Small cells implementing multiple air interfaces
View Patent ↗A communication networks including a plurality of small cell providing air interface infrastructure functionality is provided. Aspects of the present disclosure relate to the management of inter-small cell communication in accordance multiple air interfaces supported within individual small cells. Additionally, aspects of the present disclosure relate to the management of intra-small cell communication in accordance with communication networks implementing multiple small cells. In other aspects, small cells coordinate handovers through the use of a controller, or by leveraging wireless connections created between the small cells. In further aspects, the small cells enable the utilization of multiple air interface standards within a small cell.
1. A heterogeneous network comprising:
one or more macro cells, wherein each macro cell is configured to wirelessly communicate with a mobile device in accordance with a longer range air interface standard wherein the longer range air interface standard corresponds to cellular interface standard; and
one or more small cells, wherein each small cell is configured to wirelessly communicate with the mobile device in accordance with the longer range air interface standard and a shorter range air interface standard, wherein the shorter range air interface standard corresponds to a WiFi or a Wireless Local Area Network (WLAN) or an IEEE 802.11 air interface standard, and wherein each of the macro cells and small cells are provided by a base station (BS);
wherein the one or more small cells includes a home agent node and a foreign agent node for the longer range air interface standard and a home agent node and a foreign agent node for the shorter range air interface standard, wherein the home agent node for the longer range air interface standard and the home agent node for the shorter range air interface standard are associated with different network addresses;
wherein communications initiated in accordance with the longer range air interface standard utilize a communication channel between the home agent node for the longer range air interface standard and the foreign agent node for the longer range air interface standard; and
wherein the one or more small cells are configured to implement intra cell handovers by utilizing a communication tunnel between the home agent node of the respective small cell for the longer range interface standard and the foreign agent node of the respective small cell for the shorter range air interface standard.
2. The network as recited in claim 1 , wherein the one or more small cells are configured to implement inter cell handovers between a macro cell and a small cell.
3. The network as recited in claim 1 , wherein the one or more small cells are configured to implement inter cell handovers between different small cells in accordance with the longer range air interface and the shorter range air interface standards.
4. The network as recited in claim 1 , wherein communications initiated in accordance with the shorter range air interface standard utilize a communication channel between the home agent for the shorter range air interface standard and the foreign agent node for the shorter range air interface standard.
5. The network as recited in claim 4 , wherein the one or more small cells are configured to implement intra cell handovers by utilizing a communication tunnel between the home agent of the respective small cell for the shorter range interface standard and the foreign agent node of the respective small cell for the longer range air interface standard.
6. A method for managing communications with user equipment, comprising:
causing, at first node of a cell provided by a base station (BS), communications with a core network, wherein the first node comprises a home agent node associated with a first air interface standard and is associated with a first network address, wherein the first air interface standard corresponds to a cellular interface standard;
causing, at a second node of the cell, establishment of communications with user equipment in accordance with the first air interface standard, wherein the second node comprises a foreign agent node associated with the first air interface standard;
establishing, at the first node of the cell, a first communication tunnel between the first and node comprising the home agent node associated with the first air interface standard and the second node comprising the foreign agent node associated with the first air interface standard, and wherein communications initiated in accordance with the first air interface standard utilize the first communication tunnel;
obtaining, at the first node of the cell, a trigger of an intra cell handover for a handover between nodes within the cell;
causing, at a third node of the cell, establishment of communications with user equipment in accordance with a second air interface standard, wherein the third node comprises a foreign agent node associated with the second air interface standard and the second range air interface standard corresponds to a WiFi or a Wireless Local Area Network (WLAN) or an IEEE 802.11 air interface standard; and
responsive to the trigger of the intra cell handover, enabling communications, at the first node of the cell, utilizing a second communication tunnel between the first node comprising the home agent node associated with the first air interface standard and the third node comprising the foreign agent node associated with the second air interface standard;
wherein communications between the first node of the cell and the core network continue to correspond to the first network address.
7. The method as recited in claim 6 , wherein the cell are further configured to implement handovers associated with communication with the mobile device in accordance solely with the first air interface standard.
8. The method as recited in claim 6 , wherein the first and second communication tunnels correspond to a mobile IP communication tunnel.
9. The method as recited in claim 6 further comprising:
obtaining, at the first node of the cell, a second trigger of an intra cell handover; and
responsive to the second trigger of the intra cell handover, enabling communications, at the first node of the cell, utilizing the first communication tunnel between the first node comprising the home agent node associated with the first air interface standard and the second node comprising the foreign agent node associated with the first air interface standard.
10. An apparatus comprising:
a first radio component configured to facilitate communication in accordance with a first air interface standard, wherein the first air interface standard corresponds to a cellular interface standard;
a home agent node and foreign agent node of a cell provided by a base station (BS) corresponding to the first air interface standard, wherein communications initiated in accordance with the first air interface standard utilize a first communication channel between the home agent node for the first air interface standard and the foreign agent node for the first air interface standard;
a second radio component configured to facilitate communication in accordance with a second air interface standard, wherein the second range air interface standard corresponds to a WiFi or a Wireless Local Area Network (WLAN) or an IEEE 802.11 air interface standard; and
a home agent node and foreign agent node of the cell corresponding to the second air interface standard, wherein the home agent node for the first air interface standard and the home agent node for the second air interface standard are associated with different network addresses;
wherein the apparatus is configured to implement intra cell handovers between nodes of the cell by utilizing a second communication tunnel between at least one of the home agent for the first air interface standard or the home agent for the second air interface standard and an opposite foreign agent node.
11. The apparatus as recited in claim 10 , wherein the apparatus is further configured to implement handovers associated with communication with the mobile device in accordance solely with the first air interface standard.
12. The apparatus as recited in claim 10 further comprising a third radio component configured to communicate in accordance with a third air interface standard.
13. The apparatus as recited in claim 10 , wherein communications initiated in accordance with the first air interface standard are associated with a first network address.
14. The apparatus as recited in claim 13 , wherein communications in accordance with the second air interface standard, responsive to an intra cell handover, are associated with the first network address.
15. The apparatus as recited in claim 10 , wherein communications initiated in accordance with the second air interface standard are associated with a second network address.
16. The apparatus as recited in claim 15 , wherein communications in accordance with the first air interface standard, responsive to an intra handover, are associated with the second network address.
17. The apparatus as recited in claim 10 , wherein the second communication tunnel corresponds to a mobile IP communication tunnel.