Devices for variable traffic flow templates

摘要

The invention discloses a user terminal (115) for a wireless communications system (100) which is arranged to establish and carry out a communications session with a gateway node (120) in the system (100) according to a first protocol over at least one bearer (110, 140). The user terminal (115) is arranged to provide a predefined issued message to the gateway node (120) during the establishment of a session with an indicator that the user terminal (115) is arranged to handle traffic to and from the gateway node (120) using a predefined version of a defined filter (130).

主权项

1. A user terminal for a wireless communications system, the user terminal being arranged to:
establish a communications session with a gateway node in the wireless communications system according to the Internet Protocol over at least one bearer; provide a Protocol Configuration Option (PCO) field to the gateway node during the establishment of the session, the PCO field including an indicator that indicates that the user terminal is arranged to handle traffic to and from the gateway node using the IPv6 version of a Traffic Flow Template (TFT); receive a response from the gateway node to said indicator in the PCO field;identify an indicator in said response, said indicator indicating that the gateway node can transmit and receive messages according to said version of the TFT; and
format messages the user terminal sends to the gateway node according to the IPv4 version of the TFT in response to determining said indicator in the PCO field is missing.