Multicarrier retransmission feedback
First Claim
Patent Images
1. A method, comprising:
- receiving a plurality of downlink resource grants related to a plurality of carriers for data transmission;
obtaining a downlink assignment index (DAI) related to each of the plurality of downlink resource grants; and
determining one or more lost downlink resource grants based at least in part on the DAI related to each of the plurality of downlink resource grants, wherein the determining one or more lost downlink resource grants includes;
determining a total number of resource grants transmitted by an access point from the DAI; and
performing one or more comparison operations based on a total number of the plurality of downlink resource grants and the total number of resource grants transmitted by the access point; and
wherein the total number of resource grants refers to the total number of resource grants across the plurality of carriers in a given subframe or the total number of resource grants across the plurality of carriers and a plurality of subframes.
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Abstract
Systems and methodologies are described that facilitate indicating feedback parameters for multiple single carrier assignments, multicarrier assignments, and/or the like according to single carrier-frequency division multiple access (SC-FDMA), relaxed SC-FDMA, etc. Feedback in relaxed SC-FDMA can be bundled by a mobile device to conserve power. In addition, a downlink assignment indicator (DAI) can be utilized to detect and indicate lost grants.
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Citations
28 Claims
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1. A method, comprising:
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receiving a plurality of downlink resource grants related to a plurality of carriers for data transmission; obtaining a downlink assignment index (DAI) related to each of the plurality of downlink resource grants; and determining one or more lost downlink resource grants based at least in part on the DAI related to each of the plurality of downlink resource grants, wherein the determining one or more lost downlink resource grants includes; determining a total number of resource grants transmitted by an access point from the DAI; and performing one or more comparison operations based on a total number of the plurality of downlink resource grants and the total number of resource grants transmitted by the access point; and wherein the total number of resource grants refers to the total number of resource grants across the plurality of carriers in a given subframe or the total number of resource grants across the plurality of carriers and a plurality of subframes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A wireless communications apparatus, comprising:
at least one processor configured to; obtain a plurality of downlink resource grants related to a plurality of carriers; determine a downlink assignment index (DAI) related to at least one of the plurality of downlink resource grants; and detect one or more lost downlink resource grants based at least in part on the DAI by determining a total number of resource grants transmitted by an access point from the DAI; and performing one or more comparison operations based on a total number of the plurality of downlink resource grants and the total number of resource grants transmitted by the access point, wherein the total number of resource grants refers to the total number of resource grants across the plurality of carriers in a given subframe or the total number of resource grants across the plurality of carriers and a plurality of subframes; and a memory coupled to the at least one processor. - View Dependent Claims (14, 15, 16)
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17. An apparatus, comprising:
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means for receiving a plurality of downlink resource grants related to a plurality of carriers for data transmission; and means for detecting one or more lost downlink resource grants based at least in part on a downlink assignment index (DAI) for at least one of the plurality of downlink resource grants, wherein the means for detecting one or more lost downlink resource grants includes; means for determining a total number of resource grants transmitted by an access point from the DAI; and means for performing one or more comparison operations based on a total number of the plurality of downlink resource grants and the total number of resource grants transmitted by the access point; and wherein the total number of resource grants refers to the total number of resource grants across the plurality of carriers in a given subframe or the total number of resource grants across the plurality of carriers and a plurality of subframes. - View Dependent Claims (18, 19, 20)
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21. A computer program product, comprising:
a computer-readable medium comprising; code for causing at least one computer to obtain a plurality of downlink resource grants related to a plurality of carriers; code for causing the at least one computer to determine a downlink assignment index (DAI) related to at least one of the plurality of downlink resource grants; and code for causing the at least one computer to detect one or more lost downlink resource grants based at least in part on the DAI, wherein the code for causing the at least one computer to detect one or more lost downlink resource grants includes; code for causing the at least one computer to determine a total number of resource grants transmitted by an access point from the DAI; and code for causing the at least one computer to perform one or more comparison operations based on a total number of the plurality of downlink resource grants and the total number of resource grants transmitted by the access point; and wherein the total number of resource grants refers to the total number of resource grants across the plurality of carriers in a given subframe or the total number of resource grants across the plurality of carriers and a plurality of subframes. - View Dependent Claims (22, 23, 24)
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25. An apparatus, comprising:
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a downlink grant receiving component configured to obtain a plurality of downlink resource grants related to a plurality of carriers for data transmission; and a lost grant determining component configured to detect one or more lost downlink resource grants based at least in part on a downlink assignment index (DAI) for at least one of the plurality of downlink resource grants, wherein the lost grant determining component is further configured to; determine a total number of resource grants transmitted by an access point from the DAI; and perform one or more comparison operations based on a total number of the plurality of downlink resource grants and the total number of resource grants transmitted by the access point; and wherein the total number of resource grants refers to the total number of resource grants across the plurality of carriers in a given subframe or the total number of resource grants across the plurality of carriers and a plurality of subframes. - View Dependent Claims (26, 27, 28)
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Specification