UE CLI Measurement Coordination via Capability Signaling
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Solution Overview
Problem
Existing wireless communication systems face challenges in coordinating cross-link interference (CLI) measurements between user equipment (UE) and the network, particularly in scenarios where UEs lack the capability to simultaneously receive signals for CLI measurements and those from serving or neighbor cells.
Innovation Solution
A coordination mechanism is introduced that allows user equipment (UE) to indicate its capability for simultaneous cross-link interference (CLI) measurements and reception of signals from serving or neighbor cells. This mechanism involves generating a message to transmit to an access node, detailing the UE's capability, and adjusting measurement processes accordingly during a CLI measurement window.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the UE performs CLI measurements during a CLI measurement window, then the measurement precision is improved, but the UE cannot simultaneously receive signals from serving or neighbor cells, causing loss of information
Solution Approach 1:
The network node determines the UE's capability to simultaneously receive CLI measurement signals and serving/neighbor cell signals in advance. Based on this predetermined capability information, the network configures appropriate measurement windows and signal transmission schedules before actual measurements occur, preventing conflicts between simultaneous reception requirements
Solution Approach 2:
The system dynamically adjusts the CLI measurement window configuration and signal transmission timing based on the UE's reported capability. When the UE supports simultaneous reception, measurements can proceed without restricting other signal receptions. When the UE does not support simultaneous reception, the system adapts by scheduling measurements in time slots that do not conflict with serving/neighbor cell signal receptions
2Productivity
If the UE supports simultaneous reception of CLI measurement signals and serving/neighbor cell signals, then the productivity is improved, but the device complexity increases
Solution Approach 1:
The UE autonomously determines and reports its own capability regarding simultaneous reception of CLI measurement signals and serving/neighbor cell signals. This self-reported capability information enables the network to appropriately configure measurement parameters without requiring complex network-side determination mechanisms, distributing the intelligence to where the actual capability resides
Solution Approach 2:
The system changes the operational parameters of the UE based on its capability state. When the UE reports support for simultaneous reception, the network configures measurement windows and signal transmissions to utilize this capability, thereby improving measurement efficiency and signal reception productivity without requiring hardware changes
Data Source
AI summary
Disclosed are methods, systems, apparatus, and computer programs for a coordination mechanism between a network and a user equipment (UE) that is configured to perform cross-link interference (CLI) measurements. In one aspect, a method includes generating a message that indicates a capability of a user equipment (UE) whether to support simultaneous reception of at least one signal associated with cross-link interference (CLI) measurement and at least one signal associated with a serving cell or a neighbor cell of the UE. The method further includes transmitting the message to an access node (AN).