Patents by Inventor Yan Meng

Yan Meng 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: 20210160922
    Abstract: A method, device and computer readable medium for determining TA. A method includes, the network device (120) determines an estimation of a timing advance and an error of the timing advance based on a random access preamble received from the terminal device (110). The network device (120) determines different communication modes with different lengths of overheads for the terminal device (110) based on the error. The network device (120) may update the estimation of the timing advance based on feedback information from the terminal device (110). In this way, accuracy of the estimation of the timing advancing is improved.
    Type: Application
    Filed: June 6, 2018
    Publication date: May 27, 2021
    Inventors: Zhe LUO, Tao TAO, Jianguo LIU, Gang SHEN, Jun WANG, Zhuo WU, Yan MENG
  • Publication number: 20210070945
    Abstract: Methods for improving the dispersion of optical brighteners in polymeric compositions are provided. Polymeric compositions obtained by these methods are also provided. Premixes for use in the methods are also provided. In particular, methods for incorporating an optical brightener in a polymeric composition comprising dissolving the optical brightener in a solvent prior to adding the optical brightener to the polymeric compositions are provided.
    Type: Application
    Filed: September 3, 2020
    Publication date: March 11, 2021
    Inventors: Yan MENG, Michael John WATSON, Chris HELT, Danaya PRATCHAYANAN, Amanda BURTON, Leeanne BROWN
  • Patent number: 10931412
    Abstract: Embodiments of the present disclosure provide a method and apparatus of obtaining feedback of HARQ acknowledgment information. The method comprises allocating to UE an uplink control channel resource for report of HARQ acknowledgment information related to downlink data transmission on an unlicensed carrier. The method also comprises obtaining feedback of the HARQ acknowledgment information from the UE within a predefined deferral window. The predefined deferral window specifies a minimum delay and a maximum delay for report of the HARQ acknowledgment information. The embodiments of the present disclosure may increase the reliability and reduce the latency of HARQ acknowledgment information feedback. In addition, the embodiments of the present disclosure may not only be for LAA scenarios, but also may be extended to standalone LAA access scenarios on unlicensed carriers.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: February 23, 2021
    Assignee: Alcatel Lucent
    Inventors: Jianguo Liu, Tao Tao, Yan Meng, Zhe Luo, Dawei Wang, Junrong Gu, Gang Shen
  • Patent number: 10924295
    Abstract: The present invention relates to a method and an apparatus for occupying an unlicensed band channel, thereby avoiding misjudgment of an occupied unlicensed band state. A method for occupying an unlicensed band channel includes: a user equipment receiving a power increase rate of a reference signal transmission unit of an unlicensed band channel determined by a secondary cell (Scell) base station; the user equipment receiving, in the unlicensed band channel, a sub-frame of reference signal transmission unit level power distribution sent by the Scell base station; the user equipment decoding the power increase rate; and the user equipment using the power increase rate to process the sub-frame.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: February 16, 2021
    Assignee: ALCATEL LUCENT
    Inventors: Junrong Gu, Feng Han, Jianguo Liu, Yan Meng, Jun Wang, Zhuo Wu, Gang Shen, Tao Tao
  • Publication number: 20200100893
    Abstract: The present invention relates to a kit for preparing a customizable flesh simulating silicone gel or a flesh simulating silicone foam in particular for use in medical devices and a process for preparing said customizable flesh simulating silicone gel or silicone foam, in particular by using a 3D-printer.
