400 results about "Bluetooth networks" patented technology

A wireless communications device detects a change in its residual energy status, and transmits the residual energy status across a wireless communications network to a remote device that coordinates communications in the wireless communications network. For example, the remote device may be a piconet coordinator (PNC) in an IEEE 802.15.3 network, or a master device in a Bluetooth network. A wireless communications device that coordinates communications in a wireless communications network (the coordinator) transmits one or more first handover commands to one or more remote devices upon the occurrence of a triggering event. Based on responses to these first commands, the coordinator selects a remote device for coordinating future communications in the wireless communications network.

The present invention is related to location positioning systems, and more particularly, to a method and apparatus for providing an update of ephemeris information. According to one aspect, GPS enabled devices in the signal unavailable area monitors the state of its ephemeris data and time information. When the ephemeris data and time information become out of date, the GPS enable device uses an ad hoc Bluetooth network to retrieve ephemeris data and time information from another GPS enabled device with more current data. According to further aspects, a map of a deep hole region in which GPS and other cellular signals are not available, is generated to enable power reduction and cost saving measures.

An auto pairing system and method for a Bluetooth network is provided through a wired or wireless coupling. The method for pairing two devices of a short range wireless communication network includes configuring, at each device, a wired and wireless auto pairing of the devices; determining whether the devices are physically coupled with each other; and performing pairing between the devices if the devices are physically coupled. The auto pairing system and method for Bluetooth devices of the present invention enables Bluetooth devices to automatically perform an on-going pairing process through a wired connection or wirelessly in close proximity without a user involvement, thereby improving user convenience.

An apparatus enabling establishment of a Bluetooth mesh network comprises at least two Bluetooth transceiver circuitries and an internal connection between the at least two Bluetooth transceiver circuitries. The Bluetooth transceiver circuitries are simultaneously connected to different Bluetooth piconets, and the apparatus operates as a bridge between the piconets. Concatenation of such apparatuses enables construction of a Bluetooth mesh network where the bridge devices may be simultaneously connected to multiple Bluetooth piconets.

A method and system for Bluetooth (BT) delayed acknowledgment is presented. Aspects of the system may include an initiator device, such as a WLAN access point (AP), which enables transmission of a protocol data unit, such as a BlockAckReq frame, to a responder device, such as a Smartphone, via a first network, for example a WLAN. The Smartphone may be equipped with capabilities that enable communication via WLAN and Bluetooth networks. The AP may wait to receive a response protocol data unit, such as a BlockAck frame, via the first network (WLAN) for a response time duration. The response time duration may be based on the communication slot time duration for communication by the Smartphone on a second network, for example a BT piconet. The communication slot time duration may correspond to the time duration for a BT slot.

A method and apparatus for opening a communications port for communication over a wireless communication network. Specifically, one embodiment of the present invention discloses a method for opening a virtual communications (VCOM) port that is configured with a particular profile over a Bluetooth network. After an attempt to open the VCOM port is received from a first application at a first electronic device, the process is suspended until a communication path is established over the Bluetooth communication network between the first electronic device and a remote electronic device within a Bluetooth network. The remote electronic device may be selected by a user from a list of available devices. In another embodiment, a user may pre-configure the VCOM port for a specific functional profile and pre-configure a remote electronic device to the VCOM port.

A GSM network (1) includes a base station (2). A first mobile terminal (5) is outside a region of coverage. Using Bluetooth network, a second terminal (6) relays signals between the first terminal and the base station. The second terminal is awarded credit for relaying the signals.

A system and method for managing the relationship between master devices and slave devices within a network such as a Bluetooth network. Each time that a master device connects to a slave device, the network topology is updated. This update is transmitted to each slave device, sending the node's properties for each slave device belonging to the network, as well as an update on the priority number given to each slave device. When a master device abruptly exits the network, a slave device with the highest priority configures itself as the master device. The new master device then attempts to connect to the other slave devices using previously-stored information.

