Patents by Inventor Jingyi Liao

Jingyi Liao 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).

  • Patent number: 11831357
    Abstract: A method for limiting Channel Quality Indicator (CQI) reporting from a User Equipment to a network node is provided where a User Equipment can transmit CQI reports to a network node, such as e.g. a base station, when the User Equipment is operating in low transmission and/or low reception activity mode. A limited CQI reporting is obtained by triggering the reporting according to one or more predefined rules, which to at least some extent depend on CQI specific information provided to the User Equipment from the network node. A User Equipment and a network node adapted to operate in accordance with the suggested method are also provided.
    Type: Grant
    Filed: August 30, 2022
    Date of Patent: November 28, 2023
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Muhammad Kazmi, Jingyi Liao, Rong Hu, Stefan Wager
  • Publication number: 20220416915
    Abstract: A method for limiting Channel Quality Indicator (CQI) reporting from a User Equipment to a network node is provided where a User Equipment can transmit CQI reports to a network node, such as e.g. a base station, when the User Equipment is operating in low transmission and/or low reception activity mode. A limited CQI reporting is obtained by triggering the reporting according to one or more predefined rules, which to at least some extent depend on CQI specific information provided to the User Equipment from the network node. A User Equipment and a network node adapted to operate in accordance with the suggested method are also provided.
    Type: Application
    Filed: August 30, 2022
    Publication date: December 29, 2022
    Inventors: Muhammad KAZMI, Jingyi LIAO, Rong HU, Stefan WAGER
  • Patent number: 11469833
    Abstract: A method for limiting Channel Quality Indicator (CQI) reporting from a User Equipment to a network node is provided where a User Equipment can transmit CQI reports to a network node, such as e.g. a base station, when the User Equipment is operating in low transmission and/or low reception activity mode. A limited CQI reporting is obtained by triggering the reporting according to one or more predefined rules, which to at least some extent depend on CQI specific information provided to the User Equipment from the network node. A User Equipment and a network node adapted to operate in accordance with the suggested method are also provided.
    Type: Grant
    Filed: April 13, 2016
    Date of Patent: October 11, 2022
    Assignee: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Muhammad Kazmi, Jingyi Liao, Rong Hu, Stefan Wager
  • Patent number: 9813953
    Abstract: A radio network node (RNN) (202) and a method therein, for handling of changing primary cell from a first cell (204) to a second cell (206) during re-selection of primary cell of a user equipment (UE) (208). The RNN is configured to serve the first cell, the UE is located within the first cell and is served by the RNN, and RNN and the UE are comprised in a communications system (200). The RNN transmits an RRCConnectionReconfiguration signal to the UE, which signal comprises an indication that the UE does not need to perform a random access procedure for the second cell when changing primary cell from the first cell to the second cell.
    Type: Grant
    Filed: July 4, 2012
    Date of Patent: November 7, 2017
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Wei Zhao, Jingyi Liao, Mikael Wittberg
  • Publication number: 20160226604
    Abstract: A method for limiting Channel Quality Indicator (CQI) reporting from a User Equipment to a network node is provided where a User Equipment can transmit CQI reports to a network node, such as e.g. a base station, when the User Equipment is operating in low transmission and/or low reception activity mode. A limited CQI reporting is obtained by triggering the reporting according to one or more predefined rules, which to at least some extent depend on CQI specific information provided to the User Equipment from the network node. A User Equipment and a network node adapted to operate in accordance with the suggested method are also provided.
    Type: Application
    Filed: April 13, 2016
    Publication date: August 4, 2016
    Inventors: Muhammad KAZMI, Jingyi LIAO, Rong HU, Stefan WAGER
  • Patent number: 9338676
    Abstract: A method for limiting Channel Quality Indicator (CQI) reporting from a User Equipment to a network node is provided where a User Equipment can transmit CQI reports to a network node, such as e.g. a base station, when the User Equipment is operating in low transmission and/or low reception activity mode. A limited CQI reporting is obtained by triggering the reporting according to one or more predefined rules, which to at least some extent depend on CQI specific information provided to the User Equipment from the network node. A User Equipment and a network node adapted to operate in accordance with the suggested method are also provided.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: May 10, 2016
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Muhammad Kazmi, Jingyi Liao, Rong Hu, Stefan Wager
  • Patent number: 9258787
    Abstract: The disclosure relates to a method of globally balancing the transmit power in a cellular radio system with tight reuse of frequencies, to a central controller node, and to an access point that in combination with conventional power control schemes balances the downlink transmission power on re-used frequencies in order to balance co-channel interference in a multi-cell environment. The power balancing scheme takes the instantaneous channel variation and co-channel interference into account and satisfies the throughput requirements of the different cells when allocating downlink power to the user equipments. Global power balancing dynamically assigns a token to or takes a token away from an individual reused radio channel based on quality of, or based on transmission power in the channel. The balancing of transmission power, along with the conventional power scheme, prevents a global increase or global decrease of interference in the multi-cellular system.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: February 9, 2016
    Assignee: Telefonaktiebolaget LM Ericsson(publ)
    Inventors: Muhammad Kazmi, Jingyi Liao
  • Patent number: 9088318
    Abstract: Embodiments of the invention relates to a method in a controller node for distributing code text of a joint spatial coding in a communications network. The communications network comprises at least two communication nodes each comprising at least one transmit antenna. The method comprises to joint spatial code (T2, S11) a symbol resulting in at least a first code text and a second code text. Then, the method comprises to group (T4, S12) the transmit antennas in the communications network into at least a first transmit antenna group and a second transmit antenna group based on the location of coverage area of the transmit antennas. Finally, the method comprises to distribute (T6) the first code text to the first transmit antenna group and the second code text to the second transmit antenna group. The invention is particularly useful for transmission in Multimedia Broadcast Single Frequency Network (MBSFN) comprising of communication nodes equipped with unequal number of transmit antennas.
