Dynamic Wireless Resource Allocation for LTE eMBMS

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Solution Overview

Problem

Current communication systems, such as those supporting LTE Evolved Multimedia Broadcast Multicast Service (eMBMS), face limited flexibility in allocating wireless resources to physical channels, leading to inefficient use of wireless resources, especially in scenarios with varying user demands.

Innovation Solution

A communication device and method that determine the accommodation state of wireless resources between unicast and multicast physical channels and dynamically adjust the allocation of wireless resources between them, allowing for flexible re-allocation of resources based on demand, thereby improving resource utilization.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If wireless resources are allocated to physical channels for unicast and multicast communication, then communication services can be provided to users, but the flexibility in allocating wireless resources to physical channels is limited

Engineering Contradiction:

Improveflexibility in allocating wireless resourceVSAvoidcomplexity of resource allocation

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies dynamics by enabling dynamic reconfiguration of physical channels between unicast and multicast modes. The base station can change the allocation state of physical channels based on real-time accommodation states of sessions, allowing the system to adapt to varying user demands and traffic conditions without requiring complex manual intervention.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the allocation parameter of wireless resources by determining accommodation states of sessions and using these states to decide whether to allocate resources to unicast or multicast physical channels. This parameter change approach allows flexible resource distribution based on current network conditions and user requirements.

Inventive Principle:

Principle #35Parameter changes

2Productivity

If wireless resources are allocated to physical channels for unicast and multicast communication, then communication services can be provided, but wireless resources cannot be efficiently utilized in scenarios with varying user demands

Engineering Contradiction:

Improveefficiency of wireless resourceVSAvoidadaptability to varying user demand

Core Design Contradiction:

ProductivityVSAdaptability or versatility

Solution Approach 1:

The patent implements feedback by determining the accommodation state of sessions in unicast and multicast physical channels based on actual user demands. The base station uses this feedback information to dynamically adjust resource allocation, ensuring that wireless resources are efficiently utilized according to real-time network conditions and user requirements.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system dynamically adjusts physical channel allocation between unicast and multicast modes based on real-time accommodation states. This dynamic reconfiguration allows the system to respond to varying user demands and optimize resource utilization efficiency without requiring rigid pre-configured allocation schemes.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS11974180B2Wireless resource allocation to support LTE eMBMS

Publication Date: 2024.04.30 NEC CORP

AI summary

A communication device 1 determines, between a first physical channel and a second physical channel of the communication device 1, an accommodation state of a session in a wireless resource of the first physical channel. The communication device 1 issues an instruction of changing a part of the wireless resource of the first physical channel to a wireless resource of the second physical channel, based on the above-mentioned accommodation state.