes and the second group of electrodes correspond to different reaction regions respectively; a reaction layer reacting with a substance to be measured is only covered on the first group of electrodes; and first signals including a direct current signal are supplied to the first group of electrodes and second signals including a fixed-frequency alternating current signal are supplied to the second group of electrodes, so that an analyte concentration and a blood volume ratio which are not corrected are further measured respectively and a more accurate analyte concentration corrected by a blood volume ratio is obtained.

The invention provides a channel state information reference resource configuration method. The channel state information reference resources configuration method comprises the following steps that: a base station configures channel state information reference resources corresponding to a channel state information (CSI) measurement process for a terminal through terminal dedicated high-level signaling; and the channel state information (CSI) measurement process is one of a CSI process, a combination of the CSI process and a sub frame cluster, and a combination of the CSI process and a CSI report. The invention further provides a channel state information reference resource determination method. According to a method for the base station to aperiodically trigger terminal feedback, when the base station aperiodically triggers the terminal feedback, the minimum interval of two times of aperiodic triggering is N millisecond. According to a method for the terminal to aperiodically trigger feedback, when the terminal aperiodically triggers the feedback, the minimum interval of two times of aperiodic feedback triggering execution is N millisecond. The invention also provides a base station and a terminal.

A system and method of query optimization are disclosed. A complexity measure of a client query received from a client application is compared to a predetermined threshold, which is determined using at least one of system data and query execution data. An optimized query is generated by modifying the client query to reduce the complexity measure of the client query if the complexity measure of the client query exceeds the predetermined threshold. The optimized query is submitted to a server application on a server and a post-processing routine to be applied to the result set is selected.

The invention relates to a flow metering device and metering method, and a measurement and control integrated gate system. The device includes a liquid measuring box, an ultrasonic transducer and sonar; the ultrasonic transducer and the sonar are arranged on the liquid measuring box; the ultrasonic transducer is used for obtaining the flow velocity of a liquid; the sonar is used for obtaining thesectional area of liquid flow and flow revision coefficients; and the liquid flow can be obtained according to the flow velocity of the liquid, the sectional area of the liquid flow and the flow revision coefficients. The device can optimize the layout of the ultrasonic transducer, increase sonar measurement sectional areas and the flow revision coefficients, and perform correction on measuring results of the ultrasonic transducer on the basis of conventional measurement and control integrated gate water measuring tanks, and therefore, the precision of flow metering can be significantly enhanced, and the precision can reach up to 99%; and the system can mitigate the work intensity of water distributors and reduce water distribution disputes, and therefore, water distribution management level can be enhanced, water resources in irrigation areas can be fully utilized, and irrigation benefits in the irrigation areas can be increased.

The invention provides a method for testing binding power between multi-wall nanotubes in order to accurately test the binding power between the two multi-wall nanotubes when the nanotubes are located at the complex positions in space. The method includes the following steps that relative coordinates and absolute coordinates between corresponding points on the two multi-wall nanotubes in different coordinate systems are determined according to the geometric distribution condition of the two multi-wall nanotubes in space; the cohesive energy relational expression between the two multi-wall nanotubes can be calculated according to the Van Der Waals interaction between the two multi-wall nanotubes, and integration is conducted so that the total cohesive energy expression between the two multi-wall nanotubes can be obtained; derivation treatment is carried out on the total cohesive energy expression, so that the expression of the binding power between the two multi-wall nanotubes is obtained; the magnitude of the binding power between the two multi-wall nanotubes is calculated through a binding power formula by means of the given multi-wall nanotube radii and the perpendicular distance and the cross angle between the tubes. The method has the advantages that cost is low and the operation procedure is simple and convenient. Testing complexity is effectively lowered, and meanwhile high accuracy and precision are achieved. The method is suitable for application and popularization.

The embodiment of the invention discloses a length measurement method and a terminal. The method comprises: when the measurement function of a terminal is started and the terminal is located at a first position, the terminal starts a light beam emission instruction; the terminal emits a first light beam according to the light beam emission instruction, and the first light beam and a first plane form an emission included angle; when the first light beam is emitted, the terminal obtains first operation, and the first operation is configured to indicate the terminal to rotate taking a first edge as an axis; when the terminal is rotated from the first operation to a second position based on the first operation, the terminal obtains a rotation angle, and the second position is a position of the first edge of the terminal being overlapped with the first end of an object to be measured and the first light beam reaching the second end of the object to be measured; and the terminal calculates the length of the object to be measured according to the preset angle of the emission included angle, a preset distance and the rotation angle, the length of the object to be measured is a distance from the first end to the second end, and the preset distance is a distance from an arrangement point of a light emission unit on the first plane to the first edge.

