Reception of message bs(m) ≡ (i, t, data, H(m)) and sending of inter(m) by a base station BSr, such that i ∉ BSr.

Reception of message bs(m) ≡ (i, t, data, H(m)) and sending of inter(m) by a base station BSr, such that i ∉ BSr.基站BSr接收等价于元组(i, t, 数据, H(m))的消息bs(m)，并发送消息inter(m)，且满足i不属于BSr。