79 results about "Wireless network architecture" patented technology

Wireless network system including a plurality of base stations each configured to manage active links to mobile stations within a range; and a controller configured to control the base stations to provide at least two of the active links from two different base stations simultaneously to a given mobile station in integral manner for joint processing.

A network having an access service network (“ASN”) configured to provide full mobility to mobile stations located within a service area. The ASN includes a Layer 2 or data link layer network that is larger, incorporates more nodes, or carries more data communications than Layer 2 networks incorporated in prior art ASNs. Data communications to and from the mobile stations are routed inside the ASN across the Layer 2 network which transports the data communication using a Layer 2 protocol. If the network includes another ASN located adjacent to the first ASN, the two ASNs may communicate directly with one another over a Layer 2 connection. If the network includes another ASN that is not adjacent to the first, Mobile Internet Protocol components may be included in the ASNs and configured to provide mobility between ASNs.

A wireless discovery and communication mechanism to facilitate configuration, management and performance tasks associated with wireless network environments. In certain embodiments, access elements transmit and receive neighbor messages on a periodic basis to neighboring access elements. The neighbor messages can include configuration and / or protocol information to allow the access elements or associated devices to discover each other over the air. The present invention can be applied to a variety of wireless network architectures, such as a plurality of distributed, substantially autonomous access points, or to a hierarchical wireless network system comprising central control elements, each supervising and controlling one or more access elements as described more fully below.

An architecture for networked communications between a series of medical devices and a remote monitoring device. An interface circuit coupled to each medical device communicates with one of a plurality of relay modules via a wireless relay network. The relay modules communicate with the remote monitoring device over an internet-accessible wireless communication network. Each relay module includes a receiver coupled to the wireless relay network, a first transmitter coupled to the wireless relay network, a second transmitter coupled to the internet-accessible wireless communications network; and a controller. The controller determines a status of the internet-accessible wireless communications network. When the status indicates that the internet-accessible wireless communications network is accessible to the wireless relay module, the second transmitter is selected for transmitting medical device data. When the internet-accessible wireless communications network is not accessible, the first transmitter is selected for transmitting the data to another wireless relay module.

An officer communication system and method for providing a peer-to-peer mobile and wireless network software architecture which allows mobile units or clients, administrators, and / or dispatchers to communicate information that is pertinent to law enforcement, or related services. Such information includes text, images and / or audio. For example, such information can be indicative of an officer's or suspect's location (e.g., latitude, longitude, altitude, or intersection), speed and direction of travel, an officer's assignment details, national or local bulletins, the homeland security alert level, a “live” video feed, maps or directions, etc. In one embodiment, the system via a client user interface allows for the automatic readout of intersections during a chase, and the marking on maps of special locations (e.g. locations where evidence can be found).

A data communication network for providing dynamic routing through both wireless and wired subnetworks to support wireless communication devices and wired remote stations is disclosed. In the wireless network, the wireless communication devices can be mobile RF terminals, while the wired remote stations might be personal computers attached to a wired subnet, such as an ethernet coaxial cable. The wireless network architecture utilizes a spanning tree configuration which provides for transparent bridging between wired subnets and the wireless subnets. The spanning tree configuration provides dynamic routing to and from wireless communication devices and remote stations attached to standard IEEE 802 LANs.

Methods, apparatuses and systems enabling real-time analysis of coverage and other performance attributes of distributed or networked systems, such as wireless computer network environments. In one embodiment, the present invention utilizes information obtained from monitoring wireless communications in a wireless network system from remote client elements to access elements in relation to at least one attribute, such as signal strength and signal-to-noise ratio (SNR). Although the present invention has application to a variety of wireless network architectures, in one embodiment, the present invention is implemented in a wireless Local Area Network (WLAN) system having a hierarchical architecture comprising a central control element associated with at least one access element. The access element encapsulates data packets received from remote client elements including protocol and other information (such as attributes of the detected signal associated with the data packets), and tunnels the encapsulated data packets to the central control element. The central control element maintains and analyzes the information contained in the packets to analyze the coverage of the wireless network environment.

The invention discloses a method for implementing heterogeneous and collaborative transmission in a heterogeneous wireless network by using collaborative trunk nodes; one or more collaborative trunk nodes are arranged, and each of which is provided with two set of antenna modules; a base station implements an optimized selection of proper collections of the heterogeneous and collaborative trunk nodes respectively for each destination user terminal that needs trunking, selects and determines antennas with proper number for the uplink and the downlink of each terminal, thus being convenient for acquiring self-adaptive diversity and reuse gain; the emission power of each antenna is reasonably set by comprehensively considering the transmission characteristics of the uplink and the downlink, thus ensuring the balance between the transmission performance of the first-hop link and the second-hop link and optimizing the integrative performance of the system. Based on the sufficient consideration of the existing constructions of wireless network frameworks, the invention discloses two set of antennas creatively, which are respectively used as heterogeneous trunk nodes of two-hips link transmission for implementing heterogeneous transmission, thus having the advantages of simple and convenient operation, flexibility, practicability, less investment, good effectiveness and great application generalization prospect.

