US 12,245,072 B2
Supporting a large number of devices in wireless communications
Xiaofei Wang, North Caldwell, NJ (US); Lei Wang, San Diego, CA (US); Sudheer A. Grandhi, Pleasanton, CA (US); and Guodong Zhang, Woodbury, NY (US)
Assigned to INTERDIGITAL PATENT HOLDINGS, INC., Wilmington, DE (US)
Filed by INTERDIGITAL PATENT HOLDINGS, INC., Wilmington, DE (US)
Filed on Dec. 12, 2023, as Appl. No. 18/537,598.
Application 18/537,598 is a continuation of application No. 17/993,187, filed on Nov. 23, 2022, granted, now 11,843,970.
Application 17/993,187 is a continuation of application No. 16/854,588, filed on Apr. 21, 2020, granted, now 11,516,701, issued on Nov. 29, 2022.
Application 16/854,588 is a continuation of application No. 15/850,841, filed on Dec. 21, 2017, granted, now 10,667,169, issued on May 26, 2020.
Application 15/850,841 is a continuation of application No. 13/785,842, filed on Mar. 5, 2013, granted, now 9,854,469, issued on Dec. 26, 2017.
Claims priority of provisional application 61/696,607, filed on Sep. 4, 2012.
Claims priority of provisional application 61/669,274, filed on Jul. 9, 2012.
Claims priority of provisional application 61/607,354, filed on Mar. 6, 2012.
Prior Publication US 2024/0121660 A1, Apr. 11, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 28/02 (2009.01); H04W 52/02 (2009.01); H04W 72/23 (2023.01)
CPC H04W 28/0278 (2013.01) [H04W 52/0216 (2013.01); H04W 52/0219 (2013.01); H04W 72/23 (2023.01); Y02B 70/30 (2013.01); Y02D 30/70 (2020.08)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
receiving a time value at a station;
receiving a traffic indication map (TIM) element at the station, the TIM element indicating a positive indication for a group of stations having traffic that is pending;
determining an offset for the station as a function of a position of the station within the group of stations; and
determining a medium access backoff time for the station based on the determined offset and the received time value.