Abstract: A method includes: determining, by a first terminal device, a first timing of a first measurement signal used by a second terminal device for measurement, where a first network device serving the first terminal device is different from a network device serving the second terminal device; determining, by the first terminal device, a second timing of a second measurement signal used by the first network device for measurement; and sending, by the first terminal device, the first measurement signal and the second measurement signal based on the first timing and the second timing respectively.

Abstract: A signal strength measurement method is disclosed, the method including: receiving first indication information, where the first indication information includes first sub-information, second sub-information, and third sub-information, the first sub-information indicates a measurement period for measurement, the third sub-information is used to indicate an offset of a start position of a second time unit for measurement relative to a start position of the measurement period, and the second sub-information is used to indicate an offset of a start position of a first time unit for measurement in the measurement period relative to the start position of the second time unit for measurement; determining a measurement resource based on the first indication information; performing signal strength measurement on a signal on the measurement resource; and sending a measurement result.

Abstract: This application relates to the mobile communications field, and in particular, to a random access technology in a wireless communications system. This application provides a method for receiving a random access preamble sequence, an apparatus, and a system. In this solution, a device obtains a cyclic shift value that satisfies a high-speed movement scenario and receives a random access preamble sequence corresponding to the cyclic shift value.

Abstract: An information receiving method, an information sending method, and a device are provided. Under these methods, a timing adjustment amount can be determined by a first access network device. The timing adjustment amount is an adjustment amount between a first timing at which the first access network device sends a first downlink signal to a first terminal device on a first frequency band and a second timing at which the first access network device sends a second downlink signal to the first terminal device on a second frequency band. The first frequency band and the second frequency band are paired frequency bands. First indication information can be sent, by the first access network device, to the first terminal device. The first indication information indicates the timing adjustment amount.

Abstract: This application provides embodiments of an uplink power control method and an apparatus, so that impact of interference between network devices on uplink signal transmission can be reduced, thereby helping increase a probability of successfully receiving an uplink signal by a network device. The method includes: determining, by a network device, an uplink power adjustment parameter value of a terminal device, where the uplink power adjustment parameter value is related to cross-link interference received by the network device; and sending, by the network device, information about the uplink power adjustment parameter value to the terminal device.

Abstract: Embodiments of this disclosure provide a method for sending information, a method for receiving information, a network device, and a terminal device. The method includes: determining, by a first network device, first indication information, where the first indication information is used to indicate a first time segment and N second time segments, the first time segment is used by a first terminal device to send a first measurement signal to at least one second terminal device in coverage of N second network devices, and a kth second time segment of the N second time segments is used by the first terminal device to receive a second measurement signal from a second terminal device in the coverage of a kth second network device of the N second network devices, where N is a positive integer, and k=1, 2, . . . , and N; and sending, by the first network device, the first indication information to the first terminal device.

Abstract: A method for wireless communication and an apparatus are provided, comprising: determining location information, wherein the location information indicating a quantity of M subcarrier spacings between a second location of a physical resource block (PRB) in a system common PRB grid and a first location in a synchronization signal block, the system common PRB grid having a first subcarrier spacing, the first location being a beginning subcarrier of the synchronization signal block and the first location overlapping with the PRB, M is a value of a preset value set, and the preset value set is {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23}; sending the location information via a broadcast message.

Abstract: A reference signal sending method, a reference signal receiving method, and an apparatus are provided. A first network device determines a first resource. The first network device generates a reference signal corresponding to the first resource. The reference signal includes M parts, and all of the M parts are the same. The first resource does not carry a cyclic postfix of the reference signal. Alternatively, the first resource carries a cyclic prefix of the reference signal and the cyclic prefix corresponding to the reference signal is located only at the start of the 1st part in the M parts. M is a positive integer. The first network device sends the reference signal to a second network device on the first resource.

Abstract: In a communication method disclosed in this application, a terminal device receives, from a network device, a synchronization signal and a system information signal that are generated based on a first subcarrier spacing. The terminal device sends a random access request signal to the network device based on a second subcarrier spacing and a first transmission resource, where a type of the first transmission resource corresponds to a third subcarrier spacing and/or a fourth subcarrier spacing. The terminal device further receives a random access response signal generated based on the fourth subcarrier spacing, where the random access response signal is used for instructing the terminal device to access a network or the random access response signal is used for instructing the terminal device to prepare to access network. Thereby, cell search for and random access to a network using a plurality of subcarrier spacings can be supported.

Abstract: Embodiments of this application disclose a communications method and apparatus. The method may include: determining, by a terminal device, a first signal to be sent on a first uplink carrier in a first time period, and determining a second signal to be sent on a second uplink carrier in a second time period, where when a first reference signal configuration manner is used for the second signal, a priority of the second signal is higher than a priority of the first signal, and the terminal device determines that a first symbol in the first signal is to be discarded; and the terminal device sends another symbol in the first signal other than the first symbol and the second signal to a network device, where the first time period and the second time period are adjacent in terms of time, and the second signal is a PUSCH.

Abstract: A random access preamble sequence generation method and user equipment are provided. The method includes the following: when receiving first notification signaling sent by a base station, determining, by UE, to calculate a cyclic shift value by using a first solution; obtaining a first logical root sequence number, and determining a root sequence based on the first logical root sequence number; and generating a random access preamble sequence based on the root sequence and the cyclic shift value, where the first solution is a solution of calculating the cyclic shift value when a Doppler shift of the UE is less than a first preset value and greater than a second preset value, the first preset value is less than twice of a physical random access channel (PRACH) subcarrier spacing, the second preset value is greater than the PRACH subcarrier spacing.