The invention relates to a novel radio network architecture, called G-RAN (green-radio access network) which realizes energy conservation and consumption reduction by re-designing the traditional network architecture in the further mobile communication network. Aiming at reducing the number of machine rooms of a base station, reducing energy consumption and improving spectrum efficiency, on the basis of the key technologies such as centralized base-band processing, virtual base station, base station coordination, dynamic network architecture and the like, and combining with resource sharing and network dynamic scheduling, the G-RAN is proposed to realize low-cost, high-bandwidth and high-flexibility operation. The radio network architecture introduces a series of new technologies and processes such as distributed base station, base station virtualization, centralized processing and the like, and promotes the improvement of energy utilization efficiency of the industry.

The invention discloses a software defined wireless network system architecture and method for LTE small base station ultra dense networking. The method comprises the following steps: a mobile terminal is accessed to an LTE small base station, wireless resources of the small base station is forwarded to an SDN controller of the data center through an SDN switch, the interface for mutual communication between the LTE small base station and the SDN controller controlled by the wireless network is a southbound interface API, and a northbound interface API can flexibly combine the functions in the controller according to different new service deployment requests. The SDN controller realizes the separation between the control surface and the data surface through a software defined mode, achieves the complete control of the wireless access network part, and achieves the division of the services of the core network; the system capacity of the wireless access network can be increased and the coverage of the wireless access network can be enhanced through interference coordination, load balancing and other technologies; and the internal flow table of the switch can be flexibly configured by monitoring the port of the SDN switch in the dense network, and thus the backhaul network can reach a load balancing state.

An architecture for networked communications between a series of medical devices and a remote monitoring device. An interface circuit coupled to each medical device communicates with one of a plurality of relay modules via a wireless relay network. The relay modules communicate with the remote monitoring device over an internet-accessible wireless communication network. Each relay module includes a receiver coupled to the wireless relay network, a first transmitter coupled to the wireless relay network, a second transmitter coupled to the internet-accessible wireless communications network; and a controller. The controller determines a status of the internet-accessible wireless communications network. When the status indicates that the internet-accessible wireless communications network is accessible to the wireless relay module, the second transmitter is selected for transmitting medical device data. When the internet-accessible wireless communications network is not accessible, the first transmitter is selected for transmitting the data to another wireless relay module.

The invention provides a wireless access point, a wireless network architecture, and a method for establishing the wireless network architecture. The method of the invention includes the following steps. First a first wireless access point and a second wireless access point are defined. Second a first function mode of the first wireless access point is set to be a router mode. Third a second function mode of the second wireless access point is set to be a wireless access point mode, a repeater mode or an adapter mode. Fourth a communication connection is established between the first wireless access point and the second wireless access point to perform a data exchange procedure. At last, a plurality of operational parameters of the second wireless access point are set by the second wireless access point itself according to the second function mode to finish the establishment of the wireless network architecture.

Wireless network system including a plurality of base stations each configured to manage active links to mobile stations within a range; and a controller configured to control the base stations to provide at least two of the active links from two different base stations simultaneously to a given mobile station in integral manner for joint processing.

A method and apparatus for transmitting a location service message between a location server and a mobile station or LMU in a GPRS wireless communications system. The location server generates a location service message and transmits the location service message to a base station subsystem; the base station subsystem forwards the location service message to a serving GPRS support node; the serving GPRS support node then forwards the location service message to a mobile station or LMU), passing transparently back through the base station subsystem. This approach to system routing of location messages allows existing circuit-switched wireless communications systems to support location services in a GPRS environment with a minimum of alterations to existing hardware and software protocols.

A wireless data network architecture supports both centralized mode operation and distributed mode operation. In the centralized mode, all of the Open Systems Interconnection (OSI) reference model data link layer, also known as layer 2, protocol functions are implemented within the radio access network control entity, such as at a base station controller (BSC) or similar network controller, before the data packets are delivered to one or more base station transceiver subsystems (BTSs). In the distributed mode, some of the layer 2 protocol functions are implemented at the BSC or similar network controller, and some of the layer 2 protocol functions are implemented at the BTSs. The data transmission is dynamically switched from one of the modes to the other as a function of various implementation-specific triggers.

