Communication method and communications apparatus

An apparatus, comprising at least one processor, configured to invoke a program stored in a memory, wherein the program, when executed by the processor, causes the apparatus to perform:

• receiving a configuration message from a network device, wherein the configuration message configures a plurality of uplink bandwidth parts (BWPs) that are active for the apparatus and a plurality of downlink BWPs that are active for the apparatus;
• determining a first BWP in the plurality of uplink BWPs to transmit feedback information of downlink information that is on a second BWP in the plurality of downlink BWPs, wherein determining the first BWP comprises determining the first BWP according to a grouping rule in which a first group of the plurality of downlink BWPs including the second BWP are associated with the first BWP of the plurality of uplink BWPs for feedback information associated with the first group and a second group of the plurality of downlink BWPs are associated with a third BWP of the plurality of uplink BWPs for feedback information associated with the second group;
• receiving the downlink information on the second BWP;
• and
• sending the feedback information of the downlink information on the first BWP.

An apparatus, comprising at least one processor, configured to invoke a program stored in a memory, wherein the program, when executed by the processor, causes the apparatus to perform:

• sending a configuration message to a terminal device, wherein the configuration message configures a plurality of uplink bandwidth parts (BWPs) that are active for the terminal device and a plurality of downlink BWPs that are active for the terminal device, and wherein the configuration message configures a first BWP of the plurality of uplink BWPs according to a grouping rule in which a first group of the plurality of downlink BWPs including a second BWP are associated with the first BWP of the plurality of uplink BWPs for feedback information associated with the first group and a second group of the plurality of downlink BWPs are associated with a third BWP of the plurality of uplink BWPs for feedback information associated with the second group;
• sending downlink information to the terminal device on the second BWP in the plurality of downlink BWPs;
• and
• receiving, on a first BWP in the plurality of uplink BWPs, feedback information of the downlink information from the terminal device.