Patents by Inventor Sandro Grech

Sandro Grech has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20150358871
    Abstract: An example method is provided in one example embodiment and includes receiving a request to relocate a user equipment (UE) from a source macro radio to an ambiguous small cell access point (AP), wherein the request includes a target cell identity (ID) encoded with a source macro cell identifier for the source macro radio and a target sub-carrier identifier for the ambiguous small cell AP; determining potential target small cell APs for relocation of the first UE using the using the first target cell ID, wherein each of the potential target small cell APs are within a coverage area of the source macro radio and operate using the target sub-carrier identifier; and preparing, for each of the potential target small cell APs, a common channel to receive relocation of the first UE. The first UE can relocate to a particular target small cell access point using the common channel.
    Type: Application
    Filed: June 9, 2014
    Publication date: December 10, 2015
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Sandro Grech, Santosh Ramrao Patil, Cristovao Correia Da Silva, Mark Grayson, Anton Okmyanskiy
  • Patent number: 9042345
    Abstract: A method may include determining whether each of a plurality of target base stations is capable of providing a fast ranging opportunity to a mobile station served by the serving base station, and, for each of the plurality of target base stations which is capable of providing the fast ranging opportunity to the mobile station, determining an action time after which the target base station can send an uplink map to the mobile station, the uplink map indicating when the mobile station should send a fast ranging request. The method may also include sending a handover message to the mobile station, the handover message indicating whether each of the plurality of target base stations is capable of providing the fast ranging opportunity to the mobile station and indicating the action time after which the target base station can send the uplink map to the mobile station.
    Type: Grant
    Filed: April 17, 2013
    Date of Patent: May 26, 2015
    Assignee: Nokia Solutions and Networks Oy
    Inventors: Achim von Brandt, Sandro Grech, Roman Pichna, Aik Chindapol
  • Publication number: 20150017994
    Abstract: In one example embodiment, a method for classifying a basestation in a cellular communications network is provided that may include obtaining an identifier used by the basestation, comparing the identifier to a pool of identifiers reserved for a class of basestations, obtaining a frequency on which the basestation is operating, comparing the frequency to a pool of frequencies used by the class of basestations, and identifying the basestation as belonging to the class of basestations if the identifier is in the pool of identifiers and the frequency is in the pool of frequencies. Another method for classifying a basestation may comprise receiving a broadcast from the basestation including an attribute of the basestation, comparing the attribute with an attribute value range corresponding to the class of basestations, and identifying the basestation as belonging to the class of basestations if the received cell attribute falls within the attribute value range.
    Type: Application
    Filed: July 7, 2014
    Publication date: January 15, 2015
    Applicant: UBIQUISYS LIMITED
    Inventors: Gbenga Salami, Sandro Grech, Simon Burley
  • Publication number: 20140295813
    Abstract: In one example embodiment, a method for selecting a physical layer identifier for use in a basestation is disclosed. The basestation may be comprised within a mobile communications network, which may also comprise a plurality of other basestations. The method comprises receiving a pool of identifiers available for use by basestations within the network and assigning a temporary identifier for the basestation. The method further comprises receiving from connected UEs reports of identifiers from among the received pool that are in use by basestations detected by the connected UEs and assigning a final identifier selected from the received pool of identifiers, the final identifier being different from the temporary identifier.
    Type: Application
    Filed: February 28, 2014
    Publication date: October 2, 2014
    Applicant: UBIQUISYS LIMITED
    Inventors: Sandro Grech, Andrea Giustina, James Briers, Gbenga Salami
  • Publication number: 20140235259
    Abstract: A method for controlling uplink transmit power for a plurality of basestations in a mobile communications network is disclosed. The basestations may form a second layer within the network, and the network may comprise another plurality of basestations forming a first layer. The method comprises clustering the plurality of second layer basestations according to association with first layer basestations, exchanging second layer basestation loading information between second layer basestations belonging to the same cluster, and dynamically setting uplink transmit power limits for individual second layer basestations based on the exchanged loading information. The method may further comprise updating the clustering of the second layer basestations according to dynamic variation in association of second layer basestations with first layer basestations.
    Type: Application
    Filed: February 14, 2014
    Publication date: August 21, 2014
    Inventors: Gbenga Salami, Sandro Grech
  • Publication number: 20140066069
    Abstract: In a basestation of a cellular communications network, steps are taken to identify at least one situation, in which a user equipment device is liable to experience a rapid deterioration in a quality of a link with the base station. Measurement information is collected, related to the radio conditions experienced by a user equipment device in said situation, and at least one handover parameter is automatically adjusted in the basestation based on the collected information.
