Title:
METHOD AND APPARATUS FOR ENHANCING DISTRIBUTED UNIT CHANGE PROCEDURE IN WIRELESS COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/245239
Kind Code:
A1
Abstract:
A method and apparatus for enhancing a gNB distributed unit (DU) change procedure to manage radio resource allocation in a wireless communication system is provided. A gNB central unit (gNB-CU), which performs an inter-gNB-DU mobility, receives, from a source gNB-DU, information on a radio link control (RLC) protocol data unit (PDU), which is to be transmitted to a user equipment (UE) at the source gNB-DU but undelivered, and transmits, to a target gNB-DU, the information on the RLC PDU. The gNB CU transmits, to the target gNB-DU, a PDCP PDU based on the information on the RLC PDU, after receiving the information on the RLC PDU.
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Inventors:
BYUN DAEWOOK (KR)
XU JIAN (KR)
KIM SEOKJUNG (KR)
XU JIAN (KR)
KIM SEOKJUNG (KR)
Application Number:
PCT/KR2019/007255
Publication Date:
December 26, 2019
Filing Date:
June 17, 2019
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H04W36/00; H04W36/32; H04W76/27; H04W88/08
Foreign References:
| US20180083688A1 | 2018-03-22 |
Other References:
INTEL CORPORATION: "Enhancements for option 2, to support inter-DU mobility", 3GPP TSG RAN WG3 #95BIS R3-171069,, 25 March 2017 (2017-03-25), Spokane, US, XP051255146
VODAFONE GROUP: "Further considerations of the PDCP Sequence COUNT", 3GPP TSG RAN WG3 #99BIS, R3-183092, 11 May 2018 (2018-05-11), Sanya, China, XP051527259
LG ELECTRONICS INC.: "TP for CPUP_Split BL CR for TS 38.401 ): Issues on RRC-INACTIVE state in CU -DU split", 3GPP TSG RAN WG3 #100, R3-183064, 11 May 2018 (2018-05-11), Busan, Korea, XP051527234
SAMSUNG: "PDCP/RLC Sequence Number Size for NR", 3GPP TSG RAN WG2 #97, R2-1703734, 25 March 2017 (2017-03-25), Spokane, USA, XP051254636
VODAFONE GROUP: "Further considerations of the PDCP Sequence COUNT", 3GPP TSG RAN WG3 #99BIS, R3-183092, 11 May 2018 (2018-05-11), Sanya, China, XP051527259
LG ELECTRONICS INC.: "TP for CPUP_Split BL CR for TS 38.401 ): Issues on RRC-INACTIVE state in CU -DU split", 3GPP TSG RAN WG3 #100, R3-183064, 11 May 2018 (2018-05-11), Busan, Korea, XP051527234
SAMSUNG: "PDCP/RLC Sequence Number Size for NR", 3GPP TSG RAN WG2 #97, R2-1703734, 25 March 2017 (2017-03-25), Spokane, USA, XP051254636
Attorney, Agent or Firm:
ENVISION PATENT & LAW FIRM (KR)
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