Protocols for enabling mode 1 and mode 2 devices in TV white space networks
First Claim
1. An apparatus for wireless communications, comprising:
- a receiver configured to receive;
a beacon frame comprising an indication of a time that a first message will arrive;
the first message based on the indicated time, the first message including;
a field indicating a current version of an unused frequency spectrum map, the unused frequency spectrum map indicating channels usable for the wireless communications, andan indication that the first message is a contact verification signal (CVS); and
a response message, based on a request message, the response message including an updated unused frequency spectrum map, wherein the updated unused frequency spectrum map comprises the current operating channel of the apparatus if the current operating channel is still available; and
a processing system configured to;
determine whether the current version of the unused frequency spectrum map included in the first message is different than a previous version of the unused frequency spectrum map;
generate the request message for the update unused frequency spectrum map responsive to a determination that the current version of the unused frequency spectrum map is different than the previous version of the unused frequency spectrum map; and
select a channel for the wireless communications based on the updated unused frequency spectrum map; and
a transmitter configured to;
transmit the request message; and
transmit a wireless communication using the selected channel.
1 Assignment
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Accused Products
Abstract
Certain aspects of the present disclosure provide techniques and apparatus for operating in a television white space (TVWS) network. One example method generally includes receiving, at an apparatus, a message with a field indicating a current version of an unused frequency spectrum map (e.g., a white space map (WSM)), the unused frequency spectrum map indicating channels usable for wireless communications; determining whether the current version of the unused frequency spectrum map is different than a previous version of the unused frequency spectrum map; and using a channel for wireless communications based on the determination. Another example method generally includes accessing a database of available channels for a current location of an apparatus via a neighboring portable or fixed enabling apparatus and enabling one or more portable dependent apparatuses for the wireless communications via one or more of the available channels.
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Citations
26 Claims
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1. An apparatus for wireless communications, comprising:
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a receiver configured to receive; a beacon frame comprising an indication of a time that a first message will arrive; the first message based on the indicated time, the first message including; a field indicating a current version of an unused frequency spectrum map, the unused frequency spectrum map indicating channels usable for the wireless communications, and an indication that the first message is a contact verification signal (CVS); and a response message, based on a request message, the response message including an updated unused frequency spectrum map, wherein the updated unused frequency spectrum map comprises the current operating channel of the apparatus if the current operating channel is still available; and a processing system configured to; determine whether the current version of the unused frequency spectrum map included in the first message is different than a previous version of the unused frequency spectrum map; generate the request message for the update unused frequency spectrum map responsive to a determination that the current version of the unused frequency spectrum map is different than the previous version of the unused frequency spectrum map; and select a channel for the wireless communications based on the updated unused frequency spectrum map; and a transmitter configured to; transmit the request message; and transmit a wireless communication using the selected channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for wireless communications, comprising:
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receiving a beacon frame comprising an indication of a time that a first message will arrive; receiving the first message based on the indicated time, the first message including; a field indicating a current version of an unused frequency spectrum map, the unused frequency spectrum map indicating channels usable for the wireless communications, and an indication that the first message is a contact verification signal (CVS); and determining whether the current version of the unused frequency spectrum map included in the first message is different than a previous version of the unused frequency spectrum map; generating a request message for the updated unused frequency spectrum map responsive to a determination that the current version of the unused frequency spectrum map is different than the previous version of the unused frequency spectrum map; transmitting the request message; receiving a response message, based on the request message, the response message including an updated unused frequency spectrum map, wherein the updated unused frequency spectrum map comprises the current operating channel of the apparatus if the current operating channel is still available; and selecting a channel for the wireless communications based on the updated unused frequency spectrum map; and selecting a channel for the wireless communications based on the updated unused frequency spectrum; and transmitting a wireless communication using the selected channel. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. An apparatus for wireless communications, comprising:
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means for receiving a beacon frame comprising an indication of a time that a first message will arrive; and means for receiving the first message based on the indicated time, the first message including; a field indicating a current version of an unused frequency spectrum map, the unused frequency spectrum map indicating channels usable for the wireless communications, and an indication that the first message is a contact verification signal (CVS); and means for determining whether the current version of the unused frequency spectrum map included in the first message is different than a previous version of the unused frequency spectrum map; means for generating a request message for the updated unused frequency spectrum map responsive to a determination that the current version of the unused frequency spectrum map is different than the previous version of the unused frequency spectrum map; means for transmitting the request message; means for receiving a response message, based on the request message, the response message including an updated unused frequency spectrum map, wherein the updated unused frequency spectrum map comprises the current operating channel of the apparatus if the current operating channel is still available; and means for selecting a channel for the wireless communications based on the updated unused frequency spectrum map; and means for transmitting a wireless communication using the selected channel. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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25. A non-transitory computer-readable medium comprising instructions, that when executed by a processor, cause an apparatus to:
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receive a beacon frame comprising an indication of a time that a first message will arrive; receive the first message based on the indicated time, the first message including; a field indicating a current version of an unused frequency spectrum map, the unused frequency spectrum map indicating channels usable for the wireless communications, and an indication that the first message is a contact verification signal (CVS); and determine whether the current version of the unused frequency spectrum map included in the first message is different than a previous version of the unused frequency spectrum map; generate a request message for the updated unused frequency spectrum map responsive to a determination that the current version of the unused frequency spectrum map is different than the previous version of the unused frequency spectrum map; transmitting the request message; receiving a response message, based on the request message, the response message including an updated unused frequency spectrum map, wherein the updated unused frequency spectrum map comprises the current operating channel of the apparatus if the current operating channel is still available; and select a channel for the wireless communications based on the updated unused frequency spectrum map; and transmit a wireless communication using the selected channel.
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26. A wireless node, comprising:
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at least one antenna; a receiver configured to receive via the at least one antenna; a beacon frame comprising an indication of a time that a first message will arrive; and the first message based on the indicated time, the first message including; a field indicating a current version of an unused frequency spectrum map, the unused frequency spectrum map indicating channels usable for the wireless communications, and an indication that the first message is a contact verification signal (CVS); and a response message, based on the request message, the response message including an updated unused frequency spectrum map, wherein the updated unused frequency spectrum map comprises the current operating channel of the apparatus if the current operating channel is still available; and a processing system configured to; determine whether the current version of the unused frequency spectrum map included in the first message is different than a previous version of the unused frequency spectrum map; generate the request message for the update unused frequency spectrum map responsive to a determination that the current version of the unused frequency spectrum map is different than the previous version of the unused frequency spectrum map; and select a channel for the wireless communications based on the updated unused frequency spectrum map; and a transmitter configured to; transmit the request message; and transmit a wireless communication using the selected channel.
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Specification