Methods and systems for configuring overlapping mbms configurations on multiple carriers

A method in a UE served by a second cell (cell2) belonging to a second carrier frequency (f2), the method comprising:

• determining a first MBMS configuration comprising at least a first MBSFN subframe configuration for MBMS transmission on a first carrier frequency (f1), and a second configuration comprising of at least a second blank or partly blank subframe configuration on the second carrier (f2);
• determining that at least one first MBSFN subframe at least partly overlaps in time with at least one second blank or partly blank subframe;
• and
• receiving MBMS signals on at least one first cell belonging to the first carrier frequency (f1) during the determined overlapped MBSFN subframe, while not interrupting reception and/or transmission of signals on any unicast subframe on the second cell of the second carrier frequency.

A non-transitory computer readable medium storing instructions thereon for performing method in a first network node for enabling multimedia broadcast multicast service (MBMS) transmission in at least one multimedia broadcast multicast service single frequency network (MBSFN) area, the method comprising:

• determining a first MBMS configuration comprising at least a first MBSFN subframe configuration for MBMS transmission on a first carrier frequency, and a second configuration comprising of at least a second blank or partly blank subframe configuration on a second carrier frequency, wherein at least one first MBSFN subframe at least partly overlaps in time with at least one second subframe;
• configuring a second network node with the first MBMS configuration for MBMS signal transmission on the first carrier frequency;
• and
• configuring a third network node with the second configuration on the second carrier frequency.

A non-transitory computer readable medium storing instructions thereon for performing a method in a UE served by a second cell (cell2) belonging to a second carrier frequency (f2), the method comprising:

• determining a first MBMS configuration comprising at least a first MBSFN subframe configuration for MBMS transmission on a first carrier frequency (f1), and a second configuration comprising of at least a second blank or partly blank subframe configuration on the second carrier (f2);
• determining that at least one first MBSFN subframe at least partly overlaps in time with at least one second blank or partly blank subframe;
• and
• receiving MBMS signals on at least one first cell belonging to the first carrier frequency (f1) during the determined overlapped MBSFN subframe, while not interrupting reception and/or transmission of signals on any unicast subframe on the second cell of the second carrier frequency.