PBCH timing and aspects of polar code design involving first scrambling of payload data and second scrambling of encoded data

摘要

PBCH design may affect timing indication in a wireless network and polar code interleaver design, among other things. Mechanisms may indicate half frame timing though de-modulation reference signal sequence initialization, de-modulation reference signal mapping order, or de-modulation reference signal resource element location. The payload of the PBCH comprises a master information block (MIB), which payload is scrambled and encoded using a polar code. After rate matching and interleaving of the polar codeword, second scrambling is applied and the data is modulated.