Patent ID: 9203559
Filing Date: 2015-12-01
Classification: H04J,H04L,H04W

Abstract:
1. A method of wireless communications between a wireless communications network and wireless user equipment, comprising: receiving, using a primary time division duplex (TDD) configuration, data on a primary component carrier in a first frequency band; receiving, using a secondary TDD configuration, data on a secondary component carrier, in a first subframe, in a secondary frequency band different from the first frequency band, wherein the secondary TDD configuration defines a second subframe, relative to the first subframe, for transmitting a Hybrid Automatic Repeat Request (HARQ) acknowledgement/negative acknowledgement (ACK/NACK) for the data received on the secondary component carrier; determining that the HARQ ACK/NACK for the data received on the secondary component carrier is to be transmitted on the primary component carrier; and in response to the determining, transmitting, using the primary component carrier, the HARQ ACK/NACK for the data received on the second component carrier using a supplemental TDD configuration, wherein the HARQ ACK/NACK is transmitted in a subframe different from the second subframe and the supplemental TDD configuration comprises a supplemental downlink TDD configuration, the supplemental downlink TDD configuration specifying a set of downlink subframes including downlink subframes specified in the primary TDD configuration and the secondary TDD configuration.