Methods and a mobile terminal capable of selecting a wireless network from a Bluetooth network to a WLAN, the terminal includes a Bluetooth module; a WLAN module; a storage device; and a controller cooperating with the Bluetooth module, the WLAN module and the storage device such that the Bluetooth module is configured to be activated in the mobile terminal; a Bluetooth connection is established with the access point; the WLAN module is configured to be activated and to scan to search the access point; and a WLAN connection is established between the access point and the mobile terminal.

The invention relates to an indoor and outdoor fusion positioning method using a dedicated terminal or a smart phone, which is not only suitable for people, but also is suitable for robots and other intelligent mobile devices. The indoor and outdoor fusion positioning method is characterized in that: 1) indoor positioning is realized by inertial navigation, particle filter, fingerprint matching and indoor map matching, the accuracy is 1 meter or so; 2) the system automatically switches indoor and outdoor scenes, and indoor and outdoor is seamlessly integrated; 3) the dedicated terminal is composed of a universal hardware module, such as GPS, an inertial navigation sensor (an accelerometer, a magnetometer, a gyroscope), a wifi or a Bluetooth module, a communication module and the like; 4) the implementation site is based on the existing wifi network or Bluetooth network, no other hardware needs to be deployed, and thus the cost is reduced; 2) a map marking system with excellent design is provided for marking the map conveniently and quickly without professional skills; and 6) the algorithm is complete and independent, the transportability is high, and thus the indoor and outdoor fusion positioning method can be easily transplanted to other smart phone platforms, robot platforms, wearable devices, etc.

The present invention relates to a method, arrangement and node for routing packets within a Bluetooth network. More particularly it relates to the problem of high level routing within Bluetooth networks, requiring a lot of processing overhead and data buffering. The problem is solved by means of a method for routing a packet, from a first node, via the forwarding node to a second node, within a Bluetooth network. In the first node, a forwarding indicator and routing information is noted in a header of the Baseband packet. The packet is transferred to the forwarding node which analyses the indicator and the routing information in the Baseband header. The packet is forwarded without unpacking and analysing the information of protocol layers higher than the Baseband layer.

The invention discloses a network netting and a routing method of a Bluetooth wireless sensor, which combines sensor network technique and Bluetooth technique and makes full use of the matured physical layer, MAC technique and anti-interference capacity of Bluetooth network when the sensor nets network, so as to lead the system to conveniently and rapidly net the network. A designed Bluetooth scatter net takes the practical use of a wireless sensor network into consideration when netting and uses a tree topology. The netting consists of three stages: the selection of a root node, the forming of a root piconet and the expansion of the network. By adopting the netting method based on that the energy can be predetermined and the service time of the network can be prolonged, and under the requirement of emphasizing the longest service life of the network, each piconet of the formed wireless sensor network is left with vacant positions and backup nodes, so as to lead the formed network to have better reliability, flexibility and self-recoverability to satisfy the situations that partial nodes can be added on, moved and leaves the network, etc. The routing information is interacted when the system is net, and when the network netting is completed, the routing information tables of all the nodes are built simultaneously. When the network is operated, a low-power respiratory mode of the Bluetooth network and the transmitting and sensing information of the network periodicity are used for prolonging the life service of the whole network.

Methods and systems for powering-off a Bluetooth device from a linked device are provided. A device can transmit a Bluetooth signal to a linked device to instruct the linked device to power-off. In this manner, the user need only turn off one device manually which results in all linked devices being powered off. This process can be initiated by a user through a device directly linked with the device to be powered-off or through a device that is indirectly connected, through one or more Bluetooth networks, with the device to be powered-off. This process can also be automatically initiated by a device when a set of predetermined conditions exist. Once instructed to do so, a device can initiate a predetermined power-off process which can involve terminating any ongoing functions and turning off various subsystems. In accordance with the present invention, a user can initiate a power-off of all the devices on a Bluetooth network through a single device.

