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| Chinese National Standard Category: Mobile communication equipment |
| English Title: | Technical Specification of Upper Layer (Layer3) Signaling for 800MHz CDMA 1X Digital Cellular Mobile Telecommunication Network |
| Chinese Title: | 800MHz CDMA 1X数字蜂窝移动通信网接口技术要求:空中接口 层3信令 |
| Standard No.: | YDC 021-2003 |
| Category No.: | M37 |
| Issued by: | |
| Issued on: | |
| Implemented on: | 2003-5-28 |
| Status: | superseded |
| Superseded by: | YD/T 1583-2010 800MHz/2GHz cdma2000 Digital Cellular Mobile Communication Networks: Upper Layer (Layer 3)Signaling of Air Interface Specification |
| Superseded on: | 2011-1-1 |
| Abolished on: | |
| Superseding: | |
| Word Count: | 303000 words |
| Similar Standards: | YD/T 1790-2008 YD/T 4157-2022 GB/T 19490-2021 GB/T 15844-2017 GB/T 13722-2013 GB/T 29238-2012 YDB 126-2013 YD/T 1972.1-2009 YD/T 1973.3-2009 YD/T 1973.4-2009 YD/T 1973.2-2009 YD/T 1989-2009 YD/T 2035-2009 YD/T 2037-2009 YD/T 1972.3-2009 YD/T 1988-2009 YD/T 1972.2-2009 YD/T 1973.1-2009 YD/T 1591-2009 YD/T 1972.4-2009 |
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