Patents by Inventor Mai-Anh Phan
Mai-Anh Phan 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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Publication number: 20180368141Abstract: Systems and methods relating to Discovery Signal Measurement Timing Configuration (DMTC) are disclosed. In some embodiments, a method of operating a radio access node in a cellular communications network having a primary cell and a secondary cell, comprises sending, to a wireless device, a DMTC for one of a group consisting of: (a) the secondary cell configured for the wireless device such that the DMTC is a specific DMTC for the secondary cell; and (b) the primary cell and additional cells that are configurable as secondary cells such that the DMTC applies to both the primary cell and the additional cells when configured as secondary cells. Related radio access nodes and wireless devices are also disclosed.Type: ApplicationFiled: August 27, 2018Publication date: December 20, 2018Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)Inventors: Emma Wittenmark, Peter Alriksson, David Sugirtharaj, Mai-Anh Phan
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Patent number: 10136361Abstract: A method and a radio network node for managing a request for a radio access bearer. The radio network node determines a first value relating to utilization of radio resources in a first set of subframes. The first set of subframes includes a second set of subframes, dedicated for transmission by the radio network node to multiple radio communication devices, and a third set of subframes. The radio network node determines a second value relating to utilization of radio resources in the third set of subframes. The radio network node receives the request and obtains an indication relating to a capability of a radio communication device to receive transmission in one or more of the second set of subframes. The radio network node determines a response to the request based on the first value, the second value and the indication, and sends the response to the network node.Type: GrantFiled: December 17, 2012Date of Patent: November 20, 2018Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Magnus Hurd, Robert Karlsson, Mai-Anh Phan, Xiaoling Wang
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Publication number: 20180317203Abstract: A base station of a mobile communication network supports continuity of a Multimedia Broadcast Multicast Service, MBMS, for a terminal. The base station receives, from the terminal, an information element informing the base station of a combination of bands, which the terminal supports for carrier aggregation. The terminal supports MBMS reception on any carrier configurable as a serving cell for the terminal according to the information element. The base station derives, from the received information element, MBMS reception capabilities of the terminal. The base station determines a number of carriers, which are configurable by the base station as serving cell of the terminal, such that the terminal is enabled to receive at least one MBMS.Type: ApplicationFiled: July 6, 2018Publication date: November 1, 2018Inventors: Mai-Anh Phan, Magnus Stattin, Henning Wiemann
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Patent number: 10070413Abstract: A base station of a mobile communication network supports continuity of a Multimedia Broadcast Multicast Service, MBMS, for a terminal. The base station receives, from the terminal, an information element informing the base station of a combination of bands, which the terminal supports for carrier aggregation. The terminal supports MBMS reception on any carrier configurable as a serving cell for the terminal according to the information element. The base station derives, from the received information element, MBMS reception capabilities of the terminal. The base station determines a number of carriers, which are configurable by the base station as serving cell of the terminal, such that the terminal is enabled to receive at least one MBMS.Type: GrantFiled: August 2, 2016Date of Patent: September 4, 2018Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Mai-Anh Phan, Magnus Stattin, Henning Wiemann
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Patent number: 10064174Abstract: Systems and methods relating to Discovery Signal Measurement Timing Configuration (DMTC) are disclosed. In some embodiments, a method of operation of a radio access node in a cellular communications network comprises sending, to a wireless device, a DMTC for one of a group consisting of: (a) a Secondary Cell (SCell) configured for the wireless device such that the DMTC is a specific DMTC for the SCell and (b) a frequency on which one or more asynchronous cells are operating, an asynchronous cell being a cell that is unsynchronized with a Primary Cell (PCell) of the wireless device. A DMTC configuration that is specific to a SCell provides improved measurement performance on the SCell because, e.g., the DMTC configuration can be specifically tailored to that SCell. A DMTC configuration for a frequency on which one or more asynchronous cells are operating provides improved measurement performance on that carrier.Type: GrantFiled: February 10, 2017Date of Patent: August 28, 2018Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Emma Wittenmark, Peter Alriksson, David Sugirtharaj, Mai-Anh Phan
