Title:
SWITCHING BETWEEN UNICAST AND MULTICAST BY CONSIDERING DEGRADED USER EXPERIENCE IN A WIRELESS COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/149933
Kind Code:
A1
Abstract:
A method and apparatus for switching between unicast and multicast by considering degraded user experience in a wireless communication system is described. A CU of a RAN node receives, from the DU, a first switching message including status of the MBS for each of the first wireless device and the second wireless device. A CU of a RAN node determines to switch the first transmission to a third transmission only for the first wireless device for the MBS, based on the received status of the MBS.
Inventors:
BYUN DAEWOOK (KR)
JUNG SUNGHOON (KR)
XU JIAN (KR)
KIM SEOKJUNG (KR)
JUNG SUNGHOON (KR)
XU JIAN (KR)
KIM SEOKJUNG (KR)
Application Number:
PCT/KR2020/019300
Publication Date:
July 29, 2021
Filing Date:
December 31, 2020
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H04W76/40; H04W4/06; H04W76/20; H04W88/08
Domestic Patent References:
| WO2019179602A1 | 2019-09-26 |
Foreign References:
| KR20190008384A | 2019-01-23 |
Other References:
TENCENT: "New Solution for mode switching between unicast and multicast", 3GPP DRAFT; S2-2000605, vol. SA WG2, 7 January 2020 (2020-01-07), Incheon, Korea, pages 1 - 4, XP051842663
VIVO, TENCENT: "Solution for unicast switch to multicast based on network control", 3GPP DRAFT; S2-2001358, vol. SA WG2, 13 January 2020 (2020-01-13), Seoul, Korea, pages 1 - 4, XP051844100
AT&T: "Status update on Rel-17 5MBS work in 3GPP and potential impacts on public safety", 3GPP DRAFT; S6-200059, vol. SA WG6, 5 January 2020 (2020-01-05), Hyderabad, India, pages 1 - 3, XP051841502
VIVO, TENCENT: "Solution for unicast switch to multicast based on network control", 3GPP DRAFT; S2-2001358, vol. SA WG2, 13 January 2020 (2020-01-13), Seoul, Korea, pages 1 - 4, XP051844100
AT&T: "Status update on Rel-17 5MBS work in 3GPP and potential impacts on public safety", 3GPP DRAFT; S6-200059, vol. SA WG6, 5 January 2020 (2020-01-05), Hyderabad, India, pages 1 - 3, XP051841502
Attorney, Agent or Firm:
ENVISION PATENT & LAW FIRM (KR)
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