PUCCH UCI Multiplexing for Multi-Panel Collision Handling
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Solution Overview
Problem
Existing wireless communication systems struggle to efficiently manage uplink control information (UCI) multiplexing and dropping on physical uplink control channels (PUCCH) for UEs with multiple antenna panels, leading to inconsistencies in antenna panel usage understanding between the UE and the network, and challenges in handling PUCCH collisions.
Innovation Solution
The proposed solution involves methods for determining and transmitting beam-to-panel mappings, configuring UCI reporting, and handling PUCCH collisions using multiple antenna panels, including explicit and implicit reporting of antenna panel identifiers, and applying various PUCCH collision handling rules to ensure consistent communication and efficient UCI transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple antenna panels are used for PUCCH transmission, then communication reliability and capacity are improved, but inconsistency in antenna panel usage understanding between UE and network occurs
Solution Approach 1:
The patent implements feedback mechanisms where the UE reports antenna panel usage information to the network, and the network provides configuration feedback. This ensures both parties maintain consistent understanding of which antenna panels are active and how they should be used for PUCCH transmissions, resolving the information inconsistency problem while maintaining multi-panel reliability benefits
Solution Approach 2:
The patent introduces configuration messages and reporting structures as intermediaries between the UE and network. These intermediaries carry explicit antenna panel identification and usage configuration information, ensuring both parties have a common understanding of panel usage without direct ambiguity
2Productivity
If UCI multiplexing is implemented on PUCCH, then spectral efficiency is improved, but complexity of managing multiple UCIs increases
Solution Approach 1:
The patent segments the UCI management process into distinct handling rules for different PUCCH collision scenarios. By dividing the complex multiplexing management into case-specific rules (e.g., different behaviors for different PUCCH format combinations, different priority handling for different UCI types), the system achieves efficient multiplexing without overwhelming complexity
Solution Approach 2:
The patent implements dynamic UCI multiplexing management where the handling rules adapt based on real-time conditions such as PUCCH format, payload size, and collision scenarios. This dynamic approach allows efficient spectral utilization while keeping complexity manageable through context-dependent decision making
3Stability of the object's composition
If PUCCH collision handling rules are applied, then communication consistency is improved, but transmission delays may occur
Solution Approach 1:
The patent applies preliminary action by establishing PUCCH collision handling rules in advance through configuration messages. These rules are pre-agreed upon between UE and network, allowing consistent collision resolution without real-time negotiation delays, thus maintaining both consistency and timing efficiency
Data Source
AI summary
A user equipment (UE) includes a set of multiple antenna panels and a processor. The processor is configured to identify a time domain overlap between, at least, a first physical uplink control channel (PUCCH) to be transmitted from a first antenna panel of the set of multiple antenna panels and a second PUCCH to be transmitted from a second antenna panel of the set of multiple antenna panels. The first PUCCH is intended to carry a first uplink control information (UCI), and the second PUCCH is intended to carry a second UCI. The processor is further configured to determine whether to transmit one or both of the first UCI or the second UCI, in at least one of the first PUCCH or the second PUCCH. The determination is made at least partly based on a PUCCH collision handling rule for multiple antenna panels.