Joint DCI Indication for TB Scheduling and MCS Mapping

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Solution Overview

Problem

Existing MTC technologies face large signaling overhead in the scheduling process of information transmission.

Innovation Solution

Implement a method and apparatus that use joint indication information to indicate the mapping relationship between the quantity of transmission blocks (TB), resource allocation mode, and modulation coding strategy (MCS), reducing the need for separate indications in DCI fields.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If separate indication fields are used for TB quantity, resource allocation mode, and MCS in DCI, then each parameter can be indicated independently and precisely, but the signaling overhead increases

Engineering Contradiction:
Improveparameter indication precisionVSAvoidsignaling overhead
Core Design Contradiction:
Measurement precisionVSQuantity of substance

Solution Approach 1:

The patent combines separate indication fields for TB quantity, resource allocation mode, and MCS into a single joint indication field in DCI. This merging reduces the total number of bits required for signaling while maintaining the ability to independently control each parameter through coded combinations in the joint field.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The joint indication field serves multiple functions simultaneously by encoding information about TB quantity, resource allocation mode, and MCS in a single unified structure. This multi-functional approach allows one field to replace what would traditionally require multiple separate fields, reducing overall signaling overhead.

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

2Adaptability or versatility

If multiple separate indication fields are used in DCI, then each parameter can be configured independently, but the device complexity and processing overhead increase

Engineering Contradiction:
Improveparameter configuration flexibilityVSAvoidprocessing complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges multiple independent indication fields into a single joint indication field, reducing the number of fields the terminal must parse and process. This consolidation simplifies the receiving end processing while maintaining configuration flexibility through the coded structure of the joint field.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent changes the parameter representation from multiple separate fields to a single coded field that encodes multiple parameters. This parameter transformation reduces processing complexity by eliminating the need to handle multiple independent fields, while the coded structure preserves the ability to independently control each parameter.

Inventive Principle:
Principle #35Parameter changes

3Adaptability or versatility

If comprehensive parameter indications are provided in DCI, then scheduling flexibility is improved, but the communication bandwidth consumption increases

Engineering Contradiction:
Improvescheduling flexibilityVSAvoidbandwidth consumption
Core Design Contradiction:
Adaptability or versatilityVSUse of energy by moving object

Solution Approach 1:

The patent combines multiple parameter indications into a single joint indication field, reducing the total bit width required for DCI signaling. This merging maintains scheduling flexibility by encoding all necessary parameters in the unified field while consuming less communication bandwidth compared to separate indication fields.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent transforms the indication structure from multiple separate parameters to a compact coded representation in a single field. This parameter change reduces bandwidth consumption by minimizing the number of bits transmitted, while the encoding scheme preserves full scheduling flexibility for TB quantity, resource allocation, and MCS selection.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS12483349B2Information indication and determination methods and apparatuses
Publication Date: 2025.11.25 BEIJING XIAOMI MOBILE SOFTWARE CO LTD
  • US12483349B2 patent drawing
  • US12483349B2 patent drawing
  • US12483349B2 patent drawing

AI summary

Information indication and determination methods and apparatuses. The information indication method includes: issuing joint indication information based on a mapping relationship between quantity of transmission blocks (TB), and at least one of a resource allocation mode and/or a modulation coding strategy (MCS), in which the joint indication information is configured to indicate quantity of scheduled TBs and at least one of the resource allocation mode and the MCS through indicating the mapping relationship.