Patents by Inventor Shujun Dang

Shujun Dang 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: 20120076065
    Abstract: A method, system and apparatus are provided for modulation and coding mode used by multicast service macro diversity. A message containing relevant information of modulation and coding mode(s) used by an MBS zone is sent in the MBS zone. The MS receives the message, analyzes other messages in the MBS zone according to the relevant information of the modulation and coding mode(s) contained in this message, and receives MBS service data according to the analyzed result upon other messages in the MBS zone. The invention resolves the problem that an entity is required to uniformly manage the coding and modulation mode definition of each cell in the prior art, as well as the problem that the DCD count in the DL-MAP message has to be continuously tracked in the prior art.
    Type: Application
    Filed: December 6, 2011
    Publication date: March 29, 2012
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventor: Shujun DANG
  • Publication number: 20120020324
    Abstract: A method for allocating a time and frequency resource of a resource request indicator (RRI), a method for transmitting an RRI, and a device thereof are provided, which relate to a wireless communication technique and reduce the overhead of the time and frequency resource.
    Type: Application
    Filed: October 10, 2011
    Publication date: January 26, 2012
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Shujun Dang, Sha Ma, Xianghua Wang, Tianle Deng, Xiaobo Chen, Chengyu Wang
  • Patent number: 8102786
    Abstract: The invention discloses a method, a system and apparatus for providing modulation and coding mode used by multicast service macro diversity. In this method, a message containing relevant information of modulation and coding mode(s) used by an MBS zone is sent in the MBS zone at first; the MS receives the message, analyzes other messages in the MBS zone according to the relevant information of the modulation and coding mode(s) contained in this message, and receives MBS service data according to the analyzed result upon other messages in the MBS zone. The invention resolves the problem that an entity is required to uniformly manage the coding and modulation mode definition of each cell in the prior art, as well as the problem that the DCD count in the DL-MAP message has to be continuously tracked in the prior art.
    Type: Grant
    Filed: May 1, 2007
    Date of Patent: January 24, 2012
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Shujun Dang
  • Patent number: 8064397
    Abstract: A method for allocating a time and frequency resource of a resource request indicator (RRI), a method for transmitting an RRI, and a device thereof are provided, which relate to a wireless communication technique and reduce the overhead of the time and frequency resource. The method for allocating a time and frequency resource of an RRI includes: allocating codes for an RRI and other uplink control signaling; and multiplexing the RRI and other uplink control signaling in the same time and frequency resource in a code division manner.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: November 22, 2011
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Shujun Dang, Sha Ma, Xianghua Wang, Tianle Deng, Xiaobo Chen, Chengyu Wang
  • Publication number: 20110194528
    Abstract: A method for allocating a time and frequency resource of a resource request indicator (RRI), a method for transmitting an RRI, and a device thereof are provided, which relate to a wireless communication technique and reduce the overhead of the time and frequency resource. The method for allocating a time and frequency resource of an RRI includes: allocating codes for an RRI and other uplink control signaling; and multiplexing the RRI and other uplink control signaling in the same time and frequency resource in a code division manner.
    Type: Application
    Filed: April 29, 2011
    Publication date: August 11, 2011
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Shujun DANG, Sha MA, Xianghua WANG, Tianle DENG, Xiaobo CHEN, Chengyu WANG
  • Publication number: 20110182200
    Abstract: A method, device and user equipment (UE) for transmitting multi-cell scheduling information is provided. When at least two cells are serving the UE, the method for transmitting multi-cell scheduling information includes the following steps: determining a main cell of the UE from the at least two cells; transmitting, in the main cell, the scheduling information of the main cell and an auxiliary cell which are serving the UE.
    Type: Application
    Filed: March 21, 2011
    Publication date: July 28, 2011
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Lei Wan, Sha Ma, Mingyu Zhou, Jingyuan Sun, Chengyu Wang, Di Zhu, Yuan Xia, Xiaotao Ren, Shujun Dang
  • Patent number: 7929489
    Abstract: A method for discovering a network service provider, a network side transmitting apparatus and a network discovering apparatus for a user side device are disclosed. The method is used in a wireless communication network which includes a network access provider, a user side device and a network service provider. The method includes: issuing, by a network side, information that identifies a network access provider sharing mode; discovering the network service provider by the user side device in a manner corresponding to the information that identifies the network access provider sharing mode, when the user side device accesses the network. The present invention discovers a network service provider by incorporating different network access provider sharing modes into the existing wireless communication networks, and thus can utilize network resources effectively.
