Title:
METHOD AND APPARATUS FOR DETERMINING TO SWITCH BETWEEN UNICAST AND MULTICAST IN A WIRELESS COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/149936
Kind Code:
A1
Abstract:
A method and apparatus for determining to switch between unicast and multicast in a wireless communication system is provided. A CU of a RAN node provides, via the DU, the MBS by using a first transmission to the wireless device. A CU of a RAN node receives, from the DU, measurement report for the MBS generated by the wireless device. A CU of a RAN node determines whether to switch the first transmission to a second transmission for the MBS based on the measurement report. A CU of a RAN node provides, via the DU, the MBS by using the second transmission to the wireless device.
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/KR2020/019309
Publication Date:
July 29, 2021
Filing Date:
December 31, 2020
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H04W76/40; H04W4/06; H04W24/10; H04W76/20; H04W88/08
Foreign References:
| KR20170005101A | 2017-01-11 |
Other References:
DAVID VARGAS, JORDI J. GIMENEZ, MIKKO SÄILY, DAVID NAVRÁTIL, ATHUL PRASAD, FASIL B. TESEMA, PETER SANDERS, WEI GUO, DE MI, CARLOS : "RAN Logical Architecture and Interfaces for 5G-Xcast", 28 February 2019 (2019-02-28), XP055646813, Retrieved from the Internet
MIKKO SÄILY, DAVID VARGAS (BBC); HEIKKI KOKKINEN (FAIRSPECTRUM); VOLKER PAULI, FASIL TESEMA, CHRISTIANE DIETRICH (NOMOR); PETER S: "Broadcast and Multicast Communication Enablers for the Fifth-Generation of Wireless Systems Deliverable D3.4 RAT Protocols and Radio Resource Management in 5G-Xcast", 31 July 2019 (2019-07-31), pages 1 - 109, XP055685218, Retrieved from the Internet
QUALCOMM INCORPORATED, NOKIA, NOKIA SHANGHAI BELL: "Solution: Integrated Multicast and Unicast Transport with Full Separation of MBS Service", 3GPP DRAFT; S2-2001427, vol. SA WG2, 16 January 2020 (2020-01-16), Incheon, South Korea, pages 1 - 7, XP051844169
HUAWEI, HISILICON, TENCENT, ZTE, SAMSUNG: "Key Issue: Mode switch and Session continuity", 3GPP DRAFT; S2-1909950 WAS 09104 KI SERVICE CONTINUITY, vol. SA WG2, 11 October 2019 (2019-10-11), Split, Croatia, pages 1 - 1, XP051796023
See also references of EP 4094541A4
MIKKO SÄILY, DAVID VARGAS (BBC); HEIKKI KOKKINEN (FAIRSPECTRUM); VOLKER PAULI, FASIL TESEMA, CHRISTIANE DIETRICH (NOMOR); PETER S: "Broadcast and Multicast Communication Enablers for the Fifth-Generation of Wireless Systems Deliverable D3.4 RAT Protocols and Radio Resource Management in 5G-Xcast", 31 July 2019 (2019-07-31), pages 1 - 109, XP055685218, Retrieved from the Internet
QUALCOMM INCORPORATED, NOKIA, NOKIA SHANGHAI BELL: "Solution: Integrated Multicast and Unicast Transport with Full Separation of MBS Service", 3GPP DRAFT; S2-2001427, vol. SA WG2, 16 January 2020 (2020-01-16), Incheon, South Korea, pages 1 - 7, XP051844169
HUAWEI, HISILICON, TENCENT, ZTE, SAMSUNG: "Key Issue: Mode switch and Session continuity", 3GPP DRAFT; S2-1909950 WAS 09104 KI SERVICE CONTINUITY, vol. SA WG2, 11 October 2019 (2019-10-11), Split, Croatia, pages 1 - 1, XP051796023
See also references of EP 4094541A4
Attorney, Agent or Firm:
ENVISION PATENT & LAW FIRM (KR)
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