Материал: part08

DICOM PS3.8 2020a - Network Communication Support for Message Exchange​

Page 41​

Table 9-1. No Association​

State​

Definition​

Sta 1​

Idle​

Table 9-2. Association Establishment​

State​

Definition​

Sta 2​

Transport connection open (Awaiting A-ASSOCIATE-RQ PDU)​

Sta 3​

Awaiting local A-ASSOCIATE response primitive (from local user)​

Sta 4​

Awaiting transport connection opening to complete (from local transport service)​

Sta 5​

Awaiting A-ASSOCIATE-AC or A-ASSOCIATE-RJ PDU​

Table 9-3. Data Transfer​

State​

Definition​

Sta 6​

Association established and ready for data transfer​

Table 9-4. Association Release​

State​

Definition​

Sta 7​

Awaiting A-RELEASE-RP PDU​

Sta 8​

Awaiting local A-RELEASE response primitive (from local user)​

Sta 9​

Release collision requestor side; awaiting A-RELEASE response (from local user)​

Sta 10​

Release collision acceptor side; awaiting A-RELEASE-RP PDU​

Sta 11​

Release collision requestor side; awaiting A-RELEASE-RP PDU​

Sta 12​

Release collision acceptor side; awaiting A-RELEASE response primitive (from local user)​

Table 9-5. Waiting for Transport Connection Close​

State​

Definition​

Sta 13​

Awaiting Transport Connection Close Indication (Association no longer exists)​

9.2.2 State Machine Actions Definition​

Table 9-6. Association Establishment Related Actions​

Action​

Definition​

AE-1​

Issue TRANSPORT CONNECT request primitive to local transport service​

Next state is Sta4​

AE-2​

Send A-ASSOCIATE-RQ-PDU​

Next state is Sta5​

AE-3​

Issue A-ASSOCIATE confirmation (accept) primitive​

Next state is Sta6​

Page 42​

DICOM PS3.8 2020a - Network Communication Support for Message Exchange​

Action​

Definition​

AE-4​

Issue A-ASSOCIATE confirmation (reject) primitive and close transport connection​

Next state is Sta1​

AE-5​

Issue Transport connection response primitive; start ARTIM timer​

Next state is Sta2​

AE-6​

Stop ARTIM timer and if A-ASSOCIATE-RQ acceptable by service-provider:​

•​issue A-ASSOCIATE indication primitive​

Next state is Sta3​

otherwise:​

•​issue A-ASSOCIATE-RJ-PDU and start ARTIM timer​

Next state is Sta13​

AE-7​

Send A-ASSOCIATE-AC PDU​

Next state is Sta6​

AE-8​

Send A-ASSOCIATE-RJ PDU and start ARTIM timer​

Next state is STA13​

Table 9-7. Data Transfer Related Actions​

State​

Definition​

DT-1​

Send P-DATA-TF PDU​

Next state is Sta6​

DT-2​

Send P-DATA indication primitive​

Next state is Sta6​

Table 9-8. Association Release Related Actions​

Action​

Definition​

AR-1​

Send A-RELEASE-RQ PDU​

Next state is Sta7​

AR-2​

Issue A-RELEASE indication primitive​

Next state is Sta8​

AR-3​

Issue A-RELEASE confirmation primitive, and close transport connection​

Next state is Sta1​

AR-4​

Issue A-RELEASE-RP PDU and start ARTIM timer​

Next state is Sta13​

AR-5​

Stop ARTIM timer​

Next state is Sta1​

AR-6​

Issue P-DATA indication​

Next state is Sta7​

DICOM PS3.8 2020a - Network Communication Support for Message Exchange​

Page 43​

Action​

Definition​

AR-7​

Issue P-DATA-TF PDU​

Next state is Sta8​

AR-8​

Issue A-RELEASE indication (release collision):​

•​if association-requestor, next state is Sta9​

•​if not, next state is Sta10​

AR-9​

Send A-RELEASE-RP PDU​

Next state is Sta11​

AR-10​

Issue A-RELEASE confirmation primitive​

Next state is Sta12​

Table 9-9. Association Abort Related Actions​

Action​

Definition​

AA-1​

Send A-ABORT PDU (service-user source) and start (or restart if already started) ARTIM timer​

Next state is Sta13​

AA-2​

Stop ARTIM timer if running. Close transport connection​

Next state is Sta1​

AA-3​

If (service-user inititated abort):​

•​issue A-ABORT indication and close transport connection​

otherwise (service-provider inititated abort):​

•​issue A-P-ABORT indication and close transport connection​

Next state is Sta1​

AA-4​

Issue A-P-ABORT indication primitive​

Next state is Sta1​

AA-5​

Stop ARTIM timer​

Next state is Sta1​

AA-6​

Ignore PDU​

Next state is Sta13​

AA-7​

Send A-ABORT PDU​

Next state is Sta13​

AA-8​

Send A-ABORT PDU (service-provider source-), issue an A-P-ABORT indication, and start ARTIM​