    Type: Application
    Filed: September 30, 2019
    Publication date: April 2, 2020
    Inventors: Matthew KIHARA, Francois MARTIN, Matthew RYAN, Yan MENG, Leeanne BROWN
  • Patent number: 10477579
    Abstract: Embodiments of the present disclosure relates to a communication device working on unlicensed frequency band and a method for executing the same. The method comprises: determining a mapping relationship between multiple quality of service (QoS) priority classes and multiple Listen-Before-Talk (LBT) priority classes, wherein the multiple QoS priority classes are in one-to-one correspondence with multiple QoS requirements; and transmitting radio traffic based on the mapping relationship. Embodiments of the present disclosure proposes the mapping relationship between LBT priority class and various QoS priority classes associated with different radio traffic types and presents signaling design and exchange related to the mapping relationship.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: November 12, 2019
    Assignee: Alcatel Lucent
    Inventors: Feng Han, Jianguo Liu, Tao Tao, Yan Meng, Junrong Gu
  • Patent number: 10470213
    Abstract: The present invention relates to a method and an apparatus for implementing Listen-Before-Talk. According to an embodiment of the present invention, if the channel assessment does not stop at a boundary of the first symbol, the preamble comprises at least a first part, and if the channel assessment stops at the boundary of the first symbol, the preamble comprises a second part. And the first part is transmitted on a remaining portion of the first symbol until the end of the first symbol, and the second part is transmitted on at least one symbol following the first symbol. Besides, the data is transmitted to the receiving device in at least one symbol in the subframe in which the preamble transmission ends.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: November 5, 2019
    Assignee: Alcatel-Lucent
    Inventors: Jianguo Liu, Feng Han, Yan Meng, Gang Shen, Sigen Ye, Jun Wang, Matthew Baker
  • Publication number: 20190159243
    Abstract: The disclosure provides a method for assisting a UE to implement a UL channel access in a base station of an eLAA-based communication system. The method comprises determining a listen-before-talk (LBT) priority for the UE; and transmitting a first signaling indicating the determined LBT priority to the UE. An enhanced UL channel access mechanism is proposed by the disclosure. In this mechanism, the eNB can provide some assistance to facilitate UL access. Chances of multiple user multiplexing and spectrum efficiency in LAA UL can be improved by this solution.
    Type: Application
    Filed: March 30, 2017
    Publication date: May 23, 2019
    Applicant: Alcatel Lucent
    Inventors: Tao Tao, Jianguo Liu, Yan Meng, Junrong Gu, Dawei Wang, Zhe Luo, Gang Shen
  • Publication number: 20190123861
    Abstract: Embodiments of the present disclosure provide a method and apparatus of obtaining feedback of HARQ acknowledgment information. The method comprises allocating to UE an uplink control channel resource for report of HARQ acknowledgment information related to downlink data transmission on an unlicensed carrier. The method also comprises obtaining feedback of the HARQ acknowledgment information from the UE within a predefined deferral window. The predefined deferral window specifies a minimum delay and a maximum delay for report of the HARQ acknowledgment information. The embodiments of the present disclosure may increase the reliability and reduce the latency of HARQ acknowledgment information feedback. In addition, the embodiments of the present disclosure may not only be for LAA scenarios, but also may be extended to standalone LAA access scenarios on unlicensed carriers.
    Type: Application
    Filed: March 31, 2017
    Publication date: April 25, 2019
    Applicant: Alcatel Lucent
    Inventors: Jianguo Liu, Tao Tao, Yan Meng, Zhe Luo, Dawei Wang, Junrong Gu, Gang Shen
  • Patent number: 10254521
    Abstract: There is provided a luminaire (1) and a collimating optics (2) for LED lights (5). The collimating optics (2) comprises a reflection collimator (3) having a first aperture (7) for allowing incoming light from a LED light (5) to enter the collimator (3) and a second aperture (9) for allowing outgoing light to exit the collimator (3). The reflection collimator (3) further has a wall (15) with a reflective inner surface for guiding the incoming light from the first aperture (7) towards the second aperture (9). A first convex lens (11) is arranged at a distance from the first aperture (7) for refracting the incoming light, and a second convex lens (13) is arranged at the second aperture (9) for refracting and collimating the outgoing light. With the disclosed collimating optics the collimating capability is improved without the size of the optics being increased.
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: April 9, 2019
    Assignee: SIGNIFY HOLDING B.V.
