Adaptive TTI Bundling Configuration

1 . A method of an adaptive Transmit Time Interval (TTI) Bundling Configuration using a measurement gap, comprising:

scheduling allocation of a TTI bundle wherein part of the TTI bundle overlaps a measurement gap;

transmitting, by a User Equipment (UE), only a part of the scheduled TTI bundle;

scheduling other UEs to use the resources not used by the scheduled TTI bundle; and

determining when TTI bundling is no longer required, and activating Scell wherein the UE stops sending UL traffic in a bundle.

2 . The method of claim 1 wherein when more TTIs are needed then providing a periodic Voice over Long Term Evolution (VOLTE) allocation an offset that will not collide with a measurement gap.

3 . The method of claim 1 further comprising retransmitting a Hybrid Automatic Repeat Request (HARQ) within a bundle without waiting for feedback from a previous transmission according to a TTI_BUNDLE_SIZE.

4 . The method of claim 3 further comprising wherein a HARQ feedback of a bundle is only received for the last TTI of the bundle, regardless of whether a transmission in that TTI takes place.

5 . A method of adaptive Transmit Time Interval (TTI) Bundling Configuration using a Secondary cell (Scell) MAC control element, comprising:

configuring attached UEs with TTI bundling and Scell;

activating an Scell to the UEs;

determining whether TTI bundling is needed to a specific UE, and if so, then sending, by an eNodeB (eNB), an Scell deactivation MAC control element with the UL grant, allocating the VOLTE UL traffic; and

determining when TTI bundling is no longer required, and activating Scell wherein the UE stops sending UL traffic in a bundle.

6 . The method of claim 5 wherein activating an Scell is done using a defined MAC control element.

7 . The method of claim 5 further comprising enabling TTI bundling once Scell is deactivated.