183 results about "Packet radio" patented technology

Methods and apparatus for selecting a cellular network to provide one or more communication services for a mobile communication device are disclosed. A scanning operation is performed by the mobile device to identify a plurality of cellular networks that support a voice communication service in a geographic coverage area. The mobile device then identifies which of the cellular networks makes a data communication service available to it. Advantageously, the mobile device assigns priority to or selects a cellular network that makes the data communication service available over a network that fails to make the data communication service available, and may register with that network. The data communication service may include, as examples, an e-mail communication service or an Internet access service. Preferably, the cellular network operates in accordance with GSM (Global System for Mobile) and GPRS (Generalized Packet Radio Service).

Methods, apparatuses and systems for user-plane congestion management are provided. Among these method, apparatuses and systems is a method, implementable by a base station (and/or a serving gateway), for mitigating user plane congestion. The method may include sending a congestion indication to a core network; receiving a general packet radio system (GPRS) tunneling protocol (GTP) packet including an first internet protocol (IP) packet associated with a first flow within a bearer; obtaining, from a header of the GTP packet, an indicator indicative of a priority of the IP packet, wherein the indicator was inserted into the header of the GTP packet by the core network responsive to the congestion indication; and dropping any of the GTP packet and the first IP packet on condition that a priority of a second IP packet associated with second flow within the bearer takes precedence over the priority of the first IP packet.

A method as described by which an application executing in an application layer of a multi-layer communication protocol forming part of a general packet radio service (GPRS) session can signal for the setup and release of Temporary Block Flow (TBF) which will not be released during application execution in silent (inactive) periods. When applications such as voice, telnet or web browsing have specific traffic type data that have inactive periods between active periods are to be carried over GPRS, the session consists of multiple active periods. Current TBF release procedures lead to multiple TBF setups during such sessions. With the method described, a special type of TBF can be set up with special procedures for release of this TBF which greatly minimizes the need for multiple TBF setups during a session containing data transfers with inactive periods between active data transmissions.

An exemplary wireless communication network that includes a base that communicates with remote units located in a cell of the network. A base concatenates information symbols with a preamble corresponding to a destination remote unit. One or more remote units communicating with a base each concatenates information symbols with a preamble corresponding to that remote unit. An adaptive receiver system for a base unit rapidly adapts optimal despreading weights for reproducing information symbols transmitted from multiple remote units. A transmitter system for a base unit concatenates information symbols with a preamble associated with a remote unit in the cell. An adaptive receiver system for a remote unit in a communication network rapidly adapts optimal weights for reproducing a signal transmitted to it by a specific base unit in the network. A transmitter system for a remote unit in a cell of a communication network which concatenates information symbols with preamble associated with the remote unit. A base initiates communication with a desired remote unit by transmitting an initiation codeword in a selected entry slot. One or more remote units each initiates communication with a bse by transmitting an initiation codeword associated with the remote unit in a selected entry slot. A remote unit synchronizes in time and frequency to the base using a sequence of synchronization signals transmitted by the base in a number of entry slots.

An Ultraviolet-C (UVC) based portable water purification system employing a novel array of baffles increases the efficiency per unit energy of irradiating UVC light in the eradication of pathogens in the water. Closed loop feedback allows monitoring the application of UVC light power to ensure high levels of pathogen eradication. This system is capable of eradicating a wide range of waterborne bacteria, viruses, protozoa, helminthes, yeast, and mold found in natural freshwater sources worldwide. By adding pre- or post-filters, the system can remove harmful organic compounds, pesticides, inorganic compounds and heavy metals from the water. The system can also be used to eradicate pathogens in fluids other than water. As a feature of this invention, a communications systems that can reach geographically dispersed populations at low cost without the need to install costly wired communications infrastructure is combined with and powered by the water purification system. In one embodiment, a packet radio system is provided to create nodes in a wireless mesh communications system to provide voice, data, video and internet communications using an array of the water purifiers to create a wireless mesh network.

