Abstract: A communication method and a communication apparatus. A first signal is received from a network device, where the first signal is useable for time synchronization, and the first signal is useable to indicate at least one time unit in a first time period. First data is sent to the network device in a first time unit, where the first time unit is one of the at least one time unit. A terminal device determines the first time unit based on the first signal, and sends the first data in the first time unit.

Abstract: A data transmission method and a communication apparatus are disclosed. According to the method: A first communication apparatus obtains first data and second data, where the first data supports transmission error correction based on a meaning represented by data, and the second data does not support transmission error correction based on a meaning represented by data. The first communication apparatus sends encoded data to a second communication apparatus, where the encoded data is obtained by encoding a transport block, the transport block includes the first data and the second data, a code rate of the first data is a first code rate, a code rate of the second data is a second code rate, and the first code rate is greater than the second code rate. In this way, data transmission efficiency can be improved, and resource waste can be reduced.

Abstract: Embodiments of this application provide a communication method and apparatus and system configured to execute the method, which may include receiving a first message from a second network device by using a first access technology. The first message is configured for paging. The first message includes first information. The first information is configured to indicate a second access technology. Sending a second message by using the second access technology. The second message is configured for paging a terminal device.

Abstract: A data transmission method and a device thereof are provided for tag access. The provided method includes: An answer device receives first signaling sent by a read/write device. The first signaling carries target flag information. The target flag information is used to determine the answer device. First flag information of the answer device matches the target flag information. The answer device determines a first slot, and sends first access information to the read/write device in the first slot. In the provided method, the first slot is determined, to avoid collision of different slots in a same slot in a next round, reduce a collision probability, and improve tag access efficiency.

Abstract: A communication method and apparatus are provided. The method includes: A second communication apparatus (for example, a reader) sends first signaling to indicate a quantity N of random access occasions, where N is a positive integer. In addition, the second communication apparatus further sends second signaling, where the second signaling includes first information, the first information indicates a number of a first random access occasion, and the number of the first random access occasion is less than or equal to N?1. A first communication apparatus (for example, a tag) receives the first signaling and the second signaling, and determines, based on the first information, whether to initiate random access on the first random access occasion.

Abstract: A data transmission method and apparatus, a terminal, a network device, and a storage medium. A network device sends a first signal to a terminal usable to indicate a plurality of sending windows. Based on this, the terminal sends uplink data to the network device based on the sending window indicated by the first signal.

Abstract: This application provides a communication method, apparatus, and system, and belongs to the field of communication technologies. In the method, a network device may send first indication information to a terminal based on service requirements of different services, to indicate the terminal to enter a first sleep mode whose wake-up duration matches a service requirement of the terminal, so that even if the terminal is woken up in the first sleep mode, subsequent data transmission of the terminal can still meet the service requirement of the terminal.

Abstract: Example data scheduling methods and apparatus are described. One example method includes obtaining, by a base station, capability information of user equipment (UE). The first capability information is used to allocate a data scheduling resource for a data transmission of the terminal device, and the data transmission is through a control plane. The base station indicates allocated data scheduling resource to the terminal device. Then, the base station receives, on the data scheduling resource, a radio resource control connection (RRC) establishment complete signaling, where the RRC connection establishment complete signaling includes a non-access stratum (NAS) message, and the NAS message includes data sent by the terminal device.

Abstract: This application discloses a communication method, apparatus, and system, and a storage medium. In this application, an AMF or an LMF triggers a location service, or triggers a location service and a first service. When receiving a location service request and a first service request, an access network side sends a first message to a low-capability terminal, where existing signaling between the low-capability terminal and the access network side may be reused as the first message, and the first message includes positioning configuration information; and the low-capability terminal sends a positioning signal to the access network side based on the positioning configuration information, to position the low-capability terminal.

Abstract: This application provides a random access resource selection method and a communication apparatus. The method includes: A terminal device determines a first random access resource, and sends a message 1 to a network device on the first random access resource. The terminal device is an enhanced reduced capability first-type terminal, and the first random access resource includes a random access resource of a second-type terminal or a random access resource of a third-type terminal. The second-type terminal is a reduced capability terminal, the third-type terminal is a non-reduced capability terminal, the random access resource of the second-type terminal is used by the second-type terminal for random access to the network device, the random access resource of the third-type terminal is used by the third-type terminal for random access to the network device, and the message 1 is used by the terminal device for random access to the network device.

