| 发明名称 | Spectrum sensing with partial information feedback in a cognitive relay network | ||
| 摘要 | A system comprising a source node (11) and a relay node (15a, 15b 15c). The relay node senses a radio spectrum to provide first sensing data indicating the availability of a signal channel at the relay node. The source node senses the radio spectrum to provide second sensing data indicating the availability of the signal channel at the source node. The source node or relay node generates a channel availability parameter based on the first or second sensing data, respectively. The channel availability parameter comprises fewer bits of information than whichever of the first or second sensing data is used to generate the channel availability parameter. The source node determines whether to send message information to the relay node based on a sensing result obtained by combining the channel availability parameter with whichever one of the first and second sensing data is not used to generate the channel availability parameter. | ||
| 申请公布号 | US9198163(B2) | 申请公布日期 | 2015.11.24 |
| 申请号 | US201313740425 | 申请日期 | 2013.01.14 |
| 申请人 | Kabushiki Kaisha Toshiba | 发明人 | Wang Stephen;Wang Yue |
| 分类号 | H04B7/15;H04W72/00;H04W72/04;H04L27/00;H04W84/04 | 主分类号 | H04B7/15 |
| 代理机构 | Oblon, McCelland, Maier & Neustadt, L.L.P. | 代理人 | Oblon, McCelland, Maier & Neustadt, L.L.P. |
| 主权项 | 1. A system comprising a source node and a relay node, the relay node being configured to perform energy sensing of a radio spectrum to provide first sensing data indicating the availability of a signal channel at the relay node, the source node being configured to perform energy sensing of the radio spectrum to provide second sensing data indicating the availability of the signal channel at the source node, wherein one or other of the relay node and source node is configured to generate a channel availability parameter based on the first or second sensing data, respectively, the channel availability parameter comprising a smaller number of bits of information than whichever of the first or second sensing data is used to generate the channel availability parameter, the source node being configured to determine whether to send message information to the relay node based on a sensing result obtained by combining the channel availability parameter with whichever one of the first and second sensing data is not used to generate the channel availability parameter. | ||
| 地址 | Tokyo JP | ||