A method of initiating a wireless communication session with a communication network is provided. A cost estimate for the communication session is determined based on a quality of service level and a quantity of information to be communicated. The communication session is initiated when the cost estimate is accepted. In one embodiment, the user may select a second quality of service level for the communication session when the first cost estimate is not accepted and is provided a second cost estimate for the second quality of service level. In yet another embodiment, a communication session is initiated when there is sufficient balance available to the wireless communication device or a user's smart card for a communication session at a quality of service level selected by the user. In one embodiment, the method may be performed in accordance with a packet radio service network providing packet data services.

An improved method and system for accessing wireless data services that reduce messaging and enable roaming subscribers to access data services are described. A wireless communication system in accordance with the present invention includes at least a service control point and a gateway system (e.g., a Gateway Generalized Packet Radio Service Serving Node (GGSN)) that is coupled to a data network. To obtain access to data services, a wireless subscriber unit establishes communication with a gateway system and requests data services from the gateway system. In response to the request, the gateway system queries the service control point regarding authorized data services for the subscriber unit. If the gateway system receives a negative reply from the service control point, then the gateway system denies access to the data services by the subscriber Unit. However, if the gateway system receives a positive reply from the service control point, then the gateway system enables access to the data services by the subscriber unit. In a preferred embodiment, the gateway system tracks the requested data services utilizing pre-defined resource units. In one embodiment, the gateway system tracks service utilization by periodically querying and receiving a reply from the service control point after each pre-defined resource unit has been utilized. In this embodiment, the service control point updates an account balance of remaining resource units in response to receiving the queries and informs the gateway system when data access should be denied.

It is provided a solution for selecting the length of a transmission time interval for high-speed packet radio communications between a base station and a mobile station. The length of the transmission time interval used in data transfer is selected on the basis of channel conditions between the mobile station and the base station. An average value for a channel quality metric representing the channel conditions is calculated and the calculated average value of the channel quality metric is associated with a pre-determined length of the transmission time interval. That length of the transmission time interval is then selected for the data transfer between the mobile station and the base station.

This invention describes a method for sharing of application specific objects between communication devices (e.g., a mobile communication device or a mobile phone) using middleware containing a peer-to-peer engine. This engine is completely peer-to-peer based and no servers are needed in the network. Especially games are seen as a promising potential application for the invention. An application registers to the peer-to-peer (P2P) engine when it wants to share or download files. The P2P engine takes care of the file sharing and informs when a new file has been downloaded so the application can start using it and the P2P engine delivers them to the appropriate application directories. The P2P engine can use either a 2G or 3G general packet radio system (GPRS), a wideband code division multiple access (WCDMA) or a Bluetooth as a transport for the file sharing and the choice of the transport is left to the user.

The present invention provides a method for routing data from a service request in a communication system. A context is transferred from a packet data gateway, such as a Serving GPRS (GSM Packet Radio Service) Support Node (SGSN), to a Base Station System (BSS) coupled thereto. The context specifies where data for this user should be sent. The service request is received at the BSS and includes data. The data from the service request is routed to an appropriate location, based at least in part upon the context.

The invention relates to a dangerous goods transport vehicle dynamic monitoring method and an early warning device. The method comprises the following steps: (1) arranging the early warning device which comprises a collision, rollover and temperature and pressure early warning module, an early warning arithmetic and a threshold value; (2) acquiring the acceleration, the dip angle, the temperature/pressure and image signals of a goods wagon; (3) carrying out calculation on each signal and comparing the signal with the preset threshold value and sending out a corresponding alarm command; (4) displaying alarm information and sending the alarm information to a remote monitoring center through a global position system/general packet radio system (GPS/GPRS); (5) after the alarm is completed, returning to the step (2); and (6) carrying out real-time monitoring on a goods state and the alarm information by a driver through displaying. The corresponding early warning device comprises the GPS/GPRS, cameras, a card reader, a triaxial acceleration sensor, a display screen, an artificial alarm, a buzzing alarm, a temperature/pressure sensor, a dip angle sensor, a secure digital (SD) card storage and an electronic control unit which comprises a microprocessor. The collision, rollover and temperature and pressure early warning module is arranged in the microprocessor. The invention can be used for carrying out real-time monitoring on collision, rollover and temperature and pressure, thereby being beneficial to driving safety and rescue operation.

