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This depends on where you are located. These plants are hardy in zones 5-9. If you are outside of this zone, then you will do best to bring the plant indoors. If you are within these zones, then you will just leave the plant to fend for itself outdoors.
This article will give you more information: https://www.gardeningknowhow.com/ornamental/flowers/ice-plant/growing-hardy-ice-plant.htm
Ice plant is hardy in zones 5-9. It is important to avoid soggy soil during winter as the plant may rot. Avoid piling wet snow on top of it. If the plant has been growing all summer, winter mulching isn't necessary unless you are north of zone 5. There may be some winter die-back but the plant will recover. If you are in zone 4, mulch over the top of the plant with shredded leaves or hay. Snow is a great insulator and protects the plant from desiccating winter winds. A dry, cold winter in zone 4 spells trouble.