Patents by Inventor Thomas A. Chapman

Thomas A. Chapman 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: 20160373951
    Abstract: The present disclosure concerns radio communication. More particularly, the present disclosure introduces a method and apparatuses (610) for adaptive control of UE measurements in dependence of UE data activity level (e.g., high activity vs. low activity).
    Type: Application
    Filed: July 1, 2015
    Publication date: December 22, 2016
    Inventors: Christopher CALLENDER, Thomas CHAPMAN, Mikae ZIRÉN
  • Publication number: 20160323822
    Abstract: A method in a User Equipment (UE) of performing measurements of a plurality of measurement types is provided. The UE performs a measurement of a first measurement type and at least one of a measurement of a second and a third measurement type. In the performed measurements: the at least one of a measurement of the second and the third measurement type is performed during a required time such that first pre-defined requirements for the at least one of a measurement of the second and third measurement type are met, the required time forming part of a time available for measurements, and the measurement of the first measurement type is performed during a remaining time, during which the at least one of a measurement of the second measurement type and a measurement of the third measurement type is not performed.
    Type: Application
    Filed: July 7, 2016
    Publication date: November 3, 2016
    Inventors: Thomas CHAPMAN, Muhammad KAZMI
  • Patent number: 9462524
    Abstract: A method and system for performing cell change by a wireless device are disclosed. According to one aspect, the cell change is from a first group of cells of a first radio access technology, RAT, to a second group of cells of a second RAT. Performance of a cell change includes receiving a cell change command. In response to the cell change command, the wireless device synchronizes to interoperate with a first cell of the second group of cells of the second RAT within a first specified period of time. The wireless device synchronizes to interoperate with at least one remaining cell of the second group of cells of the second RAT within a second specified period of time ending after an end of the first specified period of time.
    Type: Grant
    Filed: May 6, 2015
    Date of Patent: October 4, 2016
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Thomas Chapman, Muhammad Kazmi
  • Publication number: 20160286448
    Abstract: A method and system for performing cell change by a wireless device are disclosed. According to one aspect, the cell change is from a first group of cells of a first radio access technology, RAT, to a second group of cells of a second RAT. Performance of a cell change includes receiving a cell change command. In response to the cell change command, the wireless device synchronizes to interoperate with a first cell of the second group of cells of the second RAT within a first specified period of time. The wireless device synchronizes to interoperate with at least one remaining cell of the second group of cells of the second RAT within a second specified period of time ending after an end of the first specified period of time.
    Type: Application
    Filed: May 6, 2015
    Publication date: September 29, 2016
    Inventors: Thomas CHAPMAN, Muhammad KAZMI
  • Publication number: 20160286432
    Abstract: According to some embodiments, a method may be provided at a first network node supporting inter-node interference reduction. The method may include communicating an interference reduction report activation message between the first network node and a second network node. After communicating the interference reduction report activation message, an interference reduction assistance information message may be communicated between the first and second network nodes. After communicating the interference reduction assistance information message, an interference reduction report deactivation message may be communicated between the first and second network nodes.
    Type: Application
    Filed: June 18, 2015
    Publication date: September 29, 2016
    Inventors: Angelo CENTONZA, Sairamesh NAMMI, Thomas CHAPMAN, Muhammad KAZMI, Torbjörn ELFSTRÖM
  • Patent number: 9445425
    Abstract: A method of transmission in a communications network is provided in which data is transmitted using a first radio access technology and a second radio access technology. The method includes providing an anchor carrier associated only with the first radio access technology and another carrier shared between the first radio access technology and the second radio access technology. Transmission via the second radio access technology is muted in the shared carrier during at least one subframe of each data frame transmitted using the second radio access technology. Data is transmitted using the first radio access technology in the shared carrier only during the at least one subframe in which transmission using the second radio access technology is muted.
    Type: Grant
    Filed: October 24, 2011
    Date of Patent: September 13, 2016
    Assignee: Nokia Solutions and Networks Oy
    Inventors: Thomas Chapman, Frank Frederiksen, Jani Matti Johannes Moilanen, Jeroen Wigard
  • Patent number: 9420486
    Abstract: A method in a User Equipment (UE) of performing measurements of a plurality of measurement types is provided. The UE performs a measurement of a first measurement type and at least one of a measurement of a second and a third measurement type. In the performed measurements: the at least one of a measurement of the second and the third measurement type is performed during a required time such that first pre-defined requirements for the at least one of a measurement of the second and third measurement type are met, the required time forming part of a time available for measurements, and the measurement of the first measurement type is performed during a remaining time, during which the at least one of a measurement of the second measurement type and a measurement of the third measurement type is not performed.
