Abstract: The present disclosure relates to methods for obtaining channel state information (CSI), apparatus, and computer storage medium. One example method includes allocating, by a network device to a terminal device according to a preset rule, a transmission resource for transmitting a sounding reference signal (SRS) in a cell to which the terminal device belongs. Transmission resources for transmitting SRSs in different cells do not overlap at all or partially overlap. The network device receives the SRS transmitted by the terminal device on the allocated transmission resource, and performs channel quality estimation based on the received SRS to obtain CSI.

Abstract: A portable read-write pen and a control method for a portable read-write pen. The control method for a portable read-write pen includes the following steps: step S1 of detecting a state of a pen point of the portable read-write pen; and step S2 of controlling, according to the state of the pen point of the portable read-write pen, the portable read-write pen to enable a touch-read mode or a write-record mode.

Abstract: A method includes: receiving, by a first network control device, CoMP pre-scheduling requests respectively corresponding to at least one edge cell and a first edge cell that is adjacent to the at least one edge cell and that belongs to another CoMP cluster; when determining, based on the CoMP pre-scheduling requests, that the at least one edge cell has a second edge cell meeting a preset condition with the first edge cell, sending an inter-cluster pre-scheduling request to a second network control device; and instructing the second network control device to assign a first coordination cell set including the first edge cell and the second edge cell.

Abstract: The present disclosure relates to methods for obtaining channel state information (CSI), apparatus, and computer storage medium. One example method includes allocating, by a network device to a terminal device according to a preset rule, a transmission resource for transmitting a sounding reference signal (SRS) in a cell to which the terminal device belongs. Transmission resources for transmitting SRSs in different cells do not overlap at all or partially overlap. The network device receives the SRS transmitted by the terminal device on the allocated transmission resource, and performs channel quality estimation based on the received SRS to obtain CSI.

Abstract: This application provides a downlink control information transmission method and an apparatus. A network device determines that a terminal device is in the first transmission mode in which the terminal device demodulates a PDSCH based on a DMRS. The network device sends a first PDSCH and first DCI to the terminal device. The first DCI includes a first field. The first field indicates, based on a resource allocation type 2, a resource position occupied by the first PDSCH. The terminal device may demodulate the first PDSCH at the resource position indicated by the first field. An existing DCI format indicates a resource position based on a resource allocation type 0 or a resource allocation type 1. The first DCI indicates a resource position based on the resource allocation type 2.

Abstract: Disclosed are a print for touch-read, and a production method and production system for touch-read content of a print. The production method for touch-read content of a print comprises the following steps: S1: coding: when receiving a coordinate coding signal, dividing a print according to virtual grid lines of M rows by N columns, wherein the virtual grid lines divide the print into multiple virtual spaces, each virtual space being provided with a code value, and the code values are continuously set according to row coordinates and column coordinates of the virtual grid lines in an increasing or decreasing manner; and S2: planning touch-read content: before or after the coding is completed, choosing a touch-read area on the print, and planning touch-read content associated with the touch-read area.

Abstract: Disclosed are a portable read-write pen and a control method for a portable read-write pen. The control method for a portable read-write pen includes the following steps: step S1 of detecting a state of a pen point of the portable read-write pen; and step S2 of controlling, according to the state of the pen point of the portable read-write pen, the portable read-write pen to enable a touch-read mode or a write-record mode.

Abstract: A method includes: receiving, by a first network control device, CoMP pre-scheduling requests respectively corresponding to at least one edge cell and a first edge cell that is adjacent to the at least one edge cell and that belongs to another CoMP cluster; when determining, based on the CoMP pre-scheduling requests, that the at least one edge cell has a second edge cell meeting a preset condition with the first edge cell, sending an inter-cluster pre-scheduling request to a second network control device; and instructing the second network control device to assign a first coordination cell set including the first edge cell and the second edge cell.

Abstract: Apparatus and methods related to pipeline freespan support are described. For example, some embodiments may contain an upper structure, which contains at least four legs connected to one another by a number of bracing members, and a number of attachment points through which the upper structure can be lifted, and a lower structure, which contains at least four posts that can be connected to, and disconnected from as needed, the four legs of the upper structure, two spaced mud mats on which the posts stand, and at least two horizontal arms that can be attached to the posts, rotate about the posts, connect to and be locked with the posts on the other mud mat, and be lifted to an appropriate height to provide suitable support at the pipeline freespan location.