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Patent number: 10045303Abstract: The embodiments of the present invention relate to a method and arrangement in a telecommunication system, in particular to methods and arrangements relating to overlapping MBSFN-areas. A notification mechanism is introduced that allows a user equipment to distinguish notifications for different MBSFN areas and different MBMS Control Channels. The user equipment then knows already upon reception of the notification whether it has to wake up and read a specific MBMS Control Channel. The embodiments of the present invention thus support multiple MBSFN areas per cell while still maintaining the benefits of reduced battery consumption in the UE due to said MBMS notification mechanism.Type: GrantFiled: May 16, 2017Date of Patent: August 7, 2018Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Jörg Huschke, Mai-Anh Phan, Ghyslain Pelletier
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Publication number: 20180191639Abstract: The present disclosure relates to a technique for configuring transmission of a multicast channel carrying scheduling information and data belonging to one or more multicast services, the scheduling information indicating scheduling of the multicast services mapped to the multicast channel. A method embodiment comprises the steps of configuring (404) the transmission of the scheduling information on the multicast channel based on a scheduling information specific transmission requirement and configuring (404) the transmission of the data belonging to the one or more multicast services based on a service specific transmission requirement; and signalling (406) the scheduling information specific transmission requirement and the service specific transmission requirement.Type: ApplicationFiled: February 28, 2018Publication date: July 5, 2018Applicant: IDTP HOLDINGS, INC.Inventors: Jörg Huschke, Ghyslain Pelletier, Mai-Anh Phan
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Patent number: 9942170Abstract: The present disclosure relates to a technique for configuring transmission of a multicast channel carrying scheduling information and data belonging to one or more multicast services, the scheduling information indicating scheduling of the multicast services mapped to the multicast channel. A method embodiment comprises the steps of configuring (404) the transmission of the scheduling information on the multicast channel based on a scheduling information specific transmission requirement and configuring (404) the transmission of the data belonging to the one or more multicast services based on a service specific transmission requirement; and signalling (406) the scheduling information specific transmission requirement and the service specific transmission requirement.Type: GrantFiled: April 11, 2016Date of Patent: April 10, 2018Assignee: IDTP Holdings, Inc.Inventors: Jörg Huschke, Ghyslain Pelletier, Mai-Anh Phan
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Patent number: 9877166Abstract: The invention relates to methods and base stations for supporting a broadcast service within a cell of a base station not transmitting the broadcast service. A method in a base station controlling a cell serving a user equipment supports a broadcast service from a neighboring cell. The method comprises the steps: receiving an indication that the serving base station shall not transmit the broadcast service in the cell serving the user equipment; receiving control information required by the user equipment for receiving the broadcast service from the neighboring cell; and transmitting the control information to the user equipment via the cell serving the user equipment.Type: GrantFiled: May 14, 2013Date of Patent: January 23, 2018Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventor: Mai-Anh Phan
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Publication number: 20170359817Abstract: Systems and methods relating to Discovery Signal Measurement Timing Configuration (DMTC) are disclosed. In some embodiments, a method of operation of a radio access node in a cellular communications network comprises sending, to a wireless device, a DMTC for one of a group consisting of: (a) a Secondary Cell (SCell) configured for the wireless device such that the DMTC is a specific DMTC for the SCell and (b) a frequency on which one or more asynchronous cells are operating, an asynchronous cell being a cell that is unsynchronized with a Primary Cell (PCell) of the wireless device. A DMTC configuration that is specific to a SCell provides improved measurement performance on the SCell because, e.g., the DMTC configuration can be specifically tailored to that SCell. A DMTC configuration for a frequency on which one or more asynchronous cells are operating provides improved measurement performance on that carrier.Type: ApplicationFiled: February 10, 2017Publication date: December 14, 2017Inventors: Emma Wittenmark, Peter Alriksson, David Sugirtharaj, Mai-Anh Phan