    Type: Grant
    Filed: August 7, 2014
    Date of Patent: August 16, 2016
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Thomas Chapman, Muhammad Kazmi
  • Patent number: 9380544
    Abstract: It is presented a method for controlling multiple input multiple output, MIMO, pilot channel boosting. The method is performed in a user equipment, UE, capable of MIMO transmissions using a primary and a secondary stream. The method comprising the steps of: determining a rank used for uplink transmissions from the UE; and determining a boosting parameter affecting power boosting of an Enhanced Dedicated Physical Control Channel, E-DPCCH, and a Secondary Dedicated Physical Control Channel, S-DPCCH, based on the rank. A corresponding UE, base station and associated method are also presented.
    Type: Grant
    Filed: March 19, 2013
    Date of Patent: June 28, 2016
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Erik Larsson, Peter Von Wrycza, Bo Goransson, Cagatay Konuskan, Thomas Chapman
  • Patent number: 9374210
    Abstract: Multiple antennas employed at transmitting and receiving nodes can significantly increase a MIMO system capacity, especially when channel knowledge of link(s) between the transmitting and receiving nodes is available at the transmitting node. Channel knowledge may be acquired through feedback provided by the receiving node based on a plurality of common pilots transmitted by the transmitting node. The common pilots may include legacy and non-legacy pilots. If the feedback indicates that data demodulation at the receiving node can be enhanced, the transmitting node may also transmit demodulation pilot signal(s), which may coincide with the transmission of data. The receiving node can use the demodulation pilot signal(s), alone or with the common pilot signal(s), to demodulate data received from the transmitting node. The transmitting node may notify the receiving node to monitor for the demodulation pilot signal(s) through higher layer signaling and/or scheduling orders over a control channel.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: June 21, 2016
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Sairamesh Nammi, Thomas Chapman, Bo Göransson
  • Patent number: 9357511
    Abstract: Two power control loops for antenna switching transmit diversity are realized by a user terminal including two antennas (110, 120), one power amplifier (140) for amplifying the signals to be transmitted from each of the antennas, and a switch (130) switching the transmission power of the power amplifier from one antenna to the other antenna. Accordingly, the user terminal is enabled to alternately transmit data packets, with its two antennas. A closed loop power control mechanism in the user terminal is adapted to update, on receipt of a transmission power control command from a base station, the transmission power relative to the level of two slots previously.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: May 31, 2016
    Assignee: NOKIA TECHNOLOGIES OY
    Inventors: Thomas Chapman, Terence Edwin Dodgson, Volker Franz, Malgorzata Wimmer
  • Patent number: 9357417
    Abstract: System Information (SI) of a second node of a wireless network is obtained for a wireless device that is communicating with a first node of the wireless network. In response to at least one criterion, one or more of the following operations are performed, to obtain the SI of the second node: decoding at least one channel of the second node to obtain the SI of the second node; receiving the SI of the second node from a node other than the second node; and/or inferring at least one component of the SI of the second node based on a corresponding at least one component of the SI of the first node. Related systems, methods, nodes and wireless devices are also described.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: May 31, 2016
    Assignee: Telefonaktiebolaget L M Ericsson
    Inventors: Iana Siomina, Muhammad Kazmi, Thomas Chapman
  • Publication number: 20160066330
    Abstract: Methods are provided to operate a first node in a radio access network including a plurality of base stations. The method includes communicating radiation pattern information for a radio access network transmission. The radiation pattern information is communicated between the first node and a second node, and the radiation pattern information includes an indication of power and an indication of direction associated with the indication of power for the radio access network transmission. Related network nodes and base stations are also discussed.
    Type: Application
    Filed: August 28, 2014
    Publication date: March 3, 2016
    Inventors: Angelo Centonza, Thomas Chapman
  • Publication number: 20160066312
    Abstract: Methods may be provided to operate a first node in a radio access network including a plurality of base stations. For example, radiation pattern information for a radio access network transmission may be received from a second node. Moreover, the radiation pattern information may include an indication of power and an indication of direction associated with the indication of power for the radio access network transmission. Related network nodes and base stations are also discussed.
    Type: Application
    Filed: August 28, 2014
    Publication date: March 3, 2016
    Inventors: Angelo Centonza, Thomas Chapman
  • Patent number: 9219505
    Abstract: The invention provides a method for processing signals in a radio transmission apparatus (60) and a radio transmission apparatus (60) comprising a plurality of radio transmitters (61, 62), wherein clipping is applied to a signal in at least one of the plurality of radio transmitters, wherein the amount of clipping or/and a clipping threshold is adjusted individually for each of the plurality of radio transmitters.