Abstract: Apparatus and methods related to low cycle fatigue testing are described. For example, some embodiments may contain a control box, two fitting connections, a pressure gauge, a plurality of clamps, a plurality of hydraulic cylinders, a plurality of control cables, and a strain gauge, for testing the low cycle fatigue properties of a testing specimen, for example, a steel tube umbilical.

Abstract: Apparatus and methods related to umbilical bend-testing are described. For example, some embodiments may contain a three-level support structure, umbilical terminal locker, bending machine, compression testing device, and stress-strain collection system, and may be used for the bending fatigue endurance test for umbilical samples.

Abstract: Apparatus and methods related to riser joint connection are described. For example, some embodiments may contain a central coupler, a plurality of reaction collars, collar stoppers, collar caps, and C-rings, for connecting riser joints.

Abstract: Apparatus and methods related to damping testing are disclosed. For example, some embodiments may contain a testing platform supported on wheels and moveable by hydraulic cylinders, and two fasteners for fastening the testing sample, one fixed on the testing platform and the other moveable along the testing platform by another hydraulic cylinder, and may be used for the damping testing of slender structures such as umbilicals and flexibles used in oil and gas underwater field development.

Abstract: Apparatus and methods related to pipeline freespan support are described. For example, some embodiments may contain an upper structure, which contains at least four legs connected to one another by a number of bracing members, and a number of attachment points through which the upper structure can be lifted, and a lower structure, which contains at least four posts that can be connected to, and disconnected from as needed, the four legs of the upper structure, two spaced mud mats on which the posts stand, and at least two horizontal arms that can be attached to the posts, rotate about the posts, connect to and be locked with the posts on the other mud mat, and be lifted to an appropriate height to provide suitable support at the pipeline freespan location.

Abstract: Apparatus and methods related to low cycle fatigue testing are described. For example, some embodiments may contain a control box, two fitting connections, a pressure gauge, a plurality of clamps, a plurality of hydraulic cylinders, a plurality of control cables, and a strain gauge, for testing the low cycle fatigue properties of a testing specimen, for example, a steel tube umbilical.

Abstract: Apparatus and methods related to fatigue testing are described. For example, some embodiments may contain a terminal fixer, a terminal support, a bending machine, and a stress-strain collector, and may be used for testing fatigue properties of offshore pipes, risers and their connectors. Some embodiments may be used to apply extruding, twisting and high frequency bending to the testing sample during one testing period, so that the various fatigue properties of the testing sample can be obtained.

Abstract: Apparatus and methods related to riser joint connection are described. For example, some embodiments may contain a central coupler, a plurality of reaction collars, collar stoppers, collar caps, and C-rings, for connecting riser joints.

Abstract: Apparatus and methods related to pipeline freespan support are described. For example, some embodiments may contain an upper structure, which contains at least four legs connected to one another by a number of bracing members, and a number of attachment points through which the upper structure can be lifted, and a lower structure, which contains at least four posts that can be connected to, and disconnected from as needed, the four legs of the upper structure, two spaced mud mats on which the posts stand, and at least two horizontal arms that can be attached to the posts, rotate about the posts, connect to and be locked with the posts on the other mud mat, and be lifted to an appropriate height to provide suitable support at the pipeline freespan location.

Abstract: A hydraulic power unit, a flow meter, and a pressure gauge couple to a first end of a tube under testing. The hydraulic power unit provides an inlet pressure to move a testing fluid through the tube. The flow meter measures a flow rate of the testing fluid and the pressure gauge measures the inlet pressure. An accelerometer measures sound and vibration of the tube. A reservoir couple to an outlet of the tub and an inlet of the hydraulic power unit. The reservoir supplies the testing fluid to the hydraulic power unit and collects the testing fluid from the tube. Hoses interconnect the components in a closed loop that reuses the testing fluid. By analyzing the flow rate, it is determined if an obstruction exist in the tube. By analyzing the inlet pressure and the sound and vibration of the tube, a location of the obstruction is determined.

Abstract: Apparatus and methods related to umbilical buckling testing are described. For example, some embodiments may contain two damps, a plurality of test fittings, one or more pressure gages, a hydraulic cylinder, and a testing platform, and may be used for testing the umbilical buckling behavior and capacity of an umbilical testing sample.