Patent ID: 9326283
Filing Date: 2016-04-26
CPC Classification: H04B,H04L,H04W

Claim Text:
1. A method comprising: transmitting in a pair of timeslots of a subcarrier of a primary carrier, wherein transmitting in the pair of timeslots includes transmitting demodulation reference signals in respective last and second to last resource elements of each of the pair of timeslots; and transmitting in first and second timeslots of a subcarrier of an extension resource carrier that is aggregated with the primary carrier, the first timeslot having a first plurality of resource elements that are ordered from a first resource element to a last resource element and the second timeslot having a second plurality of resource elements that are ordered from a first resource element to a last resource element, wherein transmitting in the first and second timeslots of the subcarrier of the extension resource carrier includes: transmitting a first symbol in the first resource element of the first plurality of resource elements, wherein the first symbol is a user equipment-specific demodulation reference signal; transmitting a second symbol in the last resource element of the first plurality of resource elements, wherein the second symbol is other than a user equipment-specific demodulation reference signal; and transmitting a third symbol in the last resource element of the second plurality of resource elements, wherein the third symbol is a user equipment-specific demodulation reference signal.