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US 12,445,695 B2Granted
Cross-layer optimization in XR-aware ran to limit temporal error propagation
AssigneeMediaTek Singapore Pte. Ltd.
InventorsJozsef Gabor Nemeth, Abdellatif Salah, Mohammed S Aleabe Al-Imari, Chia-Chun Hsu
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Abstract
A network communicates an extended reality (XR) traffic with a user equipment (UE) with frame error concealment to limit a duration of temporal error propagation. The network also transmits a report of failure or a request for retransmission to the UE in an event of a network transmission failure.
Claims17
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.
7 more elements
An apparatus implementable in a network, comprising:
- a transceiver configured to communicate with one or more network nodes of the network;
- and
- a processor coupled to the transceiver and configured to perform operations comprising:
- communicating, via the transceiver, an extended reality (XR) traffic with a user equipment (UE) with frame error concealment to limit a duration of temporal error propagation;
- and
- transmitting, via the transceiver, 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.
10 more elements
Dependencies are inferred from the claim text.