Patent application number | Description | Published |
20110090821 | DIRECT LINK SETUP METHOD AND CHANNEL ALLOCATION METHOD IN MULTI-CHANNEL WIRELESS COMMUNICATION NETWORK - Provided are a direct link setup procedure and a channel allocation mechanism in a multi-channel wireless communication network. The method includes transmitting a direct link setup request message comprising request information for specifying one or more channels, each of which desires to set up a direct link, among multiple channels, and receiving a direct link setup response message comprising response information for setting up the direct link to one or more channels in response to the direct link setup request message. | 04-21-2011 |
20110286405 | METHOD AND APPARATUS FOR DYNAMIC STATION ENABLEMENT PROCEDURE IN A WIRELESS LOCAL AREA NETWORK SYSTEM - A method of dynamic station enablement procedure in a wireless local area network (WLAN) is disclosed. A method of performing an enablement procedure by a first station in a regulatory domain where a licensed device and an unlicensed device are permitted to operate together in a wireless local area network (WLAN) comprises receiving, from a second station, an enabling signal including advertisement protocol element with an advertisement protocol identification (ID) field which indicates an advertisement protocol the second station supports; and exchanging DSE (dynamic station enablement) related messages with the second station using a GAS (generic advertisement service) protocol. | 11-24-2011 |
20110299481 | METHOD AND APPARATUS FOR A STATION TO OPERATE WITHIN WLAN SYSTEM - Methods and apparatuses for a specific station, operating as a non-AP (Access Point) station permitted to operate within available channels not used by a licensed device, to operate as an AP station in a Wireless Local Area Network (WLAN) are disclosed. A specific protocol related to a registration of a station's location to operate within a white space id defined whose Information IDs comprises a registration request and a registration response. Using the defined registration request and registration response, the station can register its geographical location with a Registered Location Server (RLS), and operate as an AP STA within WS. | 12-08-2011 |
20130072232 | Method and Apparatus for Performing a Channel Availability Query for a Plurality of Locations - The present invention relates to a method and apparatus for channel availability query on multiple locations in a wireless local area network system. A method for a station (STA) to perform a channel query procedure in a wireless communication system comprises: transmitting, at a first STA corresponding to a channel availability query requesting STA, a first message to a second STA supporting the channel availability query procedure, wherein the second STA corresponds to a channel availability query responding STA, wherein the first message comprises device location information of one or more locations for the channel availability query; and receiving, at the first STA from the second STA, a second message comprising channel availability information, wherein the channel availability information is commonly applicable to multiple locations within an area, when the device location information of the first message is for the multiple location within the area. | 03-21-2013 |
20130109403 | Method for Operating a Station in a White Space, and Apparatus for Same | 05-02-2013 |
20130114586 | Method and Apparatus for Receiving Multi-Band Information in a WLAN System - The present invention relates to a method and apparatus for receiving multi-band information in a WLAN system. The method for receiving multi-band information by a first station (STA), operating as an unlicensed device, within an available channel which is not used by a licensed device in a white space band of a WLAN system according to one aspect of the present invention comprises: allowing the first station to receive, from a second station, information about a first band and a second band through the first band that is currently being communicated with the first and second stations; and allowing the first station to communication with the second station through the second band, wherein the first station and the second station are multi-band stations that support the first band and the second band. | 05-09-2013 |
20130122951 | Method and Apparatus for Scanning Existing Networks in the White Space - A method and an apparatus for scanning existing networks in TV White Space are disclosed. For scanning existing networks at a station to operate as an unlicensed device in a regulatory domain where a licensed device and the unlicensed device are permitted to operate, the method comprises: receiving a white space map (WSM) comprising information for available channels to be used for the unlicensed device to operate a wireless local area network (WLAN) operation and maximum transmission powers allowed for each of the available channels from an enabling station, wherein the enabling station is a station determining the available channels at its location using its own geographic location identification and a regulatory database access capability; and scanning the existing networks on the available channels identified within the received WSM. | 05-16-2013 |
