发明名称 |
RADIO TRANSMITTING APPARATUS AND RADIO TRANSMITTING METHOD |
摘要 |
A radio transmitting apparatus and a radio transmitting method wherein the interference between codes can be reduced and the degradation of preamble detection capability can be prevented. According to these apparatus and method, a signature table storing part (103) that stores a table including a plurality of signatures obtained by classifying the magnitudes of propagation loss levels into levels in accordance with the distances from a base station, associating preamble detection window widths with those levels as classified, and by circularly shifting the pattern of a detection window signature #n corresponding to a signature #n to generate a signature #n+1.; A signature selecting part (104) selects, based on the magnitude of a propagation loss level outputted by a propagation loss level determining part (102), one of the corresponding signatures from the signature table storing part (103) at random. A RACH signal generating part (105) uses the selected signature to generate a RACH signal. |
申请公布号 |
EP2048792(A1) |
申请公布日期 |
2009.04.15 |
申请号 |
EP20070791858 |
申请日期 |
2007.08.02 |
申请人 |
PANASONIC CORPORATION |
发明人 |
IWAI, TAKASHI;FUTAGI, SADAKI;IMAMURA, DAICHI;MATSUMOTO, ATSUSHI;OGAWA, YOSHIHIKO |
分类号 |
H04B1/707;H04J13/00;H04J13/10;H04J13/16;H04J13/18;H04W48/08;H04W56/00;H04W72/04;H04W74/08;H04W76/02 |
主分类号 |
H04B1/707 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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