What is the community broadcast in the mobile phone? Does it affect sending text messages?

Cell broadcast, which doe not affect short message sending, is a value-added service platform base on mobile communication network. After the "cell broadcast" is started, the cell broadcast center will send messages to all recipients in a specific cell according to the set frequency and time. Any mobile phone that enters this area can receive it, and only when the mobile phone is idle can it receive the broadcast message, which will not affect the normal work of the mobile phone.