Patents by Inventor Christopher Callender

Christopher Callender 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: 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
  • Publication number: 20210144601
    Abstract: There is disclosed a method of operating a user equipment in a radio access network. The method includes transmitting measurement reporting, the measurement reporting pertaining to a measurement time interval. The measurement time interval is determined based on a SS block configuration. The disclosure also pertains to related methods and devices.
    Type: Application
    Filed: June 19, 2017
    Publication date: May 13, 2021
    Inventors: Muhammad KAZMI, Christopher CALLENDER, Icaro L. J. DA SILVA, Iana SIOMINA
  • Patent number: 11006287
    Abstract: Configuration of measurement requirements on cells and beams in NR is made more efficient by, in a user equipment, UE, receiving, information from a network node, which information indicates: a first number K of beams to be measured by the UE, and a second number L of cells in which the UE is required to measure the first number K of beams. The UE then carries out measurements using the received information; and performs at least one operational task based on a result of the measurements.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: May 11, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Muhammad Kazmi, Iana Siomina, Icaro Leonardo Jeronimo Da Silva, Christopher Callender, Helka-Liina Määttanen
  • Patent number: 10999794
    Abstract: A network node in a wireless communication network generates configuration information that configures an extent to which a wireless communication device autonomously adapts a number of different receiver components that the wireless communication device uses under different conditions at the wireless communication device, subject to minimum receiver component requirements respectively specified for the different conditions. In some examples, the different conditions may be associated with correlation of propagation channels received at the wireless communication device. The network node transmits the configuration information to the device. Correspondingly, the device autonomously adapts the number of different receiver components that the wireless communication device uses in accordance with the configuration information.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: May 4, 2021
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Torgny Palenius, Joakim Axmon, Christopher Callender, Maomao Chen, Muhammad Kazmi
  • Publication number: 20210067993
    Abstract: Embodiments of a wireless device, a network node, and methods of operation thereof for adapting a measurement reporting mapping for a measurement being or expected to be performed by the wireless device are disclosed. In some embodiments, a method performed by a wireless device in a wireless communication system comprises obtaining information indicative of whether a measurement being performed or expected to be performed by the wireless device on one or more signals is associated with a beamforming gain and determining a measurement report mapping based on the obtained information. The method further comprises using the determined measurement report mapping to transmit a measurement result to another node. In this manner, the measurement report mapping is adapted based on whether the measurement is associated with a beamforming gain.
    Type: Application
    Filed: January 11, 2019
    Publication date: March 4, 2021
    Inventors: Muhammad Kazmi, Christopher Callender
  • Patent number: 10912023
    Abstract: According to certain embodiments, a method for activating and deactivating multiple secondary cells (150A-B) includes receiving a first message requesting activation or deactivation of a first secondary cell (first SCell) (150A) for a first carrier. In response to the first message, a first procedure is initiated to activate or deactivate the first SCell (150A). The wireless device (110A) may have a first delay period (Tactivate_basic) within which to complete the first procedure. While performing the first procedure to activate or deactivate the first SCell (150A), a second message to activate, deactivate, configure or deconfigure a second SCell (150B) for a second carrier is received.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: February 2, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (PUBL)
    Inventors: Muhammad Kazmi, Christopher Callender, Iana Siomina
  • Publication number: 20210014752
    Abstract: Embodiments includes methods performed by a user equipment, LT, to schedule a plurality of mutually-exclusive repetitive measurement activities in a wireless network. Such embodiments include receiving, from a network node serving the UE, a measurement configuration comprising: least one measurement timing configuration for each of a plurality of mutually exclusive repetitive measurement activities; and identification of a measurement gap pattern for performing the measurement activities. Such embodiments also include selecting an analysis period for a measurement schedule, and determining, over the analysis period, measurement load information related to the measurement configuration. Such embodiments also include determining, based on the measurement load information, a measurement time scaling factor and a scaled measurement time for each measurement activity. Some embodiments include determining a measurement schedule and/or performing measurements based on the scaled measurement time.
    Type: Application
    Filed: April 4, 2019
    Publication date: January 14, 2021
    Inventors: Joakim Axmon, Christopher Callender, Muhammad Kazmi, Iana Siomina
  • Publication number: 20210014751
    Abstract: Embodiments include methods performed by a user equipment, UE, to schedule a plurality of measurement activities in a wireless network. Such embodiments include obtaining a measurement configuration (e.g., from a network node) relating to first and second groups of measurements, and a gap-sharing ratio between the first and second groups of measurements. Such embodiments also include selecting an analysis period for a measurement schedule, and determining, over the analysis period, measurement load information related to each of the first and second groups within one or more measurement gaps comprising the analysis period. Such embodiments also include determining, based on the measurement load information and the gap-sharing ratio, a measurement schedule for the first and second groups of measurements. Some embodiments include performing measurements according to the determined schedule.
