Dynamic D2D Resource Allocation via Master Device
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Solution Overview
Problem
Conventional wireless communication systems face inefficiencies in managing communication resources for device-to-device communications, leading to increased signaling overhead and poor spectral utilization due to fixed resource allocation, which is not adaptive to varying network loads or device needs.
Innovation Solution
A dynamic communication resource allocation system where a master communication device manages resource allocation among wireless communication devices in a distributed manner, using a base station to grant resources and allowing devices to self-regulate and reallocate based on quality of service and other characteristics, reducing the need for centralized control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If communication resources are allocated in a fixed manner for all communication devices requesting a D2D connection, then signaling overhead is reduced, but spectral efficiency deteriorates because the allocation cannot adapt to varying communication needs over time
Solution Approach 1:
The patent implements dynamic resource allocation where communication resources are not fixed but adapt over time based on actual communication needs. The system transitions from static allocation to dynamic allocation, allowing resources to be reassigned when communication conditions change, thus improving spectral efficiency without requiring excessive signaling overhead for constant reconfiguration.
Solution Approach 2:
The patent enables communication devices to autonomously determine and allocate resources among themselves without requiring continuous centralized control from the base station. Devices can self-manage resource allocation based on their communication patterns, reducing the signaling overhead that would otherwise be required for centralized resource management while maintaining efficient spectral utilization.
2Productivity
If communication resources are dynamically reallocated by a base station to accommodate network load variations, then spectral efficiency is improved, but signaling overhead increases due to centralized control requirements
Solution Approach 1:
The patent empowers communication devices to autonomously manage resource allocation among themselves rather than relying on continuous base station intervention. This self-service mechanism allows the system to adapt to network load variations and maintain high spectral efficiency while minimizing signaling overhead, as devices independently make allocation decisions based on local communication conditions.
Solution Approach 2:
The patent divides the resource allocation function into segments: the base station provides overall coordination and grants resources, while individual communication devices handle the detailed allocation and management among themselves. This segmentation reduces the signaling burden on the base station while maintaining dynamic adaptability, as only high-level resource grants need to be communicated from the base station rather than detailed allocation instructions.
3Ease of operation
If a centralized base station manages resource allocation for D2D communications, then resource distribution control is improved, but device complexity and signaling overhead increase
Solution Approach 1:
The patent segments the resource management functionality between the base station and communication devices. The base station retains overall control by granting resources and coordinating allocations, while communication devices independently manage the detailed resource distribution among themselves. This segmentation maintains centralized control benefits while reducing signaling overhead and device complexity.
Solution Approach 2:
The patent introduces a distributed intermediary mechanism where communication devices act as intermediaries for resource allocation among themselves, rather than requiring all communication to pass through the base station. This allows the base station to maintain overall control while reducing its signaling burden, as devices autonomously negotiate and allocate resources based on base station grants.
Data Source
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AI summary
An apparatus, system and method to dynamically manage an allocation of communication resources for direct device-to-device communications between a plurality of wireless communication devices in a wireless communication system. In one embodiment, the apparatus (410) includes a communication resource allocator (420) configured to: (1) select a master communication device of a plurality of wireless communication devices that form a device-to-device group, (2) provide an allocation of communication resources for device-to-device group that facilitate direct device-to-device communications therebetween. The apparatus (410) also includes a message generator (430) configured to assemble messages that include the allocation of the communication resources.