Full-Duplex Base Station Signaling With Segmented Resource Pools
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing interactions between base stations in full duplex scenarios, leading to interference and suboptimal performance in diverse application scenarios like eMBB and URLLC, without increasing hardware complexity.
Innovation Solution
A method involving flexible time-frequency resource pools and IDs for signaling to manage interactions between base stations, allowing dynamic and coordinated scheduling, reducing interference, and optimizing system performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If base stations interact through an air interface in full duplex scenario, then timeliness and efficiency of interaction are improved, but intra-cell and inter-cell interferences increase
Solution Approach 1:
The time-frequency resource pool is segmented into first time-frequency resource set and second time-frequency resource set. The first set is used for downlink transmission while the second set is used for uplink transmission, allowing base stations to interact through air interface without causing mutual interference between simultaneous transmissions.
Solution Approach 2:
Different quality characteristics are assigned to different time-frequency resource sets. The first resource set is optimized for downlink with specific reference signal configurations, while the second resource set is optimized for uplink with different reference signal configurations, reducing interference through localized optimization.
2Adaptability or versatility
If flexible transmission direction configuration is implemented, then adaptability to different application scenarios is improved, but device complexity increases
Solution Approach 1:
The transmission direction configuration is made dynamic through the introduction of first signaling and second signaling that can flexibly indicate different time-frequency resource sets for downlink and uplink. This allows the system to adapt to different application scenarios (eMBB, URLLC, mMTC) without requiring complex static configuration for each scenario.
Solution Approach 2:
The same time-frequency resource pool structure and signaling mechanism are designed to serve multiple application scenarios universally. The first and second time-frequency resource sets can be configured and used across different scenarios (eMBB, URLLC, mMTC) without requiring scenario-specific hardware or complex configuration, reducing overall device complexity.
Data Source
AI summary
Disclosure provides a method and device in nodes used for wireless communications. A node first transmits a first signaling, the first signaling being used to determine a first time-frequency resource pool; and then monitors a second signaling in the first time-frequency resource pool; the first time-frequency resource pool comprises a first time-frequency resource set and a second time-frequency resource set, and time-frequency resources occupied by the second signaling belong to the first time-frequency resource set or the second time-frequency resource set; the first signaling is used to trigger the second signaling; a first ID is used to generate the second signaling, a first information block is used to generate the second signaling, the first information block is used to determine at least one of a candidate time-frequency resource set or a candidate reference signal resource set. The application improves the interaction mode under full duplex, thereby optimizing the system performance.