Transmission method and apparatus, priority definition method and apparatus, and communication device

A priority definition method, applicable to a communication device, the method comprising:

• configuring or acquiring a mapping relationship between a first Uu priority and a first SL priority of a target resource;
• and
• determining the first Uu priority of the target resource according to the mapping relationship, wherein
• the target resource is related to an SL, the target resource has or does not have a first Uu priority, and the first Uu priority of the target resource comprises:
• a Uu priority of the target resource and/or a Uu priority of at least part of information corresponding to the target resource;
• and the first SL priority of the target resource comprises:
• an SL priority of the target resource and/or an SL priority of the at least part of information corresponding to the target resource;
• wherein the target resource has or does not have the first Uu priority, a first resource has a second Uu priority, and determining target transmission when the target resource and the first resource at least partially overlap, meet a collision condition, or meet a multiplexing condition comprises at least one of the following:
• skipping transmitting the at least part of information corresponding to the target resource in a case that the second Uu priority of the first resource is a first priority;
• or
• transmitting the at least part of information corresponding to the target resource in a case that the second Uu priority of the first resource is a second priority,
• wherein the first priority is a high priority, or corresponds to a high priority value, or is priority index 1, and the second priority is a low priority, or corresponds to a low priority value, or is priority index 0.

A communication device, comprising:

• a processor, a memory, and a program or instructions stored on the memory and executable on the processor, the program or instructions, when executed by the processor, implementing following steps:
• determining target transmission when a target resource and a first resource at least partially overlap, meet a collision condition, or meet a multiplexing condition, wherein
• the target resource is related to a sidelink (SL), the target resource has or does not have a first Uu priority, the first resource has a second Uu priority, and the first Uu priority of the target resource comprises a Uu priority of the target resource and/or a Uu priority of at least part of information corresponding to the target resource,
• wherein the target resource has or does not have the first Uu priority, the first resource has the second Uu priority, and the determining target transmission comprises at least one of the following:
• skipping transmitting the at least part of information corresponding to the target resource in a case that the second Uu priority of the first resource is a first priority;
• or
• transmitting the at least part of information corresponding to the target resource in a case that the second Uu priority of the first resource is a second priority,
• wherein the first priority is a high priority, or corresponds to a high priority value, or is priority index 1, and the second priority is a low priority, or corresponds to a low priority value, or is priority index 0.