PBCH Extension Bit Mechanism for Broadcast Capacity
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Solution Overview
Problem
Current communication technologies lack a technical solution for extending the Physical Broadcast Channel (PBCH), which limits its communication capability and compatibility with different terminals.
Innovation Solution
The method involves adding a PBCH extension bit to the synchronous broadcast block, allowing the base station to indicate the presence or absence of PBCH extension information, enabling the transmission of additional information while maintaining compatibility with existing systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If PBCH extension is implemented to enhance communication capability, then the information transmission capacity is improved, but the system complexity increases
Solution Approach 1:
The PBCH is segmented into a original PBCH part and an extension part. The original PBCH maintains backward compatibility while the extension part carries additional information. This segmentation allows the system to enhance information capacity without completely redesigning the entire PBCH structure, thus managing system complexity.
Solution Approach 2:
The PBCH extension structure embeds the original PBCH within a larger framework. The extension part is nested alongside the original PBCH, with the original PBCH serving as a foundation. This nesting approach allows the system to maintain the original functionality while adding extension capabilities, balancing information capacity enhancement with complexity management.
2Adaptability or versatility
If PBCH extension bit is added to indicate extension information, then the adaptability to different terminals is improved, but the PBCH structure becomes more complex
Solution Approach 1:
A PBCH extension bit is added locally to the PBCH structure to indicate whether extension information is present. This local modification provides terminals with the ability to identify and process extended PBCH accordingly, improving adaptability without requiring a complete structural overhaul of the entire PBCH system.
Solution Approach 2:
The PBCH structure is made dynamic through the addition of the extension bit, which can be set or cleared based on whether extension information is transmitted. This dynamic indicator allows the system to adapt between different modes (with/without extension) without requiring terminals to handle all possible structures simultaneously, thus improving versatility while managing complexity.
Data Source
Figure 1~2A
Figure 2B~3
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AI summary
The present disclosure provides a method for extending a PBCH. The method is applied to a base station. A synchronous broadcast block of a PBCH is provided with a PBCH extension bit. The method includes: when extension of a PBCH is required, activating a PBCH extension bit indication function, wherein a PBCH extension bit is used to indicate whether there is PBCH extension information; when transmission of the PBCH extension information is required, setting the PBCH extension bit in a first synchronous broadcast block to be a first state, wherein the first state is used to indicate that there is PBCH extension information; transmitting the first synchronous broadcast block to a terminal; generating a PBCH extension block, wherein the PBCH extension block includes the PBCH extension information; and transmitting the PBCH extension block at a set extension position, such that the terminal receives the PBCH extension block at the set extension position, and obtains the PBCH extension information from the PBCH extension block. The present disclosure can achieve a function of extending a PBCH and improve communication capability of a PBCH after the PBCH is extended.