Patents by Inventor Pingping Wen

Pingping Wen 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: 9369904
    Abstract: The invention proposes a method and an apparatus for transmitting a buffer status report in a wireless network, where a user equipment is configured with a plurality of component carriers, the user equipment obtains an amount of data to be transmitted after respective media access layer protocol data units corresponding to the respective component carriers are generated, generates the uplink buffer status report message according to the amount of data to be transmitted, and reports the uplink buffer status report message to a base station serving the user equipment. The invention address the problem of how to report buffer status information when there are a plurality of media access layer protocol data units in a transport time interval. With the solution of the invention, the base station can definitively know how many uplink resources can be allocated for the user equipment to guarantee more efficient scheduling.
    Type: Grant
    Filed: May 3, 2010
    Date of Patent: June 14, 2016
    Assignee: Alcatel Lucent
    Inventors: Pingping Wen, Tao Yang
  • Publication number: 20160100397
    Abstract: One objective of the present invention is to provide uplink scheduling information reporting apparatus and System supporting multi-connectivity. Herein, a UE connected to multiple eNBs, the UE receives trigger configuration information about buffer status report of a logical channel group that a corresponding radio bearer belongs to, and radio bearer configuration information and uplink resource configuration information respectively corresponding to each of the multiple eNBs, when the BSR trigger condition of at least one of the multiple eNBs is satisfied, transmit to a corresponding eNB the buffer status report of the logical channel group that its corresponding radio bearer belongs to, so as to support uplink scheduling report in multi-connectivity.
    Type: Application
    Filed: April 29, 2014
    Publication date: April 7, 2016
    Applicant: Alcatel Lucent
    Inventors: Pingping Wen, Yun Deng, Chandrika Worrall, Tao Yang
  • Publication number: 20160057712
    Abstract: Embodiments of the present invention provide a method for reporting power headroom in support of multiple link connections.
    Type: Application
    Filed: April 3, 2014
    Publication date: February 25, 2016
    Applicant: ALCATEL LUCENT
    Inventors: Pingping Wen, Chandrika Worrall
  • Publication number: 20160050631
    Abstract: The present invention relates to a method and an apparatus for uplink transmission power control (TPC) of multi-link connections. The method for uplink TPC of multi-link connections according to an embodiment of the present invention includes: a user equipment (UE) receiving a cell path loss compensating factor and a reference power level of each carrier of each connection in the multi-link connections, receiving an uplink transmission power adjustment amount of each carrier of each connection in the multi-link connections, and measuring a path loss of each carrier of each connection in the multi-link connections. According to the received cell path loss compensating factor, reference power level, and uplink transmission power adjustment amount, and the measured path loss, the UE calculates uplink transmission power of each carrier of each connection in the multi-link connections, and transmits data based on the uplink transmission power.
    Type: Application
    Filed: March 21, 2014
    Publication date: February 18, 2016
    Applicant: Alcatel Lucent
    Inventors: Pingping Wen, Chandrika Worrall
  • Patent number: 9107233
    Abstract: The present invention proposes a distributed probabilistic dynamic interference coordination scheme to decrease or eliminate inter-cell interference, wherein the mechanism of ALOHA is introduced into the dynamic interference coordination. According to the first aspect of the present invention, a resource scheduling method is proposed, comprising: selecting resource to be scheduled from a scheduling list; selecting a first user equipment to be scheduled from the scheduling list; allocating the selected resource to the first user equipment by probability of p, wherein 0?p?1, if the first user equipment is of edge user. The present invention further proposes a scheduler implementing the aforesaid resource scheduling method and a base station (BS) comprising the aforesaid scheduler.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: August 11, 2015
    Assignee: Alcatel Lucent
    Inventors: Pingping Wen, Mingli You, Shaoquan Wu, Fanglei Sun
  • Patent number: 9036494
    Abstract: The present application discloses a method and device for transmitting and receiving a power headroom report, wherein the method for transmitting a power headroom report comprises: forming, at a user equipment, a power headroom report specific to each carrier component; and transmitting the power headroom report to a base station. By implementing the method and device disclosed by the present application, a complete power headroom reporting mechanism can be provided to a LTE-A system having multiple new features. In addition, by receiving the power headroom report specific to each carrier component, the base station can further derive how many resource units need to be allocated to the user equipment, and a corresponding modulation and coding scheme so as to perform an effective resource scheduling and guarantee transmission quality of wireless links.
