Abstract: A terminal device receives first configuration information from a non-terrestrial network device, where the first configuration information includes a first condition; the terminal device determines location information and/or time information; and if it is determined, based on the location information and/or the time information, that at least one item of the first condition is met, the terminal device attempts to measure a reference signal in a coverage area of a terrestrial network device.

Abstract: The present disclosure relates to timing advance indication methods, communication apparatuses, and storage medium. In one example method, a first device determines a quantity of extended bits and a location of the extended bit of a timing advance (TA) instruction based on a subcarrier spacing of a second device. The first device sends the TA instruction to the second device, where the TA instruction includes the extended bit, and a quantity of bits of the TA instruction is greater than 12.

Abstract: Example satellite communication methods and example related devices are provided. One example satellite communication method includes generating a random access preamble sequence, where the random access preamble sequence includes a cyclic prefix, a sequence part, and a guard interval, the sequence part is obtained by performing frequency domain resource mapping and time-frequency transformation on a frequency domain sequence, and the frequency domain sequence is obtained based on a Zadoff-Chu (ZC) sequence and a mask sequence. The random access preamble sequence can then be output.

Abstract: This application provides a method and an apparatus for updating a timing offset, and is particularly applicable to an NTN network such as satellite communication. The terminal side method includes: A terminal receives a timing offset difference ?Koffset, and updates a timing offset based on the ?Koffset to obtain an updated timing offset. The network side method includes: A network device determines a timing offset difference ?Koffset, and sends the ?Koffset to a terminal device, wherein the ?Koffset is used for the terminal device to update a timing offset.

Abstract: Embodiments of this application provide a parameter transmission method and an apparatus, and relate to the field of wireless communication technologies. One example method includes: determining first information; and sending the first information to a first communication apparatus, wherein the first information comprises a timing offset, the timing offset is associated with a delay of activation of configuration information sent by the second communication apparatus, and the timing offset is associated with a delaying duration of starting of a random access response (RAR) window, wherein the RAR window is associated with a physical downlink control channel (PDCCH) for receiving a random access response (RAR) by the first communication apparatus.

Abstract: Embodiments of the present disclosure provide a wireless communication method and an apparatus. The method includes: A first communication apparatus receives first information, where the first information indicates a determining threshold of a parameter in a first parameter set, and the first parameter set includes at least one of the following parameters: location information, delay information, a timing advance rate, a rate of the timing advance rate, a Doppler value, a Doppler rate, or remaining coverage time. The first communication apparatus determines, based on the first information, whether an access condition is met, and performs random access when the access condition is met.

Abstract: A communication method and apparatus are provided. The method includes: A network device determines first information, and sends the first information. The first information includes information about at least one region served by a first beam or a first cell. A communication apparatus receives the first information, and performs at least one of access control, camping control, or measurement control based on location information of the communication apparatus and the first information. Based on this solution, because the region is fixed relative to the earth, the network device may send information about a region served by a beam or a cell in either an earth-moving mode or an earth-fixed mode, to indicate a service region of the beam or the cell.

Abstract: Embodiments of this specification disclose a method and apparatus for detecting intrusion, a storage medium and a device. In this method, a pointcut is set in a dynamic link library of a JVM, a corresponding aspect is initiated at an operating system kernel layer. When the aspect is triggered, the operating system kernel queries, by stack information, a method that is invoked in the dynamic link library by a target event triggering the aspect, and accordingly detects whether the target event is an intrusion event. Since in this method, an intrusion event is detected by a system layer, a system invocation generated by the intrusion can be sensed, even if an intruder directly intruded from a JDWP protocol layer, thereby effectively defending against the event.

Abstract: Example frequency compensation methods and apparatus are described. One example method includes determining first information and sending the first information by a network device to a terminal device, where the first information indicates a frequency compensation manner of an uplink signal of the terminal device or the first information indicates a configuration parameter of the terminal device. The terminal device receives the first information, and determines, based on the first information, the frequency compensation manner to be used to send the uplink signal. The terminal device performs frequency compensation for the uplink signal based on the frequency compensation manner.

Abstract: In a communication method, to meet a requirement of a positioning service, a first communication apparatus obtains data to be processed, and determines a first frame structure that includes a communication time period and a positioning time period. A first switching time period is included between the communication time period and the positioning time period, a 1st time-domain symbol occupied by the first switching time period is consecutive to a last time-domain symbol occupied by the communication time period, and a last time-domain symbol occupied by the first switching time is consecutive to a 1st time-domain symbol occupied by the positioning time period. The first communication apparatus then processes the data based on the first frame structure.

Abstract: A communication method and apparatus. An example method includes a network device sending system information to the terminal device, where the system information includes a location parameter of an NTN device, and where the system information is used to indicate time information of the location parameter.

Abstract: Embodiments of this application provide a parameter transmission method and an apparatus, and relate to the field of wireless communication technologies. In the method, the terminal device may receive first information. The first information may include a time parameter. The time parameter may be used to determine a timing offset. The timing offset includes a second timing offset, and the second timing offset indicates a delay of activation of configuration information. The terminal device determines a delay start duration of a random access response (RAR) window based on the second timing offset.

Abstract: The technology of this application relates to a random access method, applied to the communication field. The method includes a terminal device sends, to a network device, a first message used to establish a wireless connection, the terminal device receives, a connection response sent by the network device, where the connection response includes information about a first polarization parameter, and when accessing the network device based on the connection response, the terminal device determines, based on the information about the first polarization parameter included in the connection response, whether the terminal device is qualified to access the network device. A dimension, namely, a polarization parameter, is introduced into a random access procedure, so that a preamble capacity is increased, a problem that the network device cannot identify a colliding terminal device is alleviated, and efficiency of establishing a communication connection between the terminal device and the network device is improved.

Abstract: A communication method and apparatus are provided, to reduce uplink signal interference caused by a PCI modulo conflict, thereby improving communication performance. The method includes: A second device sends first information, where the first information is used to obtain a virtual PCI of a first cell, and the virtual PCI is different from a PCI of the first cell; a first device receives the first information from the second device; the first device obtains the virtual PCI of the first cell based on the first information; the first device sends a first reference signal based on the virtual PCI; and the second device receives the first reference signal from the first device.

Abstract: Embodiments of this application provide a wireless communication method and an apparatus. The method includes: A first communication apparatus receives first information, where the first information indicates a determining threshold of a parameter in a first parameter set, and the first parameter set includes at least one of the following parameters: location information, delay information, a timing advance rate, a rate of the timing advance rate, a Doppler value, a Doppler rate, and remaining coverage time. The first communication apparatus determines, based on the first information, whether an access condition is met, and performs random access when the access condition is met. This avoids a random access failure in a current cell and re-access in a next cell due to random access performed when the condition is not met.