FR2 PUCCH SCell Activation with Prioritized Search Timing
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Solution Overview
Problem
Existing wireless communication standards fail to account for the need to search an FR2 PUCCH SCell during simultaneous activation of multiple secondary cells, leading to unclear search procedures for this critical SCell.
Innovation Solution
A method and apparatus that determine a time domain resource and search sequence for an FR2 PUCCH SCell by prioritizing its activation, using first and second information to specify activation duration and search priorities among FR1 and FR2 secondary cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If cell search is skipped for FR2 SCells during simultaneous activation, then activation speed is improved, but reliability deteriorates for PUCCH SCells that actually require search
Solution Approach 1:
The patent applies local quality by differentiating the cell search requirement based on SCell type. FR2 PUCCH SCells are identified as requiring cell search while other FR2 SCells can skip it. The network device configures specific parameters (pucch-CellGroup, fr2-PUCCH-SCell) to mark which SCells are PUCCH SCells, enabling selective application of the cell search procedure rather than a blanket rule for all FR2 SCells.
Solution Approach 2:
The patent uses preliminary action by pre-configuring parameters that indicate whether an SCell is a PUCCH SCell before activation occurs. The network device configures fr2-PUCCH-SCell and pucch-CellGroup parameters in advance, so that when simultaneous activation occurs, the terminal device can immediately determine which SCells require cell search based on these pre-set configurations, avoiding the need to perform search during activation.
2Reliability
If cell search is performed for FR2 PUCCH SCell during simultaneous activation, then search completeness is improved, but activation time increases due to serial processing requirements
Solution Approach 1:
The patent segments the simultaneous activation process by separating PUCCH SCells from non-PUCCH SCells. The terminal device identifies which SCells are PUCCH SCells based on configured parameters and processes them differently. This segmentation allows the system to maintain serial processing for PUCCH SCells (ensuring search completeness) while potentially processing non-PUCCH SCells in parallel, thus reducing overall activation time.
Solution Approach 2:
The patent introduces dynamic processing by allowing the terminal device to adapt its activation strategy based on the identified SCell types. When PUCCH SCells are detected among simultaneously activated SCells, the terminal device dynamically adjusts by performing cell search only for those specific SCells while handling others differently, optimizing the balance between search completeness and activation time.
3Device complexity
If existing standard assumptions are used for simultaneous SCell activation, then device complexity is reduced, but adaptability deteriorates for FR2 PUCCH SCell scenarios
Solution Approach 1:
The patent enhances universality by creating a unified parameter configuration system that handles both PUCCH and non-PUCCH SCells through the same activation mechanism. The fr2-PUCCH-SCell and pucch-CellGroup parameters serve as universal indicators that work across different activation scenarios (single SCell activation, simultaneous activation, etc.), allowing the system to adapt to various situations without requiring separate processing logic for different cases.
Data Source
AI summary
This application provides a cell activation method, and related apparatus and system, and is applied to the field of communication technologies. The cell activation method provided in this application includes: receiving first information, where the first information indicates to activate a plurality of secondary cells, the plurality of secondary cells include one frequency range 2 (FR2) secondary cell and N1 frequency range 1 (FR1) secondary cells that need to be searched, and N1 is a positive integer; and determining, based on the first information, a time domain resource used for searching the FR2 secondary cell.