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Publication number: 20170251435Abstract: The embodiments of the present invention relate to a method and arrangement in a telecommunication system, in particular to methods and arrangements relating to overlapping MBSFN-areas. A notification mechanism is introduced that allows a user equipment to distinguish notifications for different MBSFN areas and different MBMS Control Channels. The user equipment then knows already upon reception of the notification whether it has to wake up and read a specific MBMS Control Channel. The embodiments of the present invention thus support multiple MBSFN areas per cell while still maintaining the benefits of reduced battery consumption in the UE due to said MBMS notification mechanism.Type: ApplicationFiled: May 16, 2017Publication date: August 31, 2017Inventors: Jörg Huschke, Mai-anh Phan, Ghyslain Pelletier
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Patent number: 9668237Abstract: The embodiments of the present invention relate to a method and arrangement in a telecommunication system, in particular to methods and arrangements relating to overlapping MBSFN-areas. A notification mechanism is introduced that allows a user equipment to distinguish notifications for different MBSFN areas and different MBMS Control Channels. The user equipment then knows already upon reception of the notification whether it has to wake up and read a specific MBMS Control Channel. The embodiments of the present invention thus support multiple MBSFN areas per cell while still maintaining the benefits of reduced battery consumption in the UE due to said MBMS notification mechanism.Type: GrantFiled: June 8, 2010Date of Patent: May 30, 2017Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Jörg Huschke, Mai-Anh Phan, Ghyslain Pelletier
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Patent number: 9621365Abstract: In order to provide efficient relaying of multicast data in a wireless network, the wireless network comprises a base station and a relay node. The relay node is configured for transmissions on the basis of a radio frame including one or more subframes for unicast transmission and one or more subframes for multicast transmission. In a multicast-only operating mode of the relay node, the base station transmits multicast data to the relay node in one or more subframes which are selectable from the one or more subframes for unicast transmission and the one or more subframes for multicast transmission. The relay node receives the multicast data as transmitted by the base station and transmits the received multicast data in one or more of the subframes for multicast transmission.Type: GrantFiled: July 8, 2011Date of Patent: April 11, 2017Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Mai-Anh Phan, Christian Hoymann
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Publication number: 20170041901Abstract: A communication device (10) detects a need to transmit data to an access node (100) of a cellular network. In response to detecting this need, the communication device (10) performs a selection between a scheduled transmission of the data to the access node (100) and an unscheduled transmission of the data to the access node (100). In case of the scheduled transmission, the communication device (10) requests allocation of radio resources by the cellular network, in response to this requesting, receives an indication of allocated radio resources from the cellular network, and performs a radio transmission on the allocated radio resources to send the data to the access node (100). In case of the unscheduled transmission, the communication device (10) performs a radio transmission on further radio resources to send the data to the access node (100), without requesting allocation of radio resources by the cellular network.Type: ApplicationFiled: March 23, 2015Publication date: February 9, 2017Inventors: Reem Karaki, Torsten Dudda, Mai-Anh Phan
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Patent number: 9544045Abstract: A relay node for a wireless network is configured for transmissions on the basis of a radio frame with a plurality of subframes. The relay node includes a first relay path and a second relay path. The first relay path is configured to receive, in a first subframe of the subframes, first unicast transmission signals, to decode the first unicast transmission signals to obtain unicast data, and to forward the decoded unicast data by sending second unicast transmission signals in a second subframe of the subframes. The second relay path is configured to receive, in a third subframe of the subframes, multicast transmission signals, to amplify the received multicast transmission signals, and to send the amplified multicast transmission signals in the third subframe. The relay node may switch between the first relay path and the second relay path in order to implement a hybrid Decode-and-Forward and Amplify-and-Forward relaying operation.Type: GrantFiled: September 20, 2011Date of Patent: January 10, 2017Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Christian Hoymann, Jörg Huschke, Mai-Anh Phan
