Abstract: Embodiments of the invention relate to low-cost and low-complexity mesh routing method to provide connectivity within a channel-diverse mesh network in which there is no common channel available for the whole network and in which a single transceiver is provided in each node. The mesh routing method includes a procedure for flooding radio resource maps (RRMs), a procedure for determining the operating channel for each mesh node device, a routing procedure for establishing a route for a pair of source device and destination device, and a maintenance procedure for repairing routes and optimize selection of operating channel.

Abstract: A spectrum information query system, a method of querying a database storing spectrum information and a secured query proxy device are provided, the spectrum information query system comprising a database storing spectrum information; one or more spectrum utilising devices forming a first communications network; and a secured query proxy device, the secured query proxy device configured to communicate at its front-end with the database storing spectrum information, wherein the secured query proxy device is configured at its back-end for a one-way downlink to the first communications network; a decoupled source that is decoupled from the first communications network, the source being coupled to the secured query proxy device, wherein the secured query proxy device is configured to obtain information associated with the first communications network via the decoupled source, the secured query proxy device being further configured to perform encryption of obtained information associated with the first communicati

Abstract: A spectrum information query system, a method of querying a database storing spectrum information and a secured query proxy device are provided, the spectrum information query system comprising a database storing spectrum information; one or more spectrum utilising devices forming a first communications network; and a secured query proxy device, the secured query proxy device configured to communicate at its front-end with the database storing spectrum information, wherein the secured query proxy device is configured at its back-end for a one-way downlink to the first communications network; a decoupled source that is decoupled from the first communications network, the source being coupled to the secured query proxy device, wherein the secured query proxy device is configured to obtain information associated with the first communications network via the decoupled source, the secured query proxy device being further configured to perform encryption of obtained information associated with the first communicati

Abstract: A low-profile wideband monopole antenna is provided. The antenna may include a radiating element configured in a bent monopole arrangement to provide a vertical polarization such that an omni-directional radiating characteristic is achieved. The radiating element may include a plurality of slots formed at or edged from each side of the radiating element to increase the effective current path length of the radiating element. The antenna may include a feed and a feeding structure extending from the radiating element to the feed. The antenna may further include a ground plane. The radiating element may be arranged substantially parallel to the ground plane. The surface area of the radiating element may be smaller than the ground plane.

Abstract: A low-profile wideband monopole antenna is provided. The antenna may include a radiating element configured in a bent monopole arrangement to provide a vertical polarization such that an omni-directional radiating characteristic is achieved. The radiating element may include a plurality of slots formed at or edged from each side of the radiating element to increase the effective current path length of the radiating element. The antenna may include a feed and a feeding structure extending from the radiating element to the feed. The antenna may further include a ground plane. The radiating element may be arranged substantially parallel to the ground plane. The surface area of the radiating element may be smaller than the ground plane.

Abstract: Embodiments of the invention relate to low-cost and low-complexity mesh routing method to provide connectivity within a channel-diverse mesh network in which there is no common channel available for the whole network and in which a single transceiver is provided in each node. The mesh routing method includes a procedure for flooding radio resource maps (RRMs), a procedure for determining the operating channel for each mesh node device, a routing procedure for establishing a route for a pair of source device and destination device, and a maintenance procedure for repairing routes and optimize selection of operating channel.

Abstract: Embodiments of the invention relate to method of operating television white space (TVWS) geo-location database (GLDB). The method comprises: embedding a plurality of data signals in a plurality of radio frequency (RF) broadcast signals of at least one existing television or radio channel, wherein the data signals comprise at least one of TVWS GLDB data, time reference data and broadcast transmitter data which comprises at least one of transmitter location data and transmitter identification; and transmitting, over a RF network which is other than an internet protocol (IP) network, the RF broadcast signals together with the embedded data signals to a plurality of white space devices.

Abstract: There is provided an Advanced Metering Infrastructure (AMI) system including a plurality of gate-ways interconnected by a network comprising a plurality of subnets based on one or more types of networking protocols, each of the plurality of gateways communicatively coupled to or integrated in a metering device; and a concentrator connected to the network for receiving metering data from the metering devices. The concentrator and the plurality of gateways each defines a communication node in the network. In particular, each of the gateways is configured to store a route information comprising at least a primary route information and is operable to route uplink data received based on the route information, the primary route information indicating a predetermined one of the communication nodes for the gateway to route the uplink data to next as a first priority.

Abstract: Embodiments of the invention relate to method of operating television white space (TVWS) geo-location database (GLDB). The method comprises: embedding a plurality of data signals in a plurality of radio frequency (RF) broadcast signals of at least one existing television or radio channel, wherein the data signals comprise at least one of TVWS GLDB data, time reference data and broadcast transmitter data which comprises at least one of transmitter location data and transmitter identification; and transmitting, over a RF network which is other than an interne protocol (IP) network, the RF broadcast signals together with the embedded data signals to a plurality of white space devices.

