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.

This document discloses a solution for synchronizing a terminal device to a network clock. According to an aspect, a method comprises as performed by the terminal device: receiving a control message from at least one access node, the control message comprising a first clock value indicating a transmission time of the control message; determining a geographical location of the terminal device and a geographical location of the at least one access node; computing, on the basis of the geographical locations of the terminal device and the at least one access node and further on the basis of the first clock value transmission time of the control message, a second clock value indicating a reception time of the control message at the terminal device; and updating a clock of the terminal device by using the second clock value.

To accurately achieve synchronization between a master and a slave that perform wireless communication.

A synchronization device that synchronizes time-series data between a master and a slave by wireless communication, the master including a packet transmission unit that transmits a plurality of packets at a predetermined interval, and the slave including a synchronization unit that synchronizes time-series data transmitted by the master and time-series data received by the slave on the basis of the interval between the plurality of packets.

A terminal including: a reception unit configured to receive, from a base station apparatus, configuration information of a time window for measurement based on an SSB; and a control unit configured to measure based on the SSB, wherein the configuration information includes, as a time length of the time window, a time length selected from a plurality of time lengths including a time length shorter than a predetermined time length, and wherein the control unit performs measurement based on the SSB within a time window of a time length included in the configuration information.

A timing adjustment method and a related device. The method includes: adjusting timing of a first link state based on first signaling, where the first link state is a link state of a first relay device or a terminal; and the first signaling is provided by a parent node of the first relay device, or a parent node of the terminal, or a first network-side device, where the parent node is a last-hop device of the first relay device or the terminal.

Techniques are provided for utilizing sidelink communications in response to a timing source outage. An example method for utilizing sidelink communications in response to a timing source outage according to the disclosure includes detecting the timing source outage associated with a first node, determining a second node experiencing a loss of services due to least in part on the timing source outage in the first node, determining a third node with a valid timing source, determining one or more relay nodes based at least in part on a location of the second node and a location of the third node, and providing one or more services to the second node via the one or more relay nodes.

Techniques are provided for reacting to a notification of a timing source outage in a network node. An example method for reacting to an indication of a timing source outage includes receiving the indication of the timing source outage associated with a first node, and deactivating at least one transmission from the first node.

Techniques are provided for handling positioning sessions in response to a timing source outage. An example method for configuring a positioning method based on a timing source outage includes receiving an indication of the timing source outage from a station, determining the positioning method based at least in part on the indication of the timing source outage, and sending an indication of the positioning method to one or more network entities.

Certain aspects of the present disclosure provide a method for wireless communication by a user equipment (UE). The UE starts a first timer (such as a discontinuous reception (DRX) hybrid automatic repeat request (HARQ) round-trip-time (RTT) timer), after sending an uplink (UL) data transmission to a network entity. The UE then starts a second timer (such as a DRX retransmission timer) when the first timer expires. The UE then determines whether to wake up or sleep for a duration of the second timer based on a prior block error rate (BLER).

Method and UE are provided for scheduling for PDCCH PEI detection. In particular, a BS can transmit a higher layer signaling to a UE. The higher layer signaling includes a configuration of at least one configurable PDCCH candidate number for PEI procedure used under a non-active mode. After receiving the higher layer signaling, the UE performs blind decoding under the non-active mode according to the configuration of the at least one configurable PDCCH candidate number.