Patent ID: 9055587
Filing Date: 2015-06-09
Classification: H04W

Abstract:
1. A method for realizing buffer status reporting, comprising: when an evolved Node B (eNB) determines whether a user equipment should use an original buffer status level format, which is also referred as buffer status report (BSR) table or use one of newly-added BSR tables for buffer status reporting, the user equipment being informed by the eNB of which BSR table is to be used, after receiving a determination result from the eNB, and reporting a buffer status of a logical channel by using the original BSR table or one of the newly-added BSR tables indicated by the determination result; wherein, the newly-added BSR tables comprise a plurality of data-amount-range boundary values which are higher than a maximum data-amount-range boundary value in the original BSR table; when the user equipment determines whether to use the original BSR table or use one of the newly-added BSR tables according to a data amount of a buffer in a logic channel group, the user equipment selecting a BSR table to be used from the original BSR table and the newly-added BSR tables, and reporting a buffer status of a logical channel by using the selected BSR table; wherein, the step of the user equipment selecting a BSR table to be used according to a buffer data amount in a logic channel group, and reporting a buffer status report of the logic channel group comprises: when the user equipment only reports the buffer status report of one logic channel group, if it is judged that the buffer data amount of the logic channel group is smaller than the maximum data-amount-range boundary value of the original BSR table, reporting the buffer status report of the logic channel group using the original BSR table; if it is judged that the buffer data amount of the logic channel group is not smaller than the maximum data-amount-range boundary value of the original BSR table, reporting the buffer status report of the logic channel group using the newly-added BSR table; when the user equipment reports the buffer status reports of four logic channel groups simultaneously, if it is judged that a maximum value of the buffer data amounts of the logic channel groups is smaller than the maximum data-amount-range boundary value of the original BSR table, reporting the buffer status reports of the logic channel groups using the original BSR table; if it is judged that maximum value of the buffer data amounts of the logic channel groups is not smaller than the maximum data-amount-range boundary value of the original BSR table, reporting the buffer status reports of the logic channel groups using the newly-added BSR table.