Patents by Inventor José Diaz Cervera

José Diaz Cervera 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).

  • Patent number: 8099047
    Abstract: The present invention relates to a method for controlling sleep mode in a terminal comprising at least two network interfaces. According to the present invention, the method comprises the steps of: Switching off one of the two interfaces; Activating the switched off interface for a predefined time window upon reception of a predefined signaling message on the other interface.
    Type: Grant
    Filed: March 16, 2005
    Date of Patent: January 17, 2012
    Assignee: Alcatel Lucent
    Inventors: Klaus David, Matthias Hildebrand, Gabriel Cristache, Rolf Sigle, José Diaz Cervera
  • Patent number: 7742739
    Abstract: To reduce the overhead induced by transmitting data between a mobile client and a cellular network via an ad-hoc network extension, the cellular network transmits data dedicated to the mobile relay and dedicated to the mobile client within the same data stream, the mobile relay detects whether data received by the mobile relay contains data that are dedicated to the mobile relay itself and terminates the part of the received data that is dedicated to the mobile relay itself, the mobile relay detects whether data received by the mobile relay contains data that are dedicated to the mobile client and forwards the part that is dedicated to the mobile client to the mobile client, and the mobile relay detects whether data received by the mobile relay contains data that are dedicated to the cellular network and forwards the part that is dedicated to the cellular network to the cellular network.
    Type: Grant
    Filed: June 8, 2005
    Date of Patent: June 22, 2010
    Assignee: Alcatel
    Inventors: José Diaz Cervera, Rolf Sigle
  • Patent number: 7548530
    Abstract: Provided are a radio access network, a distributed radio network controlling structure and a network element, each providing mobile communications services, and each having controlling elements including at least one control plane server for providing control plane functions and at least one user plane server for providing user plane functions, and a network having a mapping function for interfacing the radio control elements with a core network. Using this solution, only the network element containing a mapping function interfaces with the core network.
    Type: Grant
    Filed: April 30, 2003
    Date of Patent: June 16, 2009
    Assignee: ALCATEL
    Inventors: José Diaz Cervera, Rolf Sigle, Kristiaan Venken, Ignacio Gomez Vinagre
  • Patent number: 7336927
    Abstract: Data transmission between a mobile client (1) and a cellular network (4) can be performed via an ad-hoc network (2) extension of the cellular network and a mobile relay (3). To reduce the overhead induced by the ad-hoc network (2) extension and still reap the benefits of extending the cellular network (4) by the ad-hoc network (2) it is suggested that a first part of the data that are transmitted from the mobile client (1) towards the cellular network (4) are transmitted directly via the air interface (8) and a second part of the data that are transmitted from the mobile client (1) towards the cellular network (4) are transmitted via the ad-hoc network (2) and the mobile relay (3).
    Type: Grant
    Filed: June 8, 2005
    Date of Patent: February 26, 2008
    Assignee: Alcatel
    Inventors: José Diaz Cervera, Rolf Sigle
  • Patent number: 7136650
    Abstract: The invention relates to a method for routing a message from a Cell Control to a Mobile Control of a Radio Network Control equipment and vice versa. Such methods are substantially known in the art for Radio Network Controllers RNCs. The present invention proposes a communication between functional entities of a distributed RNC enabling the routing of the message by using known protocols and reusing identifiers already known for these protocols.
    Type: Grant
    Filed: February 25, 2004
    Date of Patent: November 14, 2006
    Assignee: Alcatel
    Inventors: José Diaz Cervera, Rolf Sigle, Kristiaan Johan Venken, Ignacio Gomez Vinagre
  • Publication number: 20060003696
    Abstract: To reduce the overhead induced by transmitting data between a mobile client (1) and a cellular network (4) via an ad-hoc network (2) extension it is suggested, that the cellular network (4) transmits data dedicated to the mobile relay (3) and dedicated to the mobile client (1) within the same data stream; the mobile relay (3) detects whether data received by the mobile relay (3) contains data that are dedicated to the mobile relay (3) itself and terminates the part of the received data that is dedicated to the mobile relay (3) itself; the mobile relay (3) detects whether data received by the mobile relay (3) contains data that are dedicated to the mobile client (1) and forwards the part that is dedicated to the mobile client (1) to the mobile client (1); and the mobile relay (3) detects whether data received by the mobile relay (3) contains data that are dedicated to the cellular network (4) and forwards the part that is dedicated to the cellular network (4) to the cellular network (4).
