Coordinated Transmission Scheduling Weight Alignment

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Solution Overview

Problem

In wireless communication systems, Coordinated Multipoint (CoMP) transmission can conflict with scheduling policies when neighboring base stations have different scheduling weights for data transmission, leading to interference and reduced quality of service at cell edges.

Innovation Solution

A method where a serving base station determines the scheduling weight of a neighboring base station and applies it to the received data to send a proper subset to the neighboring base station for coordinated transmission, ensuring compliance with the neighboring base station's policy and reducing interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If CoMP transmission is implemented to improve signal strength at cell edges, then quality of service is improved, but interference increases when neighboring base stations have different scheduling weights

Engineering Contradiction:

Improvequality of service at cell edgesVSAvoidinterference

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent applies different scheduling weights to different base stations based on their local policies. Each base station determines whether to transmit data based on its own scheduling policy, allowing local optimization that prevents interference while maintaining QoS at cell edges through coordinated transmission.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The system dynamically adjusts transmission decisions based on real-time scheduling weight determinations. The serving base station determines the scheduling weight of the neighboring base station and dynamically decides whether to transmit data to the neighboring base station, creating an adaptive coordination mechanism that prevents interference.

Inventive Principle:

Principle #15Dynamics

2Strength

If the serving base station transmits data to the neighboring base station for CoMP transmission, then signal strength is improved, but the neighboring base station's scheduling policy is violated

Engineering Contradiction:

Improvesignal strengthVSAvoidscheduling policy compliance

Core Design Contradiction:

StrengthVSReliability

Solution Approach 1:

The serving base station determines the scheduling weight of the neighboring base station and uses this information as feedback to decide whether to transmit data. This feedback mechanism ensures that transmission decisions are made with knowledge of the neighboring base station's policy, preventing policy violations while maintaining signal strength through coordinated transmission.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The serving base station determines the scheduling weight of the neighboring base station before making transmission decisions. This preliminary determination of scheduling weights allows the system to pre-assess whether CoMP transmission will comply with the neighboring base station's policy, preventing policy violations before they occur.

Inventive Principle:

Principle #10Preliminary action

3Productivity

If the neighboring base station transmits data with higher scheduling weight, then data transmission rate is improved, but interference with other cells increases

Engineering Contradiction:

Improvedata transmission rateVSAvoidinterference with other cells

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

Each base station applies its own local scheduling policy to determine transmission behavior. The neighboring base station uses its scheduling weight to decide whether to transmit data, allowing local optimization of transmission rates while preventing excessive interference through policy-based control.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS10158463B1Method and system for coordinated transmission with use of neighboring base station scheduling policy

Publication Date: 2018.12.18 SPRINT SPECTRUM LP

AI summary

A method and system to manage coordinated transmission of data in a wireless communication system. When a serving base station receives data of a particular class for transmission to a user equipment device (UE), the serving base station transmits the received data to the UE and sends a proper subset of the received data to a neighboring base station for the neighboring base station to also transmit to the UE optimally concurrently with the serving base station's transmission of the proper subset. To help comply with a policy in place at the neighboring base station, the serving base station decides how much of the received data to send to the neighboring base station as the proper subset by (i) determining what scheduling weight the neighboring base station is set to apply for data of the particular class and (ii) applying that determined scheduling weight to the received data.