US 12,445,695 B2
Cross-layer optimization in XR-aware ran to limit temporal error propagation
Jozsef Gabor Nemeth, Cambridge (GB); Abdellatif Salah, Cambridge (GB); Mohammed S Aleabe Al-Imari, Cambridge (GB); and Chia-Chun Hsu, Hsinchu (TW)
Assigned to MEDIATEK SINGAPORE PTE. LTD., Singapore (SG)
Appl. No. 18/690,397
Filed by MediaTek Singapore Pte. Ltd., Singapore (SG)
PCT Filed Sep. 29, 2022, PCT No. PCT/CN2022/122656
§ 371(c)(1), (2) Date Mar. 8, 2024,
PCT Pub. No. WO2023/051707, PCT Pub. Date Apr. 6, 2023.
Claims priority of provisional application 63/250,280, filed on Sep. 30, 2021.
Prior Publication US 2024/0380953 A1, Nov. 14, 2024
Int. Cl. H04N 21/81 (2011.01); H04L 47/2416 (2022.01); H04L 47/56 (2022.01); H04N 21/647 (2011.01); H04W 28/02 (2009.01); H04N 19/30 (2014.01)
CPC H04N 21/816 (2013.01) [H04L 47/2416 (2013.01); H04L 47/56 (2013.01); H04N 21/6473 (2013.01); H04W 28/0236 (2013.01); H04W 28/0268 (2013.01); H04N 19/30 (2014.11)] 17 Claims
OG exemplary drawing
 
1. A method, comprising:
communicating, by a network, an extended reality (XR) traffic with a user equipment (UE) with frame error concealment to limit a duration of temporal error propagation; and
transmitting, by the network, a report of failure or a request for retransmission to the UE in an event of a network transmission failure;
wherein the communicating the XR traffic with the UE with the frame error concealment comprises communicating the XR traffic with the UE using multi-layer encoding multiplexing and pose prediction multiplexing;
wherein the pose prediction multiplexing involves:
receiving from the UE in uplink (UL) first and second pose predictions identified by a first index and a second index, respectively;
receiving a pair of encoded video frames, video slices, video blocks or application data units (ADUs) from an Application Function (AF);
receiving from the UE in uplink (UL) a selection of either the first index or the second index; and
transmitting to the UE one of the pair of encoded video frames, video slices, video blocks or ADUs corresponding to the selected one of the first index and second index as the next video frame, video slice, video block or ADU.