Network congestion control
A wireless device receives, from a network node of a first network via a packet data unit (PDU) session of a second network, a congestion notification of the first network. The wireless device sends, to the second network, the congestion notification of the first network.
1 . A method comprising:
receiving, by a wireless device from a network node of a first network via a packet data unit (PDU) session of a second network, a congestion notification of the first network; and
sending, by the wireless device to the second network, the congestion notification of the first network.
2 . The method of claim 1 , wherein the first network comprises an overlay network and the second network comprises an underlay network.
3 . The method of claim 1 , wherein the wireless device receives the congestion notification from the network node in a first message, the first message further comprising a backoff timer parameter for an access type associated with access to the first network via the second network.
4 . The method of claim 3 , wherein the wireless device sends the congestion notification to the second network in a second message, the second message further comprising the backoff timer parameter for the access type associated with access to the first network via the second network.
5 . The method of claim 4 , further comprising sending, by the wireless device upon expiry of a back-off timer associated with the backoff timer parameter, a second radio resource control (RRC) message to the second network, wherein the second RRC message comprises at least one of:
an RRC resume request message; or
an RRC setup request message.
6 . The method of claim 2 , further comprising receiving, by the wireless device from the underlay network, a first radio resource control (RRC) message comprising a configuration parameter based on the congestion notification.
7 . The method of claim 6 , wherein the configuration parameter comprises a suspend configuration.
8 . A wireless device comprising one or more processors and memory storing instructions that, when executed by the one or more processors, cause the wireless device to:
receive, from a network node of a first network via a packet data unit (PDU) session of a second network, a congestion notification of the first network; and
send, to the second network, the congestion notification of the first network.
9 . The wireless device of claim 8 , wherein the first network comprises an overlay network and the second network comprises an underlay network.
10 . The wireless device of claim 8 , wherein the instructions further cause the wireless device to receive the congestion notification from the network node in a first message, the first message further comprising a backoff timer parameter for an access type associated with access to the first network via the second network.
11 . The wireless device of claim 10 , wherein the instructions further cause the wireless device to send the congestion notification to the second network in a second message, the second message further comprising the backoff timer parameter for the access type associated with access to the first network via the second network.
12 . The wireless device of claim 11 , wherein the instructions further cause the wireless device to send, upon expiry of a back-off timer associated with the backoff timer parameter, a second radio resource control (RRC) message to the second network, wherein the second RRC message comprises at least one of:
an RRC resume request message; or
an RRC setup request message.
13 . The wireless device of claim 9 , wherein the instructions further cause the wireless device to receive, from the underlay network, a first radio resource control (RRC) message comprising a configuration parameter based on the congestion notification.
14 . The wireless device of claim 13 , wherein the configuration parameter comprises a suspend configuration.
15 . A non-transitory computer-readable medium comprising instructions that, when executed by one or more processors of a wireless device, cause the wireless device to:
receive, from a network node of a first network via a packet data unit (PDU) session of a second network, a congestion notification of the first network; and
send, to the second network, the congestion notification of the first network.
16 . The non-transitory computer-readable medium of claim 15 , wherein the first network comprises an overlay network and the second network comprises an underlay network.
17 . The non-transitory computer-readable medium of claim 15 , wherein the instructions further cause the wireless device to receive the congestion notification from the network node in a first message, the first message further comprising a backoff timer parameter for an access type associated with access to the first network via the second network.
18 . The non-transitory computer-readable medium of claim 17 , wherein the instructions further cause the wireless device to send the congestion notification to the second network in a second message, the second message further comprising the backoff timer parameter for the access type associated with access to the first network via the second network.
19 . The non-transitory computer-readable medium of claim 18 , wherein the instructions further cause the wireless device to send, upon expiry of a back-off timer associated with the backoff timer parameter, a second radio resource control (RRC) message to the second network, wherein the second RRC message comprises at least one of:
an RRC resume request message; or
an RRC setup request message.
20 . The non-transitory computer-readable medium of claim 16 , wherein the instructions further cause the wireless device to receive, from the underlay network, a first radio resource control (RRC) message comprising a configuration parameter based on the congestion notification.