| 摘要 |
In the communications network disclosed herein, each of a plurality of similar stations is operated so that the group automatically organizes or configures itself into a multi-layered network for relaying messages from station to station, with some of the stations operating at a relatively high power level as message gateways for a cluster of stations operating at lower power thereby to form, through the gateways, a network backbone providing longer distance network links. Initially, individual stations attempt to affiliate at a lower power level with an existing cluster gateway and, if that attempt is unsuccessful, the station switches to a higher power level and commences operation as a cluster gateway. Each cluster gateway periodically communicates data at least identifying to other cluster gateways the non-gateway stations which are affiliated with it. Preferably, if a cluster gateway is within affiliation range with another cluster gateway one of them will terminate cluster gateway status if that termination will not reduce connectivity of the network backbone below a preselected level. |
