US 11,889,368 B2
Method and apparatus for performing physical layer mobility procedures
J. Patrick Tooher, Montreal (CA); Ghyslain Pelletier, Montreal (CA); Benoit Pelletier, Roxboro (CA); Paul Marinier, Brossard (CA); Yugeswar Deenoo, Chalfont, PA (US); and Martino M. Freda, Laval (CA)
Assigned to InterDigital Patent Holdings, Inc., Wilmington, DE (US)
Appl. No. 16/089,899
Filed by InterDigital Patent Holdings, Inc., Wilmington, DE (US)
PCT Filed Mar. 30, 2017, PCT No. PCT/US2017/024936
§ 371(c)(1), (2) Date Sep. 28, 2018,
PCT Pub. No. WO2017/173037, PCT Pub. Date Oct. 5, 2017.
Claims priority of provisional application 62/334,630, filed on May 11, 2016.
Claims priority of provisional application 62/315,080, filed on Mar. 30, 2016.
Prior Publication US 2020/0305038 A1, Sep. 24, 2020
Int. Cl. H04W 36/00 (2009.01); H04W 84/04 (2009.01); H04W 24/10 (2009.01); H04W 74/08 (2009.01); H04W 48/16 (2009.01)
CPC H04W 36/0085 (2018.08) [H04W 24/10 (2013.01); H04W 36/0055 (2013.01); H04W 48/16 (2013.01); H04W 74/0833 (2013.01); H04W 84/045 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method implemented by a Wireless Transmit/Receive Unit (WTRU), the method comprising:
receiving a configuration message from via a serving cell, wherein the configuration message comprises a configuration information for a candidate cell and a measurement condition for handover (HO) to the candidate cell, wherein the configuration information for the candidate cell comprises reference signal information for measurements associated with the measurement condition, and wherein the reference signal information indicates that the measurements associated with the measurement condition are to be performed on a synchronization signal of the candidate cell;
determining to initiate HO to the candidate cell based on the measurement condition for HO to the candidate cell being satisfied;
transmitting a preamble using physical random access channel (PRACH) resources of the candidate cell based on the measurement condition for HO to the candidate cell being satisfied;
receiving a random access response (RAR), the RAR comprising scheduling information for an uplink transmission; and
transmitting the uplink transmission, the uplink transmission scheduled by the RAR comprising WTRU context information.