发明名称 WIRELESS COMMUNICATION DEVICE
摘要 A wireless communication device for packet communication is provided. Based on an interfering wave level that is stored in carrier sense table, the number of empty slots for every threshold of interfering wave is obtained, and, in a case where the number of empty slots for the threshold exceeds a predetermined value, a slave station is notified the number of empty slots.
申请公布号 US2016150535(A1) 申请公布日期 2016.05.26
申请号 US201514940215 申请日期 2015.11.13
申请人 PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. 发明人 TOMINAGA Hideo;FUKUDA Shinji
分类号 H04W72/04;H04L5/00;H04W72/08;H04L5/22 主分类号 H04W72/04
代理机构 代理人
主权项 1. A wireless communication device comprising: a control station; and a slave station, wherein the control station and the slave station perform communication with each other using a time division multiplex scheme, wherein the control station transmits channel information notifying a slot and a frequency that are available, wherein the slave station selects the slot and the frequency that are notified with channel information, and activates the communication with the control station, wherein the control station includes a wireless communication unit that performs wireless communication,an interfering wave level storage unit in which a reception signal strength of an interfering wave for every slot and every frequency is stored,a channel selection unit that selects a slot and a frequency that are to be notified with the channel information based on the reception signal strength of the interfering wave that is stored in the interfering wave level storage unit, anda control unit that controls the entire wireless communication device, wherein the control unit controls the wireless communication unit in such a manner that a reception level of the interfering wave for every channel is measured, and writes the measured reception level to the interfering wave level storage unit, wherein in a case where the slave station is to be notified of the channel information, the control unit operates in such a manner that the slot and the frequency that are selected in the channel selection unit are notified, wherein the channel selection unit compares the reception signal strength of the interfering wave for every slot and a threshold of the reception signal strength of the interfering wave in one selected frequency, using the reception signal strength of the interfering wave that is stored in the interfering wave level storage unit, the threshold of the reception signal strength of the interfering wave that is determined in advance, and a threshold of the number of empty slots that are determined for every threshold of the reception signal strength of the interfering wave, and wherein, in a case where the number of slots, for each of which the reception signal strength of the interfering wave in the one selected frequency does not exceed the threshold of the reception signal strength, exceeds the threshold of the number of empty slots that are determined in advance for every threshold of the reception signal strength, the channel selection unit operates in such a manner that a combination of a slot, for which the reception signal strength of the interfering wave does not exceed the threshold of the reception signal strength, and the selected frequency is selected.
地址 Osaka JP