US 11,057,935 B2
Random access process in new radio
Hyoungsuk Jeon, Oakton, VA (US); and Esmael Hejazi Dinan, Herndon, VA (US)
Assigned to Comcast Cable Communications, LLC, Philadelphia, PA (US)
Filed by Comcast Cable Communications, LLC, Philadelphia, PA (US)
Filed on Mar. 22, 2018, as Appl. No. 15/933,295.
Claims priority of provisional application 62/475,028, filed on Mar. 22, 2017.
Claims priority of provisional application 62/475,039, filed on Mar. 22, 2017.
Claims priority of provisional application 62/475,045, filed on Mar. 22, 2017.
Prior Publication US 2018/0279375 A1, Sep. 27, 2018
Int. Cl. H04W 74/08 (2009.01); H04W 72/14 (2009.01); H04L 5/00 (2006.01)
CPC H04W 74/0833 (2013.01) [H04W 72/14 (2013.01); H04L 5/001 (2013.01); H04L 5/0023 (2013.01); H04L 5/0048 (2013.01)] 38 Claims
OG exemplary drawing
 
1. A method comprising:
transmitting, by a wireless device and to a base station, a preamble associated with one or more transport blocks;
receiving, by the wireless device, a media access control (MAC) packet data unit comprising:
one or more MAC subheaders, wherein a first MAC subheader of the one or more MAC subheaders comprises a random access preamble identifier (RAPID) of the preamble; and
one or more random access responses (RARs), wherein each RAR of the one or more RARs is associated with a MAC subheader of the one or more MAC subheaders;
determining, based on a field in the first MAC subheader:
a size of a first RAR, of the one or more RARs, associated with a random access procedure; and
a type of the first RAR of the one or more RARs,
wherein a type of the random access procedure is one of a plurality of types of random access procedures comprising at least a two-step random access procedure and a four-step random access procedure; and
determining, based on the MAC packet data unit, that the random access procedure has completed.