Abstract: Embodiments of this application provide example code block identification methods and example apparatuses. One example method includes obtaining, by a communication apparatus, a code block stream, and obtaining an ith code block, an (i?1)th code block, and an (i+1)th code block that are adjacent to each other in the code block stream. The communication apparatus determines a to-be-identified bit pattern based on bit patterns corresponding to the three adjacent code blocks. The communication apparatus determines the ith code block as a start boundary code block based on the to-be-identified bit pattern and a template bit pattern.

Abstract: A communication method includes, when a rate adaptation or a frequency offset adjustment is performed on a first block sequence, a quantity of first preset blocks that are added or deleted is one of one or more preset values. In this way, a receive end may determine, based on whether the quantity of first preset blocks in the received first block sequence is a preset value, whether an exception occurs in the first preset block during transmission. Based on this, a false packet can be accepted as a correct packet less frequently, thereby improving a mean time to false packet acceptance (MTTFPA) indicator.

Abstract: A first node communicates with a second node by using a first channel, and the first channel includes N slots. The first node sends first information to the second node, where the first information is used to request to change a correspondence between a first slot in the first channel and a first service, and where the first information includes an identifier of the first service and an identifier of the first slot. The first node receives second information from the second node, where the second information is used to indicate to acknowledge or reject the request in the first information.

Abstract: The technology of this application relates to a rate adaptation method and apparatus. The method includes, when a rate adaptation requirement exists, inserting a rate adaptation code block only between two adjacent code blocks whose code block relationship meets a preset condition, or deleting only a rate adaptation code block between two code blocks whose code block relationship meets a preset condition. In this way, it can be ensured that correctness of parsing a packet by a receive side after the receive side receives the packet is not affected by rate adaptation, and reliability of rate adaptation can be improved.

Abstract: This application discloses a communication system including a target network, and the target network includes at least a first subnetwork domain. The first subnetwork domain includes a first network node that belongs to a first path and a second network node that belongs to a second path. The first path includes a first channel and a second channel that are connected to the first network node, and the second path includes a third channel and a fourth channel that are connected to the second network node. The first channel and the third channel are protection switching channels for each other, and the second channel and the fourth channel are protection switching channels for each other. The first network node and/or the second network node may determine a transmission path of a service based on a state of a channel.

Abstract: A service flow adjustment method and a communication apparatus are provided. Slot adjustment information is carried in a client signal flow sent between nodes, so that times at which all nodes on a network switch slot configuration can be unified, to avoid service damage in a process of adjusting a network transmission bandwidth. The method includes: A first node receives a first client signal flow from a second node by using N slots of a first bundling group; and after first duration starting from a time at which the first node detects slot adjustment information, the first node receives the first client signal flow from the second node by using M slots of the first bundling group.

Abstract: A communication method is provided. A first communication apparatus receives a first CBR service, generates, based on the first CBR service, a first block sequence carrying the first CBR service, and then sends the first block sequence to a second communication apparatus. The first block sequence includes a first start block, M first data blocks, and a first termination block, the first block sequence includes first indication information and a first padding area, the first indication information indicates that no CBR service data is padded in the first padding area, the first CBR service is not padded in the first padding area, and a length of the first padding area is less than a length of the first data block, where M is a positive integer.

Abstract: A first communication apparatus may obtain a first fine granularity basic unit (fgBU). The first fgBU includes a plurality of first outer code blocks, and the plurality of first outer code blocks includes an outer start(S) code block, a plurality of outer data (D) code blocks, and a first outer error (E) code block. The first outer E code block is used to carry data of a first inner code block. After obtaining the first fgBU, the first communication apparatus restores the first inner code block based on the first fgBU, and sets the first inner code block as a first inner E code block.

Abstract: A bit error indication method for a service stream and a related communication apparatus are disclosed. According to the method, when a quantity of bit errors that is counted inside a device exceeds a preset threshold, it can be ensured that the device continues to work normally. The method includes: A network device receives a first signal stream from a first node by using N slots of a first bonding group, determines a first check value based on a first check code in the first signal stream, determines a second check value based on the first check value and a current check value, and sends a second signal stream to a second node by using M slots of the first bonding group. The second signal stream includes a target check value determined based on the second check value.

Abstract: An air conditioner, a drainage control method and apparatus therefor, and a computer-readable storage medium are provided. An outdoor water storage tank of the air conditioner has a first outdoor water level switch and a second outdoor water level switch. An indoor water storage tank of the air conditioner has a first indoor water level switch. The drainage control method includes controlling, in response to the first indoor water level switch not being triggered and the first outdoor water level switch or the second outdoor water level switch being triggered, a drainage pump to operate, to discharge water in the outdoor water storage tank into the indoor water storage tank for water storage. The method further includes determining that rainy weather occurs, and controlling a spray pump to operate to discharge water in the indoor water storage tank to an outdoor environment.