Abstract: This application provides a data transmission method and a communication apparatus. The method includes: sending a first message, where the first message includes identification information of a first terminal device and information about a first carrier corresponding to the first terminal device; and transmitting data with the first terminal device by using the first carrier. Based on the method described in this application, a carrier used for data transmission can be flexibly configured for a terminal device, thereby improving system performance.

Abstract: A measurement method and a related apparatus are disclosed. The method includes: receiving a reference signal; and in an inactive state, performing radio resource management RRM measurement within a first paging time window PTW of an idle-state extended discontinuous reception eDRX cycle and/or a second PTW of an inactive-state eDRX cycle based on the reference signal, where the inactive-state eDRX cycle is greater than 10.24 s.

Abstract: This application provides a paging method and an apparatus. The paging method includes: A terminal device receives extended discontinuous reception (eDRX) configuration information of a first type and eDRX configuration information of a second type, where the eDRX configuration information of the first type includes a first eDRX cycle, the eDRX configuration information of the second type includes a second eDRX cycle, the first eDRX cycle is greater than a first cycle threshold, and the second eDRX cycle is less than or equal to the first cycle threshold; and the terminal device determines, based on a category of an access network device of a cell in which the terminal device is located, to monitor a paging message by using the eDRX configuration information of the first type or monitor a paging message by using the eDRX configuration information of the second type.

Abstract: This application provides a paging method, an apparatus, and a system, to ensure that terminal devices with different wake-up capabilities can all be successfully paged by a network, and may be applied to 5G, 6G, and a future communication system. The method includes: determining first time information, and sending a first signal to a terminal device. The first time information indicates a start time for monitoring a paging occasion. The first signal indicates the terminal device to switch from a sleep state to a wake-up state, and the first signal includes the first time information.

Abstract: This application provides a paging method and a paging apparatus for a terminal. A discontinuous reception cycle of the terminal in an inactive state is an extended discontinuous reception cycle, and the paging method is applied to an access network device. In the technical solutions provided in this application, first information from a core network element is received to determine an identity of a terminal, so as to determine a paging occasion for the terminal. After second information from the core network element is received, access network paging is performed for the terminal on the paging occasion for the terminal.

Abstract: This application relates to the field of communication technologies, and provides a communication method and apparatus. The method includes: A first network device sends at least one reference signal to a second network device, to receive a measurement result of the second network device on the at least one reference signal; and the first network device determines, based on the measurement result, at least one resource for communication with at least one terminal device. According to the method, the first network device determines, by using the measurement result of the second network device on the reference signal, the resource used for communication between the first network device and the terminal device, thereby coordinating network behaviors of different network devices, avoiding a conflict between resources used by different network devices, improving network reliability, and improving communication performance.

Abstract: A communication method and a communication apparatus are disclosed. The communication method includes: A first network device sends a first downlink signal at a first time. The first time is also the time at which a second network device sends a second downlink signal, the first downlink signal includes first information, the second downlink signal includes second information, and a length of the first information is the same as a length of the second information. A first terminal device receives the first downlink signal, and sends a first uplink signal to the first network device at a second time based on the first downlink signal. The communication method provided in this application can improve a coverage capability, and help improve communication efficiency.

Abstract: This application discloses a cell reselection method and apparatus, a system, and a storage medium. A terminal receives measurement indication information from a serving cell, performs neighboring cell measurement based on the measurement indication information, and reselects to a target cell when determining, based on a neighboring cell measurement result, that a reselection criterion is satisfied. The measurement indication information is different from that in an existing cell reselection solution, where the two pieces of information carry different content and are sent in different modes. Therefore, cell reselection of this type of terminals can be accurately implemented by using the solutions in this application.

Abstract: This application provides a cell selection method and a terminal device, and relates to the communication field. In a cell selection process, a requirement on a capability of the terminal device is lowered. The method includes: The terminal device obtains a target signal of a target cell; and when the terminal device continuously successfully obtains a target signals, the terminal device determines the target cell as a cell on which camping is allowed, where a is a positive integer greater than a threshold b, and the cell on which camping is allowed is a cell that meets a cell selection criterion requirement of the terminal device; or when a quantity of target signals continuously successfully obtained by the terminal device is less than or equal to a threshold b, the terminal device determines the target cell as a cell on which camping is not allowed.

Abstract: A communication method and apparatus trigger a terminal device with a low complexity capability to activate a power saving mode and reduce signaling overheads in a power saving configuration process. The method may include the terminal device receiving first information from a network device and activates a power saving mode. The first information is received either as broadcast signal, a multicast signal, or a paging message. The first information includes power saving duration information indicating power saving duration, and duration for which the terminal device is in the power saving mode is less than or equal to the power saving duration.