A method for dynamic division of the radio capacity in a Time Division Multiple Access (TDMA) system between different packet radio services. Each packet radio service is composed of packets with the same or different priority. Several MSs can share a time slot. Information regarding to the interference for each MS is obtained by a request from a mobile station (MS) or through a traffic measurement at the base transceiver station. This information, along with the QoS contract, is used as criteria in allocating more time slots to packet radio service. A framework of dynamic scheduling for mobile communication (DSMC) comprising a Channel Codec Unit (CCU) and a Packet Control Unit (PCU) determines the service rate upon the required QoS of a user and the interference level.

Apparatus, and an associated method, for a frame-formatted radio communication system. Coordination is provided between MAC and RLP layers of a sending station through use of apparatus embodied at the MAC layer of the sending station. Also, apparatus is provided at a receiving station to reduce the generation of RLP layer NAK during segmented RLP frame retransmissions.

An admission control method, packet radio system and controller. The packet radio system comprises at least one HSDPA (High Speed Downlink Packet Access) capable user terminal and at least one controller configured to control admission of user terminals to given channels. The controller comprises a processing unit configured to determine a reference value on the basis of HSDPA channel information of the packet radio system, to compare the determined reference value with the value of the user bit rate of the packet radio system, to map the user terminal to an HSDPA channel when the reference value is greater than or the same as the user bit rate, and to map the user terminal to a Dedicated Control Channel, DCH, when the reference value is smaller than the user bit rate.

An internet packet comprises a header field, the header field including a field identifying a source address of the internet packet, a field identifying the destination address of the internet packet and a next header field identifying whether an extension header follows the header and a type of the extension header. The extension header indicates a hop-by-hop option header, the hop-by-hop extension header including a router alert option header type indicating that the extension field is optional for a router to read, and a field providing information for a gateway support node of a packet radio system network. A gateway support node is thereby provided with information, which may be required for example to support a mobile internet protocol (IP). However, by providing the router alert option field, a router is not required to read the remainder of the hop-by-hop option field. As a result, a reduction in the performance of the router in routing internet packets, which may have been incurred if the router was required to read all the hop-by-hop extension field can be limited.

According to the present invention there is provided a telecommunications system for providing a facility for communicating internet packet data in accordance with a first internet protocol (IPV6). The system comprises a user equipment, the user equipment including a first internet protocol stack operable in accordance with a first internet protocol (IPV6) and a second internet protocol stack operable in accordance with a second internet protocol (IPV4). The system includes a packet radio system (GPRS) network operable to communicate internet packet data in accordance with the second internet protocol (IPV4), and an inter-working. The inter-working unit is operable in association with the user equipment to represent internet packet data according to the first internet protocol (IPV6) as internet packet data according to the second internet protocol (IPV4) for communication via the packet radio system network (GPRS). The inter-working-unit is operable to represent internet packet data received from the packet radio system network (GPRS) in the form of internet packet data according to the second internet protocol (IPV4) as internet packet data according to the first internet protocol (IPV6) for communication to the user equipment. The inter-working unit acquires from the second internet protocol stack an address for representing the internet packet data according to the first internet protocol as internet packet data according to the second internet protocol. The inter-working unit also acquires from the first internet protocol stack an address for representing the internet packet data according to the second internet protocol as internet packet data according to the first internet protocol. A corresponding inter-working unit is provided for reciprocal communication of internet packet data to and from the packet radio system network (GPRS). Embodiments of the present invention can provide a facility for a user equipment to run application programs which require the use of internet protocol communications according to one internet protocol using a packet radio system network which has been arranged to communicate internet packet data according to a different internet protocol.

Apparatus, and an associated method, forms an integrated packet radio communication system. An integrated system is formed of portions of a GPRS system as well as portions of a WLAN system, such as that defined in the IEEE 802.11 standard. A WIP (WLAN Integrated Protocol) layer is defined, functionally positioned between upper-level, GPRS layers and lower-level, WLAN layers. Advantages of a GPRS system as well as advantages of the WLAN system are maintained in the integrated system.

