Patents by Inventor Guan Hao

Guan Hao 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: 7583766
    Abstract: A method for reducing interference in a MIMO MultiCode MC-CDMA system is disclosed wherein a BLAST algorithm is implemented over one block of correlation reception data yi and estimation channel values H of the correlation reception data yi to generate a group of temporary decision symbols C. One symbol, Cki, is selected having a maximum SNR value from the temporary decision symbols. The temporary decision symbols, C, other than the selected symbol, Cki, are combined with the estimated channel value H to recover a group of temporary interference signals over the selected symbol, Cki. The interference signals are subtracted from the correlation reception signal vector, yi to generate a corrected reception signal vector yi+1, and a more accurate decision symbol Cki+1 is identified from the corrected reception signal vector yi+1 and original estimation channel values. The foregoing steps are repeated for other symbols C{circumflex over (k)}i.
    Type: Grant
    Filed: June 10, 2005
    Date of Patent: September 1, 2009
    Assignee: Nokia Corporation
    Inventors: Zheng Hongming, Guan Hao
  • Patent number: 7539165
    Abstract: A method and associated equipment for use by a first entity (17) of a radio access network (101), such as a node B, in communicating with a UE (18) so as to control an uplink rate used by the UE (18) in communicating with the first entity (17), the method characterized by: a step in which the first entity (17) transmits to the UE (18) a rate control signal (RA) conveying information regarding the uplink rate. The rate control signal may be used to command the UE (18) to adjust the maximum uplink rate in a range or set of uplink rates; alternatively, it may be used to command the UE (18) to adjust the uplink rate. The rate control signal (RA) may be sent as a response to a rate change request signal (RR) received from the UE (18) by the first entity (17).
    Type: Grant
    Filed: May 24, 2002
    Date of Patent: May 26, 2009
    Inventors: Antti Toskala, Esa Malkamaki, Guan Hao, Mikko J. Rinne, R. Thomas Derryberry
  • Publication number: 20070099733
    Abstract: A detachable table tennis apparatus includes a playing table detachably mounted on a table, and a plurality of positioning devices mounted on the playing table to position the playing table on the table. Thus, the playing table is mounted on tables of different sizes to facilitate a user playing the table tennis. In addition, the fixing block is driven by the two movable plates to press or release the rim of the table so as to lock or unlock the playing table, so that the playing table is mounted on and detached from the table easily and rapidly. Further, the playing table is foldable when not in use to reduce the volume of the table tennis apparatus, thereby facilitating storage and transportation of the table tennis apparatus.
    Type: Application
    Filed: November 1, 2005
    Publication date: May 3, 2007
    Inventor: Guan Hao
  • Publication number: 20060280255
    Abstract: A method for reducing interference in a MIMO MultiCode MC-CDMA system is disclosed wherein a BLAST algorithm is implemented over one block of correlation reception data yi and estimation channel values H of the correlation reception data yi to generate a group of temporary decision symbols C . One symbol, Cki, is selected having a maximum SNR value from the temporary decision symbols. The temporary decision symbols, C, other than the selected symbol, Cki, are combined with the estimated channel value H to recover a group of temporary interference signals over the selected symbol, Cki. The interference signals are subtracted from the correlation reception signal vector, yi to generate a corrected reception signal vector yi+1, and a more accurate decision symbol Cki+1 is identified from the corrected reception signal vector yi+1 and original estimation channel values. The foregoing steps are repeated for other symbols C{circumflex over (k)}i.
    Type: Application
    Filed: June 10, 2005
    Publication date: December 14, 2006
    Applicant: Nokia Corporation
    Inventors: Zheng Hongming, Guan Hao
  • Publication number: 20060083291
    Abstract: Apparatus, and an associated method, for mitigating interference introduced upon data communicated to an MIMO receiver using an MC-CDMA communication system. The dimension of the received data is reduced to a single-representation in a manner in which inter-code and inter-antenna interference is mitigated.
    Type: Application
    Filed: October 15, 2004
    Publication date: April 20, 2006
    Inventors: Zheng Hongming, Anthony Reid, Guan Hao, Teng Yong
  • Patent number: 6917602
    Abstract: A system and method for random access channel (RACH) capture, where user equipment (UE) transmits a series of time-spaced access preambles each having an increasing power level to Node B and terminates access preamble transmission in response to an acquisition indicator (AI) signal returned from Node B and transmits its RACH message part. A collision detection preamble (CDP) is sent immediately after the message or embedded with the message. A collision detection indicator (CDI) signal matching the CDP is transmitted from Node B to the UE identified as having the failed RACH message requesting retransmission of the message. Optionally, the relative retransmission power level is also specified to the UE along with the CDI signal.
