US 11,985,538 B2
Method and apparatus for classifying and processing SDAP control PDU in next generation mobile communication system
Seungri Jin, Suwon-si (KR); Soenghun Kim, Suwon-si (KR); and Sangyeob Jung, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on May 12, 2023, as Appl. No. 18/316,976.
Application 18/316,976 is a continuation of application No. 17/532,847, filed on Nov. 22, 2021, granted, now 11,653,254.
Application 17/532,847 is a continuation of application No. 16/755,467, granted, now 11,184,792, issued on Nov. 23, 2021, previously published as PCT/KR2019/005538, filed on May 9, 2019.
Claims priority of application No. 10-2018-0057803 (KR), filed on May 21, 2018.
Prior Publication US 2023/0284080 A1, Sep. 7, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 28/02 (2009.01); H04L 45/74 (2022.01); H04L 69/04 (2022.01); H04W 28/10 (2009.01)
CPC H04W 28/0268 (2013.01) [H04L 45/74 (2013.01); H04L 69/04 (2013.01); H04W 28/10 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method performed by a transmitter in a wireless communication system, the method comprising:
identifying whether a packet data convergence protocol (PDCP) service data unit (SDU) corresponds to a service data access protocol (SDAP) control protocol data unit (PDU) or an SDAP data PDU;
when the PDCP SDU corresponds to the SDAP control PDU:
when an integrity protection is configured, calculating a message authentication code-integrity (MAC-I) based on the SDAP control PDU; and
concatenating the MAC-I, the SDAP control PDU, and a PDCP header to obtain a PDCP PDU, wherein a ciphering is not applied to the SDAP control PDU, and a header compression is not performed for the SDAP control PDU; and
when the PDCP SDU corresponds to the SDAP data PDU:
when the header compression is configured, performing the header compression for the PDCP SDU;
when the integrity protection is configured, calculating the MAC-I based on the PDCP SDU and concatenating the MAC-I and the SDAP data PDU;
performing the ciphering except for an SDAP header; and
concatenating the PDCP header to obtain the PDCP PDU; and
delivering, to a lower layer, the PDCP PDU.