One embodiment of the present invention sets forth a technique for performing time synchronization within a network. The technique includes receiving, from a first node in the network and at a first receive time, a first periodic beacon that includes a first network time associated with the first node. The technique also includes determining a second receive time at which a second periodic beacon from the first node is to be received based on the first network time and the first receive time. The technique further includes calculating a first listening window for the second periodic beacon based on the second receive time, a first jitter uncertainty, and a first drift uncertainty, and listening for the second periodic beacon during the first listening window.

One embodiment of the present invention sets forth a technique for performing time synchronization within a network. The technique includes receiving, from a first node in the network and at a first receive time, a first periodic beacon that includes a first network time associated with the first node. The technique also includes determining a second receive time at which a second periodic beacon from the first node is to be received based on the first network time and the first receive time. The technique further includes calculating a first listening window for the second periodic beacon based on the second receive time, a first jitter uncertainty, and a first drift uncertainty, and listening for the second periodic beacon during the first listening window.

Techniques for performing time synchronization within a network include a method comprising: determining, by a first node, a receive time at which a periodic beacon from a second node is expected to be received based on timing information associated with the second node; determining, by the first node, a first listening window for the periodic beacon based on the receive time and one or more of a drift uncertainty associated with an anticipated drift in a correction of a timing error between the first node and the second node or a jitter uncertainty associated with timing jitter in the first node or the second node; and listening, by the first node, for the periodic beacon during the first listening window.

Systems and methods for providing audio streams over peripheral component interconnect (PCI) express (PCIE) links are disclosed. In particular, exemplary aspects of the present disclosure are used to calculate an uplink timing requirement and adjust a margin time before a modem encodes audio data so that the encoding is done before data is transmitted to an external network. Further aspects of the present disclosure allow a first integrated circuit (IC) to synchronize its clock with that of the modem.

Systems and methods for providing audio streams over peripheral component interconnect (PCI) express (PCIE) links are disclosed. In particular, exemplary aspects of the present disclosure are used to calculate an uplink timing requirement and adjust a margin time before a modem encodes audio data so that the encoding is done before data is transmitted to an external network. Further aspects of the present disclosure allow a first integrated circuit (IC) to synchronize its clock with that of the modem.

Techniques for performing time synchronization within a network include a method comprising: determining, by a first node, a receive time at which a periodic beacon from a second node is expected to be received based on timing information associated with the second node; determining, by the first node, a first listening window for the periodic beacon based on the receive time and one or more of a drift uncertainty associated with an anticipated drift in a correction of a timing error between the first node and the second node or a jitter uncertainty associated with timing jitter in the first node or the second node; and listening, by the first node, for the periodic beacon during the first listening window.

A method of reducing jitter in transmission of a timestamp across a clock domain boundary includes storing N timestamps, generated in N successive clock cycles of an origin clock domain, in N parallel buffers in the origin clock domain under control of a modulo-N counter, transmitting outputs of the N parallel buffers across the clock domain boundary into a destination clock domain along with the modulo-N counter, processing the modulo-N counter in the destination clock domain to derive a selection signal that selects a stable timestamp from among the outputs of the N parallel buffers, and outputting the selected stable timestamp. The modulo-N counter may be Gray-coded modulo-N counter to reduce jitter in the modulo-N counter across the clock domain boundary.