I am sorry to deviate from the assumption that telepathy is part of schizophrenia and a delusion,I happen to know telepathy is real and that in a state of heightened awareness I can read other's thoughts and they can read mine.I experience this when I am not having psychotic symptoms as well as when I am,it is a natural phenonemon.My sister and I could communicate this way when we were far apart and we have confirmed with each other things we telepathically communicated when she was in her house and I in mine.So don't believe this is a symptoms of illness rather it is a consequence of the third eye psychic centres of the body being opened and not closing down again.
I assure you it is something a lot of people experience and very common if you have had a mental illness or not.