Control information feedback for eCC on PCell
AssigneeQUALCOMM Incorporated
InventorsTaesang Yoo, Durga Prasad Malladi, Yongbin Wei, Jelena Damnjanovic, Aleksandar Damnjanovic
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Abstract
Described herein are methods, systems, and apparatus for communicating control information over a primary component carrier (PCell). In one example, a method for wireless communication is described that includes communicating using an enhanced component carrier (eCC) on at least a secondary component carrier (SCell) in a carrier aggregation (CA) configuration. The method may also include using a PCell for control information pertaining to communications on the eCC. The control information may be channel state information (CSI) or acknowledgment/negative-acknowledgment (ACK/NACK) feedback information.
Claims31
A method for wireless communication, comprising:
- configuring a wireless device for communications using a component carrier (CC);
- communicating, by the wireless device, using the CC on at least a secondary cell in a carrier aggregation (CA) configuration, wherein the CC comprises a wideband carrier having non-backward compatible orthogonal frequency division multiplexing (OFDM) numerology with respect to a carrier of a primary cell;
- using, by the wireless device, the primary cell for control information pertaining to communications on the CC;
- receiving, at the wireless device, an uplink grant that identifies one or both of time and frequency resources for a physical uplink shared channel (PUSCH) transmission on the CC;
- and
- refraining from sending, at the wireless device, uplink data in response to a failure to gain access to a medium identified in the uplink grant using the identified times or frequency resources.
A method for wireless communication, comprising:
- configuring a wireless device for communication using a component carrier (CC);
- communicating, by the wireless device, using the CC on at least a secondary cell in a carrier aggregation (CA) configuration, wherein the CC comprises a wideband carrier having non-backward compatible orthogonal frequency division multiplexing (OFDM) numerology with respect to a carrier of a primary cell;
- using, by the wireless device, the primary cell for control information pertaining to communication on the CC;
- sending, by the wireless device, a downlink grant that identifies one or both of time and frequency resources for physical downlink shared channel (PDSCH) transmission on the CC;
- and
- refraining from sending, at the wireless device, downlink data in response to a failure to gain access to a medium identified in the downlink grant using the identified time or frequency resources.
An apparatus for wireless communication, comprising:
- a processor;
- memory in electronic communication with the processor;
- and
- instructions stored in the memory, the instructions being executable by the processor to:
- configure a wireless device for communications using a component carrier (CC);
- communicate, by the wireless device, using the CC on at least a secondary cell in a carrier aggregation (CA) configuration, wherein the CC comprises a wideband carrier having non-backward compatible orthogonal frequency division multiplexing (OFDM) numerology with respect to a carrier of a primary cell;
- use, by the wireless device, a primary cell for control information pertaining to communications on the CC.
- receive, by the wireless device, an uplink grant the identifies one or both of time and frequency resources for a physical uplink shared channel (PUSCH) transmission on the CC;
- and
- refrain from sending, by the wireless device, uplink data in response to a failure to gain access to a medium identified in the uplink grant using the identified times of frequency resources.
An apparatus for wireless communication, comprising:
- a processor;
- memory in electronic communication with the processor;
- and
- instructions stored in the memory, the instructions being executable by the processor to:
- configure a wireless device for communications using a component carrier (CC);
- communicate, by the wireless device, using the CC on at least a secondary cell in a carrier aggregation (CA) configuration, wherein the CC comprises a wideband carrier having non-backward compatible orthogonal frequency division multiplexing (OFDM) numerology with respect to a carrier of a primary cell;
- use, by the wireless device, a primary cell for control information pertaining to communications on the CC
- send, by the wireless device, a downlink grant that identifies one or both of time and frequency resources for physical downlink shared channel (PDSCH) transmission on the CC;
- and
- refrain from sending, at the wireless device, downlink data in response to a failure to gain access to a medium identified in the downlink grant using the identified time or frequency resources.
Dependencies are inferred from the claim text.