238 results about "IMT Advanced" patented technology

A secure and modular architecture for monitoring and controlling clusters of pay entertainment and gaming devices. The architecture allows flexible and secure use of state-of-the-art multimedia and Internet technologies to attract the younger player generation used to flashy and networked games. Cash or cash-less entertainment and gaming devices are supported.

The invention relates to the field of IMT-Advanced, in particular to a base station assisted method for discovering equipment in a D2D communication system. According to the base station assisted method for discovering the equipment in the D2D communication system, based on a request signaling sent to an eNB by UE requesting for being discovered, a resource block is distributed and reused by UE with location information capable of being obtained and UE with location information not capable of being obtained by means of different methods under the condition that resource reutilization and distribution is not needed and under the condition that resource reutilization and distribution is needed. The base station assisted method for discovering the equipment in the D2D communication system has the advantages that the resource reutilization degree is controlled reasonably, interference and collision are reduced, and sizable number of equipment can be discovered within a certain period of time.

The invention discloses a multi-band frequency spectrum aggregating wireless transmitter-receiver device which is characterized in that multi-band simulating radio frequency front ends are aggregated; different radio frequencies are divided into 20 MHz and 60 MHz processing frequency bands; analog-to-digital conversion while receiving a base-band signal and digital-to-analogue conversion while sending are performed in low and intermediate frequencies; and a signal treatment relative to a base-band NC-OFDM modulation-demodulation is performed by a sending base-band processing channel and a receiving base-band processing channel which are dynamically arranged. The invention solves the problem that the prior mobile communication terminal cannot work in multi-band at the same time during the communication process and only can use continuous frequency spectrums. The frequency spectrum aggregating function of the transmitter-receiver device realizes a data rate required by an IMT-Advanced system.

A method and apparatus enables advanced signal processing in a wireless local area network (WLAN). First and second WLAN transceivers are provided with advanced signal processing capabilities. A maximum interframe period between data and an acknowledgement is required by the WLAN for compatibility. A duration of the interframe period is shorter than a duration that is required to perform the advanced signal processing. The first WLAN transceiver transmits a header and data. A first data field in the header is specified that enables the advanced signal processing. A second data field is specified that defines a data time period and an extension time period. The first WLAN transceiver transmits data during the data time period and dummy data during the extension time period. The second WLAN transceiver receives the header and initiates receiver processing during the extension time period.

The invention relates to a generation and capture system of an encrypted frame hopping spread spectrum signal of an air fleet link, belonging to the technical field of aeronautical data link and radio navigation. The invention discloses a system framework of an encrypted frame hopping spread spectrum signal generation and capture method which can be implemented on a digital signal processor (DSP)and a FPGA (field programmable gate array) of a circuit board, and provides a baseband signal generation algorithm of an encrypted frame hopping spread spectrum system to replace a traditional long periodic sequence spread spectrum code and a compound pseudo code by absorbing the advantages of the easy capture of the compound pseudo code and the difficult breaking of the long periodic sequence spread spectrum code; and meanwhile, the invention provides two advanced and high-performance encrypted frame hopping spread spectrum signal capture algorithms, i.e. a frequency domain parallel capture method of the encrypted frame hopping spread spectrum signal of based on a FFT (fast fourier transform algorithm) and a direct capture method of the encrypted frame hopping spread spectrum signal based on a matching filter and the FFT. The invention solves the problem of difficult capture of the traditional long periodic sequence spread spectrum code. The method can be widely applied to satellite navigation receivers, range measurement systems and communication systems based on a quiescent carrier modulation direct sequence spread spectrum system.

The related adaptive sensor network control system based on multiprotocol communication embedded module structure is self diagnosis, self maintenance and self management. The architecture merges the advanced network and micro-structure software technology, forms the 'micro-structure sensing and controlling integration' mode, belongs to new running mode, new networking mode, and new theory application, and enables the sensor network replace computer network in many fields hopefully.