    Type: Grant
    Filed: August 28, 2007
    Date of Patent: April 19, 2011
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Shujun Dang
  • Patent number: 7876708
    Abstract: The present invention discloses a method and a corresponding apparatus for discovering NSPs. The method includes: transmitting, by network-side, information about NSPs supported by the current NAP; transmitting, by the network-side, first change information about NSPs supported by the NAP at a fixed period; obtaining, by a CPE, the first change information about the NSPs supported by the NAP accessible at a current position when accessing a network; determining whether the first change information is consistent with stored change information about NSPs supported by the NAP, if it is, obtaining stored information about NSPs supported by the NAP, otherwise, obtaining information about NSPs supported by the NAP transmitted by the network-side; and adding the obtained information about the NSPs as information about available NSPs discovered. The present invention can reduce extra occupancy of air interface resources and effectively reduce time consumption in the process of network discovering and selecting.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: January 25, 2011
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Shujun Dang
  • Patent number: 7869401
    Abstract: The present invention discloses a method, a system and apparatus of realizing indicating resource of MBS. The method comprises: a Down Link-MAP (DL-MAP) message sent by a Base Station (BS) carries resource information associated Multicast and Broadcast Service (MBS); receiving the DL-MAP message sent by BS, Mobile station (MS) judges whether the service information associated with MBS comprised in this message is identical to that reserved by the MS itself, if yes, the MS determines the physical channel resource occupied by MBS according to the resource information which is associated with MBS and carried in this message. The present invention also discloses another method of realizing indicating resource of MBS. The present invention solves the problem that the prior art cannot directly perform resource indication upon multicast service.
    Type: Grant
    Filed: May 1, 2007
    Date of Patent: January 11, 2011
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Shujun Dang, Yuehua Chen, Jianjun Wu
  • Patent number: 7688907
    Abstract: A method for channel estimation in an Orthogonal Frequency Division Multiplexing (OFDM) system, including: a transmitter determining a distribution density of pilot OFDM symbols according to the maximum Doppler frequency shift supported by the system, and transmitting pilot OFDM symbols and data OFDM symbols based on the distribution density of the pilot OFDM symbols; a receiver estimating frequency-domain channel information of the data OFDM symbols according to the received pilot OFDM symbols. The invention solves the problem of a large performance loss at a high-delay channel and a system with rapidly varying channel. The invention offers a better performance of channel estimation while the channel environment is varying rapidly, enhances the performance of a high-delay channel, makes a data communication system more suitable to a changing environment and makes better performance to the practical channel estimation, so that the data transmission efficiency of the system is increased.
    Type: Grant
    Filed: January 12, 2007
    Date of Patent: March 30, 2010
    Assignee: Huawei Technologies Co., Ltd.
    Inventor: Shujun Dang
  • Publication number: 20100046465
    Abstract: A method for allocating a time and frequency resource of a resource request indicator (RRI), a method for transmitting an RRI, and a device thereof are provided, which relate to a wireless communication technique and reduce the overhead of the time and frequency resource. The method for allocating a time and frequency resource of an RRI includes: allocating codes for an RRI and other uplink control signaling; and multiplexing the RRI and other uplink control signaling in the same time and frequency resource in a code division manner.
    Type: Application
    Filed: October 27, 2009
    Publication date: February 25, 2010
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Shujun DANG, Sha MA, Xianghua WANG, Tianle DENG, Xiaobo CHEN, Chengyu WANG
  • Publication number: 20080170524
    Abstract: A method and a device for implementing Network Service Provider (NSP) realm discovery, which are designed to discover the NSP realm by the user equipment in wireless communication network. In the present invention, the network side notifies the user equipment of the NSP realm; the user equipment receives the realm notified by the network side and discovers the required NSP realm.
    Type: Application
    Filed: February 22, 2008
    Publication date: July 17, 2008
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Shujun DANG, Peng ZHANG
  • Publication number: 20080133606
    Abstract: A method and a subscriber device for implementing an NSP selection. The method includes: when a subscriber device accesses a network, obtaining information of an NAP accessible at current location; when the subscriber device stores the information of NSPs accessible for the NAP, obtaining the information of NSPs accessible for the NAP; otherwise, receiving the information of NSPs accessible for the NAP from the network side; adding the information of accessible NSPs to the information of available NSPs; and selecting an NSP from the available NSPs for a service of the subscriber device. Therefore, extra occupation on air interface resources is lowered, and the time consumption during the network discovering and selecting process is effectively lowered.
