Wireless Communication Apparatus Volatile Nonvolatile Memory Segmentation
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Solution Overview
Problem
High-speed wireless communication in mobile terminals using high-frequency bands like millimeter-wave and terahertz-wave bands can lead to data congestion due to slower system bus and storage device speeds, and temporary obstacles can cause communication disconnection, resulting in data loss when the terminal is powered off.
Innovation Solution
An information processing system with a wireless communication apparatus, an access point, and a management server that manages content lifetime by storing difference data in nonvolatile memory and deleting volatile memory content upon disconnection, ensuring data integrity and efficient frequency utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If high-frequency band wireless communication (millimeter-wave, terahertz-wave) is used to achieve super-high-speed data communication, then communication speed is improved, but data congestion occurs due to slower system bus and storage device speeds
Solution Approach 1:
The patent segments the storage system into two distinct storage devices: volatile memory for high-speed temporary storage and non-volatile memory for reliable data retention. This segmentation allows the system to handle high-speed wireless data transmission by using volatile memory for rapid data intake while preventing congestion by immediately transferring stable data to non-volatile memory, thus maintaining frequency utilization efficiency without sacrificing communication speed.
2Speed
If content is cached in volatile memory for high-speed access, then data access speed is improved, but data is lost when the terminal is powered off or communication is disconnected
Solution Approach 1:
The patent introduces a dual-memory system where volatile memory serves as a high-speed intermediary for temporary data storage and non-volatile memory acts as a reliable intermediary for permanent data retention. The control unit coordinates between these two intermediaries, transferring data from volatile to non-volatile memory when communication is stable, thus achieving both fast data access through volatile memory and data retention reliability through non-volatile memory.
Solution Approach 2:
The system performs preliminary actions by continuously monitoring communication status and proactively transferring data from volatile memory to non-volatile memory before communication disconnection or power loss occurs. This preliminary data preservation action ensures that even if the terminal is powered off or communication is interrupted, previously transferred data remains safe in non-volatile memory, thus achieving data retention reliability while maintaining the speed benefits of volatile memory caching.
3Reliability
If communication between mobile terminal and access point is disconnected due to temporary obstacles, then communication reliability deteriorates, but data in volatile memory is lost when terminal is powered off
Solution Approach 1:
The patent implements beforehand cushioning by preparing a non-volatile memory storage space in advance and establishing a data transfer mechanism that operates during stable communication periods. This cushioning mechanism ensures that data is progressively moved from volatile to non-volatile memory before communication disruptions occur, creating a safety buffer that prevents data loss when communication is disconnected or the terminal is powered off, thus addressing both communication reliability issues and data retention concerns.
Data Source
AI summary
Embodiments include providing content requested by a user via an access point capable of wireless communication. Aspects include receiving the content provided by the management server and storing the content provided by the management server into a volatile memory provided in the wireless communication apparatus. Aspects also include storing difference data into a nonvolatile memory if it is requested to change the content stored in the volatile memory and monitoring a state of communication connection with the access point and whether or not a packet giving an instruction to hold the content has been received. Aspects further include deleting the content stored in the volatile memory if communication with the access point is disconnected or if the packet is unreceived.