Abstract: A method includes: receiving, from a network device, an index of a precoding matrix and a quantity of layers for uplink transmission; determining a first target codebook based on the quantity of layers for uplink transmission and a quantity of physical antennas of a communications apparatus, where the first target codebook includes a plurality of first precoding matrices; and determining, based on a first target precoding matrix that corresponds to the index and that is in the plurality of first precoding matrices, a target physical antenna used by the communications apparatus to send uplink information.

Abstract: Disclosed herein is a callee device for detecting a spoofed call from a caller device. Further, the callee device may include a communication device and a processing device. Further, the communication device may be configured for receiving a first connection request from a first caller device of the caller devices and receiving at least one signaling message from a second caller device of the caller devices. Further, the processing device may be configured for initiating a second connection to the second caller device based on the caller identification, determining an inferred call state based on the at least one signaling message, comparing an expected call state of the first caller device and the inferred call state based on the determining of the inferred call state, determining an indication of spoofing based on the comparing, and performing an action based on the determining of the indication of the spoofing.

Abstract: A computer implemented method for decreasing latency in a billing cycle, the method comprising receiving a first charging data report (CDR) including a sent data volume from a vendor and comparing the first CDR to an operator received data volume and when the first CDR does not match the operator received data volume, rejecting the first charging report. The method further comprising providing a second CDR having the operator received data volume to the vendor, receiving a charging data acceptance including a negotiated data volume from the vendor, constructing a publicly verifiable proof of charging based on the charging data acceptance, and sending the publicly verifiable proof of charging to the vendor.

Abstract: An uplink transmission power control method and a user equipment are provided, where the method includes: determining, by a UE, whether uplink channels are simultaneously transmitted over adjacent subframes between multiple carriers; where the adjacent subframes between the multiple carriers are partially overlapped; and timing advance values of the multiple carriers are different; and if uplink channels are simultaneously transmitted over adjacent subframes between multiple carriers, processing, by the user equipment, an uplink channel transmitted over the last symbol on a partially overlapped subframe of another carrier except a carrier having the greatest timing advance value, so that total transmission power of the uplink channels is lower than the maximum transmission power or an interference level of the user equipment.

Abstract: The present disclosure relates to the field of mobile communications technologies, and in particular, to a signal transmission method and an apparatus. In the signal transmission method, user equipment receives, from a base station, first information in a physical downlink control channel, where the first information is used for determining precoding information of a sounding reference signal (SRS). The user equipment determines precoding information of the SRS based on the first information. The user equipment performs, based on the precoding information, precoding on the SRS to generate a precoded signal, and sends the precoded signal to the base station.

Abstract: A computer implemented method for decreasing latency in a billing cycle, the method comprising receiving a first charging data report (CDR) including a sent data volume from a vendor and comparing the first CDR to an operator received data volume and when the first CDR does not match the operator received data volume, rejecting the first charging report. The method further comprising providing a second CDR having the operator received data volume to the vendor, receiving a charging data acceptance including a negotiated data volume from the vendor, constructing a publicly verifiable proof of charging based on the charging data acceptance, and sending the publicly verifiable proof of charging to the vendor.

Abstract: A power configuration method and a related device are provided. The method includes: receiving a first power configuration parameter and a second power configuration parameter from a network device; and when receiving a reference signal and data of a first antenna port group and a reference signal and data of a second antenna port group, determining, based on the first power configuration parameter and the reference signal of the first antenna port group, a power of the data that is from the first antenna port group, and determining, based on the second power configuration parameter and the reference signal of the second antenna port group, a power of the data that is from the second antenna port group, so that data sent by a corresponding antenna port group can be separately demodulated based on an obtained power, thereby improving accuracy for demodulating data of a plurality of antenna port groups.

Abstract: Example quasi co-location information determining methods and apparatus are described. One example method includes determining a quantity X of pieces of quasi co-location QCL information, where X is a positive integer. When it is determined that the quantity X of pieces of QCL information is two, and that DCI corresponding to a current data channel does not indicate QCL information of an antenna port of the data channel, or that an interval between the current data channel and the DCI corresponding to the data channel is less than a threshold, two pieces of default QCL information of the antenna port of the data channel are determined.

Abstract: This application provides a communication method and a communications apparatus and system, to help improve transmission reliability. The method includes: determining a threshold based on a configuration parameter, where the configuration parameter includes one or more of the following: a channel state information process CSI process feature, a feedback feature, a codebook feature, and a resource feature that is of a physical uplink channel; and sending only uplink control information on the physical uplink channel if a resource on the physical uplink channel and the threshold meet a first preset condition; otherwise, sending the uplink control information and uplink data on the physical uplink channel.

Abstract: A communication method, including: receiving a reference signal, where the reference signal is used for channel measurement; sending CSI, where the CSI is used to indicate one or more measured values, and the measured values are used to determine a precoding matrix, or the measured values are a precoding matrix. The measured value is related to a first group of base vectors and a second group of base vectors, or the measured value is related to a Kronecker product of the first group of base vectors and the second group of base vectors; the first group of base vectors includes an inverse discrete Fourier transform OFT vector or a Kronecker product of two IDFT vectors, and the second group of base vectors include a discrete Fourier transform DFT vector.

