Patents by Inventor Jian Gu

Jian Gu 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: 7852962
    Abstract: A channel structure that can efficiently transmit more data control bits, e.g., required by future wireless communication systems, yet achieve sufficient detection and false alarm performance uses tail-biting convolutional coding and Cyclical Redundancy Check (CRC). In certain implementations, symbol repetition, interleaving and/or scrambling can also be included. Also, depending on the implementation, modulation schemes such as Bi-Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK) or Quadrature Amplitude Modulation (QAM) can be used in conjunction with the other coding techniques.
    Type: Grant
    Filed: July 26, 2007
    Date of Patent: December 14, 2010
    Assignee: Via Telecom Co., Ltd.
    Inventors: Jian Gu, Hongkui Yang, Linlin He
  • Patent number: 7835315
    Abstract: An approach is provided for addressing in a multiple carrier communication system. In one embodiment, a group index is assigned to a group of terminals of a communication network. The group index permits sharing of addressing indices supported by the communication network for transmission of data to the group of terminals. In another embodiment, a plurality of terminals is classified using preamble indices corresponding to the terminals into one or more classes. A multi-user packet, which utilizes the preamble indices to activate only a class of the terminals for processing the multi-user packet, is generated.
    Type: Grant
    Filed: August 22, 2006
    Date of Patent: November 16, 2010
    Assignee: Nokia Corporation
    Inventors: Zhouyue Pi, Zhigang Rong, Lin Ma, Fei Frank Zhou, Mark W. Cheng, Jian Gu, Zhu Yuan
  • Publication number: 20100202501
    Abstract: A communication device wirelessly coupled to another communication device. The communication device includes a first transmitter and a first receiver. The first transmitter is configured to transmit first power control bit information to the base station over a reverse link. The first transmitter has a timeline manager, configured to transmit the first power control bit information at a first rate according to a first pattern within a frame. The first receiver is configured to receive second power control bit information from the another communication device over a forward link. The first receiver has an adaptive controller, configured to determine the first rate and the first pattern. The first rate and the first pattern are selected from a plurality of rates and patterns available for transmission of the first power control bit information and the second power control bit information.
    Type: Application
    Filed: January 21, 2010
    Publication date: August 12, 2010
    Applicant: VIA TELECOM, INC.
    Inventors: Hong-Kui Yang, Shu Wang, Kraig Lamar Anderson, Jian Gu, Tingting Miao, Zhigang Tian
  • Publication number: 20100136979
    Abstract: An apparatus for performing a soft handoff including a power estimator, cell selector, and feedback channel generator. The power estimator receives a plurality of pilot signals that each correspond to an associated base station within an active set registry, and estimates a power level for each of the plurality of pilot signals. The cell selector is coupled to the power estimator, and is configured to select one or more base stations within the active set registry for selective blanking of a corresponding one or more of the plurality of pilot signals during a soft handoff operation. The feedback channel generator is coupled to the cell selector, and is configured to generate a cell selection feedback signal indicating the one or more base stations, where the cell selection feedback signal is subsequently transmitted to the one or more base stations, and where the cell selection feedback signal directs the one or more base stations to perform the selective blanking.
    Type: Application
    Filed: November 23, 2009
    Publication date: June 3, 2010
    Applicant: VIA TELECOM, INC.
    Inventors: Hong-Kui Yang, Jian Gu, Tingting Miao, Shu Wang, Zhigang Tian
  • Publication number: 20090103507
    Abstract: A method determines whether information corresponding to one of a number of carriers indicates the one carrier is loaded or unloaded, wherein the carriers are used for transmission of a MAC flow by the access terminal over a reverse link. Responsively, the transmission resource allocation corresponding to the MAC flow for the one carrier is adjusted based on information corresponding to carrier loading for each of the carriers and on information corresponding to reverse link pilot power for each of the carriers. An access terminal includes a function that determines whether the one is loaded or unloaded. Responsively, the function adjusts transmission resource allocation for the MAC flow for the one carrier based on information of carrier loading for each of the carriers and on information of reverse link pilot power for each of the carriers.
    Type: Application
    Filed: May 3, 2006
    Publication date: April 23, 2009
    Inventors: Jian Gu, Yuan-Joshua Zhu
  • Patent number: 7477658
    Abstract: Telecommunications system and method supporting a plurality of data rates are disclosed. The system includes an adjusting device that adjusts a target signal-to-interference ratio of a closed-loop power control to match a data rate applied in transmission of a dedicated channel. The system provides data-rate-sensitive power control thus to increase the accuracy of the power control and to improve the performance of the telecommunications system.
