Patent ID: 8965391
Filing Date: 2015-02-24
Classification: H04W

Abstract:
1. A method comprising: determining, by a radio access node, a user-equipment device is operating under a first set of conditions; transmitting, by the radio access node to the user-equipment device while the user-equipment device is operating under the first set of conditions, a set of synchronization signals over particular radio resources, wherein the particular radio resources are used exclusively for transmitting synchronization signals while the user-equipment device is operating under the first set of conditions; determining, by the radio access node, the user-equipment device is operating under a second set of conditions instead of the first set of conditions; transmitting, by the radio access node to the user-equipment device, an indication that the radio access node switched to a mode in which the radio access node transmits bearer data and a reduced set of synchronization signals over the particular radio resources; and transmitting, by the radio access node to the user-equipment device while the user-equipment device is operating under the second set of conditions, bearer data and a reduced set of synchronization symbols over the particular radio resources.