hello 
        CancelLocation is a operation of MAP,and in invoke
component,operation name is the value of operation TLV,and after it,is
parameter TLV,  my question is how to encode/decode parameters?
        If cancellationType and extensionContainer are not present, whether
the first octet of parameter is the tag of  identity(certainly identity is
choice,it's tag equals to the tag of imsi or imsi-WithLMSI) ?

>>>>>No, if both cancellationType & extensionContainer  are absent I
observed the encoding as below ( supposing imsi value is "1234")
0xA3 0x06 0x04 0x04 0x31 0x32 0x33 0x34


Warm regards,
Vasa

        And if so, how to  judge  the two conditions as follows:
        1  identity only contain imsi,and  cancellationType is present,so
the 0x30 of CancelLocationArg SEQUENCE will present.
                from parameter's first octet: 
0x30(CancelLocationArg SEQUENCE) 0xXX {0x04(IMSI OCTET) 0xXX
����}{0x0A(CancellationType Enumerated type) 0xXX 0x00(or 0x01)}
        2  identity contain  imsi-WithLMSI,and the tag of imsi-WithLMSI is
0x30
                from parameter's first octet: 
0X30(imsi-WithLMSI SEQUENCE) 0xXX {0x04(IMSI OCTET) 0xXX ����}{0x04(LMSI
OCTET) 0xXX ����}

so how to judge 1 or 2 ? 
        

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