Multi-Entity Beam Indication Through TCI Field Maps
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing beam indications for multiple entities, particularly in 5G/NR systems, which require improved mechanisms to support increased capacity and flexibility in beamforming for various services and applications.
Innovation Solution
The implementation of a configuration mechanism for transmission configuration indicator (TCI) states, allowing for the activation and indication of multiple TCI state code points for multiple entities, using a field map and list structure to manage beam indications effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a configuration mechanism for multiple TCI state code points is implemented, then the capability to manage beam indications for multiple entities is improved, but the device complexity increases due to the field map and list structure
Solution Approach 1:
The beam indication mechanism is segmented into multiple TCI state code points, each independently configurable and activatable. The field map structure divides the indication space into N fields, where each field corresponds to a specific entity and can be independently configured. This segmentation allows flexible management of beam indications for multiple entities while maintaining organized system structure.
Solution Approach 2:
The patent introduces a new dimension of organization by creating a field map with N fields that maps to N entities. This dimensional structure allows the system to manage multiple TCI state code points across multiple entities simultaneously, transforming a potentially complex multi-dimensional problem into a structured two-dimensional field-map representation that is easier to manage and configure.
2Adaptability or versatility
If multiple TCI state code points are indicated for multiple entities, then the flexibility of beamforming is improved, but the message size and information management complexity increase
Solution Approach 1:
The field map structure serves multiple functions simultaneously: it organizes TCI state code points for multiple entities, indicates the number of code points per entity, and provides a standardized configuration format that can be reused across different beamforming scenarios. This multi-functionality reduces overall message size compared to separate indication mechanisms for each entity.
Solution Approach 2:
The patent uses parameter-based configuration where each field in the field map contains a number indicating the count of TCI state code points for the corresponding entity. By encoding information as parameters rather than fixed structures, the system achieves flexibility in beamforming configuration while keeping the message size adaptive to the actual number of code points needed, rather than allocating fixed large blocks.
Data Source
AI summary
Apparatuses and methods for beam indication for multiple entities. A method of operating a user equipment (UE) includes receiving a configuration of one or more sets of transmission configuration indicator (TCI) states, receiving a first message activating TCI state code points, from the one or more sets of TCI states, and receiving a second message indicating TCI state code points for N entities. The second message includes a field map of size N fields and a list of TCI states code points in order of the N fields of the field map and according to a number of TCI state code points indicated by each field. Each field of the N fields correspond to an entity of the N entities. Each field indicates the number of TCI state code points indicated for the corresponding entity.