Answer: You just can say same number of SC but different decoding length. SC is allocated by RNC which also notify Node B, thus, Node B know this.
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上行擾碼主要用來(lái)區分用戶(hù),但分為長(cháng)擾碼和短擾碼,這兩個(gè)都是2的24次方個(gè),那么有什么區別,數量一樣多干嘛還叫長(cháng)和短?用戶(hù)如何知道使用哪個(gè)?是系統廣播來(lái)通知嗎?
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