Abstract: A communication method and apparatus are provided. The method includes: A first node determines a sending time point of a second PDCP PDU based on first sending status information from a second node, where the first sending status information is associated with a first PDCP PDU, so that the first node can adjust the sending time point of the second PDCP PDU based on a sending situation of the first PDCP PDU, to avoid too many packet losses caused when a MAC PDU of the second PDCP PDU is not completely sent in a timely manner due to splitting and concatenation, so as to improve reliability of a synchronous data transmission mechanism in an NR system, and improve resource utilization.

Abstract: A terminal device determines that local first system information is abnormal in the case of any of the following: a quantity of times of sending first signaling is greater than or equal to a first preset threshold within first preset duration; a time length in which a first service is unavailable is greater than or equal to a second preset threshold; a change trend of a tag value of a same system information block is abnormal; or a quantity of changes in a tag value of a same system information block is greater than or equal to a third preset threshold within second preset duration. The terminal device receives, from an access network device, second system information that is used to update the local first system information. Therefore, the terminal device can determine as soon as possible whether the terminal device is being attacked by a rogue base station.

Abstract: A communication method and a communication apparatus. In the method, a terminal device can obtain first resource information according to a preset rule or from a network device, where the first resource information includes at least one of frequency domain position information, a cyclic prefix, or a subcarrier spacing; and receive a multicast broadcast service in a radio access control (RRC) idle state or an RRC inactive state based on the first resource information. According to the method, a resource used when the terminal device receives the multicast broadcast service in the RRC idle state or the RRC inactive state can be determined, so that the terminal device can receive the multicast broadcast service in the RRC idle state or the RRC inactive state.

Abstract: A paging method includes: determining, by an access network device or a core network device, a paging cycle based on type information of a terminal, and sending first information based on the paging cycle, where the first information is used to page the terminal. The paging cycle is determined as 2.56 s according to the type information indicating that the terminal is REDCAP UE, so that the REDCAP UE can perform monitoring in the paging cycle of 2.56 s, receive emergency broadcast in time, and obtain energy saving gains. In some situations, a paging method includes receiving first information comprising information of a paging cycle for a terminal, and determining, according to type information of a camped cell on which the terminal is currently camped, whether to use PTW in monitoring paging in accordance with the first information.

Abstract: A communication method and apparatus are disclosed. The method includes determining a first paging hyperframe (PH) based on a first extended discontinuous reception (eDRX) cycle, and determining a second PH based on a second eDRX cycle, where the first PH includes a first paging time window (PTW), and the second PH includes a second PTW; and monitoring a paging occasion (PO) in the first PTW and the second PTW, where if the first PH and the second PH are a same PH, a start position of the first PTW in the first PH is determined based on the first eDRX cycle and an offset.

Abstract: System information block transmission methods and communication apparatus are provided to resolve a problem that a terminal device cannot receive, on an active bandwidth part, a system information block broadcast by a network device. A network device sends a system information block to a terminal device through a first bandwidth part. When determining that a first moment satisfies a preset condition, the network device sends the system information block to the terminal device through a second bandwidth part, where the system information block is included in first dedicated signaling, and configuration information for sending the system information block by the network device is not configured on the second bandwidth part.

Abstract: An artificial intelligence-based networking method for fog radio access networks, which includes: a central computing logic module receives reported data which includes measurement report data from user terminals, wireless transmission data from base stations, and operation and maintenance data from a radio access network. Based on these reported data and proper machine learning algorithms, the central computing logic module configures an operating mode of a radio access network that matches user behavior, service attributes, and radio access network performance indicators. According to the operating mode, an edge computing logic module determines whether to optimize a current configuration of an edge communication entity and allocation of radio resources, computing resources, and caching resources. With proper machine learning algorithms, the proposed networking method meets various service requirements.

Abstract: An artificial intelligence-based networking method for fog radio access networks, which includes: a central computing logic module receives reported data which includes measurement report data from user terminals, wireless transmission data from base stations, and operation and maintenance data from a radio access network. Based on these reported data and proper machine learning algorithms, the central computing logic module configures an operating mode of a radio access network that matches user behavior, service attributes, and radio access network performance indicators. According to the operating mode, an edge computing logic module determines whether to optimize a current configuration of an edge communication entity and allocation of radio resources, computing resources, and caching resources. With proper machine learning algorithms, the proposed networking method meets various service requirements.