Uplink Control Signaling Feedback Mode Configuration
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Solution Overview
Problem
In the LTE-A system, the simultaneous transmission of PUCCH and PUSCH on multiple carriers leads to ambiguity about where to send uplink control signaling, causing incorrect processing of uplink control signaling feedback.
Innovation Solution
A method and system where the base station configures a feedback mode for user equipment to transmit uplink control signaling on PUCCH and/or PUSCH, allowing simultaneous or separate transmission based on the presence of ACK/NACK messages, scheduling requests, and channel state information, ensuring correct demodulation by determining the appropriate carrier for each type of signaling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If PUCCH and PUSCH are allowed to be sent simultaneously on multiple carriers in LTE-A system, then the system bandwidth and frequency spectrum utilization rate are improved, but the ambiguity in determining where to send uplink control signaling arises, causing incorrect processing
Solution Approach 1:
The patent assigns different functions to different carriers: the first uplink component carrier is designated for control signaling transmission (PUCCH), while other uplink component carriers are designated for data transmission (PUSCH). This local differentiation resolves the ambiguity by establishing clear rules about which carrier handles which type of signaling, allowing simultaneous transmission without confusion about where to send control information.
2Stability of the object's composition
If uplink control signaling is multiplexed on PUSCH when UE has uplink data, then the single carrier property is maintained, but the flexibility in handling simultaneous PUCCH and PUSCH transmission is reduced
Solution Approach 1:
The patent introduces dynamic adaptability by allowing the system to switch between two modes: when the UE has uplink data, control signaling is multiplexed on PUSCH to maintain single carrier property; when the UE has no uplink data, PUCCH and PUSCH can be sent simultaneously on different carriers. This dynamic adjustment resolves the contradiction by adapting the transmission mode to the actual data transmission needs.
Data Source
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AI summary
The present invention provides a method and system for processing an uplink control signaling feedback. The method comprises: a base station configuring a feedback mode of an uplink control signaling for user equipment, wherein the feedback mode is used for instructing the user equipment a manner in which to transmit the uplink control signaling on a physical uplink control channel (PUCCH) and/or a physical uplink shared channel (PUSCH); and the user equipment sending the uplink control signaling according to the feedback mode. By way of the present invention, it is ensured that the base station can correctly demodulate the uplink control signaling.