Patents by Inventor Peiying Zhu

Peiying Zhu 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: 10075939
    Abstract: A method and system for allocating shareable wireless transmission resources. A resource pool is established. The resource pool is divided into a plurality of physical layer allocation units usable for wirelessly transmitting control information and traffic data. The allocation units are assigned at the media access control layer for the wireless transmission of the control information and traffic data. The system and method of the present invention also allows mobile stations to be dynamically grouped into multicast groupings to reduce system overhead resource requirements.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: September 11, 2018
    Assignee: Apple Inc.
    Inventors: Hang Zhang, Jianglei Ma, Ming Jia, Mo-Han Fong, Peiying Zhu, Wen Tong
  • Patent number: 10075314
    Abstract: A method and apparatus for improving channel estimation within an OFDM communication system. Channel estimation in OFDM is usually performed with the aid of pilot symbols. The pilot symbols are typically spaced in time and frequency. The set of frequencies and times at which pilot symbols are inserted is referred to as a pilot pattern. In some cases, the pilot pattern is a diagonal-shaped lattice, either regular or irregular. The method first interpolates in the direction of larger coherence (time or frequency). Using these measurements, the density of pilot symbols in the direction of faster change will be increased thereby improving channel estimation without increasing overhead. As such, the results of the first interpolating step can then be used to assist the interpolation in the dimension of smaller coherence (time or frequency).
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: September 11, 2018
    Assignee: Apple Inc.
    Inventors: Jianglei Ma, Ming Jia, Wen Tong, Peiying Zhu, Hang Zhang, Hua Xu, Dongsheng Yu
  • Publication number: 20180255564
    Abstract: A system and method for scheduling cooperative uplink transmissions in a virtual multiple input multiple output (MIMO) wireless communication environment are provided. More specifically, both random and channel aware orthogonal scheduling techniques for identifying a sub-set of N mobile terminals to provide cooperative uplink transmissions for each transmit time interval are provided.
    Type: Application
    Filed: May 3, 2018
    Publication date: September 6, 2018
    Inventors: Jianming Wu, Ming Jia, Wen Tong, Peiying Zhu
  • Publication number: 20180242304
    Abstract: Systems and methods for UE state machine to support multiple services or air interfaces are described. The UE may have one configuration of the state machine for multiple services or air interfaces. The UE may have multiple state machines for different services or air interfaces that work independently. The UE may have multiple state machines for different services or air interfaces that work collaboratively. The UE may have a state machine that uses a state machine configuration selected out of a plurality of state machine configurations according to the services used. The configuration of this state machine may be adapted to services. At initialization, the configuration of this state machine may be default or be determined according to the services the UE may use. During operation, the configuration of this state machine may change according to the change in services for the UE.
    Type: Application
    Filed: April 16, 2018
    Publication date: August 23, 2018
    Inventors: Lu Rong, Jianglei Ma, Peiying Zhu, Wen Tong, Kelvin Kar Kin Au
  • Publication number: 20180242238
    Abstract: A method of transmitting includes categorizing a transmission between the first device and a second device as one of a plurality of transmission types, and selecting an air interface from a plurality of air interface candidates in accordance with the transmission as categorized. The method also includes sending the transmission to the second device using the selected air interface.
    Type: Application
    Filed: April 23, 2018
    Publication date: August 23, 2018
    Inventors: Jianglei Ma, Peiying Zhu, Ming Jia, Wen Tong
  • Publication number: 20180242237
    Abstract: A method of transmitting includes categorizing a transmission between the first device and a second device as one of a plurality of transmission types, and selecting an air interface from a plurality of air interface candidates in accordance with the transmission as categorized. The method also includes sending the transmission to the second device using the selected air interface.
    Type: Application
    Filed: April 23, 2018
    Publication date: August 23, 2018
    Applicant: Huawei Technologies Co., Ltd.
    Inventors: Jianglei Ma, Peiying Zhu, Ming Jia, Wen Tong
  • Publication number: 20180242310
    Abstract: A grant-free transmission mode may be used to communicate small traffic transmissions to reduce overhead and latency. The grant-free transmission mode may be used in downlink and uplink data channels of a wireless network. In the downlink channel, a base station transmits packets to a group of UEs in a search space without communicating any transmission code assignments to the UEs. The UEs receive the downlink packets using blind detection. In the uplink channel, UEs transmit packets in an access space using assigned access codes which are either independently derived by the UEs or otherwise communicated by the base station using a slow-signaling channel. Hence, the grant-free transmission mode allows mobile devices to make small traffic transmissions without waiting for uplink grant requests.
