Methods and apparatuses for provision of a downlink synchronization group during discontinuous transmission in an unlicensed band

摘要

A method, apparatus and computer program product are provided for generating a downlink synchronization group utilized during a discontinuous transmission in an unlicensed band. A method and apparatus may determine a carrier(s) providing a signal(s) enabling timing and frequency tracking a downlink carrier(s) within a downlink synchronization group to devices responsive to discontinuous transmission via a medium(s) of an unlicensed band on a secondary component carrier. The medium(s) previously utilized to provide content to a device(s). The method and apparatus may also provide an indication of the carrier(s) to the device notifying the device that information of the signal is receivable via the carrier on the unlicensed band. The method and apparatus may also send the signal(s) to the device via the carrier enabling the device to obtain timing and frequency information.

主权项

1. A method comprising:
determining at least one carrier to provide at least one signal which enables timing and frequency tracking of one or more downlink carriers within a downlink synchronization group to one or more devices in response to discontinuous transmission via at least one medium of an unlicensed band on a secondary component carrier previously utilized to provide content to at least one of the devices; providing of an indication of the determined carrier to the device to notify the device that information associated with the signal is receivable via the carrier on the unlicensed band; and controlling sending of the signal to the device via the carrier to enable the device to obtain timing and frequency information of the downlink carriers.