Frequency-Domain Resource Allocation for Concurrent SSB and Data
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In Device to Device (D2D) communication systems, the transmission of sidelink synchronization signals (SSB) occupies a slot that cannot be used for other transmissions, leading to significant performance loss due to restricted resource utilization.
Innovation Solution
A wireless communication method and terminal device that obtain and utilize frequency domain resource information to enable simultaneous transmission and reception of SSB and other channels or signals by using non-overlapping frequency domain resources within a slot, optimizing resource allocation on shared and licensed spectra.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a slot is used for transmission and reception of sidelink synchronization signal (SSB), then synchronization function is achieved, but other transmissions cannot be performed leading to resource utilization loss
Solution Approach 1:
The slot is segmented into multiple frequency domain resources, where some resources are allocated for SSB transmission and others for data channel transmission. This allows the slot to serve multiple functions simultaneously, resolving the contradiction between ensuring synchronization reliability and improving resource utilization efficiency.
Solution Approach 2:
The patent merges the synchronization function (SSB transmission) and data transmission function within the same slot by allocating different frequency domain resources for each purpose. This combining approach enables both functions to coexist, improving overall resource utilization while maintaining synchronization reliability.
2Reliability
If frequency domain resources are allocated for SSB transmission, then synchronization signal transmission is enabled, but concurrent data transmission in the same slot is blocked
Solution Approach 1:
Frequency domain resources within the slot are segmented into distinct portions: some resource blocks are dedicated to SSB transmission while others are allocated for data channels. This segmentation enables concurrent transmissions without interference, eliminating resource waste while ensuring reliable SSB transmission.
Solution Approach 2:
The patent transitions from time-domain multiplexing (where SSB and data would occupy different time slots) to frequency-domain multiplexing (where they occupy different frequency resources within the same slot). This dimensional change allows simultaneous transmission of both SSB and data, improving resource efficiency without compromising SSB transmission reliability.
Data Source
AI summary
A wireless communication method and a terminal device are described. The method can comprise: acquiring frequency domain resource information corresponding to a first slot on a first frequency band, wherein the first frequency band comprises a first carrier or a first bandwidth part, the first slot corresponds to at least two frequency domain resources, the at least two frequency domain resources comprise a first frequency domain resource and a second frequency domain resource, the first frequency domain resource is used for transmitting a first synchronization signal block (SSB), and the second frequency domain resource is used for transmitting a first channel or a first signal. A first slot on a first frequency band corresponds to at least two frequency domain resources. The first frequency domain resource is used for transmitting a first SSB, and a second frequency domain resource is used for transmitting a first channel or a first signal.