Abstract: In a method, a first band combination set reported by a terminal device may include a first band combination and a second band combination, the first band combination is a fallback band combination that has a same capability as the second band combination, and the first band combination and the second band combination correspond to different radio access technology types.

Abstract: A pyrimidine or pyridine derivative having a structure represented by formula (I), a preparation method therefor, a pharmaceutical composition containing same, a use thereof as an EGFR inhibitor, and a use thereof in the preparation of a drug for treating and/or preventing cancer, tumors, or metastatic diseases associated at least in part with EGFR exon 20 insertions, deletions, or other mutations, especially a use thereof in the preparation of a drug for treating and/or preventing hyperproliferative diseases and the induction of cell death disorders.

Abstract: Provided are an acid salt of a crystalline CSF-1R inhibitor, and a preparation method therefor and the use thereof, wherein the CSF-1R inhibitor is the compound 3,3-dimethyl-N-(6-methyl-5-((2-(1-methyl-iH-pyrazol-4-yl)pyridin-4-yl)oxy)pyridin-2-yl)-2-oxopyrrolidine-1-carboxamide having the structure of formula (I). The crystalline acid salt compound can greatly improve the physicochemical properties such as solubility, hygroscopicity and chemical stability of the compound of formula (I) in a free state, and meet the requirements for industrial production and clinical drug preparation development. The crystalline acid salt compound can be widely used in the preparation of a drug for treating cancers, tumors, autoimmune diseases, metabolic diseases or metastatic diseases.

Abstract: A method for implementing a sensing service includes determining, by a first network device, a first condition, where the first condition indicates a condition that a target terminal used for performing sensing measurement needs to meet; sending, by the first network device to a terminal, a second message that carries the first condition; and receiving, by the first network device, a third message from the terminal, and determining the target terminal based on the third message. The terminal is a terminal that meets the first condition, and the third message includes indication information indicating whether the terminal supports or expects to perform the sensing measurement.

Abstract: This application provides a communication method and apparatus. The method includes: a terminal device receives conditional handover configuration information from a first network device, where the configuration information is used to configure a trigger condition of a conditional handover, and the first network device is a network device to which a serving cell currently accessed by the terminal device belongs. The terminal device determines a first target cell based on the conditional handover configuration information, where the first target cell is a cell in at least one candidate target cell that satisfies the trigger condition.

Abstract: A source base station receives a first data packet from a core network device; a target base station receives a second data packet from the core network device, where the second data packet is a duplicate of the first data packet, and the first data packet and the second data packet each include a first index; the source base station sends first indication information to the target base station, where the first indication information indicates a mapping relationship between the first index and a second index; the source base station sends a third data packet to a user equipment UE in response to the first data packet; the target base station sends a fourth data packet to the UE in response to the second data packet, where the third data packet and the fourth data packet each include the second index.

Abstract: This application provides a communication method and apparatus, and a system, to protect security and user privacy in a data transmission process. After determining to establish a radio resource control (RRC) connection in anonymous mode, a terminal device sends a request to an access network device, to request to establish the RRC connection in anonymous mode, so that the access network device establishes the RRC connection in anonymous mode to the terminal device. The solutions in this application may be applied to a communications system, for example, may be applied to a 5th generation 5G network.

Abstract: This application belongs to the field of communication technologies, and discloses a sensing method, a sensing apparatus, and a communication device. The method in an embodiment of this application includes: performing, by a first terminal, sensing measurement to obtain a sensing measurement result, where the first terminal is a terminal in an idle state or an inactive state; and reporting, by the first terminal, the sensing measurement result.

Abstract: A method for implementing a sensing service includes obtaining, by a first access network device, sensing indication information related to a terminal, where the first access network device is an access network device serving the terminal; receiving, by the first access network device, a sensing measurement request message. The sensing measurement request message is a non-terminal associated message; and determining, by the first access network device according to the sensing indication information, a terminal used for executing a sensing task.

Abstract: The present disclosure relates to communication methods and apparatus. On one example method, a terminal device obtains measurement results of N cells, where the N cells include M non-public network cells, where N is an integer greater than or equal to 1, and where M is an integer greater than or equal to 0. The terminal device determines, based on the measurement results of the N cells and measurement result offset values corresponding to H first cells in the N cells, a target cell on which the terminal device is to camp, where H is an integer greater than or equal to 1, and where H?N.

