BWP Activation Feedback Mechanism for 5G NR Reliability
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Solution Overview
Problem
In the 5G NR system, there is a lack of clear methods for BWP activation, leading to inconsistencies between terminals and network devices regarding the activated BWP, which can result in transmission interruptions and reduced reliability.
Innovation Solution
The proposed method involves a terminal receiving first information from a network device to activate a second BWP, transmitting feedback response information, and determining the activated BWP after a target time period, ensuring both the terminal and network device have a consistent understanding of the activated BWP.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If BWP activation is performed without clear confirmation methods, then the activation process is simple and fast, but inconsistencies occur between terminal and network device regarding the activated BWP
Solution Approach 1:
The patent implements a feedback mechanism where the terminal sends confirmation information to the network device after receiving BWP activation indication. This feedback loop ensures both parties have consistent understanding of the activated BWP, resolving the reliability issue while maintaining reasonable process complexity through standardized feedback timing and content.
Solution Approach 2:
The patent establishes predetermined timing relationships for BWP activation confirmation. The terminal determines when to send feedback and when to consider BWP activated based on pre-configured timing parameters from the network device, eliminating the need for complex real-time negotiation and ensuring consistency.
2Reliability
If BWP activation timing is not precisely defined, then the activation process is flexible, but transmission interruptions occur due to inconsistent understanding of activated BWP
Solution Approach 1:
The network device pre-configures timing parameters including the time unit for sending feedback and the target time period for BWP activation. This preliminary configuration ensures both terminal and network device operate with consistent timing expectations, preventing transmission interruptions while maintaining operational simplicity through standardized parameter sets.
Solution Approach 2:
The patent allows flexible configuration of timing parameters by the network device, enabling dynamic adjustment of feedback timing and activation delay based on system conditions. This dynamic approach maintains reliability while adapting to different operational scenarios without requiring complex real-time negotiations.
3Reliability
If feedback response timing is not standardized, then the system can adapt to different scenarios, but the activation process becomes unreliable and transmission interruptions occur
Solution Approach 1:
The network device provides pre-configured timing parameters that standardize feedback response timing. The terminal uses these predetermined parameters to determine exactly when to send feedback and when to activate the BWP, ensuring reliable and accurate activation confirmation while maintaining adaptability through network-controlled parameter configuration.
Data Source
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AI summary
The embodiment of the present application discloses an activation method for a BWP and related products, including: a terminal receives a first downlink control signaling DCI, the first DCI is used by a scheduling terminal to transmit uplink data through a physical uplink shared channel PUSCH in a target time unit; the terminal receives a second DCI, and the feedback response information of the second DCI is transmitted in the target time unit, and the transmitting time of the second DCI is before the target time unit or the same as the target time unit; the terminal determines, according to the transmitting time of the second DCI, the feedback response information for the transmission of the second DCI through the PUSCH in the target time unit. The embodiment of the present application is beneficial to improvement of both the accuracy and reliability of data scheduling in a communication system.