Adding service set identifier or access point name to WLAN to cellular signalling messages
First Claim
1. A method comprising:
- generating an event trigger of requesting location information of a local area network;
transmitting a request for the location information over an interface of a cellular communications network system, based on the event trigger;
in response to receipt of the request, generating a message according to a protocol of the cellular communications network system;
including location information of the local area network, which provides wireless access for a user equipment to a core network of the cellular communications network system, in the message;
communicating the message over an interface according to the protocol of the cellular communications network system;
detecting a location change of the user equipment in the wireless access via the local area network; and
in response to the location change, generating the message containing the location information of the local area network and transmitting the message,wherein the location information comprises location information of an access point corresponding to the local area network, andwherein the location information further comprises fields for local area network specific location information options, and flags for each field to indicate whether or not the location information option is present in the message.
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Accused Products
Abstract
The application relates to the integration of WLAN access networks into cellular communication networks, often referred to as “Non-3GPP Access” in 3GPP standardization, in particular TS 23.402. Location information, such as SSID, WLAN access point name, WLAN access point identifier, WLAN access point MAC address is currently not available for GTP based S2a nor GTP based S2b, and neither for the Gn interface nor for PMIPv6 based S2a. However, Location information is needed in the PGW/GGSN for multiple purposes, e.g. for policy enforcement, charging and lawful interception. This problem is solved by the application in that the missing information is included in a protocol message of the cellular communications system, in particular a GTPv1, GTPv2 or PMIPv6 signalling message, and communicated (S2) to the cellular communications system. Furthermore, an event trigger, similar to event triggers on the Gx interface which may be set by the PCRF, may be set by the PCRF/OCS in the WLAN (S4, S5) to request up-to-date location information (S6, S7, S8).
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Citations
21 Claims
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1. A method comprising:
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generating an event trigger of requesting location information of a local area network; transmitting a request for the location information over an interface of a cellular communications network system, based on the event trigger; in response to receipt of the request, generating a message according to a protocol of the cellular communications network system; including location information of the local area network, which provides wireless access for a user equipment to a core network of the cellular communications network system, in the message; communicating the message over an interface according to the protocol of the cellular communications network system; detecting a location change of the user equipment in the wireless access via the local area network; and in response to the location change, generating the message containing the location information of the local area network and transmitting the message, wherein the location information comprises location information of an access point corresponding to the local area network, and wherein the location information further comprises fields for local area network specific location information options, and flags for each field to indicate whether or not the location information option is present in the message. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 17, 18)
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11. An apparatus configured to:
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generate an event trigger of requesting location information of a local area network; transmit a request for the location information over an interface of a cellular communications network system, based on the event trigger; in response to receipt of the request, generate a message according to a protocol of the cellular communications network system; include location information of the local area network, which provides wireless access for a user equipment to a core network of the cellular communications network system, in the message; communicate the message over an interface according to the protocol of the cellular communications network system; detect a location change of the user equipment in the wireless access via the local area network; and in response to the detection of the location change, generate the message containing the location information of the local area network and transmit the message, wherein the location information comprises location information of an access point corresponding to the local area network, and wherein the location information further comprises fields for local area network specific location information options, and flags for each field to indicate whether or not the location information option is present in the message. - View Dependent Claims (12, 13, 14, 15, 20, 21)
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16. A method comprising:
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generating an event trigger of requesting location information of an access point corresponding to a local area network which provides wireless access for a user equipment to a core network of a cellular communications network system; detecting a location change of a user equipment (UE) based on the event trigger; transmitting a request for the location information over an interface of the cellular communications network system, based on the event trigger, wherein the location information comprises fields for local area network specific location information options, and flags for each field to indicate whether or not the location information option is present in a message indicating the location information.
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19. An apparatus, configured to:
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generate an event trigger of requesting location information of an access point corresponding to a local area network which provides wireless access for a user equipment to a core network of a cellular communications network system; detect a location change of a user equipment (UE) based on the event trigger; transmit a request for the location information over an interface of the cellular communications network system, based on the event trigger, wherein the location information comprises fields for local area network specific location information options, and flags for each field to indicate whether or not the location information option is present in a message indicating the location information.
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Specification