    Type: Application
    Filed: August 30, 2013
    Publication date: March 6, 2014
    Inventors: Gbenga Salami, Sandro Grech
  • Publication number: 20140051394
    Abstract: To provide a user equipment with a restricted access to network services in situation when authentication of the user equipment by means of a first shared secret, known only by the user equipment and an authentication centre is not possible because of a system failure, the user equipment is authenticated by means of a second shared secret in an access point node, the authentication procedure being otherwise the same.
    Type: Application
    Filed: February 23, 2012
    Publication date: February 20, 2014
    Applicants: Cassidian Finland OY, Cassidian SAS
    Inventors: Sandro Grech, Christophe Gruet
  • Publication number: 20120087338
    Abstract: According to one example embodiment, a method may include determining whether each of a plurality of target base stations is capable of providing a fast ranging opportunity to a mobile station served by the serving base station, and, for each of the plurality of target base stations which is capable of providing the fast ranging opportunity to the mobile station, determining an action time after which the target base station can send an uplink map to the mobile station, the uplink map indicating when the mobile station should send a fast ranging request.
    Type: Application
    Filed: April 3, 2009
    Publication date: April 12, 2012
    Applicant: NOKIA SIEMENS NETWORKS OY
    Inventors: Achim Von Brandt, Aik Chindapol, Sandro Grech, Roman Pichna, Yi Zhang, Shun Liang Zhang, Wei Hua Zhou
  • Publication number: 20110302643
    Abstract: There is proposed a network access authentication and authorization mechanism in which an authentication session in an authentication, authorization and accounting procedure for a user equipment for providing an initial network access is executed. A first identification element related to the user equipment is obtained. Then, a user credential validation procedure is performed wherein a second identification element related to the user equipment or related to a user of the user equipment is obtained. The obtained first and second identification elements are processed for determining whether a match between the first and second identification elements exists. In addition, the authentication session executed for the user equipment is identified on the basis of the result of the processing of the first and second identification elements. Then, a change of an authorization of the user equipment is executed for providing a modified network access.
    Type: Application
    Filed: March 31, 2009
    Publication date: December 8, 2011
    Applicant: NOKIA SIEMENS NETWORKS OY
    Inventors: Roman Pichna, Sandro Grech
  • Patent number: 8009641
    Abstract: A method for configuring a device for communication is disclosed. In the method the device accesses a communication network where after it may be detected at a network element that the device needs to be provided with at least one configuration parameter. Information regarding the at least one configuration parameter is then determined and sent to the device. The device can then be configured in accordance with information received from the network element.
    Type: Grant
    Filed: August 24, 2005
    Date of Patent: August 30, 2011
    Assignee: Nokia Corporation
    Inventors: Sandro Grech, Kalle Ahmavaara
  • Patent number: 7966018
    Abstract: The present invention concerns a method and system for optimizing transport efficiency between a Mobile Node and a Correspondent Node in a Mobile IP network. A short Mobile Node Identifier is assigned to the Mobile Node. A Mobile Node Identifier Destination Option header comprising the assigned Mobile Node Identifier is used instead of the prior art Home Address Destination Option header in subsequent packets between the Mobile Node and the Correspondent Node.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: June 21, 2011
    Assignee: Spyder Navigations L.L.C.
    Inventor: Sandro Grech
  • Patent number: 7917152
    Abstract: A method for performing a change of a connection of a mobile entity from a first network access entity to a second network access entity, wherein a global address of the first network access entity is not known to the mobile entity is provided. According to one embodiment, the method includes the step of sending a message including information for identifying the first network access entity from the mobile entity to the second network access entity which enables the second network entity to direct traffic to the first network entity. According to another embodiment, the invention also provides a method for the reverse direction. Namely, the invention provides a method for sending IP signaling from the mobile entity or from the first network access entity towards the second network access entity, whose global IP address is not known by the mobile entity or first network access entity.
    Type: Grant
    Filed: February 12, 2004
    Date of Patent: March 29, 2011
    Assignee: Nokia Corporation
    Inventors: Leopoldo Alarcon, Sandro Grech
  • Patent number: 7733824
    Abstract: The invention allows providing a fixed access point for a terminal device. One of multiple access points is assigned to serve as a fixed access point for a terminal device based on a received identifier of the terminal device. A notification about the assignment of the fixed access point is transmitted to at least one of the terminal device and a gateway node serving the terminal device. As a result, Mobile IP based handover between GPRS and WLAN will be seamless. Furthermore, the invention allows using a dedicated gateway for infected terminals to provide quarantined access to network services.
