Patents by Inventor Muhammad Ali Kazmi

Muhammad Ali Kazmi 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: 20210266134
    Abstract: A wireless device (14) is configured to receive an activation command (16) that commands the wireless device (14) to activate a serving cell (18B). The wireless device (14) is configured to activate the serving cell (18B) within a maximum delay (20) since receiving the activation command (16). The maximum delay (20) depends on whether there is at least one other serving cell (18A) already activated for the wireless device (14) in the same frequency band (24) as that in which the serving cell (18B) is to be activated.
    Type: Application
    Filed: June 25, 2019
    Publication date: August 26, 2021
    Inventors: Joakim Axmon, Muhammad Ali Kazmi, Christopher Callender
  • Publication number: 20210258959
    Abstract: There is provided a method and apparatus for transmitting and receiving signals in a frequency band in a wireless communications network. The method comprises determining a frequency separation between a frequency of a transmit signal and a frequency of a receive signal within the frequency band based on at least one of a power of the transmit signal, a number of physical channels associated with the transmit signal, and a number of physical channels associated with the receive signal. The method further comprises transmitting and receiving signals in the frequency band in accordance with the determined frequency separation. The method may be performed by a User Equipment of a Network Node.
    Type: Application
    Filed: May 3, 2021
    Publication date: August 19, 2021
    Inventors: Muhammad Ali Kazmi, Johan Bergman, Gary Boudreau
  • Publication number: 20210227409
    Abstract: A method by a wireless device is provided for controlling adaptive beam measurement capability. The method includes identifying a type of serving carrier of a serving cell and allocating at least one resource for beam measurement based on the type that was identified.
    Type: Application
    Filed: May 14, 2019
    Publication date: July 22, 2021
    Inventors: Iana Siomina, Muhammad Ali Kazmi, Christopher Callender
  • Patent number: 11018820
    Abstract: In one aspect, the present invention provides a simple method of signaling reference signal muting information to receiving radio equipment, such as items of user equipment (UEs). The reference signals may be positioning reference signals and/or cell-specific reference signals, for example. In one or more embodiments, the present invention proposes a general solution whereby the receiving radio equipment is informed not only on whether muting is used in general in a cell, but also the particular timing and formatting of such muting. Further, the contemplated method provides for the use of dynamic muting patterns, and thus avoids the need for statically defined muting patterns, and provides for coordinated muting control, across two or more network cells. In at least one embodiment, static or less dynamic aspects of the muting configuration is signaled via higher-layer signaling, while lower-layer signaling is used to signal more dynamic aspects of the muting configuration.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: May 25, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Iana Siomina, Muhammad Ali Kazmi
  • Patent number: 10986582
    Abstract: According to some embodiments, a method for use in a user equipment (UE) operable to transmit a sounding reference signal (SRS) on a plurality of carriers comprises: obtaining an indication to perform SRS carrier-based switching for a carrier; adapting a parameter for uplink 5 transmit power control in response to the obtained indication; and transmitting an uplink signal using the adapted parameter while meeting at least one predetermined uplink power control requirement. According to some embodiments, a method for use in a network node operable to receive a SRS on a plurality of carriers comprises: sending, to a UE, an indication to perform SRS carrier-based switching for a carrier; and receiving, from the UE, an uplink signal based 0 on the parameter for uplink transmit power control adapted in response to the sent indication, wherein the uplink signal meets at least one uplink power control requirement.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: April 20, 2021
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Imadur Rahman, Iana Siomina, Muhammad Ali Kazmi, Christian Bergljung
  • Publication number: 20210112431
    Abstract: A method, system and apparatus are disclosed. A network node configured to communicate with a wireless device (WD) is provided. The network node is configured to, and/or includes a radio interface and/or includes processing circuitry configured to: determine a radio link monitoring (RLM) state of a wireless device that is served by a first cell and configured to operate with at least a first operational mode and a second operation mode within an overlapping time, and schedule at least one signal associated with the wireless device based on the RLM state.