Abstract: This application discloses a code block identification method and related apparatus. The method includes: obtaining a code block stream, where the code block stream includes a first code block; determining a to-be-identified bit pattern and comparing the to-be-identified bit pattern with a template bit pattern to obtain a quantity of inconsistent bits; and identifying the first code block as a first boundary code block when the quantity of inconsistent bits is less than or equal to a first threshold. The to-be-identified bit pattern includes a first bit pattern and corresponds to the first code block. The template bit pattern includes a first template bit pattern and corresponds to the first boundary code block.

Abstract: A first communication apparatus determines a first transmission delay indicating a transmission delay of a fine granularity service in the first communication apparatus; and the first communication apparatus sends the first transmission delay to a second communication apparatus. A service bit flow sent by a sink node meets a delay compensation requirement to ensure that a network transmission delay from a source node to the sink node and a network transmission delay from the sink node to the source node in a fine granularity service network are equal or meet an expected error range, or that the network transmission delay from the source node to the sink node and the network transmission delay from the sink node to the source node are adjusted to an expected value to meet a service requirement.

Abstract: A delay measurement method is disclosed. A first communication apparatus obtains a first moment, where the first moment is a timestamp at which the first communication apparatus inserts an operation, administration and maintenance OAM block; and the first moment is greater than or equal to a moment at which the first communication apparatus receives a first service bit flow, the first moment is less than a moment at which the first communication apparatus inserts a one-way delay measurement 1DM message or a two-way delay measurement 2DM message into a first block flow, the first service bit flow carries a first fine granularity service, and the first block flow is obtained based on the first service bit flow; and the first communication apparatus sends first moment to a second communication apparatus, where the first moment is for measuring a delay between the first communication apparatus and the second communication apparatus.

Abstract: A communication method, a related apparatus, and a storage medium are provided. In this application, a first communication apparatus receives a first service data stream, generates a first code block stream based on the first service data stream, and sends the first code block stream. The first code block stream includes first clock frequency information, and the first clock frequency information indicates transmission duration of k first data frames of the first service data stream, and/or a moment at which the k first data frames of the first service data stream are received.

Abstract: A method for determining a transmission slot includes determining, by a target device, a sending slot based on a receiving slot and a latency correction parameter, or determining, by the target device, a receiving slot based on a sending slot and a latency correction parameter.

Abstract: A communication method includes, when a rate adaptation or a frequency offset adjustment is performed on a first block sequence, a quantity of first preset blocks that are added or deleted is one of one or more preset values. In this way, a receive end may determine, based on whether the quantity of first preset blocks in the received first block sequence is a preset value, whether an exception occurs in the first preset block during transmission. Based on this, a false packet can be accepted as a correct packet less frequently, thereby improving a mean time to false packet acceptance (MTTFPA) indicator.

Abstract: This application discloses a code block identification method and related apparatus. The method includes: obtaining a code block stream, where the code block stream includes a first code block; determining a to-be-identified bit pattern and comparing the to-be-identified bit pattern with a template bit pattern to obtain a quantity of inconsistent bits; and identifying the first code block as a first boundary code block when the quantity of inconsistent bits is less than or equal to a first threshold. The to-be-identified bit pattern includes a first bit pattern and corresponds to the first code block. The template bit pattern includes a first template bit pattern and corresponds to the first boundary code block.

Abstract: Embodiments of this application provide a communication method, a communications device, and a storage medium, to process an invalid block in a data stream. In embodiments of this application, N first block streams are obtained, where N is a positive integer. When there is an invalid block in the N first block streams, the invalid block in the N first block streams is converted into a target block, to obtain a to-be-sent block stream. Then, the to-be-sent block stream is sent. Because the invalid block in the block stream is checked and converted into the target block, an error that occurs in service data at a receive end and that is caused by the invalid block can be reduced.

Abstract: A first node communicates with a second node by using a first channel, and the first channel includes N slots. The first node sends first information to the second node, where the first information is used to request to change a correspondence between a first slot in the first channel and a first service, and where the first information includes an identifier of the first service and an identifier of the first slot. The first node receives second information from the second node, where the second information is used to indicate to acknowledge or reject the request in the first information.

Abstract: This application discloses a bit error indication method for a service stream and a communication apparatus, so that when a quantity of bit errors that is counted inside a device exceeds a preset threshold, it can be ensured that the device continues to work normally. The method includes: A network device receives a first signal stream from a first node by using N slots of a first bonding group, determines a first check value based on a first check code in the first signal stream, determines a second check value based on the first check value and a current check value, and sends a second signal stream to a second node by using M slots of the first bonding group. The second signal stream includes a target check value determined based on the second check value.