公开(公告)号：US10462699B2

公开(公告)日：2019-10-29

申请号：US14480284

申请日：2014-09-08

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Mark Grayson ,  Srinath Gundavelli

IPC: H04W28/02 ,  H04W76/15 ,  H04L29/12 ,  H04W40/02 ,  H04W60/00 ,  H04W88/16 ,  H04W88/18

Abstract: An example method is provided in one example embodiment and may include receiving an attach trigger for a user equipment (UE) within a trusted access network; configuring a first signaling path for the UE for a first Internet protocol (IP) connection; and configuring a second signaling path for the UE for a second IP connection, wherein the first and second IP connections are associated with different IP version types. The method can include switching traffic for the UE between the first signaling path for the first IP connection and the second signaling path for the second IP connection based on IP version type of the traffic.

公开(公告)号：US20190327648A1

公开(公告)日：2019-10-24

申请号：US16458694

申请日：2019-07-01

Applicant: Cisco Technology, Inc.

Inventor： Srinath Gundavelli ,  Sangram Kishore Lakkaraju ,  Timothy Peter Stammers

IPC: H04W36/00 ,  H04L12/721 ,  H04W36/02 ,  H04L12/911

Abstract: End marker functionality may be provided in mobile networks having mobile user planes configured with segment routing for IPv6 (SRv6), especially suitable for 5G network migration. For example, a base station may receive an SRv6 control message from a user plane function (UPF) which carries data traffic of a data session for the UE. The base station may perform a function associated with a segment identifier (SID) identified in a segment routing header (SRH) of the SRv6 control message. The function may be an end marker handling function associated with an end marker SID. Performing the end marker handling function may cause the base station to generate a tunneling protocol message (e.g. according to GPRS tunneling protocol or GTP) comprising an end marker message and send the tunneling protocol message comprising the end marker message for receipt by the target base station.

公开(公告)号：US20190289508A1

公开(公告)日：2019-09-19

申请号：US15921533

申请日：2018-03-14

Applicant: Cisco Technology, Inc.

Inventor： Srinath Gundavelli ,  Sangram Kishore Lakkaraju ,  Timothy Peter Stammers

IPC: H04W36/00 ,  H04L12/721 ,  H04L12/911 ,  H04W36/02

Abstract: End marker functionality may be provided in mobile networks having mobile user planes configured with segment routing for IPv6 (SRv6), especially suitable for 5G network migration. For example, a base station may receive an SRv6 control message from a user plane function (UPF) which carries data traffic of a data session for the UE. The base station may perform a function associated with a segment identifier (SID) identified in a segment routing header (SRH) of the SRv6 control message. The function may be an end marker handling function associated with an end marker SID. Performing the end marker handling function may cause the base station to generate a tunneling protocol message (e.g. according to GPRS tunneling protocol or GTP) comprising an end marker message and send the tunneling protocol message comprising the end marker message for receipt by the target base station.

公开(公告)号：US10419982B1

公开(公告)日：2019-09-17

申请号：US15921533

申请日：2018-03-14

Applicant: Cisco Technology, Inc.

Inventor： Srinath Gundavelli ,  Sangram Kishore Lakkaraju ,  Timothy Peter Stammers

IPC: H04W36/00 ,  H04W36/02 ,  H04L12/911 ,  H04L12/721

Abstract: End marker functionality may be provided in mobile networks having mobile user planes configured with segment routing for IPv6 (SRv6), especially suitable for 5G network migration. For example, a base station may receive an SRv6 control message from a user plane function (UPF) which carries data traffic of a data session for the UE. The base station may perform a function associated with a segment identifier (SID) identified in a segment routing header (SRH) of the SRv6 control message. The function may be an end marker handling function associated with an end marker SID. Performing the end marker handling function may cause the base station to generate a tunneling protocol message (e.g. according to GPRS tunneling protocol or GTP) comprising an end marker message and send the tunneling protocol message comprising the end marker message for receipt by the target base station.

公开(公告)号：US20190268952A1

公开(公告)日：2019-08-29

申请号：US15904182

申请日：2018-02-23

Applicant: Cisco Technology, Inc.

Inventor： Sangram Kishore Lakkaraju ,  Vimal Srivastava ,  Vivek Pise ,  Srinath Gundavelli

IPC: H04W76/12 ,  H04L12/46 ,  H04W76/11 ,  H04W88/06

Abstract: In one implementation, the method comprises, in response to obtaining a request to associate an electronic device with the one or more WLAN termination nodes: generating, between a base station and a networking device, a control link based on a first identifier associated with the base station; generating, between the networking device and a first WLAN termination node, a control link based on a second identifier that corresponds to a pseudonym for the base station; and associating the first and second identifiers in a control table. The method further comprises: instantiating, between the base station and the networking device, a first data tunnel associated with a first tunneling protocol; instantiating, between the networking device and the first WLAN termination node, a second data tunnel associated with a second tunneling protocol; and associating the first and second data tunnels.

公开(公告)号：US20190268375A1

公开(公告)日：2019-08-29

申请号：US15906288

申请日：2018-02-27

Applicant: Cisco Technology, Inc.

