TW428405B - Method and system using data interface for frame synchronization in a multi-cell system - Google Patents
Method and system using data interface for frame synchronization in a multi-cell systemInfo
- Publication number
- TW428405B TW428405B TW88109761A TW88109761A TW428405B TW 428405 B TW428405 B TW 428405B TW 88109761 A TW88109761 A TW 88109761A TW 88109761 A TW88109761 A TW 88109761A TW 428405 B TW428405 B TW 428405B
- Authority
- TW
- Taiwan
- Prior art keywords
- frame
- base stations
- ccfp
- transmission
- pulse
- Prior art date
Links
Landscapes
- Mobile Radio Communication Systems (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Abstract
The present invention proposes a method and a system for accomplishing synchronous frame transmission in a multi-cell system. As propagation delays from a central control fixed part (CCFP) to several base stations may be different due to various distances, receiver/transmitter of the cable data interface between the CCFP and the base stations must be synchronized to the same frame pulse. These propagation delays may be regarded as constants and should be stored at each base station after being measured. During data transmission from the CCFP to the base stations, a specific word should be regularly placed in the transmission frame. When the specific word is detected at any base station during the fixed cycle of the frame pulse, the frame signal will be delayed for a time value starting from the rising edge of the next pulse before being transmitted out. The time value is equal to the difference between the cycle length of the frame pulse and the propagation delay value. After the frame delay, the base stations will start transmitting data frames. Then, all frames transmitted out from various base stations are synchronous.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW88109761A TW428405B (en) | 1999-06-11 | 1999-06-11 | Method and system using data interface for frame synchronization in a multi-cell system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW88109761A TW428405B (en) | 1999-06-11 | 1999-06-11 | Method and system using data interface for frame synchronization in a multi-cell system |
Publications (1)
Publication Number | Publication Date |
---|---|
TW428405B true TW428405B (en) | 2001-04-01 |
Family
ID=21641063
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW88109761A TW428405B (en) | 1999-06-11 | 1999-06-11 | Method and system using data interface for frame synchronization in a multi-cell system |
Country Status (1)
Country | Link |
---|---|
TW (1) | TW428405B (en) |
-
1999
- 1999-06-11 TW TW88109761A patent/TW428405B/en not_active IP Right Cessation
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Legal Events
Date | Code | Title | Description |
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GD4A | Issue of patent certificate for granted invention patent | ||
MM4A | Annulment or lapse of patent due to non-payment of fees |