Patents by Inventor Said Tatesh
Said Tatesh 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).
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Patent number: 10306533Abstract: A method of facilitating dormant small cell discovery in a wireless communications network including at least a small cell and a second cell includes changing, at the small cell, an operating state of the small cell from an active state to a dormant state, the dormant state being a state in which the small cell transmits discovery signals and does not transmit DL broadcast or DL control channels, the discovery signals being signals through which user equipments (UE)s discover the dormant small cell; sending, from the dormant small cell, a notification, the notification identifying, for at least the second cell, a duty cycle with which the first small cell will periodically transmit the discovery signals; and transmitting, from the dormant small, the discovery signals using a periodic transmission pattern that includes active portions and non-active portions defined by the duty cycle.Type: GrantFiled: March 21, 2014Date of Patent: May 28, 2019Assignee: ALCATEL LUCENTInventors: Fang-chen Cheng, Said Tatesh
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Patent number: 9876767Abstract: User equipment decrypt information received in a first frame over an air interface during device-to-device (D2D) communication with another user equipment. The information is decrypted using a cryptographic function that is applied to a security key and a first frame number of the first frame.Type: GrantFiled: May 9, 2014Date of Patent: January 23, 2018Assignee: Alcatel LucentInventors: Fang-Chen Cheng, Said Tatesh
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Patent number: 9503901Abstract: An example of the present invention is a method of transmitting encrypted user data to a mobile terminal in a wireless telecommunications network. The method comprises sending to the mobile terminal a data packet. The data packet comprises both an identifier of encryption information to be used in recovering encrypted user data, and user data encrypted using the encryption information.Type: GrantFiled: May 7, 2015Date of Patent: November 22, 2016Assignee: Alcatel LucentInventors: Alessio Casati, Sudeep Kumar Palat, Said Tatesh
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Patent number: 9461790Abstract: At least one example embodiment discloses a method of coordinating a change from a first operating state to a second operating state of a selected cell in a system. The method includes changing to an intermediate state from the first operating state based on first signaling information exchanged between a serving cell of a user equipment (UE) and the selected cell in the first operating state and at least one signal received by the selected cell in the first operating state from the UE, the first operating state being a dormant state and operating in the intermediate state based on second signaling information between the serving cell and the selected cell, third signaling information between the serving cell and the UE and transmission information between the UE and the selected cell, the intermediate state being between the first operating state and the second operating state, the second operating state being an on state where the selected cell serves the UE.Type: GrantFiled: January 31, 2014Date of Patent: October 4, 2016Assignee: Alcatel LucentInventors: Fang-Chen Cheng, Said Tatesh
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Patent number: 9456330Abstract: First user equipment transmits a first synchronization signal and a second synchronization signal that are assigned to the first user equipment for device-to-device (D2D) communication. The first synchronization signal indicates a timing reference for D2D communication and a combination of the first synchronization signal and the second synchronization signal indicate resources allocated to the first user equipment to transmit discovery information for D2D communication. First user equipment detects a first synchronization signal and a second synchronization signal that are assigned to second user equipment for D2D communication.Type: GrantFiled: July 31, 2014Date of Patent: September 27, 2016Assignee: Alcatel LucentInventors: Fang-Chen Cheng, Said Tatesh
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Patent number: 9451570Abstract: Embodiments of the claimed subject matter provide a method and apparatus for device discovery in device-to-device (D2D) communication. One embodiment of the method includes generating first information indicative of a first synchronization signal in response to a request from a first user equipment to be authenticated for D2D communication with one or more second user equipment. The first information corresponds to a sequence used to generate a primary synchronization signal for transmission by a serving cell for the first user equipment. This embodiment of the method also includes providing the first information to the first user equipment so that the first user equipment can transmit the first synchronization signal.Type: GrantFiled: August 29, 2012Date of Patent: September 20, 2016Assignee: Alcatel LucentInventors: Fang-Chen Cheng, Said Tatesh
