The idea that it is often necessary to negotiate a shared meaning in order for satisfying communication to occur relates to which characteristic of the communication model

The idea relates to the characteristic of communication which implies that meanings exist in and among people.

Explanation:

The major reason that a shared meaning should be negotiated with other players in the circle is that there can be misinterpretations derived from any given idea just because not everyone processes the meaning in the same way. Different people often tend to derive different meanings depending on the depth of understanding that the possess about the issue.