A FAWNA that allows high-speed mobile connectivity by leveraging the speed of optical networks. Specifically, SIMO FAWNA, which comprises a SIMO wireless channel interfaced with a fiber channel through wireless-to-optical interfaces. Received wireless signal at each interface are sampled and quantized prior to transmission. The capacity of the FAWNA approaches the capacity of the architecture exponentially with fiber capacity. It is also shown that for a given fiber capacity, there is an optimal method of operating wireless bandwidth and number of interfaces. An optimal method to divide the fiber capacity among the interfaces is shown, which ensures that each interface is allocated a rate so that noise is dominated by front end noise rather than by quantization distortion. A method is also presented in which, rather than dynamically changing rate allocation based on channel state, a less complex, fixed rate allocation may be adopted with very small loss in performance.

The invention designs a smart service system (3S) of the Internet of things based on software definition. According to the system, a user is used as a center, business is used for driving, and a software definition mode is adopted, so as to construct the smart service system oriented to an application environment of the Internet of things. The smart service system is characterized in that for ubiquitous wireless network architecture and three software definition control platforms, i.e. a software definition service control platform, a software definition network control platform and a software definition terminal control platform, individual businesses, networks and terminals are customized for users through software according to business requirements of the users. A network function virtualization technique is introduced through the software definition control platforms, so that multidimensional resources are communicated, calculated and stored for integrated optimization, resource barriers of heterogeneous networks and different industries and departments are broken through, resource sharing is realized, and a network using the user as the center is established, so as to adapt to the development requirement of the Internet of things at last.

The embodiment of the invention discloses a data processing method and device and a system. In the data processing method and device and the system, corresponding transmission priority levels are obtained according to the data types of transmission data between a control panel and an evolution base station and then the transmission data are processed according to the transmission priority levels so that the significances of the transmission data are differentiated and processing of the transmission data can be arranged more reasonably and effectively, for example, more significant transmission data can be processed preferentially and the like. Therefore, the transmission processing wait time delay between the control panel and the evolution base station is reduced and thus the time delay of a whole control bearing separation wireless network framework is reduced and the performance of the whole control bearing separation wireless network framework is improved.

The invention discloses a disturbance control method based on distributed wireless network architecture. The method comprises the following steps of: receiving a broadcasting signal transmitted by a second receiving terminal through a first transmitting terminal, acquiring disturbance power which can be tolerated by the second receiving terminal, and calculating an upper limit value of the transmitting power, wherein the signals are transmitted in the upper limit value of the transmitting power so that the second receiving terminal is not disturbed. Meanwhile, the first transmitting terminal acquires a lower limit value of the required transmitting power of the first receiving terminal, in which the receiving signals are prevented from being disturbed. In addition, the invention also provides corresponding equipment and a system. By the method, equipment and system provided by the invention, the disturbance of a communication link to the receiving signals of other communication links is in an acceptable range, and the disturbance of the other communication links is avoided.

The invention discloses a WSN distributed type node positioning method based on DOA estimation. First a wireless network structure is established comprising a mobile anchor node and several randomly distributed target node to be positioned; target node adopts single antenna system; mobile anchor node is loaded in mobile carrier and acquires self position via GPS; second, anchor node corrects its multi-channel antenna as inphase state; third, array antenna of anchor node emits multiple mutually orthogonal signals and every target node performs multiple 'pseudo-snapshots' for the orthogonal signals and estimates wave direction using the snapshot result; last, anchor node moves to multiple location for repeating the above procedure and every target node acquires wave direction information of several groups and finally estimation result of self position combining location of anchor node for emitting orthogonal signal and array antenna posture.

The invention discloses a two-hop wireless network architecture, which comprises terminal equipment, relay equipment and gateway equipment, wherein the gateway equipment broadcasts a preset broadcast message to the terminal equipment in real time; the terminal equipment monitors and receives the preset broadcast message and determines a signal-to-noise ratio and the received signal strength under the current condition through combination with the actually-received message; the relay equipment alternatively carries out dormancy and revival; when the terminal equipment needs to send data to the gateway equipment, the data is selectively and directly sent to the gateway equipment according to the determined signal-to-noise ratio and the received signal strength under the current condition or the data is indirectly sent to the gateway equipment through the relay equipment; and when the data is indirectly sent through the relay equipment, the terminal equipment adds a lead code in the front of to-be-sent data, and when the relay equipment monitors the lead code, a revival state is kept until to-be-sent data corresponding to the lead code is received and forwarded. The two-hop wireless network architecture has the advantages of low cost, low complexity, low energy consumption and the like.

