Given a finite, ergodic Markov $\{X_i\}$, $a>b$ are two natural numbers. Let

$$p=P[\forall n, \sum_{k=n}^{n+a} \mathbf{1}_m(X_k)\leq b]$$ where $\mathbf{1}_m(X_k) =1$ if $X_k=m$ and 0 otherwise.

Namely, $p$ is the probability that for any time interval of size $a$, the number of visits to state $m$ is less than $b$.

Obviously this questions is related to the limited distribution (which, by ergodicity, is equivalent to the stationary distribution), but I could not find the exact link, since stationary distribution talks about the limit, but here, the size of interval is finite. Moreover, I am not sure whether this type of questions has been studied. References would be appreciated.