Communication method and related apparatus

A communication method, comprising:

• sending configuration information, wherein
• the configuration information indicates to send a reference signal through a first transmit port group using a first orthogonal code sequence;
• the configuration information comprises at least one of a configuration of the first transmit port group or a configuration of the first orthogonal code sequence;
• a quantity of first transmit port groups is less than or equal to a total quantity X of transmit port groups of a terminal device;
• a quantity of first orthogonal code sequences is less than or equal to a total quantity of transmit ports (NG) in the first transmit port group;
• when the quantity of first transmit port groups is equal to X, the quantity of first orthogonal code sequences is less than NG;
• and
• when the quantity of first orthogonal code sequences is equal to NG, the quantity of first transmit port groups is less than X;
• and
• receiving the reference signal based on the configuration information.

A communication apparatus, comprising:

• a memory comprising programming instructions;
• and
• at least one processor configured to execute the programming instructions to enable the communication apparatus to:
• receive configuration information, wherein
• the configuration information indicates to send a reference signal through a first transmit port group using a first orthogonal code sequence;
• the configuration information comprises at least one of a configuration of the first transmit port group or a configuration of the first orthogonal code sequence;
• a quantity of first transmit port groups is less than or equal to a total quantity X of transmit port groups of the communication apparatus;
• a quantity of first orthogonal code sequences is less than or equal to a total quantity of transmit ports (NG) in the first transmit port group;
• when the quantity of first transmit port groups is equal to X, the quantity of first orthogonal code sequences is less than NG;
• and
• when the quantity of first orthogonal code sequences is equal to NG, the quantity of first transmit port groups is less than X;
• and
• send the reference signal based on the configuration information.