TDLS Low-Latency Data Exchange via Shared TXOP Scheduling

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Solution Overview

Problem

Existing peer-to-peer (P2P) communication systems face challenges in reducing transmission delay and improving efficiency during low-latency service data transmission, particularly due to restrictions on transmission capacity and delays caused by network congestion.

Innovation Solution

A communication method and electronic device that utilize TDLS devices to exchange low-latency service data within a shared TXOP slot, facilitated by identifying capabilities through wireless frames and utilizing R-TWT schedules to optimize data transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If P2P communication is used to eliminate access points, then transmission efficiency is improved, but transmission delay cannot be sufficiently reduced for low-latency services

Engineering Contradiction:
Improvetransmission efficiencyVSAvoidtransmission delay
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The patent applies preliminary action by establishing R-TWT schedules in advance that reserve specific time slots for low-latency service data transmission. The AP device pre-configures these schedules before data transmission occurs, ensuring that TDLS devices have predetermined opportunities to exchange data without waiting for network conditions or contention resolution, thereby reducing transmission delay while maintaining efficient P2P communication

Inventive Principle:
Principle #10Preliminary action

2Loss of time

If R-TWT schedules are implemented to ensure low-latency transmission, then transmission delay is reduced, but transmission capacity restrictions remain

Engineering Contradiction:
Improvetransmission delayVSAvoidtransmission capacity
Core Design Contradiction:
Loss of timeVSProductivity

Solution Approach 1:

The patent applies dynamics by enabling flexible data exchange within the R-TWT scheduled time slots. TDLS devices can dynamically exchange data bidirectionally during their allocated slots rather than following rigid unidirectional transmission patterns. This dynamic approach allows both devices to utilize the full transmission capacity during scheduled periods, eliminating capacity restrictions while maintaining the low-latency benefits of pre-scheduled transmission windows

Inventive Principle:
Principle #15Dynamics

3Device complexity

If unidirectional data transmission is used between TDLS devices, then implementation is simplified, but transmission efficiency decreases

Engineering Contradiction:
Improveimplementation complexityVSAvoidtransmission efficiency
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The patent applies continuity of useful action by enabling continuous bidirectional data exchange between TDLS devices within their allocated R-TWT time slots. Rather than requiring separate transmission opportunities for each direction, the system allows both devices to transmit and receive data continuously during the scheduled period, maintaining high transmission efficiency while keeping the implementation relatively simple through centralized schedule management by the AP

Inventive Principle:
Principle #20Continuity of useful action

Data Source

PatentEP4701249A1Communication method, electronic device, and storage medium
Publication Date: 2026.02.25 BEIJING XIAOMI MOBILE SOFTWARE CO LTD
  • EP4701249A1 patent drawingFigure 1
  • EP4701249A1 patent drawingFigure 2
  • EP4701249A1 patent drawingFigure 3~5

AI summary

Embodiments of the present disclosure relate to the technical field of mobile communications, and provide a communication method, an electronic device, and a storage medium. The communication method is applied to a first TDLS device. The method comprises: determining a first wireless frame, the first wireless frame comprising first identification information, the first identification information indicating whether the first TDLS device supports a target capability, and the target capability comprising low-latency data exchange of service data with a second TDLS device in a time slot of a first TXOP shared by an access point device AP; sending the first wireless frame. The embodiments of the present disclosure can provide a low-latency transmission means service data.