USER EQUIPMENTS, BASE STATIONS AND METHODS

Abstract

A UE is described. The UE may comprise RRC layer processing circuitry configured to acquire the first RRC message in SIB. The first RRC message is a configuration of repetition for Msg4 HARQ-ACK. The UE may comprise MAC layer processing circuitry configured to send the first MAC PDU. The first MAC PDU include a MAC sub-header and MAC SUD containing UL CCCH. If the first RRC message is not acquired, the MAC sub-header consists of 1 bit for the first reserved field, 1 bit for the second reserved field and 6 bits for LCID field. If the first RRC message is acquired, the MAC sub-header consists of 1 bit for the reserved field, 1 bit for a X field and 6 bits for LCID field. The X field may indicate whether or not the UE requests repetition of Msg4 HARQ-ACK. Alternatively, The X field may indicate whether or not the UE reports that the UE is capability of repetition of Msg4 HARQ-ACK.

CPC Classifications