Oh I see. Thank you for your response, it’s really helpful. I thought the CSI-RS only shows the way in the pic. Now I know that they can be for different kinds of use and have different frame sturucture. Thank you sir! Have a nice day 
Oh I see. Thank you for your response, it’s really helpful. I thought the CSI-RS only shows the way in the pic. Now I know that they can be for different kinds of use and have different frame sturucture. Thank you sir! Have a nice day