Virtual Resource Block Mapping in Full Duplex Slots
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In wireless communications, existing systems face inefficiencies in decoding transmissions due to inconsistent interleaving configurations in full duplex slots, leading to self-interference and decreased network performance.
Innovation Solution
User equipment (UE) selects an appropriate interleaving configuration based on scheduling information, bandwidth part position, or indications from the base station, allowing for flexible configuration of full duplex or half duplex interleaving to mitigate self-interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a fixed interleaving configuration is used in full duplex slots, then device complexity is reduced, but self-interference increases and decoding reliability deteriorates
Solution Approach 1:
The patent implements dynamic selection of interleaving configuration based on the duplex mode of the slot. The UE determines whether to apply full duplex interleaving or half duplex interleaving configuration based on whether the slot is configured for full duplex communications, allowing the system to adapt to different operational conditions rather than using a fixed configuration
Solution Approach 2:
The patent changes the interleaving configuration parameter based on the slot type. When a slot is configured for full duplex communications, the UE applies a specific interleaving configuration (e.g., full duplex interleaver) that differs from the configuration used in half duplex slots, thereby optimizing performance for the specific operational mode
2Adaptability or versatility
If inconsistent interleaving configurations are used in full duplex slots, then adaptability to different communication modes is improved, but self-interference increases and network performance deteriorates
Solution Approach 1:
The patent applies different interleving configuration parameters based on the duplex mode. For full duplex slots, a specific interleaving configuration is used that accounts for simultaneous uplink and downlink transmissions, thereby reducing self-interference compared to using inconsistent or inappropriate configurations
Solution Approach 2:
The patent converts the potential harm of self-interference in full duplex communications into a benefit by applying a specialized interleaving configuration that is specifically designed to mitigate self-interference effects, thereby improving overall system performance despite the challenging operational conditions
3Loss of energy
If default interleaving configuration is assumed without explicit indication, then signaling overhead is reduced, but decoding accuracy deteriorates due to configuration mismatches
Solution Approach 1:
The patent enables the UE to self-determine the appropriate interleaving configuration by examining the slot configuration for full duplex communications. The UE autonomously selects the correct interleaving mode (full duplex or half duplex) based on the scheduling information and slot type, eliminating the need for explicit base station indications while ensuring accurate configuration selection
Data Source
AI summary
Methods, systems, and devices for wireless communications are described that support virtual resource block (RB) to physical RB mapping in duplex slots. The described techniques enable a user equipment (UE) to select an interleaving configuration such as a full duplex or half duplex interleaving configuration for a slot that may be configured for full duplex communications. In some cases, the UE may use a default interleaving configuration for a given slot or may determine the interleaving configuration based on a bandwidth part (BWP) position or resource bandwidth within the slot, such as a location within the frequency domain of a downlink BWP relative to an uplink BWP.