Narrow band synchronization signal transmission and detection
AssigneeQUALCOMM Incorporated
InventorsJing LEI, Peter GAAL, Hao XU, Xiao feng WANG
Life of this patent
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AssigneeQUALCOMM Incorporated
InventorsJing LEI, Peter GAAL, Hao XU, Xiao feng WANG
Estimating the term…
In order to reduce ambiguity in NB-SSS and complexity of receiver processing, a transmitter apparatus generates an SSS, wherein the SSS signal comprises a sequence of OFDM symbols, wherein each symbol of the sequence of SSS symbols is mapped to a codeword symbol of an FEC code. Source symbols of the sequence of SSS symbols carry a PCID and frame timing information, and parity symbols of the sequence of SSS symbols introduce redundancy and coding gain. A receiver receives the NB-SSS over multiple OFDM symbols, each symbol of the SSS comprising a short ZC sequence with a combination of root index and cyclic shift. The apparatus derives path metrics using cross-correlation for each of the plurality of symbols, determines a candidate SSS source message based on the derived path metrics and coding constraints of FEC codewords, and identifies a PCID and timing information based on the candidate SSS source message.
A method of narrow band (NB) wireless communication at an evolved Node B (eNB), comprising:
An apparatus for narrow band (NB) wireless communication, comprising:
A method of narrow band (NB) wireless communication at a user equipment (UE), comprising:
An apparatus for narrow band (NB) wireless communication, comprising:
Dependencies are inferred from the claim text.