Patents by Inventor Haiyan Luo

Haiyan Luo 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: 20140241293
    Abstract: The present invention provides a method and a base station for coordinating physical downlink control channel interference, where, base stations of neighboring cells exchange PDCCH state information or PDCCH performance information, so that a victim cell can identify an aggressive cell according to the above information, and notify the aggressive cell of taking a measure to reduce effect of interference to a PDCCH of the victim cell. Thereby the aggressive cell takes the measure to achieve PDCCH interference coordination, and to reduce the effect of the interference from the aggressive cell to the PDCCH of the victim cell. Or the aggressive cell actively finds that it is a strong interference source to a PDCCH of a certain victim cell, and, accordingly, takes a measure to reduce effect of interference to the PDCCH of the victim cell actively.
    Type: Application
    Filed: May 7, 2014
    Publication date: August 28, 2014
    Applicant: Huawei Technologies Co., Ltd.
    Inventors: Haiyan LUO, Tianle DENG, Binsong TANG, Yanzan SUN
  • Publication number: 20140098746
    Abstract: The present invention provides a communication method. The method includes: determining, by a first base station serving a first cell, a position of an almost blank subframe and transmission power of the almost blank subframe according to obtained adjustment information about a second cell of a second base station; and determining a frame structure for the second cell according to the adjustment information, the position of the almost blank subframe, and the transmission power of the almost blank subframe. The present invention further provides a base station and a terminal device. With the present invention, transmission power of each almost blank subframe may be adaptively adjusted according to the adjustment information about the second cell, so that interference between the first cell and the second cell is reduced.
    Type: Application
    Filed: December 13, 2013
    Publication date: April 10, 2014
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Haiyan LUO, Tianle Deng, Binsong Tang, Li Yang
  • Publication number: 20140075497
    Abstract: A policy is established comprising a condition having a multiphase attribute of a multiphase transaction. Phase specific policies are established for each phase in which the multiphase attribute may become known. The multiphase transaction is evaluated according to the phase specific policies at each phase of the multiphase transaction in which the multiphase attribute may become known until a policy decision of the policy is determined.
    Type: Application
    Filed: September 13, 2012
    Publication date: March 13, 2014
    Applicant: CISCO TECHNOLOGY, INC.
    Inventors: Haiyan Luo, Hari Shankar, Daryl Odnert, Niranjan Koduri
  • Publication number: 20130310041
    Abstract: The present invention provides a handover method, a base station and a system. The handoff method comprises: a low-power base station monitors an uplink signal which is sent by a user equipment served by a neighbor base station, and obtains signal measurement information of the uplink signal and characteristic information of the uplink signal; the low-power base station sends the signal measurement information of the uplink signal and the characteristic information of the uplink signal to at least one macro base station which covers the low-power base station, so that the macro base station, according to the signal measurement information, determines whether the user equipment to which the characteristic information corresponds is unloaded to the low-power base station.
    Type: Application
    Filed: July 26, 2013
    Publication date: November 21, 2013
    Applicant: Huawei Technologies Co., Ltd.
    Inventors: Tianle Deng, Li Yang, Haiyan Luo
  • Publication number: 20130265992
    Abstract: The present invention provides a method, an apparatus, and a system for synchronization between base stations. The method for synchronization between base stations includes: A first base station receives synchronization information sent by a user equipment, where the first base station is a serving base station of the user equipment; and the first base station adjusts a downlink sending time point and an uplink receiving time point of the first base station according to the synchronization information, so as to keep consistency between the downlink sending time point of the first base station and a downlink sending time point of a second base station that serves as a synchronization time reference and keep consistency between the uplink receiving time point of the first base station and an uplink receiving time point of the second base station.
    Type: Application
    Filed: June 4, 2013
    Publication date: October 10, 2013
    Inventors: Tianle DENG, Binsong Tang, Haiyan Luo
  • Patent number: 8325603
    Abstract: A method and apparatus for dequeuing data are disclosed. The method includes: obtaining storage addresses of packets in each queue, and dequeuing, by multiple dequeue processing engines, the packets in each queue in parallel according to the storage addresses of the packets in each queue. Multiple dequeue processing engines dequeue the packets in multiple queues in parallel, and thus the data dequeue efficiency and performance are improved.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: December 4, 2012
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Yunfeng Bian, Haiyan Luo, Bai Cheng, Youjie Duan, Hui Lu
  • Patent number: 8291167
    Abstract: A system and a method for writing cache data and a system and a method for reading cache data are disclosed. The system for writing the cache data includes: an on-chip memory device, configured to cache received write requests and write data associated with the write requests and sort the write requests; a request judging device, configured to extract the sorted write requests and the write data associated with the write requests according to write time sequence restriction information of an off-chip memory device; and an off-chip memory device controller, configured to write the write data extracted by the request judging device in the off-chip memory device.
    Type: Grant
    Filed: September 8, 2010
    Date of Patent: October 16, 2012
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Qin Zheng, Haiyan Luo, Hui Lu, Junliang Lin, Yunfeng Bian
  • Publication number: 20110002345
    Abstract: A method and apparatus for dequeuing data are disclosed. The method includes: obtaining storage addresses of packets in each queue, and dequeuing, by multiple dequeue processing engines, the packets in each queue in parallel according to the storage addresses of the packets in each queue. Multiple dequeue processing engines dequeue the packets in multiple queues in parallel, and thus the data dequeue efficiency and performance are improved.
    Type: Application
    Filed: July 1, 2010
    Publication date: January 6, 2011
    Inventors: Yunfeng Bian, Haiyan Luo, Bai Cheng, Youjie Duan, Hui Lu
  • Publication number: 20100332743
    Abstract: A system and a method for writing cache data and a system and a method for reading cache data are disclosed. The system for writing the cache data includes: an on-chip memory device, configured to cache received write requests and write data associated with the write requests and sort the write requests; a request judging device, configured to extract the sorted write requests and the write data associated with the write requests according to write time sequence restriction information of an off-chip memory device; and an off-chip memory device controller, configured to write the write data extracted by the request judging device in the off-chip memory device. With a combination of the on-chip and off-chip memory devices, a large-capacity data storage space and a high-speed read and write efficiency is achieved.
    Type: Application
    Filed: September 8, 2010
    Publication date: December 30, 2010
    Applicant: Huawei Technologies Co., Ltd.
    Inventors: Qin Zheng, Haiyan Luo, Hui Lu, Junliang Lin, Yunfeng Bian
  • Publication number: 20100220589
    Abstract: A method, an apparatus, and a system for processing buffered data are disclosed. The method includes: packing data packets in a same queue; splitting the packed data packet into multiple data cells according to a predetermined cell size; and storing the split data cells in multiple memories. The preceding method, apparatus, and system improve the read and write efficiency of the memories and improve the balance of the read and write bandwidths among multiple memories, thus improving the system performance.
    Type: Application
    Filed: May 13, 2010
    Publication date: September 2, 2010
    Inventors: Qin Zheng, Haiyan Luo, Yunfeng Bian, Hui Lu