公开(公告)号：US20120099549A1

公开(公告)日：2012-04-26

申请号：US13340408

申请日：2011-12-29

申请人： Daichi IMAMURA ,  Atsushi MATSUMOTO ,  Takashi IWAI ,  Sadaki FUTAGI ,  Tomofumi TAKATA

发明人： Daichi IMAMURA ,  Atsushi MATSUMOTO ,  Takashi IWAI ,  Sadaki FUTAGI ,  Tomofumi TAKATA

IPC分类号： H04W72/04 ,  H04W74/08

CPC分类号： H04W74/002 ,  H04W74/0891

摘要： A radio transmitting apparatus and a radio transmitting method wherein the increase of the guard time in a random access region is reduced to secure the data transmitting region of an upstream line. In this apparatus, when a received signal power estimated by a received signal power estimating part (205) is the higher, a RACH format selecting part (206) selects a RACH format having the longer frame length. Contrarily, when a received signal power estimated by the received signal power estimating part (205) is the lower, the RACH format selecting part (206) selects a RACH format having the shorter frame length. A RACH data part arranging part (207) appropriately selects, in accordance with the selected RACH format, top-priority information, such as terminal identifiers, priority information, such as connection request information or band assignment request information, and non-priority information and arranges RACH data parts.

摘要翻译： 一种无线发送装置和无线发送方法，其中减少随机接入区域中的保护时间的增加以确保上游线路的数据发送区域。 在该装置中，当由接收信号功率估计部（205）估计的接收信号功率越高时，RACH格式选择部（206）选择具有较长帧长的RACH格式。 相反，当由接收信号功率估计部分（205）估计的接收信号功率较低时，RACH格式选择部分（206）选择具有较短帧长的RACH格式。 RACH数据部分配置部分207根据选择的RACH格式，适当地选择诸如终端标识符等优先级信息，连接请求信息或频带分配请求信息等优先级信息，以及非优先级信息，以及 安排RACH数据部分。