Discontinuous Information Transmission in TDD Systems

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Solution Overview

Problem

In Time Division Duplex (TDD) scenarios, the lack of continuous downlink or uplink resources due to time division multiplexing limits the implementation of complete information transmission that requires continuous resource occupation.

Innovation Solution

An information transmission method and apparatus that implement discontinuous transmission by receiving at least one information block and obtaining first data, which includes a wake-up signal or backscatter communication information, to enable efficient data transmission in a TDD framework.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If time division multiplexing is used for uplink and downlink, then resource utilization is improved, but continuous information transmission capability deteriorates

Engineering Contradiction:
Improveresource utilizationVSAvoidcontinuous transmission capability
Core Design Contradiction:
ProductivityVSDuration of action of stationary object

Solution Approach 1:

The patent segments information transmission into multiple information blocks that can be transmitted discontinuously across different time slots. Each information block contains segmented data that can be reassembled at the receiver, enabling transmission without requiring continuous resource occupation. This resolves the contradiction by allowing high resource utilization through TDD while maintaining complete information transmission capability through segmentation and reassembly.

Inventive Principle:
Principle #1Segmentation

2Loss of time

If discontinuous transmission is implemented, then resource occupation time is reduced, but transmission completeness deteriorates

Engineering Contradiction:
Improveresource occupation timeVSAvoidtransmission completeness
Core Design Contradiction:
Loss of timeVSLoss of information

Solution Approach 1:

The patent implements feedback mechanisms where the receiver sends acknowledgment information back to the transmitter about received information blocks. This feedback enables the transmitter to know which blocks were successfully received and which need retransmission, ensuring complete information delivery even with discontinuous transmission. The feedback loop guarantees transmission completeness while allowing time efficiency through selective retransmission only when necessary.

Inventive Principle:
Principle #23Feedback

3Adaptability or versatility

If information is split into multiple blocks, then transmission flexibility is improved, but system complexity deteriorates

Engineering Contradiction:
Improvetransmission flexibilityVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent designs information blocks with universal structures that can serve multiple functions: carrying data segments, including error detection codes, and supporting both initial transmission and retransmission. The standardized block structure with consistent formatting and identification fields simplifies processing at both transmitter and receiver ends, reducing system complexity despite the multi-block transmission scheme. This universal design enables transmission flexibility while maintaining manageable system complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS20250184895A1Information transmission method and apparatus, receiving end, and sending end
Publication Date: 2025.06.05 VIVO MOBILE COMM CO LTD
  • US20250184895A1 patent drawing
  • US20250184895A1 patent drawing
  • US20250184895A1 patent drawing

AI summary

This application provides an information transmission method and apparatus, a receiving end, and a sending end. The information transmission method includes: a receiving end receives at least one information block; and the receiving end obtains first data based on the at least one information block. The first data includes at least one of the following: a wake-up signal or information of backscatter communication.