Patent ID: 9106386
Filing Date: 2015-08-11
Classification: H04B,H04L,H04N,H04W,Y02D

Abstract:
1. A user equipment (UE) device for operating in a Long Term Evolution (LTE) network, comprising: a transceiver for providing an LTE air interface to an evolved Node B (eNB); and, processing circuitry connected to the transceiver and to: receive a radio resource control (RRC) configuration message from the eNB that configures the UE to receive channel state information (CSI) reference signals (CSI-RS) transmitted from one or more coordinated multi-point (CoMP) transmission points (TPs); wherein the RRC configuration message includes a set of indexed non-zero power (NZP) CSI-RS resources that are to be included in a CoMP measurement set, a set of zero power (ZP) CSI-RS resources, and interference measurement (IM) resources for use by the UE in making interference measurements; receive RRC configuration messaging that configures a plurality of CSI processes for which CSI reports as derived from a specified measurement subframe set are to be transmitted to the eNB; and, if RRC configuration messaging indicates that CSI for a particular CSI process is to be reported using a common rank indicator (RI), a common precoding matrix indicator (PMI), or a common preferred set of subbands that indicates use by another CSI process for the same measurement subframe set, drop the RI, PMI, or preferred set of subbands from the CSI report.