D2D Grant Resource Allocation via Implicit Derivation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems lack a standardized method to effectively utilize 6 bits in D2D grant information to indicate time-frequency resource positions for D2D PSCCH transmission, which is essential for efficient D2D communication within base station coverage.
Innovation Solution
A method where a base station generates D2D grant information that includes instruction information for the UE to determine the time-frequency resource configuration for D2D PSCCH transmission, with the frequency and time domain positions of the second physical resource block pair being implicitly derived from the first, using RRC-configured relationships.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If 6 bits are used to indicate time-frequency resource positions for D2D PSCCH, then resource allocation capability is improved, but the complexity of effectively utilizing these bits to inform UE of resource positions increases
Solution Approach 1:
The patent segments the 6-bit resource indication into two parts: first indication information for the first physical resource block pair and second indication information for the second physical resource block pair. This segmentation allows each part to independently indicate resources for different PSCCH transmissions, effectively utilizing the 6 bits while maintaining clear resource allocation rules for the UE.
Solution Approach 2:
The patent introduces dynamic resource allocation where the second physical resource block pair's time-frequency position is determined dynamically based on the first physical resource block pair's position plus an offset. This dynamic approach allows flexible resource allocation while keeping the indication mechanism straightforward through the segmented bit structure.
2Productivity
If standardized solution is implemented for 6-bit resource indication, then communication efficiency is improved, but implementation complexity during standardization increases
Solution Approach 1:
The patent establishes preliminary rules for how the 6 bits are segmented and how the second resource block pair position is derived from the first. By pre-defining these relationships, the standardization process becomes more manageable, and once standardized, the communication efficiency is significantly improved as UEs can efficiently decode resource allocations without complex real-time calculations.
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The present disclosure provides a method for a base station informing a user equipment (UE) of a resource configuration for D2D PSCCH, and corresponding base station and user equipment. The method comprising: generating D2D grant information, the D2D grant information including D2D PSCCH resource configuration instruction information which is used to indicate the time-frequency position of a first physical resource block pair for transmitting PSCCH; and transmitting the D2D grant information to the UE, wherein the time-frequency position of a second physical resource block pair for transmitting PSCCH can be derived from the time-frequency position of the first physical resource block pair.