A wireless network architecture is disclosed which effects substantial gains in security and efficiency. Data, graphics, or other data residing on a network server which is desired to be provided to the user of a wireless communication device (WCD) is formatted into an appropriate WCD display-compatible data by the wireless server, instead of by the WCD itself. For example, a "WCD display-compatible data" would be a matrix of pixel values, each value representing the intensity of illumination or reflection of a specific spot or pixel on the WCD screen, as it can be directly displayed on the WCD screen without interpretive processing by a WCD. Instead of a high cost and power-hungry operating system residing on the WCD, those processing capabilities are rendered by the wireless server, with the result that the functionality of the WCD can be made into a fixed hardware on the WCD.

The invention relates to a network programming scheme and discloses a network programming scheme suitable for heterogeneous cellular wireless network configuration. Historical service flow distribution is used to divide a subarea and a service demanding node model is established. A link gain between different types of candidate base stations and a service demanding node is predicted. Power and bandwidths consumed by the candidate base stations when satisfying the service demanding node are determined. The candidate base stations are selected and the base stations are deployed. The sources are distributed so that load balancing between heterogeneous cellular wireless network base stations is achieved. The invention provides the network programming scheme with low cost, high performance, high precision and a balanced network load.

The invention discloses wireless network architecture with a load balancing function and relates to the technical field of a wireless network. The architecture comprises a router, an access controller, a switch and at least two wireless access points. Each wireless access point is connected with an Ethernet through the switch, the access controller and the router in sequence. A network probe is connected with each wireless access point. The output end of the network probe is connected with the input end of the access controller. According to the architecture, traffic and the number of loads are taken as conditions for STAs (Stations) to access APs (Access Points). When the APs satisfy the condition that both the traffic and the number of the loads are smaller than corresponding threshold values, new STAs are allowed to access, network congestion is prevented, and the stability of the wireless network is ensured.

A method and apparatus for transmitting a location service message between a location server and a mobile station or LMU in a GPRS wireless communications system. The location server generates a location service message and transmits the location service message to a base station subsystem; the base station subsystem forwards the location service message to a serving GPRS support node; the serving GPRS support node then forwards the location service message to a mobile station or LMU), passing transparently back through the base station subsystem. This approach to system routing of location messages allows existing circuit-switched wireless communications systems to support location services in a GPRS environment with a minimum of alterations to existing hardware and software protocols.

The invention relates to a wireless network architecture in a passenger train. The wireless network architecture is mainly composed of a vehicle-mounted server, a wireless controller, a satellite antenna, a modulator-demodulator, a wireless access point, a WIFI suspended ceiling antenna and train side connectors. The satellite antenna is connected with the wireless access point through the modulator-demodulator so as to achieve both-way communication between the external Ethernet and the vehicle-mounted server and achieve the function of communication between the external Ethernet and the vehicle-mounted server. The vehicle-mounted server is used for receiving passenger train running state information transmitted by a passenger train running state monitoring system and receiving service request information forwarded by the wireless access point, the WIFI suspended ceiling antenna sends the passenger train running state information and the passenger train service information to wireless client terminals through the wireless access point, and therefore different requirements of passengers for passenger train services on the vehicle-mounted server are met. Information interaction between the wireless client terminals in carriages is achieved through the train side connectors between the carriages, and networked and intelligent management of the carriages of the passenger train is improved.

The invention relates to a mobile station, an access station, a gateway device, a base station and a handshaking method thereof, which are used for a wireless network architecture. The network architecture comprises a first wireless network and a second wireless network. The first wireless network comprises the access station. The second wireless network comprises the gateway device and the base station. A secure channel is arranged between the access station and the gateway device. When being handshook to the second wireless network from the first wireless network, the mobile station can transmit a main conference key to the gateway device through the access station and the secure channel. Moreover, when being handshook to the first wireless network from the second wireless network, the mobile station can transmit the main conference key to the access station through the gateway device and the secure channel. Therefore, the identification time required by the handshaking between the first wireless network and the second wireless network can be effectively reduced.

A wireless network infrastructure that adapts frame parameters of concurrent interfering receptions in response to the dynamically varying channel conditions. The channel conditions are determined by number of associated wireless end point devices within a cell, their capabilities, anticipated bandwidth usage, QOS (Quality Of Service) demands, priority of service and idle states, cell overlap interferences, near-far interferences and noises. The wireless network infrastructure contains a wireless access point within the cell that assigns a mode to a frame or sub-frame and adapts to channel conditions by varying mode durations and payload lengths. The modes include single transmission mode, plurality of partial concurrent interfering transmission modes and full concurrent interfering transmission mode. These modes allow single as well as concurrent interfering transmissions and receptions of varying payload lengths.