Communication method and apparatus

A non-transitory computer-readable storage medium having instructions stored thereon that, when executed by an apparatus, cause the apparatus to perform operations, the operations comprising:

• determining a logical channel identifier (LCID) meeting a preset condition, wherein a first packet data convergence protocol (PDCP) entity of the apparatus is associated with two or more logical channels (LCHs);
• receiving a first data packet from a second terminal;
• and
• parsing, by the first PDCP entity of the apparatus, the first data packet based on the LCID.

A non-transitory computer-readable storage medium having instructions stored thereon that, when executed by an apparatus, cause the apparatus to perform operations comprising:

• determining a logical channel identifier (LCID) meeting a preset condition, wherein a second packet data convergence protocol (PDCP) entity of the apparatus is associated with two or more logical channels (LCHs);
• using the LCID as an input parameter of a security algorithm of the second PDCP entity to perform security protection on a first data packet;
• and
• sending the first data packet on which security protection is performed to a first terminal, wherein the LCID is an input parameter used when a first PDCP entity of the first terminal parses the first data packet, and the first PDCP entity of the first terminal corresponds to the second PDCP entity of the apparatus.