Patents by Inventor Yongbin Wei

Yongbin Wei 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).

  • METHOD AND APPARATUS FOR UNIFIED CHANNEL ESTIMATION FOR WIRELESS COMMUNICATION
    Publication number: 20110194430
    Abstract: Certain aspects of the disclosure propose a unified channel estimation algorithm that combines two or more channel estimation algorithms in a single piece of hardware or software. The proposed unified channel estimation may dynamically switch, based on one or more metrics, between different modes of operation that utilize different channel estimation algorithms.
    Type: Application
    Filed: December 15, 2010
    Publication date: August 11, 2011
    Applicant: QUALCOMM INCORPORATED
    Inventors: Taesang Yoo, Tao Luo, Yongbin Wei, Hanfang Pan, Michael A. Howard
  • METHODS AND APPARATUS FOR INTERFERENCE DECREASE/CANCELLATION ON DOWNLINK ACQUISITION SIGNALS
    Publication number: 20110195684
    Abstract: A method, an apparatus, and a computer program product for receiving a signal including components from a plurality of cells, estimating a channel from the received signal using one or more channel estimation schemes, removing a component signal using the estimated channel from the received signal to generate a processed signal and detecting a residual signal in the processed signal.
    Type: Application
    Filed: August 16, 2010
    Publication date: August 11, 2011
    Applicant: QUALCOMM INCORPORATED
    Inventors: Xiaoxia Zhang, Durga Prasad Malladi, Yongbin Wei, Tao Luo, Hao Xu, Aleksandar Damnjanovic
  • METHODS AND APPARATUS FOR SUBFRAME INTERLACING IN HETEROGENEOUS NETWORKS
    Publication number: 20110188481
    Abstract: Methods and apparatus for providing wireless communications using subframe partitioning are disclosed. Two or more base stations may be allocated subframes in a radio frame. All or part of the subframe allocation may be provided to the associated user equipment (UEs), which may use it to determine signal metrics during assigned subframes for an associated base station.
    Type: Application
    Filed: September 14, 2010
    Publication date: August 4, 2011
    Applicant: QUALCOMM INCORPORATED
    Inventors: Aleksandar Damnjanovic, Yongbin Wei, Peter A. Barany
  • SYSTEMS AND METHODS FOR SENDING POWER CONTROL INFORMATION
    Publication number: 20110188460
    Abstract: Systems and methodologies are described that facilitate sending a power control command in a wireless communication environment. A base station can send a power control command to a UE through resource elements reserved for at least one Physical Downlink Control Channel (PDCCH). Thus, the power control command can be punctured into a control channel element (CCE) reserved for the at least one PDCCH. Further, the base station can convey an indicator that specifies the resource elements reserved for the at least one PDCCH used for sending the power control command to the UE. Moreover, the base station can use a structure similar to a conventional (e.g., Release 8, . . . ) PHICH structure for sending the power control command using the resource elements reserved for the at least one PDCCH. For example, the power control command can be spread using one or more Walsh codes assigned to the UE.
    Type: Application
    Filed: June 14, 2010
    Publication date: August 4, 2011
    Applicant: QUALCOMM Incorporated
    Inventors: Durga Prasad Malladi, Yongbin Wei, Tao Luo
  • CONTINUOUS CDM/FDM STRUCTURE FOR LTE UPLINK DATA
    Publication number: 20110170504
    Abstract: A method, an apparatus, and a computer program product for wireless communication are provided in which information regarding use of a CDM and FDM structure for multiplexing data on a data channel for uplink for at least one subframe is determined. In addition, the data is multiplexed using the CDM/FDM structure for the at least one subframe based on the determined information.
