6.3 Rules of association for the attribute values of connection elements and connection types
3GPP43.010GSM Public Land Mobile Network (PLMN) connection typesRelease 17TS
This subclause describes the relationship between the attribute values of connection elements and connection types. For each attribute the various possible values recommended are listed. The definitions of the attributes and attribute values are contained in the annex A. In addition to the (possible) attribute values applicable to the connection elements, an association law is given (where appropriate) for each attribute to show how the value of the attribute for the overall connection type is obtained from the values of the attribute applicable to the connection elements.
6.3.1 Information transfer mode
Attribute values for connection elements:
Circuit.
Attribute values for overall connection type:
Circuit.
Association Law:
Circuit.
6.3.2 Information transfer rate (kbit/s)
Attribute values for connection elements:
3.6 or 6.0 or 12.0 or 13.0 or 14.5 or 29.0 or 32.0 or 43.5 or 64.0
or n 6.0 ( 1 n 4 ) or n 12.0 ( 1 n 6 ) or n x 14.5 ( 1 n 5 ) or 2 x 29.0 or 2 x 32.0
Attribute values for overall connection type:
3.6 or 6.0 or 12.0 or 13.0 or 14.5 29.0 or 32.0 or 43.5 or 64.0;
or n 6.0 ( 1 n 4 ) or n 12.0 ( 1 n 6 ) or n x 14.5 ( 1 n 5 ) or 2 x 29.0 or 2 x 32.0..
Association Law:
The value for the overall connection type will be equal to the lowest value of any of its connection elements.
6.3.3 Information transfer susceptance
Attribute values for connection elements:
Speech processing functions (e.g. PLMN Speech Coding/A Law conversion, Discontinuous Transmission) and/or Echo suppression functions and/or Multiple satellite hops or null.
Attribute values for overall connection types:
Unrestricted Digital Information or Speech.
Association Law:
For an overall connection type to have the value Unrestricted digital no connection element may contain speech processing functions or echo suppression functions. Connection elements containing speech processing devices having the flexibility to change operation between speech and unrestricted digital would on the other hand be allowed to be part of a number of different connection types.
For an overall connection type to have the value speech it must contain PLMN Speech Coding/A Law conversion equipment and echo suppression functions when appropriate.
6.3.4 Establishment of connection
Attribute values for connection elements:
Demand.
Attribute values for overall connection type:
Demand.
Association Law:
If any of the connection elements are Demand, then the overall connection type is Demand.
6.3.5 Symmetry
Attribute values for connection elements:
Bidirectional Symmetric.
Bidirectional Asymmetric (Multislot connections for data).
Attribute values for overall connection type:
Bidirectional Symmetric.
Bidirectional Asymmetric (Multislot connections for data).
Association Law:
The overall symmetry can only be generated from the connection elements by analysis of the connection element values in the context of the architecture of the connection.
6.3.6 Connection configuration Topology
Attribute values for connection elements:
Point-to-point.
Attribute values for the overall connection type:
Not applicable.
Association Law:
Not applicable.
6.3.7 Structure
Attribute values for connection elements:
Unstructured or Service Data Unit Integrity.
Attribute values for the overall connection type:
As per values for connection elements.
Association Law:
Unspecified.
6.3.8 Channels
6.3.8.1 Information channel (rate)
Attribute values for connection elements:
Radio interface connection element: Full rate TCH or Full rate TCHs or Half rate TCH.
A interface connection element: 64.0 kbit/s.
Attribute values for the overall connection type:
Not applicable.
6.3.8.2 Signalling channel (rate)
Attribute values for connection elements:
Radio interface connection element: Dm.
A interface connection element: Common channel signalling system (64.0 kbit/s).
Attribute values for the overall connection type:
Not applicable.
6.3.9 Connection control protocol
Attribute values for connection elements:
Radio interface connection element:
Layer 1: 3GPP TS 44.004 and 3GPP TS 45-series.
Layer 2: 3GPP TS 44.005 and 44.006.
Layer 3: 3GPP TS 24.007 and 24.008, 24.011.
A interface connection element:
Layer 1: 3GPP TS 48.004.
Layer 2: 3GPP TS 48.006.
Layer 3: TS 24.007, 24.008 and 48.008.
Attribute values for the overall connection type:
Not applicable.
6.3.10 Information transfer coding/protocol
Attribute values for connection elements:
Radio interface connection elements:
Layer 1: 3GPP TS 44.021, 3GPP TS 45-series and 46-series.
Layer 2: 3GPP TS 44.006, 24.022 and 3GPP TS 27.002 or 3GPP TS 24.022 and 3GPP TS 27.003 or transparent.
Layer 3: Transparent, 3GPP TS 24.011.
A interface connection element:
Layer 1: 3GPP TS 48.004 and 3GPP TS 48.020.
Layer 2: 3GPP TS 24.022 and 3GPP TS 27.002 or 3GPP TS 24.022 and 3GPP TS 27.003 or transparent.
Layer 3: Transparent.
Attribute values for the overall connection type:
Not applicable.
6.3.11 Further attributes and attribute values
This subclause has outlined the relationships between those attributes values presently existing, the possibility for new values being added remains.
Table 4 summarizes the attributes values for PLMN connection elements.
Table 4: Values for attributes for PLMN connection elements
|
Attributes |
Values for attributes |
|
|
Radio interface connection element |
A interface connection element |
|
|
1 Information Transfer Mode |
Circuit |
Circuit |
|
2 Information Transfer Rate Layer 1 |
3.6 or 6.0 or 12.0 or 13.0 or 14.5 or 29.0 or 32.0 or 43.5 or n 6.0 ( 1 n 4 ) or n 12.0 ( 1 n 6 ) or n x 14.5 ( 1 n 5 ) or 2 x 29.0 or 2 x 32.0 kbit/s |
64.0 kbit/s |
|
3 Information Transfer Susceptance |
Speech processing equipment, Echo suppression equipment, Null |
Speech processing equipment, Echo suppression equipment, Null |
|
4 Establishment of Connection |
Demand |
Demand |
|
5 Symmetry |
Bidirectional symmetric Bidirectional asymmetric |
Bidirectional symmetric Bidirectional asymmetric |
|
6 Connection Configuration Topology |
Point-to-point |
Point-to-point |
|
7 Structure |
Unstructured SDU integrity |
Unstructured SDU integrity |
|
8 Channel Rate Information Channel Signalling Channel |
TCH/F(s) or TCH/H Dm |
64.0 kbit/s Common channel signalling system |
|
9 Connection Control Protocol Layer 1 Layer 2 Layer 3 |
3GPP TS 44.004 and 45 series 3GPP TS 44.005 and 44.006 3GPP TS 24.007, 24.008, 24.011 |
3GPP TS 48.004 3GPP TS 48.006 3GPP TS 24.007, 24.008, 48.008 |
|
10 Information Transfer Coding/Protocol Layer 1 Layer 2 Layer 3 |
3GPP TS 44.021 45 and 46 series 3GPP TS 24.022 and 27.002 or 24.022 and 27.003 44.006 or transparent Transparent, 24.011 |
3GPP TS 48.004 and 48.020 3GPP TS 24.022 and 27.002 or 24.022 and 27.003 or transparent Transparent |