Abstract: This application provides a reference signal sending method, a reference signal receiving method, an apparatus, and a device, to provide a reference signal sending or receiving mechanism. A first network device determines at least one frequency reference point. The first network device generates a reference signal based on the at least one frequency reference point, and sends the reference signal in the first frequency band. A frequency reference point is determined based on a frequency band. In this case, both the first network device that sends the reference signal and a second network device that receives the reference signal may determine the frequency reference point based on the frequency band, and the two network devices may determine a same reference signal at a same frequency domain location, so that the reference signal sent by the first network device can be correctly detected by the second network device.

Abstract: Embodiments provide a method for generating a random access channel ZC sequence, and an apparatus. A method for generating a random access channel ZC sequence includes: generating, by a base station, notification signaling, where the notification signaling instructs user equipment (UE) to generate a random access ZC sequence by using a second restricted set in a random access set; and sending, by the base station, the notification signaling to the UE, so that the UE generates the random access ZC sequence by using the second restricted set, where the random access set includes an unrestricted set, a first restricted set, and the second restricted set; and the second restricted set is a random access set that the UE needs to use when a Doppler frequency shift of the UE is greater than or equal to a first predetermined value.

Abstract: Data channel sending and receiving methods, and an apparatus are disclosed. The network device sends indication information to the terminal, where the indication information indicates that the terminal needs to detect data channel puncturing information. The network device sends the data channel puncturing information to the terminal. The network device sends a data channel to the terminal, where the data channel is punctured at a resource location.

Abstract: This application relates to the mobile communications field, and in particular, to a random access technology in a wireless communications system. This application provides a method for sending a random access preamble sequence, an apparatus, and a system. In this solution, a terminal device obtains a cyclic shift value that satisfies a high-speed movement scenario and sends a random access preamble sequence corresponding to the cyclic shift value. Impact brought by the high-speed movement scenario is considered when the random access preamble sequence is determined, thereby avoiding interference between terminal devices in the high-speed scenario.

Abstract: A method for scheduling transmission in a wireless communications system, and a device are disclosed, to resolve a technical problem that uplink transmission in a cell in which the uplink transmission is performed may be interfered with by downlink transmission. The method includes: determining, by a network device, a priority of each transmission time interval used for first-direction transmission in a transmission time interval set, where the first-direction transmission is along a downlink direction from the network device to user equipment or along an uplink direction from the user equipment to the network device; selecting, by the network device, for a first cell, at least one transmission time interval from the transmission time interval set based on the priority; and performing, by the network device, in the first cell, the first-direction transmission with the user equipment by using the selected at least one transmission time interval.

Abstract: This application relates to the field of communications technologies, and discloses a communication method and a communications apparatus. A terminal device receives first indication information from a network device, where the first indication information indicates an available frequency domain resource, in a bandwidth, which can be used by the terminal device to communicate with the network device. The bandwidth is one carrier bandwidth or one carrier bandwidth part. The available frequency domain resource includes a plurality of non-contiguous frequency domain resource groups, and each frequency domain resource group includes one or more contiguous frequency domain resource blocks. The terminal device determines the available frequency domain resource in the bandwidth based on the first indication information.

Abstract: The reference signal sending method includes: determining, by a first sending device, a first reference signal and a first code resource, where the first code resource is orthogonal to a second code resource, the second code resource is used to transmit a second reference signal; and sending, by the first sending device, the first reference signal by using the first code resource, where the first reference signal is carried on at least one first time-frequency resource group, a value of a quantity of resource elements (REs) occupied by each of the at least one first time-frequency resource group is the same as a value of a length of the first code resource, and the first reference signal and the second reference signal are multiplexed on a time-frequency resource occupied by the at least one first time-frequency resource group, based on the first code resource and the second code resource.

Abstract: A method includes: receiving, by a first terminal device, a first downlink control channel on a third time-frequency resource; and based on the first downlink control channel and on a first time-frequency resource, sending, by the first terminal device, a first uplink message or receiving a first downlink message, where transmission directions of the first uplink message and a second downlink message are different, and the second downlink message is a message that the network device schedules a second terminal device to receive on a second time-frequency resource; transmission directions of the first downlink message and a second uplink message are different, and the second uplink message is a message that the network device schedules the second terminal device to send on the second time-frequency resource; and the first time-frequency resource and the second time-frequency resource include a same time domain resource and a same frequency domain resource.

Abstract: A signal receiving method, an apparatus and a communication system. The network device determines a subcarrier location of a to-be-sent first signal and a subcarrier location of a to-be-sent second signal, where subcarriers occupied by the first signal are continuous subcarriers in a first group of resource elements, subcarriers occupied by the second signal are continuous subcarriers in a second group of resource elements, a quantity of the subcarriers occupied by the first signal is the same as a quantity of the subcarriers occupied by the second signal, and a subcarrier spacing in the first group of resource elements is different from a subcarrier spacing in the second group of resource elements, the first signal and the second signal are primary synchronization signals. The network device sends the first signal to the terminal device and sends the second signal to the terminal device or other terminal device.