20130143613 | Method and Device for Transmitting and Receiving Available Channel Information Within White Space Band - The present invention relates to a method for a first station (STA) comprising: obtaining available channel information by accessing a database that manages the available channel information within the white space band, and transmitting a white space map (WSM) generated according to the available channel information to a second STA, the WSM includes a channel map field having a variable length, a length field including the length of the channel map field, and map ID information indicating a type of the WSM and whether the WSM being updated; and if the available channel information obtained from the DB indicates that no available channel exists within the white space band, a map ID is set to indicate that the WSM is the updated WSM, and the first STA transmits the WSM which is set as the length field to indicate that the length of the channel map field is 0. | 06-06-2013 |
20130156007 | Handover in White Space Band - A station forms a connection with a first access point (AP): a particular station for storing first active station identification information of an active station that manages the activation of the station serviced by said first AP accesses a region serviced by a second AP, and receives from said second AP a message for containing second active station identification information of the active station that manages the activation of the station serviced by said second AP; said first active station identification information is compared with said second active station identification information; and if said first active station identification information is different from said second active station identification information, a procedure for changing the active station and a handover to said second AP are performed to a second active STA corresponding to said second active station identification information. | 06-20-2013 |
20130170458 | METHOD AND APPARATUS FOR A STATION TO OPERATE WITHIN WLAN SYSTEM - Methods and apparatuses for a specific station, operating as a non-AP (Access Point) station permitted to operate within available channels not used by a licensed device, to operate as an AP station in a Wireless Local Area Network (WLAN) are disclosed. A specific protocol related to a registration of a station's location to operate within a white space id defined whose Information IDs comprises a registration request and a registration response. Using the defined registration request and registration response, the station can register its geographical location with a Registered Location Server (RLS), and operate as an AP STA within WS. | 07-04-2013 |
20130177007 | Method and Apparatus of Transmitting a White Space Map Information in a Wireless Local Area Network System - A method of transmitting a White Space Map information in a wireless local area network system (WLAN) is disclosed. A method of transmitting a white space map information from a first station to a second station in a regulatory domain where a licensed device and an unlicensed device are permitted to operate together in a wireless local area network (WLAN) comprises transmitting, from the first station, one of a beacon frame, a probe response frame and a white space map announcement frame comprising a white space map (WSM) element comprising information for first available channels, which are available for the unlicensed device, to the second station, wherein the WSM element comprises a device type field indicating which device type the list of the fist available channels is for. | 07-11-2013 |
20130195096 | Method and Apparatus for Scanning Existing Networks in TVWS - A method and an apparatus for scanning existing networks in TV White Space are disclosed. For scanning existing networks at a station to operate as an unlicensed device in a regulatory domain where a licensed device and the unlicensed device are permitted to operate, the method comprises: receiving a white space map (WSM) comprising information for available channels to be used for the unlicensed device to operate a wireless local area network (WLAN) operation and maximum transmission powers allowed for each of the available channels from an enabling station, wherein the enabling station is a station determining the available channels at its location using its own geographic location identification and a regulatory database access capability; and scanning the existing networks on the available channels identified within the received WSM. | 08-01-2013 |
20130205313 | Method and Apparatus for Transmitting and Receiving a Measured Report Frame in a Wireless Local Area Network System - A method of transmitting and receiving a measurement report frame in a wireless local area network (WLAN) is disclosed. A method of transmitting a measurement report frame form a first station to a second station in a regulatory domain where a licensed device and an unlicensed device are permitted to operate together in a wireless local area network (WLAN) comprising: receiving, at the first station, a measurement request frame from the second station; and transmitting, to the second station, the measurement report frame including a Primary Service Signal Map field indicating which TV channels are occupied by a primary service signal, wherein the primary service signal is a signal that requires protection by regulation. | 08-08-2013 |