A Wideband Intercom and Secure Packet Radio (WISPR) system includes a state-of-the-art digital, fully programmable communication system that provides internal and external communication to the operators of any type of vehicle. The WISPR system includes a dedicated secure radio with anti-jamming capabilities in order to support a Wireless Local Area Network (WLAN) and is able to provide voice and data communication over radios, analog wires and data/voice over field telephones and tank telephones. The system supports a variety of user specified operational requirements (e.g. hierarchy plans, closed group conference, wired or wireless remote radio control, tactical data reception, independent listen/talk functions) and has the capacity for dynamic adaptation to field requirements and the potential for expansion in order to fulfill the future needs of the Armed Forces. The WISPR system configuration is adaptable according to the type of platform and the particular operational requirements for a specific application.

A digital communications path-controller for auto switching and controlling the transmission and receiving of analog and error-free transmission of standard digital signals, fax digital signals and analog communications over telephone line service, radio frequency networks, satellite systems, as well as wireless telephone systems includes switches that receive control signals from the micro-controller for controlling and switching the analog or digital path of an internal analog board and the signals from a digital communications path to and from a radio frequency transceiver via a radio frequency transceiver interface/logic board, a wireless telephone transceiver via a wireless telephone transceiver interface, a telephone landline via a telephone line interface, a satellite system via a telephone landline through the telephone line interface. A method selects the telephone line interface which either connects to the telephone line, the satellite system or the wireless telephone, and another method bypasses the telephone line interface, selects and controls radio frequency telemetry modules or packet radios. The operation of the digital communications path-controller is divided into three modes comprising a command mode, a digital mode and an escape mode. The software is a set of digital communication protocols which provide error-free communication of digital and define a file transfer protocol at the application layer, the session protocol and the link protocol.

There is provided a radio system comprising a base station, a packet control unit and a mobile station, the radio system being configured to communicate control and data blocks between the mobile station, the packet control unit and the base station, the control blocks controlling data transmission in the packet radio system. The packet control unit is configured to determine which given packet control unit functionalities related to the transmission of given control or data blocks are to be distributed from the packet control unit to the base station, and to provide to the base station control information on which packet control unit functionalities are distributed to the base station; and the base station is configured to perform the given packet control unit functionalities for given control or data blocks on the basis of the control information received from the packet control unit.

Network formation in wireless networks according to an embodiment of the present invention is enhanced based on control of network formation packet transmissions (e.g., Packet Radio Organizational Packet (PROP) transmissions). A source-initiated approach controls re-transmission of inquiry/reply PROP packets based on the presence of a neighboring node. This reduces the size and amount of PROP packets transmitted during neighbor discovery. In addition, the source-initiated approach controls re-transmission of PROP packets indicating a change in an upstream or control type node (e.g., LNC PROP). In this case, the node determines the presence of steady-state conditions (e.g., maintenance of conditions for the original LNC PROP transmission), and enables a single re-transmission of the LNC PROP packet, thereby reducing the transmission of unnecessary or duplicate LNC PROP packets (e.g., containing substantially the same information as previously transmitted packets since conditions have remained the same).

A host-sponsored data transmission billing system and method is provided to permit reduced costs to a mobile user for internet access through an internet gateway. An operator billing system is provided (either in the internet gateway itself or coupled to the internet gateway) to generate billing data for payment by the mobile user for connection requests by the mobile user through the internet gateway to private sites on the internet. However, to reduce the costs to the mobile user to encourage access to host-sponsored commercial sites, the operator billing system bills data for payment by host-sponsors for connection requests by the mobile user to the host-sponsored sites. A General Packet Radio System (GPRS) can be utilized in this arrangement as the internet gateway.

A method for improving the performance for a streaming service by link-adaptation and power-control in a wireless packet network such as an Enhanced General Packet Radio Services (EGPRS) cellular network is described. In particular, the effects of a combined link adaptation and power control scheme (referred to as an error-based scheme) for achieving a target error rate, which is non-zero but low enough so that limited retransmission and error concealment techniques are effective, is presented.