MBS Reception Status Feedback for Packet-Loss-Aware Scheduling

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Solution Overview

Problem

Network devices struggle to determine the reception status of terminal devices for multicast broadcast services (MBS), leading to packet loss due to exceeding the terminal's processing capacity when scheduling MBS data.

Innovation Solution

Terminal devices report MBS reception status information to network devices, allowing for dynamic scheduling that considers the terminal's capacity, preventing data overflow and reducing packet loss.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the network device schedules MBS data without considering terminal reception status, then the network can efficiently transmit MBS data to multiple terminals, but the terminal device may exceed its processing capacity resulting in packet loss

Engineering Contradiction:

ImproveMBS data transmission efficiencyVSAvoidMBS data reception reliability

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The terminal device feeds back MBS reception status information to the network device, enabling the network to adjust scheduling decisions based on actual terminal reception capabilities. This feedback mechanism prevents packet loss by ensuring scheduled data matches terminal processing capacity while maintaining efficient multi-terminal transmission.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The network device performs preliminary scheduling based on received MBS reception status information before actual data transmission. By pre-assessing terminal capabilities and configuring appropriate scheduling parameters in advance, the system avoids overwhelming terminals with excessive data while maintaining high transmission efficiency.

Inventive Principle:

Principle #10Preliminary action

2Adaptability or versatility

If the network device increases MBS data scheduling to improve service coverage, then more terminals can receive MBS services, but terminals with limited processing capacity will experience packet loss

Engineering Contradiction:

ImproveMBS service coverageVSAvoidPacket loss in terminals

Core Design Contradiction:

Adaptability or versatilityVSObject-generated harmful factors

Solution Approach 1:

The network device applies different scheduling strategies to different terminals based on their individual MBS reception status information. Terminals with higher processing capacity receive more MBS data while those with limited capacity receive optimized schedules, enabling broad service coverage without causing packet loss in any terminal group.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The scheduling parameters are dynamically adjusted based on MBS reception status information from different terminals. By changing scheduling parameters such as data rate, time resources, and frequency resources according to terminal capabilities, the system expands service coverage while preventing packet loss through customized parameter optimization for each terminal group.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS20260006409A1Method for sending/receiving MBS reception state information and apparatus

Publication Date: 2026.01.01 BEIJING XIAOMI MOBILE SOFTWARE CO LTD

AI summary

A method for sending MBS reception status information. The method includes sending MBS reception status information to a network device.