ETSI STC SMG2 Handover ad-Hoc	Document	Tdoc 25/00
Revised Tdoc RPA000031	
Copenhagen, Denmark
6 – 8 March, 2000		e.g. for 3GPP use the format  TP-99xxx 
or for SMG, use the format  P-99-xxx	

CHANGE REQUEST	Please see embedded help file at the bottom of this
page for instructions on how to fill in this form correctly.	
	
	08.08	CR	A182r2	Current Version:	8.2.0		
					
GSM (AA.BB) or 3G (AA.BBB) specification number 		 CR number as allocated by MCC support team	
	
For submission to: 	SMG#31bis	for approval	X		strategic		(for SMG	
list expected approval meeting # here 	for information			non-strategic		use only)	
			
Form: CR cover sheet, version 2 for 3GPP and SMG        The latest version of this form is available from: ftp://ftp.3gpp.org/Information/CR-Form-v2.doc	
	
Proposed change affects:	(U)SIM		ME		UTRAN / Radio	x	Core Network	x	
(at least one should be marked with an X)	
	
Source:	Ericsson, Siemens,	Date: 	000304	
	
Subject:	BSSMAP Handover Command for handover to UMTS 	
	
Work item:	Handover GSM to UMTS	
	
Category: 	F	Correction		Release: 	Phase 2		
	A	Corresponds to a correction in an earlier release			Release 96		
(only one category 	B	Addition of feature	X		Release 97		
shall be marked	C	Functional modification of feature	 		Release 98		
with an X)	D	Editorial modification			Release 99	X	
				Release 00		
	
Reason for 
change:
	Mapping of Handover to UTRAN Handover Command in existing BSSMAP Handover Command	
	
Clauses affected:	Chapter 3.2.1.11	
	
Other specs	Other 3G core specifications		  List of CRs:		
affected:	Other GSM core specifications	X	  List of CRs:		
	MS test specifications		  List of CRs:		
	BSS test specifications		  List of CRs:		
	O&M specifications		  List of CRs:		
	
Other 
comments:		

  <--------- double-click here for help and instructions on how to create a CR.

	3.2.1.11	HANDOVER COMMAND
This message is sent from the MSC to the BSS via the relevant SCCP connection and contains the target channel to which the MS should retune.
INFORMATION ELEMENT	REFERENCE	DIRECTION	TYPE	LEN	
					
 Message Type	 3.2.2.1 	 MSC-BSS 	 M	 1 	
 	 	 		 	
 Layer 3 Information (1)	 3.2.2.24	 MSC-BSS 	 M 	11-n 	
 	 	 		 	
 Cell Identifier 	 3.2.2.17	 MSC-BSS 	 O	3-10 	
1	This information field carries a radio interface HANDOVER COMMAND message. In case of Intersystem handover to UMTS the information field contains a HANDOVER TO UTRAN COMMAND message as defined in 3G TS 25.331. In case of  Inter BSC handover a RR HANDOVER COMMAND as defined in TS 04.18.

	3.2.2.24	Layer 3 Information
This is a variable length element used to pass radio interface messages from one network entity to another.
┌─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬────────────┐
│  8     7     6     5     4     3     2     1  │            │
├─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┼────────────┤
│               Element identifier              │ octet 1    │
├───────────────────────────────────────────────┼────────────┤
│               Length                          │ octet 2    │
├───────────────────────────────────────────────┼────────────┤
│               Layer 3 information             │ octet 3 - n│
└───────────────────────────────────────────────┴────────────┘

Octet 1 identifies the element. Octet 2 gives the length of the following layer 3 information.
Octet j (j = 3, 4, ..., n) is the unchanged octet j-2 of a radio interface layer 3 message as defined in GSM 04.18 or in 3G TS 25.331, n-2 is equal to the length of that radio interface layer 3 message.