PUCCH/PUSCH Resource Reuse Across BWP Subbands for Full Duplex Uplink
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently determining and utilizing resources for uplink transmission in full duplex systems, particularly in scenarios where simultaneous transmission and reception occur, leading to self-interference and increased signaling overhead.
Innovation Solution
The proposed solution involves a user equipment (UE) and base station (BS) that determine available resources for subbands within a bandwidth part (BWP) by reusing configured PUCCH and PUSCH resources, considering frequency hopping configurations, to optimize PUCCH and PUSCH transmissions in full duplex systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If full duplex transmission is implemented to enable simultaneous uplink and downlink communications, then spectral efficiency and system capacity are improved, but self-interference occurs between transmission and reception
Solution Approach 1:
The system segments the frequency spectrum into subbands, with certain subbands designated as uplink subbands for uplink transmission only and other subbands for downlink transmission only. This frequency domain segmentation prevents self-interference by ensuring that uplink and downlink transmissions do not occur simultaneously in the same frequency resources, while still enabling full duplex operation across different frequency portions.
2Adaptability or versatility
If separate resource configurations are provided for uplink subbands, then resource allocation flexibility is improved, but signaling overhead increases
Solution Approach 1:
The patent configures PUCCH resources at the bandwidth part level rather than at the individual subband level. A single PUCCH resource configuration serves multiple uplink subbands within a bandwidth part, enabling the same resource set to be reused across different subbands. This universal configuration approach maintains resource allocation flexibility for different subbands while significantly reducing signaling overhead by avoiding redundant configuration messages for each subband.
Data Source
AI summary
Embodiments of the present disclosure relate to methods and apparatuses for uplink (UL) transmission in a full duplex (FD) system. According to some embodiments of the disclosure, a user equipment (UE) may include: a transceiver configured to receive a configuration indicating one or more set of resources for a bandwidth part (BWP) of the UE; and a processor coupled to the transceiver and configured to determine at least one set of available resources for a subband based on the one or more set of resources for the BWP.