A method at a terminal device (104, 10n, 900, 1100) for wireless communication, comprising: - determining respective buffer size, BS, tables for at least one logical channel group, LCG, based on at least one reference BS table, wherein the at least one LCG is configured by a network device (110, 1000, 1200) for the terminal device, wherein the determining respective BS tables for the at least one LCG based on at least one reference BS table comprises: -- generating the respective BS tables based on the at least one reference BS table and respective scaling factors associated with the at least one LCG, wherein the respective scaling factors are determined by the terminal device or signaled to the terminal device, and wherein the at least one reference BS table is associated with respective reference numerologies/transmission time-interval, TTI, lengths, BSR report interval, or hybrid automatic repeat request, HARQ, round trip times, RTTs, and the respective scaling factors are determined based on the reference numerologies/TTI lengths, BSR report interval, or HARQ RTTs and respective numerologies/TTI lengths, BSR report interval, or HARQ RTTs associated with the at least one LCG; - generating a buffer status report, BSR, for the at least one LCG; and - transmitting the BSR to the network device, wherein the BSR comprising a LCG identity, ID, field and a BS field for corresponding LCG, wherein the size of the LCG ID field is configured based on at least one of: number of LCGs in a network, number of LCGs used by the terminal device, and number of LCGs in a subset of LCGs selected by the network device. - determining respective buffer size, BS, tables for at least one logical channel group, LCG, based on at least one reference BS table, wherein the at least one LCG is configured by a network device (110, 1000, 1200) for the terminal device, wherein the determining respective BS tables for the at least one LCG based on at least one reference BS table comprises: -- generating the respective BS tables based on the at least one reference BS table and respective scaling factors associated with the at least one LCG, wherein the respective scaling factors are determined by the terminal device or signaled to the terminal device, and wherein the at least one reference BS table is associated with respective reference numerologies/transmission time-interval, TTI, lengths, BSR report interval, or hybrid automatic repeat request, HARQ, round trip times, RTTs, and the respective scaling factors are determined based on the reference numerologies/TTI lengths, BSR report interval, or HARQ RTTs and respective numerologies/TTI lengths, BSR report interval, or HARQ RTTs associated with the at least one LCG; -- generating the respective BS tables based on the at least one reference BS table and respective scaling factors associated with the at least one LCG, wherein the respective scaling factors are determined by the terminal device or signaled to the terminal device, and - generating a buffer status report, BSR, for the at least one LCG; and - transmitting the BSR to the network device, wherein the BSR comprising a LCG identity, ID, field and a BS field for corresponding LCG, number of LCGs in a network, number of LCGs used by the terminal device, and number of LCGs in a subset of LCGs selected by the network device.