20130231108 | Method and Apparatus for Operating Within White Space Band Using Message Indicating Whether Available Channel Information is Valid in Wireless System - A method and apparatus for operating within a white space band using a message indicating whether an available channel information is valid in the wireless system are disclosed. In a method for a first station (STA) to operate as an unlicensed device which is permitted to operate on an available channel within a White Space (WS) band of a wireless system, comprises: receiving a message indicating whether an available channel information of the first STA is valid from a second STA, wherein the available channel is a channel not used by a licensed device, wherein the message includes a Map ID of a current valid available channel information; and determining whether an existing available channel information of the first STA is valid by comparing a Map ID of the existing available channel information of the first STA with the Map ID included in the received message. | 09-05-2013 |
20130258994 | Method and Apparatus for Transmitting Channel Information in Cognitive Radio Network and Method and Apparatus for Performing Channel Switching - A method and apparatus for transmitting channel information used by a station form among TV white space channels, and a method and apparatus for performing channel switching are disclosed. A method for transmitting information of a channel used by a station from among TV white space channels includes determining one or more channels used by the station from among channels contained in a plurality of OFDM blocks, wherein each OFDM block includes one or more contiguous channels from among the TV white space channels, generating a message including first information indicating the lowest channel number from among channels contained in a first OFDM block from among the plurality of OFDM blocks, second information indicating the lowest channel number from among channels contained in a second OFDM block, third information indicating the one or more channels used by the station as bitmap information, and fourth information indicating a total amount of bandwidth used by the station, and transmitting the generated message. | 10-03-2013 |
20130294436 | METHOD AND APPARATUS FOR TRANSCEIVING A CONTACT VERIFICATION SIGNAL IN A WIRELESS COMMUNICATION SYSTEM - The present document related to a method and apparatus for transceiving a signal capable of verifying the validity of an available channel in a wireless communication system. According to the present invention, a scheme for transceiving available channel information, a scheme for requesting/responding to a channel validity inquiry, and a scheme for transceiving a contact verification signal are provided, and accordingly, a scheme for supporting the accurate and efficient operation of an unlicensed device while protecting a licensed device in a whitespace band is provided. | 11-07-2013 |
20130308577 | METHOD AND APPARATUS OF OPERATING CHANNEL REQUEST AND RESPONDING TO THE OPERATING CHANNEL REQUEST IN A WIRELESS LOCAL AREA NETWORK SYSTEM - A method for operating channel request and responding to the operating channel request in a wireless local area network (WLAN) is disclosed. A method of operating channel request by a first station in a regulatory domain where an unlicensed device is permitted to operate at a given time in a given geographical area with regard to a licensed device in a wireless local area network (WLAN) comprises transmitting, to a second station, first frame including a first operating class field and a first channel number field, wherein the first operating class field indicates a number of an operating class of a first channel included in a first channel set for operating channel request and the first channel number field indicates a number of the first channel; and receiving, from the second station, second frame including a second operating class field and a second channel number field, wherein the second operating class field indicates a number of a operating class of a second channel included in a second channel set granted by the second station and the second channel number field indicates a number of the second channel. | 11-21-2013 |
20140044073 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING CHANNEL INFORMATION IN WIRELESS COMMUNICATION SYSTEM - One embodiment of the present invention relates to a method for transmitting channel information in a wireless communication system. Disclosed is method for transmitting channel information, comprising the steps of: generating a frame which includes an operating class field and a channel number field; and transmitting the generated frame, wherein the channel number field indicates a number of a wireless local area network (WLAN) channel allocated according to available channel information. | 02-13-2014 |
20140045514 | CHANNELIZATION METHOD IN WHITESPACE BAND AND APPARATUS FOR THE SAME - A wireless communication system is disclosed. Specifically, a channelization method in a whitespace band and an apparatus for the same are disclosed. A method for providing whitespace operation information includes transmitting, by a first station (STA) to a second STA, a frame including a TV whitespace high throughput (TVHT) operation information field. The TVHT operation information field includes primary channel number, channel width, channel center frequency segment 0 and channel center frequency segment 1 subfields. A channel center frequency of frequency segment 0 or frequency segment 1 is determined based on a channel start frequency. The channel start frequency is determined as a function of a TV channel index corresponding to the frequency segment 0 or a TV channel index corresponding to the frequency segment 1. | 02-13-2014 |
20140126503 | METHOD FOR TRANSMITTING/RECEIVING A SIGNAL IN A WIRELESS COMMUNICATION SYSTEM - According to an embodiment of the present invention, a method of transmitting/receiving a signal of a device using a non-licensed band in a wireless communication system includes: receiving available channel information by a first type device; and determining a first channel for transmitting a signal from the first type device to a second type device, and a second channel for receiving a signal from the second type device, among the available channels. | 05-08-2014 |
