Communication method, base station, and terminal

A communication method comprising:

• receiving, by a terminal, data radio bearer (DRB) configuration information from a base station,
• wherein the DRB configuration information is used to determine a mapping relationship between serving cells and DRBs used to carry data of different service types,
• wherein a DRB is associated with one or more serving cells and each serving cell supports one or more numerologies,
• wherein the DRB configuration information contains a mapping relationship between a DRB and the one or more numerologies supported by each serving cell, and
• wherein each of the one or more numerologies is associated with a subcarrier spacing;
• and
• communicating with the base station in one or more serving cells by using one or more numerologies associated with one or more DRBs carrying data in response to the DRB configuration information.

A communication apparatus comprising:

• at least one processor coupled to a memory and a transceiver, wherein the at least one processor is instructed by programming instructions stored in the memory to perform at least the following operations:
• obtaining data radio bearer (DRB) configuration information,
• wherein the DRB configuration information is used to determine a mapping relationship between serving cells and DRBs used to carry data of different service types,
• wherein a DRB is associated with one or more serving cells and each serving cell supports one or more numerologies,
• wherein the DRB configuration information contains a mapping relationship between a DRB and the one or more numerologies supported by each serving cell, and
• each of the one or more numerologies is associated with a subcarrier spacing;
• and
• sending the DRB configuration information to a terminal for enabling the terminal to communicate with the base station in one or more serving cells by using one or more numerologies associated with one or more DRBs carrying data of the terminal.

A communication apparatus comprises:

• at least one processor coupled to a memory and a transceiver, wherein the at least one processor is instructed by programming instructions stored in the memory to perform at least the following operations:
• receiving data radio bearer (DRB) configuration information from a base station,
• wherein the DRB configuration information is used to determine a mapping relationship between serving cells and DRBs used to carry data of different service types,
• wherein a DRB is associated with one or more serving cells and each serving cell supports one or more numerologies,
• wherein the DRB configuration information contains a mapping relationship between a DRB and the one or more numerologies supported by each serving cell, and
• wherein each of the one or more numerologies is associated with a subcarrier spacing;
• and
• controlling the terminal to communicate with the base station in one or more serving cells by using one or more numerologies associated with one or more DRBs carrying data in response to the DRB configuration information.