PUCCH Resource Indication for Unambiguous Spatial Mapping
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing communication systems face challenges in accurately indicating multiple sets of resource information for Physical Uplink Control Channel configurations (PUCCH-configs), leading to ambiguity between terminal devices and network devices, particularly in scenarios requiring multiple PUCCH-configs for different services like eMBB and URLLC.
Innovation Solution
A resource indication method that includes sending and receiving first indication information to determine the spatial relation information corresponding to multiple PUCCH-configs, using improved MAC CE formats with explicit or implicit indication methods to clearly associate PUCCH-configs with their respective spatial relations, thereby eliminating ambiguity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple sets of resources are configured for different services (eMBB and URLLC), then the system can support various services simultaneously, but ambiguity arises in indicating which spatial relation information corresponds to which PUCCH-config
Solution Approach 1:
The patent segments the indication process by introducing a serving cell index field that divides the indication into separate segments - each segment clearly associating spatial relation information with a specific serving cell and PUCCH-config. This segmentation eliminates the ambiguity that arises when multiple resources are configured for different services.
2Loss of information
If only one set of resources is configured, then indication is simple and unambiguous, but the system cannot support multiple services simultaneously
Solution Approach 1:
The patent adds another dimension to the indication by introducing the serving cell index as an additional parameter. This dimensional extension allows the system to maintain clear and unambiguous indication while supporting multiple services, as each service's spatial relation information can be uniquely identified by its serving cell index.
3Adaptability or versatility
If multiple PUCCH-configs are configured for different services, then service diversity is enhanced, but understanding ambiguity occurs between terminal device and network device
Solution Approach 1:
The patent implements a feedback mechanism where the terminal device receives indication information including the serving cell index, determines the corresponding PUCCH-config based on this index, and uses this configured PUCCH-config for uplink control channel transmission. This closed-loop feedback ensures both the network device and terminal device have consistent understanding of which spatial relation information applies to which PUCCH-config.
Data Source
AI summary
The present application relates to a resource indication method, a terminal device, and a network device, the resource indication method comprising: a terminal device receives first indication information, which is used for indicating spatial relationship information corresponding to one or more physical uplink control channel configurations (PUCCH-configs); and the terminal device determines, according to the first indication information, at least one PUCCH-config corresponding to the spatial relationship information from among multiple PUCCH-configs. By using the embodiments of the present application, accurate resource indication can be implemented.