Transport Block Sizing for Variable XR Packet Transmission
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Solution Overview
Problem
In extended reality (XR) applications, the use of semi-persistent scheduling (SPS) with fixed transport block sizes leads to resource wastage due to variable data packet sizes, which is exacerbated by the power consumption issues in wearable devices with limited battery capacity.
Innovation Solution
Adopting a data transmission method that determines a first transport block size based on the size of the service data packet and uses indication messages to manage resource allocation efficiently, avoiding waste by indicating whether the data transmission is complete or incomplete.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If semi-persistent scheduling with fixed transport block size is used, then power consumption is reduced through simplified scheduling, but resource wastage increases due to variable data packet sizes
Solution Approach 1:
The patent applies dynamics by making the transport block size adjustable rather than fixed. The network device dynamically determines the transport block size based on the actual size of the service data packet, allowing the system to adapt between power efficiency (smaller TBS) and resource utilization (larger TBS) depending on traffic conditions.
Solution Approach 2:
The patent changes the parameter of transport block size from a fixed value to a variable parameter. By introducing a determination step that selects TBS based on service data packet size, the system optimizes the balance between power consumption and resource wastage through parameter adjustment.
2Device complexity
If fixed transport block size is allocated, then resource allocation is simplified, but efficiency decreases due to mismatch between allocated and actual data sizes
Solution Approach 1:
The patent introduces dynamic adjustment of transport block size based on actual data packet size. The network device determines appropriate TBS values from a set of candidate sizes, creating a dynamic resource allocation mechanism that improves efficiency without requiring complex real-time allocation decisions.
Solution Approach 2:
The patent applies preliminary action by pre-defining a set of candidate transport block sizes. This allows the system to prepare multiple TBS options in advance, selecting the most appropriate one based on service data packet size, thereby simplifying the allocation process while improving efficiency.
3Adaptability or versatility
If transport block size is increased to accommodate variable data packets, then resource coverage is improved, but resource wastage increases for smaller data packets
Solution Approach 1:
The patent changes the transport block size parameter to match the actual data packet size requirements. By selecting from multiple candidate TBS values based on the service data packet size, the system achieves adaptability across different packet sizes while minimizing resource wastage through precise parameter matching.
Solution Approach 2:
The patent applies local quality by allocating transport block sizes that are specifically matched to local data packet size requirements. Instead of using a uniform large TBS for all packets, the system assigns appropriate TBS values locally based on each packet's actual size, reducing wastage while maintaining coverage.
Data Source
AI summary
A data transmission method performed by a terminal, includes: determining a first transport block size; determining a relationship between a size of a service data packet and the first transport block size; and transmitting the service data packet based on the first transport block size, and transmitting an indication message based on the relationship between the size of the service data packet and the first transport block size.