Dedicated Message Buffers for Random Access Procedures
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Solution Overview
Problem
Current wireless communication systems face challenges in managing data buffers during different random access procedures, leading to confusion and inefficiencies in buffer management, particularly in 5G mobile communication systems with both two-step and four-step random access procedures.
Innovation Solution
A method where a terminal side device utilizes specific message buffers for each random access procedure, allowing it to store and retrieve uplink data efficiently, avoiding the need for data regeneration upon procedure failures or fallbacks, and using counters to manage resource consumption and prevent frequent re-initiations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a terminal side device uses a single shared message buffer for both two-step and four-step random access procedures, then the device complexity is reduced, but buffer management confusion occurs and data transmission reliability deteriorates
Solution Approach 1:
The patent divides the single shared message buffer into separate dedicated buffers: a first message buffer for the two-step random access procedure and a second message buffer for the four-step random access procedure. This segmentation eliminates buffer management confusion by ensuring that data from different procedures are stored and retrieved independently, thereby improving reliability without significantly increasing device complexity.
2Reliability
If the terminal side device stores uplink data in a dedicated message buffer for each random access procedure, then data transmission reliability is improved, but the device complexity increases
Solution Approach 1:
The patent implements segmentation by creating dedicated message buffers for different random access procedures. The first message buffer is specifically for two-step procedure data, while the second message buffer is for four-step procedure data. This clear separation improves reliability by preventing data confusion while maintaining manageable complexity through systematic buffer assignment rules.
Solution Approach 2:
The patent applies local quality by assigning different buffer management characteristics to different procedures. Each message buffer is optimized for its specific procedure type, with dedicated storage and retrieval mechanisms. This allows each buffer to have specialized management rules tailored to its specific random access procedure requirements, improving overall system reliability.
3Loss of energy
If the terminal side device regenerates uplink data after random access procedure failure, then resource consumption is reduced, but data transmission efficiency deteriorates
Solution Approach 1:
The patent applies preliminary action by pre-storing uplink data in dedicated message buffers before random access procedure execution. When a procedure fails or needs to fall back to another procedure type, the uplink data is already prepared and stored in the appropriate buffer, eliminating the need for time-consuming data regeneration. This improves data transmission efficiency while maintaining reasonable resource consumption through selective buffer usage.
4Productivity
If the terminal side device uses separate message buffers for different random access procedures, then data transmission efficiency is improved, but the device complexity increases
Solution Approach 1:
The patent segments the buffer system into procedure-specific buffers, which improves data transmission efficiency by preventing data confusion and enabling direct data retrieval. The complexity increase is managed through clear assignment rules: the first message buffer handles two-step procedure data while the second handles four-step procedure data, creating a systematic and maintainable buffer management approach.
Data Source
AI summary
A random access method is provided including: a terminal side device obtains first uplink data from a first message buffer, wherein the first message buffer is a buffer specific to a first random access procedure, the first random access procedure is a procedure in which the terminal side device sends a first random access request, sends the first uplink data on a first uplink resource, and receives response information, and the response information is a first random access response to the first random access request or a response to the first uplink data. The terminal side device sends the first random access request to a network side device, and sends the first uplink data to the network side device on the first uplink resource. The terminal side device detects downlink control information, wherein the downlink control information indicates a resource of the response information.