    Type: Grant
    Filed: June 23, 2005
    Date of Patent: June 8, 2010
    Assignee: Nokia Corporation
    Inventors: Vesa Hellgren, Sandro Grech, Roman Pichna
  • Patent number: 7668145
    Abstract: The invention proposes a method for controlling a connection between a first network node and a second network node, wherein the connection is controlled by a packet filtering function filtering packets such that a packet is discarded in case a source address and/or a destination address do not comply with a filtering rule, wherein the packet filtering function is configured at a connection set up, and at least one of the first or second network node is adapted to change its address, the method comprising the steps of informing, the packet filtering function about the new address of the network node having changed its address, and updating the packet filter of the packet filtering function by using the new address of the network node having changed its address. The invention also proposes a corresponding network system comprising at least a network node and a packet filtering network element. Furthermore, the invention proposes a corresponding packet filtering network device.
    Type: Grant
    Filed: June 3, 2004
    Date of Patent: February 23, 2010
    Assignee: Nokia Corporation
    Inventors: Franck Le, Stefano Faccin, Rene Purnadi, Sandro Grech
  • Publication number: 20090290554
    Abstract: Exemplary embodiments of system, method and computer accessible medium are provided for determining an action time in a communication network is described. For example, it is possible to estimate, in a target network arrangement, a value for an action time, with the value for the action time corresponding to the value for a handover time interval related to the target network node. The handover time interval can be a time interval starting substantially at the time when a first signal is received by a serving network node, which includes information about the value for the action time. For example, the handover time interval can have a duration during which the target network node is prepared to receive a handing over user equipment and the first signal. Further, the first signal can include information about the value for the action time, and such signal may be transmitted from a target network node to a serving network node.
    Type: Application
    Filed: May 13, 2008
    Publication date: November 26, 2009
    Applicant: Nokia Siemens Networks Oy
    Inventors: Sami Siltala, Roman Pichna, Sandro Grech
  • Publication number: 20090252116
    Abstract: A base station and a method for handover of a mobile station from a serving base station to a target base station of a mobile telecommunication network. Invitations may be sent from a base station to the mobile station, and the invitations may be invitations to send a request for a fast handover procedure from the mobile station to a base station.
    Type: Application
    Filed: April 4, 2008
    Publication date: October 8, 2009
    Applicant: NOKIA SIEMENS NETWORKS GMBH & CO. KG
    Inventors: Achim von Brandt, Sandro Grech, Roman Pichna, Aik Chindapol
  • Publication number: 20090067381
    Abstract: The present invention concerns a method and system for optimizing transport efficiency between a Mobile Node and a Correspondent Node in a Mobile IP network. A short Mobile Node Identifier is assigned to the Mobile Node. A Mobile Node Identifier Destination Option header comprising the assigned Mobile Node Identifier is used instead of the prior art Home Address Destination Option header in subsequent packets between the Mobile Node and the Correspondent Node.
    Type: Application
    Filed: November 12, 2008
    Publication date: March 12, 2009
    Inventor: Sandro Grech
  • Patent number: 7466680
    Abstract: The present invention concerns a method and system for optimizing transport efficiency between a Mobile Node and a Correspondent Node in a Mobile IP network. A short Mobile Node Identifier is assigned to the Mobile Node. A Mobile Node Identifier Destination Option header comprising the assigned Mobile Node Identifier is used instead of the prior art Home Address Destination Option header in subsequent packets between the Mobile Node and the Correspondent Node.
    Type: Grant
    Filed: October 11, 2002
    Date of Patent: December 16, 2008
    Assignee: Spyder Navigations L.L.C.
    Inventor: Sandro Grech
  • Patent number: 7426746
    Abstract: A mechanism for providing a mobile node with reliable information for location privacy decisions in connection with an address update process that gives the correspondent node a chance to deduce the location of the mobile node is provided. According to one embodiment of the invention, an indication is given when an address update process needs to be performed for optimizing routing between a mobile node and a correspondent node. In response to the indicating step, the correspondent node may be authenticated, the authentication yielding identity information about the correspondent node. Based on the identity information, a route optimization decision may be made based on whether or not the address update process is to be performed, and the address update process may be carried out depending on the decision.
    Type: Grant
    Filed: October 22, 2003
    Date of Patent: September 16, 2008
    Assignee: Nokia Corporation
    Inventors: Risto Mononen, Sandro Grech
  • Publication number: 20070218903
    Abstract: A node for a communication system that is configured to communicate with a mobile node via a first connection and to communicate with a third node via a first forwarding path is disclosed. After a procedure for handover of the first connection to a second connection between the mobile node and a target network node is initiated, data is communicated from the node to the third node for transmission to the target network node via a second forwarding path. The third node is configured to receive the data and to forward it to the target network node.
    Type: Application
    Filed: February 26, 2007
    Publication date: September 20, 2007
    Inventor: Sandro Grech