METHOD FOR ENHANCEMENT OF PHYSICAL RANDOM ACCESS CHANNEL TRANSMISSION AND RECEPTION OF RANDOM ACCESS RESPONSE

Abstract: a system and method for physical random access channel (prach) transmission and reception of random access (ra) response in new radio (nr) network. a user equipment (ue) sends to a gnodeb (gnb), an n times msg 1, on n consecutive random access channel (rach) occasion (ros) with a same tx beam or a plurality of different tx beams in a ra attempt; and after the n times transmissions, the ue starts an random access response (rar) window and monitors all n random access-radio network temporary identities (ra-rntis) to receive a network response. upon successful reception of an rar message, the ue determines a best transmission beam.

Inventor(s): Jianying Liu, Yan Wang, Fan Yang, Kuiyuan Li, Yan Lu, Miao Zhang

CPC Classification: H04W74/0833 (Random access procedures, e.g. with 4-step access)

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