    Type: Application
    Filed: January 11, 2011
    Publication date: July 14, 2011
    Applicant: QUALCOMM INCORPORATED
    Inventors: Hao Xu, Durga Prasad Malladi, Yongbin Wei
  • METHOD AND APPARATUS FOR DETECTING TRANSMISSION SIGNALS
    Publication number: 20110170440
    Abstract: Certain aspects of the present disclosure provide methods, apparatus, and computer-program products for the detection of potentially interfering user equipment (UE) in the proximity of a detecting entity. The detecting entity may be a base station or a UE. The detecting entity may take one or more actions in response to the detection in an effort to mitigate interference.
    Type: Application
    Filed: January 10, 2011
    Publication date: July 14, 2011
    Applicant: QUALCOMM INCORPORATED
    Inventors: Peter Gaal, Ravi Palanki, Valentin Alexandru Gheorghiu, Yongbin Wei
  • Interaction Between Accumulative Power Control And Minimum/Maximum Transmit Power In LTE Systems
    Publication number: 20110159914
    Abstract: Methods and apparatus in a wireless communication system are described for receiving and processing transmit power control commands, where, for example, the response to the transmit power control commands is conditionally decoupled from at least one of a transmit bandwidth parameter, a transport format parameter and a power stepsize limit. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the disclosed subject matter. Therefore, it is to be understood that it should not be used to interpret or limit the scope or the meaning of the claims.
    Type: Application
    Filed: December 22, 2010
    Publication date: June 30, 2011
    Applicant: QUALCOMM Incorporated
    Inventors: Wanshi Chen, Peter Gaal, Juan Montojo, Taesang Yoo, Xiliang Luo, Tao Luo, Yongbin Wei, Naga Bhushan
  • MECHANISMS FOR INFORMATION EXCHANGE ACROSS CELLS TO FACILITATE RECEPTION IN A HETEROGENEOUS NETWORK
    Publication number: 20110141971
    Abstract: A method, an apparatus, and a computer program product for wireless communication are provided in which a signal including a signal from a UE is received. System information of a neighboring eNodeB is obtained. The received signal is processed based on the system information in order to enhance the received signal with respect to the signal from the UE.
    Type: Application
    Filed: June 15, 2010
    Publication date: June 16, 2011
    Applicant: QUALCOMM Incorporated
    Inventors: Xiaoxia Zhang, Durga Prasad Malladi, Yongbin Wei, Tao Luo, Hao Xu
  • METHOD AND SYSTEMS FOR PARALLEL CHANNEL ESTIMATION AND INTERFERENCE CANCELLATION
    Publication number: 20110143672
    Abstract: Certain aspects of the disclosure propose parallel channel estimation and interference cancellation in a wireless communications system. For each common reference signal tone offset, interference cancellation and channel estimation may be performed independently. The proposed channel estimation method may increase performance of a system.
    Type: Application
    Filed: December 13, 2010
    Publication date: June 16, 2011
    Applicant: QUALCOMM INCORPORATED
    Inventors: Taesang Yoo, Tao Luo, Yongbin Wei, Hanfang Pan, Michael A. Howard
  • SYSTEMS, APPARATUS AND METHODS FOR PHYSICAL RANDOM ACCESS CHANNEL PROCESSING
    Publication number: 20110143762
    Abstract: Systems and methods for processing a physical random access channel are provided. In some embodiments, a method can include: receiving a signal indicative of a strong user and a desired user on a physical random access channel; performing at least one of a single segment frequency domain detection or a multi-segment frequency domain detection on the signal indicative of a strong user and a desired user; generating a residual signal by cancelling out the signal indicative of a strong user; and obtaining a message transmitted by a user equipment by performing at least one of the single segment frequency domain detection or multi-segment frequency domain detection on the residual signal.
