Research in Motion Corporation

Blackberry Corporation

Marc Plumb

Ian M Patterson

Allan David Lewis

James Andrew Godfrey

Herb A Little

Graeme Whittington

Sean Arthur Daniel Carlos Goggin

Neil Patrick Adams

Michael Kenneth Brown

David Bajar

Wen Gao

Simon Tyler Wise

Seán Arthur Daniel Carlos Goggin

Arun Munje

David Clark

Christopher Smith

Robbie John Maurice

Michal A Rybak

Thomas Leonard Trevor Plestid

Allen David Lewis

Thomas Leonard Plestid

Thomas Leonard Trevor Plesid

Ian Michael Pattersson

David R Clark

Sean Arthur Goggin

Ian Michael Patterson

David Anthony Bajar

In a network having a plurality of subscriber devices, a plurality of base stations and a server, a system and method of modifying policy settings are provided. Each base station transmits wirelessly across a geographic region. A subscriber device, capable of roaming between regions, establishes a wireless link with the server via the base stations. The network contains a communication policy determining from which other communication devices a subscriber device can receive voice calls. The server updates the policy based on requests from subscriber devices. The determination of whether to update the policy can be based on a record of rejections respective to the caller requested to be blocked. Alternatively, the policy can be updated according to a trust policy maintained on the server respective to the subscriber device making the request; the trust policy represents the procedure to follow when a request is received from that subscriber device.

System and method of maintaining communications policy settings in a wireless network

The present invention provides a system and method of modifying policy settings in a network having a plurality of subscriber devices. An embodiment includes a plurality of base stations, each capable of wirelessly transmitting across a geographic region. A cell-phone, capable of roaming between regions is operable to establish a wireless link with the base stations. The network contains a communication policy determining from which other communication devices a subscriber device can receive voice calls. A copy of this policy is stored on each subscriber device as a database and periodically updated as the devices make contact with the base stations or other subscriber devices. When receiving a voice call, the device first determines who the originator of the call is and then determines whether it is allowed to receive the call from that originator according to its policy database. The policy database can be updated either by subscriber devices or by base stations.

System and method of modifying communications policy settings in a wireless network

The present invention provides a system and method of modifying policy settings in a network having a plurality of subscriber devices. An embodiment includes a plurality of base stations, each capable of wirelessly transmitting across a geographic region and a server. A cell-phone, capable of roaming between regions, is operable to establish a wireless link with the base stations and through the base stations, with the server. The network contains a communication policy determining from which other communication devices a subscriber device can receive voice calls. The communication policy is updated, by the server, based on requests from the subscriber devices. Once a request is received from a subscriber device, the determination whether to update the communication policy can be based on a record of rejections respective to the caller requested to be blocked. Alternatively, the communication policy can be updated according to a trust policy maintained on the server respective to the subscriber device making the request; the trust policy represents the procedure to follow when a request is received from that subscriber device.

System and method of managing communications policy settings in a wireless network

A router is operative to perform the following actions for each one of a plurality of wireless mobile devices operating in a wireless network. The router transmits to the wireless mobile device a number of data packets matched for a window size. The router changes the window size for the wireless mobile device based on whether a round trip time for communicating the data packets is within a threshold value. The router will update the threshold value based on the round trip times associated with traffic communicated via the router for all of the wireless mobile devices.

Methods and apparatus for dynamically adjusting a data packet window size for data packet transmission in a wireless communication network

In one embodiment, a method operable on a mobile communications device is disclosed, the method comprising generating an authentication key for securing a personalized indicium assigned to the mobile communications device, wherein the personalized indicium comprises a Personal Information Number (PIN) that is mapped to at least one identifier associated with the mobile communications device; transmitting a registration request to a network node operable with a wireless network, the registration request having a registration request payload including the authentication key; receiving a challenge message from the network node, the challenge message generated when the network node detects a change of the IP address associated with the mobile communications device, and responsive to receiving the challenge message, executing a challenge response including an authentication value of a challenge string transmitted in the challenge message, wherein the authentication value is created using the authentication key.

System and method for securing a personalized indicium assigned to a mobile communications device

A router is operative to perform the following actions for each one of a plurality of wireless devices operating in a wireless network. The router initially transmits a number of data packets matched for a window size which corresponds to a default window size. The router then measures a round trip time (RTT) associated with communication of each of the transmitted packets. The router increases the window size if the RTT associated with the communication of each of the transmitted packets is within a first threshold. On the other hand, the router decreases the window size if the RTT associated with the communication of any of the transmitted packets is more than the first threshold but less than a second threshold. The router sets or updates at least one of the first or the second thresholds based on traffic communicated to the plurality of wireless devices via the router.

A method of communicating between a mobile communications device and a plurality of services that are used by the mobile communications device. The method includes establishing, through a firewall and a wireless network, a first communications session between the mobile communications device and a mobile server located in an enterprise network with which the mobile communications device is associated; and establishing, concurrent with the first communications session at least one further communications session between the mobile server and a service, the at least one further communications session being established by the mobile server as a session proxy for the mobile communications device.

Mobile server with multiple service connections

In one embodiment, a scheme is provided for assigning a personalized indicium to a mobile communications device which includes logic means operable to generate a temporary Personal Information Number (PIN) for transmitting in a request to a network node. Upon validating the request, a response is provided by the network node to the mobile communications device, the response including a permanent PIN assigned to the mobile communications device.

System and method for assigning a personalized indicium to a mobile communications device

In one embodiment, a scheme is provided for securing a personalized indicium assigned to a mobile communications device. Upon detecting at a network node that an address associated with the mobile communications device has changed, a challenge-and-response procedure is negotiated between the mobile communications device and the network node for authenticating the personalized indicium using a shared authentication key.

In one embodiment, a scheme is provided for porting a personalized indicium, i.e., a Personal Information Number or PIN, from a first mobile communications device to a second mobile communications device. Upon receiving identity information from the first mobile communications device via a secure peer-to-peer communication session, the second mobile communications device is operable to negotiate with a network node using at least a portion of the received identity information for reassigning the PIN to an identifier associated therewith. Upon successfully porting the PIN to the second mobile communications device, a service provisioning database is accordingly updated.

System and method for porting a personalized indicium assigned to a mobile communications device

In one embodiment, a method is provided for managing secure registration of a mobile communications device, the method comprising registering, at a network node, the mobile communications device using a first registration process, the first registration process requiring an authentication key associated with the mobile communications device; processing a request from the mobile communications device, the request including an indication that the mobile communications device is changing to a second registration process; and clearing the authentication key associated with the mobile communications device upon expiration of a time window.

System and method for managing secure registration of a mobile communications device

In one example, a method in a wireless router system for transmitting data packets to a mobile device through a wireless network based upon a round trip time is provided. A number of packets matched for a window size are transmitted to the mobile device, and a round trip time is measured. The window size for data packet transmission is re-sized by increasing the window size if the round trip time is within a first threshold, and decreasing the window size if the round trip time is more than the first threshold but less than a second threshold. The window size is also decreased if the round trip time is more than the second threshold, where each such data packet is further marked as a lost packet. A number of packets matched for the re-sized window is subsequently transmitted, including a retransmission any packets marked as lost.

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Waterloo, Canada

Marc Plumb