A solution comprising cost-effective methods and techniques for upgrading a traditional vending machine to a state-of-the-art vending machine with one or more of: mobile phone payment, telemetry, remote adjustment, graphical user interface, advertisement, intelligent energy management, hardware abstraction layer with common Application Programming Interface. A key aspect of this invention is that the original Vending Machine Controller board is not replaced in the vending machine and will still perform the normal vending operations as before. Another aspect of this invention is that the additional features are added to the vending machine at the processor level of the VMC board, by removing the original microcontroller on the VMC board and replacing it with an FPGA board or an electronic board, that can be plugged in the existing microcontroller socket on the VMC board, giving the application miming on the FPGA board or the electronic board access to all elements connected to the vending machine controller. The present invention uses In-Circuit Emulation techniques, modified emulated microcontroller peripherals, an emulated switch matrix circuit or a generic processor to add additional features to the vending machine at the processor level of the VMC board. The methods and techniques of the invention can be used to provide an abstraction layer above the underlying vending hardware with a common Application Programming Interface for controlling and monitoring the upgraded vending machine, to nm common interactive applications on different vending machine brands and types.

The invention discloses an intelligence education E-card system platform based on internet of things and cloud computation. The platform comprises an IaaS (Infrastructure as a Service) unit, a PaaS (Platform as a Service) unit, an SaaS (Software as a Service) unit, a data collector and a sensing terminal, wherein the IaaS unit is responsible for transferring and processing information obtained by a sensing layer by using infrastructure as service; the PaaS unit makes up a comprehensive service platform with RFID (Radio Frequency Identification) and the data communication technology by using cloud computation as a fundamental platform; the SaaS unit supports a plurality of front-end browsers and is connected to the infrastructure through connectivity access points by adopting industry-advanced technical standards and technical specifications and adopting an SOA (Service-Oriented Architecture) system structure; the data collector supports a plurality of communication protocols, applies to a plurality of communication modes, adopts an I/O (Input/Output) model-IOCP (I/O Completion Port) mode, and uses threads for pool-processing asynchronous I/O requests; and the sensing terminal comprises a POS (Point-of-Sale) machine, a building machine, a recognizing machine, multimedia, a channel machine, a vehicle-mounted machine, a water controller and other specific-purpose terminal equipment.

The invention relates to a method for multiplexing a control channel of a relay station in an orthogonal frequency division multiplexing system, which is suitable for a 3GPP long-term evolution system and an ultra 3G system IMT-advanced. The method comprises the following steps that: when the relay station (RS) is a non-transparent RS, downlink control information and data services among a base station (BS), the non-transparent RS and a user terminal (UT) are sent out on a downlink control channel in a frequency division multiplexing (FDM) mode, a time division multiplexing (TDM) mode or a hybrid division multiplexing (HDM) mode, and the HDM mode is a multiplexing mode combining the TDM and the FDM; and when the RS in the system is a transparent RS, the downlink control information between the BS and the transparent RS as well as the downlink control information and the data services between the BS and the UT are sent out on the downlink control channel in the FDM mode, the TDM mode or the HDM mode.

The invention discloses a base station antenna that is applied to an international mobile telecommunication-advanced (IMT-Advanced) system of a fourth generation wireless mobile communication system. The antenna unit employs a mode of multi-layer microstrip paster antenna and a basic structure of the antenna comprises a metal reflecting plate, a microstrip feeding layer, two radiating layers and a plurality of nylon insulating columns. The greatest innovation of the invention lies in an ultrabroad band characteristic of the antenna; a novel arrowhead coupling feeding groove and a double-layer radiation patch are employed; and a bandwidth can reach 49.5% on the condition that a standing-wave ratio is less than 1.5. On the basis of a reasonable design of a reflecting plate, a half-power lobe width of the antenna is a value caused by adding 6 degrees to 65 degrees or by subtracting 6 degrees from 65 degrees in a whole working frequency band range; and a convergence degree of a wave beam of the antenna has a good performance. According to the invention, a corner feeding mode is employed to carry out feeding and a dual polarization with plus/minus 45 degrees is realized on the condition that it is avoided that a radiation patch is rotated by 45 degrees, so that it is beneficial to reduce a whole length of an antenna array after arrangement of the array. On the basis of the basic structure that is based on the technical scheme of the invention, other concrete embodiments of the invention can be constructed only by reasonably changing a size of a radiation patch, a shape of a slotted floor and spaces between all layers.

