公开(公告)号：US09755843B2

公开(公告)日：2017-09-05

申请号：US14614500

申请日：2015-02-05

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Konstantin Livanos ,  Ian McDowell Campbell

IPC: H04L12/16 ,  H04L12/14 ,  H04M15/00 ,  H04W4/24 ,  H04L12/24 ,  H04L29/08

CPC classification number: H04L12/1407 ,  H04L41/0893 ,  H04L67/10 ,  H04L67/1002 ,  H04M15/66 ,  H04W4/24

Abstract: A method is provided in one example embodiment and may include establishing a first binding for a first session for a UE, wherein the first binding includes, at least in part, PCEF connectivity information for a PCEF associated with a PGW hosting the first session for the UE, wherein the first binding is established by a first DRA in a first IP domain; receiving a request by second DRA in a second IP domain associated with establishing a second session for the UE; determining a PCRF serving the first session for the UE; and binding the second session for the UE with the first session for the UE. A method is provided in another example embodiment and may include exchanging PCEF connectivity information over a Dr interface between a plurality DRAs and maintaining PCEF connectivity information for one or more peer DRAs to which each DRA is connected.

公开(公告)号：US09621362B2

公开(公告)日：2017-04-11

申请号：US14612827

申请日：2015-02-03

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Konstantin Livanos ,  Ian McDowell Campbell

IPC: H04L12/16 ,  H04L12/14 ,  H04M15/00 ,  H04W4/24 ,  H04L12/24 ,  H04L29/08

CPC classification number: H04L12/1407 ,  H04L41/0893 ,  H04L67/10 ,  H04L67/1002 ,  H04M15/66 ,  H04W4/24

Abstract: A method is provided in one example embodiment and may include establishing a first binding for a first session for a UE, wherein the first binding includes, at least in part, PCEF connectivity information for a PCEF associated with a PGW hosting the first session for the UE, wherein the first binding is established by a first DRA in a first IP domain; receiving a request by second DRA in a second IP domain associated with establishing a second session for the UE; determining a PCRF serving the first session for the UE; and binding the second session for the UE with the first session for the UE. A method is provided in another example embodiment and may include exchanging PCEF connectivity information over a Dr interface between a plurality DRAs and maintaining PCEF connectivity information for one or more peer DRAs to which each DRA is connected.

公开(公告)号：US11677881B2

公开(公告)日：2023-06-13

申请号：US17022724

申请日：2020-09-16

Applicant: Cisco Technology, Inc.

Inventor： Konstantin Livanos ,  Swapna Anandan

IPC: H04M15/00 ,  H04L43/065 ,  H04W4/24

CPC classification number: H04M15/765 ,  H04L43/065 ,  H04M15/43 ,  H04M15/58 ,  H04M15/8214 ,  H04M15/64 ,  H04M15/65 ,  H04M15/66 ,  H04W4/24

Abstract: Methods, apparatus, and systems for the process-efficient generation of data records for data communications involving groups or aggregates of user equipment (UE), such as IoT devices, are described. In one illustrative example, for each one of a plurality of UEs associated with a group or aggregation identifier (ID), a request which includes data indicative of a network resource usage event of the UE is received and the data are stored in association with the group or aggregation ID. In response to identifying a predetermined condition, the data indicative of the network resource usage events associated with the group or aggregation ID are aggregated, and a request for generating a data record based on the aggregated data is sent to a data function for generating the data record. The generated data record (e.g. a CDR) may be stored for subsequent retrieval for reporting, analysis, network/communications management, or billing.

公开(公告)号：US11240728B2

公开(公告)日：2022-02-01

申请号：US16599789

申请日：2019-10-11

Applicant: Cisco Technology, Inc.

Inventor： Konstantin Livanos

IPC: H04W40/12 ,  H04W28/08 ,  H04W28/02 ,  H04W4/70 ,  H04L12/721 ,  H04W48/18 ,  H04L12/803 ,  H04L29/08 ,  H04W4/14 ,  H04L12/801

Abstract: In some implementations, a message indicating a request for delivery of data to user equipment (UE) (e.g. an IoT device) operative for communications in a mobile network may be received from an application server. One or more first loading or congestion indication values indicative of a first loading or congestion at one or more first network nodes along a first mobile network route may be obtained. In addition, one or more second loading or congestion indication values indicative of a second loading or congestion at one or more second network nodes along a second mobile network route may be obtained. The first or the second mobile network route may be selected based on at least one of the one or more first and the second loading or congestion indication values. The data may be delivered to the UE over the selected mobile network route.

公开(公告)号：US11121911B2

公开(公告)日：2021-09-14

申请号：US16359847

申请日：2019-03-20

Applicant: Cisco Technology, Inc.

Inventor： Konstantin Livanos ,  Ian McDowell Campbell ,  Charles C. Wolfinger

IPC: H04L12/24 ,  H04W4/24 ,  H04L12/14 ,  H04L12/26 ,  H04M15/00 ,  H04W24/04 ,  H04L29/12 ,  H04W88/16

Abstract: A method is provided in one example embodiment and may include maintaining, by a Diameter Routing Agent (DRA), an availability status for a plurality of network elements; receiving a request associated with a user equipment (UE) session, wherein a first network element of the plurality of network elements is serving the UE session; determining that the first network element serving the UE session is unavailable; and re-establishing the UE session at a second network element of the plurality of network elements that is available, wherein the re-establishing is performed without terminating the UE session.

公开(公告)号：US10805178B2

公开(公告)日：2020-10-13

申请号：US15823144

申请日：2017-11-27

Applicant: Cisco Technology, Inc.

