Patent ID: 9276709
Filing Date: 2016-03-01
CPC Classification: H04H,H04L,H04W

Claim Text:
1. A method comprising: transmitting, by a first network controller, at least one indicator to a served user equipment (UE), wherein the at least one indicator specifies a cell-specific reference signal (CRS) port count associated with CRS symbols transmitted by a second network controller, a CRS frequency shift of the CRS symbols transmitted by the second network controller, and whether a subframe carrying the CRS symbols transmitted by the second network controller is a Multicast-Broadcast Single Frequency Network (MBSFN) subframe, wherein a combination of the CRS frequency shift, the CRS port count, and whether the subframe carrying the CRS symbols is an MBSFN subframe signal to the served UE which resources elements (REs) of the subframe carry the CRS symbols transmitted by the second network controller, the REs carrying the CRS symbols being in one or both of a physical downlink shared channel (PDSCH) region of the subframe and a physical downlink control channel (PDCCH) region of the subframe, and wherein the first network controller is different than the second network controller.