Wireless Slot Assignment for Latency-Sensitive Traffic Streams
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Solution Overview
Problem
Existing communication systems in virtual, augmented, and mixed reality environments fail to prioritize latency-sensitive traffic streams effectively, leading to degraded user experiences due to increased latency, which can cause issues like judder and motion sickness.
Innovation Solution
A method is introduced where wireless communication devices send request messages with latency markers to identify latency-sensitive traffic streams, and upon receiving a matching response, these streams are prioritized by allocating specific slots for communication, ensuring lower latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If slot assignment is not implemented for traffic streams, then device complexity is reduced, but latency sensitivity cannot be addressed and quality of service deteriorates
Solution Approach 1:
The communication channel is segmented into multiple slots, and traffic streams are segmented into different categories (latency-sensitive and regular). Each category is assigned to specific slots through the slot assignment mechanism, allowing differentiated service quality without overwhelming system complexity.
Solution Approach 2:
The system changes the parameter of slot assignment to dynamically adjust traffic stream priorities. By modifying which slots are assigned to which traffic streams based on latency sensitivity, the system optimizes quality of service while maintaining manageable complexity through structured parameter management.
2Loss of time
If latency-sensitive traffic is prioritized through slot assignment, then latency is reduced, but channel access complexity increases
Solution Approach 1:
Slots are pre-assigned to traffic streams before actual data transmission occurs. This preliminary assignment of slots to latency-sensitive traffic streams ensures that when data needs to be transmitted, the path is already determined, reducing latency without requiring complex real-time decision-making during channel access.
Solution Approach 2:
The slot assignment is dynamic and can be adjusted based on traffic stream characteristics and network conditions. The system can reassign slots between latency-sensitive and regular traffic streams as needed, providing flexible latency control while maintaining reasonable channel access complexity through adaptive rather than rigid assignment.
Data Source
AI summary
A first wireless communication device may send, to a second wireless communication device, a request message including a traffic stream identifier (TID) and a first value, the first value indicating that a traffic stream between the first wireless communication device and the second wireless communication device and corresponding to the TID is latency sensitive. The first wireless communication device may receive, from the second wireless communication device responsive to the request message, a response message including a second value indicating whether the corresponding traffic stream between the first wireless communication device and the second wireless communication device is latency sensitive, compare the second value and the first value, determine, based on a result of the comparing, that the request message has been accepted, and communicate, with the second wireless communication device responsive to the determining, the corresponding traffic stream as a prioritized traffic stream instead of a regular traffic stream.