Radio Node D2D Resource Assessment
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Solution Overview
Problem
In Device-to-Device (D2D) communication scenarios, user equipment often faces challenges in maintaining simultaneous D2D and cellular links due to limited processor, memory, and power resources, leading to degraded session quality as they need to manage multiple interfaces and connections simultaneously, with prior art techniques being unaware of the current dynamic resource status of devices.
Innovation Solution
The radio network node receives and considers the internal resource status of user equipment for D2D communication, allowing it to determine the capability for D2D communication mode and allocate adequate resources, thereby enhancing the quality of service by deciding on the optimal communication mode based on available resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If user equipment maintains simultaneous D2D and cellular links, then communication versatility is improved, but device resource exhaustion occurs leading to degraded session quality
Solution Approach 1:
The network node performs preliminary assessment of user equipment internal resources before allowing D2D communication establishment. It evaluates processor capacity, memory availability, and power status in advance to determine whether the device can simultaneously maintain both D2D and cellular links without degrading session quality.
2Adaptability or versatility
If user equipment manages multiple interfaces and connections simultaneously, then network connectivity is improved, but device complexity increases leading to resource exhaustion
Solution Approach 1:
The user equipment provides feedback information about its internal resource status (processor usage, memory availability, power level) to the network node. The network node uses this feedback to make informed decisions about whether to allow D2D communication, thereby managing device complexity while maintaining network connectivity.
3Ease of manufacture
If prior art techniques are used for D2D communication, then implementation simplicity is maintained, but awareness of dynamic resource status is lost leading to suboptimal resource allocation
Solution Approach 1:
The invention introduces a feedback mechanism where user equipment reports its dynamic internal resource status to the network node. This resolves the information loss problem while maintaining relatively simple implementation by using standard signaling protocols for status reporting.
Data Source
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AI summary
A method in a radio network node for handling a Device-to-Device, D2D, communication is provided. The D2D communication is wireless, and the radio network node is comprised in a wireless communication system. After receiving (201) from a first user equipment, an indication of resources that are currently available in the first user equipment for D2D communication, the radio network node identifies (202) whether or not the first user equipment currently has capacity for a D2D communication based on the received indication. The resources relates to hardware resources, to combined hardware resources and radio resources, or to combined software resources, hardware resources and radio resources.