FIELD: computer equipment.
SUBSTANCE: present disclosure provides methods and apparatus for configuring or pre-configuring random access procedures when there are a plurality of configurable numeric values for one carrier. In some embodiments, a random access numerical value of a wireless device is configured using a system information unit. In other embodiments, the random access numeric value used by the wireless device is implicitly determined based on detection of one or more synchronization signals.
EFFECT: technical result of this invention is higher flexibility of random access message for arrangement of 5G-systems using mixed numerology.
10 cl, 22 dwg
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