    Type: Application
    Filed: May 10, 2019
    Publication date: April 15, 2021
    Inventors: Muhammad Ali KAZMI, Florent MUNIER, Santhan THANGARASA, Zhenhua ZOU, Kazuyoshi UESAKA
  • Patent number: 10779169
    Abstract: According to one aspect of the present disclosure, a method is disclosed in a user equipment (UE) for performing downlink measurements on a plurality of cells according to a received measurement configuration. The UE receives measurement configuration information from a radio base station supporting a serving cell of a wireless communications network, the measurement configuration information including an indication of a variably sized measurement bandwidth over which measurements are to be performed on the serving cell and one or more neighbor cells. The UE performs measurements on each of the serving cell and the one or more neighbor cells over the measurement bandwidth, and reports the measurements to the network.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: September 15, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Muhammad Ali Kazmi, Anders Furuskär
  • Patent number: 10721638
    Abstract: The present invention relates to a method and apparatus for testing mobile terminals in an OFDMA system, in which all or part of available downlink radio resources in a cell are transmitted. A processing unit in a test apparatus splits a set of contiguous resource blocks into separate contiguous portions. A first contiguous portion of the set of resource blocks is allocated to users of a first type, and a second contiguous portion of the set of resource blocks is allocated to users of a second type. A transmitter in the test apparatus transmits test signals to the users of the first type and the second type using the at least one contiguous set of resource blocks.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: July 21, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Muhammad Ali Kazmi, Joakim Axmon, Christian Bergljung, Farshid Ghasemzadeh, Walter Gerhard Alois Müller
  • Patent number: 10721704
    Abstract: Methods and devices for adjusting timing of uplink transmissions to a network node in a telecommunications system are provided. A user equipment (“UE”) is configurable with more than one aggregated serving cells that are divided into one or more groups of serving cells based on a timing advance value. The one or more groups of serving cells each comprises a timing reference serving cell. The reception timing of a downlink transmission from a timing reference serving cell is used as an uplink timing reference for the timing reference serving cell. The UE determines a change to a second timing reference serving cell and applies an incremental adjustment of the transmit timing of uplink transmissions for the serving cells in the group of serving cells with respect to a timing reference based on the reception timing of a downlink transmission from the second timing reference serving cell in the UE.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: July 21, 2020
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Mattias Bergström, Muhammad Ali Kazmi
  • Publication number: 20190159047
    Abstract: The present invention relates to a method and apparatus for testing mobile terminals in an OFDMA system, in which all or part of available downlink radio resources in a cell are transmitted. A processing unit in a test apparatus splits a set of contiguous resource blocks into separate contiguous portions. A first contiguous portion of the set of resource blocks is allocated to users of a first type, and a second contiguous portion of the set of resource blocks is allocated to users of a second type. A transmitter in the test apparatus transmits test signals to the users of the first type and the second type using the at least one contiguous set of resource blocks.
    Type: Application
    Filed: January 18, 2019
    Publication date: May 23, 2019
    Inventors: Muhammad Ali Kazmi, Joakim Axmon, Christian Bergljung, Farshid Ghasemzadeh, Walter Gerhard Alois Müller
  • Publication number: 20190141639
    Abstract: According to some embodiments, a method for use in a user equipment (UE) operable to transmit a sounding reference signal (SRS) on a plurality of carriers comprises: obtaining an indication to perform SRS carrier-based switching for a carrier; adapting a parameter for uplink 5 transmit power control in response to the obtained indication; and transmitting an uplink signal using the adapted parameter while meeting at least one predetermined uplink power control requirement. According to some embodiments, a method for use in a network node operable to receive a SRS on a plurality of carriers comprises: sending, to a UE, an indication to perform SRS carrier-based switching for a carrier; and receiving, from the UE, an uplink signal based 0 on the parameter for uplink transmit power control adapted in response to the sent indication, wherein the uplink signal meets at least one uplink power control requirement.
    Type: Application
    Filed: May 12, 2017
    Publication date: May 9, 2019
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Imadur Rahman, Iana Siomina, Muhammad Ali Kazmi, Christian Bergljung
  • Publication number: 20190098595
    Abstract: Methods and devices for adjusting timing of uplink transmissions to a network node in a telecommunications system are provided. A user equipment (“UE”) is configurable with more than one aggregated serving cells that are divided into one or more groups of serving cells based on a timing advance value. The one or more groups of serving cells each comprises a timing reference serving cell. The reception timing of a downlink transmission from a timing reference serving cell is used as an uplink timing reference for the timing reference serving cell. The UE determines a change to a second timing reference serving cell and applies an incremental adjustment of the transmit timing of uplink transmissions for the serving cells in the group of serving cells with respect to a timing reference based on the reception timing of a downlink transmission from the second timing reference serving cell in the UE.
    Type: Application
    Filed: November 30, 2018
    Publication date: March 28, 2019
    Inventors: Mattias Bergström, Muhammad Ali Kazmi
  • Patent number: 10178640
    Abstract: Methods and devices for adjusting timing of uplink transmissions to a network node in a telecommunications system are provided. A user equipment (“UE”) is configurable with more than one aggregated serving cells that are divided into one or more groups of serving cells based on a timing advance value. The one or more groups of serving cells each comprises a timing reference serving cell. The reception timing of a downlink transmission from a timing reference serving cell is used as an uplink timing reference for the timing reference serving cell. The UE determines a change to a second timing reference serving cell and applies an incremental adjustment of the transmit timing of uplink transmissions for the serving cells in the group of serving cells with respect to a timing reference based on the reception timing of a downlink transmission from the second timing reference serving cell in the UE.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: January 8, 2019
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Mattias Bergström, Muhammad Ali Kazmi
  • Patent number: 10034205
    Abstract: In a multi-carrier wireless communication network, positioning-aware switching of a primary carrier from a first carrier to a second carrier for a UE is constrained to enable one or more positioning measurements to be performed. Either the selection of the second carrier, the timing of switching from the first to the second carrier, or both, are constrained to enable and enhance the positioning performance. The constraints may be operative at a serving node of the network, at a UE, or both. Further constraints may be applied to the network to enhance positioning performance. Carrier switching may be across Radio Access Technology (RAT), and the positioning constraints may include configuring or re-configuring a device to perform positioning measurements in measurement gaps (e.g., on a secondary carrier in LTE systems when Positioning Reference Signals are not transmitted on the primary carrier).
