PDU Set ID Filtering for XR Wireless Resource Efficiency
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in supporting extended reality (XR) data transmission, particularly in managing packet data units (PDUs) where the correlation between PDUs is unknown at the physical layer, leading to increased processing power and resource usage.
Innovation Solution
The implementation of a method where user equipment (UE) receives a PDU set ID associated with a set of PDUs, allowing it to determine whether to transmit or monitor PDUs based on their inclusion in the set, refraining from processing if PDUs are scheduled beyond a packet delay budget (PDB) or upon receiving a different PDU set ID, thereby optimizing resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE monitors or transmits all PDUs without identification, then complete data reception is ensured, but processing power and resource usage increase
Solution Approach 1:
The patent segments PDUs into groups identified by PDU set IDs. The UE receives control information containing a PDU set ID that identifies a specific group of PDUs. Instead of treating all PDUs uniformly, the UE segments them into distinct sets and processes only the relevant set identified by the control information, thereby reducing processing power while maintaining complete data reception for the intended data unit.
Solution Approach 2:
The control information itself carries the PDU set ID that enables the UE to autonomously identify which PDUs belong to the current data unit. The system provides self-service by embedding the identification mechanism within the control information, allowing the UE to automatically filter and process only relevant PDUs without external intervention, thus reducing unnecessary processing.
2Reliability
If the UE processes all scheduled PDUs, then data completeness is maintained, but resource efficiency decreases
Solution Approach 1:
By segmenting PDUs into identifiable sets using PDU set IDs, the patent enables the UE to process only the specific set indicated by control information. This segmentation allows the UE to maintain data completeness for the intended data unit while improving resource efficiency by avoiding processing of PDUs belonging to other sets, thus resolving the contradiction between reliability and productivity.
Solution Approach 2:
The patent implements partial action by having the UE process only the necessary subset of PDUs (those belonging to the identified PDU set) rather than all scheduled PDUs. This partial processing approach maintains data completeness for the relevant data unit while improving resource efficiency by eliminating unnecessary processing of other PDUs.
3Reliability
If the UE monitors PDUs scheduled beyond PDB, then no data is missed, but processing overhead increases
Solution Approach 1:
The control information provides preliminary identification of the PDU set ID before the UE processes the PDUs. This preliminary action allows the UE to pre-determine which PDUs are relevant to the current data unit and filter out PDUs scheduled beyond the packet delay budget. By performing this identification in advance, the UE reduces processing overhead while maintaining reliable data reception for within-budget PDUs.
Solution Approach 2:
The patent extracts the PDU set ID from control information and uses it to filter out PDUs that are scheduled beyond the packet delay budget. By taking out and utilizing the identification mechanism, the UE can selectively process only relevant PDUs within the PDB, reducing processing overhead while maintaining data reception reliability for timely PDUs.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. The method may include a user equipment (UE) receiving first control information that includes a first packet data unit (PDU) set identifier (ID) associated with a set of different PDUs that collectively represent a data unit for decoding. Upon receiving the first control information, the UE may identify a PDU is a part of the set of different PDUs that corresponds to the first PDU set ID based on the first control information and determine whether to include the PDU in communications with a network entity based on the PDU being part of the set of different PDUs.