Asynchronous Multi-Point Transmission for 5G Network Coordination

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Solution Overview

Problem

Advanced wireless communication networks, such as 5G, face challenges in achieving ultra low latency and high bandwidth due to stringent coordination requirements between transmission points, making it difficult to implement centralized radio access network architectures.

Innovation Solution

The implementation of asynchronous multi-point transmission schemes, where user equipment (UE) coordinates data transmission from multiple transmission points with independent schedulers, eliminating the need for ultra low latency transport and centralized scheduling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If coordinated multi-point transmission schemes are implemented with centralized scheduling, then network throughput and capacity are improved, but transport latency requirements and system complexity increase significantly

Engineering Contradiction:
Improvenetwork throughputVSAvoidtransport latency
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The patent segments the centralized scheduling function into distributed schedulers at each transmission point. Each TP independently schedules its own transmissions without requiring centralized coordination, thereby eliminating the need for low-latency transport between TPs and the central controller while maintaining multi-point transmission capabilities

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces a coordination message mechanism as an intermediary that allows TPs to exchange minimal scheduling information asynchronously. This mediator enables coordinated transmission behavior without requiring tight timing synchronization or centralized control, resolving the contradiction between coordination benefits and latency requirements

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If coordinated multi-point transmission schemes with centralized scheduling are implemented, then transmission coordination is improved, but device complexity and infrastructure requirements increase

Engineering Contradiction:
Improvetransmission coordinationVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent divides the centralized scheduling complexity into independent distributed schedulers at each transmission point. Each scheduler operates autonomously with reduced functionality, eliminating the need for complex centralized scheduling infrastructure while maintaining coordination through simplified asynchronous message exchange

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent extracts the timing synchronization and centralized coordination requirements from the system. By removing these complex infrastructure requirements and replacing them with asynchronous independent scheduling, the system achieves transmission coordination with significantly reduced device and infrastructure complexity

Inventive Principle:
Principle #2Taking out (Extraction)

3Manufacturing precision

If tight scheduling coordination between transmission points is implemented, then transmission precision is improved, but implementation difficulty and infrastructure requirements increase

Engineering Contradiction:
Improvescheduling precisionVSAvoidimplementation difficulty
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The patent transitions from static tight scheduling coordination to dynamic asynchronous scheduling. Each transmission point adapts its scheduling independently based on local conditions and exchanges coordination messages as needed, achieving effective coordination without the rigid infrastructure requirements of tight synchronization

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS11477770B2Asynchronous multi-point transmission schemes
Publication Date: 2022.10.18 AT&T INTELLECTUAL PROPERTY I L P
  • US11477770B2 patent drawing
  • US11477770B2 patent drawing
  • US11477770B2 patent drawing

AI summary

Asynchronous multi-point transmission techniques for MIMO networks are provided. An example method comprises receiving, by a device comprising a processor, a first data signal from a first TP device of a wireless communication network, wherein the first data signal comprises first code-word information generated based on a data. The method further comprises receiving, by the device, a second data signal from a second TP device of the wireless communication network, wherein the second data signal comprises second code-word generated based on the data, wherein the first code-word information and the second-code word information are different, and wherein the first TP device and the second TP device are geographically separated by a threshold distance. The device can further process the first data signal and the second data signal to generate a unified data signal representative of the data.