    Type: Application
    Filed: June 15, 2010
    Publication date: June 16, 2011
    Applicant: QUALCOMM Incorporated
    Inventors: Xiaoxia Zhang, Durga Prasad Malladi, Yongbin Wei, Hao Xu, Tao Luo
  • METHOD AND SYSTEM FOR EFFICIENT CHANNEL ESTIMATION
    Publication number: 20110129009
    Abstract: Aspects of the present disclosure describe an efficient channel estimation algorithm for high-speed processing of dedicated reference signals. The channel estimation algorithm may utilize one or more compressed interpolation matrices. The compressed interpolation matrices may be selected based on the Doppler value and signal to noise ratio (SNR) of the channel.
    Type: Application
    Filed: November 29, 2010
    Publication date: June 2, 2011
    Applicant: QUALCOMM Incorporated
    Inventors: Dung Ngoc Doan, Tao Luo, Taesang Yoo, Yongbin Wei, Xiaoxia Zhang
  • APP (A PRIORI PROBABILITY) STORAGE DESIGN FOR LTE TURBO DECODER WITH QUADRATIC PERMUTATION POLYNOMIAL INTERLEAVER
    Publication number: 20110107019
    Abstract: Systems and methodologies are described that facilitate ensuring contention and/or collision free memory within a turbo decoder. A Posteriori Probability (APP) Random Access Memory (RAM) can be segmented or partitioned into two or more files with an interleaving sub-group within each file. This enables parallel operation in a turbo decoder and allows a turbo decoder to access multiple files simultaneously without memory access contention.
    Type: Application
    Filed: October 29, 2009
    Publication date: May 5, 2011
    Applicant: QUALCOMM INCORPORATED
    Inventors: Hanfang Pan, Yongbin Wei
  • Method and system for code combining at an outer decoder on a communication system
    Patent number: 7929578
    Abstract: An outer encoder and an inner encoder encode subsets of information to be transmitted, to improve protection by adding redundancy. The redundancy permits decoding of the information from less than a complete encoded block of information. The use of a combiner at an outer decoder enables better outer decoding of symbols.
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: April 19, 2011
    Inventors: Yongbin Wei, Tao Chen, Edward G. Tiedemann, Jr.
  • RECURSIVE REALIZATION OF POLYNOMIAL PERMUTATION INTERLEAVING
    Publication number: 20110075615
    Abstract: Systems and methodologies are described that facilitate automatically generating interleaved addresses during turbo decoding. An efficient recursive technique can be employed in which layers of nested loops enable the computation of a polynomial and a modular function given interleaved parameters “a” and “b” from a look up table. With the recursive technique, interleaved addresses can be generated, one interleaved address per clock cycle which can maintain turbo decoding performance.
    Type: Application
    Filed: September 30, 2009
    Publication date: March 31, 2011
    Applicant: QUALCOMM INCORPORATED
    Inventors: Hanfang Pan, Michael A. Howard, Yongbin Wei, Michael A. Kongelf
  • CROSS-SUBFRAME CONTROL CHANNEL DESIGN
    Publication number: 20110064037
    Abstract: Certain aspects of the disclosure relate to performing cross-subframe control channel signaling for wireless communications. A method may be provided for signaling downlink control channel resource allocations and/or physical control format indications in a subframe different from the subframe in which a downlink data transmission may be performed. In one aspect, the method may include transmitting PDCCH and/or PCFICH during a first subframe to allocate resources for a PDSCH during a second subframe and transmitting the PDSCH during the second subframe.
    Type: Application
    Filed: September 10, 2010
    Publication date: March 17, 2011
    Applicant: QUALCOMM INCORPORATED
    Inventors: Yongbin Wei, Durga Prasad Malladi, Tao Luo
  • SYSTEMS, APPARATUS AND METHODS FOR COMMUNICATING DOWNLINK INFORMATION
    Publication number: 20110053603
    Abstract: Systems and methods facilitating communication of downlink information are provided. In one embodiment, a method can include receiving a signal indicative of a base station enabling or disabling a function, wherein the function is configured to transmit information carried in control channels using selected downlink information; receiving the selected downlink information at one or more locations; and determining a resource allocation of at least one of paging information or system information or unicast data information based, at least, on the selected downlink information. The determining can be performed without decoding control channels corresponding to the selected downlink information in response to receiving a signal indicative of the function being enabled.
