Method and apparatus for implementing TD-SCDMA base station synchronization
A TD-SCDMA and base station synchronization technology, which is applied in the field of TD-SCDMA base station synchronization and clock synchronization, can solve the problems of interference to adjacent cells and inability to align other base stations at the frame boundary, etc., to improve service quality, implement low investment costs, Implement a high-impact effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0036] When a TD-SCDMA base station loses GPS synchronization, its crystal oscillator will be in a free-running state. In this case, the deviation between the actual frequency of the crystal oscillator and the nominal frequency mainly comes from the manufacturing error of the crystal oscillator itself, the aging frequency drift error of the crystal oscillator, and the temperature frequency difference caused by temperature changes during the working process, usually several PPM (parts per million). The frequency deviation of the free-running crystal oscillator can be divided into two categories. One is that the operating frequency of the crystal oscillator fluctuates around a central frequency due to short-term instability. According to the long-term statistical average analysis, such short-term deviations are not It will cause the crystal oscillator clock phase deviation to accumulate, so after a long time, it will not cause the base station's timing frame signal and other bas...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com