Lucent Technologies Inc.

Spirent Communications, Inc.

Alcatel-lucent USA Inc.

Alcatel Lucent

Sandra Ramos Thuel

Ramachandran Ramjee

Thomas F La Porta

Kannan Varadhan

Peretz Moshe Feder

Kazutaka Murakami

Richard Wayne Buskens

Ramesh Viswanathan

Meenal Agarwal

Thomas Y Woo

Luca Salgarelli

Martin Havemann

Mun-Choon Chan

The disclosed technology teaches dispersion analysis of individual UE devices, measuring the span of cellular locations in a 5G network over which the bulk of a user's data, voice minutes and text messaging usage take place. Dispersion analysis also measures the span of cellular locations over which the bulk of a user's transactions and failed transactions take place, providing insights into camping behavior on specific cellular locations and hot spot formation. The technology disclosed includes new collection and filtering of location data to pinpoint cellular communication challenges encountered by users as well as system improvement and remediation opportunities. Additionally, this technology enables reporting of the detected behavior and related hot spots formation analysis with identifiers of UE mobile devices involved. The technology also applies to 3G 4G and future mobile networks and can be utilized for a group of UE devices selected for analysis, by device, geography, or affinity.

Measuring and using dispersion for user mobility analytics to improve management of cellular systems

The disclosed technology takes into account mobility behavior and interactions with a serving cellular network of a UE mobile device, when determining network interaction parameters for the UE, including providing an identifier of the UE to a NWDAF component that subscribes to receive notices that report changed or changing events, including a change in connectivity to any cell for any UE and any service usage on the cell and performs a dispersion analysis by analyzing the incoming notices to determine multiple dispersion indices as the UE mobile device changes its selection of a base station or a cell or a slice. Also included are network elements receiving the dispersion analysis for the UE mobile device and performing a policy update and/or a radio access network (RAN) decision for the UE mobile device based on at least the dispersion analysis. The technology also applies to 3G, 4G and future mobile networks.

Updating policy and radio access network decisions based on dispersion analytics of cellular systems

The disclosed technology teaches detecting abnormal behavior of a UE mobile device, including a network data analytics function component, in communication with core network components of a cellular network, subscribing to location change-related events that report a change event for a UE device connection to and/or drop or handover from a cell. Included is analyzing location change-related events to detect abnormal handover behavior when the UE device changes its selection of a base station or cell more than N times in not more than M minutes, and reporting the detected abnormal handover behavior with an identifier of the UE mobile device involved and the involved cell's ID. The technology also applies to a group of UE devices selected for analysis, by device, geography or custom-defined affinity, with selection changes among a set of base stations or neighboring cells, each selected at least twice by the UE device in M minutes.

Abnormal mobility pattern detection for misbehaving devices

Information can be transported over domains operated by different service providers at required Quality-of-Service (QoS) levels without disclosing inter- and/or intra-domain information to ensure that the topology of a given service provider's domain (e.g., network) is not disclosed.

Methods and devices for computing paths to assure the inter-domain transport of QoS sensitive information

Portable and/or mobile IP hosts desiring to connect to the Internet can dynamically acquire a home address and other configuration information through DHCP when powering up in a foreign network. A two-stage configuration procedure is used. First, the mobile host uses the M-IP protocol to establish contact with an addressing element, referred to as a bootstrapping agent, that is usually co-located with a M-IP Home Agent, and that allocates a temporary home address for the mobile host. The temporary address is used to create a temporary tunnel. Second, this temporary tunnel is used as the communication vehicle over which standard DHCP transactions take place. The present invention is thus arranged to use a) M-IP as the signaling mechanism for reaching the home network and dynamically allocating a temporary home address for the mobile host; and b) DHCP to allocate a permanent home address and any other configuration state for the mobile host.

Transient tunneling for dynamic home addressing on mobile hosts

A base station controller (BSC) of a radio or wireless telecommunications network base station includes a director. A BSC includes multiple central processing units (CPUs), with each CPU running a call-processing application for one or more connections. The director is a logical entity that intercepts wireless call-setup signaling and assigns each corresponding connection to a CPU according to a centralized load-balancing algorithm. The centralized load-balancing algorithm distributes connections to less loaded CPUs to i) prevent individual CPUs from overloading, ii) utilize otherwise unused system resources, and iii) increase overall system performance. The director hosts cell components that manage code division multiple access (CDMA) downlink spreading codes for a base station, providing centralized allocation of spreading codes by the base station.

Centralized cell homing and load balancing in a base station controller

Local mobility within a subnet is supported by classifying wireless base stations, and the routers used to forward packets to those base stations, within defined domains. Domains are defined to incorporate a subnet having a plurality of base stations. Base stations are used by mobile devices to attach to the wired portion of a packet-based network, such as the Internet, and exchange packets thereover with a correspondent node. Packets sent from the correspondent node to the mobile device have a packet destination address corresponding to the mobile device. The mobile device retains this address for the duration of time it is powered up and attached to the Internet via any base station within a given domain. Host-based routing is utilized to update routing table entries corresponding to the mobile device at routers incorporated within a single domain. The routing table entries are established and updated via path setup schemes to convey packets destined for the mobile device along the proper established path through the domain routers and base stations, regardless of the domain base station through which the mobile device is attached. Path setup schemes utilize power up, refresh, and handoff path setup messages to maintain the proper relationship between router interfaces and packet addresses for routing table entries.

Single phase local mobility scheme for wireless access to packet-based networks

Two phase local mobility scheme for wireless access to packet based networks

Domains are defined to incorporate a subnet including a plurality of base stations and routers. Base stations are used by mobile devices to attach to the wired portion of a packet-based network, such as the Internet, and exchange packets thereover with a correspondent node. Local mobility between domain base stations is provided by including and updating routing table entries at domain routers and base stations for forwarding packets having a mobile device's address as a destination address to the mobile device. Packets are delivered to the mobile device regardless of the domain base station to which the mobile device is attached. When a mobile device is attached to a base station included within a foreign domain, a care-of address is assigned, and packets are tunneled for delivery of packets to the mobile device. Only one care-of address is required per mobile device per foreign domain. Routing table entries used for packet delivery are updated on a purely local subnet basis within domains, whether home domain or foreign domain, making handoffs between base stations substantially transparent to the home agent and the correspondent node.

Growing community of inventors

Middletown, NJ, United States of America

Sandra Ramos Thuel