Active Spatial Relations Configuration in Wireless Systems
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently configuring active spatial relations for detecting downlink reference signals and generating uplink beams, particularly in multi-user and multi-antenna environments, which affects communication quality and efficiency.
Innovation Solution
The method involves indicating the capability of active spatial relations supported by user equipment (UE) or access points, generating configurations for transmit filters of reference signals, and using these configurations to detect and transmit reference signals, thereby optimizing the use of active spatial relations based on device capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the system supports a large number of active spatial relations for detecting downlink reference signals and generating uplink beams, then the communication quality and efficiency are improved, but the device complexity increases
Solution Approach 1:
The patent segments the spatial relation configuration into two distinct phases: a first phase where the access point configures multiple spatial relations including reference signals and beam information, and a second phase where the UE indicates its capability and the access point activates only the necessary spatial relations. This segmentation allows the system to support multiple spatial relations for improved communication efficiency while reducing the complexity burden on the UE by activating only needed relations.
Solution Approach 2:
The patent applies preliminary action by having the access point configure and prepare multiple spatial relations in advance during the first phase, including downlink reference signals and uplink beam information. The UE then indicates its capability in the second phase, and the access point activates only the necessary spatial relations. This preliminary configuration allows the system to maintain high communication efficiency while reducing real-time processing complexity.
2Adaptability or versatility
If the access point configures multiple spatial relations for the UE, then the adaptability to different communication scenarios is improved, but the ease of operation deteriorates
Solution Approach 1:
The patent implements self-service by having the UE autonomously indicate its capability regarding the number of active spatial relations it can support. The access point then uses this capability indication to automatically determine which spatial relations to activate, eliminating the need for manual configuration or complex UE operations. This maintains adaptability to different communication scenarios while significantly simplifying UE operation.
Solution Approach 2:
The patent changes the parameter of spatial relation configuration from a static, access-point-controlled setup to a dynamic, capability-based activation mechanism. The access point adjusts the number of active spatial relations based on the UE's indicated capability, allowing the system to adapt to different communication scenarios while maintaining ease of operation through automated parameter adjustment.
Data Source
AI summary
Aspects described herein relate to configuring active spatial relations in wireless communications. A capability indicating a number of active spatial relations supported for detecting downlink reference signals or generating uplink beams can be indicated to an access point. A configuration of spatial relations indicating a transmit filter of reference signals for use in transmitting uplink communications can be received from the access point and based on the capability. One or more of the reference signals received from the access point can be detected based on the configuration.