| 摘要 |
PURPOSE:To improve the transmitting efficiency of an unbound circuit by bundling plural packets whose user data length is short into one slot, inserting and sending. CONSTITUTION:The format of an inbound signal consists of a header part a1, packet level header parts b1 and b2 and so on, user data parts c1 and c2, dummy data (d) and a sequence (e) for controlling an error. Then, the number of packets designating area (f) is provided in the header part a1. Thus, a central station can receive plural packets data inserted into one slot. Consequently, the transmitting efficiently of an inbound circuit is improved. |
