This application discloses a service data processing method and apparatus, to resolve a problem of low bandwidth utilization in the conventional technology. A dynamic framing method is used. When a transmission rate of an OTN data frame increases, a length of a payload area constantly increases, while a length of an overhead area does not increase. In other words, in OTN data frames at different transmission rates, lengths of overhead areas are fixed. As the transmission rates of the OTN data frames increase, lengths of payload areas constantly increase. In this way, when the rate increases, overheads do not occupy more bandwidths, thereby improving bandwidth utilization.

A communication method, a communications device, and a storage medium, where, in the method, a first communications device receives, by using a link corresponding to a first FlexE group, first indication information sent by a second communications device, where for a slot in N slots of the first FlexE group, the first indication information is used to indicate that the second communications device has assigned a FlexE client to the slot, or used to indicate that the second communications device has not assigned a FlexE client to the slot, and the first communications device assigns the FlexE client to the slot in the N slots of the first FlexE group, or cancels, based on the first indication information, the FlexE client that has been assigned to the slot.

A method includes: generating indication information, where the indication information is used to indicate a resource allocation table corresponding to a first data unit in the plurality of data units; sending the indication information in a timeslot previous to a timeslot used to send the first data unit; and sending the plurality of data units, where a resource allocation table corresponding to each data unit is selected from a plurality of resource allocation tables in a cyclic manner, and a cyclically initial resource allocation table is the resource allocation table indicated by the indication information.

The present application provides data transmitting and receiving methods and devices for an Optical Transport Network (OTN). The service transmitting method for the OTN includes that: Optical Data Unit (ODU) services are mapped into cells of a payload area of an OTN interface frame, the payload area including N cells with a fixed size, one cell being used for carrying one ODU service and N being an integer larger than or equal to 1; and the OTN interface frame is encapsulated and transmitted.

A communication unit includes a communication circuit section that transmits transmission data to a communicated unit in each time-segment configured by a predetermined division number of time slots. The communication unit further includes a measuring section that, in a case where the time-segment includes a predetermined number or more of first time slots available for transmission of the transmission data and a predetermined number or less of second time slots not used for the transmission of the transmission data, measures a first signal value in a period of one or more of the first time slots and a second signal value in a period of one or more of the second time slots.

The apparatus may be a base station. The apparatus processes a first group of synchronization signals. The apparatus processes a second group of synchronization signals. The apparatus performs a first transmission by transmitting the processed first group of the synchronization signals in a first synchronization subframe. The apparatus performs a second transmission by transmitting the processed second group of the synchronization signals in a second synchronization subframe.

The apparatus may be a base station. The apparatus processes a plurality of synchronization signals by performing time-division multiplexing (TDM) of at least one of a plurality of first synchronization signals of different types and at least one of the plurality of second synchronization signals of different types, the plurality of synchronization signals including the plurality of first synchronization signals and the plurality of second synchronization signals. The apparatus transmits the processed synchronization signals to a user equipment (UE).

A user equipment (UE) receives a plurality of synchronization signals, the plurality of synchronization signals including a plurality of first synchronization signals of different types and a plurality of second synchronization signals of different types. Reception of the plurality of synchronization signals comprises: reception of a first transmission by receiving a first group of the plurality of synchronization signals; and reception of one or more repeat transmissions of the first transmission, wherein each of the one or more repeat transmissions of the first transmission includes a repetition of the first transmission, wherein the first transmission and the one or more repeat transmissions of the first transmission are received within a first synchronization subframe. The UE demultiplexes the plurality of synchronization signals by performing time-division demultiplexing of at least one of the plurality of first synchronization signals and at least one of the plurality of second synchronization signals.

A method includes: generating indication information, where the indication information is used to indicate a resource allocation table corresponding to a first data unit in the plurality of data units; sending the indication information in a timeslot previous to a timeslot used to send the first data unit; and sending the plurality of data units, where a resource allocation table corresponding to each data unit is selected from a plurality of resource allocation tables in a cyclic manner, and a cyclically initial resource allocation table is the resource allocation table indicated by the indication information.

The present disclosure relates to a service sending method and apparatus, and a service receiving method and apparatus. One example service sending method includes obtaining, by a network device, a first data stream and a second data stream, and inserting the first data stream into the second data stream to generate a third data stream. The third data stream includes a first information block and a second information block, the first information block is used to carry the first data stream, the second information block is used to carry a first data stream distribution indication map, the first data stream distribution indication map is used to indicate a location of the first information block, and the second information block is identified by using a preset map block type.