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Patent number: 9445380Abstract: An exemplary method of communicating includes a relay node that uses a cell identifier that is also used by a base station having a coverage area within which the relay node is located. The method includes determining that a mobile station is within a communication range of the relay node. A transmission power from the relay node is controlled so that the total transmission power of at least one transmission from the relay node and the base station corresponds to a selected transmit power limit. A timing of a downlink transmission from the base station and the relay node is coordinated based on a schedule determined by the base station. At least one uplink control parameter is set at the base station based upon uplink information regarding a link between the mobile station and the relay node.Type: GrantFiled: April 23, 2010Date of Patent: September 13, 2016Assignee: Alcatel LucentInventors: Fang-Chen Cheng, Said Tatesh
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Patent number: 9438436Abstract: A multicast status availability indication from an anchor (24) is provided to a plurality of base nodes (22) that are part of a multicast group serviced by the anchor (24). The availability status indication in one example is sent autonomously by the anchor (24) independent of any inquiry or attempted setup of a new session with that anchor by a base mode (22). The base modes (22) maintain a candidate anchor set that includes information regarding currently available anchors for establishing new sessions, for example.Type: GrantFiled: August 14, 2006Date of Patent: September 6, 2016Assignee: Alcatel LucentInventors: Alessio Casati, Sudeep Palat, Said Tatesh
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Patent number: 9386554Abstract: The present invention provides a method of operating an idle mobile unit that is capable of communicating with first and second wireless communication systems. One embodiment of the method includes providing a location update message in response to the idle mobile unit transitioning from a first tracking area associated with the second wireless communication system to a second tracking area associated with the second wireless communication system. The first and second wireless communication systems are capable of paging the idle mobile unit following the location update message.Type: GrantFiled: August 7, 2008Date of Patent: July 5, 2016Assignee: GEMALTO SAInventors: Alessio Casati, Sudeep Palat, Said Tatesh
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Publication number: 20150326537Abstract: User equipment decrypt information received in a first frame over an air interface during device-to-device (D2D) communication with another user equipment. The information is decrypted using a cryptographic function that is applied to a security key and a first frame number of the first frame.Type: ApplicationFiled: May 9, 2014Publication date: November 12, 2015Applicant: Alcatel LucentInventors: Fang-Chen Cheng, Said Tatesh
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Publication number: 20150271738Abstract: A method of facilitating dormant small cell discovery in a wireless communications network including at least a small cell and a second cell includes changing, at the small cell, an operating state of the small cell from an active state to a dormant state, the dormant state being a state in which the small cell transmits discovery signals and does not transmit DL broadcast or DL control channels, the discovery signals being signals through which user equipments (UE)s discover the dormant small cell; sending, from the dormant small cell, a notification, the notification identifying, for at least the second cell, a duty cycle with which the first small cell will periodically transmit the discovery signals; and transmitting, from the dormant small, the discovery signals using a periodic transmission pattern that includes active portions and non-active portions defined by the duty cycle.Type: ApplicationFiled: March 21, 2014Publication date: September 24, 2015Applicants: ALCATEL-LUCENT USA INC., ALCATEL-LUCENTInventors: Fang-Chen CHENG, Said TATESH
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Publication number: 20150237501Abstract: An example of the present invention is a method of transmitting encrypted user data to a mobile terminal in a wireless telecommunications network. The method comprises sending to the mobile terminal a data packet. The data packet comprises both an identifier of encryption information to be used in recovering encrypted user data, and user data encrypted using the encryption information.Type: ApplicationFiled: May 7, 2015Publication date: August 20, 2015Applicant: ALCATEL LUCENTInventors: Alessio CASATI, Sudeep Kumar PALAT, Said TATESH
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Patent number: 9107066Abstract: An example of the present invention is a method of transmitting encrypted user data to a mobile terminal in a wireless telecommunications network. The method comprises sending to the mobile terminal a data packet. The data packet comprises both an identifier of encryption information to used in recovering encrypted user data, and user data encrypted using said encryption information.Type: GrantFiled: March 14, 2013Date of Patent: August 11, 2015Assignee: Alcatel LucentInventors: Alessio Casati, Sudeep Kumar Palat, Said Tatesh
