jolly has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-gsm-manuals/+/40424?usp=email )

Change subject: Corrected description of MSISDN IE and IMEI IE coding ......................................................................

Corrected description of MSISDN IE and IMEI IE coding

1 2 3 4 5 6 7 8 +-------------------------------+ | MSISDN IE type |Res| octet 1 +-------------------------------+ | Length of IE content | octet 2 +-------------------------------+ | Length of BCD content | octet 3 +-------------------------------+ | Digit 1 | Digit 2 | octet 4..n | .... | | +-------------------------------+

The length of the BCD content specifies how many subsequent octets contain BCD data, but it does not indicate the number of digits. This length must be less than the total length of the IE content. Any octets following the BCD content shall be ignored.

Related: OS#6797 Change-Id: I4db05e4a01199334b75fffd60270b88f541b98f4 --- M common/chapters/gsup.adoc 1 file changed, 6 insertions(+), 3 deletions(-)

git pull ssh://gerrit.osmocom.org:29418/osmo-gsm-manuals refs/changes/24/40424/1

diff --git a/common/chapters/gsup.adoc b/common/chapters/gsup.adoc index f5cce14..96930b9 100644 --- a/common/chapters/gsup.adoc +++ b/common/chapters/gsup.adoc @@ -1510,6 +1510,10 @@ BCD Number in 3GPP TS 24.008. It will be stored by the SGSN or VLR and then passed as is to the GGSN during the activation of the primary PDP Context.

+The length of the BCD content specifies how many subsequent octets contain BCD data, +but it does not indicate the number of digits. This length must be less than the total +length of the IE content. Any octets following the BCD content shall be ignored. + [packetdiag] ---- { @@ -1519,9 +1523,7 @@ 0-6: PDP type IEI 7: Res 8-15: Length of IE content - 16-19: NPI - 20-22: TON - 23: ext + 16-23: Length of BCD content 24-27: Digit 1 28-31: Digit 2 32-35: Digit ... @@ -1628,6 +1630,7 @@ ==== IMEI

The IMEI encoded as Called Party BCD Number in 3GPP TS 24.008. +This IE has the same format as described in <<gsup-ie-msisdn>>.

[[gsup-ie-imei-result]] ==== IMEI Check Result