Compression Buffer Reset for Cache Synchronization Failures
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current LTE and LTE-Advanced technologies lack a solution for handling checksum errors between out-of-sync compression and decompression buffers, leading to unsuccessful data packet decompression during uplink data transmission.
Innovation Solution
A method and device for handling out-of-sync buffers, where the receiving device notifies the transmitting device of a mismatch, prompting a reset of both buffers, allowing for subsequent data packet transmission using reset buffers to maintain synchronization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the UE and eNB maintain compression and decompression buffers independently to achieve higher compression ratio, then data transmission efficiency is improved, but checksum errors occur when radio link fails causing buffer desynchronization
Solution Approach 1:
The receiving device detects checksum errors in received data packets and sends feedback notifications to the transmitting device. When a checksum error is detected, the receiving device notifies the transmitting device to reset the compression buffer, ensuring both buffers remain synchronized despite independent maintenance for compression efficiency
Solution Approach 2:
The system changes the state of the compression and decompression buffers from synchronized to reset state when checksum errors occur. The transmitting device resets its compression buffer upon receiving notification, and the receiving device resets its decompression buffer accordingly, allowing the system to recover from desynchronization while maintaining high compression ratios
2Device complexity
If no solution is provided for handling checksum errors in UDC technology, then device complexity remains low, but data packet decompression fails when buffers are out of sync
Solution Approach 1:
The system performs preliminary actions by establishing a notification mechanism before checksum errors cause permanent data loss. When the receiving device detects a checksum error, it immediately notifies the transmitting device to reset buffers, preventing further decompression failures without requiring complex error recovery protocols
Solution Approach 2:
The transmitting and receiving devices serve themselves by autonomously resetting their respective buffers when desynchronization is detected. The transmitting device resets its compression buffer upon receiving notification, and the receiving device independently resets its decompression buffer, eliminating the need for external intervention or complex coordination mechanisms
Data Source
AI summary
Disclosed in the present disclosure are a processing method and device for a cache synchronous exception, for solving the problem that no solution for a compression check failure is available in the prior art. According to embodiments of the present disclosure, when caches are out of synchronization, a caching failure notification message is sent to a transmitting device; a reset processing is carried out on a compressed cache area, and a reset instruction is sent; and then subsequent data packet transmission is carried out by using reset cache areas. In the present disclosure, after it is determined that the caches are out of synchronization, the caching failure notification message is sent; the transmitting device performs a reset processing on the compressed cache area, and notifies a receiving device to carry out a reset processing on a decompressed cache area.