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Publication number: 20150222399Abstract: At least one example embodiment discloses a method of coordinating a change from a first operating state to a second operating state of a selected cell in a system. The method includes changing to an intermediate state from the first operating state based on first signaling information exchanged between a serving cell of a user equipment (UE) and the selected cell in the first operating state and at least one signal received by the selected cell in the first operating state from the UE, the first operating state being a dormant state and operating in the intermediate state based on second signaling information between the serving cell and the selected cell, third signaling information between the serving cell and the UE and transmission information between the UE and the selected cell, the intermediate state being between the first operating state and the second operating state, the second operating state being an on state where the selected cell serves the UE.Type: ApplicationFiled: January 31, 2014Publication date: August 6, 2015Applicant: ALCATEL LUCENTInventors: Fang-Chen CHENG, Said TATESH
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Patent number: 9055434Abstract: An example of the present invention is a method of transmitting encrypted user data to a mobile terminal in a wireless telecommunications network. The method comprises sending to the mobile terminal a data packet. The data packet comprises both an identifier of encryption information to used in recovering encrypted user data, and user data encrypted using said encryption information.Type: GrantFiled: March 14, 2013Date of Patent: June 9, 2015Assignee: Alcatel LucentInventors: Alessio Casati, Sudeep Kumar Palat, Said Tatesh
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Patent number: 8976757Abstract: A method is provided of transferring a call connection with a mobile terminal from a first network to a second network. The first network is capable of handling both circuit-switched and packet-switched modes of connection. The second network is capable of handling one of the packet-switched or circuit-switched modes of connection but not both. The terminal is capable of both packet-switched and circuit-switched call modes of connection. The method comprises the first network: identifying the location of the mobile terminal with respect to at least one of the networks, identifying the mobile terminal as being in a mode of connection not usable in the second network, instructing the mobile terminal to transfer the call connection to the other mode of connection, and transferring the call connection to the second network.Type: GrantFiled: March 20, 2007Date of Patent: March 10, 2015Assignee: Alcatel LucentInventors: Andrew Jonathan Bennett, Alessio Casati, Sudeep Kumar Palat, Said Tatesh
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Patent number: 8964649Abstract: The present invention provides a method involving a configurable random access channel structure. One embodiment of the method includes generating a random access channel burst that includes a cyclic prefix and a selected number of repetitions of a preamble. The number of repetitions is selected based on at least one of a cell radius and a radio transmission frequency. This embodiment of the method also includes transmitting the random access channel burst over an air interface.Type: GrantFiled: February 19, 2014Date of Patent: February 24, 2015Assignee: Alcatel LucentInventors: Iqbal Jami, Jung Ah Lee, Said Tatesh
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Publication number: 20150043545Abstract: First user equipment transmits a first synchronization signal and a second synchronization signal that are assigned to the first user equipment for device-to-device (D2D) communication. The first synchronization signal indicates a timing reference for D2D communication and a combination of the first synchronization signal and the second synchronization signal indicate resources allocated to the first user equipment to transmit discovery information for D2D communication. First user equipment detects a first synchronization signal and a second synchronization signal that are assigned to second user equipment for D2D communication.Type: ApplicationFiled: July 31, 2014Publication date: February 12, 2015Inventors: Fang-Chen Cheng, Said Tatesh
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Patent number: 8953562Abstract: The present invention provides a method and apparatus for using uplink reference signals for access grant requests. The method includes determining that at least one mobile unit is requesting access to at least one uplink channel based on information indicative of a change in a masking sequence applied to at least one reference signal. Another embodiment of the present invention includes providing a first reference signal modulated by a first masking sequence to indicate a request for access to at least one uplink channel.Type: GrantFiled: February 1, 2007Date of Patent: February 10, 2015Assignee: Alcatel LucentInventors: Rainer Bachl, Fang-Chen Cheng, Jung A. Lee, Lei Song, Said Tatesh
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Publication number: 20140169303Abstract: The present invention provides a method involving a configurable random access channel structure. One embodiment of the method includes generating a random access channel burst that includes a cyclic prefix and a selected number of repetitions of a preamble. The number of repetitions is selected based on at least one of a cell radius and a radio transmission frequency. This embodiment of the method also includes transmitting the random access channel burst over an air interface.Type: ApplicationFiled: February 19, 2014Publication date: June 19, 2014Applicant: Alcatel-Lucent USA Inc.Inventors: Iqbal Jami, Jung Ah Lee, Said Tatesh