US 11,799,583 B2
PBCH timing and aspects of polar code design
Lakshmi R. Iyer, King of Prussia, PA (US); Allan Y. Tsai, Boonton, NJ (US); Qing Li, Princeton Junction, NJ (US); and Joseph M. Murray, Schwenksville, PA (US)
Assigned to IPLA HOLDINGS INC., New York, NY (US)
Filed by IPLA Holdings Inc., New York, NY (US)
Filed on Dec. 7, 2022, as Appl. No. 18/76,404.
Application 18/076,404 is a continuation of application No. 17/692,258, filed on Mar. 11, 2022, granted, now 11,569,934.
Application 17/692,258 is a continuation of application No. 16/637,536, granted, now 11,323,204, issued on May 3, 2022, previously published as PCT/US2018/045704, filed on Aug. 8, 2018.
Claims priority of provisional application 62/555,850, filed on Sep. 8, 2017.
Claims priority of provisional application 62/543,699, filed on Aug. 10, 2017.
Prior Publication US 2023/0097166 A1, Mar. 30, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 1/00 (2006.01); H04L 5/00 (2006.01)
CPC H04L 1/0041 (2013.01) [H04L 1/0057 (2013.01); H04L 1/0067 (2013.01); H04L 1/0071 (2013.01); H04L 5/0007 (2013.01); H04L 5/0048 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus for wireless communication, the apparatus comprising:
a processor; and
a memory coupled with the processor, the memory storing executable instructions that when executed by the processor cause the processor to effectuate operations comprising:
obtaining a physical broadcast channel (PBCH) payload, wherein the payload is generated by inserting at least 3 bits of a synchronization signal (SS) block timing index followed by a half frame indication bit;
scrambling the PBCH payload based on a first scrambler, the scrambled PBCH payload creating a first sequence, wherein the first scrambler indicates at least 2 bits of the SS block timing index;
polar encoding the first sequence to generate a first encoded sequence;
scrambling the first encoded sequence based on a second scrambler, the scrambled first encoded sequence creating a second encoded sequence;
generating a PBCH signal based on the second encoded sequence;
obtaining a demodulation reference signal (DMRS) sequence, wherein the DMRS sequence is generated by using a sequence generator initialized with the cell identifier and 2 or 3 least significant bits of the SS block timing index;
generating a DMRS based on the DMRS sequence; and
transmitting a SS block comprising the PBCH signal and the DMRS according to the SS block timing index.