Transmission of feedback information for data transmission on multiple carriers
First Claim
1. A method for wireless communication, comprising:
- receiving data transmissions on a plurality of downlink carriers;
determining a plurality of uplink resources for acknowledgement (ACK) information based at least in part on a mapping between the plurality of uplink resources and downlink control information received on a carrier of the plurality of downlink carriers;
determining ACK information for the data transmissions on the plurality of downlink carriers;
selecting at least one resource to use to send the ACK information from among the plurality of uplink resources based on content of the ACK information associated with each downlink carrier of the plurality of downlink carriers;
determining at least one signal value to send on the at least one uplink resource based on the content of the ACK information associated with each downlink carrier of the plurality of downlink carriers; and
sending a transmission comprising the signal value on the at least one uplink resource to convey the ACK information.
1 Assignment
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Accused Products
Abstract
Techniques for sending feedback information for multi-carrier operation are described. In an aspect, feedback information for data transmissions on multiple downlink carriers may be sent on at least one uplink resource determined based on at least one downlink resource used to send at least one downlink grant for the data transmissions. In another aspect, feedback information for data transmissions on multiple downlink carriers may be sent with reduced or no orthogonal spreading to enable more feedback information to be sent. In yet another aspect, feedback information for data transmissions on multiple downlink carriers may be sent with channel selection. A UE may send a transmission of at least one signal value on at least one resource to convey acknowledgement (ACK) information for data transmissions on multiple downlink carriers. The signal value(s) and resource(s) may be determined based on the content of the ACK information.
24 Citations
15 Claims
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1. A method for wireless communication, comprising:
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receiving data transmissions on a plurality of downlink carriers; determining a plurality of uplink resources for acknowledgement (ACK) information based at least in part on a mapping between the plurality of uplink resources and downlink control information received on a carrier of the plurality of downlink carriers; determining ACK information for the data transmissions on the plurality of downlink carriers; selecting at least one resource to use to send the ACK information from among the plurality of uplink resources based on content of the ACK information associated with each downlink carrier of the plurality of downlink carriers; determining at least one signal value to send on the at least one uplink resource based on the content of the ACK information associated with each downlink carrier of the plurality of downlink carriers; and sending a transmission comprising the signal value on the at least one uplink resource to convey the ACK information. - View Dependent Claims (2, 3, 4, 5)
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6. An apparatus for wireless communication, comprising:
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a processor; and memory in electronic communication with the processor;
wherein the memory stores instructions executable by the processor to;receive data transmissions on a plurality of downlink carriers; determine a plurality of uplink resources for acknowledgement (ACK) information based at least in part on a mapping between the plurality of uplink resources and downlink control information received on a carrier of the plurality of downlink carriers; determine ACK information for the data transmissions on the plurality of downlink carriers; select at least one resource to use to send the ACK information from among the plurality of uplink resources based on content of the ACK information associated with each downlink carrier of the plurality of downlink carriers; determine at least one signal value to send on the at least one uplink resource based on the content of the ACK information associated with each downlink carrier of the plurality of downlink carriers; and send a transmission comprising the signal value on the at least one uplink resource to convey the ACK information. - View Dependent Claims (7, 8)
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9. A method for wireless communication, comprising:
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sending data transmissions on a plurality of downlink carriers; determining a plurality of resources available to send acknowledgement (ACK) information based at least in part on a mapping between the plurality of uplink resources and downlink control information sent on a carrier of the plurality of downlink carriers; detecting for the ACK information on the plurality of resources; determining at least one signal value sent on the at least one resource; and determining content of the ACK information based on at least one resource on which the ACK information is detected and the signal value. - View Dependent Claims (10, 11, 12)
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13. An apparatus for wireless communication, comprising:
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a processor; and memory in electronic communication with the processor;
wherein the memory stores instructions executable by the processor to;send data transmissions on a plurality of downlink carriers; determine a plurality of resources available to send acknowledgement (ACK) information based at least in part on a mapping between the plurality of uplink resources and downlink control information sent on a carrier of the plurality of downlink carriers; detect for the ACK information on the plurality of resources; determine at least one signal value sent on the at least one resource; and determine content of the ACK information based on at least one resource on which the ACK information is detected and the signal value. - View Dependent Claims (14, 15)
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Specification