Techniques are described for an indication of a buffer status reporting from multiple types of BSR, selection and/or indication of a buffer size (BS) level table, design of a BS level table, and/or determination of data volume of an uplink shared channel. An example wireless communication method includes transmitting, by a communication device, a buffer status reporting (BSR), wherein the BSR includes an index that indicates a data amount for transmission by the communication device, wherein the index corresponding to the data amount is from a table, and wherein each index in the table is associated with one maximum data amount.