Automatically resetting interrupted network connections
Systems, devices, and techniques described herein relate to automatically resetting interrupted connections associated with a core network and/or an Internet Protocol (IP) Multimedia Subsystem (IMS) network, in order to successfully establish a dedicated tunnel through the core network and the IMS network. An example method includes transmitting, to the core network, a first request for services associated with a minimum Quality of Service (QoS) level and determining that a wait time has expired without having received a response confirming that a dedicated tunnel corresponding to the QoS level has been established. Next, the method can include transmitting, to the core network, a second request to reset a connection associated with the core network and the IMS network.
1. A method performed by a User Equipment (UE), comprising:
transmitting, to a core network, a request for voice services from the core network and an Internet Protocol (IP) Media Subsystem (IMS) network;
determining that a wait time has expired without having received a first response confirming that a first dedicated bearer through the core network and the IMS network has been established for the voice services;
in response to determining that the first wait time has expired, transmitting, to the core network, a request to reset at least one connection associated with the core network and the IMS network, wherein transmitting the request to reset causes the core network to reset at least one of a Gx interface, an Rx interface, or an SGi interface;
receiving, from the core network within a second wait time, a second response confirming that a second dedicated bearer through the core network and the IMS network has been established for the voice services; and
receiving the voice services from the core network and the IMS network via the dedicated tunnel.
2. The method of claim 1 , wherein the request to reset the at least one connection causes the core network to perform an IMS registration process.
3. The method of claim 1 , wherein the request for the voice services is a first request for the voice services,
wherein the method further comprises transmitting, to the core network, a second request for the voice services, and
wherein receiving the voice services is in response to transmitting the second request for the voice services.
4. The method of claim 1 , wherein the at least one of the first wait time or the second wait time is between 5 seconds to 30 seconds.
5. A method, comprising:
transmitting, to a core network, a first request for services associated with a minimum Quality of Service (QoS) level;
determining a wait time has expired without having received a response confirming that a 5th Generation (5G) QoS Indicator (5QI) data flow corresponding to the QoS level has been established; and
transmitting, to the core network, a second request to reset a connection associated with the core network and an Internet Protocol (IP) Multimedia Subsystem (IMS) network,
wherein transmitting the second request causes the core network to reset at least one of a Gx interface, an Rx interface, or an SGi interface.
6. The method of claim 5 , wherein the first request is a Session Initiation Protocol (SIP) INVITE message.
7. The method of claim 5 , wherein the services comprise Guaranteed Bit Rate (GBR) services.
8. The method of claim 5 , wherein the wait time begins in response to transmitting the first request.
9. The method of claim 5 , wherein the wait time is between 5 seconds to 30 seconds.
10. The method of claim 5 , wherein the minimum QoS level comprises at least one of a priority of the services, a maximum packet delay budget of the services, or a maximum packet error loss rate of the services.
11. The method of claim 5 , wherein the core network is a 5th Generation (5G) core network.
12. The method of claim 5 , wherein transmitting the first request comprises initiating a session,
wherein the method further comprises determining the session has ended, and
wherein the second request is automatically transmitted in response to determining that the session has ended.
13. A device, comprising:
at least one processor; and
memory storing instructions that, when executed by the at least one processor, cause the at least one processor to perform operations comprising:
transmitting, to a core network, a first request for services associated with a minimum Quality of Service (QoS) level, wherein transmitting the first request comprises initiating a session;
determining a wait time has expired without having received a response confirming that a 5th Generation (5G) QoS Indicator (5QI) data flow corresponding to the QoS level has been established;
determining the session has ended; and
transmitting, to the core network, a second request to reset a connection associated with the core network and an Internet Protocol (IP) Multimedia Subsystem (IMS) network, wherein the second request is automatically transmitted in response to determining that the session has ended.
14. The device of claim 13 , wherein the services comprise Guaranteed Bit Rate (GBR) services.
15. The device of claim 13 , wherein the wait time is between 5 seconds to 30 seconds.
16. The device of claim 13 , wherein the minimum QoS level comprises at least one of a priority of the services, a maximum packet delay budget of the services, or a maximum packet error loss rate of the services.
17. The device of claim 13 , wherein the core network is a 5G core network.
18. The device of claim 13 , wherein transmitting the second request causes the core network to reset at least one of a Gx interface, an Rx interface, or an SGi interface.