Multi-Beam PUCCH Transmission With Reference-Linked Spatial Filters
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face limitations in communication flexibility and efficiency, particularly in managing uplink control channels, which affect the performance of user equipment and base stations.
Innovation Solution
Implementing a method where user equipment and base stations apply spatial domain transmission filters based on multiple reference signal resource indices for physical uplink control channel (PUCCH) transmission, enhancing the flexibility and efficiency of communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single spatial domain transmission filter is used for PUCCH transmission, then the device complexity is reduced, but the communication flexibility and efficiency are limited
Solution Approach 1:
The patent segments the spatial domain transmission into multiple independent filters, each associated with a specific reference signal resource index. This allows the system to selectively apply different spatial filters for different PUCCH transmissions, thereby improving communication flexibility without requiring the management of a single complex filter.
Solution Approach 2:
The patent applies different spatial domain transmission filters locally based on the specific reference signal resource index being used. Each filter is optimized for its corresponding reference signal, allowing the system to adapt the spatial characteristics to the specific transmission requirements, thus improving flexibility while keeping each individual filter relatively simple.
2Productivity
If multiple spatial domain transmission filters are applied based on multiple reference signal resource indices, then communication efficiency is improved, but the device complexity increases
Solution Approach 1:
The patent creates a universal mapping relationship between reference signal resource indices and spatial domain transmission filters. This mapping allows the same mechanism to be applied across multiple reference signals and PUCCH resources, improving communication efficiency through consistent multi-beam operation while avoiding the need for separate complex configurations for each case.
Solution Approach 2:
The patent changes the parameter of spatial domain transmission by selecting different filters based on reference signal resource indices. This parameter change approach allows the system to adapt transmission characteristics dynamically, improving communication efficiency while managing complexity through systematic parameter selection rather than complex structural changes.
3Adaptability or versatility
If multiple reference signal resource indices are configured, then the adaptability of PUCCH transmission is enhanced, but the difficulty of detecting and measuring increases
Solution Approach 1:
The patent introduces the reference signal resource index as an intermediary that links the spatial domain transmission filter selection to the PUCCH transmission. This intermediary simplifies the detection and measurement process by providing a clear mapping relationship, where the index directly indicates which filter to use, thereby enhancing adaptability without significantly increasing measurement difficulty.
Data Source
AI summary
A user equipment (UE) is described. Receiving circuitry receives first information including a plurality of the reference signal resource indices. The receiving circuitry also receives second information including a physical uplink control channel (PUCCH) configuration. Transmitting circuitry transmits a PUCCH. A first spatial domain transmission filter is applied based on a first reference signal resource index in the plurality of reference signal resource indices. A second spatial domain transmission filter is applied based on a second reference signal resource index in the plurality of reference signal resource indices.