    Type: Application
    Filed: April 25, 2018
    Publication date: August 23, 2018
    Inventors: Kelvin Kar Kin Au, Jianglei Ma, Hosein Nikopour, Alireza Bayesteh, Petar Djukic, Liqing Zhang, Peiying Zhu
  • Publication number: 20180242236
    Abstract: A method of transmitting includes categorizing a transmission between the first device and a second device as one of a plurality of transmission types, and selecting an air interface from a plurality of air interface candidates in accordance with the transmission as categorized. The method also includes sending the transmission to the second device using the selected air interface.
    Type: Application
    Filed: April 23, 2018
    Publication date: August 23, 2018
    Inventors: Jianglei Ma, Peiying Zhu, Ming Jia, Wen Tong
  • Publication number: 20180242309
    Abstract: A grant-free transmission mode may be used to communicate small traffic transmissions to reduce overhead and latency. The grant-free transmission mode may be used in downlink and uplink data channels of a wireless network. In the downlink channel, a base station transmits packets to a group of UEs in a search space without communicating any transmission code assignments to the UEs. The UEs receive the downlink packets using blind detection. In the uplink channel, UEs transmit packets in an access space using assigned access codes which are either independently derived by the UEs or otherwise communicated by the base station using a slow-signaling channel. Hence, the grant-free transmission mode allows mobile devices to make small traffic transmissions without waiting for uplink grant requests.
    Type: Application
    Filed: April 25, 2018
    Publication date: August 23, 2018
    Inventors: Kelvin Kar Kin Au, Jianglei Ma, Hosein Nikopour, Alireza Bayesteh, Petar Djukic, Liqing Zhang, Peiying Zhu
  • Publication number: 20180242235
    Abstract: A method of transmitting includes categorizing a transmission between the first device and a second device as one of a plurality of transmission types, and selecting an air interface from a plurality of air interface candidates in accordance with the transmission as categorized. The method also includes sending the transmission to the second device using the selected air interface.
    Type: Application
    Filed: April 23, 2018
    Publication date: August 23, 2018
    Inventors: Jianglei Ma, Peiying Zhu, Ming Jia, Wen Tong
  • Patent number: 10044460
    Abstract: In some embodiments of the invention, OFDM symbols are transmitted as a plurality of clusters. A cluster includes a plurality of OFDM sub-carriers in frequency, over a plurality of OFDM symbol durations in time. Each cluster includes data as well as pilot information as a reference signal for channel estimation. In some embodiments, a plurality of clusters collectively occupy the available sub-carrier set in the frequency domain that is used for transmission. In some embodiments of the invention data and/or pilots are spread within each cluster using code division multiplexing (CDM). In some embodiments pilots and data are separated by distributing data on a particular number of the plurality of OFDM symbol durations and pilots on a remainder of the OFDM symbol durations. CDM spreading can be performed in time and/or frequency directions.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: August 7, 2018
    Assignee: Apple Inc.
    Inventors: Jianglei Ma, Ming Jia, Wen Tong, Peiying Zhu, Hua Xu, Hang Zhang, Mo-Han Fong
  • Patent number: 10038485
    Abstract: A codebook C is provided in a MIMO transmitter as well as a MIMO receiver. The codebook C will include M codewords ci, where i is a unique codeword index for each codeword ci. Each codeword defines weighting factors to apply to the MIMO signals, and may correspond to channel matrices or vectors to apply to the MIMO signals prior to transmission from the respective antennas of the MIMO transmitter. The present invention creates codeword subsets Si for each codeword ci of the codebook C. Each codeword subset Si defines L codewords cj, which are selected from all the codewords ci in the codebook C. The codewords cj in a codeword subset Si are the L codewords in the entire codebook that best correlate with the corresponding codeword ci.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: July 31, 2018
    Assignee: Apple Inc.
    Inventors: Wen Tong, Hosein Nikopour, Amir Khandani, Hua Xu, Ming Jia, Peiying Zhu, Dong-sheng Yu
  • Publication number: 20180184415
    Abstract: Systems and methods of performing handover for a user equipment between hyper cells are provided. Handover is done on a per service basis. In some cases, a handover of one service from a source cell to target cell is performed while continuing to use the source cell, the target cell, or another cell for another service. In some cases the handover for a user equipment is from a source cell to a target cell in respect of one of uplink and downlink communications, and the user equipment continues to use the source cell for the other of uplink and downlink communications.
    Type: Application
    Filed: February 26, 2018
    Publication date: June 28, 2018
    Inventors: Lu Rong, Jianglei Ma, Peiying Zhu, Wen Tong, Kelvin Kar Kin Au
  • Publication number: 20180184413
    Abstract: Systems and methods are provided for configuring an air interface between a UE and an access point for one or more radio access network slices or services. The access point may transmit an indication of an option for each of a plurality of air interface building blocks to use for each service/slice. Methods are provided to address a situation where there are multiple options.
