Wireless Relay Scheduling via Base Station Control

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Solution Overview

Problem

Current wireless communication systems, particularly in LTE and NR technologies, face inefficiencies in scheduling data transmission and reception due to the lack of centralized control in networks with multiple wireless communication relays, leading to reduced scheduling efficiency and coordination issues.

Innovation Solution

Implementing a method where a base station can transmit scheduling requests and commands through a wireless communication relay to a network node, enabling centralized control and coordination of data transmission and reception, using multiple wireless links for efficient data handling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If multiple wireless communication relays are deployed to extend network coverage, then network coverage and connectivity are improved, but scheduling efficiency and coordination between relays deteriorate due to lack of centralized control

Engineering Contradiction:
Improvenetwork coverageVSAvoidscheduling efficiency
Core Design Contradiction:
Area of stationary objectVSProductivity

Solution Approach 1:

The patent introduces a relay controller as an intermediary component that is coupled to multiple wireless communication relays. This controller centralizes the scheduling decisions and coordinates data transmission between relays and network nodes, thereby resolving the coordination issues that arise in multi-relay networks. The relay controller acts as the mediator that enables efficient scheduling while maintaining the benefits of multiple relays for extended coverage.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If centralized control is implemented through a relay controller, then scheduling efficiency is improved, but device complexity increases due to additional control components

Engineering Contradiction:
Improvescheduling efficiencyVSAvoidcontrol structure
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The relay controller is designed to perform multiple functions: it controls scheduling decisions for multiple relays, coordinates data transmission, and manages communication with network nodes. By consolidating these diverse functions into a single multi-functional controller, the patent achieves centralized scheduling efficiency without proportionally increasing system complexity. The controller serves multiple relays simultaneously, making the added complexity worthwhile through improved productivity.

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

3Reliability

If relay controllers coordinate data transmission between relays and network nodes, then data transmission coordination is improved, but communication overhead increases due to multiple wireless links

Engineering Contradiction:
Improvedata transmission coordinationVSAvoidcommunication overhead
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

The relay controller performs preliminary scheduling decisions and coordinates transmission parameters before actual data transmission occurs. By pre-establishing the transmission schedule and coordination parameters, the system reduces the need for continuous communication and real-time adjustments over multiple wireless links. This preliminary coordination action minimizes the communication overhead required to maintain reliable data transmission across the relay network.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS11765723B2Scheduling via wireless communication relay
Publication Date: 2023.09.19 QUALCOMM INC
  • US11765723B2 patent drawing
  • US11765723B2 patent drawing
  • US11765723B2 patent drawing

AI summary

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication relay may receive, via a first wireless link with a base station, a scheduling request that identifies scheduling information for scheduling transmission or reception of data via a second wireless link with a network node. The wireless communication relay may transmit, via the second wireless link, a scheduling command in accordance with the scheduling information. The wireless communication relay may transmit or receive, via the second wireless link, the data in accordance with the scheduling information. Numerous other aspects are provided.