Patent ID: 9553697
Date: 2017-01-24
CPC Classifications: H04L

Claim:
1. A method for wireless communication, comprising: receiving data transmissions on a plurality of carriers configured for use by a user equipment (UE); determining acknowledgement/negative acknowledgement (ACK/NACK) bits for the data transmissions at the UE; determining a plurality of ACK/NACK transmission techniques comprising at least a cross-carrier bundling technique in which ACK/NACK bits corresponding to data transmissions on a subset of two or more carriers in the plurality of carriers are bundled and a bundling technique that is not associated with the cross-carrier bundling technique; determining, based at least in part on a total number of the ACK/NACK bits for the data transmissions received on the plurality of carriers, to use the cross-carrier bundling technique for sending the ACK/NACK bits for the data transmissions, wherein the bundling technique that is not associated with the cross-carrier bundling technique is prioritized over the cross-carrier bundling technique when the total number of the ACK/NACK bits is less than a threshold; determining a subset of at least two carriers of the plurality of carriers for which to bundle the ACK/NACK bits using the cross-carrier bundling technique; bundling ACK/NACK bits corresponding to the data transmissions on the at least two carriers of the subset with the cross-carrier bundling technique; bundling ACK/NACK bits corresponding to the data transmissions with the bundling technique that is not associated with the cross-carrier bundling technique; and sending, by the UE, ACK/NACK information comprising ACK/NACK bits bundled according to the bundling techniques.