Slot Data Feedback Mechanism for Wireless Communication

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Solution Overview

Problem

In wireless communication networks, providing feedback for data transmission in slots is challenging due to difficulties in detecting and decoding data across multiple slots.

Innovation Solution

A processor-based apparatus that determines whether data is detected in specific slots and transmits information indicating decoding results and detection status, using bitmaps and radio resource control signaling to configure the number of slots and bits, allowing for independent decoding of code block groups and transmission of negative acknowledgement bits.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If data is transmitted across multiple slots in wireless communication networks, then the data transmission capacity is improved, but the difficulty of detecting and decoding data increases

Engineering Contradiction:
Improvedata transmission capacityVSAvoiddifficulty of detecting and decoding data
Core Design Contradiction:
Quantity of substanceVSDifficulty of detecting and measuring

Solution Approach 1:

The data transmission is segmented into multiple slots, allowing the receiving device to process and decode data from different slots separately. This segmentation enables the system to handle larger quantities of data by dividing it into manageable units, thereby improving data transmission capacity while maintaining detectability through structured organization of data across time slots

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The receiving device performs preliminary detection of data in each slot before final decoding. By预先 detecting the presence and characteristics of data in each slot, the system prepares for subsequent decoding operations, making the overall process more efficient when handling multi-slot transmissions and reducing the complexity of simultaneous processing

Inventive Principle:
Principle #10Preliminary action

2Reliability

If feedback is provided for each data transmission in slots, then the communication reliability is improved, but the device complexity increases

Engineering Contradiction:
Improvecommunication reliabilityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

Feedback information from multiple slots is merged into a unified feedback mechanism. Instead of handling separate feedback processes for each slot independently, the system combines feedback elements across slots, reducing the overall complexity of the feedback system while maintaining comprehensive communication reliability through aggregated acknowledgment information

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The feedback mechanism is designed to handle multiple functions across different slots using a universal approach. A single feedback structure serves multiple purposes by acknowledging data reception status across various slots, thereby improving reliability without proportionally increasing device complexity through specialized handling for each slot

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

3Productivity

If independent decoding of code block groups is implemented, then the decoding efficiency is improved, but the information transmission overhead increases

Engineering Contradiction:
Improvedecoding efficiencyVSAvoidinformation transmission overhead
Core Design Contradiction:
ProductivityVSLoss of information

Solution Approach 1:

Code block groups are segmented into independently decodable units, allowing the receiving device to decode them separately and efficiently. This segmentation improves decoding productivity by enabling parallel processing and selective decoding of only necessary code blocks, while the overhead is managed through compact signaling indicators that identify which segments require attention

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A feedback mechanism using bitmap indicators provides information about which code block groups were successfully decoded and which require retransmission. This feedback approach efficiently communicates decoding status without excessive overhead by using compact binary representations that convey essential information about multiple code block groups simultaneously

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS11350407B2Information indicating data in slots
Publication Date: 2022.05.31 MOTOROLA MOBILITY LLC
  • US11350407B2 patent drawing
  • US11350407B2 patent drawing
  • US11350407B2 patent drawing

AI summary

Apparatuses, methods, and systems are disclosed for transmitting information indicating data in slots. One apparatus (200) includes a processor (202) that determines (602) whether a first data in a first one or more slots of multiple slots is detected and a second data in a second one or more slots of the multiple slots is not detected. The apparatus (200) includes a transmitter (210) that: transmits (604) first information indicating a decoding result of the first data; and transmits (606) second information indicating a detection result of the second data.