Channel quality reporting for adaptive sectorization
First Claim
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1. A method for enhancing performance for a wireless communication environment, comprising:
- receiving a pilot;
calculating an instantaneous channel quality indicator (CQI) based at least in part upon the pilot;
calculating a long term CQI based at least in part upon the instantaneous CQI; and
reporting the long term CQI in order to enable a modification of a condition of the wireless communication environment based at least in part on the reported long term CQI, the reporting being performed responsive to the occurrence a beam pattern change, a user device beam coverage change, a drop by the long term CQI below a predetermined threshold, or a combination thereof.
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Abstract
Apparatuses and methodologies are described that enhance performance in a wireless communication system using beamforming transmissions. According to one aspect, the channel quality is monitored. Channel quality indicators can be used to select a scheduling technique, such as space division multiplexing (SDM), multiple-input multiple output (MIMO) transmission and opportunistic beamforming for one or more user devices. In addition, the CQI can be used to determine the appropriate beam assignment or to update the beam pattern.
748 Citations
24 Claims
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1. A method for enhancing performance for a wireless communication environment, comprising:
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receiving a pilot; calculating an instantaneous channel quality indicator (CQI) based at least in part upon the pilot; calculating a long term CQI based at least in part upon the instantaneous CQI; and reporting the long term CQI in order to enable a modification of a condition of the wireless communication environment based at least in part on the reported long term CQI, the reporting being performed responsive to the occurrence a beam pattern change, a user device beam coverage change, a drop by the long term CQI below a predetermined threshold, or a combination thereof. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A wireless communication apparatus comprising:
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a processor configured to receive a pilot, calculate an instantaneous channel quality indicator (CQI) based at least in part upon the pilot, calculate a long term CQI based at least in part upon the instantaneous CQI, and report the long term CQI in order to enable a modification of a condition of the wireless communication environment based at least in part on the reported long term CQI, the processor being configured to perform the reporting responsive to the occurrence a beam pattern change, a user device beam coverage change, a drop by the long term CQI below a predetermined threshold, or a combination thereof; and a memory coupled with the processor. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A wireless communication apparatus for enhancing performance for a wireless communication environment, comprising:
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means for receiving a pilot; means for calculating an instantaneous channel quality indicator (CQI) based at least in part upon the pilot; means for calculating a long term CQI based at least in part upon the instantaneous CQI; means for reporting the long term CQI in order to enable a modification of a condition of the wireless communication environment based at least in part on the reported long term CQI, the means for reporting being configured to report responsive to the occurrence of a beam pattern change, a user device beam coverage change, a drop by the long term CQI below a predetermined threshold, or a combination thereof. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A non-transitory computer-readable medium having stored thereon computer-executable instructions comprising instructions for:
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receiving a pilot; calculating an instantaneous channel quality indicator (CQI) based at least in part upon the pilot; calculating a long term CQI based at least in part upon the instantaneous CQI; and reporting the long term CQI in order to enable a modification of a condition of the wireless communication environment based at least in part on the reported long term CQI, the reporting being performed responsive to the occurrence of a beam pattern change, a user device beam coverage change, a drop by the long term CQI below a predetermined threshold, or a combination thereof. - View Dependent Claims (20, 21, 22, 23, 24)
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Specification