20140146804 | METHOD AND DEVICE FOR OFFERING DATABASE ACCESS IN WIRELESS COMMUNICATION SYSTEM - The present invention relates to a wireless communication system, and more specifically, to a method and device for offering database access. According to one embodiment of the present invention, a method in which a first station (STA) accesses a database (DB) through a second STA includes the steps of: receiving a beacon or enabling signal in a first STA, operating as a dependent STA, from a second STA, operating as an enabling STA; operating a link setup of the second STA; and accessing the DB through a link with the second STA. | 05-29-2014 |
20140274106 | METHOD AND APPARATUS FOR DYNAMIC STATION ENABLEMENT PROCEDURE IN A WIRELESS LOCAL AREA NETWORK SYSTEM - A method of dynamic station enablement procedure in a wireless local area network (WLAN) is disclosed. A method of performing an enablement procedure by a first station in a regulatory domain where a licensed device and an unlicensed device are permitted to operate together in a wireless local area network (WLAN) comprises receiving, from a second station, an enabling signal including advertisement protocol element with an advertisement protocol identification (ID) field which indicates an advertisement protocol the second station supports; and exchanging DSE (dynamic station enablement) related messages with the second station using a GAS (generic advertisement service) protocol. | 09-18-2014 |
20140307634 | Method and Apparatus of Converting TV Channels into WLAN Channels in a Wireless Local Area Network System - A method of converting TV channels into WLAN channels in a wireless local area network system (WLAN) is disclosed. A method of converting TV channels into WLAN channels at an apparatus comprising receiving WSM including a list of available TV channels and finding out a center frequency of each of first WLAN channels which exist on frequency area of the available TV channels using TV channel bandwidth, WLAN channel bandwidth and a starting frequency of each of the available | 10-16-2014 |
20140376474 | METHOD FOR SETTING OPERATING CHANNEL IN WHITE SPACE BAND AND DEVICE THEREFOR - Disclosed are a method for setting an operating channel in a white space band and a device therefor. Particularly, a method for enabling a first device to set an operating channel in a white space band comprises the steps of: acquiring information on an available TV channel from a geo-location database; and setting an operating channel on the basis of the information on the available TV channel, wherein a center frequency of the operating channel can be set differently according to a TV channel used by an incumbent device among TV channels adjacent to the TV channel on which the operating channel is set. | 12-25-2014 |
20150024798 | Method and Apparatus of Transmitting a White Space Map Information in a Wireless Local Area Network System - A method of transmitting a White Space Map information in a wireless local area network system (WLAN) is disclosed. A method of transmitting a white space map information from a first station to a second station in a regulatory domain where a licensed device and an unlicensed device are permitted to operate together in a wireless local area network (WLAN) comprises acquiring a first list of available channels at each location of a plurality of locations from a regulatory database; determining a second list of available channels at a white space zone (WSZ) using the first list of available channels at each location of a plurality of locations; and transmitting, to the second station, one of a beacon frame, a probe response frame and a white space map announcement frame comprising a white space map (WSM) element, the WSM element including information of the WSZ and the second list of available channels, wherein the WSZ is a geographical area in which commonavailable channels are set. | 01-22-2015 |
20150036572 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING POWER SAVE-POLLING FRAME AND RESPONSE FRAME IN WIRELESS LAN SYSTEM - A method and apparatus for transmitting and receiving a power save-polling (PS-Poll) frame and response frame in a wireless LAN (WLAN) system are disclosed. The method for transmitting a frame by a station (STA) in a wireless LAN (WLAN) system includes awakening at a predetermined time, and transmitting a Power Save (PS)-Poll frame to an access point (AP); and receiving information in response to the PS-Poll frame from the access point (AP), wherein information indicating an access category (AC) of the PS-Poll frame is provided from the access point (AP) to the station (STA). | 02-05-2015 |
20150078309 | METHOD AND APPARATUS FOR A STATION TO OPERATE WITHIN WLAN SYSTEM - Methods and apparatuses for a specific station, operating as a non-AP (Access Point) station permitted to operate within available channels not used by a licensed device, to operate as an AP station in a Wireless Local Area Network (WLAN) are disclosed. A specific protocol related to a registration of a station's location to operate within a white space id defined whose Information IDs comprises a registration request and a registration response. Using the defined registration request and registration response, the station can register its geographical location with a Registered Location Server (RLS), and operate as an AP STA within WS. | 03-19-2015 |