    Type: Grant
    Filed: February 11, 2010
    Date of Patent: May 19, 2015
    Assignee: Alcatel Lucent
    Inventors: Pingping Wen, Lin Yang, Chongxian Zhong
  • Patent number: 8976668
    Abstract: A method and an apparatus for optimizing a user plan operation in a wireless communication system based on carrier aggregation are provided in the present invention. Firstly, a user equipment receives a downlink carrier component removal signaling from a base station, the downlink carrier component removal signaling is used to indicate a removed downlink carrier component; then, the user equipment, according to the received downlink carrier component removal signaling, stops the pending HARQ procedures of the removed downlink carrier component and flushes the HARQ receiving buffer related to the removed downlink carrier component and/or stops a re-ordering procedure and/or generates a status report and sends the status report to the base station, wherein the status report is used to indicate the base station to perform retransmission and inform the base station of the data needed to be retransmitted.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: March 10, 2015
    Assignee: Alcatel Lucent
    Inventors: Tao Yang, Pingping Wen
  • Publication number: 20150049697
    Abstract: The invention provides a method and apparatus for configuring a plurality of scheduling request triggers for a user equipment in a communication system. First, the base station determines a plurality of scheduling request triggers and a transmission type of each of the plurality of scheduling request triggers for the user equipment, based on the service characteristics of services of the user equipment; and then the base station transmits configuration information of the plurality of scheduling request triggers to the user equipment, the configuration information of the plurality of scheduling request triggers including the allocation way of the plurality of scheduling request triggers with respect to the services of the user equipment and the transmission type of each of the plurality of scheduling request triggers. The user equipment first receives the configuration information from the base station.
    Type: Application
    Filed: March 19, 2012
    Publication date: February 19, 2015
    Applicant: Alcatel Lucent
    Inventors: Chandrika K. Worrall, Sudeep K. Palat, Pingping Wen
  • Publication number: 20150031368
    Abstract: The invention provides a solution to discover a small cell in a heterogeneous communication network. A macro base station (10) judges whether a user equipment (20) has approached to a target region (S111, S112, S120) that includes one or more candidate small cells based upon stored location range information of all candidate small cells in a macro cell and estimated position information of the user equipment and judges (S130) whether to instruct the user equipment to perform a periodical measurement on the one or more candidate small cells to discover small cells, and if so, obtains density information (S141) that indicates a density of the candidate small cells in the target region, determines (S142) an interval for the periodical measurement of the user equipment based upon the obtained density information and transmits (S143, S210) a first signaling to the user equipment to instruct the user equipment to perform the periodical measurement at the determined interval.
    Type: Application
    Filed: March 18, 2013
    Publication date: January 29, 2015
    Applicant: Alcatel Lucent
    Inventors: Chongxian Zhong, Pingping Wen, Tao Yang
  • Publication number: 20140194125
    Abstract: In order to solve the technical problem that the discontinuous reception (DRX) decreases the accuracy and reliability of cell handover measurement, the invention proposes methods implementing a configuration of DRX and measurement in the UK and the EnodeB equipment. The method comprises, determining that a neighboring cell is discovered, the UE updates the DRX configuration, and the eNodeB equipment update the DRX configuration synchronously with the UE; the UE implements a measurement used for handover with respect to the neighboring cell based on the updated DRX configuration, and transmits a measurement report to the eNodeB equipment serving the UE, the eNodeB equipment receives the measurement report transmitted by the UE. The flexibility of measurement is improved. Preferably, the updated DRX configuration matches with the measurement opportunity, which can provide more accurate and reliable measurement results.
