US 11,856,651 B2
Packet generation and distribution method for supporting carrier aggregation between base stations, and device therefor
Joondoo Kim, Seoul (KR); Hoon Huh, Yongin-si (KR); and Kyoungil Min, Seoul (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Jul. 9, 2021, as Appl. No. 17/371,845.
Application 17/371,845 is a continuation of application No. 16/488,783, granted, now 11,064,563, issued on Jul. 13, 2021, previously published as PCT/KR2018/002487, filed on Feb. 28, 2018.
Claims priority of application No. 10-2017-0026172 (KR), filed on Feb. 28, 2017.
Prior Publication US 2021/0337627 A1, Oct. 28, 2021
Int. Cl. H04W 80/08 (2009.01); H04W 76/15 (2018.01); H04L 1/1867 (2023.01); H04L 5/00 (2006.01); H04W 28/04 (2009.01); H04W 28/06 (2009.01); H04W 80/02 (2009.01); H04W 88/08 (2009.01); H04W 72/12 (2023.01)
CPC H04W 80/08 (2013.01) [H04L 1/1874 (2013.01); H04L 5/0055 (2013.01); H04W 28/04 (2013.01); H04W 28/06 (2013.01); H04W 72/12 (2013.01); H04W 76/15 (2018.02); H04W 80/02 (2013.01); H04W 88/08 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method performed by a base station in a wireless communication system supporting a carrier aggregation operation, the method comprising:
generating packet data convergence protocol (PDCP) protocol data units (PDUs);
allocating a first radio link control (RLC) sequence number (SN) to a first PDCP PDU of the generated PDCP PDUs;
identifying whether a second PDCP PDU of the generated PDCP PDUs and the first PDCP PDU are associated with a same RLC layer;
allocating a second RLC SN to the second PDCP PDU, in case that the second PDCP PDU and the first PDCP PDU are not associated with the same RLC layer;
determining whether a size of accumulated PDCP PDUs to which the first RLC SN is allocated is larger than a predetermined value, in case that the second PDCP PDU and the first PDCP PDU are associated with the same RLC layer;
allocating the first RLC SN to the second PDCP PDU, in case that the size of the accumulated PDCP PDUs to which the first RLC SN is allocated is equal to or less than the predetermined value; and
allocating the second RLC SN to the second PDCP PDU, in case that the size of the accumulated PDCP PDUs to which the first RLC SN is allocated is larger than the predetermined value.