Patent application number | Description | Published |
20130039315 | METHOD FOR EFFICIENT CHANNEL USE - According to one embodiment of the present invention, a method for efficient channel use is disclosed. The channel use method may comprise the steps of: selecting a specific channel from channels configured to be shared along with a homogeneous or heterogeneous communication scheme; and performing an interference avoidance procedure if the selected channel interferes with a neighboring access point. The avoidance procedure may comprise one or more of a process of making a request to switch a channel of the neighboring access point, a process of notifying to the neighboring access point, and a process of changing the selected channel into another channel. | 02-14-2013 |
20130059588 | METHOD FOR SWITCHING SERVICE OF MANAGEMENT DEVICE SERVING NETWORK OR DEVICE - Disclosed is a method for smoothly switching between services to allow networks or devices to coexist. The method of switching between services of a television band device (TVBD) network or device includes: receiving a request for switching between services of the TVBD network or device from a coexistence manager (CM); and transmitting a response with respect to the request to the CM, wherein the services include an information service obtaining, by the TVBD network or device, neighbor information of the TVBD network or device from the CM and a management service providing measurement results to the CM by the TVBD network or device, and the response includes an indicator indicating whether or not the request has been successfully processed. | 03-07-2013 |
20130090145 | METHOD FOR CONTROLLING RANDOM ACCESS FOR THE EFFICIENT SENSING OF THE COOPERATIVE SPECTRUM IN A COGNITIVE RADIO-BASED FREQUENCY RESOURCE SHARING SYSTEM - An embodiment of the present invention relates to a method for performing spectrum sensing to detect a signal for a terminal of a primary user in each sensing node. The method for performing sensing may comprise the steps of: performing, by the sensing node, spectrum sensing to detect a signal for a terminal of a primary user; computing, by the sensing node, a local test statistic on the basis of the result of the spectrum sensing; calculating, by the sensing node, the transmission probability on the basis of the computed local test statistic; and transmitting, by the sensing node, sensing information to a convergence center on the basis of the calculated transmission probability. In this case, the convergence center can determine whether the signal for a primary user exists on the basis of the transmitted sensing information. | 04-11-2013 |
20130117402 | METHOD FOR SELECTING A MASTER DEVICE IN A COEXISTENCE SYSTEM - Disclosed is a method of selecting a master device for coexistence, the method comprising: identifying devices to be used in at least one network capable of coexisting without cooperation; selecting a master device among the identified devices; and controlling, by the master device, other network and device. | 05-09-2013 |
20130155995 | METHOD OF MAKING A COEXISTENCE DECISION ON CENTRALIZED TOPOLOGY - Disclosed is a radio technology independent method for coexistence among dissimilar or independently operated TV Band Device (TVBD) networks and dissimilar TV Band Devices. A resource allocation method on centralized topology is disclosed, which comprises steps of receiving at least one available resource; performing a neighbor set calculation based on the received at least one available resource; calculating the resource according to the neighbor set calculation, where the calculated resource is allocated to at least one device. | 06-20-2013 |
20130155998 | METHOD OF CONSTRUCTING A COEXISTENCE PROTOCOL MESSAGE - Disclosed is a radio technology independent method for coexistence among dissimilar or independently operated TV Band Device (TVBD) networks and dissimilar TV Band Devices. A coexistence protocol message construction method is disclosed, which comprises steps of generating the coexistence protocol message with a format having a coexistence header field, an information type field, and a payload field, where the information type field differentiates type of the coexistence protocol message. | 06-20-2013 |
20130157681 | METHOD OF MAKING A COEXISTENCE DECISION ON DISTRIBUTED TOPOLOGY - Disclosed is a radio technology independent method for coexistence among dissimilar or independently operated TV Band Device (TVBD) networks and dissimilar TV Band Devices. A resource allocation method on distributed topology is disclosed, which comprises steps of receiving at least one available resource; performing a neighbor set calculation based on the received at least one available resource; calculating the resource according to the neighbor set calculation, where the calculated resource is negotiated among a plurality of coexistence manager (CM) entities and the resource is allocated to at least one device after the negotiation by the coexistence manager (CM) entities. | 06-20-2013 |
20130157706 | METHOD OF MAKING A COEXISTENCE DECISION ON HYBRID TOPOLOGY - Disclosed is a radio technology independent method for coexistence among dissimilar or independently operated TV Band Device (TVBD) networks and dissimilar TV Band Devices. A resource allocation method on Hybrid topology is disclosed, which comprises steps of receiving at least one available resource; performing a neighbor set calculation based on the received at least one available resource; calculating the resource according to the neighbor set calculation; receiving at least one channel list set from each of the coexistence manager (CM) entity; determining whether there is any conflict channel list set among the received channel list set, and either transmitting a confirmation message or a channel list set changing request message to CM entity based on the determination result. | 06-20-2013 |
20130295947 | METHOD FOR DETECTING A NETWORK OR DEVICE AND A NEIGHBOR THEREOF - Provided is a method for detecting a network or device and a neighbor thereof, in order to detect networks or devices which substantially interfere with each other and to manage resources in consideration of the substantial interfering relationships so that the networks or devices can efficiently coexist. To this end, according to an embodiment of the present invention, a method for detecting a neighbor of a television band device (TVBD) network or device comprises the steps of: transmitting a request to a coexistence manager which serves the TVBD network or device; and receiving neighbor information on the TVBD network or device in response to the request, wherein the neighbor information includes an identifier of a neighbor TVBD network or device which interferes with the TVBD network or device, and the neighbor information is based on operating channels of the TVBD network or device and the neighbor TVBD network or device. | 11-07-2013 |
20140018114 | METHOD FOR SWITCHING SERVICE OF MANAGEMENT DEVICE SERVING NETWORK OR DEVICE - Disclosed is a method of switching between services of a television band device (TVBD) network or device of an apparatus including a coexistence manager (CM), including: transmitting, by the CM, a request for switching between services of the TVBD network or device to the TVBD network or device; and receiving, by the CM, a response with respect to the request from the TVBD network or device. Here, the services include an information service obtaining neighbor information from the CM by the TVBD network or device and a management service providing measurement results to the CM by the TVBD network or device, and the response includes an indicator indicating whether or not the request has been successfully processed. | 01-16-2014 |
20140038657 | RESOURCE ALLOCATION IN A COEXISTENCE SYSTEM - One embodiment disclosed in the present description relates to a coexistence manager which can adaptively select channels in a coexistence environment between disparate systems with channel use constraints that inherently exist with use of TVWS. Accordingly, the embodiment disclosed in the present description provides a resource allocation method for a manager device, comprising the steps of: receiving a channel allocation request from a first network or device; determining a second network or device for switching channels based on the benefits of each channel or device, if a channel cannot be assigned to the first network or device; switching the channel used by the second network or device to another channel and raising its priority; and assigning the channel used by the second network or device to the first network or device. | 02-06-2014 |
20140066086 | FREQUENCY BAND DETERMINATION METHOD IN COEXISTENCE SCHEME - According to one embodiment of the present invention, provided is a frequency band (FB) determination method of a wireless access device which provides an access point to enable one or more terminals to wirelessly access a network. The method may comprise the steps of receiving database-related information from database servers which have database related to unused FBs of a television broadcasting band (TVBB), determining a database server to be accessed among the database servers on the basis of the database-related information, requesting the determined database server and receiving information on available FBs, and determining FBs, among the received operating FBs, for the one or more terminals. The operating FBs are determined by the database server so that the wireless access device can coexist with a neighboring homogeneous or heterogeneous wireless access device without mutual interference within the TVBB. | 03-06-2014 |