Abstract: There is provided an Advanced Metering Infrastructure (AMI) system including a plurality of gate-ways interconnected by a network comprising a plurality of subnets based on one or more types of networking protocols, each of the plurality of gateways communicatively coupled to or integrated in a metering device; and a concentrator connected to the network for receiving metering data from the metering devices. The concentrator and the plurality of gateways each defines a communication node in the network. In particular, each of the gateways is configured to store a route information comprising at least a primary route information and is operable to route uplink data received based on the route information, the primary route information indicating a predetermined one of the communication nodes for the gateway to route the uplink data to next as a first priority.

Abstract: The present invention is directed to a communication device of a wireless communication network, the communication device including a message generator configured to generate a beacon message having a traffic indication map (TIM) information element (IE), wherein the TIM IE includes a partial virtual bitmap field including at least one cluster; a determiner configured to determine for at least one cluster information indicating whether data is available in the communication device to be transmitted to a plurality of communication terminals of the wireless communication network; an encoder configured to determine an encoding mode for the information depending on the information and to encode the information based on the encoding mode; and a transmitter configured to broadcast the beacon message to the plurality of communication terminals corresponding to the at least one cluster.

Abstract: A compression device which may include: a subset determination circuit configured to determine a subset of a traffic indication map, the traffic indication map including a plurality of bits, each bit indicating whether data to be transmitted to a respective pre-determined radio communication terminal is present in an access point; a pre-determined bit value determination circuit configured to determine whether the subset includes a bit of a pre-determined bit value; and a compressed string generation circuit configured to insert, if the subset includes a bit of the pre-determined bit value, into a compressed string the subset and an indicator indicating that the subset includes a bit of the pre-determined bit value, and further configured to include, if the subset does not includes a bit of the pre-determined bit value, into the compressed string an indicator indicating that the subset does not include a bit of the pre-determined bit value.

Abstract: According to various embodiments, a spectrum coordination device may be provided. The spectrum coordination device may include: a memory configured to store working channel information indicating for each radio communication device of a plurality of radio communication devices information of at least one channel used by the respective radio communication device; a radio communication device information receiver configured to receive working channel update information of at least one radio communication device of the plurality of radio communication devices; a conflict determination circuit configured to determine whether there is a conflict of channels to be used by the plurality of radio communication devices based on the working channel information and the working channel update information; and a working channel information updating circuit configured to update the working channel information based on the determination of the conflict determination circuit.

Abstract: In various embodiments, a method for determining whether a signal includes a wanted signal may be provided. The method may include determining a frequency at which the signal has a signal energy above a first pre-defined signal energy threshold and determining whether the signal includes a wanted signal, based on whether the signal has a signal energy above a second pre-defined signal energy threshold in a pre-defined frequency range in a frequency neighborhood of the determined frequency.

Abstract: The present invention is directed to a communication device of a wireless communication network, the communication device including a message generator configured to generate a beacon message having a traffic indication map (TIM) information element (IE), wherein the TIM IE includes a partial virtual bitmap field including at least one cluster; a determiner configured to determine for at least one cluster information indicating whether data is available in the communication device to be transmitted to a plurality of communication terminals of the wireless communication network; an encoder configured to determine an encoding mode for the information depending on the information and to encode the information based on the encoding mode; and a transmitter configured to broadcast the beacon message to the plurality of communication terminals corresponding to the at least one cluster.

Abstract: A compression device which may include: a subset determination circuit configured to determine a subset of a transmission indication map, the transmission indication map including a plurality of bits, each bit indicating whether data to be transmitted to a respective pre-determined radio communication terminal is present in an access point; a pre-determined bit value determination circuit configured to determine whether the subset includes a bit of a pre-determined bit value; and a compressed string generation circuit configured to insert, if the subset includes a bit of the pre-determined bit value, into a compressed string an indicator indicating that the subset includes a bit of the pre-determined bit value and the subset and further configured to include, if the subset does not includes a bit of the pre-determined bit value, into the compressed string an indicator indicating that the subset does not include a bit of the pre-determined bit value.

Abstract: A method is provided for determining whether transmission signals are present in received signals, the method comprising: receiving a first signal via a first radio resource; receiving a second signal via a second radio resource; determining whether a first transmission signal is present in the received first signal based on the received second signal; and determining whether a second transmission signal is present in the received second signal based on the received first signal.

Abstract: In various embodiments of the present disclosure, there is provided a method for communication channel distribution in a telecommunications frequency spectrum including: reserving, for a predetermined geographical location, at least one communication channel accessible at the predetermined geographical location for priority communication; and providing access to the at least one communication channel reserved for priority communication when a priority request criteria is satisfied. A corresponding system for communication channel distribution is provided.

Abstract: A method for estimating the speed of a mobile device in a network is provided that includes selecting a correlation length from a plurality of possible correlation lengths. A correlation result is generated based on the selected correlation length. A speed estimate is generated for the mobile device based on the correlation result.

Abstract: In various embodiments, a method for determining whether a signal includes a wanted signal may be provided. The method may include determining a frequency at which the signal has a signal energy above a first pre-defined signal energy threshold and determining whether the signal includes a wanted signal, based on whether the signal has a signal energy above a second pre-defined signal energy threshold in a pre-defined frequency range in a frequency neighborhood of the determined frequency.