Patents by Inventor Zewei Chen

Zewei Chen 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: 9794022
    Abstract: A modulation processing method, a UE and a base station are disclosed; wherein, the base station transmits a high-layer configuration signaling to the UE, wherein the high-layer configuration signaling is used to indicate whether to support a high-order Quadrature Amplitude Modulation (QAM) modulation scheme, wherein the high-order QAM modulation scheme is a modulation scheme of M QAM, wherein M is a number greater than 64.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: October 17, 2017
    Assignee: XI'AN ZHONGXING NEW SOFTWARE CO., LTD.
    Inventors: Jun Xu, Bo Dai, Zewei Chen, Yu Ngok Li, Junfeng Zhang
  • Publication number: 20170279916
    Abstract: A method of content delivery in a content delivery network (CDN), where the CDN is deployed, operated and managed by a content delivery network service provider (CDNSP). The CDN comprises a set of content servers and a domain name system (DNS). For a given content provider, a determination is first made whether the content provider has “cold content” delivery requirements by evaluating one or more factors that include: total content size, size of content objects expected to be served, uniqueness of content, total number of content objects, and a percentage of the total content size that is expected to account for a given percentage of traffic. Upon a determination that the content provider has cold content delivery requirements, a subset of the CDN content servers are configured to implement a set of one or handling rules for managing delivery of the cold content from the CDN content servers.
    Type: Application
    Filed: June 12, 2017
    Publication date: September 28, 2017
    Applicant: Akamai Technologies, Inc.
    Inventors: Laszlo Kovacs, Keith E. Oslakavic, Mangesh Kasbekar, Zewei Chen
  • Publication number: 20170171014
    Abstract: The present document provides a modulation processing method and apparatus for high-order coding, a base station and a terminal, herein the method includes: a base station selecting a Modulation and Coding Scheme (MCS) table according to a transmission type and predefined information, herein the MCS table includes a MCS table supporting a M-order modulation and a MCS table not supporting a M-order modulation, herein M>64; and the base station transmitting downlink control signaling to a terminal, the downlink control signaling including a modulation and coding scheme field IMCS, herein the IMCS is based on the MCS table supporting or not supporting a M-order modulation selected by the base station.
    Type: Application
    Filed: September 1, 2014
    Publication date: June 15, 2017
    Inventors: Zewei CHEN, Bo DAI, Yu Ngok LI, Zhisong ZUO, Jun XU, Shuqiang XIA
  • Patent number: 9680952
    Abstract: A method of content delivery in a content delivery network (CDN), where the CDN is deployed, operated and managed by a content delivery network service provider (CDNSP). The CDN comprises a set of content servers and a domain name system (DNS). For a given content provider, a determination is first made whether the content provider has “cold content” delivery requirements by evaluating one or more factors that include: total content size, size of content objects expected to be served, uniqueness of content, total number of content objects, and a percentage of the total content size that is expected to account for a given percentage of traffic. Upon a determination that the content provider has cold content delivery requirements, a subset of the CDN content servers are configured to implement a set of one or handling rules for managing delivery of the cold content from the CDN content servers.
    Type: Grant
    Filed: May 12, 2012
    Date of Patent: June 13, 2017
    Assignee: Akamai Technologies, Inc.
    Inventors: Laszlo Kovacs, Keith E. Oslakovic, Mangesh Kasbekar, Zewei Chen
  • Publication number: 20160212712
    Abstract: A processing method and device for reducing uplink power, UE and an Evolved eNodeB are provided. The uplink power reduction processing method is applied to a scenario where a plurality of Uplink Control Information (UCI) are transmitted on different uplink Component Carriers (CCs) of the same subframe, and the method includes: it is determined that the sum of power of the uplink CCs exceeds a transmission power threshold of UE; and uplink power of the UE is reduced according to a preset power reduction rule. By the present invention, a problem about uplink power control for transmission of the plurality of UCI on different carriers of the same subframe is solved, and the effects of providing different protection for different data requirements and effectively controlling the uplink power are further achieved.
    Type: Application
    Filed: June 17, 2014
    Publication date: July 21, 2016
    Inventors: Zewei CHEN, Bo DAI, Shuqiang XIA, Senbao GUO, Yunfeng SUN, Yu Ngok LI
  • Publication number: 20160081063
    Abstract: The present document provides a method for determining transport block size (TBS), a base station and a terminal, including: a terminal receives downlink control signaling transmitted by a base station, obtains a combination of I?TBS and N?PRB, {I?TBS, N?PRB}, and selects a mapping way to determine transport block size according to {I?TBS, N?PRB}, wherein, the mapping way includes at least one of following rules: a first rule, using high-layer TBS to obtain low-layer TBS according to I?TBS, N?PRB}; a second rule, obtaining TBS according to the {I?TBS, N?PRB} and a mapping relationship table pre-created; a third rule, determining a mapping factor according to the {I?TBS, N?PRB}, obtaining {ITBS, NPRB} according to the {I?TBS, N?PRB} and mapping factor, then determining TBS according to the {ITBS, NPRB} and a related {ITBS, NPRB} and TBS mapping relationship table, wherein the mapping factor is a real number greater than 0.
