发明授权
US06690734B1 Method and apparatus for puncturing code symbols in a communications system
有权
用于在通信系统中对代码符号进行删截的方法和装置
- 专利标题: Method and apparatus for puncturing code symbols in a communications system
- 专利标题(中): 用于在通信系统中对代码符号进行删截的方法和装置
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申请号: US09587168申请日: 2000-06-02
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公开(公告)号: US06690734B1公开(公告)日: 2004-02-10
- 发明人: Stein Lundby , Lorenzo Casaccia , Leonid Razoumov
- 申请人: Stein Lundby , Lorenzo Casaccia , Leonid Razoumov
- 主分类号: H04L2700
- IPC分类号: H04L2700
摘要:
Techniques for puncturing symbols in a communications system. S symbols are received for a frame having a capacity of N symbols, with S being greater than N. P symbols need to be punctured so that remaining symbols fit into the frame. A number of puncture distances, D1 through DN, are computed based on S and P. A particular number of symbol punctures is determined for each computed puncture distance. P1 through PN symbol punctures are then performed at the distances of D1 through DN, respectively. For a more even distribution of the symbol punctures, each of the distances D1 through DN can be selected to be greater than or equal to a minimum puncture distance Dmin defined as Dmin=└S/P┘, where └ ┘ denotes a floor operator. The symbol punctures at each computed distance can be performed together or distributed with symbol punctures at other distances.
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