US 12,127,045 B2
Connected mode mobility in new radio
Joseph M. Murray, Schwenksville, PA (US); Pascal M. Adjakple, Great Neck, NY (US); and Stephen E. Terry, Northport, NY (US)
Assigned to IPLA HOLDINGS INC., New York, NY (US)
Filed by IPLA Holdings Inc., New York, NY (US)
Filed on Aug. 9, 2023, as Appl. No. 18/446,500.
Application 18/446,500 is a continuation of application No. 17/541,473, filed on Dec. 3, 2021, granted, now 11,765,626.
Application 17/541,473 is a continuation of application No. 16/637,016, granted, now 11,228,948, issued on Jan. 18, 2022, previously published as PCT/US2018/046050, filed on Aug. 9, 2018.
Claims priority of provisional application 62/580,639, filed on Nov. 2, 2017.
Claims priority of provisional application 62/564,452, filed on Sep. 28, 2017.
Claims priority of provisional application 62/543,599, filed on Aug. 10, 2017.
Prior Publication US 2023/0388865 A1, Nov. 30, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 36/00 (2009.01); H04L 5/00 (2006.01); H04W 36/04 (2009.01); H04W 56/00 (2009.01); H04W 74/0833 (2024.01); H04W 76/27 (2018.01); H04W 72/044 (2023.01); H04W 76/10 (2018.01)
CPC H04W 36/0005 (2013.01) [H04L 5/0048 (2013.01); H04W 36/04 (2013.01); H04W 56/001 (2013.01); H04W 74/0833 (2013.01); H04W 76/27 (2018.02); H04W 72/046 (2013.01); H04W 76/10 (2018.02)] 10 Claims
OG exemplary drawing
 
1. An apparatus in a network comprising circuitry configured to:
receive a message via a radio resource control (RRC) signaling,
wherein the message comprises:
RACH-ConfigCommon IE for delivering parameters related to common physical random access channel (PRACH) configuration, and
RACH-ConfigDedicated IE for delivering parameters related to dedicated PRACH configuration being specific to a target cell,
wherein the RACH-ConfigDedicated IE comprises a first field for storing a first resource list for performing contention free random access (CFRA) with a synchronization signal block (SSB) and a second field for storing a second resource list for performing CFRA with a channel state information reference signal (CSI-RS), the first resource list comprising a set of SSB configuration IDs and associated PRACH resources, the second resource list comprising a set of CSI-RS configuration IDs and associated PRACH resources, and
wherein the RACH-ConfigCommon IE comprises a third field for storing a first reference signal received power (RSRP) threshold for determining whether one or more reference signals are available for performing a random access;
upon determining that at least one reference signal of the one or more reference signals meets the first RSRP threshold for performing the random access:
select one of the PRACH resources associated with the at least one reference signal based on the first resource list or the second resource list; and
transmit a PRACH preamble using the one selected PRACH resource,
wherein:
the one or more reference signals comprises one or more SSBs and the first RSRP threshold comprises a SSB threshold, or
the one or more reference signals comprises one or more CSI-RSs and the first RSRP threshold comprises a CSI-RS threshold.