The invention relates to a cross-layer design method for downlink resources in D2D (device-to-device) technology sharing system, in particular to a method and an algorithm for allocation and scheduling cross-layer resources in downlink resources of a cellular subscriber multiplexing cellular system with D2D terminals in an IMT-Advanced (international mobile telecommunications-advanced) system. A considered system model comprises an intra-cell application scenario and an inter-cell application scenario. D2D subscribers existing in a wireless cellular network system in the form of self-organization and cellular network subscribers co-exist in the form of underlay and share the same downlink radio resources (including channels, timeslot, power and space). Allocation and scheduling on the resources are discussed to solve the problems of interference coordination and suppression. The intra-cell application scenario and the inter-cell application scenario are considered respectively, common features of the different application scenarios are found, and personality factors of the different application scenarios are also considered. For characteristics of a D2D and cellular network system, the defects in existing resource allocation schemes are overcome and the resource-based cross-layer optimization, allocation and scheduling method is provided.

The invention provides a method for indicating downlink resource allocation. The method comprises that: after a network side allocates a downlink resource for a user side according to the requirement of the user side by centralization, full decentralization or partial decentralization, the allocation mode of the downlink resource is indicated by a tree structure, a permutation and combination mode or a resource block subset mode correspondingly. By the method, all situations of RB allocation in the full decentralization mode and centralization mode can be indicated, meanwhile, most situations of the RB allocation in the partial decentralization mode can be indicated. Furthermore, when bandwidths in an LTE (long term evolution) system and an IMT-Advanced (advanced international mobile telecommunication) system are larger, under a condition of not reducing the dispatch flexibility, signaling cost of resource allocation can be reduced to a certain extent.

The invention relates to a wireless communication command system for an emergency rescue scene. The system comprises a scene information acquisition and wireless transmitting portable device, a multi-frequency point wireless access and transmitting device, a wireless receiving device and scene information processing equipment, wherein the wireless receiving device is connected with the scene information processing equipment and directly receives signals transmitted by the scene information acquisition and wireless transmitting portable device; and the multi-frequency point wireless access andtransmitting device is connected with the wireless receiving device, receives the signals transmitted by the scene information acquisition and wireless transmitting portable device, and forwards the received signals to the wireless receiving device. The system can realize wireless audio and video command of a disaster scene aiming at a complex environment, fuse audio, video and data transmission together by using the international advanced wireless communication technology, avoid wireless shielding problem under the complex environment by adopting the advanced mobile relay idea, prolong the length of an information communication link, and strengthen the wireless signal intensity.

The invention relates to a detecting method of water environment pollution source based on wireless sensor networks. The technical scheme is that, firstly, n sensor nodes are uniformly arrayed in a to-be-detected water environment area, the sensor nodes are all connected with a sink node in a wireless multi-hop method, the sink node is wirelessly connected with a gateway, and the gateway is connected with a data management center through a data wire; a management software is mounted in the data management center and includes a detecting module and a positioning module of the water environment pollution source; and finally, as long as the collected data of the sensor nodes is substituted into the detecting module and the positioning module of the water environment pollution source by the management software of the data management center, the pollution source can be detected and the position coordinates of the pollution source can be calculated. Therefore, the invention has the advantages of simplicity and convenience for carrying out, high precision, strong operability, low cost and short-time efficiency, and provides a more advanced method for the actual detecting and positioning of the water environment pollution source.

