METHODS AND APPARATUS OF DYNAMIC SWITCH BETWEEN MULTICAST AND UNICAST FOR NR MULTICAST SERVICE

Title:

METHODS AND APPARATUS OF DYNAMIC SWITCH BETWEEN MULTICAST AND UNICAST FOR NR MULTICAST SERVICE

Document Type and Number:

WIPO Patent Application WO/2021/142654

Kind Code:

A1

Abstract:

Apparatus and methods are provided to support the dynamic switch between multicast and unicast for a particular NR multicast service. In one novel aspect, the switch order is sent from the Base Station to the UE via specific MAC-CE or RRC Reconfiguration message. The UE feedbacks the next packet in terms of RLC layer PDU or PDCP layer PDU he expects to receive. A temporary DRB is established to ensure the service continuity for dynamic switch between multicast and unicast.

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Inventors:

WANG XUELONG (CN)

Application Number:

PCT/CN2020/072215

Publication Date:

July 22, 2021

Filing Date:

January 15, 2020

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Assignee:

MEDIATEK SINGAPORE PTE LTD (SG)
WANG XUELONG (CN)

International Classes:

H04W72/00

Domestic Patent References:

WO2018150259A1	2018-08-23
WO2018150259A1	2018-08-23
WO2016029938A1	2016-03-03

Foreign References:

CN103797873A	2014-05-14
CN103797873A	2014-05-14
CN101331779A	2008-12-24
CN101331779A	2008-12-24
CN105472548A	2016-04-06
CN105992155A	2016-10-05

Attorney, Agent or Firm:

BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)

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