    Type: Application
    Filed: December 21, 2007
    Publication date: June 5, 2008
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Shujun DANG, Peng Zhang
  • Publication number: 20080095073
    Abstract: The present invention discloses a method and a corresponding apparatus for discovering NSPs. The method includes: transmitting, by network-side, information about NSPs supported by the current NAP; transmitting, by the network-side, first change information about NSPs supported by the NAP at a fixed period; obtaining, by a CPE, the first change information about the NSPs supported by the NAP accessible at a current position when accessing a network; determining whether the first change information is consistent with stored change information about NSPs supported by the NAP, if it is, obtaining stored information about NSPs supported by the NAP, otherwise, obtaining information about NSPs supported by the NAP transmitted by the network-side; and adding the obtained information about the NSPs as information about available NSPs discovered. The present invention can reduce extra occupancy of air interface resources and effectively reduce time consumption in the process of network discovering and selecting.
    Type: Application
    Filed: December 21, 2007
    Publication date: April 24, 2008
    Applicant: Huawei Technologies Co., Ltd.
    Inventor: Shujun Dang
  • Publication number: 20080086561
    Abstract: A method for the network management server to get the log information from the network element device comprises: firstly, the network element device allocates a section of the memory resource as the log buffer, and stores the log information generated by the network element device in the log buffer; then, the network element device detects dynamically the residual capacity of the log buffer, and when the residual capacity of the log buffer is less than the special threshold, it notifies the network management server to fetch the log information. The present invention can avoid the loss of the log information of network element device to ensure the categoricalness of the log information.
    Type: Application
    Filed: October 29, 2007
    Publication date: April 10, 2008
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Shujun DANG, Li Yang, Yuehua Chen, Lan Zou
  • Publication number: 20070286120
    Abstract: A method for discovering a network service provider, a network side transmitting apparatus and a network discovering apparatus for a user side device are disclosed. The method is used in a wireless communication network which includes a network access provider, a user side device and a network service provider. The method includes: issuing, by a network side, information that identifies a network access provider sharing mode; discovering the network service provider by the user side device in a manner corresponding to the information that identifies the network access provider sharing mode, when the user side device accesses the network. The present invention discovers a network service provider by incorporating different network access provider sharing modes into the existing wireless communication networks, and thus can utilize network resources effectively.
    Type: Application
    Filed: August 28, 2007
    Publication date: December 13, 2007
    Applicant: Huawei Technologies Co., Ltd.
    Inventor: Shujun Dang
  • Publication number: 20070253367
    Abstract: The present invention discloses a method, a system and apparatus of realizing indicating resource of MBS. The method comprises: a Down Link-MAP (DL-MAP) message sent by a Base Station (BS) carries resource information associated Multicast and Broadcast Service (MBS); receiving the DL-MAP message sent by BS, Mobile station (MS) judges whether the service information associated with MBS comprised in this message is identical to that reserved by the MS itself, if yes, the MS determines the physical channel resource occupied by MBS according to the resource information which is associated with MBS and carried in this message. The present invention also discloses another method of realizing indicating resource of MBS. The present invention solves the problem that the prior art cannot directly perform resource indication upon multicast service.
    Type: Application
    Filed: May 1, 2007
    Publication date: November 1, 2007
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Shujun Dang, Yuehua Chen, Jianjun Wu
  • Publication number: 20070230351
    Abstract: The invention discloses a method, a system and apparatus for providing modulation and coding mode used by multicast service macro diversity. In this method, a message containing relevant information of modulation and coding mode(s) used by an MBS zone is sent in the MBS zone at first; the MS receives the message, analyzes other messages in the MBS zone according to the relevant information of the modulation and coding mode(s) contained in this message, and receives MBS service data according to the analyzed result upon other messages in the MBS zone. The invention resolves the problem that an entity is required to uniformly manage the coding and modulation mode definition of each cell in the prior art, as well as the problem that the DCD count in the DL-MAP message has to be continuously tracked in the prior art.
    Type: Application
    Filed: May 1, 2007
    Publication date: October 4, 2007
    Applicant: Huawei Technologies Co., Ltd.
    Inventor: Shujun Dang
  • Publication number: 20070183519
    Abstract: A method for channel estimation in an Orthogonal Frequency Division Multiplexing (OFDM) system, including: a transmitter determining a distribution density of pilot OFDM symbols according to the maximum Doppler frequency shift supported by the system, and transmitting pilot OFDM symbols and data OFDM symbols based on the distribution density of the pilot OFDM symbols; a receiver estimating frequency-domain channel information of the data OFDM symbols according to the received pilot OFDM symbols. The invention solves the problem of a large performance loss at a high-delay channel and a system with rapidly varying channel. The invention offers a better performance of channel estimation while the channel environment is varying rapidly, enhances the performance of a high-delay channel, makes a data communication system more suitable to a changing environment and makes better performance to the practical channel estimation, so that the data transmission efficiency of the system is increased.
    Type: Application
    Filed: January 12, 2007
    Publication date: August 9, 2007
    Applicant: Huawei Technologies Co., Ltd.
    Inventor: Shujun Dang