Radio Terminal Test Apparatus Bus Data Division
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Solution Overview
Problem
Conventional radio terminal test apparatuses face challenges in transmitting and receiving measurement data due to increased data volumes resulting from advancements in radio communication techniques, such as carrier aggregation, which exceed the memory limits of the data transmission bus, leading to incomplete processing of measurement results.
Innovation Solution
Incorporating a division determination unit within the radio signal processing unit to assess the necessity of data division and divide the measurement data accordingly, allowing for multiple transmissions via the bus to the communication control unit, thereby ensuring reliable data transmission without hardware replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If measurement data is transmitted in a single batch via the bus, then transmission speed is improved, but the data volume exceeds the memory limits of the bus
Solution Approach 1:
The measurement data is divided into multiple segments or chunks, each fitting within the memory capacity of the bus. The division determination unit calculates the appropriate segment size based on the total data volume and bus memory limits, then transmits each segment sequentially through the bus to the communication control unit, avoiding overflow while maintaining efficient transmission.
Solution Approach 2:
The data transmission is performed in periodic batches rather than as a single continuous stream. The system transmits data in discrete time intervals or volume intervals, allowing the bus to process and buffer data in manageable portions, then proceeds to the next transmission cycle once the current batch is successfully transferred.
2Reliability
If the memory capacity of the bus is increased to accommodate larger data volumes, then data transmission reliability is improved, but hardware replacement cost increases
Solution Approach 1:
The system dynamically adjusts the data transmission strategy based on the actual data volume and bus capacity. The division determination unit calculates optimal segmentation parameters in real-time, allowing the system to adapt to varying measurement conditions without requiring physical hardware changes. This dynamic approach ensures reliable transmission within existing hardware constraints.
Solution Approach 2:
The system changes operational parameters such as data segment size, transmission batch count, and buffer allocation to match the bus memory capacity. By adjusting these software-controlled parameters rather than hardware specifications, the system achieves reliable data transmission for varying data volumes without incurring hardware replacement costs.
Data Source
AI summary
A radio terminal test apparatus that tests radio communication performance of a radio terminal, the apparatus including: a radio signal processing unit that performs measurement processing on a radio signal transmitted from the radio terminal and acquires measurement data; a communication control unit that transmits and receives data to and from the radio signal processing unit; and a bus that connects the radio signal processing unit and the communication control unit. The radio signal processing unit includes a division determination unit that determines necessity of division of the measurement data, and, when the division determination unit determines that the measurement data needs to be divided, the measurement data is divided, and divided pieces of the measurement data are division-transmitted a plurality of times from the radio signal processing unit to the communication control unit via the bus.