Physical Broadcast Channel Resource Mapping for Carrier Utilization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In wireless communication systems, particularly in LTE, the existing resource mapping methods for physical broadcast channels lead to low resource utilization rates, especially with the introduction of new carrier types like NCT carriers, where the resource mapping on different types of carriers differs, resulting in inefficient use of resources.
Innovation Solution
A method for determining the resource position of a physical broadcast channel that occupies M PRBs among m PRBs of a frequency band center, using a cell identifier and interval information to dynamically map the channel, ensuring optimal resource allocation and minimizing interference between cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the PBCH adopts the existing distribution manner (occupying 6 RBs at the middle of system bandwidth), then the broadcast message can be transmitted reliably, but the resource utilization rate of carriers is low
Solution Approach 1:
The patent applies dynamics by making the PBCH resource position configurable rather than fixed. The network can dynamically adjust the PBCH to occupy M RBs among m PRBs at the frequency band center, allowing flexible adaptation to different carrier types and system configurations, thereby improving resource utilization while maintaining transmission reliability
Solution Approach 2:
The patent changes the parameters of PBCH resource allocation by introducing configurable variables M and m, where M represents the number of RBs occupied by PBCH and m represents the total number of PRBs at the frequency band center. This parameterization allows the system to optimize resource usage based on different carrier types (traditional vs. NCT) and system bandwidths
2Device complexity
If the resource mapping of physical channels on different types of carriers is made uniform, then the system complexity is reduced, but the resource utilization rate of new carrier types decreases
Solution Approach 1:
The patent applies local quality by allowing different resource mapping strategies for different carrier types. Specifically, for NCT carriers, the PBCH can be configured to occupy M RBs among m PRBs at the frequency band center with flexible M values, while traditional carriers can maintain their existing mapping. This localized optimization improves resource utilization for new carriers without forcing uniform changes across the entire system
Solution Approach 2:
The patent creates a universal resource mapping framework that can accommodate both traditional and NCT carriers. By defining a configurable mapping scheme where PBCH occupies M RBs among m PRBs at the frequency band center, the system achieves multi-functionality - the same basic framework serves both carrier types with appropriate parameter selections, balancing complexity reduction with resource utilization improvement
Data Source
Figure 1~2
Figure 3~4
Figure 5~8
AI summary
The present invention provides a broadcast message transmission method, a base station and user equipment. The method includes: determining a resource position of a broadcast channel, wherein the broadcast channel occupies M physical resource blocks (PRBs) among m PRBs of a frequency band center of a carrier, m and M are positive integers, M is not greater than m, and m is not greater than the number of the PRBs corresponding to the system bandwidth; mapping the broadcast channel on the resource position; and sending a broadcast message through the broadcast channel. In the embodiments of the present invention, since the broadcast channel occupies M PRBs among m PRBs of a frequency band center of a carrier, by mapping the broadcast channel on the resource position and sending a broadcast message through the broadcast channel, the resource utilization rate of the carrier may be improved.