METHOD FOR CALCULATING AN AMOUNT OF DATA AVAILABLE FOR TRANSMISSION AND A DEVICE THEREFOR

摘要

The present invention relates to a wireless communication system. More specifically, the present invention relates to a method and a device for calculating an amount of data available for transmission in the wireless communication system, the method comprising: receiving ratio for calculating amount of Data Available for Transmission (DAT) in a PDCP (Packet Data Convergence Protocol) entity; calculating an amount of DAT when data is arrived in the PDCP entity; and setting a first amount of DAT as the calculated amount of DAT and a second amount of DAT as ‘zero’, if the calculated amount of DAT is less than a threshold, wherein the first amount of DAT is for the first BS and the second amount of DAT is for the second BS.

主权项

1. A method for a user equipment (UE) operating in a wireless communication system comprising a first base station (BS) and a second BS, the method comprising:
generating, by a Packet Data Convergence Protocol (PDCP) entity, an uplink data available for transmission in the PDCP entity; Receiving, by the PDCP entity, a threshold value for an uplink data split operation from an upper layer; checking whether or not an amount of the uplink data available for transmission in the PDCP entity is less than the threshold value; and indicating, by the PDCP entity, the uplink data available for transmission to a first Medium Access Control (MAC) entity for the first BS only, if the amount of uplink data available for transmission in the PDCP entity is less than the threshold value.