US 11,943,654 B2
Method and apparatus for transmitting buffer size report including dual bitmap information by wireless node in wireless communication system
Gyeongcheol Lee, Seoul (KR); and Sunyoung Lee, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/311,075
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Nov. 19, 2019, PCT No. PCT/KR2019/015812
§ 371(c)(1), (2) Date Jun. 4, 2021,
PCT Pub. No. WO2020/138721, PCT Pub. Date Jul. 2, 2020.
Claims priority of application No. 10-2018-0168740 (KR), filed on Dec. 24, 2018.
Prior Publication US 2022/0046464 A1, Feb. 10, 2022
Int. Cl. H04W 28/02 (2009.01)
CPC H04W 28/0278 (2013.01) 9 Claims
OG exemplary drawing
 
1. A method for transmitting a buffer status report (BSR) by a wireless node in a wireless communication system, the method comprising:
generating the BSR including a first bitmap; and
transmitting the BSR to a network,
wherein each bit of the first bitmap indicates whether a corresponding second bitmap is present or not in the BSR,
wherein each bit of at least one second bitmap which is present in the BSR indicates whether buffer size information of a corresponding logical channel group (LCG) is present or not in the BSR,
wherein generating the BSR comprises:
setting at least one bit of the first bitmap to a first value indicating that the corresponding second bitmap is present in the BSR, when at least one LCG associated with the corresponding second bitmap has data available for transmission.