Abstract: This application provides a transmission method and a data transmission apparatus, so as to avoid out-of-order of data packets.

Abstract: A handover method, and a terminal and a network-side device. The handover method of the embodiments of the present application includes: a first access network device acquiring first information, where the first information includes sensing measurement indication information and/or sensing assisted handover information, the sensing measurement indication information is used for indicating that a terminal is executing a sensing measurement task, the sensing assisted handover information is used for assisting the first access network device with performing cell handover for the terminal, and the first access network device is a service access network device for the terminal; and the first access network device performing cell handover on the basis of the sensing measurement indication information and/or the sensing assisted handover information.

Abstract: This application discloses an uplink positioning reference signal SRS configuration method and apparatus, and a network-side device. The uplink positioning SRS configuration method of embodiments of this application includes: sending, by a first network-side device, uplink positioning SRS configuration related information to a second network-side device in a process of changing a serving cell or camp-on cell of a terminal; where the uplink positioning SRS configuration related information is used to assist the second network-side device to configure an uplink positioning SRS for the terminal.

Abstract: Example cell measurement methods and apparatus are described. One example method includes obtaining, by a first network device, a first paging parameter of a cell served by a second network device. The first paging parameter is used to indicate a first time domain position at which a terminal device monitors a paging message from the second network device. The first network device sends a reference signal based on the first paging parameter. A time domain position of the reference signal is determined based on the first time domain position.

Abstract: A communication method and apparatus to improve communication efficiency. The method includes: determining downlink signal quality; determining a downlink coverage enhancement CE level of a terminal device based on the downlink signal quality and a first CE level quality threshold; and determining first uplink CE level of the terminal device based on the downlink signal quality and a second CE level quality threshold, where the first CE level quality threshold is different from the second CE level quality threshold.

Abstract: This application provides a communication method, a network device, and a terminal. The communication method includes: determining, by a first network device, at least one candidate target cell and first configuration information, where the first configuration information is used to trigger a terminal to determine one of the at least one candidate target cell as a to-be-handed-over-to cell; and sending, by the first network device, a first message to the terminal, where the first message includes first cell indication information and the first configuration information, and the first cell indication information is used to indicate the at least one candidate target cell.

Abstract: Embodiments of this application provide an information transmission method, an apparatus, and a system. A first network device sends, to a terminal device, conditional handover configuration information that includes information about candidate cells and a handover trigger condition; after receiving the conditional handover configuration information and performing a conditional handover, the terminal device sends, to a second network device, a first failure cause value corresponding to a candidate target cell and/or a second failure cause value corresponding to a to-be-determined cell during the conditional handover; and the second network device receives the first failure cause value and/or the second failure cause value from the terminal device, and sends the first failure cause value and/or the second failure cause value to the first network device.

Abstract: A positioning method includes in a case that a terminal completes cell reselection or camped cell handover during sending of an uplink reference signal in an idle state or an inactive state, performing, by the terminal, a first behavior, where the first behavior is related to the sending, releasing, or updating of the uplink reference signal, and the uplink reference signal comprises an uplink positioning reference signal and/or an uplink sensing signal.

Abstract: Example measurement methods and apparatus are described. One example method includes obtaining a timer by a terminal device. The terminal device obtains two or more measurement configurations, where each of two or more measurement configurations includes a validity area and a measurement frequency corresponding to the validity area, and the validity area includes one or more cells. The terminal device measures, based on the measurement configuration, a measurement frequency corresponding to a validity area that matches a cell on which the terminal device camps, where the terminal device is in an idle state or in an inactive state, and the timer is not stopped and has not expired.

Abstract: Embodiments of this application disclose a minimization of drive tests (MDT) configuration method, to improve accuracy of a cell measurement result. The method in the embodiments of this application includes: receiving, by a base station, MDT configuration information sent by a core network or an operation, administration, and maintenance (OAM) network management system, where the MDT configuration information includes first beam configuration information; and sending, by the base station, an MDT measurement configuration message to UE based on the MDT configuration information, where the MDT measurement configuration message includes second beam configuration information, and the second beam configuration information is the same as the first beam configuration information or the second beam configuration information is configuration information obtained after the first beam configuration information is processed.