Abstract: A data transmission method and apparatus. The method includes: determining a second weight matrix based on a first weight matrix indicated by a first PMI fed back by a terminal, and then converting the second weight matrix into a non-equal power weight matrix based on a non-equal coefficient matrix, so that a network device can send data with non-equal power on different radio frequency channels. This improves power utilization, implements a better beam side lobe, better mitigates a performance loss caused by inaccurate channel information, and improves data transmission quality.

Abstract: An all-in-one sensing apparatus for transformer bushing tap monitoring includes: a tap lead device connected to a grounding wire of a transformer bushing through a mounting bracket and configured to lead out the grounding wire; a sensor assembly provided on the mounting bracket, connected to an oil taking port of the bushing, and configured to detect a temperature, a pressure, a partial discharge current and a hydrogen content of the bushing and upload the temperature, the pressure, the partial discharge current and the hydrogen content of the bushing; and a power module provided on the mounting bracket, and configured to supply power to the sensor assembly through coil induction, where an output terminal of the tap lead device is connected to the power module, and an output terminal of the power module is connected to the sensor assembly.

Abstract: The present disclosure discloses a method for performing analog CSI feedback in a user equipment, comprising: a. obtaining an analog CSI matrix corresponding to the user equipment, the analog CSI matrix satisfies a condition below: X XH=D, where X denotes the analog CSI matrix, H denotes conjugate transpose of matrix, and D denotes a diagonal matrix; b. obtaining dominated element information corresponding to the analog CSI matrix according to predetermined index information, and transmitting the dominated element information to a base station. The solution according to the present disclosure can reduce feedback overheads to a greater extent, has a high CSI feedback quality, and can reliably implement CSI recovery at the base station side.

Abstract: Embodiments of the present disclosure relate to a method and a device of configuring downlink control information. Specifically, the corresponding demodulation reference signal configuration information is set for three kinds of demodulation reference signal enhancement situations respectively and is indicated by the downlink control information according to the embodiments of the present disclosure. According to one embodiment of the present disclosure, a base station sends the downlink control information to user equipment, the downlink control information including a demodulation reference signal configuration index that indicates the demodulation reference signal configuration information, and the demodulation reference signal configuration information including one item in the demodulation reference signal configuration information set.

Abstract: The present disclosure discloses a method for performing analog CSI feedback in a user equipment, comprising: a. obtaining an analog CSI matrix corresponding to the user equipment, the analog CSI matrix satisfies a condition below: X XH=D, where X denotes the analog CSI matrix, H denotes conjugate transpose of matrix, and D denotes a diagonal matrix; b. obtaining dominated element information corresponding to the analog CSI matrix according to predetermined index information, and transmitting the dominated element information to a base station. The solution according to the present disclosure can reduce feedback overheads to a greater extent, has a high CSI feedback quality, and can reliably implement CSI recovery at the base station side.

Abstract: Embodiments of the present disclosure relate to a method and a device of configuring downlink control information. Specifically, the corresponding demodulation reference signal configuration information is set for three kinds of demodulation reference signal enhancement situations respectively and is indicated by the downlink control information according to the embodiments of the present disclosure. According to one embodiment of the present disclosure, a base station sends the downlink control information to user equipment, the downlink control information including a demodulation reference signal configuration index that indicates the demodulation reference signal configuration information, and the demodulation reference signal configuration information including one item in the demodulation reference signal configuration information set.

Abstract: The present invention provides a reduced DMRS configuration and a method and apparatus for adaptively selecting a DMRS configuration. The method comprises: estimating channel change with respect to a target UE; and selecting one of a normal DMRS configuration or a reduced DMRS configuration for the target UE based on the estimated channel change, wherein, in the normal DMRS configuration, a DMRS symbol is assigned to each time slot, while in the reduced DMRS configuration, a DMRS symbol is assigned to each subframe.