WIRELESS LOCAL AREA NETWORK USING TV WHITE SPACE SPECTRUM AND LONG TERM EVOLUTION SYSTEM ARCHITECTURE
First Claim
Patent Images
1. A wireless local area network, comprising:
- a local area network gateway that transmits Long Term Evolution (LTE) downlink frames in which at least a predetermined subset of pilot symbol positions used in the LTE downlink frames to transmit pilot symbols for channel estimation maybe filled with control data symbols to increase a data capacity of each of the LTE downlink frames; and
a data sink that receives the modified LTE frames and extracts the control data symbols from the predetermined subset of pilot symbol positions.
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Abstract
A wireless local area network (WLAN) gateway may use a modified LTE radio frame and TV white space spectrum for data communications in a wireless local area network. In the modified LTE downlink frame a predefined subset of the pilot (reference) symbol subcarriers are used to carry information to data sinks in the WLAN.
173 Citations
20 Claims
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1. A wireless local area network, comprising:
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a local area network gateway that transmits Long Term Evolution (LTE) downlink frames in which at least a predetermined subset of pilot symbol positions used in the LTE downlink frames to transmit pilot symbols for channel estimation maybe filled with control data symbols to increase a data capacity of each of the LTE downlink frames; and a data sink that receives the modified LTE frames and extracts the control data symbols from the predetermined subset of pilot symbol positions. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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- 8. A local area network gateway comprising a transceiver that transmits modified Long Term Evolution (LTE) downlink frames in which a predetermined subset of the pilot symbols used for channel estimation in the LTE downlink frames are replaced with control data symbols to increase the spectrum efficiency.
- 12. A data sink in a local area network, comprising a Long Term Evolution (LTE) frame processor that processes modified LTE downlink frames transmitted by a local area network gateway and extracts control data symbols from a subset of pilot symbol positions used to carry the control data in the modified LTE downlink frame.
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16. A method of data communications in a wireless local area network, comprising:
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transmitting within the wireless local area network modified Long Term Evolution (LTE) downlink frames in which a predetermined subset of the pilot symbol positions used in LTE downlink frames to transmit pilot symbols for channel estimation are filled with control data symbols to increase a data capacity of each of the LTE downlink frames; and on receipt at a data sink in the wireless local area network of a one of the modified LTE downlink frames, demodulating the modified LTE downlink frame and extracting the control data symbols from the predetermined subset of the pilot symbol positions. - View Dependent Claims (17, 18, 19, 20)
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Specification