D2D Communication Adaptation via Terminal Capability Discovery
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional D2D communication methods lack flexibility as they do not account for the varying capabilities and states of different terminals, leading to inefficient communication in scenarios where terminals with limited resources or specific conditions are involved.
Innovation Solution
A D2D-based communication method where terminals exchange discovery signals containing indication information about their capabilities and states, allowing other terminals to determine the appropriate communication mode based on this information, enabling efficient communication even with relay terminals of varying bandwidth, power, and service capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a unified D2D discovery and communication manner is used for all terminals, then the system is simple to implement, but the communication flexibility is reduced and cannot adapt to terminals with varying capabilities
Solution Approach 1:
The patent segments terminals into different types (conventional terminals and special-type terminals) based on their capabilities. Each terminal type has differentiated discovery and communication procedures, allowing the system to adapt to varying terminal capabilities while maintaining manageable complexity through structured classification
Solution Approach 2:
The patent introduces dynamic adaptation mechanisms where terminals exchange capability information and adjust their discovery and communication behaviors based on the other terminal's type. This dynamic adjustment enables flexible communication without requiring a completely complex system redesign
2Reliability
If relay terminals are used for terminals without network coverage, then connectivity is improved, but the system cannot account for relay terminal states such as electricity amount and load
Solution Approach 1:
The patent implements feedback mechanisms where relay terminals report their state information (electricity amount, load) to discovering terminals. This feedback enables the discovering terminal to make informed decisions about whether to initiate communication, ensuring reliable connectivity while adapting to the relay terminal's current state
Solution Approach 2:
The patent uses preliminary discovery signals that contain capability and state information before actual communication occurs. This preliminary action allows terminals to assess compatibility and availability in advance, ensuring reliable connectivity while adapting to varying terminal states
3Productivity
If D2D communication is performed without considering terminal capabilities, then the communication process is simple, but resource utilization is inefficient
Solution Approach 1:
The patent applies local quality by tailoring discovery and communication parameters to the specific capabilities of each terminal type. For example, special-type terminals with limited bandwidth or power use adjusted transmission parameters, optimizing resource utilization for each terminal's local conditions without requiring complex system-wide changes
Data Source
AI summary
Provided in the embodiment of the present invention are a D2D-based communication method and a terminal. The method comprises: a first terminal receives a discovery signal of a second terminal, the discovery signal comprising indication information for indicating the capability and/or the status of the second terminal; and the first terminal performs D2D communication with the second terminal on the basis of the instruction information. The embodiment of the present invention implements the D2D communication on the basis of the capability and/or status of the terminal, improving the flexibility of the D2D communication mode.