HANDLING SERVICES DURING DEVICE BACKOFF
An example method to handle services during device backoff involves maintaining a device backed off from a packet-switched domain. When the device is backed off from the packet-switched domain, a request is sent to attach the device to an access network in a circuit-switched domain. A packet-switched backoff status of the device is sent with the request. The packet-switched backoff status indicates that the device is backed off from the packet-switched domain.
1 . A method to handle services during device backoff, comprising:
maintaining a device backed off from a packet-switched domain;
when the device is backed off from the packet-switched domain, sending a request to attach the device to an access network in a circuit-switched domain; and
sending a packet-switched backoff status of the device with the request, the packet-switched backoff status indicating that the device is backed off from the packet-switched domain.
2 . A method as defined in claim 1 , further comprising sending a packet-switched backoff timer value of the device with the request, the packet-switched backoff timer value indicating an amount of time remaining until the device is no longer backed off from the packet-switched domain.
3 . A method as defined in claim 1 , further comprising sending a pending circuit-switched services status of the device with the request, the pending circuit-switched services status indicating circuit-switched services to be used by the device.
4 . A method as defined in claim 3 , further comprising sending a packet-switched backoff timer value of the device with the request and the pending circuit-switched services status, the packet-switched backoff timer value indicating an amount of time remaining until the device is no longer backed off from the packet-switched domain.
5 . A method as defined in claim 3 , further comprising receiving a re-direct message from the circuit-switched domain after using the circuit-switched services in the circuit-switched domain, and re-selecting to attach the device to the packet-switched domain based on the re-direct message.
6 . A method as defined in claim 1 , further comprising, after performing a location area update:
sending a request to register with the packet-switched domain; and
sending a tracking area update request and an update-explanatory indication, the update-explanatory indication providing a reason for the tracking area update request.
7 . A method as defined in claim 1 , further comprising sending a routing area update request, a packet-switched backoff status of the device, and a packet-switched backoff timer status of the device to a serving general packet radio service support node, the packet-switched backoff status indicating that the device is backed off from the packet-switched domain, and the packet-switched backoff timer status indicating that a packet-switched backoff timer for the device is active.
8 . A method to handle services during device backoff, comprising:
receiving, at a device, a packet-switched backoff timer value, and restricted circuit-switched domain services information from a packet-switched domain; and
when the device is backed off from the packet-switched domain, refraining from re-selecting to attach the device to the circuit-switched domain based on the circuit-switched domain services information.
9 . An apparatus to handle services during device backoff, comprising:
a processor configured to:
maintain a device backed off from a packet-switched domain;
when the device is backed off from the packet-switched domain, send a request to attach the device to an access network in a circuit-switched domain; and
send a packet-switched backoff status of the device with the request, the packet-switched backoff status indicating that the device is backed off from the packet-switched domain.
10 . An apparatus as defined in claim 9 , wherein the processor is further configured to send a packet-switched backoff timer value of the device with the request, the packet-switched backoff timer value indicating an amount of time remaining until the device is no longer backed off from the packet-switched domain.
11 . An apparatus as defined in claim 9 , wherein the processor is further configured to send a pending circuit-switched services status of the device with the request, the pending circuit-switched services status indicating circuit-switched services to be used by the device.
12 . An apparatus as defined in claim 11 , wherein the processor is further configured to send a packet-switched backoff timer value of the device with the request and the pending circuit-switched services status, the packet-switched backoff timer value indicating an amount of time remaining until the device is no longer backed off from the packet-switched domain.
13 . An apparatus as defined in claim 11 , wherein the processor is further configured to receive a re-direct message from the circuit-switched domain after using the circuit-switched services in the circuit-switched domain, and to re-select to attach the device to the packet-switched domain based on the re-direct message.
14 . An apparatus as defined in claim 9 , wherein the processor is further configured to, after performing a location area update:
send a request to register with the packet-switched domain; and
send a tracking area update request and an update-explanatory indication, the update-explanatory indication providing a reason for the tracking area update request.
15 . An apparatus as defined in claim 9 , wherein the processor is further configured to send a routing area update request, a packet-switched backoff status of the device, and a packet-switched backoff timer status of the device to a serving general packet radio service support node, the packet-switched backoff status indicating that the device is backed off from the packet-switched domain, and the packet-switched backoff timer status indicating that a packet-switched backoff timer for the device is active.
16 . A tangible machine readable storage medium comprising instructions that, when executed, cause a device to at least:
maintain the device backed off from a packet-switched domain;
when the device is backed off from the packet-switched domain, send a request to attach the device to an access network in a circuit-switched domain; and
send a packet-switched backoff status of the device with the request, the packet-switched backoff status indicating that the device is backed off from the packet-switched domain.
17 . A tangible machine readable storage medium as defined in claim 16 , wherein the instructions further cause the device to send a packet-switched backoff timer value of the device with the request, the packet-switched backoff timer value indicating an amount of time remaining until the device is no longer backed off from the packet-switched domain.
18 . A tangible machine readable storage medium as defined in claim 16 , wherein the instructions further cause the device to send a pending circuit-switched services status of the device with the request, the pending circuit-switched services status indicating circuit-switched services to be used by the device.
19 . A tangible machine readable storage medium as defined in claim 18 , wherein the instructions further cause the device to send a packet-switched backoff timer value of the device with the request and the pending circuit-switched services status, the packet-switched backoff timer value indicating an amount of time remaining until the device is no longer backed off from the packet-switched domain.
20 . A tangible machine readable storage medium as defined in claim 18 , wherein the instructions further cause the device to receive a re-direct message from the circuit-switched domain after using the circuit-switched services in the circuit-switched domain, and to re-select to attach the device to the packet-switched domain based on the re-direct message.