A method comprising: in a time-frequency transmission resource comprising a plurality of transmission symbols, each on a plurality of sub-carriers: creating a plurality of subzones of the time-frequency transmission resource, wherein each subzone comprises at least one block of channel units, each block of channel units comprising at least one sub-carrier used for all transmission symbols in the subzone; scheduling at least one user in at least one of the subzones; wherein the method further comprises: grouping two or more of the subzones together to form at least one subzone group; controlling distribution of transmission power over the at least one subzone group; in a telecommunication cell comprising a plurality of sectors, scrambling the arrangement of subzones using sector-specific subzone groups in said at least one of the subzone groups in at least two of the plurality of sectors, wherein, in a first of the sectors, a first one of the subzones is grouped with a second of the subzones to form a first subzone group, wherein, in a second of the sectors, the first subzone is not grouped with the second subzone, wherein a first basic channel unit, BCU, allocation block, BAB, is present in each subzone of the first subzone group, wherein the first BAB comprises a first set of BCUs, wherein the first set of BCUs comprises at least one BCU from each of the first and second subzones of the first subzone group, receiving a first transmission on at least the first BAB. in a time-frequency transmission resource comprising a plurality of transmission symbols, each on a plurality of sub-carriers: creating a plurality of subzones of the time-frequency transmission resource, wherein each subzone comprises at least one block of channel units, each block of channel units comprising at least one sub-carrier used for all transmission symbols in the subzone; scheduling at least one user in at least one of the subzones; wherein the method further comprises: grouping two or more of the subzones together to form at least one subzone group; controlling distribution of transmission power over the at least one subzone group; in a telecommunication cell comprising a plurality of sectors, scrambling the arrangement of subzones using sector-specific subzone groups in said at least one of the subzone groups in at least two of the plurality of sectors, wherein, in a first of the sectors, a first one of the subzones is grouped with a second of the subzones to form a first subzone group, wherein, in a second of the sectors, the first subzone is not grouped with the second subzone, wherein a first basic channel unit, BCU, allocation block, BAB, is present in each subzone of the first subzone group, wherein the first BAB comprises a first set of BCUs, wherein the first set of BCUs comprises at least one BCU from each of the first and second subzones of the first subzone group, receiving a first transmission on at least the first BAB. creating a plurality of subzones of the time-frequency transmission resource, wherein each subzone comprises at least one block of channel units, each block of channel units comprising at least one sub-carrier used for all transmission symbols in the subzone; scheduling at least one user in at least one of the subzones; wherein the method further comprises: grouping two or more of the subzones together to form at least one subzone group; controlling distribution of transmission power over the at least one subzone group; in a telecommunication cell comprising a plurality of sectors, scrambling the arrangement of subzones using sector-specific subzone groups in said at least one of the subzone groups in at least two of the plurality of sectors, wherein, in a first of the sectors, a first one of the subzones is grouped with a second of the subzones to form a first subzone group, wherein, in a second of the sectors, the first subzone is not grouped with the second subzone, wherein a first basic channel unit, BCU, allocation block, BAB, is present in each subzone of the first subzone group, wherein the first BAB comprises a first set of BCUs, wherein the first set of BCUs comprises at least one BCU from each of the first and second subzones of the first subzone group, receiving a first transmission on at least the first BAB. grouping two or more of the subzones together to form at least one subzone group; controlling distribution of transmission power over the at least one subzone group; in a telecommunication cell comprising a plurality of sectors, scrambling the arrangement of subzones using sector-specific subzone groups in said at least one of the subzone groups in at least two of the plurality of sectors, wherein, in a first of the sectors, a first one of the subzones is grouped with a second of the subzones to form a first subzone group, wherein, in a second of the sectors, the first subzone is not grouped with the second subzone, wherein a first basic channel unit, BCU, allocation block, BAB, is present in each subzone of the first subzone group, wherein the first BAB comprises a first set of BCUs, wherein the first set of BCUs comprises at least one BCU from each of the first and second subzones of the first subzone group, receiving a first transmission on at least the first BAB.