2024年4月27日发(作者：)

现象描述：很多时候解码出来的释放或失败原因都是代码，需要找到具体原因描述。

解决方法：协议中有此代码，整理如下。

经验总结：无线相关的原因列表

Cause ::= CHOICE {

radioNetwork CauseRadioNetwork,

transmissionNetwork CauseTransmissionNetwork,

nAS CauseNAS,

protocol CauseProtocol,

misc CauseMisc,

non-Standard CauseNon-Standard,

...,

radioNetworkExtension CauseRadioNetworkExtension

}

CauseRadioNetwork ::= INTEGER {

rab-pre-empted (1),

trelocoverall-expiry (2),

trelocprep-expiry (3),

treloccomplete-expiry (4),

tqueing-expiry (5),

relocation-triggered (6),

trellocalloc-expiry(7),

unable-to-establish-during-relocation (8),

unknown-target-rnc (9),

relocation-cancelled (10),

successful-relocation (11),

requested-ciphering-and-or-integrity-protection-algorithms-not-supported

(12),