Unifying virtualizations in a core network and a wireless access network
View Patent ↗To unify virtualizations in a core network and a wireless access network, a virtual wireless network is mapped to a virtual network in the core network. Based on the mapping, data associated with a communications session can be communicated through the virtual wireless network and core virtual network.
1. A method of unifying virtualizations in a core network and a wireless access network, comprising:
providing a plurality of virtual wireless networks provided by corresponding virtual access points in the wireless access network;
providing a plurality of virtual networks in the core network; and
mapping a service set identifier (SSID) of a particular one of the plurality of virtual wireless networks to a service instance identifier (ISID) of a particular one of the plurality of virtual networks, where the mapping uses a data structure that contains the SSID and the ISID, the data structure correlating the SSID to the ISID;
using the mapping to communicate data associated with a communications session involving a mobile station and another endpoint through the particular virtual wireless network and the particular virtual network;
detecting transfer of the mobile station from a first physical access point to a second physical access point in the wireless access network; and
maintaining the mapping between the SSID and the ISID in the data structure in response to the transfer.
2. The method of claim 1 , wherein the mapping enables mapping of the particular virtual wireless network to a virtual routing domain of the core network, wherein the virtual routing domain is separate from another virtual routing domain of the core network.
3. The method of claim 1 , wherein providing the plurality of virtual wireless networks in the wireless access network comprises providing the plurality of virtual wireless networks in a WiFi network.
4. The method of claim 3 , wherein providing the plurality of virtual networks in the core network comprises providing the plurality of virtual networks in the core network implemented with one or both of PBT (provider backbone transport) and PLSB (provider link state bridging) technologies.
5. The method of claim 1 , wherein multiple virtual access points of the virtual access points are provided by a physical access point.
6. The method of claim 1 , wherein mapping the SSID of the particular virtual wireless network to the ISID of the particular virtual network in the core network enables provision of an end-to-end service level agreement.
7. The method of claim 1 , further comprising:
integrating multiple wireless access networks each having virtual wireless networks; and
mapping between the virtual wireless networks of the integrated wireless access networks and the virtual networks of the core network.
8. The method of claim 1 , wherein the data structure includes additional identifiers of corresponding ones of the plurality of virtual wireless networks correlated to additional identifiers of corresponding ones of the plurality of virtual networks.
9. The method of claim 8 , wherein the data structure is a table.
10. A network node for use with a communications network that includes a wireless access network and a core network, comprising:
an interface to receive a packet from a mobile station; and
a processor to:
determine a service set identifier (SSID) of a virtual wireless network provided by a virtual access point in the wireless access network that the mobile station is attached to;
map, using a data structure, the SSID to a service instance identifier (ISID) of a virtual network in the core network, where the data structure contains the SSID and the ISID, the data structure correlating the SSID to the ISID;
send the packet to the core network after the mapping;
detect transfer of the mobile station from a first physical access point to a second physical access point in the wireless access network; and
maintain the mapping between the SSID and the ISID after the transfer.
11. The network node of claim 10 , comprising a physical wireless access point that implements the virtual access point and another virtual access point.
12. The network node of claim 10 , wherein the data structure includes additional identifiers of corresponding virtual wireless networks correlated to additional identifiers of corresponding virtual networks.
13. An article comprising at least one non-transitory computer-readable storage medium containing instructions that when executed cause a network node to:
determine a service set identifier (SSID) of a virtual wireless network provided by a virtual access point in a wireless access network that a mobile station is attached to;
map, using a data structure, the SSID to a service instance identifier (ISID) of a virtual network in a core network, where the data structure contains the SSID and the ISID, the data structure correlating the SSID to the ISID;
send a packet from the mobile station to the core network after the mapping;
detect transfer of the mobile station from a first physical access point to a second physical access point in the wireless access network; and
maintain the mapping between the SSID and the ISID in the data structure in response to the transfer.
14. The article of claim 13 , wherein the instructions when executed cause the network node to further:
map, using the data structure, another identifier of another virtual wireless network provided by another virtual access point in the wireless access network to another identifier of another virtual network in the core network, where the data structure contains the another identifier of the another virtual wireless network and the another identifier of the another virtual network.
15. The article of claim 13 , wherein the virtual access point and at least another virtual access point are implemented on a physical access point.