    Type: Application
    Filed: July 13, 2012
    Publication date: July 10, 2014
    Applicant: Alcatel Lucent
    Inventors: Pingping Wen, Chongxian Zhong, Jialin Zou, Tao Yang
  • Publication number: 20140128084
    Abstract: The invention provides solutions of discovering/identifying a small cell in a heterogenous communication network. In one solution, a macro base station determines whether a user equipment UE has approached to one or more small cells based upon location range information of respective small cells in a macro cell and estimated location information of an UE and if so, then the macro base station transmits a dedicated signaling to the UE, and the UE triggers a search based upon the dedicated signaling to search for the one or more small cells periodically. In another solution the UE determines whether the UE has approached to one or more small cells based upon received location range information, broadcast from a macro base station, of alert zones of respective small cells and estimated location information of the UE, and if so, then the UE triggers a search for the one or more small cells periodically.
    Type: Application
    Filed: July 6, 2012
    Publication date: May 8, 2014
    Applicant: ALCATEL LUCENT
    Inventors: Chongxian Zhong, Pingping Wen, Jailin Zou, Tao Yang
  • Publication number: 20130114445
    Abstract: The invention proposes a method and an apparatus for transmitting a buffer status report in a wireless network, where a user equipment is configured with a plurality of component carriers, the user equipment obtains an amount of data to be transmitted after respective media access layer protocol data units corresponding to the respective component carriers are generated, generates the uplink buffer status report message according to the amount of data to be transmitted, and reports the uplink buffer status report message to a base station serving the user equipment. The invention address the problem of how to report buffer status information when there are a plurality of media access layer protocol data units in a transport time interval. With the solution of the invention, the base station can definitively know how many uplink resources can be allocated for the user equipment to guarantee more efficient scheduling.
    Type: Application
    Filed: May 3, 2010
    Publication date: May 9, 2013
    Applicant: ALCATEL LUCENT
    Inventors: Pingping Wen, Tao Yang
  • Publication number: 20130089058
    Abstract: A method and an apparatus for optimizing a user plan operation in a wireless communication system based on carrier aggregation are provided in the present invention. Firstly, a user equipment receives a downlink carrier component removal signaling from a base station, the downlink carrier component removal signaling is used to indicate a removed downlink carrier component; then, the user equipment, according to the received downlink carrier component removal signaling, stops the pending HARQ procedures of the removed downlink carrier component and flushes the HARQ receiving buffer related to the removed downlink carrier component and/or stops a re-ordering procedure and/or generates a status report and sends the status report to the base station, wherein the status report is used to indicate the base station to perform retransmission and inform the base station of the data needed to be retransmitted.
    Type: Application
    Filed: June 21, 2011
    Publication date: April 11, 2013
    Applicant: ALCATEL LUCENT
    Inventors: Tao Yang, Pingping Wen
  • Publication number: 20130089057
    Abstract: The invention proposes the method and device for delivery BSR information to assist efficient scheduling. It introduces at least one additional table (also called extended table) which indicates the buffer statues corresponding to the higher data rates than the existing table. The use of the at least one additional table is identified by new identification(s), more specifically one or more Logical channel ID. The signaling uses MAC layer signaling as in ReI.8/9. In an embodiment of the present invention, the new MAC CE is designed to guarantee the co-existence of ReI.8/9 and ReI.10 buffer status reporting depending on low or high data rates.
    Type: Application
    Filed: June 21, 2010
    Publication date: April 11, 2013
    Applicant: ALCATEL LUCENT
    Inventors: Chandrika Worrall, Pingping Wen
  • Patent number: 8345657
    Abstract: The present invention provides a method and corresponding device of processing and parsing a to-be-transmitted data packet in a communication network, such as a LTE system. A sub-header that is used for a header portion of a transmitted data packet is generated for each component data packet constituting the transmitted data packet, containing: original data packet ID for indicating an original data packet which the component data packet belongs to; segmentation processing ID for indicating times of segmentation happened to the original data packet in order to the component data packet, and a data segment which said component data packet belongs to after each segmentation; data amount IF for indicating a data amount of a data portion of the data packet. With the technical solution provided by the present invention, the header structure definition of a data packet is optimized, and the transmission resource utilization efficiency is improved.