Abstract: An embodiment of this application provides an antenna port determining method. In a process of determining, based on QCL information and indication information that is used to determine an antenna port number, an antenna port on which downlink data is scheduled, antenna port group information is further introduced, so that the antenna port can be more accurately determined.

Abstract: The present application is applied to the communications field and provides a method for obtaining a location of UE, and an apparatus. The method includes: sending, by a base station, at least one beam, where each beam includes first beam identity information, the first beam identity information is used to uniquely identify the beam, and the beam is received by UE that is in coverage of the beam; receiving, by the base station, second beam identity information sent by the UE, and the second beam identity information is used to indicate a beam on which the UE resides; and communicating, by the base station, with the UE according to the beam which the UE resides second beam identity information sent by the UE. By means of the apparatus and the method of embodiments of the present application, location information of UE can be obtained in a millimetric wave scenario.

Abstract: This application provides a communication method, a communications apparatus, and a communications system. The method includes: receiving first indication information, where the first indication information indicates at least two first parameters, and the at least two first parameters are used for determining at least one of an uplink data channel power, an uplink control channel power, or an uplink reference signal power during dynamic scheduling; and determining a second parameter obtained when a first time element is not used to transmit at least one of an uplink data channel, an uplink control channel, or an uplink reference signal, where the second parameter is at least one of a nominal power, a path loss adjustment factor, a path loss, or a closed-loop power control adjustment value. The method is applicable to power control and/or power headroom reporting in a multi-beam system.

Abstract: Embodiments of the present invention provide a method which includes: a terminal device is configured to send precoding matrix indicator information to a radio access network device, wherein the precoding matrix indicator information is used to indicate a precoding matrix in a codebook, and the codebook comprises information about a quantity of corresponding antenna panels and information about a phase difference between different corresponding antenna panels; and the terminal device receives downlink data from the radio access network device.

Abstract: A communication method and a communications apparatus are provided. The method includes determining, by an access network device, resource configuration information, where the resource configuration information indicates a resource used to transmit control information, and the resource indication uses a unit of a resource block group RBG. The method further includes sending, by the access network device, the resource configuration information to the terminal. The method includes receiving, by the terminal, the resource configuration information from the access network device. The method further includes transmitting, by the terminal, control information by using the resource indicated by the resource configuration information.

Abstract: Embodiments of the present invention provide a method and an apparatus for transmitting broadcast-multicast single-frequency network measurement data, where second measurement data is acquired by preprocessing acquired first measurement data, and the second measurement data is sent to a base station. Because the second measurement data is obtained after the first measurement data is preprocessed, a size of the second measurement data is smaller than that of the first measurement data, thereby reducing a transmission overhead.

Abstract: Embodiments of the present invention disclose a method, an apparatus, and a system for transmitting control information. The method includes: determining enhanced resource element group numbers in resource blocks, and determining, according to the resource element group numbers, positions of resource elements corresponding to enhanced resource element groups; interleaving the enhanced resource element group numbers, and determining an enhanced control channel element; determining, according to the enhanced control channel element and the positions of the resource elements corresponding to the enhanced resource element groups, positions of resource elements corresponding to the enhanced control channel element; and transmitting corresponding control information on the positions of the resource elements corresponding to the control channel element. The present invention alleviates a problem that channel frequency diversity is poor, and lowers the probability of loss of information of a terminal device.

Abstract: A physical downlink control channel transmission method is provided, and the method is used by a wireless network device to send N signal sets, where each signal set is used to transmit control information of one or more terminals, a signal in the signal set includes a PDCCH or a PDCCH and a PCFICH. The method includes: sending, by the wireless network device, each signal set to the terminal on a resource that can be occupied by the signal set, where the wireless network device performs sending processing on each signal set, and the sending processing includes at least one of multiplexing, scrambling, modulation, interleaving, or resource mapping. Interference between signal sets may be canceled, PCFICH and PDCCH transmission reliability may be improved, and the terminal receives the PCFICH and the PDCCH on a resource of a received signal set, to reduce complexity of detecting a signal by the terminal.

Abstract: A data transmission method and apparatus are provided. The method includes: receiving control information from a network side device, wherein the control information comprises transmission parameter indication information, wherein the transmission parameter indication information is used to indicate a quantity of transport layers for at least two codewords and port numbers of ports for the at least two codewords; and determining, based on the transmission parameter indication information, a quantity of transport layers for at least two codewords and port numbers of ports for the at least two codewords, wherein ports used by different codewords of the at least two codewords are non-quasi-co-location, and ports used by one codeword of the at least two codewords are quasi-co-location when the codeword has more than one port.

Abstract: Embodiments of the present disclosure provide a method for receiving a service from a wireless network device. A terminal device receives frequency band information of N frequency ranges of a cell, and receives characteristic information of radio interface technologies respectively supported in each of the N frequency ranges. N is greater than or equal to 2, and a first radio interface technology is supported in a first frequency range of the N frequency ranges. The terminal device also receives information of a correspondence between a data radio bearer (DRB) and the first radio interface technology. The terminal device receives the service on the DRB within the first frequency range using the first radio interface technology. The characteristic information of radio interface technologies respectively supported in each of the N frequency ranges includes frame structure information.