Downlink communication
First Claim
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1. A method for conserving bandwidth in a communication system, the method comprising:
- spreading a data frame using a first spreading factor, wherein the first spreading factor is based at least in part on a quality of a link with a tag;
spreading a broadcast frame using a second spreading factor;
generating a complex data stream having a first component and a second component, wherein the data frame is assigned to the first component and the broadcast frame is assigned to the second component; and
transmitting the complex data stream to the tag.
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Abstract
A method for conserving bandwidth in a communication system includes spreading a data frame and a broadcast frame. A complex data stream having a first component and a second component is generated. The data frame is assigned to the first component and the broadcast frame is assigned to the second component. The complex data stream is transmitted to a tag.
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Citations
20 Claims
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1. A method for conserving bandwidth in a communication system, the method comprising:
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spreading a data frame using a first spreading factor, wherein the first spreading factor is based at least in part on a quality of a link with a tag; spreading a broadcast frame using a second spreading factor; generating a complex data stream having a first component and a second component, wherein the data frame is assigned to the first component and the broadcast frame is assigned to the second component; and transmitting the complex data stream to the tag. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An access point comprising:
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a processor configured to; spread a data frame using a first spreading factor, wherein the first spreading factor is based at least in part on a quality of a link with a tag; spread a broadcast frame using a second spreading factor; and generate a complex data stream having a first component and a second component, wherein the data frame is assigned to the first component and the broadcast frame is assigned to the second component; and a transmitter operatively coupled to the processor and configured to transmit the complex data stream to the tag. - View Dependent Claims (10, 11, 12, 13, 19)
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14. A computer-readable medium having computer-readable instructions stored thereon that, if executed by an access point, cause the access point to:
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spread a data frame using a first spreading factor, wherein the first spreading factor is based at least in part on a quality of a link with a tag; spread a broadcast frame using a second spreading factor; and generate a complex data stream having a first component and a second component, wherein the data frame is assigned to the first component and the broadcast frame is assigned to the second component; and transmit the complex data stream to the tag. - View Dependent Claims (15, 16, 17, 18, 20)
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Specification