    Type: Grant
    Filed: February 26, 2004
    Date of Patent: January 13, 2009
    Assignee: Nokia Corporation
    Inventor: Jian Gu
  • Publication number: 20080209302
    Abstract: A control channel encoder, e.g., in a UMB system, uses a channel structure that can efficiently transmit more information bits, yet achieve sufficient detection and false alarm performance. A control channel encoder can use a fixed encoder packet size, tail-biting convolutional coding, and Cyclical Redundancy Check (CRC). A control channel decoder can use a circular Viterbi decoding algorithm and a circular trellis check.
    Type: Application
    Filed: May 9, 2008
    Publication date: August 28, 2008
    Applicant: VIA TELECOM INC.
    Inventors: Hong Kui Yang, Jian Gu
  • Publication number: 20080184088
    Abstract: A control channel encoder, e.g., in a UMB system, uses a channel structure that can efficiently transmit more information bits, yet achieve sufficient detection and false alarm performance. A control channel encoder can use a fixed encoder packet size, tail-biting convolutional coding, and Cyclical Redundancy Check (CRC). A control channel decoder can use Viterbi Decoding and a circular trellis check.
    Type: Application
    Filed: January 24, 2008
    Publication date: July 31, 2008
    Applicant: VIA TELECOM, INC.
    Inventors: Hong Kui Yang, Jian Gu, Pengcheng Su
  • Patent number: 7400674
    Abstract: A method for controlling transmission of sets of data comprises receiving information relating to at least a part of a first data set. This information may comprise the at least part of the first set of data or an indication of receipt of the at least part of the first set of data. The number of times that at least a part of the first set of data has been transmitted is determined. At least one threshold for a quantity indicative of transmission conditions is updated based on the determined number of times, said at least one threshold being for determining a transmission rate for at least a part of a set of data. Determining a transmission rate for at least a part of a second set of data is also discussed.
    Type: Grant
    Filed: May 24, 2004
    Date of Patent: July 15, 2008
    Assignee: Nokia Corporation
    Inventor: Jian Gu
  • Publication number: 20080134002
    Abstract: A control channel encoder, e.g., in a UMB system, uses a channel structure that can efficiently transmit more information bits, yet achieve sufficient detection and false alarm performance. The control channel encoder uses tail-biting convolutional coding and Cyclical Redundancy Check (CRC).
    Type: Application
    Filed: November 27, 2007
    Publication date: June 5, 2008
    Applicant: VIA TELECOM, INC.
    Inventors: Hong kui Yang, Jian Gu, Pengcheng Su
  • Publication number: 20080063105
    Abstract: A preamble channel encoder, e.g., in a UHDR-DO system, uses a channel structure that can efficiently transmit more information bits, yet achieve sufficient detection and false alarm performance. The preamble channel encoder uses tail-biting convolutional coding and Cyclical Redundancy Check (CRC). The preamble channel structure can be used to encode, e.g., rate indicator bits, while a MAC identifier encoder, e.g., a Reed-Solomon encoder, is used to encode MAC identifier bits. The encoded rate indictor and MAC identifier bits can then be mapped to the appropriate tones in an OFDM encoding scheme.
    Type: Application
    Filed: August 23, 2007
    Publication date: March 13, 2008
    Applicant: VIA TELECOM, INC.
    Inventors: Jian Gu, Hongkui Yang, Linlin He, Pengcheng Su
  • Publication number: 20080025428
    Abstract: A channel structure that can efficiently transmit more data control bits, e.g., required by future wireless communication systems, yet achieve sufficient detection and false alarm performance uses tail-biting convolutional coding and Cyclical Redundancy Check (CRC). In certain implementations, symbol repetition, interleaving and/or scrambling can also be included. Also, depending on the implementation, modulation schemes such as Bi-Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK) or Quadrature Amplitude Modulation (QAM) can be used in conjunction with the other coding techniques.
    Type: Application
    Filed: July 26, 2007
    Publication date: January 31, 2008
    Applicant: VIA TELECOM CO., LTD.
    Inventors: Jian Gu, Hongkui Yang, Linlin He
  • Publication number: 20070292506
    Abstract: The present invention relates broadly to the field of sustained release formulations. More specifically, the invention describes compositions and methods relating to formulating proteins and/or peptides with purified gallic acid esters. In one example, the gallic acid ester is PentaGalloylGlucose (PGG) and in anther example the gallic acid ester is epigallocatechin gallate (EGCG).