    Type: Application
    Filed: April 4, 2019
    Publication date: January 14, 2021
    Inventors: Christopher Callender, Joakim Axmon, Muhammad Kazmi, Iana Siomina
  • Patent number: 10893491
    Abstract: According to certain embodiments, a method by a wireless device is provided for determining a maximum output power. The method includes obtaining, by the wireless device, a first time resource for transmitting a first signal in ?a first cell on a first carrier and a second time resource for transmitting a second signal in a second cell on a second carrier. Based on the first time resource and the second time resource, the maximum output power is 10 determined. The first signal and the second signal are transmitted based on the determined maximum output power.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: January 12, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Muhammad Kazmi, Christian Bergljung, Christopher Callender, Dominique Everaere, Imadur Rahman, Laetitia Falconetti, Mårten Sundberg
  • Patent number: 10893427
    Abstract: Embodiments herein disclose e.g. a method performed by a communication terminal for handling signal measurements in a wireless communication network (1). The communication terminal may adapt a measurement procedure to construct a measurement sample of a reference signal from a cell operated by a radio network node (12); or adjust a filter algorithm of the measurement procedure based on one or more previous valid measurement samples of a previous reference signal from the cell, when measuring on the cell where reference signals are not available for the communication terminal at every designated reference signal occasion.
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: January 12, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Mattias Bergström, Christopher Callender, Muhammad Kazmi, Imadur Rahman
  • Patent number: 10893428
    Abstract: Embodiments described herein are directed to methods for adaptively configuring a measurement period in a user equipment or another network node. The measurement period can be determined based at least in part on an assessment of one or more conditions, wherein each of the measurement periods is associated with at least one condition. The determined measurement period can be used for performing and/or reporting one or more measurements. According to certain embodiments, the measurement period may be adapted by maintaining concurrently two or more measurement filters with different measurement periods and then selecting the appropriate one, based on a condition assessment result.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: January 12, 2021
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Christopher Callender, Iana Siomina
  • Publication number: 20200359241
    Abstract: A method for performing radio link monitoring comprises performing, by a user equipment (UE), a radio link monitoring (RLM) procedure with first RLM parameters; receiving, at the UE, a message including at least one second RLM parameter; identifying, by the UE, a difference between the first RLM parameters and the at least one second RLM parameter; and resetting, at the UE, at least one of the first RLM parameters in response to identifying the difference between the first RLM parameters and the at least one second RLM parameter. The method may configure the UE upon performing RLM by adapting the difference between the current RLM parameters and the future parameters, so that the UE behavior may become clear.
    Type: Application
    Filed: November 16, 2018
    Publication date: November 12, 2020
    Inventors: Iana SIOMINA, Muhammad KAZMI, Christopher CALLENDER, Helka-Liina MÄÄTTANEN, Icaro L. J. DA SILVA
  • Patent number: 10820153
    Abstract: At least one periodic operation is configured in a wireless communication system comprising a plurality of wireless devices and a serving network serving the wireless devices. The periodic operation is selectively configurable at one of a shorter periodicity interval and a longer periodicity interval. A method implementation performed by the serving network includes obtaining speed information indicative of the speed of one or more of the wireless devices in the wireless communication system and determining, based on the speed information, whether at least one of the one or more-wireless devices is moving at a speed at or above a speed threshold. The method further comprises configuring, if it is determined that at least one of the one or more-wireless devices is moving at a speed at or above the speed threshold, the at least one periodic operation with the shorter periodicity interval.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: October 27, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Christopher Callender, Muhammad Kazmi, Iana Siomina
  • Publication number: 20200288337
    Abstract: The invention refers to a method in a user equipment, UE, for a measurement gap pattern configuration including receiving a configuration information indicative of a measurement gap pattern configuration, and a bandwidth part, BW, configuration, determining an association between measurement gap patterns and BW parts, receiving a message to change the active BW part to one of the configured BW parts, and changing the measurement gap pattern as a function of the corresponding BW part and the association; the invention further refers to a corresponding method in a network node; to corresponding UE, a corresponding network node, and computer programs.