The invention is a method and system for detecting attackers that are interested in attacking an organization's infrastructure during the reconnaissance phase of an Advanced Persistent Threat (APT). APTs are very sophisticated attacks and incorporate advanced methods for evading current security mechanisms. Therefore, the present invention uses an innovative social network honeypot.

The invention discloses a terminal access method. The terminal access method comprises the following steps that: a base station configures and determines the specific composition structures of uplink and downlink subframes of a frame structure according to a cyclic prefix of a mobile communication system and sends the composition structure information of the uplink and downlink subframes to a terminal through a broadcasting message; and the terminal selects a particular uplink subframe to send the access information to the base station according to the composition structure information of the uplink and downlink subframes, wherein the frame structure comprises one or more downlink subframes and one or more uplink subframes. Each downlink subframe and each uplink subframe are formed by one or more basic subframe units and an idle time slot respectively. The method can meet the requirements of the IMT-Advanced on the systematic performance.

The invention discloses a building engineering project multi-organization coordination management cloud platform based on a BIM technology, and the platform enables the communication of all participants of a project to be built on the basis of the real-time updating of a drawing, a BIM model, a document and an industry file through the integration of project task management, flow management and function management. The working modes of information sharing, responsibility tracing, result synchronization, cooperation and parallelism are achieved. An advanced computer technology, an electronic information technology, a cloud computing and the like are adopted, a BIM model is used as a carrier, industry big data is used as a support, and an intelligent, lean and efficient management mode is constructed, so that the controllability of project quality, construction period and construction cost is improved, project risks are reduced, coordination of design and construction is achieved, projects are comprehensively controlled, construction site conditions are mastered in real time, and project value maximization is achieved through neutral and flexible platform management.

The invention relates to an MES system based on intelligent manufacturing management. The system comprises a management layer, an execution layer and an industrial control layer, the management layercomprises a planning layer information system, a centralized control center used for integrating information, KPI indexes used for organization internal management, a mobile APP used for information watching, recording and management, a material analysis platform, a man-machine analysis platform, a yield analysis platform and a tracing platform used for retrieving the output end of a data source.The execution layer comprises a plan schedule; production scheduling elements, plan making, plan decomposition, rule verification, plan adjustment and plan release are arranged in the plan schedule, the output end of the plan schedule is provided with material management, production execution, quality control, equipment management and resource management, and the material management is correspondingly provided with warehouse location modeling for building a storage place according to the production capacity. The system has the advantages that advanced visual monitoring is achieved, real-time information of a warehouse and a factory is reflected in time, field equipment is connected to the Internet to achieve intelligent control, and the system is simple and efficient.

The invention discloses a broadband multi-frequency omni-directional array antenna which is mainly used for solving the problem that the existing omni-directional array antenna has narrow frequency band and is easy to be affected by the surrounding environment. The broadband multi-frequency omni-directional array antenna comprises a medium material plate (1), radiation units (2), a radiation floor (3) and a feed network (4), wherein the radiation units of the array antenna and the radiation floor of the array antenna are printed on one side of the medium material plate (1), the feed network is positioned on the other side of the medium material plate (1), each radiation unit (2) forms an arm-shaped symmetric dipole structure by an index curve aebx and a broken line, all the radiation units are placed by adopting the way of placing the radiation units in the forward direction and the reverse direction alternately or placing the one half of the radiation units in the forward direction and placing the other half of the radiation units in the reverse direction according to the sequence, the feed network adopts the shunt-feed feed way, and all the radiation units are respectively coupled and excited through a balun on a shunt-feed feed network. The broadband multi-frequency omni-directional array antenna has the advantages of broadband, multi-frequency and omni-directional performance, and can be used as the omni-directional array antenna in an IMT-Advanced system in the field of mobile communication.