Attachment of a mobile terminal to a radio access network
First Claim
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1. An access node for use in a Radio Access Network, the access node comprising:
- first and second transmitters;
first and second receivers; and
a processing circuit;
wherein when the first receiver receives from a mobile terminal, a request to attach to the Radio Access Network, and the mobile terminal is authenticated, the processing circuit is arranged to perform a validation phase, the validation phase determining whether a radio connection between the mobile terminal and the access node is capable of carrying data, wherein the processing circuit is arranged to;
cause the first transmitter to send a data packet to the mobile terminal;
cause the first receiver to receive a response data packet sent from the mobile terminal;
determine, on the basis of properties of the sent data packet and the response data packet, a property of both an uplink and a downlink radio connection between the mobile terminal and the access node;
cause the second transmitter to send an indication of the property to a selection function node; and
cause the second receiver to receive from the selection function node, a message indicating whether to allow attachment of the mobile terminal to the Radio Access Network;
wherein the Radio Access Network is a Wireless Local Area Network.
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Abstract
A method and apparatus for determining whether to allow attachment of a mobile terminal to a Radio Access Network. A selection function node receives an indication that the mobile terminal has requested to attach to the Radio Access Network. A determination is made of a property of a radio connection on both an uplink and a downlink between the mobile terminal and the RAN. On the basis of the determined property, a further determination is made as to whether to allow attachment of the mobile terminal to the RAN.
18 Citations
3 Claims
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1. An access node for use in a Radio Access Network, the access node comprising:
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first and second transmitters; first and second receivers; and a processing circuit; wherein when the first receiver receives from a mobile terminal, a request to attach to the Radio Access Network, and the mobile terminal is authenticated, the processing circuit is arranged to perform a validation phase, the validation phase determining whether a radio connection between the mobile terminal and the access node is capable of carrying data, wherein the processing circuit is arranged to; cause the first transmitter to send a data packet to the mobile terminal; cause the first receiver to receive a response data packet sent from the mobile terminal; determine, on the basis of properties of the sent data packet and the response data packet, a property of both an uplink and a downlink radio connection between the mobile terminal and the access node; cause the second transmitter to send an indication of the property to a selection function node; and cause the second receiver to receive from the selection function node, a message indicating whether to allow attachment of the mobile terminal to the Radio Access Network; wherein the Radio Access Network is a Wireless Local Area Network.
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2. A mobile terminal for use in a communication network, the mobile terminal comprising:
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a transmitter; a receiver; and a processing circuit; wherein the transmitter is arranged to send to an access node in a Wireless Local Area Network a request to attach to the Wireless Local Area Network; wherein the processing circuit is arranged to participate in a validation phase after the mobile terminal is authenticated, the validation phase determining whether a radio connection between the mobile terminal and the access node is capable of carrying data, wherein the processing circuit is arranged to; cause the receiver to receive a received data packet from the access node; and cause the transmitter to send a response data packet to the access node, the received data packet and the response data packet being usable by a further node to determine a property of both an uplink and a downlink radio connection between the mobile terminal and the access node; the receiver being further arranged to receive from the access node, an indication that the mobile terminal may attach to the Wireless Local Area Network. - View Dependent Claims (3)
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Specification