Communication method and related device

An apparatus, comprising:

• at least one processor;
• and
• a non-transitory computer-readable memory storing a program to be executed by the at least one processor, the program including instructions for:
• obtaining a first parameter value of an uplink;
• obtaining a second parameter value of a sidelink;
• and
• determining a relationship between a transmission priority of a sidelink buffer status report media access control control element and a transmission priority of an uplink buffer status report media access control control element according to a comparison between the first parameter value and the second parameter value, wherein the uplink is a wireless communications link from the apparatus to a network device, and wherein the sidelink is a wireless direct transmission link between the apparatus and another terminal device;
• and
• selectively transmitting an uplink media access control protocol data unit or a sidelink media access control protocol data unit according to the relationship between the first parameter value and the second parameter value, wherein the uplink media access control protocol data unit or the sidelink media access control protocol data unit is transmitted according to a predetermined rule response to the first parameter value being equal to the second parameter, and according to a different rule in response to the first parameter value being different from the second parameter.

A non-transitory computer readable storage medium, having a program stored thereon, the program including instructions, which, when executed by a processor of a terminal device, cause the processor to perform:

• obtaining a first parameter value of an uplink;
• obtaining a second parameter value of a sidelink;
• and
• transmitting an uplink media access control protocol data unit or a sidelink media access control protocol data unit according to a comparison between the first parameter value and the second parameter value, wherein the uplink media access control protocol data unit or the sidelink media access control protocol data unit is transmitted according to a predetermined rule in response to the first parameter value being equal to the second parameter, and according to a different rule in response to the first parameter value being different from the second parameter, wherein the uplink is a wireless communications link from the terminal device to a network device, and wherein the sidelink is a wireless direct transmission link between the terminal device and another terminal device.