  The ramp quantum secret sharing proposed by Ogawa et al. has the highest
possible coding rate given a threshold type access structure. On the other
hand, in some quantum secret sharing schemes, it is known that some shares can
be distributed to participants before a secret is given to the dealer. However,
it is unclear whether some shares can be distributed before a secret is given
in Ogawa et al.'s scheme. In this paper, we propose a method to distribute some
shares before a secret is given in Ogawa et al.'s scheme, then determine a
necessary and sufficient condition on sets of shares that can be distributed
before a given secret.
