10.2.15 HANDOVER FROM UTRAN COMMAND
25.3313GPPProtocol specificationRadio Resource Control (RRC)Release 17TS
This message is used for handover from UMTS to another system e.g. GSM. One or several messages from the other system can be included in the Inter-RAT message information element in this message. These messages are structured and coded according to that systems specification.
RLC-SAP: AM
Logical channel: DCCH
Direction: UTRANUE
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Information Element/Group name |
Need |
Multi |
Type and reference |
Semantics description |
Version |
|---|---|---|---|---|---|
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Message Type |
MP |
Message Type |
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UE information elements |
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|
RRC transaction identifier |
MP |
RRC transaction identifier 10.3.3.36 |
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Integrity check info |
CH |
Integrity check info 10.3.3.16 |
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SR-VCC Info |
CV-SRVCC |
SR-VCC info 10.3.4.24a |
REL-8 |
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|
rSR-VCC info |
CV-rSRVCC |
rSR-VCC Info 10.3.3.36a |
REL-11 |
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|
Activation time |
MD |
Activation time 10.3.3.1 |
Default value is "now" |
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RB information elements |
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RAB information list |
OP |
1 to <maxRABsetup> |
For each RAB to be handed over. In handover to GERAN Iu mode the RAB information is included in the GERAN Iu message below. |
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|
>RAB info |
MP |
RAB info 10.3.4.8 |
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|
RAB info to replace |
CV-SRVCC |
RAB info to replace 10.3.4.11a |
REL-8 |
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Other information elements |
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CHOICE System type |
MP |
This IE indicates which specification to apply, to decode the transported messages |
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>GSM |
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>>Frequency band |
MP |
Enumerated (GSM/DCS 1800 band used), GSM/PCS 1900 band used) |
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>>CHOICE GSM message |
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|
>>>Single GSM message |
MP |
Bit string (no explicit size constraint) |
Formatted and coded according to GSM specifications The first/leftmost/most significant bit of the bit string contains bit 8 of the first octet of the GSM message. |
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|
>>>GSM message List |
MP |
1.to.<maxInterSysMessages> |
Bit string (1..512) |
Formatted and coded according to GSM specifications. The first/leftmost/most significant bit of the bit string contains bit 8 of the first octet of the GSM message. |
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|
>>CHOICE GERAN System Info type |
OP |
REL-6 |
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|
>>>SI |
MP |
GERAN system information 10.3.8.4f |
See [44] |
REL-6 |
|
|
>>>PSI |
MP |
GERAN system information 10.3.8.4f |
See [44] |
REL-6 |
|
|
>GERAN Iu |
REL-5 |
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|
>>Frequency band |
MP |
Enumerated (GSM/DCS 1800 band used), GSM/PCS 1900 band used) |
REL-5 |
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|
>>CHOICE GERAN Iu message |
REL-5 |
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|
>>>Single GERAN Iu message |
MP |
Bit string (no explicit size constraint) |
The first/leftmost/most significant bit of the bit string contains bit 8 of the first octet of the message. |
REL-5 |
|
|
>>>GERAN Iu message List |
MP |
1 to <maxInterSysMessages> |
Bit string (1..32768) |
The first/leftmost/most significant bit of the bit string contains bit 8 of the first octet of the message. |
REL-5 |
|
>cdma2000 |
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|
>>cdma2000MessageList |
MP |
1.to.<maxInterSysMessages> |
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|
>>>MSG_TYPE(s) |
MP |
Bit string (8) |
Formatted and coded according to cdma2000 specifications. The MSG_TYPE bits are numbered b0 to b7. The first/leftmost/most significant bit of the bit string contains bit 7 of the MSG_TYPE. |
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|
>>>cdma2000Messagepayload(s) |
MP |
Bit string (1..512) |
Formatted and coded according to cdma2000 specifications. The first/leftmost/most significant bit of the bit string contains the bit 7 of the first octet of the cdma2000 message. |
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|
>E-UTRA |
REL-8 |
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|
>>E-UTRA message |
MP |
Octet string |
Formatted and coded according to E-UTRA specifications The first/leftmost/most significant bit of the octet string contains bit 8 of the first octet of the E-UTRA message. |
REL-8 |
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Condition |
Explanation |
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SRVCC |
This IE is mandatory present when an SR-VCC procedure is initiated and not needed otherwise. |
|
rSRVCC |
This IE is mandatory present when an rSR-VCC procedure is initiated and not needed otherwise. |