timer​

Next state is Sta13​

STATES​

No​ Association establishment​

Data​

Association release (normal & collision)​ Wait​

assocn​

transfer​

for Tp​

Close​

EVENTS​

Sta1​ Sta2​ Sta3​ Sta4​Sta5​

Sta6​

Sta7​ Sta8​ Sta9​ Sta10​Sta11​Sta12​Sta13​

A-ASSOCIATE​ AE-1​

Request (local user)​

Sta4​

Transport Conn.​

AE-2​

Confirmn (local​

Sta5​

transport service)​

A-ASSOCIATE-AC​

AA-1​ AA-8​

AE-3​

AA-8​

AA-8​ AA-8​ AA-8​ AA-8​ AA-8​ AA-8​ AA-6​

PDU (received on​

Sta13​ Sta13​

Sta6​ Sta13​ Sta13​ Sta13​ Sta13​Sta13​Sta13​Sta13​ Sta13​

transport​

connection)​

A-ASSOCIATE-RJ​

AA-1​ AA-8​

AE-4​

AA-8​

AA-8​ AA-8​ AA-8​ AA-8​ AA-8​ AA-8​ AA-6​

PDU (received on​

Sta13​ Sta13​

Sta1​ Sta13​ Sta13​ Sta13​ Sta13​Sta13​Sta13​Sta13​ Sta13​

transport​

connection)​

Transport​

AE-5​

Connection​

Sta2​

Indication (local​

transport service)​

A-ASSOCIATE-RQ​

AE-6​ AA-8​

AA-8​

AA-8​

AA-8​ AA-8​ AA-8​ AA-8​ AA-8​ AA-8​ AA-7​

PDU (received on​

Sta3 or​Sta13​

Sta13​ Sta13​ Sta13​ Sta13​ Sta13​Sta13​Sta13​Sta13​ Sta13​

transport​

connection)​

13​

A-ASSOCIATE​

AE-7​

response primitive​

Sta6​

(accept)​

A-ASSOCIATE​

AE-8​

response primitive​

Sta13​

(reject)​

P-DATA request​

DT-1​

AR-7​

primitive​

Sta6​

Sta8​

P-DATA-TF PDU​

AA-1​ AA-8​

AA-8​ DT-2​ AR-6​ AA-8​ AA-8​ AA-8​ AA-8​ AA-8​ AA-6​

Sta13​ Sta13​

Sta13​ Sta6​

Sta7​ Sta13​ Sta13​Sta13​Sta13​Sta13​ Sta13​

A-RELEASE​

AR-1​

Request primitive​

Sta7​

A-RELEASE-RQ​

AA-1​ AA-8​

AA-8​ AR-2​ AR-8​ AA-8​ AA-8​ AA-8​ AA-8​ AA-8​ AA-6​

PDU (received on​

Sta13​ Sta13​

Sta13​ Sta8​ Sta9 or​Sta13​ Sta13​Sta13​Sta13​Sta13​ Sta13​

open transport​

connection)​

10​

A-RELEASE-RP​

AA-1​ AA-8​

AA-8​ AA-8​

AR-3​ AA-8​ AA-8​ AR-10​AR-3​ AA-8​ AA-6​

PDU (received on​

Sta13​ Sta13​

Sta13​ Sta13​ Sta1​ Sta13​ Sta13​Sta12​ Sta1​ Sta13​ Sta13​

transport​

connection)​

A-RELEASE​

AR-4​ AR-9​

AR-4​

Response primitive​

Sta13​ Sta11​

Sta13​

DICOM PS3.8 2020a - Network Communication Support for Message Exchange​

Page 45​

STATES​

No​ Association establishment​

Data​

Association release (normal & collision)​

Wait​

assocn​

transfer​

for Tp​

Close​

EVENTS​

Sta1​ Sta2​ Sta3​ Sta4​Sta5​

Sta6​

Sta7​ Sta8​

Sta9​ Sta10​Sta11​Sta12​Sta13​

A-ABORT Request​

AA-1​AA-2​AA-1​

AA-1​

AA-1​ AA-1​

AA-1​ AA-1​ AA-1​ AA-1​

primitive​

Sta13​Sta1​Sta13​ Sta13​ Sta13​ Sta13​ Sta13​Sta13​Sta13​Sta13​

A-ABORT PDU​

AA-2​ AA-3​

AA-3​ AA-3​

AA-3​ AA-3​ AA-3​ AA-3​ AA-3​ AA-3​ AA-2​

(received on open​

Sta1​ Sta1​

Sta1​

Sta1​

Sta1​ Sta1​

Sta1​ Sta1​ Sta1​ Sta1​

Sta1​

transport​

connection)​

Transport​

AA-5​ AA-4​AA-4​AA-4​

AA-4​

AA-4​ AA-4​

AA-4​ AA-4​ AA-4​ AA-4​ AR-5​

connection closed​

Sta1​ Sta1​ Sta1​Sta1​

Sta1​

Sta1​ Sta1​

Sta1​ Sta1​ Sta1​ Sta1​

Sta1​

indication (local​

transport service)​

ARTIMtimerexpired​

AA-2​

AA-2​

(Association​

Sta1​

Sta1​

reject/release timer)​

Unrecognized or​

AA-1​ AA-8​

AA-8​

AA-8​

AA-8​ AA-8​

AA-8​ AA-8​ AA-8​ AA-8​ AA-7​

invalidPDUreceived​

Sta13​ Sta13​

Sta13​ Sta13​ Sta13​ Sta13​ Sta13​Sta13​Sta13​Sta13​ Sta13​