    Inventors: Li Wei Sun, Yun Li, Yan Meng Sun, Li Cheng
  • Publication number: 20190059104
    Abstract: Embodiments of the present disclosure disclose a method and apparatus for determining a channel sensing threshold in uplink channel detection of licensed-assisted access. The method comprises determining one or more parameters associated with the user equipment; and determining a channel sensing threshold for the user equipment based on at least one of the one or more parameters. The threshold determination method may realize suitable threshold determination, flexible channel access, and balance of channel access opportunity among a plurality of radio access points.
    Type: Application
    Filed: January 30, 2017
    Publication date: February 21, 2019
    Applicant: Alcatel Lucent
    Inventors: Junrong Gu, Jianguo Liu, Tao Tao, Yan Meng, Sigen Ye, Gang Shen
  • Publication number: 20190045535
    Abstract: Embodiments of the present disclosure provide a method and apparatus for transmitting uplink grant, the method comprising: transmitting the uplink grant by selecting a downlink subframe from a plurality of candidate downlink subframes each of the plurality of downlink subframes enabling scheduling of at least one user equipment to start transmitting burst data in a uplink subframe.
    Type: Application
    Filed: January 24, 2017
    Publication date: February 7, 2019
    Applicant: Alcatel Lucent
    Inventors: Jianguo Liu, Tao Tao, Yan Meng, Sigen Ye, Junrong Gu, Gang Shen
  • Publication number: 20180279367
    Abstract: Embodiments of the present disclosure relates to a communication device working on unlicensed frequency band and a method for executing the same. The method comprises: determining a mapping relationship between multiple quality of service (QoS) priority classes and multiple Listen-Before-Talk (LBT) priority classes, wherein the multiple QoS priority classes are in one-to-one correspondence with multiple QoS requirements; and transmitting radio traffic based on the mapping relationship. Embodiments of the present disclosure proposes the mapping relationship between LBT priority class and various QoS priority classes associated with different radio traffic types and presents signaling design and exchange related to the mapping relationship.
    Type: Application
    Filed: September 8, 2016
    Publication date: September 27, 2018
    Applicant: Alcatel Lucent
    Inventors: Feng Han, Jianguo Liu, Tao Tao, Yan Meng, Junrong Gu
  • Publication number: 20180279386
    Abstract: Embodiments of the present disclosure relate to a method and apparatus for listening before talk (LBT). A method of LBT is provided. The method comprises: determining an access priority class based on a plurality of types of traffic to be transmitted on a plurality of carriers; determining a LBT parameter based on the determined access priority class; and performing the LBT using the LBT parameter.
    Type: Application
    Filed: August 25, 2016
    Publication date: September 27, 2018
    Applicant: Alcatel Lucent
    Inventors: Jianguo Liu, Tao Tao, Yan Meng, Feng Han, Junrong Gu, Gang Shen
  • Publication number: 20180279370
    Abstract: The present disclosure provides a method of supporting multiple Qo S in a Listen-Before-Talk operation. According to an embodiment of the present disclosure, the method comprises: configuring m Listen-Before-Talk priority classes, which are defined by m different parameter sets respectively; determining Listen-Before-Talk priority classes for respective traffic in a transmission burst; and selecting one of the determined Listen-Before-Talk priority classes as a Listen-Before-Talk priority class for access. Through the present disclosure, the coexistence between LTE LAA and WiFi can be realized in respect of the Qo S priority, and the scheduling flexibility of LAA is still retained.
    Type: Application
    Filed: September 5, 2016
    Publication date: September 27, 2018
    Applicant: Alcatel Lucent
    Inventors: Tao Tao, Jianguo Liu, Feng Han, Yan Meng, Junrong Gu, Gang Shen
  • Publication number: 20180242363
    Abstract: Embodiments of the present disclosure relate to a method and a transmitter of implementing multiple-carrier Listen-Before-Talk in a wireless communication system. The method comprises: selecting a carrier group from a plurality of carriers as a synchronization carrier; determining a transmission synchronization boundary based on an extended CCA performed on the synchronization carrier; performing an initial CCA for the plurality of carriers; and determining that transmission is to be performed on at least one of the plurality of carriers based on at least one of the result of the extended CCA and the result of the initial CCA. The embodiments according to the present disclosure require only performing eCCA on the carrier group selected as the synchronization carrier. Compared with Wi-Fi, the LTE system can compete with Wi-Fi more fairly, and compared with the traditional solution it is more possible to obtain some carriers in the unlicensed spectrum.
