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361 results about "Hand-off" patented technology
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In American football, a hand-off is the act of handing the ball directly from one player to another, i. e. without it leaving the first player's hands. Most rushing plays on offense begin with a handoff from the quarterback to another running back. The biggest risk with any hand-off is the chance of fumble on the exchange. A hand-off can occur in any direction. Sometimes called a "switch" in touch football. Alternately spelled without the hyphen; i.e., "handoff".
On/off keying node-to-node messaging transceiver network with dynamic routing and configuring
InactiveUS7027773B1Low costReduce trafficNear-field transmissionError preventionTransceiverAdaptive routing
Owner:AFX TECH GRP INT
Distributed load-balancing internet servers
Owner:RADWARE
Node-to node messaging transceiver network with dynamec routing and configuring
InactiveUS20050226201A1Low costReduce trafficData switching by path configurationRadio transmissionComputer networkTransceiver
The invention is a system operating on a reference frequency. The system comprises a plurality of at least three nodes. Each node hands off a message received from another node to a subsequent node. Each of the nodes comprises a transceiver receiving a message on the reference frequency from another node and transmitting the received message on the reference frequency to a subsequent node, and a controller controlling operation of the transceiver to receive the message transmitted by another node and to transmit the received message to a subsequent node.
Owner:AFX TECH GRP INT
Node-to node messaging transceiver network with dynamic routing and configuring
InactiveUS7653394B2Low costReduce trafficEnergy efficient ICTData switching by path configurationTransceiverAdaptive routing
Owner:AFX TECH GRP INT
Method and system for triggering handoff of a call between networks
ActiveUS20050059400A1Eliminates and reduces of disadvantageEliminates and reduces of and problemNetwork topologiesMultiple digital computer combinationsMobile stationHand-off
A method for handing off a call between networks includes monitoring a quality of a first link between a mobile station and a wireless local area network (WLAN) when the mobile station is actively connected with the WLAN on a call and monitoring a quality of a second link between the mobile station and a cellular network when the mobile station is actively connected with the WLAN on the call. The method also includes handing off the call from the WLAN to the cellular network when the quality of the first link is less than a handoff trigger threshold for a drop count duration and when the quality of the second link is greater than a minimum cellular link quality threshold.
Owner:CISCO TECH INC
Handoff of a multimedia call session using background network scanning
ActiveUS20060025151A1Assess restrictionRadio/inductive link selection arrangementsQuality of serviceRadio frequency
A method and system supporting handoff of a multimedia call session using background network scanning is disclosed. A mobile multimedia handset may engage in the exchange of a multimedia information stream via a first wireless network, and may sniff a portion of radio frequency spectrum for a second wireless network. Information about available services and network quality of service for the second network may be received by querying the second wireless network or from advertising by the second wireless network. Hand-off between the two networks may be based upon the results of the comparison and one or more user-defined criteria, and the handoff may be synchronized according to predefined events in the stream of multimedia information.
Owner:AVAGO TECH INT SALES PTE LTD
Method and apparatus for providing a communication unit with a handoff between networks
InactiveUS20040264410A1Data switching by path configurationWireless network protocolsCommunication unitHand-off
A communication unit (10) includes a mobility agent (225) for providing handoffs between a cellular network and a wireless local area network (11). The communication unit (10) determines if it should switch between the wireless local area network (11) and the cellular network for obtaining service, requests a handoff to the wireless local area network (11) or to the cellular network by sending a SIP message addressed to either a public number (229) or a private number (231) associated with the communication unit (10) upon making the determination. The communication unit (10) accepts a new call from an enterprise server (12) over the determined network. Corresponding methods of providing a hand-off is described.
Owner:MOTOROLA INC
Private wireless network integrated with public wireless network
InactiveUS6970719B1Multiplex system selection arrangementsInterconnection arrangementsService profilePrivate network
A private wireless network is able to provide wireless telecommunication services to subscriber mobile stations that also subscribe to a public wireless network. The private wireless network includes a private base transceiver station (BTS), a private mobile switching center (MSC), and a gateway service control point (SCP). The private BTS provides a private network wireless coverage area within which the mobile station can communicate with the base transceiver station over an air interface. The gateway SCP has a private network database containing private network data records for subscribing mobile stations. A private network data record includes a private network service profile and a private network locator address. The public wireless network has a home location register (HLR) with a public network database containing public network data records for subscribing mobile stations. A public network data record includes a public network service profile and a public network locator address. When a subscriber mobile station is active on the private wireless network, the private network locator address identifies the private MSC, and the public network locator address identifies the gateway SCP. By providing the private network wireless coverage area so that it overlaps the public network's wireless coverage area, the subscriber mobile station may be handed off between the private and public wireless networks.
