发明名称 |
DESPREADING-ON-DEMAND FOR USE IN SPREAD SPECTRUM RECEIVERS |
摘要 |
A flexible and resource-efficient despreading-on-demand (DoD) technique is described where only channels that actually contain data to be despread are despread, and only a single despreading operation need be performed using the actual spreading factor associated with that data. In one example, the data portion of the received signal is buffered for a frame so that an associated transport format, including the actual spreading factor, can be determined before the data is despread. The data is buffered in a memory at a first rate and then subsequently read out at a second rate that is considerably faster than the first rate. The fast data read-out allows despreading at a high rate so that the despread data symbols from the buffered frame are available for further processing shortly after the last sample belonging to the frame has been received. |
申请公布号 |
WO2007070002(A2) |
申请公布日期 |
2007.06.21 |
申请号 |
WO2006SE50573 |
申请日期 |
2006.12.12 |
申请人 |
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) |
发明人 |
OLSON, HENRIK;FORSBERG, BJOERN;MESKO, GEORG;NORDHAMN, ERIK |
分类号 |
H04B7/26;H04B1/707 |
主分类号 |
H04B7/26 |
代理机构 |
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地址 |
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