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Publication number: 20160366667Abstract: A base station of a mobile communication network supports continuity of a Multimedia Broadcast Multicast Service, MBMS, for a terminal. The base station receives, from the terminal, an information element informing the base station of a combination of bands, which the terminal supports for carrier aggregation. The terminal supports MBMS reception on any carrier configurable as a serving cell for the terminal according to the information element. The base station derives, from the received information element, MBMS reception capabilities of the terminal. The base station determines a number of carriers, which are configurable by the base station as serving cell of the terminal, such that the terminal is enabled to receive at least one MBMS.Type: ApplicationFiled: August 2, 2016Publication date: December 15, 2016Inventors: Mai-Anh Phan, Magnus Stattin, Henning Wiemann
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Publication number: 20160302172Abstract: A method in a multicast coordination entity is disclosed. The method comprises configuring a multimedia broadcast multicast service single frequency network (MBSFN) area, the MBSFN area comprising one or more cells, and receiving, from one or more network nodes, cell state information for the one or more cells, the cell state information indicating whether the one or more cells are active or inactive. The method further comprises determining, based on the cell state information, a modulation and coding scheme for an MBSFN transmission, and communicating the MBSFN area configuration and the determined modulation and coding scheme for the MBSFN transmission to the one or more network nodes.Type: ApplicationFiled: April 5, 2016Publication date: October 13, 2016Inventors: Mai-Anh Phan, Angelo Centonza, Shabnam Sultana, Gino Luca Masini
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Patent number: 9439171Abstract: A base station of a mobile communication network supports continuity of a Multimedia Broadcast Multicast Service, MBMS, for a terminal. The base station receives, from the terminal, an information element informing the base station of a combination of bands, which the terminal supports for carrier aggregation. The terminal supports MBMS reception on any carrier configurable as a serving cell for the terminal according to the information element. The base station derives, from the received information element, MBMS reception capabilities of the terminal. The base station determines a number of carriers, which are configurable by the base station as serving cell of the terminal, such that the terminal is enabled to receive at least one MBMS.Type: GrantFiled: August 16, 2012Date of Patent: September 6, 2016Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Mai-Anh Phan, Magnus Stattin, Henning Wiemann
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Publication number: 20160226796Abstract: The present disclosure relates to a technique for configuring transmission of a multicast channel carrying scheduling information and data belonging to one or more multicast services, the scheduling information indicating scheduling of the multicast services mapped to the multicast channel. A method embodiment comprises the steps of configuring (404) the transmission of the scheduling information on the multicast channel based on a scheduling information specific transmission requirement and configuring (404) the transmission of the data belonging to the one or more multicast services based on a service specific transmission requirement; and signalling (406) the scheduling information specific transmission requirement and the service specific transmission requirement.Type: ApplicationFiled: April 11, 2016Publication date: August 4, 2016Applicant: IDTP HOLDINGS, INC.Inventors: Jörg Huschke, Ghyslain Pelletier, Mai-Anh Phan
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Patent number: 9313770Abstract: The present disclosure relates to a technique for configuring transmission of a multicast channel carrying scheduling information and data belonging to one or more multicast services, the scheduling information indicating scheduling of the multicast services mapped to the multicast channel. A method embodiment comprises the steps of configuring (404) the transmission of the scheduling information on the multicast channel based on a scheduling information specific transmission requirement and configuring (404) the transmission of the data belonging to the one or more multicast services based on a service specific transmission requirement; and signalling (406) the scheduling information specific transmission requirement and the service specific transmission requirement.Type: GrantFiled: June 1, 2010Date of Patent: April 12, 2016Assignee: IDTP Holdings, Inc.Inventors: Jörg Huschke, Ghyslain Pelletier, Mai-Anh Phan