1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS X 4306 KS X 4306:2008 2008 11 28 http:/www.kats.go.krKS X 4306:2008 : ( ) ( ) () ()SJ ( ) : (http:/www.standard.go.kr) ： ：1998 12 31 ：2008 11 28 2008-0807 ： ： ( 02-509-7262) (http:/www.kats.go.kr). 10 5 , . KS X 4306:2008 Information technology Telecommun
2、ications and information exchange between systems Private Integrated Services NetworkCircuit-mode multi-rate bearer services Service description, functional capabilities and information flows 1996 1 ISO/IEC 11584, Information technology Telecommunications and information exchange between systems Pri
3、vate Integrated Services Network Circuit-mode multi-rate bearer services Service description, functional capabilities and information flows , , 5. . 1 1 . 1 , 2 3 . 3 PISN 3 . 8 kHz . , (N64 kbit/s) , . 2 3 PISN . 3 . . ( ) . KS X 4304, 64 kbit/s KS X 4306:2008 2 , ISO/IEC 11574： 1994, Information t
4、echnology Telecommunications and information exchange berween systems Private Integrated Services Network Circuit-mode 64 kbit/s bearer services Service description, functional capabilities and information flow . KS X 4309 1, 1： ISO/IEC 11579 1： 1994, Information Technology Telecommunications and in
5、formation exchange between systems Private Integrated Services Network Part 1： Reference configuration for PISN Exchanges(PINX) . CCITT Rec.I.112： 1988, Vocabulary of terms for ISDNs(Blue Book) CCITT Rec.I.140： 1988, Attribute technique for the characterization of telecommunication services supporte
6、d by an ISDN and network capabilities of an ISDN(Blue Book) CCITT Rec.I.210： 1988, Principles of telecommunication services supported by an ISDN and the means to describe them(Blue Book) CCITT Rec.I.230： 1988, Definition of bearer service categories(Blue Book) CCITT Rec.I.231： 1988, Circuit-mode bea
7、rer service categories(Blue Book) CCITT Rec.I.412： 1988, ISDN user-network interfaces interface structure and access capabilities(Blue Book) 4 . 4.1 . (access channel and rate) (access protocol) (basic service) B (B channel) (bearer service) (call) ( )channel(rate) (communication configuration) / (c
8、ontinuous/non-continuous) (establishment of connection) ( / / )information transfer(mode/rate/capability) ( )point-to-point (services) (PISN) (service) (signalling) (structure) (supplementary service) (symmetry) ( )unrestricted(digital information) (user) 4.2 KS X 4306:2008 3 n B n B 2 1 5 8 kHz PIS
9、N . 64 kbit/s , . 2 , . 6 PISN PISN . , , , / . 7 PISN ISDN ISDN . 8 . 3 , 2 . KS X 4304 . INTERNATIONAL STANDARD ISO/IEC 11584 First edition 1996-03-01 Information technology - Telecommunications and information exchange between systems - Private Integrated Services Network - Circuit-mode multi-rat
10、e bearer services - Service description, functional capabilities and information flows Technologies de Iinforma tion dinformation entre systgmes - T 2) Information transfer rate: 128, 192, . I 920 kbiffs (Note 1); 3) Information transfer capability: Unrestricted digital information; 4) Structure: Ti
11、me slot sequence integrity. Note - The support of individual transfer rates is an implementation option. 53.2 Secondary information transfer attributes The secondary Information transfer attribute possibilities for this service are: 5) Establishment of communication: Demand (Notel); 6) Symmetry: Bid
12、irectional symmetric (Note 2); 7) Communication configuration: Point-to-point (Note 3). 0 ISO/IEC ISO/IEC 11584: 1996(E) Notes 1. Only demand services are specified in this International Standard. 2. Only bidirectional symmetric services are specified in this International Standard. 3. Only point-to
13、-point services are specified in this International Standard. Multi-point configurations can be achieved using conference call supplementary services. 5.3.3 Access attributes 8) Access channel: two or more B-channels 9) Access protocol: Not defined. Note - The access attributes refer only to the use
14、r information not the signalling information. 6 Procedures for multi-rate bearer service within a PISN The procedures of this clause shall apply when the users concerned are users of a PISN. 61 . Provision of services As a PISN option, multi-rate bearer service available in a PISN can be generally a
15、vailable, or can be available by specific arrangement for an individual PISN user. These services can be offered with an option. An example is: PISN option Assignment of time-slots Value - Contiguous - Non-contiguous Note - This option is applied for both the calling and the called user side. 62 . N
16、ormal procedures 6.2.1 Call establishment at the calling user The call is originated by the PISN user requesting this service. With the request, the originating user supplies Destination number identifying the called PISN user, the information transfer rate needed (e.g. 128, 192, ) which will remain
17、 the same for the whole duration of the call. Other information as required, (e.g. Originating Number) may also be included. This request may be given to the network either en bloc, containing all the required information, or not en bloc (i.e. in overlap sending). The assignment of nx64 kbit/s chann
18、els at an access has a local meaning only. In particular, contiguous channel assignment at one interface does not mean that channels will be assigned contiguously within the network or at the terminating interface. The B-channels selected shall belong to a single interface. 5 ISO/IEC 11584:1996(E) 0
19、 ISOhEC After initiating a call, the calling user will receive an indication that the network is processing the request; an indication when the called user has been informed of the.call and an indication when the connection has been established. 6.2.2 Call establishment at the called user The called
20、 user will receive an indication of the arrival of a call for this bearer service, including the information transfer rate and will inform the network of the acceptance or rejection of the call. The assignment of nx64 kbit/s channels at an access has a local meaning only. In particular, contiguous c
21、hannel assignment at one interface does not mean that channels will be assigned contiguously within the network or at the originating interface. The B-channels selected shall belong to a single interface. The called user may also provide other information for use by the network to other users (e.g.