    Type: Grant
    Filed: August 22, 2007
    Date of Patent: January 1, 2013
    Assignee: Alcatel Lucent
    Inventors: Tao Yang, Mingli You, Jin Liu, Pingping Wen
  • Publication number: 20120314603
    Abstract: The present application discloses a method and device for transmitting and receiving a power headroom report, wherein the method for transmitting a power headroom report comprises: forming, at a user equipment, a power headroom report specific to each carrier component; and transmitting the power headroom report to a base station. By implementing the method and device disclosed by the present application, a complete power headroom reporting mechanism can be provided to a LTE-A system having multiple new features. In addition, by receiving the power headroom report specific to each carrier component, the base station can further derive how many resource units need to be allocated to the user equipment, and a corresponding modulation and coding scheme so as to perform an effective resource scheduling and guarantee transmission quality of wireless links.
    Type: Application
    Filed: February 11, 2010
    Publication date: December 13, 2012
    Inventors: Pingping Wen, Lin Yang, Chongxian Zhong
  • Patent number: 8121083
    Abstract: The object of the present invention is to provide a reporting strategy for uplink scheduling request information in wireless telecommunication network. Above all, a method for the user equipment to report the uplink scheduling request information to the base station in wireless telecommunication network is disclosed. Firstly, the user equipment computes the overall service data amount of all radio bearers in each group of radio bearers in the buffer of the user equipment; then the user equipment only reports group-related information of triggered one or more groups of radio bearers to the base station. The present invention further proposes a method in the user equipment in wireless telecommunication network for reporting the emergency information to the base station, that is, the user equipment judges whether each radio bearer is in the emergency, and when one or more radio bearers are in the emergency, the user equipment sends emergency indication information to the base station.
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: February 21, 2012
    Assignee: Alcatel Lucent
    Inventors: Pingping Wen, Mingli You, Tao Yang, Jin Liu
  • Publication number: 20110300873
    Abstract: The present invention proposes a distributed probabilistic dynamic interference coordination scheme to decrease or eliminate inter-cell interference, wherein the mechanism of ALOHA is introduced into the dynamic interference coordination. According to the first aspect of the present invention, a resource scheduling method is proposed, comprising: selecting resource to be scheduled from a scheduling list; selecting a first user equipment to be scheduled from the scheduling list; allocating the selected resource to the first user equipment by probability of p, wherein 0?p?1, if the first user equipment is of edge user. The present invention further proposes a scheduler implementing the aforesaid resource scheduling method and a base station (BS) comprising the aforesaid scheduler.
    Type: Application
    Filed: February 24, 2009
    Publication date: December 8, 2011
    Inventors: Pingping Wen, Mingli You, Shaoquan Wu, Fanglei Sun
  • Publication number: 20110026467
    Abstract: The object of the present invention is to provide a reporting strategy for uplink scheduling request information in wireless telecommunication network. Above all, a method for the user equipment to report the uplink scheduling request information to the base station in wireless telecommunication network is disclosed. Firstly, the user equipment computes the overall service data amount of all radio bearers in each group of radio bearers in the buffer of the user equipment; then the user equipment only reports group-related information of triggered one or more groups of radio bearers to the base station. The present invention further proposes a method in the user equipment in wireless telecommunication network for reporting the emergency information to the base station, that is, the user equipment judges whether each radio bearer is in the emergency, and when one or more radio bearers are in the emergency, the user equipment sends emergency indication information to the base station.
    Type: Application
    Filed: August 21, 2007
    Publication date: February 3, 2011
    Applicant: Alcatel Lucent
    Inventors: Pingping Wen, Mingli You, Tao Yang, Jin Liu
  • Publication number: 20100008350
    Abstract: The present invention provides a method and corresponding device of processing and parsing a to-be-transmitted data packet in a communication network, such as a LTE system. A sub-header that is used for a header portion of a transmitted data packet is generated for each component data packet constituting the transmitted data packet, containing: original data packet ID for indicating an original data packet which the component data packet belongs to; segmentation processing ID for indicating times of segmentation happened to the original data packet in order to the component data packet, and a data segment which said component data packet belongs to after each segmentation; data amount IF for indicating a data amount of a data portion of the data packet. With the technical solution provided by the present invention, the header structure definition of a data packet is optimized, and the transmission resource utilization efficiency is improved.
    Type: Application
    Filed: August 22, 2007
    Publication date: January 14, 2010
    Inventors: Tao Yang, Mingli You, Jin Liu, Pingping Wen