Wireless Relay Path Selection for Stream Data Reliability
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Solution Overview
Problem
Existing wireless communication systems face issues with data loss and transmission delays when transmitting stream data, particularly due to temporary communication disruptions and the need for redundant paths, which complicates the process and increases latency.
Innovation Solution
A control station apparatus that identifies and selects relay communication paths using multiple transmission paths to ensure data is received by multiple communication apparatuses, allowing for reliable data relay and transmission timing determination to maintain continuous communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If transmission path switching is performed after problem detection, then transmission reliability is improved, but communication is momentarily interrupted and stream data transmission cannot be carried out correctly
Solution Approach 1:
The patent establishes multiple relay transmission paths in advance before transmission problems occur. The control station pre-configures alternative paths through relay stations, so when a problem is detected, switching can occur immediately without communication interruption. This preliminary setup of redundant paths eliminates the momentary interruption that would otherwise occur during path switching.
2Reliability
If multiple relay transmission paths are established, then transmission reliability is improved, but device complexity increases
Solution Approach 1:
The patent introduces relay stations as intermediary devices that simplify the overall system architecture. Instead of direct complex multi-path routing between all devices, relay stations act as intermediaries that manage and coordinate multiple transmission paths. This intermediary approach maintains high reliability through redundant paths while reducing overall system complexity by centralizing path management functions.
3Reliability
If retransmission control is implemented between control station and representative relay terminal, then data transmission reliability is improved, but significant delay occurs in data transmission
Solution Approach 1:
The patent segments the transmission system into multiple independent relay paths rather than relying on a single representative relay terminal. By dividing the transmission load across multiple relay stations, the system eliminates the need for retransmission control with a single terminal, thereby maintaining reliability while avoiding the significant delays that would occur with retransmission protocols.
4Ease of manufacture
If terminal stations perform relay transmission, then dedicated relay station requirements are reduced, but control procedure complexity increases
Solution Approach 1:
The patent implements a universal control framework where the control station manages multiple relay terminals through standardized procedures. Terminal stations are designed with multi-functionality, capable of both end-device operations and relay operations. This universality allows terminal stations to perform relay transmission without dedicated relay stations while the control station maintains simplified centralized control, avoiding excessive control procedure complexity.
Data Source
AI summary
A control station apparatus performs wireless communication with a plurality of communication apparatuses and sends data to the communication apparatuses. The control station apparatus receives, from each of the communication apparatuses, identification information of other communication apparatuses with which the communication apparatus is capable of wireless communication; selects, from among the plurality of communication apparatuses, at least one relay apparatus that relays transmission of the data, based on the received identification information; determines a communication timing for the relaying performed by the selected relay apparatus; and notifies the selected relay apparatus of an instruction to perform data relay and the communication timing. The control station selects the relay apparatus so that a communication apparatus that receives the data from the control station apparatus via two or more transmission paths is present.