The protocol can search multiple feasible tree branches, and select the optimal or near optimal branch for connecting the new receiver to the multicast tree if it exists.
该协议可搜索多条可行树枝，并能选择一条最优(或近优)树枝将新成员连接到多播树。
2
The GPS receiver associated with the cell-phone is aided with information received from the cell-site and webserver that help reduce satellite search uncertainty.
蜂窝电话的GPS接收机得到从基站和网络服务器收到的信息的帮助，从而可减少卫星搜索的不确定性。
3
Adoption of the satellite search method provided by the invention and the receiver implementing such a method can shorten the time for acquiring a visible satellite.