Embodiments of the invention provide a measurement method and device for positioning, and a storage medium. The method comprises the following steps: receiving resource configuration information and measurement constraint information sent by a positioning server, wherein the measurement constraint information is used for indicating how target equipment uses the resource corresponding to the resource configuration information for measurement; and performing resource measurement based on the resource configuration information and the measurement constraint information, and sending a measurement result to the positioning server. According to the embodiments of the application, the measurement constraint information is added to perform positioning measurement limitation, so UE or the base station only measures a reference signal in an effective direction, the measurement complexity of the UE and the base station is reduced, and positioning time delay is also reduced.

Disclosed are a signal measurement method and a device, and a computer readable storage medium, the method comprises: a network side configures a measurement period of a user equipment (UE) for measuring a reference signal (RS) in an activated state and an energy-saving state, or configures a transmission period of the measurement RS in the activated state and the energy-saving state of the UE; the network side configures a transmission window for measuring RS; and the network side sends the configured measurement period or sending period and the transmission window to the UE, sends a wake-upsignal wake up signal to the UE, and sends a measurement RS to the UE according to the sending period and/or the transmission window. The method can reduce the UE measurement complexity, reduce the UEmeasurement power consumption, reduce the power consumption of the base station side, and reduce the resource overhead.

The invention discloses a method for measuring three-dimensional angular motion by adopting optical flow. Three or more than three optical flow sensors with non-coplanar directions are used for strapdown connection with a measured object, and a plurality of continuous two-dimensional image streams in an imaging range are obtained; corresponding optical flow measurement values are calculated according to the obtained two-dimensional image flow and the principle of similar triangles and multiplied by set coefficients to obtain corresponding angular increment proportional expressions on the x axis, the y axis and the z axis, and then the angular increment proportional expressions are converted into products of constant coefficient matrixes and optical flow measurement value matrixes to obtaincorresponding three-dimensional angular increments, and thus the measurement complexity is reduced.

The invention discloses a measuring method and device. According to the method and the device, the feedback overhead is saved, and meanwhile, a measurement result meets the demand of CoMP. The measuring method comprises the following steps that a first network device sends a restricted channel state information (CSI) measurement instruction to a second network device, wherein the restricted CSI measurement instruction is used for indicating the second network device to perform restricted CSI measurement; and the first network device receives CSI sent by the second network device, wherein the CSI is generated after the CSI measurement is completed according to the CSI measurement instruction.

The invention discloses a direction-of-arrival measurement device and method based on a large-scale antenna array. The direction-of-arrival measurement device comprises a first receiving antenna, a second receiving antenna, a third receiving antenna and a fourth receiving antenna, wherein the first receiving antenna and the second receiving antenna are spaced transversely, the third receiving antenna and the fourth receiving antenna are spaced longitudinally, and the first receiving antenna, the second receiving antenna, the third receiving antenna and the fourth receiving antenna are installed on a guide rail movement device through a connecting device; the first receiving antenna and the second receiving antenna are both connected with the same first phase detection module, the third receiving antenna and the fourth receiving antenna are connected with the same second phase detection module, and a single-chip microcomputer is connected to the output ends of the first phase detectionmodule and the second phase detection module; a guide rail control unit and an upper computer are further connected to the single-chip microcomputer separately. According to the direction-of-arrival measurement device and method, the large-scale antenna array is simulated through a small number of antennas, and the antenna cost and computation complexity are lowered.

The invention provides a totally-enclosed calibratable magnetic ring impedance measurement clamp. The magnetic ring impedance measurement clamp comprises a metal shell, and insulating support pieces and a metal coaxial core wire which are positioned in the metal shell, and the whole clamp is of a coaxial structure; the metal shell is divided into a part A shell and a part B shell; the two ends of the metal shell are respectively provided with an electrical connector; the insulating support pieces are correspondingly divided into a first insulating support piece and a second insulating support piece which are respectively and fixedly arranged in the part A shell and the part B shell, and a space for mounting a to-be-tested magnetic ring is reserved at a position close to the butt joint position of the shell; and the metal coaxial core wire penetrates through the first insulating supporting piece and the second insulating supporting piece and is correspondingly connected with the electrical connectors arranged at the two ends of the metal shell. According to the invention, a totally-enclosed coaxial structure is adopted, so that the influence of high-frequency parasitic capacitance and leakage inductance on a measurement result is avoided; and meanwhile, the coaxial structure is stably limited, so that the accuracy and the consistency of the impedance of the magnetic ring during high-frequency measurement can be improved.