Buffer Status Indicator in Mobile Data Block Generation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In mobile communication systems, terminals face inefficiencies in requesting and managing uplink radio resources due to the need to convey buffer status information, which does not directly relate to actual payload data, leading to potential resource wastage and reduced system efficiency.
Innovation Solution
A method is introduced to generate a data block that includes a buffer status indicator, indicating changes in the data buffer status associated with a group identifier, which is transmitted from the terminal to the base station, allowing for efficient allocation of radio resources based on actual data availability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If buffer status information is transmitted to request uplink radio resources, then resource allocation is enabled, but radio resources are wasted due to transmission of non-payload control information
Solution Approach 1:
The patent merges the buffer status indicator with the actual payload data by embedding it in the first field of the data block structure. This combination allows the control information and data to be transmitted together in a single uplink transmission, eliminating the need for separate resource allocations and reducing overall radio resource consumption.
Solution Approach 2:
The first field of the data block structure serves multiple functions: it carries both the buffer status indicator (control information) and the actual payload data. This multi-functionality allows a single transmission to fulfill both resource allocation requests and data delivery, improving efficiency and reducing resource wastage.
2Loss of information
If separate transmission of buffer status indicator and payload data is used, then resource allocation control is precise, but transmission overhead and resource consumption increase
Solution Approach 1:
The patent combines the buffer status indicator and payload data into a single integrated data block structure. The buffer status indicator is placed in the first field along with the payload data, allowing both information types to be transmitted simultaneously in one uplink message, thereby reducing the total quantity of radio resources consumed.
3Adaptability or versatility
If traditional MAC PDU structure is used, then protocol compatibility is maintained, but system efficiency is reduced due to separate resource allocation for control information
Solution Approach 1:
The patent introduces a dynamic data block structure that can adapt to different transmission scenarios. The first field can flexibly carry both buffer status indicators and payload data, allowing the system to optimize resource usage while maintaining compatibility with existing protocol frameworks through the use of standard field formats.
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
Disclosed is a method for generating a lower layer data block to be transmitted from a specific layer in a transmitting side to a receiving side in a mobile communication system. The method includes receiving an upper layer data block from an upper layer and generating a lower layer data block including at least part of the upper layer data block and a buffer status indicator indicating a status change of a data buffer associated with a group identifier corresponding to the upper layer data block. According to this data block generation method, states of buffers carrying upper layer data blocks are transmitted to a base station using minimum radio resources, thereby increasing system efficiency.