Inventor： Konstantin Livanos ,  Ian McDowell Campbell ,  Malgorzata Kaczmarska-Wojtania

IPC: H04L12/24 ,  H04W76/10 ,  H04L29/08 ,  H04W4/70 ,  H04W28/16 ,  H04W60/04 ,  H04W60/06 ,  H04W60/00

Abstract: Subscription-based, user equipment (UE) event notification techniques for use in a mobile network are described. In one illustrative example, an event subscription request from an application server may be received at a network exposure function (NEF) entity of a 5G mobile network. The event subscription request may include a list of one or more subscribed events for a UE, which may include a UE attach event and/or a UE detach event. A context which indicates the one or more subscribed events may be created for the UE. Sometime during network operation, an indication of an occurrence of an event associated with the UE is received. The indication is received from a policy and charging function (PCF) entity when the UE is configured for IP data delivery, or from an access and mobility management function (AMF) entity when the UE is configured for non-IP data delivery (NIDD).

公开(公告)号：US10142886B2

公开(公告)日：2018-11-27

申请号：US15282857

申请日：2016-09-30

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Konstantin Livanos ,  Ian McDowell Campbell

IPC: H04W28/08 ,  H04L12/14 ,  H04L12/801 ,  H04L12/26 ,  H04W28/02

Abstract: A method is provided in one example embodiment and may include receiving load information for a plurality of cells of a Radio Access Network (RAN); determining, for each of a plurality of user equipment (UE) in each cell, identification information for each UE and an Access Point Name (APN) to which each UE is connected; identifying, from a plurality of policy servers, each policy server that serves each APN to which each UE in each cell of the plurality of cells is connected; and sending, to each of a particular policy server, congestion information comprising: an identity for each cell having UE that are connected to each APN served by the particular policy server; the corresponding congestion level for each of the cells; and a per-cell UE list identifying each of a plurality of UE connected to each of APNs served by the particular policy server.

公开(公告)号：US20180098276A1

公开(公告)日：2018-04-05

申请号：US15282823

申请日：2016-09-30

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Konstantin Livanos ,  Ian McDowell Campbell ,  Robert Glenn Smith

IPC: H04W48/18 ,  H04W4/02 ,  H04W48/08

CPC classification number: H04W48/18 ,  H04W4/025 ,  H04W48/08 ,  H04W48/14

Abstract: An example method is provided in one example embodiment and may include provisioning a user equipment (UE) with a list comprising one or more locations at which the UE is to report its location; reporting a location of the UE when the location is identified in the list; provisioning the UE with one or more access network selection policy based on the reported location of the UE; and applying at least one access network selection policy at the UE based on the location of the UE. The list comprising the one or more locations can be sent to the UE from an Access Network Discovery and Selection Function (ANDSF) server after the UE reports its location to the ANDSF server. The one or more access network selection policies can be permanent type and/or temporal type policies.

公开(公告)号：US11729586B2

公开(公告)日：2023-08-15

申请号：US17004376

申请日：2020-08-27

Applicant: Cisco Technology, Inc.

Inventor： Konstantin Livanos ,  Ian McDowell Campbell ,  Malgorzata Kaczmarska-Wojtania

IPC: H04W4/08 ,  H04W76/12 ,  H04W48/00 ,  H04W76/40 ,  H04W8/04 ,  H04W8/18 ,  H04W60/04 ,  H04W4/70

CPC classification number: H04W4/08 ,  H04W8/04 ,  H04W8/186 ,  H04W48/00 ,  H04W76/12 ,  H04W76/40 ,  H04W4/70 ,  H04W60/04

Abstract: Methods and apparatus for use in establishing a group session in a mobile network for subscribers associated with a group are described. In one illustrative example, an access and mobility management function (AMF) entity receives, from a user equipment (UE), a request for registration which includes network slice selection assistance information (NSSAI). The NSSAI includes a group identifier associated with a group of subscribers. The AMF entity sends, to a unified data management (UDM) entity, a request for subscriber data which includes the group identifier. The AMF entity receives, from the UDM, a response to the request for subscriber data which includes a plurality of subscriber identifiers corresponding to the subscribers of the group. For a group session, the AMF entity creates a context associated with the group identifier and stores the context locally.

公开(公告)号：US11310318B2

公开(公告)日：2022-04-19

申请号：US17004525

申请日：2020-08-27

Applicant: Cisco Technology, Inc.

Inventor： Konstantin Livanos ,  Ian McDowell Campbell ,  Swapna Anandan

IPC: H04L29/08 ,  H04W4/08 ,  H04W8/18 ,  H04L12/24 ,  H04L29/12 ,  H04W4/50 ,  H04W4/70 ,  H04W48/18 ,  H04L67/125 ,  H04L41/0893 ,  H04L61/4588 ,  H04L61/5069 ,  H04L41/085 ,  H04L41/5051 ,  H04L101/654 ,  H04L67/12 ,  H04L101/65

Abstract: In one illustrated example, automated or semi-automated system operations for Massive IoT (MIoT) deployment may involve the automatic assignment of external IDs, subscriber IDs (e.g. IMSIs), and mobile network IDs (e.g. MSISDNs) to IoT devices of a group, followed by the provisioning of assigned identities at the relevant network nodes and the IoT devices themselves. The process may continue seamlessly with network slice orchestration for the creation of a network slice instance (NSI) and the provisioning of its associated Network Slice Selection Assistance Information (NSSAI) and NSI ID at the relevant network nodes. Network Slice Selection Policies (NSSP) may be derived and sent to a policy function and subsequently to IoT devices of the group. Signaling efficiency may be achieved by performing operations on a group basis.