A method for execution by a user equipment, UE (50A-E, 52, 54A-B, 56A-B, 58), in a wireless network, the method comprising the steps of: receiving, from an evolved NodeB, eNB, in the wireless network, a channel state information, CSI, request within an uplink grant downlink control information, DCI, wherein the CSI request comprises a CSI request field of two bits, wherein bit values of the two bits are associated with a serving cell configuration for a CSI process or CSI process configuration to be defined for a CSI subframe measurement set, wherein the wireless network is a heterogenous network employing enhanced interference mitigation and traffic adaptation, eIMTA, and in that the UE and the eNB employ time division duplexing, TDD, and the method further comprises: conditionally generating an aperiodic CSI report based on the bit values of the two bits of the CSI request field wherein: the aperiodic CSI report is based on one or more subframes of a radio frame used to communicate with the eNB that are part of the CSI subframe measurement set; the radio frame comprises any one or more of regular downlink subframes, regular uplink subframes, and flexible subframes, wherein the one or more flexible subframes are capable of being changed from uplink subframes to downlink subframes; if the bit values of the two bits of the CSI request field are no aperiodic CSI report is triggered; if the bit values of the two bits of the CSI request field are "01" a linked subframe is triggered for the aperiodic CSI report for a pair of CSI process and CSI subframe measurement set configured by higher layers for the serving cell; if the bit values of the two bits of the CSI request field are "10" the aperiodic CSI report is triggered for a first pair of CSI process and CSI measurement subframe set configured by higher layers; and, if the bit values of the two bits of the CSI request are "11" the aperiodic CSI report is triggered for a second pair of CSI process and CSI measurement subframe set configured by higher layers. conditionally generating an aperiodic CSI report based on the bit values of the two bits of the CSI request field wherein: the aperiodic CSI report is based on one or more subframes of a radio frame used to communicate with the eNB that are part of the CSI subframe measurement set; the radio frame comprises any one or more of regular downlink subframes, regular uplink subframes, and flexible subframes, wherein the one or more flexible subframes are capable of being changed from uplink subframes to downlink subframes; if the bit values of the two bits of the CSI request field are no aperiodic CSI report is triggered; if the bit values of the two bits of the CSI request field are "01" a linked subframe is triggered for the aperiodic CSI report for a pair of CSI process and CSI subframe measurement set configured by higher layers for the serving cell; if the bit values of the two bits of the CSI request field are "10" the aperiodic CSI report is triggered for a first pair of CSI process and CSI measurement subframe set configured by higher layers; and, if the bit values of the two bits of the CSI request are "11" the aperiodic CSI report is triggered for a second pair of CSI process and CSI measurement subframe set configured by higher layers.