Title:
METHOD AND APPARATUS FOR CHANGING PDCP VERSION
Document Type and Number:
WIPO Patent Application WO/2019/074297
Kind Code:
A1
Abstract:
Provided is a method for changing, by a user equipment (UE), packet data convergence protocol (PDCP) version. The method may include: receiving a security mode command message, which includes a first security algorithm configuration for a PDCP of a first system and a second security algorithm configuration for a PDCP of a second system, from a base station (BS); deriving a first security key for the PDCP of the first system, based on the first security algorithm configuration; when the security mode command message passes an integrity protection check based on the first security key, changing the PDCP version from the PDCP of the first system to the PDCP of the second system; deriving a second security key for the PDCP of the second system, based on the second security algorithm configuration; and transmitting a security mode complete message, based on the second security key, to the BS.
Inventors:
BYUN BOKYUNG (KR)
LEE YOUNGDAE (KR)
JO GEUMSAN (KR)
LEE YOUNGDAE (KR)
JO GEUMSAN (KR)
Application Number:
PCT/KR2018/011972
Publication Date:
April 18, 2019
Filing Date:
October 11, 2018
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H04W12/10; H04W12/04; H04W36/00; H04W76/16; H04W88/06
Foreign References:
| US20170215225A1 | 2017-07-27 | |||
| US20150358813A1 | 2015-12-10 |
Other References:
SAMSUNG: "Lossless PDCP version change between LTE and NR", R2-1709028, 3GPP TSG-RAN WG2 MEETING #99, 12 August 2017 (2017-08-12), Berlin, Germany, XP051318821
SAMSUNG: "PDCP operations during PDCP version change in EN-DC", R2-1711146, 3GPP TSG-RAN WG2 2017 RAN2#99BIS MEETING, 29 September 2017 (2017-09-29), Prague, CZ, XP051343154
QUALCOMM INCORPORATED: "Security algorithms for NR PDCP at EN-DC capable eNB", R2-1711517, 3GPP TSG-RAN WG2 MEETING #99BIS, 29 September 2017 (2017-09-29), Prague, Czech Republic, XP051343487
QUALCOMM INCORPORATED: "Considerations on PDCP version change", R2-1711672, 3GPP TSG-RAN WG2 MEETING #99BIS, 29 September 2017 (2017-09-29), Prague, Czech Republic, XP051343631
See also references of EP 3695636A4
SAMSUNG: "PDCP operations during PDCP version change in EN-DC", R2-1711146, 3GPP TSG-RAN WG2 2017 RAN2#99BIS MEETING, 29 September 2017 (2017-09-29), Prague, CZ, XP051343154
QUALCOMM INCORPORATED: "Security algorithms for NR PDCP at EN-DC capable eNB", R2-1711517, 3GPP TSG-RAN WG2 MEETING #99BIS, 29 September 2017 (2017-09-29), Prague, Czech Republic, XP051343487
QUALCOMM INCORPORATED: "Considerations on PDCP version change", R2-1711672, 3GPP TSG-RAN WG2 MEETING #99BIS, 29 September 2017 (2017-09-29), Prague, Czech Republic, XP051343631
See also references of EP 3695636A4
Attorney, Agent or Firm:
ENVISION PATENT & LAW FIRM (KR)
Download PDF:
Previous Patent: ROBOT HAND
Next Patent: OPTICAL SKIN DIAGONOSIS DEVICE, LIGHT EMITTING UNIT PROVIDED IN DERMATOSCOPE DEVICE, AND DERMATOSCOP...
Next Patent: OPTICAL SKIN DIAGONOSIS DEVICE, LIGHT EMITTING UNIT PROVIDED IN DERMATOSCOPE DEVICE, AND DERMATOSCOP...