Wireless Random Access Feedback for Collision Reduction
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Solution Overview
Problem
Random access procedures in wireless communications can interfere with each other, leading to unsuccessful or delayed communications due to collisions.
Innovation Solution
A wireless device initiates an access procedure by sending a message, such as a random access preamble, and responds to a report request from a base station, providing indications about message transmission attempts to adjust access parameters and reduce potential collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a random access procedure is initiated by a wireless device, then communication establishment is attempted, but collisions with other access procedures occur leading to unsuccessful or delayed communications
Solution Approach 1:
The base station sends a report request to the wireless device after receiving the random access preamble. The wireless device responds with an indication message containing information about its transmission attempt (e.g., whether the preamble was successfully received). This feedback mechanism allows the wireless device to adjust its access parameters and avoid retransmitting if unnecessary, thereby reducing collisions and improving communication reliability.
Solution Approach 2:
The patent applies dynamics by making the access parameters adjustable based on feedback information. The wireless device can dynamically modify its access behavior (such as timing, parameters, or channel selection) based on the report request and indication message, transforming a static random access process into a dynamic adaptive one that responds to network conditions.
2Productivity
If multiple wireless devices initiate random access procedures simultaneously, then communication opportunities increase, but collisions lead to delayed communications
Solution Approach 1:
The base station sends the report request before the wireless device completes its access procedure. This preliminary feedback allows the wireless device to prepare appropriate responses and adjust parameters in advance, enabling faster subsequent communications and reducing overall delay while maintaining high throughput.
Solution Approach 2:
By implementing feedback through the report request and indication message, the system enables multiple devices to efficiently manage their access procedures. The feedback mechanism allows devices to learn from previous attempts and adjust their behavior, reducing collisions and minimizing time loss while maintaining high communication productivity.
Data Source
AI summary
Wireless communications for access procedures are described. One or more messages may indicate request for information regarding an access procedure, such as a random access procedure. Based on the request, a wireless device may transmit one or more reports associated with the access procedure, indicating results of one or more access procedures.