Owner:SPRINT SPECTRUM LLC
Method and apparatus to allow hand-off from a macrocell to a femtocell
InactiveUS20080305801A1Facilitates session controlBandwidth adjustableTransmission systemsNetwork topologiesTelecommunicationsMobile station
A method for hand-off of a CDMA access mobile from a macrocell to a femtocell is disclosed. The method includes tracking each femtocell which mobile stations have allowed access incorporating a mobile station identification for each of the mobile stations. The method continues with storing the mobile station identification for each femtocell. This may occur in a database or similar structure. The message continues on with requesting a hand-off from the macrocell to the femtocell via PN offset and the method concludes with querying all femtocells that have that PN offset that are within range of the macrocell's neighbor list. If only one femtocell fits that criteria the method is done. If more than one femtocell fits that criteria, a priority list may be set up based at least in part on the number of times and / or frequency that the mobile station has been allowed access on the femtocell. The method could include allocating resources for all high priority femtocells and cleaning up resources for the femtocells that do not send a hand-off complete message.
Owner:WSOU INVESTMENTS LLC
Methods and apparatus for use in a wireless communications system that uses a multi-mode base station
ActiveUS20070066329A1Improve throughputReducing base stationEnergy efficient ICTPower managementCommunications systemSleep state
A multi-mode base station includes a transmit standby mode and an active mode. Transmit standby mode of base station operation is a low power / low interference level of operation as compared to active mode. In transmit standby mode at least some of the synchronization signaling such as pilot tone signaling is reduced in power level and / or rate with respect to the active mode. In transmit standby mode, the base station has no active state registered wireless terminals being serviced but may have some sleep state registered wireless terminals being serviced. Mode transitions from active to transmit standby may be in response to: a detected period of inactivity, scheduling information, base station mode change signals, and / or detected wireless terminal state transition. Mode transitions from transmit standby to active may be in response to: scheduling information, access signals, wake-up signals, hand-off signals, wireless terminal state change signals, and / or base station mode change signals.
Owner:QUALCOMM INC
Wireless terminal methods and apparatus for use in a wireless communications system that uses a multi-mode base station
ActiveUS20070066273A1Improve throughputReducing base stationPower managementEnergy efficient ICTCommunications systemSleep state
Wireless terminal for use with a multi-mode base station that supports a transmit standby mode and an active mode is described. Transmit standby mode of base station operation is a low power / low interference level of operation as compared to active mode. In transmit standby mode at least some of the synchronization signaling such as pilot tone signaling is reduced in power level and / or rate with respect to the active mode. In transmit standby mode, the base station has no active state registered wireless terminals being serviced but may have some sleep state registered wireless terminals being serviced. Mode transitions from active to transmit standby may be in response to: a detected period of inactivity, scheduling information, base station mode change signals, and / or detected wireless terminal state transition. Mode transitions from transmit standby to active may be in response to: scheduling information, access signals, wake-up signals from the wireless terminal, hand-off signals, etc.
Owner:QUALCOMM INC
Method and system for handoff between wireless networks
ActiveUS8184590B2Time-division multiplexWireless network protocolsSession Initiation ProtocolWireless mesh network
Owner:ALIANZA INC
Roaming and hand-off support for prepaid billing for wireless data networks
InactiveUS6829473B2Metering/charging/biilling arrangementsAccounting/billing servicesComputer networkWireless mesh network
Owner:UTSTARCOM INC
Mechanism for hand off using subscriber detection of synchronized access point beacon transmissions
InactiveUS20060039332A1Energy efficient ICTSynchronisation arrangementMobile stationWide area network
A WLAN access point (111) is synchronized with a Wide Area Network (WAN) (105) via either a backhaul connection (115), or via hardware of the WLAN access point (111) suitable for receiving and decoding a synchronization timing signal from the WAN (105). The mobile station (101) transmits a WLAN beacon during the predetermined time window. A WLAN access point (111) that detects the mobile station (101) beacon will then communicate with the WAN (105) via a backhaul connection (115), to inform the WAN (105) that a mobile station (101) has been detected. The WAN (105) then sends a message to the mobile station (101) to begin to search for a WLAN access point and handover from the WAN (105) to the WLAN.