Inventor： Srinath Gundavelli ,  Nandini Ganesh ,  Pradeep Kathail

IPC: H04L29/06 ,  H04W12/08 ,  H04W12/06

Abstract: A policy server determines and explicitly provides a source host with a multipath access policy. The policy server obtains a notification that the source host is connected to an access network. The notification includes authentication credentials of a user of the source computing device. The policy server determines a multipath policy based on the authentication credentials. The multipath policy determines whether data flows from the source host are transmitted over multiple network connections. The policy server determines a set of one or more multipath proxy devices based on the authentication credentials, and provides an access policy to the source host. The access policy includes the multipath policy and network addresses associated with the multipath proxy devices.

公开(公告)号：US20190191329A1

公开(公告)日：2019-06-20

申请号：US15844655

申请日：2017-12-18

Applicant: Cisco Technology, Inc.

Inventor： Srinath Gundavelli ,  Vimal Srivastava

IPC: H04W28/02 ,  H04L12/851 ,  H04W28/16 ,  H04W72/10 ,  H04W72/08

CPC classification number: H04W28/0268 ,  H04L12/1407 ,  H04L47/24 ,  H04L47/2441 ,  H04L63/0272 ,  H04L65/80 ,  H04M15/57 ,  H04M15/66 ,  H04M15/77 ,  H04M15/80 ,  H04W28/16 ,  H04W72/087 ,  H04W72/10 ,  H04W76/12 ,  H04W76/22

Abstract: In one embodiment, an apparatus comprising networking circuitry adapted to receive, at a mobile network operated by an SP, flows associated with enterprise applications executing on device(s) in an enterprise network, the device(s) including a CPE and/or one or more devices behind the CPE, and processing circuitry adapted to vary, during a duration in which there is IP connectivity between the CPE and the mobile network, a pool of dedicated bearers for binding the flows, in response to at least part of changes occurring during the duration with respect to the flows, wherein the changes include variations during the duration in number of the flows and/or differences during the duration in detected characteristics of the flows, the detected characteristics of the flows having been detected based on inspection of respective packet(s) of the flows, and bind at least part of the flows to respective dedicated bearers included in the pool.

公开(公告)号：US10172011B2

公开(公告)日：2019-01-01

申请号：US15367051

申请日：2016-12-01

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Shwetang Sureshkumar Acharya ,  Raghavendra Kankanhalli Sudheendra ,  Nalini Sankaranarayanan ,  Rajaguru Veluchamy ,  Srinath Gundavelli

IPC: H04W16/14 ,  H04W48/16

Abstract: An example apparatus for control channel determination and detection in an opportunistic wireless network environment is provided and includes a processor; and a memory in communication with the processor. The processor configured is to send, by a first device, a request for a whitespace map, the whitespace map including a list of whitespace frequency channels available for use within a particular geographical area. The processor is further configured to receive the whitespace map by the first device, and determine, by the first device, a control channel map from the whitespace map using a probability algorithm. The control channel map is a subset of the white space map and includes a list of control channel frequencies.

公开(公告)号：US10009751B2

公开(公告)日：2018-06-26

申请号：US14981585

申请日：2015-12-28

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Srinath Gundavelli ,  Vojislav Vucetic ,  Kent K. Leung

IPC: H04W8/04 ,  H04W12/06 ,  H04W48/16 ,  H04W8/08 ,  H04W8/18 ,  H04W8/02 ,  H04W8/26

CPC classification number: H04W8/04 ,  H04W8/02 ,  H04W8/08 ,  H04W8/18 ,  H04W8/26 ,  H04W12/06 ,  H04W48/16

Abstract: Embodiments are directed to a virtual mobility anchor network element to receive, from a packet gateway (PGW) node, a request for an internet protocol (IP) address for a mobile device, establish an IP address for the mobile device; and provide the IP address to the PGW node in response to the request for the IP address for the mobile device. The virtual mobility anchor network element is configured to receive IP traffic from a network location; determine a target destination for the IP traffic based on a destination IP address, the destination IP address comprising the second IP address; and forward the IP traffic to the PGW node associated with the destination IP address. The virtual mobility anchor network element is also configured to receive IP traffic from the PGW node; determine a target destination for the IP traffic; and route the IP traffic to the target destination.

公开(公告)号：US20180160415A1

公开(公告)日：2018-06-07

申请号：US15371016

申请日：2016-12-06

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Shwetang Sureshkumar Acharya ,  Raghavendra Kankanhalli Sudheendra ,  Nalini Sankaranarayanan ,  Rajaguru Veluchamy ,  Srinath Gundavelli

IPC: H04W72/04

CPC classification number: H04W72/0406 ,  H04W16/14 ,  H04W72/0453

Abstract: An example apparatus for discovery and acquisition of a control channel using guard bands is provided and includes a processor; and a memory in communication with the memory. The processor configured is to determine that a whitespace map is unavailable for communication between a first device and a second device; determine that a guard band is to be used for a control channel between the first device and the second device; send a first message to the second device including an indication to the second device that the second device is use a guard band to maintain communication with the first device; and send a second message to the second device including control channel tuning information associated with the guard band.