Systems and methods for preventing premature processing during beam forming
First Claim
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1. A method for preventing premature processing during beam forming, the method comprising:
- determining, at an access node, that a wireless device has received data using a beam formed transmission from the access node;
calculating a gap between a reported channel quality for the wireless device based on a non-beam formed reference signal and a channel quality indicator (CQI) based on a data transmission made with a modulation and coding scheme (MCS) transmission used to transmit downlink data to the wireless device using the beam formed transmission;
determining a signal level corresponding to the modulation and coding scheme;
converting the calculated gap to a signal level gap based on the determined signal level corresponding to the modulation and coding scheme;
adjusting a threshold value used to determine when the wireless device scans a plurality of frequency bands based on the calculated gap by subtracting the signal level gap from the threshold value; and
transmitting the adjusted threshold value to the wireless device.
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Abstract
Systems and methods are described for preventing premature processing during beam forming. It may be determined, at an access node, that a wireless device has received data using a beam formed transmission from the access node. A gap may be calculated between a reported signal level for the wireless device and a transmission scheme used to transmit downlink data to the wireless device. A threshold value may then be adjusted based on the calculated gap, where the threshold value is used to determine when the wireless device scans a plurality of frequency bands. The adjusted threshold value may be transmitted to the wireless device.
63 Citations
14 Claims
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1. A method for preventing premature processing during beam forming, the method comprising:
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determining, at an access node, that a wireless device has received data using a beam formed transmission from the access node; calculating a gap between a reported channel quality for the wireless device based on a non-beam formed reference signal and a channel quality indicator (CQI) based on a data transmission made with a modulation and coding scheme (MCS) transmission used to transmit downlink data to the wireless device using the beam formed transmission; determining a signal level corresponding to the modulation and coding scheme; converting the calculated gap to a signal level gap based on the determined signal level corresponding to the modulation and coding scheme; adjusting a threshold value used to determine when the wireless device scans a plurality of frequency bands based on the calculated gap by subtracting the signal level gap from the threshold value; and transmitting the adjusted threshold value to the wireless device. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system for preventing premature processing during beam forming, the system comprising:
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an access node with a processor configured to; determine that a wireless device has received data using a beam formed transmission from the access node; calculate a gap between a reported channel quality for the wireless device based on a non-beam formed reference signal and a channel quality indicator (CQI) based on a data transmission made with a modulation and coding scheme (MCS) transmission used to transmit downlink data to the wireless device using the beam formed transmission; determine a signal level corresponding to the modulation and coding scheme; convert the calculated gap to a signal level gap based on the determined signal level corresponding to the modulation and coding scheme; adjust a threshold value used to determine when the wireless device scans a plurality of frequency bands based on the calculated gap by subtracting the signal level gap from the threshold value; and transmit the adjusted threshold value to the wireless device. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification