713 results about "Roaming" patented technology

A Mobile Station (MS) is able to vertically roam in either direction between two different network, i.e. WWAN and WLAN. The MS is equipped with a dual mode Radio for WWAN and WLAN transmissions. The WLAN Radio is linked to a WLAN Enterprise Gateway Controller (EGC) via a first air link and the WWAN Radio is linked to a WWAN Base Transceiver Station (BTS) via a second air link. The EGC is connected to a Mobile Switching Center (MSC) which is in turn connected to the BTS. An outgoing VoIP call from the WLAN Radio to a remote party on the WWAN will transition or seamlessly switch over to a WWAN connection when the MS detects packet error rates, frequent scale back or consistent signal degradation. Upon such conditions, the WLAN Radio requests the EGC to request an Explicit Call Transfer via the MSC to the MS integrated WWAN Radio portion which automatically accepts the call based on referenced information stored in the user's subscriber identification module (SIM). Once the WWAN Radio is confirmed connected to the remote party on the WWAN, the WLAN Radio drops the WLAN connection. An incoming call between the MS and a remote user via the WWAN will transition to the WLAN Radio when the MS enters WLAN coverage. The MS issues an ECT to the WLAN. After user verification by the WLAN Radio and the EGC signals acceptance of the call, the WWAN Radio connection is dropped and the call is now established between the WLAN Radio and the remote party on the WWAN.

A radio base station in a mobile communication network collects information about the network and exchanges data with a configuration device, the Internet System Manager (iSM). The iSM automatically configures and integrates the base station into the network by defining configuration parameter settings that allow fill interoperation of the base station with the network, with regards to roaming and handover in particular, without the need to add or modify parameter settings in other existing network elements. A very large number and high geographical density of such base stations is supported with full interoperation between them, allowing to overcome limitations of conventional mobile communication networks in this regard, by utilizing a certain combination of parameter settings and a new method to address the different base stations in the network.

An authentication method in a mesh AP including using standard IEEE 802.11i mechanisms between the mesh AP and an authenticator for authenticating the mesh AP to become a child mesh AP with a secure layer-2 link to a first parent mesh AP that has a secure tunnel to a Controller, including, after a layer-2 link between the child mesh AP and the first parent mesh AP is secured, undergoing a join exchange for form a secure tunnel between the child mesh AP and the Controller. Further, a fast roaming method for re-establishing a secure layer-2 link with a new parent mesh AP including, while the mesh AP is a child mesh AP to the first parent mesh AP and has a secure layer-2 link to the first parent mesh AP, caching key information and wireless mesh network identity information, and using the cached information to establish a secure layer-2 link with a new parent mesh AP without having to undergo a 4-way authentication. Further, while the mesh AP is a child mesh AP to the first parent mesh AP, has a secure layer-2 link to the first parent mesh AP, and has a secure tunnel to the Controller, caching session information on the secure tunnel, and using the cached information to re-establish the secure tunnel with the Controller, the secure tunnel now via the new mesh AP.

When a SET receives a positioning service from a V-SLP by performing a roaming from a H-SLP to the V-SLP in a SUPL-based positioning system, only a new TLS connection is generated using an abbreviated handshake protocol without generating anew TLS session after the roaming. That is, when opening a TLS session for ensuring security in a SUPL-based positioning method, in particular, when opening a new TLS session between the V-SLP (V-SPC) and the SET after opening the TLS session between the H-SLP and the SET, the key information having used in the previous TLS session is provided to the V-SLP to set a new TLS connection, thereby reducing a load of an entire system.

Methods and apparatuses enable maintaining wireless connectivity while the wireless client device is in a power save mode. The system includes a host operating system (OS) that handles wireless connections while the device is executing in normal operation, and an embedded agent that handles the wireless connections when the device switches to power saving operation and the host OS switches to a sleep or standby state. The system detects a change in the power save mode and triggers an exchange of session context information between the host OS and the embedded agent (from the host OS to the embedded agent when the system enters the power save mode, and from the embedded agent to the host OS when the system returns to normal operation from the power save mode). The system also triggers the switching of management consistent with the passing of session context information.

A method and system for virtual roaming for mobile communication devices. The mobile communication device may preferably roam between any two or more mobile communication networks, optionally in different countries.

In a cellular telephone environment where SIM cards are used, a single SIM card is provided with a mechanism for supporting conventionally separate services that employ separate SIM cards, such as international calling from various countries, wherein the SIM card is enabled so that the user can dynamically load local SIM information by accessing a remote server (through GPRS/2.5G/3G or by receiving SMS data over the air) and enable the handset to obtain local wireless services.

A system and method of mobile communication roaming where a subscriber's home network and a roaming network used by the subscriber do not have a roaming agreement. The roaming network sends a “Send Authentication/Parameters” request to the home network via an intelligent roaming system on or attached to the backbone. The home network sends an authentication response to the“Send Authentication/Parameters” request from the home network to the roaming network via the backbone and intelligent roaming system. The roaming network sends a “Update Location” request from the roaming network to the intelligent roaming system. The visitor locator register (VLR) address in the “Update Location” request is replaced with the VLR address of the intelligent roaming system to create a modified update request. The modified update request is sent from the intelligent roaming system to the home network. The home network sends an update response to the modified update request to the roaming network via the backbone and intelligent roaming system.

The invention concerns a method for automatically switching from a Home IMSI to a Roaming IMSI and vice versa, said Home IMSI and Roaming IMSI being contained in a SIM card adapted to be used in a mobile station and adapted to comprise elementary files, wherein it comprises the step of triggering the switch from one IMSI to another when detecting an update of the elementary file comprising forbidden public land mobile networks (EF_FPIMN)

The roaming of a wireless device 115 extends the effective range of a wireless network 100 by passing a device 115 between access points as the device leaves the coverage area of one and enters another. Roaming can be slow and problematic if an old link is disconnected prior to establishing a new link, especially if authentication and security is required. The present invention speeds up roaming by using existing mechanisms to initiate a new link with a new access point 120 prior to disconnecting the old link with an old access point 110.

Systems, methods and computer program products that enable efficient roaming of virtual mobile devices. In one embodiment, multiple PoP locations having a set of common master images are maintained. A communication from a mobile device received at a central facility identifies a user, a location and a type of the mobile device. The central facility determines performance measures for the PoP locations and identifies a preferred PoP location in response to the communication. If the preferred PoP location has available capacity, the central facility directs the preferred PoP location to provision resources and instantiate a virtual device from a selected master image corresponding to the mobile device. If the preferred PoP location persistently stores a user data volume for the user, the virtual device is attached to the stored user data volume. Otherwise, data is transferred from the user's data volume to a cache attached to the virtual device.

A system and method enabling service and application roaming are disclosed. A particular embodiment includes: unifying a plurality of user services and applications from a plurality of sources in an environment into a shared ecosystem of services and applications; assigning, by use of a data processor, a digital identity to the shared ecosystem of services and applications; detecting a context change in the environment causing a transition to a current context; causing a task set to be performed in response to the context change; and dispatching a set of interaction resources, corresponding to the task set, to present a state of the current context to a user by use of a plurality of interaction devices corresponding to the set of interaction resources, the set of interaction resources being accessed using the plurality of user services and applications in the shared ecosystem of services and applications.

One or more embodiments of the invention provide for an interactive geographic information system on a personal digital assistant (PDA). The system enables the viewing and interaction with geographic information on a PDA. Such information is available while the PDA is connected to a network (i.e., online) and while disconnected (i.e., offline). Embodiments provide the PDA with the functionality commonly available in a standard client comprised of a complete computer system. For example, embodiments provide raster maps for multiple zoom levels, with each zoom level comprising multiple tiles allowing for "virtual roaming" across a map. One or more embodiments also provide raster zooms (by scaling existing raster tiles), selectable vector geometry (for interacting and highlighting with user objects), geo-referencing information for map navigation, meta-data in the form of layer definitions (visibility, display attributes, etc.), links to object attributes in databases, links to object reports generated by corporate web servers, uploadable, sharable redlining data (created from scribbles on the field), offline access on a PDA, and a compact PDA database. Thus, one or more embodiments of the invention provide interactive maps and business objects that can be viewed and queried on a PDA, both in an online and offline mode.

This invention pertains to the field of Wireless Local Area Network (WLAN). This invention allows a secure connection of a user client station to a base unit. The secure connection comprises the use of authentication and encryption means. The base unit comprises a switching unit, at least one firewall, an authentication/encryption unit and at least one port device. The invention also provides a secure roaming scheme when a roaming is performed by a wireless user.

The present invention provides a system and method to provide Cloud roaming services. It allows Cloud services to be offered to requesters that are abstracted from the underlying Cloud provider used to fulfill those services. The present invention provides the ability for Cloud providers to be dynamically associated with currently available Cloud services for requesters. The system and method describes two scenarios—a pull and push model—to align requester required services to currently available services from Cloud providers. The requester has a profile determining a prioritized list of Cloud providers that may be used, or the primary Cloud provider may delegate services to a partner cloud. The algorithm of the invention shows how the provider decides which requesters have access to which services—based on current utilization and forecasting. Also, from a requester perspective, location, roaming, network bandwidth and requester processing capabilities (not all-inclusive) may be sent to the provider of Cloud services to determine whether a change is needed.

A radio base station in a mobile communication network collects information about the network and exchanges data with a configuration device, the Internet System Manager(iSM). The iSM automatically configures and integrates the base station into the network by defining configuration parameter settings that allow full interoperation of the base station with the network, with regards to roaming and handover in particular, without the need to add or modify parameter settings in other existing network elements. A very large number and high geographical density of such base stations is supported with full interoperation between them, allowing to overcome limitations of conventional mobile communication networks in this regard, by utilizing a certain combination of parameter settings and a new method to address the different base stations in the network.

The invention discloses a method and system for realizing wireless terminal roaming switch in a wireless local area network. The method provides a scheme for actively switching terminals STA on a network side, does not rely on the switch strategy of the terminals STA self, can actively control the roaming switch moment and the switched-to corresponding target access point (AP) by the network side, meanwhile does not need to scan, authenticate and associate the terminals STA again, and achieves the purposes of actively controlling the roaming switch of the terminals STA and shortening switch time delay by the network side.

A roaming method for a mobile terminal in a wireless local area network is disclosed. In the method, a target access point (AP) device receives an access request for roaming from the mobile terminal, and a target access controller (AC) obtains mobility information of the mobile terminal in an original extended service set based on the access request, wherein the mobility information include information of an AP device, an AC and a mobile agent server associated with the mobile terminal. Then the target AC determines whether the roaming for the mobile terminal is an inter-IP subnet roaming or an intra-IP subnet roaming based on the obtained mobility information. The target AC performs mobile IP based handover when the roaming is determined as the inter-IP subnet roaming and performs Inter Access Point Protocol based handover when the roaming is determined as the intra-IP subnet roaming.

The present invention enables a home network operator to control roaming of its subscribers. A mobile initiates a location update procedure by sending a “Location Updating” message containing an IMSI and a LAI to a MSC/VLR in a visited network. The MSC/VLR in turn sends an “UpdateLocation” message including the LAI, the IMSI, and a VLR address to a HLR in a home network. A Roaming Enhancement Node (REN) in the home network intercepts the “UpdateLocation” message and determines whether to continue registration based on the LAI in the message. If the mobile is roaming in a location area that is restricted, the REN sends a rejection response with a rejection cause to the MSC/VLR. The MSC/VLR in turn sends another rejection response with the same rejection cause to the mobile. If the mobile is roaming in a location area that is not restricted, the “UpdateLocation” message is forwarded to the HLR.

There are disclosed an international roaming method, a roaming processing device and a communication system for international roaming of an international roaming subscriber of a first operator in a third operator network. When the international roaming subscriber of the first operator provided with a first operator IMSI and a second operator IMSI. roams in the third operator network, the roaming processing device of a second operator modifies a first signaling message from a first operator network and carrying the first operator IMSI to a second signaling message carrying the second operator IMSI and transmits the second signaling message to the third operator network. and modifies a third signaling message from the third operator network and carrying the second operator IMSI to a fourth signaling message carrying the first operator IMSI and transmits the fourth signaling message to the first operator network. There is also disclosed a gateway device.

The invention relates to a streaming media application method in panoramic virtual reality roaming. Panoramic streaming media integrated with additional information is applied to panoramic virtual roaming and the panoramic virtual roaming with continuous viewpoints is realized. The streaming media application method in panoramic virtual reality roaming comprises the following steps of: 1) compressing and encoding image data by utilizing a streaming media video compressing and encoding manner and integrating the additional information; 2) determining an initial user roaming location, returningcorresponding streaming media file information to a client through inquiring a database, analyzing streaming media files, and establishing a data structure used for buffer management; and 3) displaying panoramic images and the additional information, and displaying additional information corresponding to each frame of panoramic image in panoramic virtual roaming in a manner of continuous viewpoints. According to the streaming media application method in panoramic virtual reality roaming, the panoramic images and the additional information are compressed into a streaming media format, thus thedefects of the traditional network-based panoramic virtual roaming are overcome, the user waiting time is shortened, and a novel technical line is provided for the network data transmission in panoramic virtual reality roaming.