Physical uplink control management in lte/lte-a systems with unlicensed spectrum

A method of wireless communication, comprising:

• receiving, by a user equipment (UE) from a base station, allocation of resources for uplink control channel transmission;
• generating, by the UE, one or more uplink control channel messages according to at least one control channel format;
• selecting, by the UE, a transmission component carrier (CC) from a plurality of CCs, wherein the transmission CC is selected based on a clear CCA detected by the UE;
• and
• transmitting, by the UE, the one or more uplink control channel messages to the base station over the allocated resources.

A method of wireless communication, comprising:

• identifying, by a base station, one or more clear uplink component carriers (CCs) of a plurality of CCs configured for each UE served by the base station;
• determining an uplink control CC of the one or more clear uplink CCs on which each UE will transmit an uplink control channel message;
• and
• monitoring the uplink control CC for the uplink control channel message from each UE.

An apparatus configured for wireless communication, comprising:

• means for receiving, by a user equipment (UE) from a base station, allocation of resources for uplink control channel transmission;
• means for generating, by the UE, one or more uplink control channel messages according to at least one control channel format;
• means for selecting, by the UE, a transmission component carrier (CC) from a plurality of CCs, wherein the transmission CC is selected based on a clear CCA detected by the UE;
• and
• means for transmitting, by the UE, the one or more uplink control channel messages to the base station over the allocated resources.

An apparatus configured for wireless communication, comprising:

• means for identifying, by a base station, one or more clear uplink component carriers (CCs) of a plurality of CCs configured for each UE served by the base station;
• means for determining an uplink control CC of the one or more clear uplink CCs on which each UE will transmit an uplink control channel message;
• and
• means for monitoring the uplink control CC for the uplink control channel message from each UE.

A non-transitory computer-readable medium having program code recorded thereon, the program code comprising:

• program code for causing a computer to receive, by a user equipment (UE) from a base station, allocation of resources for uplink control channel transmission;
• program code for causing the computer to generate, by the UE, one or more uplink control channel messages according to at least one control channel format;
• program code for causing the computer to select, by the UE, a transmission component carrier (CC) from a plurality of CCs, wherein the transmission CC is selected based on a clear CCA detected by the UE;
• and
• program code for causing the computer to transmit, by the UE, the one or more uplink control channel messages to the base station over the allocated resources.

A non-transitory computer-readable medium having program code recorded thereon, the program code comprising:

• program code for causing a computer to identify, by a base station, one or more clear uplink component carriers (CCs) of a plurality of CCs configured for each UE served by the base station;
• program code for causing the computer to determine an uplink control CC of the one or more clear uplink CCs on which each UE will transmit an uplink control channel message;
• and
• program code for causing the computer to monitor the uplink control CC for the uplink control channel message from each UE.

An apparatus configured for wireless communication, the apparatus comprising:

• at least one processor;
• and
• a memory coupled to the at least one processor,
• wherein the at least one processor is configured:
• to receive, by a user equipment (UE) from a base station, allocation of resources for uplink control channel transmission;
• to determine, at the UE, uplink control information (UCI) based, at least in part, on clear channel assessment (CCA) information associated with one or more carriers configured for the UE;
• to transmit, by the UE, UCI to the base station over the allocated resources.

An apparatus configured for wireless communication, the apparatus comprising:

• at least one processor;
• and
• a memory coupled to the at least one processor,
• wherein the at least one processor is configured:
• to receive, by a user equipment (UE) from a base station, allocation of resources for uplink control channel transmission;
• to generate, by the UE, one or more uplink control channel messages according to at least one control channel format;
• to select, by the UE, a transmission component carrier (CC) from a plurality of CCs, wherein the transmission CC is selected based on a clear CCA detected by the UE;
• and
• to transmit, by the UE, the one or more uplink control channel messages to the base station over the allocated resources.

An apparatus configured for wireless communication, the apparatus comprising:

• at least one processor;
• and
• a memory coupled to the at least one processor,
• wherein the at least one processor is configured:
• to identify, by a base station, one or more clear uplink component carriers (CCs) of a plurality of CCs configured for each UE served by the base station;
• to determine an uplink control CC of the one or more clear uplink CCs on which each UE will transmit an uplink control channel message;
• and
• to monitor the uplink control CC for the uplink control channel message from each UE.