US 12,328,740 B2
Downlink transmission in TDD supporting feNB-IoTs
Seunghee Han, San Jose, CA (US); Debdeep Chatterjee, San Jose, CA (US); and Qiaoyang Ye, San Jose, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Nov. 28, 2022, as Appl. No. 17/994,835.
Application 17/994,835 is a continuation of application No. 16/638,086, granted, now 11,516,789, previously published as PCT/US2018/046241, filed on Aug. 10, 2018.
Claims priority of provisional application 62/586,727, filed on Nov. 15, 2017.
Claims priority of provisional application 62/565,793, filed on Sep. 29, 2017.
Claims priority of provisional application 62/544,654, filed on Aug. 11, 2017.
Claims priority of provisional application 62/544,256, filed on Aug. 11, 2017.
Claims priority of provisional application 62/544,262, filed on Aug. 11, 2017.
Prior Publication US 2023/0089890 A1, Mar. 23, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 72/23 (2023.01); H04L 1/18 (2023.01); H04L 5/00 (2006.01); H04L 27/26 (2006.01); H04W 72/0446 (2023.01)
CPC H04W 72/23 (2023.01) [H04L 1/18 (2013.01); H04L 5/0053 (2013.01); H04L 27/2657 (2013.01); H04W 72/0446 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
a user equipment (UE),
decoding, from a base station, a narrowband physical downlink control channel (NPDCCH), wherein the NPDCCH indicates a number of narrowband internet-of-things (NB-IoT) downlink subframes for a downlink scheduling delay of a narrowband physical downlink shared channel (NPDSCH) in one or more radio frames configured for time-division duplexing (TDD) operation;
determining the downlink scheduling delay based on a count of valid NB-IoT downlink subframes elapsed since an end of the NPDCCH; and
decoding, from the base station and based on the downlink scheduling delay, a system information block type-1 narrowband (SIB1-NB) in the NPDSCH and that is transmitted on every other radio frame, wherein a starting radio frame number for SIB1-NB repetitions is based on a physical cell ID (PCID), a system frame number (SFN), and a number of repetitions, R.