Patent ID: 9107223
Filing Date: 2015-08-11
Classification: H04J,H04L,H04W

Abstract:
1. A method of reducing interference between reference signals from user equipments in a wireless network, the method comprising: receiving a time shift value from a node in the wireless network; applying an interference randomization technique to a reference signal; generating a sequence based on the reference signal to which the interference randomization technique has been applied; comparing a Virtual Cell Identifier (VCID) for a serving cell of the user equipment with a Physical Cell Identifier (PCID) for the serving cell of the user equipment; selectively setting a time shift associated with the reference signal to the time shift value received from the network node, in response to determining that the VCID is different from the PCID; applying the time shift to the sequence to derive a processed reference signal; and transmitting the processed reference signal to the node.