    Type: Grant
    Filed: October 5, 2010
    Date of Patent: July 24, 2018
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Muhammad Ali Kazmi, Iana Siomina
  • Patent number: 9860691
    Abstract: The present disclosure relates to a positioning node, a core network node, a radio network (RN) node, and a user equipment (UE) of a wireless network, and to a related method of supporting UE positioning. The method comprises transmitting UE radio access capability information and/or radio network node capability information to the positioning node. The transmission of UE radio access capability information is either unsolicited or triggered by a request. The UE radio access capability information may be transmitted from the CN node, from the RN node or from the UE, and the RN node capability information is received from the RN node itself. The positioning node supports positioning of the UE based on the received UE radio access capability information and/or the radio network node capability information.
    Type: Grant
    Filed: April 12, 2016
    Date of Patent: January 2, 2018
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Iana Siomina, Muhammad Ali Kazmi
  • Patent number: 9717038
    Abstract: Embodiments herein relate to a method in a user equipment (10) for acquiring system information relating to a cell (11,14) in a radio communications network. The cell (11,14) is served by a network node (12,12?,15) and the user equipment (10) is capable of receiving signals on more than one downlink carrier simultaneously. The user equipment (10) creates autonomous gaps on a downlink carrier, which downlink carrier to use for creating autonomous gaps on is based on a received indication from the network node (12,12?,15) and/or a pre-determined rule. The indication or pre-determined rule specifies the downlink carrier. The user equipment (10) then acquires the system information of the cell (11,14) on the downlink carrier using the created autonomous gaps.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: July 25, 2017
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventor: Muhammad Ali Kazmi
  • Publication number: 20170006569
    Abstract: Methods and devices for adjusting timing of uplink transmissions to a network node in a telecommunications system are provided. A user equipment (“UE”) is configurable with more than one aggregated serving cells that are divided into one or more groups of serving cells based on a timing advance value. The one or more groups of serving cells each comprises a timing reference serving cell. The reception timing of a downlink transmission from a timing reference serving cell is used as an uplink timing reference for the timing reference serving cell. The UE determines a change to a second timing reference serving cell and applies an incremental adjustment of the transmit timing of uplink transmissions for the serving cells in the group of serving cells with respect to a timing reference based on the reception timing of a downlink transmission from the second timing reference serving cell in the UE.
    Type: Application
    Filed: September 19, 2016
    Publication date: January 5, 2017
    Inventors: Mattias Bergström, Muhammad Ali Kazmi
  • Patent number: 9503994
    Abstract: A method in a user equipment for adjusting a transmit timing of uplink transmissions to a network node in a telecommunications system is provided. The user equipment is configurable with more than one aggregated serving cells. The reception timing of a downlink transmission from a timing reference serving cell is used as a timing reference for the transmit timing of uplink transmissions. The user equipment determines a change to a second serving cell as the new timing reference serving cell which is different from a first serving cell currently being used as the timing reference serving cell. The user equipment applies an incremental adjustment of the transmit timing of uplink transmissions for the serving cells in a group of serving cells with respect to a timing reference based on the reception timing of a downlink transmission from the second serving cell in the user equipment.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: November 22, 2016
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Mattias Bergström, Muhammad Ali Kazmi
  • Patent number: 9490923
    Abstract: A user equipment (UE) in a cellular telecommunications system is able to detect the uplink/downlink configuration of a detected neighboring cell by receiving a signal from the neighboring cell. A characteristic of the received signal is detected and used as an indicator in a blind detection process to identify one or more downlink slots in the received signal. Known pilot signals in the identified one or more downlink slots can then be used to obtain a signal power measurement of the received signal. The blind detection process is also capable of detecting whether a slot of a neighboring cell's signal is a downlink unicast slot or a Multicast-Broadcast Single Frequency Network slot.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: November 8, 2016
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (publ)
    Inventors: Bengt Lindoff, Muhammad Ali Kazmi, Johan Nilsson, David Astely
  • Patent number: 9445339
    Abstract: The invention relates to a method for supporting cell change between frequency layers. The method is performed in a Radio Network node of a wireless communication network deploying two frequency layers. The Radio Network node serves a User Equipment in a cell of a first of the two frequency layers. The User Equipment is configured to perform measurements on the first frequency layer, and to exclude measurements on a second of the two frequency layers. The method comprises receiving information from the User Equipment related to a coverage of a target cell of the second frequency layer, and determining whether to change to the target cell based on the received information.
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: September 13, 2016
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Joakim Axmon, Muhammad Ali Kazmi, Walter Gerhard Alois Müller