    Type: Grant
    Filed: April 1, 2014
    Date of Patent: July 21, 2015
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Jingyi Liao, Muhammad Kazmi
  • Publication number: 20150172971
    Abstract: A radio network node (RNN) (202) and a method therein, for handling of changing primary cell from a first cell (204) to a second cell (206) during re-selection of primary cell of a user equipment (UE) (208). The RNN is configured to serve the first cell, the UE is located within the first cell and is served by the RNN, and RNN and the UE are comprised in a communications system (200). The RNN transmits an RRCConnectionReconfiguration signal to the UE, which signal comprises an indication that the UE does not need to perform a random access procedure for the second cell when changing primary cell from the first cell to the second cell.
    Type: Application
    Filed: July 4, 2012
    Publication date: June 18, 2015
    Applicant: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Wei Zhao, Jingyi Liao, Mikael Wittberg
  • Patent number: 9031593
    Abstract: A method for determining data enabling a plurality of secondary base stations to time their transmissions to a mobile station within a timing range. The mobile station obtains time delays of transmissions from each of the secondary base stations in reaching the mobile station, and determines time delay differences between the time delays and a reference time delay associated with a primary base station. The mobile station transmits the time delay differences to the plurality of secondary base stations. Each secondary base station receives the difference between its own transmission time delay and the reference time delay, compares the difference with a time range, and corrects the timing of its transmissions if the difference is outside of the time range.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: May 12, 2015
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventor: Jingyi Liao
  • Patent number: 8965433
    Abstract: The present invention relates to the area of communication, and especially to a method and an arrangement for antenna calibration in a communication system comprising a baseband unit (BBU) and distributed radio remote units (RRUs). The present invention aims to limit antenna calibration duration in the antenna calibration chain. A cable delay based on the length of the cable connecting the BBU and the RRU is obtained. A delay compensation is calculated based upon the cable delay. Thereupon the antenna calibration chain utilized by the BBU and the RRU is adapted based upon the delay compensation.
    Type: Grant
    Filed: October 29, 2009
    Date of Patent: February 24, 2015
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventor: Jingyi Liao
  • Patent number: 8947997
    Abstract: The exemplary embodiments of the present invention relate to a transmission part (500), to a receiver part (600), to a transceiver comprising the transmission and receiver parts, to a radio base station comprising the transceiver, to a method in the transmission part (500) and to a method in a receiver part (600). According to the embodiments of the present invention, the transmission part (500) is configured to generate calibration sequences; process the sequences to determine a resulting calibration signal prior to transmission to a receiver part for enabling the receiver part to detect group delay of the received resulting calibration signal for calibration of the transceiver and/or of the radio base station in a wideband communications system.
    Type: Grant
    Filed: October 27, 2009
    Date of Patent: February 3, 2015
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Jingyi Liao, Zhangyong Ma
  • Patent number: 8925557
    Abstract: A gel nail sticker includes a base film layer, and a pressure-sensitive adhesive layer, wherein the base film layer is a PET release film or release paper, and the pressure-sensitive adhesive layer is bonded to the bottom of a soft layer and connected with the base film layer; the soft layer is printed with at least one layer of screen printing color layer or shimmering powder layer by screen printing; a first crystal gel layer covers on the surface of the shimmering powder layer or the screen printing color layer, and a second crystal gel layer envelops the first crystal gel layer, the shimmering powder layer and the screen printing color layer, and is bonded to the soft layer and the pressure-sensitive adhesive layer. A manufacturing process for the gel nail sticker, includes screen printing of the various layers.