    Type: Application
    Filed: February 15, 2018
    Publication date: June 28, 2018
    Inventors: Lu Rong, Jianglei Ma, Peiying Zhu, Wen Tong, Kelvin Kar Kin Au
  • Patent number: 10009209
    Abstract: A method for operating a device includes determining adaptation criteria for a waveform to be transmitted by a transmitting device over a communications channel towards a receiving device, and adjusting a generalized multi-carrier multiplexing parameter (GMMP) of the waveform in accordance with the adaptation criteria. The method also includes transmitting an indicator of the adjusted GMMP to at least one of the transmitting device and the receiving device.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: June 26, 2018
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Peiying Zhu, Jianglei Ma, Ming Jia, Wen Tong
  • Publication number: 20180176900
    Abstract: A method and system of allocating resources in a Radio Access Network that includes associating each of a plurality of services with a slice that is allocated a unique set of network resources and transmitting information in the Radio Access Network for at least one of the services using the slice associated with the at least one service.
    Type: Application
    Filed: February 15, 2018
    Publication date: June 21, 2018
    Inventors: Lu Rong, Jianglei Ma, Peiying Zhu, Wen Tong, Kelvin Kar Kin Au
  • Publication number: 20180167247
    Abstract: A method and apparatus for improving channel estimation within an OFDM communication system. Channel estimation in OFDM is usually performed with the aid of pilot symbols. The pilot symbols are typically spaced in time and frequency. The set of frequencies and times at which pilot symbols are inserted is referred to as a pilot pattern. In some cases, the pilot pattern is a diagonal-shaped lattice, either regular or irregular. The method first interpolates in the direction of larger coherence (time or frequency). Using these measurements, the density of pilot symbols in the direction of faster change will be increased thereby improving channel estimation without increasing overhead. As such, the results of the first interpolating step can then be used to assist the interpolation in the dimension of smaller coherence (time or frequency).
    Type: Application
    Filed: February 8, 2018
    Publication date: June 14, 2018
    Inventors: Jianglei Ma, Ming Jia, Wen Tong, Peiying Zhu, Hang Zhang, Hua Xu, Dongsheng Yu
  • Publication number: 20180167952
    Abstract: A method and system are provided for scheduling data transmission in a Multiple-Input Multiple-Output (MIMO) system. The MIMO system may comprise at least one MIMO transmitter and at least one MIMO receiver. Feedback from one or more receivers may be used by a transmitter to improve quality, capacity, and scheduling in MIMO communication systems. The method may include generating or receiving information pertaining to a MIMO channel metric and information pertaining to a Channel Quality Indicator (CQI) in respect of a transmitted signal; and sending a next transmission to a receiver using a MIMO mode selected in accordance with the information pertaining to the MIMO channel metric, and an adaptive coding and modulation selected in accordance with the information pertaining to the CQI.
    Type: Application
    Filed: January 26, 2018
    Publication date: June 14, 2018
    Inventors: Wen Tong, Ming Jia, Jianming Wu, Dong-Sheng Yu, Peiying Zhu
  • Patent number: 9992792
    Abstract: A system and method for scheduling cooperative uplink transmissions in a virtual multiple input multiple output (MIMO) wireless communication environment are provided. More specifically, both random and channel aware orthogonal scheduling techniques for identifying a sub-set of N mobile terminals to provide cooperative uplink transmissions for each transmit time interval are provided.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: June 5, 2018
    Assignee: BlackBerry Limited
    Inventors: Jianming Wu, Ming Jia, Wen Tong, Peiying Zhu
  • Publication number: 20180152331
    Abstract: The present invention provides a preamble that is inserted into an OFDMA frame and has a common sequence for all the base stations participating in a transmission. The subscriber station performs fine synchronization using the common sequence on the common preamble, and the resulting peaks will provide the locations of candidate base stations. The base station specific search is then performed in the vicinities of those peaks by using base station specific pseudo-noise sequences. With this two stage cell search, the searching window is drastically reduced. The preamble is matched to known values by a respective receiver to decode the signals and permit multiple signals to be transferred from the transmitter to the receiver. The preamble may comprise two parts, Preamble-I and Preamble-2, which may be used in different systems, including multioutput, multi-input (MIMO) systems.
    Type: Application
    Filed: November 27, 2017
    Publication date: May 31, 2018
    Inventors: Jianglei Ma, Hang Zhang, Wen Tong, Ming Jia, Peiying Zhu, Mo-Han Fong