Dynamic TDD Resource Configuration for Wireless Interference
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Solution Overview
Problem
Current wireless communication systems face challenges in maintaining reliable and high-quality full-duplex communications, particularly for user equipment (UE) located at cell edges, due to interference from neighboring cells, which affects the quality and reliability of communications.
Innovation Solution
Implementing dynamic resource configuration techniques based on channel metrics, such as reference signal receive power (RSRP) and location, to select optimal Time Division Duplex (TDD) configurations and slot formats, mitigating interference and enhancing communication reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If full-duplex communications are implemented in wireless systems, then communication efficiency and data rate are improved, but interference between UEs in different cells increases
Solution Approach 1:
The patent applies dynamics by making the TDD configuration and slot format dynamically adjustable based on channel conditions. The base station selects different resource configurations from a set of configured options depending on the measured RSRP and UE location, allowing the system to adaptively switch between full-duplex and other duplex modes to minimize interference while maintaining communication efficiency.
Solution Approach 2:
The patent applies local quality by providing different resource configurations to different UEs based on their specific channel conditions, locations, and interference environments. Each UE receives a customized TDD configuration and slot format tailored to its local situation, rather than using a uniform configuration across all users.
2Reliability
If resource configurations are dynamically adjusted based on channel metrics, then communication reliability is improved, but system complexity increases
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting TDD configuration parameters and slot format parameters based on measured channel metrics such as RSRP and UE location. The base station selects from a set of pre-configured resource configurations, changing these parameters adaptively to maintain reliable communications under varying channel conditions.
3Object-generated harmful factors
If TDD configuration and slot format are selected based on UE location and RSRP, then interference mitigation is improved, but signaling overhead increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring a set of resource configurations, TDD configurations, and slot formats at the base station before actual communications begin. This allows the system to quickly select from pre-prepared options based on current channel conditions without needing to negotiate new configurations in real-time, reducing signaling overhead while maintaining effective interference mitigation.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit signaling to a first network entity indicating a location of the UE and a measured reference signal receive power (RSRP). The UE may receive an indication of a time division duplex (TDD) configuration and a slot format indicator (SFI) for communications between the UE and the first network entity based on the RSRP or location. In some cases, the first network entity may receive signaling indicating a set of resource configurations from a second network entity. The first network entity may select a resource configuration (e.g., for communications with the UE) from the set based on a measured RSRP indicated by the UE or a location of the UE. The UE and the base station (e.g., the wireless device and the first network entity) may communicate according to the indicated or selected resource configurations.