Wireless Synchronization Status Advertising for Valid Clock Selection
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Solution Overview
Problem
Current wireless communication systems lack effective synchronization of timing between base stations, leading to potential communication failures and inefficiencies due to unsynchronized remote radio heads.
Innovation Solution
Implement a method to advertise and synchronize synchronization status and validity over a common public radio interface (CPRI) between communication devices, allowing selection of a valid clock source and maintaining communication links even in the event of synchronization failures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If synchronization status is not advertised between communication devices, then device complexity is reduced, but timing synchronization between base stations deteriorates leading to communication failures
Solution Approach 1:
The patent implements a feedback mechanism where the first communication device receives synchronization status information from the second communication device and uses this feedback to determine whether to switch clock sources. This allows the system to maintain timing synchronization reliability by continuously monitoring and responding to synchronization status without requiring complex centralized control.
Solution Approach 2:
Each communication device independently determines its own clock source switching based on received synchronization status information. The first communication device autonomously decides whether to switch from a first clock source to a second clock source based on the synchronization status of the second communication device, eliminating the need for complex external coordination while maintaining reliable synchronization.
2Reliability
If multiple clock sources are monitored for synchronization, then timing synchronization reliability is improved, but device complexity increases due to additional monitoring and switching mechanisms
Solution Approach 1:
The patent applies local quality by having each communication device independently manage its own clock source switching based on local reception of synchronization status information. Instead of a centralized complex management system, each device locally determines whether to switch clock sources based on the synchronization status of its peer, simplifying the overall system architecture while maintaining synchronization reliability.
Solution Approach 2:
The system dynamically switches between different clock sources based on real-time synchronization status. The first communication device can dynamically transition from using a first clock source to a second clock source when synchronization status indicates the second device is better synchronized, allowing the system to adapt to changing conditions without requiring complex pre-configured redundancy.
3Reliability
If synchronization status is advertised over CPRI interface, then timing synchronization between distributed units and radio units is improved, but communication overhead increases
Solution Approach 1:
The patent extracts only the essential synchronization status information that is needed for clock source switching decisions and transmits this extracted information over the CPRI interface. By taking out only the critical synchronization status data rather than transmitting complete synchronization datasets, the system maintains link synchronization reliability while minimizing communication overhead and preserving bandwidth efficiency.
Data Source
AI summary
A method, a system, and a computer program product for transmitting synchronization information in a wireless communication system. A synchronization communication status is received from one or more communication devices communicating in a wireless communication system. Based on the received synchronization communication status, at least one communication device in the one or more communication devices is selected and a communication link is synchronized with the selected at least one communication device. At least one data packet is transmitted using the synchronized communication link.