    Type: Grant
    Filed: August 2, 2011
    Date of Patent: January 6, 2015
    Inventor: Jingyi Liao
  • Patent number: 8861328
    Abstract: The present invention relates to a method for antenna calibration in a communication system having a Bandwidth divided into multiple frequency intervals M with multiple communication units 40; 50, each comprising communication circuitry 21, 24: 31, 34; 41, 42; 51, 52, 54 connected to an antenna arrangement 22, 25; 32, 35; 44, 45; 55, 49, communicating with each other over multiple communication channels.
    Type: Grant
    Filed: June 17, 2009
    Date of Patent: October 14, 2014
    Assignee: Optis Cellular Technology, LLC
    Inventors: Yuxin Guo, Jingyi Liao
  • Patent number: 8804660
    Abstract: A serving base station provides time slot allocation information to a target base station for a mobile station that will likely undergo handover. The target base station uses the time slot allocation information to determine when resources should be reserved to facilitate the handover of the mobile station.
    Type: Grant
    Filed: June 5, 2008
    Date of Patent: August 12, 2014
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventor: Jingyi Liao
  • Patent number: 8798012
    Abstract: The present invention relates to a method and arrangement for switching between different modes in a communications network. The network comprises a number of transmit and a number of receive antennas, said modes comprising a single user mode and a multiple user mode. The method including the steps of: transmitting reference signals or predetermined sequences corresponding to both said modes comprising respective weighting matrices for said modes during a preparation phase, which comprises of one or more transmission time intervals (TTI), transmitting on a common channel, signalling information indicating start and duration of said preparation phase to all receiving equipments in a reception area.
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: August 5, 2014
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Muhammad Kazmi, Jingyi Liao
  • Publication number: 20140211877
    Abstract: Embodiments of the invention relates to a method in a controller node for distributing code text of a joint spatial coding in a communications network. The communications network comprises at least two communication nodes each comprising at least one transmit antenna. The method comprises to joint spatial code (T2, S11) a symbol resulting in at least a first code text and a second code text. Then, the method comprises to group (T4, S12) the transmit antennas in the communications network into at least a first transmit antenna group and a second transmit antenna group based on the location of coverage area of the transmit antennas. Finally, the method comprises to distribute (T6) the first code text to the first transmit antenna group and the second code text to the second transmit antenna group. The invention is particularly useful for transmission in Multimedia Broadcast Single Frequency Network (MBSFN) comprising of communication nodes equipped with unequal number of transmit antennas.
    Type: Application
    Filed: April 1, 2014
    Publication date: July 31, 2014
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Jingyi LIAO, Muhammad KAZMI
  • Publication number: 20140150812
    Abstract: A gel nail sticker includes a base film layer, and a pressure-sensitive adhesive layer, wherein the base film layer is a PET release film or release paper, and the pressure-sensitive adhesive layer is bonded to the bottom of a soft layer and connected with the base film layer; the soft layer is printed with at least one layer of screen printing color layer or shimmering powder layer by screen printing; a first crystal gel layer covers on the surface of the shimmering powder layer or the screen printing color layer, and a second crystal gel layer envelops the first crystal gel layer, the shimmering powder layer and the screen printing color layer, and is bonded to the soft layer and the pressure-sensitive adhesive layer. A manufacturing process for the gel nail sticker includes screen printing of the various layers.
    Type: Application
    Filed: August 2, 2011
    Publication date: June 5, 2014
    Inventor: Jingyi Liao
  • Patent number: 8725189
    Abstract: The present invention relates to cellular mobile radio systems, and more especially it relates to multi-cell interference-limited environments, such as Orthogonal Frequency Division Multiple Access, OFDMA, and Code Division Multiple Access, CDMA, cellular mobile radio systems. Particularly, it relates to transmission power allocation in such systems. Method and systems where transmission power is based on parameters directly affecting perceived user performance parameters are disclosed.
    Type: Grant
    Filed: April 23, 2007
    Date of Patent: May 13, 2014
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Muhammad Ali Kazmi, Jingyi Liao
  • Patent number: 8725194
    Abstract: In a radio network in which multiple base stations can communicate with multiple user terminals in a coordinated way, user terminals may be grouped into groups, each group representing a coordination scheme to be used for user terminals in the group. The groups may be chosen, for example, according to path loss or QoS requirements Preferably there are three groups requiring no coordination, multiuser coherent coordination and single user coherent coordination respectively. Grouping may be done dynamically according to one or more of the following factors: —the terminal's signalling overhead—the affordable processing complexity—the traffic load—the radio conditions. The grouping unit may be placed in one or more base stations or in any other suitable unit in the network.
    Type: Grant
    Filed: June 30, 2008
    Date of Patent: May 13, 2014
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Jiansong Gan, Muhammad Kazmi, Jingyi Liao, Qingyu Miao