| 摘要 |
<p>Known is a telecommunications system such as a full duplex cordless CT0 and CT1 telephone system. For such a system, reliable protocols are needed for multimode handsets, transfer and channel skipping. An extension protocol is proposed for extending a point to point radio link between a primary station and a secondary station to a point to multipoint radio link in which the primary station broadcasts to the secondary stations. This is done by first informing the handset to which a point to point radio link has been set up that an extension is to be done so that the handset can switch off its transmitter, and then transmitting extension messages to all handsets. Furthermore, the transfer and skipping protocols are proposed with a reliable connection establishment by using a double checking protocol for seizing a pair of free channels.</p> |