    Type: Application
    Filed: October 8, 2018
    Publication date: September 10, 2020
    Inventors: Christopher CALLENDER, Icaro L. J. DA SILVA, Rui FAN, Muhammad KAZMI, Helka-Liina MÄÄTTANEN, Iana SIOMINA, Henning WIEMANN
  • Patent number: 10757669
    Abstract: The disclosure relates to a method and wireless device configured for communication in a wireless communication network, the method comprising the steps of obtaining a first transmission time interval, TTI, used for transmission timing of a first signal, obtaining a second TTI, used for transmission timing of a second signal, obtaining a maximum received time difference, MRTD, parameter, and operating the first signal between a wireless device and a first cell using the MRTD parameter and a first carrier, and the second signal between the wireless device and a second cell using the MRTD parameter and a second carrier, the second carrier being different from the first carrier, wherein the MRTD parameter is obtained by determining the MRTD parameter based on the first and the second TTI. The disclosure further relates to a network node and a method thereof.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: August 25, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Imadur Rahman, Christopher Callender, Dominique Everaere, Muhammad Kazmi
  • Patent number: 10750455
    Abstract: A method in a wireless device for determining a power allocation for an uplink transmission and a wireless device configured for determining a power allocation for an uplink transmission. Wherein the power allocation is based on a remaining power for scheduled transmissions derived from a maximum transmitter power of the wireless device, less any power for non-scheduled transmissions and a reserved power for any scheduled data transmission on the second frequency derived from a filtered power of a dedicated physical control channel, DPCCH, and a power offset for an enhanced-transport format combination, E-TFC, of a transmission for the second frequency configured with the second TTI, wherein the filtered power is averaged over a number of slots having a total duration equal to the second TTI length.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: August 18, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Gerardo Agni Medina Acosta, Christopher Callender, Cecilia Eklöf, Waikwok Kwong, Kazuyoshi Uesaka
  • Patent number: 10716136
    Abstract: A wireless device and a method for a wireless device served by a first network node on a primary cell (PCell) is provided. The wireless device is capable of using at least two secondary serving cells (SCells). A first request to perform a measurement on at least one cell on a first secondary component carrier (SCC) with a deactivated first SCell using at least a first measurement cycle is received. A second request to perform a measurement on at least one cell on a second SCC with a deactivated second SCell using at least a second measurement cycle is received. An effective serving cell interruption probability (Peff) of missed at least one of Acknowledgement and Negative-Acknowledgement signaling in an uplink direction is determined based on at least the first measurement cycle and the second measurement cycle. A serving cell interruption probability is ensured to not exceed the determined Peff.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: July 14, 2020
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Muhammad Kazmi, Christopher Callender, Iana Siomina
  • Publication number: 20200178129
    Abstract: The solution outlined in this disclosure is a method for determining intra-frequency operations and inter-frequency operations, the method comprises obtaining a first measurement resource of a first cell as a reference measurement resource, obtaining a second measurement resource of a second cell, the second measurement resource of the second cell and the first measurement resource of the first cell are of the same type, and determining whether the second cell operates on an intra-frequency carrier or an inter-frequency carrier by comparing the reference measurement resource to the second measurement resource of the second cell. The method may be carried out in a user equipment or a network node.
    Type: Application
    Filed: June 25, 2018
    Publication date: June 4, 2020
    Inventors: Iana SIOMINA, Muhammad KAZMI, Christopher CALLENDER
  • Publication number: 20200154296
    Abstract: A system and method for controlling measurements gaps in a communication system (300). In an embodiment, an apparatus (370) is operable in the communication system (300) and includes processing circuitry (375) and memory (380). The apparatus (370) is configured to receive a measurement gap pattern (610, 710) to perform a radio signal measurement from the communication system (300), and determine a limited duration to apply the measurement gap pattern (610, 710) to perform the radio signal measurement. The apparatus (370) is also configured to perform the radio signal measurement during the limited duration of the measurement gap pattern (610, 710).
    Type: Application
    Filed: March 14, 2018
    Publication date: May 14, 2020
    Inventors: Iana Siomina, Christopher Callender
  • Publication number: 20200128412
    Abstract: Configuration of measurement requirements on cells and beams in NR is made more efficient by, in a user equipment, UE, receiving, information from a network node, which information indicates: a first number K of beams to be measured by the UE, and a second number L of cells in which the UE is required to measure the first number K of beams. The UE then carries out measurements using the received information; and performs at least one operational task based on a result of the measurements.
    Type: Application
    Filed: November 16, 2018
    Publication date: April 23, 2020
    Inventors: Muhammad KAZMI, Iana SIOMINA, Icaro Leonardo Jeronimo DA SILVA, Christopher CALLENDER, Helka-Liina MÄÄTTANEN