    Type: Application
    Filed: June 2, 2010
    Publication date: March 3, 2011
    Applicant: QUALCOMM INCORPORATED
    Inventors: Tao Luo, Yongbin Wei, Durga Prasad Malladi
  • MAXIMUM POWER SPECTRAL DENSITY REPORTING IN RESPONSE TO OVERLOAD INDICATIONS
    Publication number: 20110044247
    Abstract: Certain aspects of the present disclosure propose methods for reporting information such as a maximum power spectral density to a serving access point after receiving overload indicators from one or more neighboring access points. The reported information may be multiplexed with other information (e.g., Channel Quality Indicator (CQI), Precoding Matrix Index (PMI), rank indication (RI) or acknowledgement (ACK)/negative acknowledgment (NACK) message for downlink data channel) before transmission to the serving access point. In addition, the information may be transmitted in a medium access control (MAC) packet data unit (PDU).
    Type: Application
    Filed: August 16, 2010
    Publication date: February 24, 2011
    Applicant: QUALCOMM INCORPORATED
    Inventors: Tao Luo, Aleksandar Damnjanovic, Durga Prasad Malladi, Yongbin Wei, Peter A. Barany
  • SYSTEM AND METHOD FOR OVERLOAD INDICATION
    Publication number: 20110039595
    Abstract: Devices and methods are provided for transmit power control in a wireless communication environment. In one embodiment, the method may involve measuring an interference amount over at least one of a sub-band and a full bandwidth. The method may involve assigning a level to the measured interference amount, the level comprising one of an overloaded level and an underloaded level. The method may involve encoding the level as an overload indicator, the overload indicator being conditioned on the sub-band such that the overload indicator includes enhanced layer symbols regarding the level of the measured interference amount. The method may involve conveying the overload indicator to at least one mobile device.
    Type: Application
    Filed: July 29, 2010
    Publication date: February 17, 2011
    Applicant: QUALCOMM INCORPORATED
    Inventors: Tao Luo, Yongbin Wei, Durga Prasad Malladi
  • ROBUST DECODING OF CoMP TRANSMISSIONS
    Publication number: 20110038330
    Abstract: Techniques for transmitting data and resource signals (RS) are provided. According to certain aspects, an access point may determine RS resource locations related to one or more access points in a CoMP set transmitting a common reference signal (CRS), map data transmissions initially over resources other than those related to the RS resource locations, and map remaining data transmissions over resources related to the RS resource locations. According to certain aspects, a wireless device may receive a signal from access points in a coordinated multiple point (CoMP) communication set comprising a common reference signal (CRS) superimposed over data, determine CRS locations in the signal that correspond to the CRS, and decode data from the signal based at least in part on the determined CRS locations.
    Type: Application
    Filed: July 29, 2010
    Publication date: February 17, 2011
    Applicant: QUALCOMM INCORPORATED
    Inventors: Tao Luo, Durga Prasad Malladi, Juan Montojo, Ke Liu, Xiaoxia Zhang, Yongbin Wei
  • EFFICIENT CONTROL CHANNEL DECODING IN CoMP COMMUNICATIONS
    Publication number: 20110038329
    Abstract: Certain embodiments of the present disclosure propose two efficient designs for a control channel in a Coordinated Multi-Point (CoMP) system. The proposed designs enable a user equipment (UE) to transmit acknowledgement (ACK) and negative acknowledgement (NACK) signals to one or more access points (APs) upon receiving transmissions from them.
    Type: Application
    Filed: July 29, 2010
    Publication date: February 17, 2011
    Applicant: QUALCOMM INCORPORATED
    Inventors: Tao Luo, Durga Prasad Malladi, Xiaoxia Zhang, Yongbin Wei, Juan Montojo, Ke Liu