Communication method and communication apparatus

A method, wherein the method comprises:

• receiving, by a second communication apparatus, first information, wherein the first information indicates non-differential information of at least one first target point at a first moment, and each of the at least one first target point is a target point sensed by a terminal device at the first moment;
• receiving, by the second communication apparatus, second information, wherein the second information indicates differential information of at least one second target point, each of the at least one second target point corresponds to a first target point in the at least one first target point, differential information of each of the at least one second target point is determined based on non-differential information of the second target point at a second moment and non-differential information of a corresponding first target point at the first moment, and each of the at least one second target point is a target point sensed by the terminal device at the second moment;
• and
• determining, by the second communication apparatus, non-differential information of the at least one second target point at the second moment based on the first information and the second information.

A communication apparatus, wherein the communication apparatus comprises:

• at least one processor;
• one or more memories coupled to the at least one processor and storing programming instructions for execution by the at least one processor to obtain first information, wherein the first information indicates non-differential information of at least one first target point at a first moment, and each of the at least one first target point is a target point sensed by the communication apparatus at the first moment;
• and
• a transceiver, configured to send the first information, wherein
• the one or more memories further store programming instructions for execution by the at least one processor to obtain second information, wherein the second information indicates differential information of at least one second target point, each of the at least one second target point corresponds to a first target point in the at least one first target point, differential information of each of the at least one second target point is determined based on non-differential information of the second target point at a second moment and non-differential information of a corresponding first target point at the first moment, and each of the at least one second target point is a target point sensed by the communication apparatus at the second moment;
• and
• the transceiver is further configured to send the second information.