Uplink transmission method and communications apparatus

A communications apparatus, comprising:

• at least one processor;
• and
• a non-transitory computer readable memory coupled to the at least one processor and storing a program for execution by the processor, instructions for:
• receiving an autonomous uplink transmission activation message, wherein the autonomous uplink transmission activation message indicates to activate an autonomous uplink transmission resource;
• toggling a new data indicator (NDI) for a second hybrid automatic repeat request (HARQ) process, wherein the second HARQ process is different from a first HARQ process;
• and
• performing new uplink data transmission after receiving the autonomous uplink transmission activation message, and in a process of transmitting, in a subframe in which an autonomous uplink transmission resource is configured, uplink data by using the first HARQ process, wherein the new uplink data transmission is performed in the subframe using the first HARQ process in response to an NDI for the first HARQ process being toggled, wherein the first HARQ process is a HARQ process that can be used for autonomous uplink transmission, and wherein there is no uplink grant delivered, before the subframe, for the first HARQ process to a HARQ entity.

A non-transitory computer-readable storage medium, storing a program for execution by a computing device, the program including instructions for:

• receiving an autonomous uplink transmission activation message, wherein the autonomous uplink transmission activation message indicates to activate an autonomous uplink transmission resource;
• toggling a new data indicator (NDI) for a second hybrid automatic repeat request (HARQ) process, wherein the second HARQ process is different from a first HARQ process;
• and
• performing new uplink data transmission after receiving the autonomous uplink transmission activation message, and in a process of transmitting, in a subframe in which an autonomous uplink transmission resource is configured, uplink data by using the first HARQ process, wherein the new uplink data transmission is performed in the subframe using the first HARQ process in response to an NDI for the first HARQ process being toggled, wherein the NDI is considered to be toggled in response to the transmission on the subframe being an initial transmission for the first HARQ process, wherein the first HARQ process is a HARQ process that can be used for autonomous uplink transmission, and wherein there is no uplink grant delivered, before the subframe, for the first HARQ process delivered to a HARQ entity.