BWP Switching via Antenna Port Field Equality

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Solution Overview

Problem

The existing 5G mobile communication technology's bandwidth part (BWP) switching mechanism requires a large number of rows in the time-domain resource allocation table for switching dedicated indication, limiting the transmission of other indication information and hindering resource optimization due to the need for reserved switching time.

Innovation Solution

A method and apparatus that determine the number of switching time slots required for BWP switching based on the original and target BWP resources, allowing the terminal to calculate the target time slot deviation without relying on a switching-dedicated indication row, thereby optimizing resource configuration and reducing table occupation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a switching dedicated indication row is set in the time-domain resource allocation table to specify target time slot deviation for BWP switching, then the BWP switching can be properly indicated to the terminal, but the number of available rows for carrying other transmission indication information is reduced

Engineering Contradiction:

ImproveBWP switching indication reliabilityVSAvoidtime-domain resource allocation table versatility

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent makes the time-domain resource allocation table rows serve multiple functions: they can indicate both BWP switching (when row index equals antenna port field value) and carry other transmission indication information (when row index does not equal antenna port field value). This eliminates the need for dedicated switching indication rows while maintaining reliable BWP switching indication capability.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

Instead of using specific dedicated rows for BWP switching indication, the patent inverts the approach by using the equality relationship between row index and antenna port field value as the indication mechanism. When the terminal detects that the row index matches the antenna port field value, it understands that BWP switching is indicated, thereby using the same table structure for dual purposes.

Inventive Principle:

Principle #13The other way round (Inversion)

2Reliability

If switching dedicated indication rows are always reserved in the time-domain resource allocation table, then BWP switching can be reliably supported, but the transmission of indication information for other transmissions is limited

Engineering Contradiction:

ImproveBWP switching supportVSAvoidother transmission indication information capacity

Core Design Contradiction:

ReliabilityVSLoss of information

Solution Approach 1:

The patent enables each row in the time-domain resource allocation table to serve dual purposes: indicating BWP switching when the row index equals the antenna port field value, and carrying other transmission indication information when they do not match. This eliminates the need for permanently reserved switching rows while maintaining full BWP switching capability.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent changes the interpretation parameter (the relationship between row index and antenna port field value) to determine the function of each table row. By dynamically interpreting whether the row index equals the antenna port field value, the same table structure can adaptively serve different functions, maximizing information capacity without sacrificing BWP switching support.

Inventive Principle:

Principle #35Parameter changes

3Device complexity

If the time-domain resource allocation table has limited rows, then the system maintains simplicity, but setting switching dedicated indication rows further reduces the space for other transmission information

Engineering Contradiction:

Improvetime-domain resource allocation table structureVSAvoidtransmission information capacity

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent makes the existing limited rows in the time-domain resource allocation table serve multiple functions without adding table complexity. Each row can indicate BWP switching or carry other transmission information based on the relationship between row index and antenna port field value, thereby maximizing the utilization of limited table resources.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent enables the time-domain resource allocation table to self-determine its function for each row based on the equality relationship between row index and antenna port field value. The table structure itself provides the indication mechanism without requiring external control signals, thereby maintaining simplicity while achieving multi-functionality.

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS11778622B2Method and apparatus for obtaining information, terminal, and storage medium

Publication Date: 2023.10.03 ZTE CORP

AI summary

Provided are a method and apparatus for obtaining information and sending information, terminal, base station and storage medium. The method for obtaining information includes: performing, by a terminal, a blind detection on transmission indication information according to a case where a size of an antenna port field in the transmission indication information has a maximum value; or performing, by the terminal, the blind detection on the transmission indication information according to a larger size between a size of the antenna port field corresponding to the mapping type one and a size of the antenna port field corresponding to the mapping type two.