Abstract:
The present invention provides a multi-antenna diversity scheduling method and apparatus. The method includes: transmitting pilot signals through x transmit antennas, where pilot signals on 1 to x−1 transmit antennas are a product of pilot symbols and a phase sequence, the phase sequence changes with at least one of time and frequency, the phase sequence changes more frequently than a user channel, and x is a positive integer greater than or equal to 2; receiving a transient channel quality information (CQI) value returned by a user according to the pilot signals; and according to the CQI value and a scheduling algorithm, scheduling the user to transmit data.
Abstract:
A method and an apparatus for generating a standard cancellation signal includes: setting weight values according to frequency points of a current cell and its neighboring cells; according to the frequency points of the current cell and neighboring cells and the weight values of the frequency points, performing Fourier transform to obtain a corresponding time-domain signal; and performing highest amplitude normalization on the time-domain signal and performing a cyclic shift to obtain a standard cancellation signal. The embodiments generate a standard cancellation signal according to frequency points of the current cell and its neighboring cells, so that the current cell and its neighboring cells share the peak clipping noise, and therefore helping improve the peak clipping performance of the current cell or reduce the EVM distortion.
Abstract:
A voltage regulation apparatus and an overcurrent protection method are disclosed. The voltage regulation apparatus includes a current detection control circuit, a power stage circuit, a voltage input terminal, and a voltage output terminal. The power stage circuit includes at least one transistor. Because a current parameter indicates a load current of the at least one transistor, and a plurality of preset overcurrent protection thresholds are dynamic overcurrent protection thresholds obtained after being preset based on temperature information and the like, after obtaining the current parameter, the current detection control circuit compares the current parameter with the plurality of preset overcurrent protection thresholds, to output a control signal, to implement a limiting operation on the current parameter.
Abstract:
This application relates to the field of communications technologies, and discloses a communication method, a communications apparatus, and a system. The method includes: A terminal device receives first information from a network device, where the first information is used to activate a first secondary cell; and the terminal device performs channel CSI measurement by using a first CSI-RS resource in a process of activating the first secondary cell.
Abstract:
A power management system includes a direct current-direct current DC-DC conversion circuit, a first control circuit, a charging circuit, an input port, and an output port. The input port is configured to receive an input voltage. The output port is configured to supply an output voltage to a load. The DC-DC conversion circuit is configured to charge the output port from the input port, to adjust the output voltage. The first control circuit is configured to: obtain a second feedback voltage of the output voltage from the output port, generate a first control signal based on the second feedback voltage and a second reference signal, and supply the first control signal to the charging circuit. The charging circuit charges the output port from the input port based on the first control signal, to supplementally adjust the output voltage.
Abstract:
A communication method and an apparatus are provided. An example method includes: receiving initially transmitted first data in a first cell based on a correspondence between the first cell and a first hybrid automatic repeat request (HARQ) entity; receiving first indication information, wherein the first indication information indicates a correspondence between a second cell and the first HARQ entity; and receiving retransmitted first data in the second cell based on the correspondence between the second cell and the first HARQ entity.
Abstract:
This application provides a positioning method, apparatus, and device. The method includes: receiving a first positioning reference signal PRS on a first frequency domain resource, where the first frequency domain resource is a frequency domain resource in an unlicensed spectrum; receiving a second PRS on a second frequency domain resource, where the second frequency domain resource is a frequency domain resource in a licensed spectrum; determining, based on the first PRS and the second PRS, a first positioning measurement result corresponding to the first PRS and a second positioning measurement result corresponding to the second PRS; and determining a location of a terminal based on the first positioning measurement result and the second positioning measurement result. The method may be applicable to quickly and accurately determining the location of the terminal without occupying a large quantity of frequency domain resources in the licensed spectrum.
Abstract:
Embodiments of this application provide a method for processing information bits in a wireless communication network. A communication device receives a radio resource control (RRC) signaling, wherein the RRC signaling comprises time window information and time unit format information, wherein the time window information comprises a hybrid automatic repeat request (HARQ) time sequence K1 set, wherein K1 is a time relationship between a time unit of a physical downlink shared channel (PDSCH) and a time unit of a physical uplink control channel (PUCCH), or wherein the K1 is a time relationship between a time unit of a (PDSCH) and a time unit of a physical uplink shared channel (PUSCH). The device determines HARQ feedback information based on the time window information and the time unit format information and sends the HARQ feedback information.
Abstract:
A method and an apparatus for determining an RBG size are provided. In the method, a network device or a terminal determines an RBG size set, where the RBG size set may include one or more possible RBG sizes; and determines a first RBG size included in the RBG size set. The network device allocates a resource to the terminal by using the determined first RBG size. The terminal determines, based on the determined first RBG size, the resource allocated by the network device to the terminal.
Abstract:
This application relates to the field of communication technologies, and provides a communication method and apparatus. The method includes: A terminal device receives first downlink control information DCI from a network device through a first physical downlink control channel PDCCH. The first DCI includes a first time domain resource assignment TDRA indicator field, and the first TDRA indicator field is used to indicate a first time domain resource. The terminal device receives or sends data on a second time domain resource after determining the second time domain resource based on a time domain position of the first PDCCH and the first time domain resource. The first time domain resource is different from the second time domain resource. The method is applied to a time domain resource assignment process of the data scheduling.