RedCap Downlink Control Resources for Initial BWP Operations
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Solution Overview
Problem
Existing wireless communication technologies struggle to efficiently configure resources for reduced capability (RedCap) terminals, which require low cost, low complexity, and coverage enhancement, particularly in terms of bandwidth part (BWP) usage.
Innovation Solution
The method involves sending common configuration information for a downlink control channel to indicate specific resources, such as additional common control resource sets (CORESET), search spaces, or CORESET0, to facilitate efficient operation of RedCap terminals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If common configuration information is sent for initial BWP, then RedCap terminals can perform operations like RAR monitoring, paging, and system message monitoring, but the configuration complexity increases
Solution Approach 1:
The patent applies universality by configuring common control resources (CORESET and search space) that can be universally used by both RedCap terminals and other terminal types. The common configuration information includes parameters that enable multiple operations (RAR monitoring, paging, system message monitoring) to be performed using the same resource configuration framework, eliminating the need for separate configurations for each terminal type and operation.
Solution Approach 2:
The patent segments the configuration process into common configuration information (applied to all terminals) and terminal-specific configuration information (applied only when needed). By separating these into distinct segments, the system achieves reliable multi-operation support for RedCap terminals while avoiding unnecessary configuration complexity for terminals that don't require these additional operations.
2Productivity
If additional common control resource sets and search spaces are configured, then resource utilization efficiency improves, but device complexity increases
Solution Approach 1:
The patent implements universality by creating a common control resource configuration that serves multiple purposes: RAR monitoring, paging, and system message monitoring all use the same configured CORESET and search space resources. This multi-functional approach improves resource utilization efficiency by eliminating redundant configurations while the standardized configuration method keeps the added complexity manageable.
Solution Approach 2:
The patent applies preliminary action by pre-configuring the common control resources (CORESET and search space) before they are needed for specific operations. The common configuration information is sent in advance, allowing the terminal to have the necessary resources ready for RAR monitoring, paging, and system message monitoring without requiring complex on-demand configuration for each operation.
3Device complexity
If RedCap terminals use existing BWP configurations, then device complexity is reduced, but coverage enhancement capability is insufficient
Solution Approach 1:
The patent applies local quality by providing RedCap terminals with specific local configurations (additional common control resource sets and search spaces) that are tailored to their coverage enhancement needs, while maintaining compatibility with the overall common configuration framework. This allows RedCap terminals to achieve enhanced coverage capability without requiring complete redesign of the entire BWP configuration system.
Data Source
AI summary
A method for configuring a resource is performed by an access network device, and includes: sending common configuration information of a downlink control channel for an initial bandwidth part (BWP) configuration; wherein the common configuration information of the downlink control channel indicates a predetermined resource for a first-type terminal to perform a predetermined operation; and the predetermined resource comprises at least one of: an additional common control resource set (CORESET); an additional common search space; a common CORESET0; or a common search space 0.