A Bluetooth private network comprises Bluetooth access points, each functioning as a base station in each of Bluetooth piconets, a gateway for functioning as an interface between a public network and the Bluetooth private network, sending a beacon signal to each of the Bluetooth devices in local Bluetooth networks to locate the Bluetooth device and a router for functioning as an interface between each of said Bluetooth access points. The Bluetooth device has a power measuring device therein that measures output power signals of a plurality of Bluetooth access points. When the Bluetooth device is moving from one piconet to another, the Bluetooth device compares the power signals received from two Bluetooth access points and links to the Bluetooth access point with the power signal that exceeds a predetermined level.

Disclosed herein are techniques for the distribution of data to multiple devices in wireless networks, such as Bluetooth networks. This data may be unicast, multicast, or broadcast in nature. Designations, such as reserved addresses are used to indicate whether devices are transmitting multicast or broadcast data. These devices may be slave devices that rely on a master device to forward their transmissions to multiple devices.

The position of a given mobile terminal is determined by communicating satellite positioning system information between the given mobile terminal and at least one other mobile terminal over a short-range, ad hoc wireless network, such as a Bluetooth network, to cooperatively determine the position of the given mobile terminal by the given mobile terminal and the at least one other mobile terminal that communicate over the short-range, ad hoc wireless network. Satellite positioning system information may communicated by distributing processing of the satellite positioning information, by distributing receiving of satellite positioning system information from a satellite, by communicating assistance data and/or by synchronizing timing of satellite positioning information, between the given mobile terminal and the at least one other mobile terminal over the short-range, ad hoc wireless network.

The invention discloses a wireless terminal, a short-range SNS (social networking services) system and an implementation method based on the Bluetooth technology. The SNS system comprises a plurality of piconets consisting of Bluetooth wireless terminals, each piconet comprises one wireless terminal serving as master equipment and one or a plurality of wireless terminals serving as slave equipment, the wireless terminals use Bluetooth devices thereof for detecting the Bluetooth piconets and communicating with other wireless terminals, a Bluetooth network maintenance module is used for constructing, running and destructing the Bluetooth piconets, and an SNS application module is used for running SNS applications, carrying out SNS service interaction through the Bluetooth devices and the other wireless terminals based on the Bluetooth piconets, completing integration and release of information and realizing sharing and exchange of user data. The short-range SNS system can implement SNS services based on Bluetooth wireless networks, can implement local services and be connected with an internet, and has the advantages of low cost and flexibility in networking.

The invention provides a combined positioning method based on inertial navigation, wi-fi or bluetooth signal fingerprints and an indoor electronic map, and can be widely applied in indoor positioning and seamless combination of indoor and outdoor positioning. The combined positioning method is characterized by comprising the steps: 1) coarse positioning is performed via the wifi or bluetooth network, then through an inertial navigation system of an intelligent terminal and with combination of the map, a precise position of a customer is obtained, and a walking track of the customer is real-timely and continuously obtained; 2) based on formation and use of the electronic map of an indoor planar graph, an indoor electronic map labeling method is included; 3) a particle filtering algorithm combining the several factors together includes detection of a moving state, detection and adjustment of the step length, the step direction and the step frequency, adaption for the electronic map and the wifi (bluetooth) signal fingerprints and the like; 4) based on a map matching algorithm, a correct and accurate walking path is guaranteed; and 5) the terminals not only include intelligent mobile phones and panel personal computers and also include intelligent wearable devices.

The invention discloses a multi-protocol multi-player video playing method based on a self-adaptive network bandwidth. Video data packaged by at least two types of protocols and playing address information corresponding to the video data with different code rates are pre-stored in a server; the current network type is judged, and a first player is adopted to play the video data packaged by the corresponding first protocol or a second player is adopted to play the video data packaged by the corresponding second protocol according to the network type. The multi-protocol multi-player video playing method based on the self-adaptive network bandwidth can solve the problems that when broadband networks such as a wifi network, a 4G network and a Bluetooth network are used, in the process of video playing, network conditions become very poor, or when the network type is changed, a green screen of a player is prone to emergence, buffering time is too long, and video resources cannot be obtained.