Network notification of a cell timing source outage
Techniques are provided for informing a network of a timing source outage in a node and reestablishing a synchronized time in the node. An example method for providing a timing source outage notification includes detecting an outage of a timing source, determining one or more impacted nodes, generating one or more notification messages based at least in part on a communication context for each of the one or more impacted nodes, and transmitting the one or more notification messages.
1. A method for providing a timing source outage notification, comprising:
detecting an outage of a timing source;
determining one or more impacted nodes;
determining a communication context for the one or more impacted nodes based at least in part on whether the one or more impacted nodes is participating in a synchronous sensitive procedure;
selecting a protocol based at least in part on the communication context;
generating one or more notification messages based at least in part on the selected protocol and the communication context for the one or more impacted nodes; and
transmitting the one or more notification messages.
2. The method of claim 1 wherein the outage of the timing source is associated with a base station.
3. The method of claim 2 wherein detecting the outage in the timing source includes receiving a timing source outage notification message from the base station based on a New Radio Positioning Protocol.
4. The method of claim 1 wherein detecting the outage of the timing source is based on a failure to decode a global navigation satellite system signal.
5. The method of claim 1 wherein the detecting the outage of the timing source is based on a reference signal measurement obtained by a user equipment.
6. The method of claim 1 wherein the one or more notification messages include an indication of a node experiencing the outage of the timing source and a timestamp indicating a time the outage of the timing source occurred.
7. The method of claim 1 wherein the one or more notification messages include at least one of an accuracy measure information element, an outage reason information element, a timing sources impacted information element, and a recovery time information element.
8. The method of claim 1 wherein the communication context for a first impacted node includes a positioning procedure, and transmitting the one or more notification messages includes transmitting a first notification message to the first impacted node via a medium access control element or a downlink control element.
9. The method of claim 1 wherein transmitting the one or more notification messages includes transmitting at least one notification message to a user equipment.
10. An apparatus, comprising:
a memory;
at least one transceiver;
at least one processor communicatively coupled to the memory and the at least one transceiver, and configured to:
detect an outage of a timing source;
determine one or more impacted nodes;
determine a communication context for the one or more impacted nodes based at least in part on whether the one or more impacted nodes is participating in a synchronous sensitive procedure;
select a protocol based at least in part on the communication context;
generate one or more notification messages based at least in part on the selected protocol and the communication context for the one or more impacted nodes; and
transmit the one or more notification messages.
11. The apparatus of claim 10 wherein the at least one processor is further configured to detect a failure to decode a global navigation satellite system signal.
12. The apparatus of claim 10 wherein the at least one processor is further configured detect the outage of the timing source based on a reference signal measurement obtained by a user equipment.
13. The apparatus of claim 10 wherein the one or more notification messages include at least one of an indication of a node experiencing the outage of the timing source, a timestamp indicating a time the outage of the timing source occurred, an accuracy measure information element, an outage reason information element, a timing sources impacted information element, and a recovery time information element.
14. The apparatus of claim 10 wherein the communication context for a first impacted node includes a positioning procedure, and the at least one processor is further configured to transmit a first notification message to the first impacted node via a medium access control element or a downlink control element.
15. The apparatus of claim 10 wherein the at least one processor is further configured to transmit at least one notification message to a user equipment.