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WCDMA 物理层（英）
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2009-05-27
王磊
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WCDMA 物理层（英）:In the scrambling process the code sequence is multiplied with a
pseudorandom scrambling code.
The scrambling code can be a long code (a Gold code with 10 ms
period) or a short code (S(2) code).
In the downlink scrambling codes are used to reduce the inter-basestation
interference. Typically, each Node B has only one scrambling
code for UEs to separate base stations. Since a code tree under one
scrambling code is used by all users in its cell, proper code
management is needed.
In the uplink scrambling codes are used to separate the terminals.
pseudorandom scrambling code.
The scrambling code can be a long code (a Gold code with 10 ms
period) or a short code (S(2) code).
In the downlink scrambling codes are used to reduce the inter-basestation
interference. Typically, each Node B has only one scrambling
code for UEs to separate base stations. Since a code tree under one
scrambling code is used by all users in its cell, proper code
management is needed.
In the uplink scrambling codes are used to separate the terminals.
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