    Type: Grant
    Filed: October 1, 2013
    Date of Patent: December 22, 2015
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Thomas Chapman, Torbjorn Elfstrom, Farshid Ghasemzadeh, Leonard Rexberg
  • Publication number: 20150358845
    Abstract: A method in a User Equipment, (UE) of performing measurements of a plurality of measurement types is provided. The UE performs a measurement of a first measurement type and at least one of a measurement of a second and a third measurement type. In the performed measurements: the at least one of a measurement of the second and the third measurement type is performed during a required time such that first pre-defined requirements for the at least one of a measurement of the second and third measurement type are met, the required time forming part of a time available for measurements, and the measurement of the first measurement type is performed during a remaining time, during which the at least one of a measurement of the second measurement type and a measurement of the third measurement type is not performed.
    Type: Application
    Filed: August 7, 2014
    Publication date: December 10, 2015
    Inventors: Thomas CHAPMAN, Muhammad KAZMI
  • Publication number: 20150341148
    Abstract: Techniques for minimizing the loss of radio signals transmitted on and/or received from serving cells in a multi-carrier system by selectively adapting the time instance at which a wireless terminal: (1) changes its radio frequency (RF) bandwidth or activates a second RF chain or any additional RF chain for measuring on one or more secondary serving cells, and/or (2) performs setup or release of one or more secondary serving cells. An example method, implemented in a radio network node, comprises determining (510) a scheduling instance during which a wireless terminal is expected to be scheduled on at least one cell; and, determining (520) a timing at which to send a setup or release command for at least one secondary cell such that the requested set up or release procedure does not coincide with the scheduling instance.
    Type: Application
    Filed: December 5, 2013
    Publication date: November 26, 2015
    Inventors: Muhammad Kazmi, Thomas CHAPMAN
  • Publication number: 20150297967
    Abstract: A hockey training device is provided. The training device includes a substantially flat sheet with a smooth upper surface. The present invention includes a plurality of elastic band suspended to the upper surface. A first vertical post and a second vertical post may be attached to the flat sheet so that the elastic band is secured about the first and second vertical posts. The elastic band includes a front surface facing towards a center portion of the flat sheet. Therefore, a puck may be passed towards the elastic band and the elastic band rebounds the puck towards the user.
    Type: Application
    Filed: April 16, 2015
    Publication date: October 22, 2015
    Inventor: Thomas Chapman Simon
  • Publication number: 20150288551
    Abstract: The invention provides a method for processing signals in a radio transmission apparatus (60) and a radio transmission apparatus (60) comprising a plurality of radio transmitters (61, 62), wherein clipping is applied to a signal in at least one of the plurality of radio transmitters, wherein the amount of clipping or/and a clipping threshold is adjusted individually for each of the plurality of radio transmitters.
    Type: Application
    Filed: October 1, 2013
    Publication date: October 8, 2015
    Inventors: Thomas Chapman, Torbjörn Elfström, Farshid Ghasemzadeh, Leonard Rexberg
  • Publication number: 20150270937
    Abstract: Multiple antennas employed at transmitting and receiving nodes can significantly increase a MIMO system capacity, especially when channel knowledge of link(s) between the transmitting and receiving nodes is available at the transmitting node. Channel knowledge may be acquired through feedback provided by the receiving node based on a plurality of common pilots transmitted by the transmitting node. The common pilots may include legacy and non-legacy pilots. If the feedback indicates that data demodulation at the receiving node can be enhanced, the transmitting node may also transmit demodulation pilot signal(s), which may coincide with the transmission of data. The receiving node can use the demodulation pilot signal(s), alone or with the common pilot signal(s), to demodulate data received from the transmitting node. The transmitting node may notify the receiving node to monitor for the demodulation pilot signal(s) through higher layer signaling and/or scheduling orders over a control channel.
    Type: Application
    Filed: June 3, 2015
    Publication date: September 24, 2015
    Inventors: Sairamesh Nammi, Thomas Chapman, Bo Göransson
  • Publication number: 20150222345
    Abstract: A method in a node is disclosed. The method comprises determining a beam forming quality indicator for the network node, the beam forming quality indicator indicating a beam forming performance gain from the network node having beam forming capability, wherein the beam forming quality indicator comprises at least or is a function of at least a reference signal quality and an achievable signal quality. The method further comprises performing one or more radio operations using the determined beam forming quality indicator.
    Type: Application
    Filed: February 3, 2015
    Publication date: August 6, 2015
    Inventors: Thomas Chapman, Torbjörn Elfström, Muhammad Kazmi