Resource Block Index Mapping for 5G Subcarrier Intervals
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In 5G wireless communication systems, the varying subcarrier intervals across different carriers lead to inconsistencies in resource allocation and scheduling due to differences in frequency location indicated by the same RB index, causing issues in identifying the correct resource location for both user equipment (UE) and base stations.
Innovation Solution
A method and apparatus for generating and managing RB index mapping information based on bandwidth and subcarrier interval information, allowing UE and base stations to identify and communicate the correct resource location using RB indexing, which accounts for different subcarrier intervals through synchronization signals, broadcasting signals, and frequency pattern configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the same RB index is used across different carriers with varying subcarrier intervals, then resource allocation can be standardized, but the frequency location indicated by the RB index becomes inconsistent
Solution Approach 1:
The patent changes the parameter of subcarrier interval to resolve the contradiction. By configuring different subcarrier intervals (e.g., 15 kHz, 30 kHz, 60 kHz) for different carriers and adjusting the RB index mapping accordingly, the system maintains standardized resource allocation procedures while ensuring that each RB index points to the correct frequency location specific to its carrier's subcarrier interval
Solution Approach 2:
The patent segments the frequency spectrum into resource blocks with different subcarrier intervals based on carrier characteristics. Each carrier is divided into RBs that are independently mapped according to its specific subcarrier interval, allowing the same RB index to represent different frequency locations in different carriers while maintaining systematic resource management
2Measurement precision
If resource allocation is customized for each carrier's subcarrier interval, then frequency location accuracy is maintained, but resource management complexity increases
Solution Approach 1:
The patent introduces dynamic subcarrier interval configuration where the RB index mapping is adjusted based on the carrier's subcarrier interval. The system dynamically adapts the resource block mapping according to the specific carrier characteristics, maintaining frequency location accuracy while managing complexity through standardized dynamic adjustment procedures rather than static custom mappings
3Adaptability or versatility
If multiple subcarrier intervals are supported for different services, then system versatility is improved, but resource identification difficulty increases
Solution Approach 1:
The patent introduces RB index mapping information as an intermediary between the standardized resource allocation system and the varying subcarrier intervals. This mapping information acts as a translator that converts standardized RB indices into correct frequency locations for different subcarrier intervals, making resource identification straightforward despite supporting multiple subcarrier intervals for different services
Data Source
AI summary
The disclosure relates to a 5G or pre-5G communication system for supporting a higher data transfer rate after a 4G communication system, such as LTE. A method for a terminal is provided. The method includes receiving bandwidth information from a base station, generating resource block (RB) index mapping information based on the bandwidth information and subcarrier interval information, receiving RB indexing information indicating resource information from the base station, and identifying the location of the resource information based on the RB indexing information, the subcarrier interval of the resource information, and the RB index mapping information, and a terminal performing the method. Furthermore, the disclosure may provide a method for a base station to operate with the terminal and a base station operating with the terminal.