    Type: Application
    Filed: June 8, 2005
    Publication date: January 5, 2006
    Inventors: Jose Diaz Cervera, Rolf Sigle
  • Publication number: 20060002332
    Abstract: Data transmission between a mobile client (1) and a cellular network (4) can be performed via an ad-hoc network (2) extension of the cellular network and a mobile relay (3). To reduce the overhead induced by the ad-hoc network (2) extension and still reap the benefits of extending the cellular network (4) by the ad-hoc network (2) it is suggested that a first part of the data that are transmitted from the mobile client (1) towards the cellular network (4) are transmitted directly via the air interface (8) and a second part of the data that are transmitted from the mobile client (1) towards the cellular network (4) are transmitted via the ad-hoc network (2) and the mobile relay (3).
    Type: Application
    Filed: June 8, 2005
    Publication date: January 5, 2006
    Inventors: José Diaz Cervera, Rolf Sigle
  • Publication number: 20040180667
    Abstract: The invention relates to a method for routing a message from a Cell Control to a Mobile Control of a Radio Network Control equipment and vice versa. Such methods are substantially known in the art for Radio Network Controllers RNCs. The present invention proposes a communication between functional entities of a distributed RNC enabling the routing of the message by using known protocols and reusing identifiers already known for these protocols.
    Type: Application
    Filed: February 25, 2004
    Publication date: September 16, 2004
    Applicant: ALCATEL
    Inventors: Jose Diaz Cervera, Rolf Sigle, Kristiaan Johan Venken, Ignacio Gomez Vinagre
  • Publication number: 20040162072
    Abstract: The present invention relates to a method of performing a handover or reselection procedure for a wireless telecommunication device from a wireless cellular telecommunication source system to a wireless cellular telecommunication target system. The method comprises the steps of determining of a number of potential handover or reselection target cells of the target system by the source system, providing of first data being indicative of the target cells from the source system to the target system, selecting of one of the target cells by the target system, providing of second data being indicative of the selected one of the target cells from the target system to the source system, performing a handover or reselection for the wireless telecommunication device from the source system to the selected target cell of the target system.
    Type: Application
    Filed: February 4, 2004
    Publication date: August 19, 2004
    Applicant: ALCATEL
    Inventors: Rolf Sigle, Frank Fechter, Jose Diaz Cervera, Anja Warich
  • Publication number: 20030228872
    Abstract: In an evolved radio access network (RAN) architecture user planes (UP) and the control planes (CP) are separated into different network elements. This concept is improved by further splitting the control plane (CP) in mobile specific control functions and area specific (cell and multi-cell) control functions, the proposed method comprising the steps of processing paging and broadcast functional tasks on the control plane of at least one of the radio network controlling elements resulting from this split, processing mobile control functional tasks on the control plane of at least one other radio network controlling element resulting from the split, processing the paging and broadcast functional tasks in a first and a second logical block, the first logical block performing paging tasks which are related to core network defined areas and the second logical block performing paging tasks for radio access network defined areas.
    Type: Application
    Filed: June 9, 2003
    Publication date: December 11, 2003
    Applicant: ALCATEL
    Inventors: Jose Diaz Cervera, Rolf Sigle, Kristiaan Johan Hubert Venken, Ignacio Gomez
  • Publication number: 20030214925
    Abstract: In evolved radio access network architectures the user and the control planes are separated into different network elements. This implies that the core network must exchange control and user information related to a particular user terminal with these two different network elements. Moreover, information not linked to a particular user but to a certain cell or area must also be directed to the appropriate control plane server or user plane server.
    Type: Application
    Filed: April 30, 2003
    Publication date: November 20, 2003
    Applicant: ALCATEL
    Inventors: Jose Diaz Cervera, Rolf Sigle, Kristiaan Venken, Ignacio Gomez Vinagre