Section: 6.1.3.3.3a Network initiated PDP Context Modification not accepted by the MS
Content: Upon receipt of a MODIFY PDP CONTEXT REQUEST message, if the MS does not accept the new QoS due to resource reasons or the indicated LLC SAPI, the MS shall initiate the PDP context deactivation procedure for the PDP context - the reject cause IE value of the DEACTIVATE PDP CONTEXT REQUEST message shall indicate "QoS not accepted". The MS may reject the network initiated PDP context modification request by sending a MODIFY PDP CONTEXT REJECT message to the network. The message shall contain a cause code that typically indicates one of the following: # 41: semantic error in the TFT operation; # 42: syntactical error in the TFT operation; # 44: semantic errors in packet filter(s); # 45: syntactical errors in packet filter(s); # 48: request rejected, Bearer Control Mode violation; or # 95 - 111: protocol errors. The MS shall reply with a MODIFY PDP CONTEXT REJECT message with cause "request rejected, Bearer Control Mode violation", if the selected Bearer Control Mode is 'MS only' and the network requests to modify or delete a TFT If a TFT modification was requested and the network requests to modify or delete packet filters which were added by the MS, then the MODIFY PDP CONTEXT REJECT message shall be sent. The TFT in the request message is checked by the MS for different types of TFT IE errors as specified in subclause 6.1.3.3.4. Upon receipt of a MODIFY PDP CONTEXT REJECT message, the network shall stop timer T3386 and enter the state PDP-ACTIVE.