Full Duplex Bandwidth Part Configuration for 5G NR Interference Management
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Solution Overview
Problem
Current 5G NR technologies face challenges in implementing full duplex data transmission, which could double link throughput and reduce latency, due to limitations in bandwidth part configuration and switching mechanisms.
Innovation Solution
The method involves determining and configuring multiple bandwidth parts (BWPs) for both uplink and downlink slots, allowing for simultaneous data transmission in the same slot, with dynamic activation and deactivation based on RRC signaling and DCI, and utilizing additional BWPs paired with legacy BWPs to manage resource allocation and interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If full duplex mode is implemented with traditional bandwidth part configuration, then bidirectional transmission capability is achieved, but interference management and resource allocation complexity increases
Solution Approach 1:
The patent divides the bandwidth into separate uplink bandwidth parts and downlink bandwidth parts, with additional BWPs specifically configured for full duplex operation. This segmentation allows independent management of uplink and downlink resources, reducing the complexity of simultaneous resource allocation while enabling bidirectional transmission.
Solution Approach 2:
The patent introduces additional bandwidth parts as intermediary resources that can be dynamically activated for full duplex operation. These additional BWPs act as mediators between traditional uplink/downlink configurations, providing dedicated resources for simultaneous transmission and reception without interfering with legacy half-duplex operations.
2Productivity
If multiple bandwidth parts are configured for full duplex operation, then throughput is doubled, but bandwidth part switching complexity and overhead increases
Solution Approach 1:
The patent combines the configuration of additional uplink and downlink bandwidth parts into a unified full duplex configuration framework. By merging the management of these additional BWPs under a single configuration mechanism, the patent reduces switching complexity while maintaining the throughput benefits of simultaneous bidirectional transmission.
Solution Approach 2:
The patent implements dynamic activation and deactivation of additional bandwidth parts based on traffic conditions and full duplex operation requirements. This dynamic approach allows the system to switch between half-duplex and full duplex modes efficiently, reducing unnecessary switching overhead while maximizing throughput when full duplex conditions are met.
3Adaptability or versatility
If additional bandwidth parts are introduced for full duplex, then resource allocation flexibility improves, but configuration overhead and signaling complexity increases
Solution Approach 1:
The additional bandwidth parts are designed with multi-functionality, serving both as dedicated full duplex resources and as supplementary resources that can be utilized in half-duplex modes. This universal design reduces configuration overhead by eliminating the need for separate configuration mechanisms for different duplex modes, while maintaining resource allocation flexibility.
Data Source
AI summary
The present application relates to a method and an apparatus for data transmission in full duplex mode. One embodiment of the present disclosure provides a of a user equipment (UE) for transceiving with a base station with full duplex capability, comprising: determining a first plurality of bandwidth parts (BWPs) for a first set of slots, wherein the first set of slots are preconfigured for a first link; and receiving, from the base station, a configuration indicating utilizing a first BWP for the first set of slots for a second link, wherein the first link is one of uplink and downlink and the second link is the other one of uplink and downlink.