    Type: Application
    Filed: August 30, 2007
    Publication date: December 20, 2007
    Inventors: Merrill Goldenberg, Jian Gu
  • Publication number: 20070064692
    Abstract: An approach is provided for addressing in a multiple carrier communication system. In one embodiment, a group index is assigned to a group of terminals of a communication network. The group index permits sharing of addressing indices supported by the communication network for transmission of data to the group of terminals. In another embodiment, a plurality of terminals is classified using preamble indices corresponding to the terminals into one or more classes. A multi-user packet, which utilizes the preamble indices to activate only a class of the terminals for processing the multi-user packet, is generated.
    Type: Application
    Filed: August 22, 2006
    Publication date: March 22, 2007
    Inventors: Zhouyue Pi, Zhigang Rong, Lin Ma, Fei Zhou, Mark Cheng, Jian Gu, Zhu Yuan
  • Patent number: 7177372
    Abstract: The present invention is a method and apparatus to remove the adverse effects due to the imbalance between in-phase (I) and quadrature (Q) channels for I-Q demodulators and modulators in multi-carrier systems. A first balancer generates a first balancing signal from a first signal of a first index corresponding to a first frequency. A first combiner combines the first balancing signal and a second signal of a second index corresponding to a second frequency. The second frequency is symmetrical to the first frequency with respect to a center frequency in a multi-carrier composite signal. The first combiner generates a first balanced signal corresponding to the second frequency.
    Type: Grant
    Filed: August 2, 2001
    Date of Patent: February 13, 2007
    Inventor: Jian Gu
  • Publication number: 20060282740
    Abstract: A method includes generating a plurality of ACK channels, spreading each of the plurality of ACK channels with a separate one of a plurality of Walsh cover codes, combining each of the plurality of ACK channels, and applying a Walsh cover code to the combined plurality of ACK channels.
    Type: Application
    Filed: May 4, 2006
    Publication date: December 14, 2006
    Inventors: Jian Gu, Yuan-Joshua Zhu
  • Publication number: 20060079264
    Abstract: A faster power control method especially of use in case of a UE device communicating with a SAP (e.g. a Node B) of a UTRAN via E-DCH, where instead of the SAP (e.g. a Node B) receiving from the serving RNC a new SIR target to use because of changing channel conditions in what is called outer loop power control, the SAP instead receives a BLER target or a target value for some other indicator of channel quality (such as a new-data indicator value of EUPA) to use as a guide for determining, by itself, an appropriate SIR target.
    Type: Application
    Filed: November 12, 2004
    Publication date: April 13, 2006
    Inventors: Jian Gu, Vinh Phan, Ramin Baghaie, Karri Ranta-Aho
  • Publication number: 20060034226
    Abstract: A radio resource control in an HSUPA system is provided. The control procedure includes: communicating data blocks between user equipment and a network infrastructure over a physical High Speed Uplink Packet Access channel; communicating block acknowledgement messages between the user equipment and the network infrastructure, each block acknowledgement message indicating whether or not a data block was received successfully; and controlling transmission power of the physical HSUPA channel on the basis of at least one block acknowledgement message.
    Type: Application
    Filed: October 18, 2004
    Publication date: February 16, 2006
    Inventors: Jian Gu, Xiangguang Che, Karri Ranta-Aho, Juho Pirskanen, Esa Malkamaki
  • Publication number: 20050288053
    Abstract: At least two transceivers of the radio system communicate using a packet switched connection over a radio interface. The quality of at least one packet having failure in reception is estimated and the transmission power of a retransmission is controlled according to the quality of the at least one packet having failure in reception. A receiver transmits a request to retransmit at least one packet having failure in reception during communication. A transmitter retransmits at least one packet requested as a response to the request using the controlled power.
    Type: Application
    Filed: August 30, 2004
    Publication date: December 29, 2005
    Inventor: Jian Gu
  • Publication number: 20050286533
    Abstract: A method of controlling packet scheduling in a packet radio system, a packet radio system and a base station. The packet radio system is configured to transmit data packets to more than one terminal of the packet radio system, determine reference values of the SAW channels with the highest priorities on the basis of maximum supportable data rates of the SAW channels of all the terminals, prioritize SAW channels having higher reference values over SAW channels having lower reference values, prioritize SAW channels having higher values obtained by subtracting a carrier-to-interference threshold value of a maximum supportable data rate from a carrier-to interference ratio over SAW channels having corresponding lower values when two or more SAW channels have the same reference values, and execute packet scheduling on the basis of the prioritizing.
    Type: Application
    Filed: February 24, 2005
    Publication date: December 29, 2005
    Inventor: Jian Gu