CORESET Resource Positioning With Indexed Parameter Configurations
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Solution Overview
Problem
The limited resource blocks in private network spectrums for new radio access technology lead to challenges in configuring the time-frequency resource position of control resource set 0 (CORESET #0), resulting in excessive signaling overheads.
Innovation Solution
A method and apparatus that utilize a set of K parameter configurations, including parameters such as resource blocks, frequency domain resource offset, time domain symbols, mapping manner, and multiplexing mode, to determine the time-frequency resource position of CORESET, reducing signaling overheads by indicating one of these configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If all possible combinations of parameter values are indicated to determine CORESET #0 time-frequency resource position, then complete configuration coverage is achieved, but signaling overhead becomes excessively high
Solution Approach 1:
The patent segments the complete parameter configuration space into K representative parameter configurations. Instead of indicating all possible parameter combinations, the system selects K typical configurations that cover the main deployment scenarios. The first indication information then points to one of these K configurations, significantly reducing signaling overhead while maintaining adequate configuration coverage for private network spectrum scenarios.
Solution Approach 2:
The patent changes the parameter representation from indicating all possible parameter value combinations to indicating an index among K pre-defined parameter configurations. This parameter transformation reduces the signaling burden by encoding multiple parameter values (quantity of RBs, frequency domain resource offset, quantity of time domain symbols, mapping manner, multiplexing mode, puncturing manner) into a single index value that references a complete configuration set.
2Use of energy by moving object
If narrowband private network spectrum is used for new radio access, then spectrum efficiency is improved, but the quantity of supported resource blocks becomes limited
Solution Approach 1:
The patent addresses the limited resource block quantity in narrowband private network spectrum by introducing flexible parameter configurations that include quantity of RBs as a configurable parameter. The system can select from K parameter configurations with different RB quantities (e.g., 12 RBs, 15 RBs, 20 RBs, 24 RBs) to match the available spectrum width, enabling efficient adaptation to narrowband conditions while maintaining proper CORESET configuration.
Data Source
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AI summary
This application provides a communication method and a communication apparatus. The method includes: receiving first indication information, where the first indication information indicates a first parameter configuration, the first parameter configuration is one of K parameter configurations, and K is a positive integer; and any parameter configuration in the K parameter configurations includes one or more of the following parameters: a quantity of resource blocks RBs, a frequency domain resource offset, a quantity of time domain symbols, and a mapping manner; and determining a time-frequency resource position of a first control resource set CORESET based on the first parameter configuration. According to the method described in this application, signaling resources can be saved.