Selecting a network gateway based on a number of bearers supported by the network gateway

1. A method comprising:

receiving, by a mobility management entity (MME) from a wireless device, an indication that the wireless device supports a first number of bearers;

selecting, by the MME, a network gateway from a plurality of network gateways, based on a second number of bearers supported by the network gateway;

sending, by the MME to the network gateway, a request for creating a session for the wireless device; and

receiving, by the MME from the network gateway, a response confirming creation of the session.

2. The method of claim 1 , wherein the receiving the indication comprises receiving an attach request message comprising the indication.

3. The method of claim 1 , wherein the request comprises a create session request message.

4. The method of claim 1 , wherein the response comprises a create session response message.

5. The method of claim 1 , wherein the session is an Internet protocol connectivity access network (IP-CAN) session.

6. The method of claim 1 , further comprising receiving, by the MME from the plurality of network gateways, a plurality of messages.

7. The method of claim 6 , wherein each message of the plurality of messages comprising an information element indicating a capability of a supported number of bearers for each of the plurality of network gateways.

8. The method of claim 1 , wherein at least one of the plurality of network gateways is a serving gateway.

9. A mobility management entity (MME) comprising:

one or more processors; and

memory storing instructions that, when executed by the one or more processors, cause the MME to:

receive, from a wireless device, an indication that the wireless device supports a first number of bearers;

select a network gateway from a plurality of network gateways, based on a second number of bearers supported by the network gateway;

send, to the network gateway, a request for creating a session for the wireless device; and

receive, from the network gateway, a response confirming creation of the session.

10. The MME of claim 9 , wherein the reception of the indication comprises receiving an attach request message comprising the indication.

11. The MME of claim 9 , wherein the request comprises a create session request message.

12. The MME of claim 9 , wherein the response comprises a create session response message.

13. The MME of claim 9 , wherein the session is an Internet protocol connectivity access network (IP-CAN) session.

14. The MME of claim 9 , wherein, wherein the instructions, when executed by the one or more processors, further cause the MME to receive, by the MME from the plurality of network gateways, a plurality of messages.

15. The MME of claim 14 , wherein, wherein each message of the plurality of messages comprising an information element indicating a capability of a supported number of bearers for each of the plurality of network gateways.

16. The MME of claim 9 , wherein, wherein at least one of the plurality of network gateways is a serving gateway.

17. A system comprising:

a plurality of network gateways; and

a mobility management entity (MME) comprising:

one or more processors; and

memory storing instructions that, when executed by the one or more processors, cause the MME to:

receive, from a wireless device, an indication that the wireless device supports a first number of bearers;

select a network gateway from the plurality of network gateways, based on a second number of bearers supported by the network gateway;

send, to the network gateway, a request for creating a session for the wireless device; and

receive, from the network gateway, a response confirming creation of the session.

18. The system of claim 17 , wherein the reception of the indication comprises receiving an attach request message comprising the indication.

19. The system of claim 17 , wherein the request comprises a create session request message.

20. The system of claim 17 , wherein the response comprises a create session response message.