QoS Parameters in R-TWT Setup Frames for Latency
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Solution Overview
Problem
Existing wireless communication systems face challenges in providing quality of service (QoS) parameters for restricted target wake time (R-TWT) operations in wireless local area networks (WLANs, particularly in ensuring low latency for latency-sensitive traffic, which is crucial for immersive experiences in augmented and virtual reality applications, as legacy systems may interfere with reserved time periods intended for such traffic.
Innovation Solution
The implementation of devices and methods that determine and transmit QoS parameters associated with traffic identifiers (TIDs) within R-TWT schedules, using R-TWT setup frames that include QoS information elements and traffic specification elements, to prioritize and reserve time periods for latency-sensitive traffic, and dynamically adjust these parameters based on changes in traffic patterns, thereby protecting reserved service periods from interference by legacy devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If R-TWT schedules are implemented to reserve time periods for latency-sensitive traffic, then latency is reduced and QoS is improved, but legacy devices may interfere with reserved time periods
Solution Approach 1:
The patent applies preliminary action by including QoS parameters in the R-TWT setup frame during the initial scheduling phase. This allows devices to be pre-configured with quality of service parameters before actual data transmission begins, ensuring that legacy devices are aware of reserved time periods in advance and can avoid interfering with them.
Solution Approach 2:
The patent uses QoS parameters as an intermediary mechanism to communicate service period reservations to all devices in the network. These parameters act as a mediator that translates the R-TWT schedule into understandable instructions for legacy devices, enabling them to coexist without interfering with latency-sensitive traffic during reserved periods.
2Reliability
If QoS parameters are included in R-TWT setup frames, then device complexity increases, but QoS delivery is enabled
Solution Approach 1:
The patent merges QoS parameters directly into the existing R-TWT setup frame structure rather than creating separate signaling messages. This integration approach enables QoS delivery functionality while minimizing additional device complexity by reusing established frame formats and combining multiple functions into a single unified structure.
3Adaptability or versatility
If traffic pattern monitoring is implemented to dynamically adjust QoS parameters, then adaptability is improved, but processing overhead increases
Solution Approach 1:
The patent implements dynamics by enabling devices to monitor traffic patterns and dynamically adjust QoS parameters based on observed conditions. The system transitions from static pre-configured parameters to dynamic adaptation, allowing QoS settings to evolve in response to changing network conditions while maintaining reasonable processing overhead through efficient monitoring mechanisms.
Data Source
AI summary
A device may one or more processors. The one or more processors may be configured to determine a first set of quality of service (QoS) parameters associated with a first traffic identifier (TID) relating to a restricted target wake time (R-TWT) schedule in a wireless local area network (WLAN). The one or more processors may be configured to wirelessly transmit, via a transceiver, a first frame including the first set of QoS parameters.