Blackberry Corporation

Malikie Innovations Limited

Research in Motion Corporation

Jan Hendrik Lucas Bakker

Adrian Buckley

Andrew Michael Allen

Nicholas James Russell

Stefano M Faccin

Michael Peter Montemurro

Stephen John McCann

Gordon Peter Young

Richard Charles Burbidge

Chen Ho Chin

Noun Choi

Muhammad Khaledul Islam

Barry W Linkert

Nicholas Alfano

Brian Edward Anthony McColgan

Suresh Chitturi

Brian Edward McColgan

Young Ae Kim

Nigel Barnes

Alex Shatsky

Zhijun Cai

James Earl Womack

Jean-Philippe Paul Cormier

Jeffrey William Wirtanen

Richard John George

Rene Waraputra Purnadi

Maiyuran Wijayanathan

Douglas Michael Gisby

Claude Jean-Frederic Arzelier

Wei Wu

Ozgur Ekici

Gaelle Christine Martin-Cocher

Xiaoming Zhao

Alexander Shatsky

Gaëlle Christine Martin-Cocher

Nicholas Patrick Alfano

William David Castell

Ian James McDonald

Youngae Kim

David Lloyd Heit

Darko Joseph Lisak

Bhabani Sankar Panda

A method for steering of roaming (SOR) in wireless communication networks includes sending by a mobile equipment (ME) a registration message to a visited public land mobile network (VPLMN). The ME receives a first message from a home public land mobile network (HPLMN) through the VPLMN. The ME determines that the first message has failed a security check. In response to determining that the first message has failed the security check, the ME sends a second message to the VPLMN, the second message including an indication that the first message has failed the security check.

Steering of roaming in wireless communication networks

Described herein is a system and method in a user equipment (UE) supporting registration using third generation partnership project (3GPP) access and using non-3GPP access, the method comprising storing, in a memory of the UE, first emergency information received using first registration procedures; receiving, by the UE, a REGISTRATION ACCEPT message using second registration procedures via non-3GPP access; and keeping, in the memory, the first emergency information after receiving the REGISTRATION ACCEPT message.

Managing local emergency numbers

A method comprising transmitting, by a user equipment (UE) to a network node, a registration message comprising at least one of a first indicator configured to indicate emergency call information display capability, a second indicator configured to indicate language information, or a third indicator configured to indicate a status of previously received emergency information, and receiving, by the user equipment from the network node, a registration accept message.

Support of emergency number descriptions

There is provided a method and device for provisioning emergency number information on a user equipment. When a dialed number matches an emergency number from the provisioned emergency number information, the user equipment selects either the circuit switched domain or the packet switched domain and executes a call setup procedure for that domain.

Methods and systems for provisioning emergency numbers

In some examples, a user equipment (UE) is capable of dual registration with a first core network and a second core network. The UE receives a first indication during a first registration of the UE via a first access network with the first core network, determines based on the first indication that emergency services are not supported by the first core network, attempts a second registration via a second access network with the second core network, detects an emergency indication, and initiates a call in response to the emergency indication via a second access network different from the first access network.

Emergency services handling

A server-implemented method is disclosed. The method includes: receiving a request from an IP Multimedia Subsystem (IMS) network node of an IMS network; and in response to receiving the request, providing NAS registration state information associated with a user equipment (UE) to the IMS network node, the NAS registration state information indicating at least one of fourth-generation (4G) single radio voice call continuity (SRVCC) capability of the UE or fifth-generation (5G) SRVCC capability of the UE that is applicable when using an access network supported by a core network, wherein the server is configured to store separate instances of UE SRVCC capabilities, the separate instances including indications of at least one of 4G UE SRVCC capability or 5G UE SRVCC capability that is applicable when using the access network supported by the core network, and wherein the UE is registered with the IMS network using a session initiation protocol (SIP) via the access network.

Enabling single radio voice call continuity (SRVCC) in a second access when a user equipment (UE) is using a first access

A method at a user equipment for obtaining emergency codes using a non-Third Generation Partnership Project (3GPP) network, the method including sending a request message to a network node, the request message containing an indication; and receiving, at the user equipment, a response message, the response message including at least one mobile country code (MCC), and the response message indicating an emergency number, type or category information, wherein the emergency number, type or category information is associated with the at least one MCC, and wherein the at least one MCC indicates a portion of a Public Land Mobile Network (PLMN) code to which the emergency number, type or category information applies.

Method and apparatus for providing emergency codes to a mobile device

Methods and devices for encoding a point cloud. A current node associated with a sub-volume is split into further sub-volumes, each further sub-volume corresponding to a child node of the current node, and, at the encoder, an occupancy pattern is determined for the current node based on occupancy status of the child nodes. A probability distribution is selected from among a plurality of probability distributions based on occupancy data for a plurality of nodes neighbouring the current node. The encoder entropy encodes the occupancy pattern based on the selected probability distribution to produce encoded data for the bitstream and updates the selected probability distribution. The decoder makes the same selection based on occupancy data for neighbouring nodes and entropy decodes the bitstream to reconstruct the occupancy pattern.

Supported extended emergency information type

Described herein are systems and methods to increase battery life of a user equipment (UE) by reducing the amount of time a UE spends in active time listening for paging messages following mobile originate (MO) or mobile terminated (MT) data transfers. A network node may receive, from a UE, a message including an identifier of the UE and a request to set the duration of an active time timer to zero. The network node may determine whether any MT traffic is available for the UE, and send a message to the UE including the duration of the active time timer or some other indicator to indicate to the UE whether or not MT data is awaiting transmission.

Increasing battery performance for a device that uses power saving features

An embodiment provides a user equipment that includes a processor configured to receive a Session Initiation Protocol (SIP) NOTIFY message transmitted by a network component as a result of a registration event. The SIP NOTIFY message contains at least a portion of information included in a first SIP message sent between a first user equipment and the network component. Another embodiment provides method and apparatus for a network node to determine whether filter criteria include one or more indicators that specify the need for information, and including in a second SIP message the information specified by the one or more indicators.

Providing session initiation protocol request contents method and system

A method for selecting a Public Land Mobile Network (PLMN) at a user equipment (UE), comprising receiving, from a network entity, a list of PLMN identifiers, attempting to register the UE with a network using at least one PLMN identifier from the list of PLMN identifiers, and if the attempt to register with the network is successful, performing a Session Initiation Protocol (SIP) registration to an Internet Protocol (IP) Multimedia Sub-system (IMS) associated to the PLMN identifier.

PLMN selection for mission critical devices

A method for performing initial registration is provided. The method includes receiving a server timeout message, the server timeout message including at least a field set to a value equal to a value received during a first registration. The method further includes initiating restoration procedures by performing an initial registration.

System and method for determining trust for SIP messages

A method for providing a user agent (UA) with service identification data. The method includes an application server (AS) transmitting Session Initiation Protocol (SIP) data. The SIP data comprises an identifier of the AS and a service identifier for at least one service supported by the AS. The method further includes the UA receiving the SIP data.

System and method for sharing a SIP communication service identifier

Growing community of inventors

Keller, TX, United States of America

Jan Hendrik Lucas Bakker