发明名称 |
METHOD AND APPARATUS IN A CELLULAR TELECOMMUNICATIONS SYSTEM |
摘要 |
<p>A method for use in a cellular, FFT based multi-carrier communications system comprising N sub-carriers, for allocating a set P of sub-carriers to be reserved for potential use as carriers of specific information, comprises the following steps:- selecting a number M indicating the number of sub-carriers to be allocated to a set P of sub-carriers, such that L=N/M is an integer- allocating the at least two subcarriers of the set P={(n0+m*L) mod N : 0<=m<M} for the specific information, n0 being the offset of the lowest numbered subcarrier in P, the elements of P being indices, each referring to the number of a sub-carrier to be allocated. An apparatus for carrying out the method is also disclosed. According to the invention, the sub-channels are maximally spread in frequency, which gives maximum diversity and also enables the use of low-complexity terminals.</p> |
申请公布号 |
WO2005060195(A1) |
申请公布日期 |
2005.06.30 |
申请号 |
WO2003SE02029 |
申请日期 |
2003.12.19 |
申请人 |
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL);NYSTROEM, JOHAN;KLANG, GOERAN, N.;FRENGER, PAAL |
发明人 |
NYSTROEM, JOHAN;KLANG, GOERAN, N.;FRENGER, PAAL |
分类号 |
H04L27/26;H04W16/00;H04W16/12;(IPC1-7):H04L27/26 |
主分类号 |
H04L27/26 |
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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