    Type: Application
    Filed: April 14, 2014
    Publication date: March 17, 2016
    Inventors: Zewei CHEN, Bo DAI, Jun XU, Jin XU, Wei GOU, Zhisong ZUO
  • Publication number: 20150372784
    Abstract: A modulation processing method, a UE and a base station are disclosed; wherein, the base station transmits a high-layer configuration signaling to the UE, wherein the high-layer configuration signaling is used to indicate whether to support a high-order Quadrature Amplitude Modulation (QAM) modulation scheme, wherein the high-order QAM modulation scheme is a modulation scheme of M QAM, wherein M is a number greater than 64.
    Type: Application
    Filed: October 30, 2013
    Publication date: December 24, 2015
    Inventors: Jun XU, Bo DAI, Zewei CHEN, Yu Ngok LI, Junfeng ZHANG
  • Publication number: 20120226649
    Abstract: A method of content delivery in a content delivery network (CDN), where the CDN is deployed, operated and managed by a content delivery network service provider (CDNSP). The CDN comprises a set of content servers and a domain name system (DNS). For a given content provider, a determination is first made whether the content provider has “cold content” delivery requirements by evaluating one or more factors that include: total content size, size of content objects expected to be served, uniqueness of content, total number of content objects, and a percentage of the total content size that is expected to account for a given percentage of traffic. Upon a determination that the content provider has cold content delivery requirements, a subset of the CDN content servers are configured to implement a set of one or handling rules for managing delivery of the cold content from the CDN content servers.
    Type: Application
    Filed: May 12, 2012
    Publication date: September 6, 2012
    Applicant: AKAMAI TECHNOLOGIES, INC.
    Inventors: Laszlo Kovacs, Keith E. Oslakovic, Mangesh Kasbekar, Zewei Chen
  • Patent number: 8180720
    Abstract: A method of content delivery in a content delivery network (CDN), where the CDN is deployed, operated and managed by a content delivery network service provider (CDNSP). The CDN comprises a set of content servers and a domain name system (DNS) associated with a CDN namespace. For a given content provider, a determination is first made whether the content provider has “cold content” delivery requirements by evaluating one or more factors that include: total content size, size of content objects expected to be served, uniqueness of content, total number of content objects, and a percentage of the total content size that is expected to account for a given percentage of traffic. Upon a determination that the content provider has cold content delivery requirements, a subset of the CDN content servers are configured to implement a set of one or handling rules for managing delivery of the cold content from the CDN content servers.
    Type: Grant
    Filed: July 21, 2008
    Date of Patent: May 15, 2012
    Assignee: Akamai Technologies, Inc.
    Inventors: Laszlo Kovacs, Keith E. Oslakovic, Mangesh Kasbekar, Zewei Chen
  • Publication number: 20080113088
    Abstract: A water adhesive, being a hybrid solution containing gelatin, a water-soluble polymer and water, or comprising gelatin, a water-soluble polymer and water, is disclosed. The preparation method of the water adhesive and application of the water adhesive in manufacture of a positive plate of a lithium ion battery are also disclosed. The present invention has the following beneficial technical effects: The water adhesive with the above formulation can achieve a good coating effect; each ingredient is easily available, with a lower cost; the water adhesive can be prepared through simple steps, making the manufacture easy to implement, with broad prospects for industrial application.
    Type: Application
    Filed: January 31, 2005
    Publication date: May 15, 2008
    Applicant: SHENZHEN BAK BATTERY CO., LTD.
    Inventors: Yunqing Lin, Zewei Chen, Can Ren, Xu Gao
  • Publication number: 20080107966
    Abstract: The present invention discloses a manufacturing method of an anode plate of a lithium ion battery, comprising a water-phase slurry preparation process including a raw-material mixing step, that is, mix the raw materials of anode active material powder and particles, a conductive agent, and a conductive agent adhesive uniformly into a paste slurry, where the conductive agent adhesive is used to make the conductive agent uniformly adhere to the surface of the anode active material powder and particles. In the raw-material mixing step, an accessory adhesive is added for improving adhesion and flexibility of the plate in cooperation with the conductive adhesive. A manufacturing method of an anode plate of a lithium ion battery is disclosed. The present invention also discloses an anode plate and a lithium ion battery manufactured by this method.
    Type: Application
    Filed: February 16, 2005
    Publication date: May 8, 2008
    Inventors: Yunqing Lin, Zewei Chen, Na Zhang, Can Ren
  • Patent number: 6965897
    Abstract: An improved data compression method and apparatus is disclosed, particularly for compressing large database tables. A data structure is disclosed which is fully compatible with the traditional DBMS demands, including the random access requirement of RDBMS. The data structure is built on a mixed format physical layout comprising of fixed-sized fields and variable-sized fields which are compressed depending on the size and frequency of the fields. An improved compression ratio is achieved by exploiting redundancy in the mixed format physical layout to encode the column-wise redundancy in the data itself and the correlations among columns. The present invention provides a very fast random access decompression and enables not only greater compression ratios, but also permits flexibility of choosing from a number of compression algorithms.
    Type: Grant
    Filed: October 25, 2002
    Date of Patent: November 15, 2005
    Assignee: AT&T Corp.
    Inventor: Zewei Chen