Section: 8.3.2 Session Management
Content: The mobile station and network shall ignore a session management message with TI EXT bit = 0. Otherwise, the following procedures shall apply: a) Whenever any session management message except ACTIVATE PDP CONTEXT REQUEST, ACTIVATE SECONDARY PDP CONTEXT REQUEST, or SM-STATUS is received by the network specifying a transaction identifier which is not recognized as relating to an active PDP context or MBMS context,or to a PDP context or MBMS context that is in the process of activation or deactivation, the network shall send a SM-STATUS message with cause #81 "invalid transaction identifier value" using the received transaction identifier value including the extension octet and remain in the PDP-INACTIVE state. b) Whenever any session management message except REQUEST PDP CONTEXT ACTIVATION, REQUEST SECONDARY PDP CONTEXT ACTIVATION, REQUEST MBMS CONTEXT ACTIVATION, or SM-STATUS is received by the MS specifying a transaction identifier which is not recognized as relating to an active context or to a context that is in the process of activation or deactivation, the MS shall send a SM-STATUS message with cause #81 "invalid transaction identifier value" using the received transaction identifier value including the extension octet and remain in the PDP-INACTIVE state. c) When a REQUEST PDP CONTEXT ACTIVATION message, REQUEST SECONDARY PDP CONTEXT ACTIVATION message or REQUEST MBMS CONTEXT ACTIVATION message is received by the MS with a transaction identifier flag set to "1", this message shall be ignored. d) When an ACTIVATE PDP CONTEXT REQUEST message is received by the network specifying a transaction identifier which is not recognized as relating to a PDP context that is in the process of activation, and with a transaction identifier flag set to "1", this message shall be ignored. e) Whenever an ACTIVATE PDP CONTEXT REQUEST or ACTIVATE SECONDARY PDP CONTEXT REQUEST message is received by the network specifying a transaction identifier relating to a PDP context or MBMS context not in state PDP-INACTIVE, the network shall deactivate the old PDP context or MBMS context relating to the received transaction identifier without notifying the MS. Furthermore, the network shall continue with the activation procedure of a new PDP context as indicated in the received message. Whenever an ACTIVATE MBMS CONTEXT REQUEST message is received by the network specifying a transaction identifier relating to an MBMS context not in state PDP-INACTIVE, the network shall deactivate the old MBMS context relating to the received transaction identifier without notifying the MS. Furthermore, the network shall continue with the activation procedure of a new MBMS context as indicated in the received message. f) Whenever a REQUEST PDP CONTEXT ACTIVATION message or REQUEST SECONDARY PDP CONTEXT ACTIVATION message is received by the MS specifying a transaction identifier relating to a PDP context or MBMS context not in state PDP-INACTIVE, the MS shall locally deactivate the old PDP context or MBMS context relating to the received transaction identifier. Furthermore, the MS shall continue with the activation procedure of a new PDP context as indicated in the received message. Whenever a REQUEST MBMS CONTEXT ACTIVATION message is received by the MS specifying a transaction identifier relating to a PDP context or MBMS context not in state PDP-INACTIVE, the MS shall locally deactivate the old PDP context or MBMS context relating to the received transaction identifier. Furthermore, the MS shall continue with the activation procedure of a new MBMS context as indicated in the received message. g) When an ACTIVATE SECONDARY PDP CONTEXT REQUEST message is received by the network specifying a transaction identifier which is not recognized as relating to a PDP context that is in the process of activation and with a transaction identifier flag set to "1", this message shall be ignored.