Full Duplex Transmission Configurations via Antenna Panel Segmentation
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing full duplex transmissions due to self-interference issues and limitations in simultaneous uplink and downlink operations, which affect spectral efficiency and latency.
Innovation Solution
The method involves generating and transmitting transmission configuration information that includes multiple indicators of respective reference signals, allowing for simultaneous uplink and downlink communications by using DCI to configure antenna panels for full duplex operations, enabling the selection of optimal beam pairs to minimize self-interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If full duplex transmissions are implemented to enable simultaneous uplink and downlink communications, then spectral efficiency and communication speed are improved, but self-interference between transmit and receive signals increases
Solution Approach 1:
The patent segments the communication resources by configuring separate antenna panels for transmission and reception functions. The base station divides the antenna resources into first antenna panels for downlink transmission and second antenna panels for uplink reception, physically separating the transmit and receive paths to reduce self-interference while maintaining full duplex operation
Solution Approach 2:
The patent introduces transmission configuration information as an intermediary mechanism that coordinates between base station and UE. This configuration message acts as a mediator that establishes the full duplex transmission parameters, antenna panel mappings, and resource allocations, enabling simultaneous uplink and downlink while managing interference through structured resource separation
2Reliability
If transmission configuration information with multiple reference signal indicators is generated and transmitted via DCI, then beam pair selection for full duplex operations is optimized, but control signaling overhead increases
Solution Approach 1:
The transmission configuration information serves multiple functions simultaneously: it configures antenna panel mappings, indicates reference signal associations, defines beam pair relationships, and establishes resource allocations. By consolidating these multiple configuration tasks into a single DCI message structure, the patent reduces the number of separate signaling exchanges needed while maintaining comprehensive control over full duplex parameters
3Loss of time
If antenna panels are configured for simultaneous uplink and downlink operations, then latency is reduced, but interference management complexity increases
Solution Approach 1:
The patent implements dynamic interference management through configurable antenna panel associations that can be adjusted via transmission configuration information. The system allows flexible mapping between antenna panels and reference signals, enabling adaptive optimization of beam pairs based on channel conditions and interference levels, thereby managing complexity through programmable flexibility rather than fixed rigid structures
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, downlink control information (DCI) associated with transmission configuration information, where the transmission configuration information includes a plurality of indicators of respective reference signals. The UE may communicate, with the base station, based at least in part on the transmission configuration information. The DCI may include a field associated with a transmission configuration indicator (TCI) state that includes the plurality of indicators. As an alternative, the DCI may include at least a first field associated with a first TCI state that includes a first indicator of the plurality of indicators and a second field associated with a second TCI state that includes a second indicator of the plurality of indicators. Numerous other aspects are described.