METHODS AND APPARATUS OF HARQ OPERATION FOR TRANSMISSION OF MULTICAST BROADCAST SERVICE

WIPO Patent Application WO/2022/063204

A1

Apparatus and methods are provided for HARQ operation with a UE combined HARQ process for the MBS. In one novel aspect, the UE established a UE combined HARQ process to receive HARQ transmissions for the MBS from both the PTM leg and the PTP leg. In one embodiment, the HARQ transmission received from the PTM leg is from a network PTM HARQ process and the HARQ transmission received from the PTP leg is from a network PTP HARQ process for the UE. The new data indicator (NDI) or the redundant version (RV) value is used to indicate a HARQ retransmission. In one embodiment, the network PTM HARQ process and the network PTP HARQ process uses the same HARQ ID. In another embodiment, HARQ ID information is carried in DCI for the PTM leg and the PTP leg for MBS data packets.

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WANG XUELONG (CN)

PCT/CN2021/120149

March 31, 2022

September 24, 2021

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

H04W4/06; H04W72/04

CN1859603A	2006-11-08
US20100278093A1	2010-11-04

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BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)

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