发明名称 Wireless transmission method and wireless transmission device
摘要 An external signal is received by the first wireless transmission device of one wireless transmission device group, and then is divided. One divided signal is transmitted to the first wireless transmission device of the other wireless transmission device group opposite to the one wireless transmission device group, and the other divided signal is transmitted to the second wireless transmission device of the one wireless transmission device group. In the same manner, in the second, third, . . . , wireless transmission devices of the one wireless transmission device group, an input signal is divided into two signals, and the divided signals are each transmitted to the opposing wireless transmission device of the other wireless transmission device group and to the adjacent wireless transmission device of the one wireless transmission device group. The wireless transmission devices of the other wireless transmission device group each extracts a signal from the wireless signal transmitted from the opposing wireless transmission device of the one wireless transmission device group, and transmits the signal to the preceding adjacent wireless transmission device of the other wireless transmission device group. The first wireless transmission devices of the other wireless transmission device group combines a signal extracted from the wireless signal transmitted from the first wireless transmission device of the one wireless transmission device group and a signal transmitted from the second wireless transmission device of the other wireless transmission device group together, and outputs the combined signal to the outside.
申请公布号 US8923111(B2) 申请公布日期 2014.12.30
申请号 US201013141364 申请日期 2010.02.03
申请人 NEC Corporation 发明人 Nakajima Hiroaki
分类号 G01R31/08;H04B7/14;H04L1/22;H04W28/06 主分类号 G01R31/08
代理机构 Sughrue Mion, PLLC 代理人 Sughrue Mion, PLLC
主权项 1. A wireless transmission method of transmitting and receiving a signal between wireless transmission devices opposite to each other, the method comprising: dividing a first input signal by a first wireless transmission device; transmitting one divided first signal to a second wireless transmission device opposite to said first wireless transmission device; outputting the other divided first signal to a third wireless transmission device adjacent to said first wireless transmission device and further transmitting the other divided first signal via a fourth wireless transmission device opposite to said third wireless transmission device to said second wireless transmission device adjacent to said fourth wireless transmission device; combining the signals received respectively from said first and fourth wireless transmission devices and outputting the combined signal by said second wireless transmission device; dividing a second input signal by said second wireless transmission device; transmitting one branch second signal to said first wireless transmission device; transmitting the other branch second signal to said first wireless transmission device via said fourth and third wireless transmission devices; and combining the signals received respectively from said second and third wireless transmission devices and outputting the combined signal by said first wireless transmission device, wherein when an abnormal condition occurs in a wireless transmission path, a wireless transmission device among the wireless transmission devices, or a connection between the wireless transmission devices, the abnormal wireless transmission device and the abnormal wireless transmission path are disconnected from a system by performing port link-down control to continue signal transmission with normal wireless transmission devices, and wherein after detecting the abnormal condition, the first wireless transmission device stops the transmission of the one divided first signal abnormal signal and transmits a notification signal indicating the abnormal condition to the second wireless transmission device; and the second transmission device stops the transmission of the one branch second signal.
地址 Tokyo JP