Devices for variable traffic flow templates
First Claim
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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.
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Abstract
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).
11 Citations
9 Claims
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1. A user terminal for a wireless communications system, the user terminal being arranged to:
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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. - View Dependent Claims (2, 3, 4)
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5. A gateway node for a wireless communications system, the gateway node being arranged to:
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establish a communications session according to the Internet Protocol with a user terminal in the wireless communications system over at least one bearer, the gateway node being equipped with a function for choosng the proper bearer for messages to the user terminal; receive an indicator in a Protocol Configuration Option (PCO) field from the user terminal during the establishment of the session; in response to determining that said indicator in the PCO field is received, use the IPv6 version of a Traffic Flow Template (TFT) when choosing the proper bearer; and format messages the gateway node sends to the user terminal according to the IPv4 version of the TFT in response to determining said indicator in the PCO field is missing. - View Dependent Claims (6, 7, 8, 9)
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Specification