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标题: 38.331中信令后面的标签是什么意思？ [查看完整版帖子] [打印本页]

时间: 2021-6-29 14:45

作者: xiangchina12 标题: 38.331中信令后面的标签是什么意思？

不理解这些便签是什么意思，虽然协议前面有说明，翻译过来还是不清楚协议想表达个什么意思，协议原文摘录如下

Abbreviation

Meaning

Cond conditionTag

Conditionally present

Presence of the field is specified in a tabular form following the ASN.1 segment.

CondC conditionTag

Configuration condition

Presence of the field is conditional to other configuration settings.

CondM conditionTag

Message condition

Presence of the field is conditional to other fields included in the message.

Need S

Specified

Used for (configuration) fields, whose field description or procedure specifies the UE behavior performed upon receiving a message with the field absent (and not if field description or procedure specifies the UE behavior when field is not configured).

Need M

Maintain

Used for (configuration) fields that are stored by the UE i.e. not one-shot. Upon receiving a message with the field absent, the UE maintains the current value.

Need N

No action (one-shot configuration that is not maintained)

Used for (configuration) fields that are not stored and whose presence causes a one-time action by the UE. Upon receiving message with the field absent, the UE takes no action.

Need R

Release

Used for (configuration) fields that are stored by the UE i.e. not one-shot. Upon receiving a message with the field absent, the UE releases the current value.

时间: 2021-6-30 08:05

作者: xiangchina12

尤其是Need S Specified
Used for (configuration) fields, whose field description or procedure specifies the UE behavior performed upon receiving a message with the field absent (and not if field description or procedure specifies the UE behavior when field is not configured).
这句话让人觉得前后矛盾

时间: 2022-10-19 13:44

作者: cheryhappy

xiangchina12 发表于 2021-6-30 08:05
尤其是Need S Specified
Used for (configuration) fields, whose field description or procedure specif ...

我理解此类参数需要显式指定，如果该域不存在，UE需要使用其它值代替。
scramblingID0
DL DMRS scrambling initialization (see TS 38.211 [16], clause 7.4.1.1.1). When the field is absent the UE applies the value physCellId configured for this serving cell.

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