Owner:MOTOROLA INC
Roaming and hand-off support for prepaid billing for wireless data networks
InactiveUS20040018829A1Metering/charging/biilling arrangementsAccounting/billing servicesWireless mesh networkComputer network
A method and apparatus for providing roaming and hand-off support for prepaid billing for wireless prepaid services on a data network may be provided by a first-network-access device carrying on session activity of a wireless communication session with a wireless-mobile node within a first coverage area. The first-network-access device receives blocks of credits drawn from a user account having a cache of available credits for the prepaid-services. The first-network-access device periodically measures usage of the session activity in terms of a first of a plurality of measurement-method parameters. The first-network-access device debits the usage of the session activity from the blocks of credits. After entering its coverage area, the second-network-access device establishes connectivity with the wireless-mobile node. The first-network-access device tunnels to the second-network-access device the session activity and any unused credits. The second-network-access device periodically measures usage of the tunneled session activity in terms of tunneled measurement-method parameters. The second-network-access device debits the usage of the tunneled session activity from the tunneled unused credits. The second-network-access device then establishes independent network access for the session activity. The second-network-access device receives blocks of credits. The second-network-access device periodically measures the usage of the session activity in terms of another of the plurality of measurement-method parameters. The second-network-access device debits the usage of the session activity from the blocks of credits it receives. After hand-off, the first-network-access device may receive from indications to terminate session activity, to stop debiting the usage of the session activity, and / or to return unused credits.
Owner:UTSTARCOM INC
Method, system and mobile station for handing off communications from a cellular radio access network to an unlicensed mobile access network
InactiveUS20060094431A1Convenient handoverEasy transitionRadio/inductive link selection arrangementsWireless commuication servicesAccess networkCellular radio
A method, system and mobile station for handing off communications from a cellular radio access network, such as a code division multiple access (CDMA) radio access network, to an unlicensed mobile access network (UMAN) are provided. The handoff may be effected by a signaling sequence between the mobile station, an unlicensed network controller of the UMAN, a base station controller of the cellular radio access network and the core network. In this signaling sequence, the UMAN may be identified in various manners, such as by means of an otherwise unassigned pilot PN offset or by means of a band class and an invalid frequency.
Owner:NOKIA TECHNOLOGLES OY
Method and system for intersystem wireless communications session hand-off
InactiveUS7010300B1Reduce complexityLow number of componentsNetwork traffic/resource managementRadio/inductive link selection arrangementsMobile stationWireless
A method of handing off an ongoing wireless telecommunication session with a mobile station when the mobile station is engaging in the ongoing communication session via a first access system, and then registers in a second access system, is provided. When communicating with the first access system the mobile station communicates with a first access node according to a first protocol. When communicating with the second access system the mobile station communicates with a second access node according to a second protocol, which is a different protocol than the first protocol. After registration of the mobile station in the second access system, the ongoing communication session is carried between the mobile station and the second access node according to the second protocol over the first protocol. More specifically, the ongoing communication session is carried between the mobile station and the second access node using the first protocol encapsulated in the headers of the second protocol.
Owner:SPRINT SPECTRUM LLC
Seamless hand-off of mobile node to a wireless local area network (WLAN)
InactiveUS20050025164A1Data switching by path configurationWireless communicationTraffic capacityIp address
A method and system for seamlessly handing off a Mobile Node (MN) equipped with a Wireless Local Area Network (WLAN) adaptor from a cellular network such as a GRPS / UMTS network to a WLAN network without interrupting the ongoing IP connection / session. When entering a WLAN coverage area, the roaming MN sends mobility information to a WLAN Integration Gateway (WIG) node allowing the WIG node to identify the source Service GPRS Support Node (SGSN). The WIG node contacts the source SGSN to obtain PDP Context information relative to the roaming MN, and establishes a new GTP tunnel with the servicing GGSN in order to complete the handoff. The WIG node may route data traffic for the MN by assigning a new IP address to the MN and by either performing IP-in-IP encapsulation or Network Address Translation (NAT).
Owner:TELEFON AB LM ERICSSON (PUBL)
Methods and systems for temporarily modifying a macro-network neighbor list to enable a mobile station to hand off from a macro network to a femto cell
ActiveUS7929970B1Improve network efficiencyWaste of resourceNetwork topologiesTelecommunicationsMobile station
Methods and systems are disclosed for temporarily modifying a macro-network neighbor list to enable a mobile station to hand off from a macro network to a femto cell. A method includes receiving a signal indicating that the mobile station detected coverage of a femto cell; after receiving the signal, adding the femto cell to the neighbor list, thereby enabling the mobile station to handoff to the femto cell; detecting that the mobile station completed handoff to the femto cell; and in response to detecting that the mobile station completed handoff to the femto cell, removing the femto cell from the neighbor list.
Owner:SPRINT SPECTRUM LLC
Method and apparatus for mobile platform reception and synchronization in direct digital satellite broadcast system
InactiveUS6956814B1Overcome disadvantagesImprove continuityPolarisation/directional diversityActive radio relay systemsEngineeringDiversity scheme
A satellite system employing time diversity and a single frequency network of terrestrial re-radiation stations is provided wherein each terrestrial re-radiation station inserts a delay into a terrestrial signal. The delay allows the time of arrival of the early time diversity signal at the center of terrestrial coverage to coincide with the arrival of the corresponding late time diversity signal, thereby improving hand-off between terrestrial and satellite signals at a receiver. The delay also adjusts for distance differences between each terrestrial re-radiation station and the satellite and between each station and the center of the terrestrial coverage region. This adjustment optimizes the TDM-MCM reception by synchronizing at the center of the SFN the phase of the MCM signals re-radiated from the re-radiating stations of the SFN. The delay also compensates for the processing delay encountered when converting a satellite LOS TDM stream into a multicarrier modulated stream for transporting the satellite LOS TDM stream to user receivers and for the diversity delay between the early and late signals.
Owner:WORLDSPACE INC
Cloud-based user-level policy, reporting, and authentication over DNS
ActiveUS20160036857A1Efficient power electronics conversionTransmissionProtocol for Carrying Authentication for Network AccessDomain Name System
A cloud-based method, system, and transparent proxy for user-level policy, reporting, and authentication over Domain Name System (DNS) include maintaining a local user Internet Protocol (IP) database identifying users in an enterprise; and acting as a transparent proxy for all DNS requests from the users performing the steps of: for a user already identified in the local user IP database, forwarding a DNS request to a cloud-based system with an identifier from the local user IP database of the user associated with the DNS request; and for the user not identified in the local user IP database, performing a series of redirects and hand offs in the cloud-based system to identify the user.
Owner:ZSCALER INC
Cellular simultaneous voice and data including digital simultaneous voice and data (DSVD) interwork
A system and method of simultaneously conducting a data transfer and a voice call between a mobile station and a radio telecommunications network having a mobile switching center (MSC) which serves the mobile station. A first embodiment includes a landline digital simultaneous voice and data (DSVD) modem associated with the mobile station which generates DSVD source signal and line negotiation protocols. The DSVD source signal and line negotiation protocols are encapsulated into circuit mode Radio Link Protocol (RLP) signals and transmitted to the MSC. An interworking function (IWF) associated with the MSC translates the circuit mode RLP signals into signals in a landline telecommunications protocol. In another embodiment, the voice call is carried over the air interface from the mobile station to the network in one timeslot, and the data transfer is carried in at least one additional timeslot on the same voice channel. In other embodiments, two voice channels may be allocated to the same mobile station. The voice call to a first party is carried from the mobile station to the network on one voice channel, and the data transfer to the first or a second party is carried on the second voice channel. The MSC hands off the two voice channels together, but releases them individually when either the voice call or the data transfer is completed.
Owner:TELEFON AB LM ERICSSON (PUBL)
Method and system for asymmetric handoff of wireless communication sessions
ActiveUS7260399B1Sure easySubstation equipmentRadio/inductive link selection arrangementsTelecommunicationsRadio networks
A method for handing off a wireless communication session between a first radio network and a second radio network. The method includes handing off the wireless communication session from the first wireless communication to the second radio network based on a first trigger. The method also includes handing off the wireless communication session from the second wireless communication to the first radio network based on a second trigger, wherein the second trigger is different than the first trigger.
Owner:SPRINT SPECTRUM LLC
Method for distributing security keys during hand-off in a wireless communication system
ActiveUS20070003062A1Well formedKey distribution for secure communicationUser identity/authority verificationTelecommunications linkCommunications system
The present invention provides a method of wireless communication involving at least one first base station associated with a first access serving network and at least one second base station associated with a second access serving network is provided. The method may include generating a first key associated with the first access serving network and the second base station, receiving information indicating that the first key is temporary, and establishing a communication link with the second base station using the first key.
Owner:NOKIA TECHNOLOGLES OY
Method and system for triggering handoff of a call between networks
InactiveUS7082301B2Eliminates and reducesMonitor qualityNetwork topologiesMultiple digital computer combinationsMobile stationComputer science
Owner:CISCO TECH INC
Method and apparatus for mobile station registration in a cellular communication system
InactiveUS20050111409A1Radio/inductive link selection arrangementsWireless commuication servicesCommunications systemCellular communication systems
A communication system provides for a mobile station (MS) to pre-register with a Serving GPRS Support Node (SGSN) servicing a neighboring Routing Area (RA) that is a handoff candidate. In pre-registering with the neighboring RA and SGSN, the MS at least partially registers with the RA and SGSN, that is, at least a portion of the MS's registration information is conveyed to the neighboring SGSN serving the neighboring RA, prior to the MS being served by an associated neighboring BSS 230, for example, prior to an initiation of a handoff of the MS to neighboring BSS 230. By pre-registering with the candidate SGSN, a duration of a registration process and the corresponding service disruptions when the MS is handed off to such an SGSN are reduced.
Owner:MOTOROLA INC
Using wake-up receivers for soft hand-off in wireless communications
Multiple standards based radio (“SBR”) devices, each having a high-gain directional antenna, are utilized in a remote sensor interface (“RSI”) unit to optimize detection and reception by the RSI of radio signals from gateway controllers, hopping radios, and other wireless devices.
Owner:GOOGLE LLC
Network Connection Hand-off Using State Transformations
ActiveUS20120239725A1Improve scalabilityImprove resource usageMultiple digital computer combinationsTransmissionServer agentNetwork connection
Some embodiments provide a director agent, a server agent, and a specialized hand-off protocol for improving scalability and resource usage within a server farm. A first network connection is established between a client and the director agent in order to receive a content request from the client from which to select a server from a set of servers that is responsible for hosting the requested content. A second network connection is established between the server agent that is associated with the selected server and a protocol stack of the selected server. The first network connection is handed-off to the server agent using the specialized hand-off protocol. The server agent performs network connection state parameter transformations between the two connections to create a network connection through which content can be passed from the selected server to the client without passing through the director.
Owner:EDGIO INC
Method and apparatus for performing idle mode reacquisition and handoff in an asynchronous communication system
InactiveUS20020006805A1Extend standby timeShorten the timePower managementEnergy efficient ICTAsynchronous communicationCommunications system
Techniques to efficiently process paging channels in an asynchronous wireless communication system. In one aspect, if the base stations are not synchronized with each other and a remote terminal's designated page time is different from base station to base station, the remote terminal can wake up based on the earliest base station in a reacquisition search list that includes candidate base stations to which the remote terminal may be handed off. In another aspect, the criteria to select base stations for evaluation as reacquisition targets may be based on the received power of the base stations as well as their timing, both of which may be made relative to that of a preferred base station. In yet another aspect, the remote terminal may wake up multiple times in a particular paging cycle (i.e., a frame cycle or a DRX cycle) if there are one or more candidates base station to which the remote terminal may be handed off.
Owner:QUALCOMM INC
Internet protocol tunneling on a mobile network
InactiveUS20070189219A1Wireless network protocolsRadio/inductive link selection arrangementsIp addressIPv6 packet
Systems and methods are provided for sending information in a first protocol over a network that supports a second protocol. A tunnel is used to provide a roaming mobile node with IPv6 packet data over an IPv4 core network. When the mobile node is handed off while roaming, the same IP address is provided to the mobile node and the IPv6 packet data is again tunneled over the IPv4 core network. Certain embodiments allow an IPv4 core network to support a mobile node that uses Simple IPv6 or MIPv6 addressing. This system and method can be applicable to situations where the mobile node uses addressing greater than 32 bits, while the core network supports 32 bit addressing.
Owner:CISCO TECH INC
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