US 12,244,538 B2
Methods and apparatus for dynamic acknowledgement list selection in detection of uplink control channel formats
Yuanbin Guo, Mountain House, CA (US)
Assigned to Marvell Asia Pte Ltd., Singapore (SG)
Filed by Marvell Asia Pte, Ltd., Singapore (SG)
Filed on Apr. 24, 2023, as Appl. No. 18/138,614.
Application 18/138,614 is a division of application No. 17/119,875, filed on Dec. 11, 2020, granted, now 11,700,104.
Application 17/119,875 is a continuation of application No. 16/148,796, filed on Oct. 1, 2018, granted, now 10,892,876, issued on Jan. 12, 2021.
Claims priority of provisional application 62/663,887, filed on Apr. 27, 2018.
Prior Publication US 2023/0261845 A1, Aug. 17, 2023
Int. Cl. H04W 72/0446 (2023.01); H03M 13/13 (2006.01); H04L 5/00 (2006.01); H04W 72/21 (2023.01); H04W 72/542 (2023.01); H04W 84/12 (2009.01); H04W 84/18 (2009.01)
CPC H04L 5/0057 (2013.01) [H03M 13/136 (2013.01); H04L 5/0055 (2013.01); H04W 72/0446 (2013.01); H04W 72/21 (2023.01); H04W 72/542 (2023.01)] 35 Claims
OG exemplary drawing
 
1. An apparatus for wireless network communications, comprising:
a channel estimator configured to generate a symbol-level tree indicating channel energy in response to dynamic acknowledgement (“ACK”) hypothesis symbols, a selected data symbol, and a pilot symbol;
a metric calculator coupled to the channel estimator and configured to calculate a channel energy metric from the channel energy;
a searcher coupled to the metric calculator and operable to search the channel energy metric to determine top four branches; and
a decision circuit coupled to the searcher and configured to select a most likely ACK candidate from the top four branches.