22、connected line identity). 6.2.3 Connection Once the connection is established between the calling and called users, the allocated time slot(s)/channel(s) is/are available for the transmission in both directions continuously and simultaneously at the information transfer rate specified at call set-up
23、 until the call is terminated. 6.2.4 Terminating the call service (call release) A call may be terminated by either or both users indicating this to the network.If one user or both users terminate the call, network will send an appropriate indication to the other user. 63 . Exceptional procedures/un
24、successful outcome The exceptional procedures handle the following conditions: a) Failure situations due to user error l)A user inputting a network-identifiable, improper service request will be given an appropriate failure indication by the network and the call set-up will be ceased. 2)A user input
25、ting a non-valid network number will be given an appropriate failure indication by the network and the call set-up will be ceased. b) Failure situations due to called user state 1) A calling user attempting to establish a call to a user who is identified by the network to be busy (e.g. insufficient
26、B-channel available) will be given an appropriate failure indication by the network. 2) A user attempting to establish a call to a user whose term inal equipment fails to respond will be an appropriate failure indication by the network and the call set-up will be ceased. given 3) On a call to a user
27、 whose terminal equipment has responded that the called user is being informed of the call but has failed to answer within a defined period of time, the calling user attempting to establish the call will be given an appropriate failure indication by the network and the call set-up will be ceased. 6
28、0 ISO/IEC ISO/IEC 11584:1996(E) 4) On a call to a user whose access cannot support the specified information transfer rate ( e.g. it exceeds the subscription option for the maximum number of information channels available at user B), the calling user attempting to establish the call will be given an
29、 appropriate failure indication by the network and the call set-up will be ceased. c) Failure situations due to network conditions 1) A user attempting to establish a call but meeting call failure situations due to network conditions (e.g. congestion) will be given an appropriate failure indication
30、by the network. 2) The inability of the network to guarantee time-slot sequence integrity will result in a failure indication by the network. d) Failure situations due to called user state and/or network conditions A user attempting to establish a call but meeting call failure situations due to netw
31、ork conditions (e.g. congestion) or called user state (e.g. busy) can have service data retained for a specified period of time. e) Exceptional procedures for dealing with the situation in which the network or the user cannot continue to support the information transfer rate requested at call set-up
32、 are outside the scope of this standard. 7 Interworking 71 . Interworking requirements Interworking is required between the PISN and ISDN or non-ISDN network offering this service. This service will interwork with the following bearer services. Multi-rate bearer service Bearer service 128 kbit/s (n=
33、 2) 2x64 kbit/s unrestricted - see CCITT Rec. I.2315 (Note) 384 kbit/s (n= 6) 384 kbit/s unrestricted - see CCITT Rec. 1.231.6 1536 kbit/s (n=24) 1536 kbit/s unrestricted - see CCITT Rec. 1.231.7 1920 kbit/s (n=30) 1920 kbit/s unrestricted - see CCllT Rec. 1.231.8 This interworking may require mappi
34、ng of the (non) contiguous channels used for the multi-rate bearer service onto contiguous information channels in order to offer the call to the destination user. Note - lntennrorking in this case is allowable only in the direction from the multi-rate bearer service to the 2x64 kbit/s bearer servic
35、e due to differential time delay requirement. 7.2 Interactions with supplementary services Not applicable. Each supplementary service description identifies the applicability to this bearer service ISO/IEC 11584:1996(E) 0 ISO/IEC 8 Dynamic Description The dynamic description of this sewice on a dema
36、nd basis is given in ISOIIEC 11574 with Figure 1 of this International Standard replacing sheet 1 of Figure 3 of ISOAEC 11574. 8 ISOAEC ISOhEC 11584:1996(E) Number Complete Destination to destination Y(NOTE) (7) p-) INFORMATION- NOTE - The requested value of “n” is greater than the value of called u
37、sers subscription option for the maximum number of information channels available at called user. Figure 1 ISOIIEC 11584:1996(E) 0 ISO/IEC Section 3: Functional Capabilities and Information Flows, Stage 2 The stage 2 description, Functional Capabilities and Information Flows for multi-rate bearer se
38、rvice, is identical to the contents of ISO/IEC 11574 except for the following items. 1. Inband-tones and announcements are not applied to the multi-rate bearer service. 2 . The following table is to be added to table 2 of ISOAEC 11574. Table 2a) - Additional connection types for Multi-Rate bearer se
39、rvice si Connect ion Type -0 - Circuit Mode Bearer: Low layer Multi-rate compatibility -0 unrestricted 4 information transfer capacity: multiples of 64kbit/s unrestricted -m High layer compatibility -0 Low layer compatibility -0 Information transfer mode: (ci rcui t -m Information transfer rate: (mu
40、1 t iple of 64kbi t/s -m Establ ishment (note 2) -0 S-try (note 2) -0 Configuration (note 2) -0 Low layer information layer 1 info -0 layer 2 info -0 layer 3 info -0 10 This page intentionally left blank lSO/IEC 11584:1996(E) 0 lSO/IEC ICS 35.120 Descriptors: data proce ssing, information nterchange
41、, telecommunicati private network, ISDN, services, network service, con trol procedures. ons, network interconnection, open systems interconnection, Price based on 10 pages 135513 7017 (02)60094114 (02)600948878 http:/ Korean Agency for Technology and Standards http:/www.kats.go.kr KS X 4306:2008 KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Information technologyTelecommunications and information exchange between systemsPrivate Integrated Services NetworkCircuit-mode multi-rate bearer servicesService description, functional capabilities and information flows ICS 35.120
