Information transmission method, terminal device, and network device

An information receiving method, comprising:

• sending a random access response, wherein the random access response comprises indication information and uplink grant information, the indication information indicates that a message 3 to be sent by a communications device is a first message 3 or a second message 3, the first message 3 is a message 3 that does not carry user data, and the second message 3 is a message 3 that carries the user data, wherein
• the uplink grant information comprises first resource information, second resource information, and repetition quantity information, the first resource information indicates a resource used by the communications device to send the message 3 on a first narrowband in an uplink bandwidth, the repetition quantity information indicates a quantity of times that the communications device is to repeatedly send the message 3, and the second resource information indicates an index of a narrowband;
• and when the indication information indicates that the message 3 to be sent by the communications device is the first message 3, a quantity of bits of the second resource information is 2;
• or when the indication information indicates that the message 3 to be sent by the communications device is the second message 3, a quantity of bits of the second resource information is N, wherein N is a pre-specified integer, and N is equal to NNBindex, or N is equal to 3, or N is equal to 4, wherein NNBindex is a quantity of bits required to indicate all narrowbands in the uplink bandwidth;
• and
• receiving the message 3.

An apparatus, comprising:

• at least one processor;
• and
• one or more memories coupled to the at least one processor and storing programming instructions that, when executed by the at least one processor, cause the apparatus to:
• receive a random access response, wherein the random access response comprises indication information and uplink grant information, the indication information indicates that a message 3 to be sent by a communications device is a first message 3 or a second message 3, the first message 3 is a message 3 that does not carry user data, and the second message 3 is a message 3 that carries the user data, wherein
• the uplink grant information comprises first resource information, second resource information, and repetition quantity information, the first resource information indicates a resource used by the communications device to send the message 3 on a first narrowband in an uplink bandwidth, the repetition quantity information indicates a quantity of times that the communications device is to repeatedly send the message 3, and the second resource information indicates an index of a narrowband;
• and when the indication information indicates that the message 3 to be sent by the communications device is the first message 3, a quantity of bits of the second resource information is 2;
• or when the indication information indicates that the message 3 to be sent by the communications device is the second message 3, a quantity of bits of the second resource information is N, wherein N is a pre-specified integer, and N is equal to NNBindex, or N is equal to 3, or N is equal to 4, wherein NNBindex is a quantity of bits required to indicate all narrowbands in the uplink bandwidth;
• and
• send the message 3 based on the indication information, the first resource information, the second resource information, and the repetition quantity information.

An apparatus, comprising:

• at least one processor;
• and
• one or more memories coupled to the at least one processor and storing programming instructions that, when executed by the at least one processor, cause the apparatus to:
• send a random access response, wherein the random access response comprises indication information and uplink grant information, the indication information indicates that a message 3 to be sent by a communications device is a first message 3 or a second message 3, the first message 3 is a message 3 that does not carry user data, and the second message 3 is a message 3 that carries the user data, wherein
• the uplink grant information comprises first resource information, second resource information, and repetition quantity information, the first resource information indicates a resource used by the communications device to send the message 3 on a first narrowband in an uplink bandwidth, the repetition quantity information indicates a quantity of times that the communications device is to repeatedly send the message 3, and the second resource information indicates an index of a narrowband;
• and when the indication information indicates that the message 3 to be sent by the communications device is the first message 3, a quantity of bits of the second resource information is 2;
• or when the indication information indicates that the message 3 to be sent by the communications device is the second message 3, a quantity of bits of the second resource information is N, wherein N is a pre-specified integer, and N is equal to NNBindex, or N is equal to 3, or N is equal to 4, wherein NNBindex is a quantity of bits required to indicate all narrowbands in the uplink bandwidth;
• and
• receive the message 3.