PUCCH Sequence Configuration Using Base Sequences and Cyclic Shifts
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Solution Overview
Problem
There is a desire for further improvements in New Radio (NR) technology to enhance wireless communication systems, particularly in managing uplink control information (UCI) transmission to improve communication efficiency and reliability between access points and user equipment.
Innovation Solution
A method for wireless communications involving user equipment (UE) and network entities that includes receiving signaling for base sequences and cyclic shifts to transmit uplink control information (UCI) within a transmission time interval (TTI), allowing for improved UCI transmission using a selected base sequence and cyclic shift.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional UCI transmission methods are used in NR systems, then basic communication functionality is maintained, but communication efficiency and reliability are insufficient
Solution Approach 1:
The patent applies parameter changes by modifying the base sequence and cyclic shift parameters of the PUCCH transmission. Specifically, different base sequences and cyclic shift values are selected and applied to different UCI transmissions to improve both reliability and efficiency. This parameter optimization allows the system to achieve better performance without fundamental changes to the transmission architecture.
2Productivity
If NR technology is enhanced to improve communication efficiency, then system performance increases, but complexity of sequence configuration increases
Solution Approach 1:
The patent implements dynamics by enabling flexible, adaptive selection of base sequences and cyclic shifts based on transmission conditions and requirements. The system can dynamically adjust which parameters to use for different UCI transmissions, allowing optimization of communication efficiency while managing complexity through conditional selection rather than fixed complex configurations.
Solution Approach 2:
By optimizing and standardizing the parameter selection process for base sequences and cyclic shifts, the patent reduces the effective complexity of configuration. Instead of managing numerous complex parameters, the system focuses on optimizing key parameters (base sequence index and cyclic shift value) according to specific transmission scenarios, thereby improving efficiency without proportionally increasing configuration complexity.
Data Source
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AI summary
Certain aspects of the present disclosure relate to methods and apparatus relating to a physical uplink control channel (PUCCH) sequence design. In some cases, a UE receives (from a network entity, such as a base station/gNB) signaling indicating a base sequence from a set of base sequences available for use in sending one or more bits of uplink control information (UCI) within a transmission time interval (TTI), receives signaling indicating a set of feasible cyclic shifts, selects one of the cyclic shifts based on a value of the one or more bits of UCI, and transmits the UCI using the base sequence and the selected cyclic shift.