    Type: Application
    Filed: July 26, 2016
    Publication date: August 23, 2018
    Applicant: Alcatel Lucent
    Inventors: Jianguo Liu, Yan Meng, Tao Tao, Gang Shen, Junrong Gu, Feng Han, Sigen Ye
  • Publication number: 20180152969
    Abstract: The present invention provides a method of triggering a LBT random backoff mechanism in LTE LAA, the method comprising: evaluating a current channel to obtain a first parameter characterizing a congestion state of the current channel; comparing the first parameter with a first threshold to obtain a first comparison result; and adapting a contention window size based on the first comparison result. The method further comprises comparing the first parameter with a second threshold to obtain a second comparison result; and adapting the contention window size based on the second comparison result. The first parameter is a packet error rate metric or a collision metric.
    Type: Application
    Filed: May 12, 2016
    Publication date: May 31, 2018
    Applicant: ALCATEL LUCENT
    Inventors: Tao Tao, Jianguo Liu, Feng Han, Yan Meng, Sigen Ye, Junrong Gu, Dandan Wang, Gang Shen
  • Publication number: 20180092050
    Abstract: The present invention relates to a method and an apparatus for occupying an unlicensed band channel, thereby avoiding misjudgment of an occupied unlicensed band state. A method for occupying an unlicensed band channel includes: a user equipment receiving a power increase rate of a reference signal transmission unit of an unlicensed band channel determined by a secondary cell (Scell) base station; the user equipment receiving, in the unlicensed band channel, a sub-frame of reference signal transmission unit level power distribution sent by the Scell base station; the user equipment decoding the power increase rate; and the user equipment using the power increase rate to process the sub-frame.
    Type: Application
    Filed: April 1, 2016
    Publication date: March 29, 2018
    Applicant: Alcatel Lucent
    Inventors: Junrong Gu, Feng Han, Jianguo Liu, Yan Meng, Jun Wang, Zhuo Wu, Gang Shen, Tao Tao
  • Publication number: 20170325263
    Abstract: The present invention relates to a method and an apparatus for implementing Listen-Before-Talk. According to an embodiment of the present invention, if the channel assessment does not stop at a boundary of the first symbol, the preamble comprises at least a first part, and if the channel assessment stops at the boundary of the first symbol, the preamble comprises a second part. And the first part is transmitted on a remaining portion of the first symbol until the end of the first symbol, and the second part is transmitted on at least one symbol following the first symbol. Besides, the data is transmitted to the receiving device in at least one symbol in the subframe in which the preamble transmission ends.
    Type: Application
    Filed: November 3, 2015
    Publication date: November 9, 2017
    Applicant: Alcatel Lucent
    Inventors: Jianguo LIU, Feng HAN, Yan MENG, Gang SHEN, Sigen YE, Jun WANG, Matthew BAKER
  • Publication number: 20160295621
    Abstract: The prior art does not prescribe how to divide a control plane among network elements in a D2D communication under cellular architecture. To fill the technological gap, the present invention provides a method of performing the D2D communication and a corresponding control method, wherein a protocol signaling and protocol stack function of a media access (MAC) layer are implemented in a UE performing the D2D communication, and a control function is implemented by a master UE without introducing the base station, thereby reducing complexity of the base station and avoiding delay caused by the control of the base station; and wherein a protocol signaling and protocol stack function of a radio resource management (RRC) layer are implemented in the base station and the UE, and the control function is implemented by the base station and the base station performs mobility management.
    Type: Application
    Filed: October 28, 2013
    Publication date: October 6, 2016
    Applicant: ALCATEL LUCENT
    Inventors: Feng Han, Wu Zheng, Kaibin Zhang, Yan Meng, Zheng Liu