DCI Indication Field Bit Length Determination

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Solution Overview

Problem

Existing communication systems face challenges in determining the number of bits for certain indication fields in Downlink Control Information (DCI) due to varying transmission parameter configurations.

Innovation Solution

A method and system for determining transmission parameters, where a terminal device receives a first transmission parameter to determine the number of bits for a first indication field in DCI, and this parameter is constrained by a second transmission parameter, ensuring a consistent relationship across different DCI formats.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If different transmission parameter configurations are used for different DCI formats, then the transmission can be optimized for specific scenarios, but the number of bits in the same indication field varies across DCI formats causing inconsistency

Engineering Contradiction:

Improvetransmission parameter configurationVSAvoidbit length consistency

Core Design Contradiction:

Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The patent applies parameter changes by introducing a constraint relationship between transmission parameters of different DCI formats. Specifically, the transmission parameter of the first indication field in the first DCI format is constrained by the transmission parameter of the corresponding indication field in the second DCI format, ensuring that the bit length remains consistent across different DCI formats while allowing different transmission parameter configurations

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent employs asymmetry in the constraint relationship where the first transmission parameter is constrained by the second transmission parameter, but not vice versa. This asymmetric constraint allows the system to maintain bit length consistency while preserving the flexibility to use different transmission parameter configurations for different DCI formats

Inventive Principle:

Principle #4Asymmetry

2Productivity

If the number of bits in indication fields is allowed to vary across different DCI formats, then each format can be optimized independently, but it creates complexity in determining and managing bit lengths

Engineering Contradiction:

ImproveDCI format optimizationVSAvoidbit length management

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent implements feedback by using the transmission parameter of the indication field in the second DCI format as a constraint for determining the transmission parameter of the corresponding indication field in the first DCI format. This feedback mechanism ensures that bit length decisions in one DCI format inform and constrain decisions in another, reducing the complexity of independent optimization

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS12279275B2Transmission parameter determination method, terminal device, and network device

Publication Date: 2025.04.15 GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD

AI summary

The disclosure discloses a transmission parameter determination method, a terminal device, a network device, a chip, a computer-readable storage medium, a computer program product and a computer program. The method includes: the terminal device receives a first transmission parameter; the first transmission parameter is used to determine the number of bits of the first indication field in the DCI; the first transmission parameter and the second transmission parameter correspond to the first indication field in the DCI.