ETSI TS 125 431-2020由欧洲电信标准协会 IX-ETSI 发布于 2020-08-01,并于 2020-08-01 实施。
ETSI TS 125 431-2020 通用移动电信系统(UMTS) UTRAN Iub接口第1层(3GPP TS 25.431版本16.0.0release 16)的最新版本是哪一版?
最新版本是 ETSI TS 125 431-2024 。
The present document specifies the standards allowed to implement Layer 1 on the Iub interface. The specification of transmission delay requirements and O&M requirements is not in the scope of this document. In the following ‘Layer 1’ and ‘Physical Layer’ are assumed to be synonymous.
| 术语 | 描述 |
|---|---|
| Layer 1 Layer 1 | Synonymous with Physical Layer, as mentioned in the document. |
| Iub Layer 1 Iub Layer 1 | The Layer 1 of the Iub interface, which complies with the requirements of chapter 4 in TS 25.411. |
| ATM on Fractional E1/T1 ATM on Fractional E1/T1 | A specification that allows the use of n 64 kbit/s time slots within the scope of 'ATM on Fractional E1/T1'. |

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