primary synchronization channel

  • P-SCH
German: primärer Synchronisations-Kanal
Japanese: 一次同期チャネル

UMTS-downlink channel used for cell search.

Communications engineering. The P-SCH code is the same for all cells. It consists of a modulated code, 256 chips long, and is transmitted once each time slot. This allows the mobile phone to synchronise with the base station for the time slot. See also S-SCH, CPICH and P-CCPCH.

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