    Type: Grant
    Filed: May 29, 2002
    Date of Patent: July 12, 2005
    Assignee: Nokia Corporation
    Inventors: Antti Toskala, Esa Malkamaki, Mikko J. Rinne, Anu Virtanen, Guan Hao, R. Thomas Derryberry
  • Publication number: 20050002366
    Abstract: A wireless communications network has a plurality of terminals and at least one base station which transmits data to each one of said plurality of terminals on a wireless downlink and receives data from each one of said plurality of terminals on a wireless uplink. One of the terminals sends a rate request to the base station. The rate request requests that the data rate on the wireless uplink for the terminal be changed. In response to the rate request, the base station sends a rate grant to the terminal. The rate grant indicates whether or not the terminal may change the data rate on the wireless uplink.
    Type: Application
    Filed: July 16, 2004
    Publication date: January 6, 2005
    Inventors: Antti Toskala, Esa Malkamaki, Guan Hao, Mikko Rinne, R. Derryberry
  • Patent number: 6782269
    Abstract: A wireless communications network has a plurality of terminals and at least one base station which transmits data to each one of said plurality of terminals on a wireless downlink and receives data from each one of said plurality of terminals on a wireless uplink. One of the terminals sends a rate request to the base station. The rate request requests that the data rate on the wireless uplink for the terminal be changed. In response to the rate request, the base station sends a rate grant to the terminal. The rate grant indicates whether or not the terminal may change the data rate on the wireless uplink.
    Type: Grant
    Filed: June 17, 2002
    Date of Patent: August 24, 2004
    Assignee: Nokia Corporation
    Inventors: Antti Toskala, Esa Malkamäki, Guan Hao, Mikko J. Rinne, R. Thomas Derryberry
  • Publication number: 20030232624
    Abstract: A wireless communications network has a plurality of terminals and at least one base station which transmits data to each one of said plurality of terminals on a wireless downlink and receives data from each one of said plurality of terminals on a wireless uplink. One of the terminals sends a rate request to the base station. The rate request requests that the data rate on the wireless uplink for the terminal be changed. In response to the rate request, the base station sends a rate grant to the terminal. The rate grant indicates whether or not the terminal may change the data rate on the wireless uplink.
    Type: Application
    Filed: June 17, 2002
    Publication date: December 18, 2003
    Inventors: Antti Toskala, Esa Malkamaki, Guan Hao, Mikko J. Rinne, R. Thomas Derryberry
  • Publication number: 20030223452
    Abstract: A system and method for random access channel (RACH) capture, where user equipment (UE) transmits a series of time-spaced access preambles each having an increasing power level to Node B and terminates access preamble transmission in response to an acquisition indicator (AI) signal returned from Node B and transmits its RACH message part. A collision detection preamble (CDP) is sent immediately after the message or embedded with the message. A collision detection indicator (CDI) signal matching the CDP is transmitted from Node B to the UE identified as having the failed RACH message requesting retransmission of the message. Optionally, the relative retransmission power level is also specified to the UE along with the CDI signal.
    Type: Application
    Filed: May 29, 2002
    Publication date: December 4, 2003
    Applicant: Nokia Corporation
    Inventors: Antti Toskala, Esa Malkamaki, Mikko J. Rinne, Anu Virtanen, Guan Hao, R. Thomas Derryberry
  • Publication number: 20030219037
    Abstract: A method and associated equipment for use by a first entity (17) of a radio access network (101), such as a node B. in communicating with a UE (18) so as to control an uplink rate used by the UE (18) in communicating with the first entity (17), the method characterized by: a step in which the first entity (17) transmits to the UE (18) a rate control signal (RA) conveying information regarding the uplink rate. The rate control signal may be used to command the UE (18) to adjust the maximum uplink rate in a range or set of uplink rates; alternatively, it may be used to command the UE (18) to adjust the uplink rate. The rate control signal (RA) may be sent as a response to a rate change request signal (RR) received from the UE (18) by the first entity (17).
    Type: Application
    Filed: May 24, 2002
    Publication date: November 27, 2003
    Applicant: Nokia Corporation
    Inventors: Antti Toskala, Esa Malkamaki, Guan Hao, Mikko J. Rinne, R. Thomas Derryberry