ðɪs ɪz ˈɔfən ɛnhˈænst baɪ ˈɔːlsoʊ pɚfˈɔːɹmɪŋ tˌiːdˌiːˌɛmˈeɪ ænd tʃˈeɪndʒɪŋ ðɪ ˌæləkˈeɪʃən pˌiəɹɪˈɑːdɪkli sˌoʊ ðæt dˈɪfɹənt jˈuːzɚz ɡɛt dˈɪfɹənt sˈʌbbˈændz æt dˈɪfɹənt tˈaɪmz.
This is often enhanced by also performing TDMA and changing the allocation periodically so that different users get different sub-bands at different times.