Multicast service receiving method, multicast service configuration method, terminal, and network side device

A multicast service configuration method, executed by a network side device, comprising:

• sending reconfiguration information of a multicast service to a terminal, wherein the reconfiguration information comprises at least one of the following:
• first indication information used to indicate whether a Packet Data Convergence Protocol (PDCP) Serial Number (SN) of a multicast service or a target Multicast Broadcast Multicast Service (MBMS) Radio Bearer (MRB) of the multicast service before reconfiguration is synchronized with that after the reconfiguration;
• second indication information used to indicate a PDCP layer operation performed by the terminal;
• third indication information used to indicate a Radio Link Control (RLC) layer operation performed by the terminal;
• RLC layer configuration information;
• or
• PDCP layer configuration information.

A terminal, comprising:

• a memory storing computer-readable instructions;
• and
• a processor coupled to the memory and configured to execute the computer-readable instructions, wherein the computer-readable instructions, when executed by the processor, cause the processor to perform operations comprising:
• receiving reconfiguration information of a multicast service sent by a network side device, wherein the reconfiguration information comprises at least one of the following:
• first indication information used to indicate whether a Packet Data Convergence Protocol (PDCP) Serial Number (SN) of the multicast service or a target Multicast Broadcast Multicast Service (MBMS) Radio Bearer (MRB) of the multicast service before reconfiguration is synchronized with that after the reconfiguration;
• second indication information used to indicate a PDCP layer operation performed by the terminal;
• or
• third indication information used to indicate a Radio Link Control (RLC) layer operation performed by the terminal, RLC layer configuration information, and PDCP layer configuration information;
• and
• performing corresponding layer 2 processing according to the reconfiguration information.