	US 12,136,995 B2
	Synchronization signal burst, signal design, and system frame acquisition in new radio
Kyle Jung-Lin Pan, Saint James, NY (US); Fengjun Xi, San Diego, CA (US); Robert L. Olesen, Huntington, NY (US); and Nirav B. Shah, San Diego, CA (US)
Assigned to InterDigital Patent Holdings, Inc., Wilimington, DE (US)
Appl. No. 16/481,166
Filed by InterDigital Patent Holdings, Inc., Wilmington, DE (US)
PCT Filed Feb. 2, 2018, PCT No. PCT/US2018/016551 § 371(c)(1), (2) Date Jul. 26, 2019, PCT Pub. No. WO2018/144790, PCT Pub. Date Aug. 9, 2018.
Claims priority of provisional application 62/556,171, filed on Sep. 8, 2017.
Claims priority of provisional application 62/519,745, filed on Jun. 14, 2017.
Claims priority of provisional application 62/500,752, filed on May 3, 2017.
Claims priority of provisional application 62/454,524, filed on Feb. 3, 2017.
Prior Publication US 2019/0393972 A1, Dec. 26, 2019
Int. Cl. H04J 11/00 (2006.01); H04W 72/30 (2023.01)

CPC H04J 11/0073 (2013.01) [H04J 11/0076 (2013.01); H04W 72/30 (2023.01)]

12 Claims

1. A wireless transmit/receive unit (WTRU), comprising:

a processor configured to:

receive a synchronization signal (SS) block of a plurality of SS blocks comprised in a SS burst set, each of the plurality of SS blocks comprised in the SS burst set comprising a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH) transmission, wherein each respective SS block of the plurality of SS blocks comprised in the SS burst set is associated with a respective SS-block index that identifies the respective SS block within the SS burst set;

determine a first identifier (ID) associated with the PSS of the SS block comprised in the SS burst set;

determine a secondary synchronization signal sequence based on the SSS received in the SS block comprised in the SS burst set, wherein the secondary synchronization signal sequence is associated with a first sequence with a first cyclic shift and a second sequence with a second cyclic shift, and wherein the first cyclic shift uses the first ID determined based on the PSS and a second ID, and the second cyclic shift uses the second ID;

determine the second ID using at least the SSS and the first ID;

determine a physical cell ID (PCI) using the first ID and the second ID; and

determine a SS-block index for the received SS block comprising the PSS, the SSS, and the PBCH of the plurality of SS blocks comprised in the SS burst set based on the PBCH transmission comprised in the received SS block, wherein a scrambling sequence of the PBCH transmission is based on the determined PCI and the SS-block index.

7. A method, comprising:

receiving a synchronization signal (SS) block of a plurality of SS blocks comprised in a SS burst set, each of the plurality of SS blocks comprised in the SS burst set comprising a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH) transmission, wherein each respective SS block of the plurality of SS blocks comprised in the SS burst set is associated with a respective SS-block index that identifies the respective SS block within the SS burst set;

determining a first identifier (ID) associated with the PSS of the SS block comprised in the SS burst set;

determining a secondary synchronization signal sequence based on the SSS received in the SS block comprised in the SS burst set, wherein the secondary synchronization signal sequence is associated with a first sequence with a first cyclic shift and a second sequence with a second cyclic shift, and wherein the first cyclic shift uses the first ID determined based on the PSS and a second ID, and the second cyclic shift uses the second ID;

determining the second ID using at least the SSS and the first ID;

determining a physical cell ID (PCI) a third ID using the first ID and the second ID; and

determining a SS-block index for the received SS block comprising the PSS, the SSS, and the PBCH of the plurality of SS blocks comprised in the SS burst set based on the PBCH transmission comprised in the received SS block, wherein a scrambling sequence of the PBCH transmission is based on the determined PCI and the SS-block index.