HARQ and CSI Multiplexing on PUCCH via Unified Flag
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Solution Overview
Problem
Current wireless communication systems, particularly in 5G networks, face challenges in efficiently multiplexing hybrid automatic retransmission request (HARQ) responses and channel state information (CSI) reports in physical uplink control channels (PUCCH), leading to ambiguities and potential issues in data transmission due to inconsistent simultaneousHARQ-ACK-CSI flag configurations across PUCCH resources.
Innovation Solution
The method involves transmitting an indication from the base station that multiplexing of HARQ and CSI is enabled in all PUCCH resources, allowing user equipment to generate and multiplex HARQ responses and CSI reports within these resources, and transmitting them to the base station, thereby simplifying the multiplexing process and reducing ambiguities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate simultaneousHARQ-ACK-CSI flag configurations are used for different PUCCH resources, then each PUCCH resource can be individually optimized, but system complexity increases and ambiguities arise in multiplexing operations
Solution Approach 1:
The patent applies universality by configuring the simultaneousHARQ-ACK-CSI flag identically across all PUCCH resources, making the flag configuration universal rather than resource-specific. This reduces complexity while maintaining the ability to handle different multiplexing scenarios through a unified configuration approach.
Solution Approach 2:
Instead of configuring different flags for different resources (customized approach), the patent inverts the approach by using the same flag configuration for all resources (unified approach), thereby simplifying the system while maintaining adaptability through the flag's binary control mechanism.
2Productivity
If multiplexing of HARQ and CSI is enabled in all PUCCH resources, then data transmission efficiency improves, but potential conflicts arise when both HARQ and CSI need simultaneous transmission
Solution Approach 1:
The simultaneousHARQ-ACK-CSI flag acts as a feedback mechanism that informs the UE whether multiplexing is permitted. By setting this flag to TRUE or FALSE, the system provides clear feedback control that prevents unreliable multiplexing operations while enabling efficient transmission when conditions are favorable.
Solution Approach 2:
The patent changes the state of the simultaneousHARQ-ACK-CSI flag parameter to control multiplexing behavior. By configuring this parameter uniformly across all PUCCH resources, the system dynamically adjusts multiplexing operations based on network conditions, balancing efficiency and reliability.
3Ease of manufacture
If inconsistent simultaneousHARQ-ACK-CSI flag configurations are used across PUCCH resources, then specific resource optimization is achieved, but ambiguities in multiplexing operations occur
Solution Approach 1:
The patent applies homogeneity by configuring the simultaneousHARQ-ACK-CSI flag identically across all PUCCH resources. This homogeneous configuration eliminates ambiguities and ensures clear, consistent multiplexing operations throughout the system, preventing information loss.
Data Source
AI summary
Certain aspects of the present disclosure provide techniques for avoiding out of order uplink data reception upon data radio bearer (DRB) release or quality of service (QoS) flow addition. An exemplary method that may be performed by a user equipment (UE), includes receiving an indication from a base station (B S) that multiplexing of hybrid automatic retransmission request (HARQ) information and channel state information (CSI) is enabled in all physical uplink control channel (PUCCH) resources, generating a first CSI report regarding a first downlink (DL) channel from the BS, multiplexing a HARQ response to a transmission from the BS and the first CSI report in a PUCCH, and transmitting the PUCCH to the BS via one of the PUCCH resources.