Patents by Inventor Zhongji Hu
Zhongji Hu 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).
-
Method and apparatus for performing MBMS communications and method and apparatus for receiving MBMSs
Patent number: 10560812Abstract: Embodiments of the present invention provide a method and apparatus for performing MBMS service communications and a method and apparatus for receiving an MBMS service. Specifically, there is provided a method for performing MBMS service communications, comprising acquiring location area information of an MBMS service distribution; and notifying a UE of the location area information of the MBMS service distribution. Further, there is provided a method for receiving an MBMS service, comprising receiving location area information of an MBMS service distribution; comparing location information of a UE with the location area information of the MBMS service distribution; and determining whether to read an MCCH and MCCH information change notification based on a comparison result.Type: GrantFiled: March 28, 2012Date of Patent: February 11, 2020Assignee: Alcatel LucentInventors: Hua Chao, Zhongji Hu, He Wang, Philippe Godin -
Patent number: 10383047Abstract: The present invention relates to a method for establishing a service in a first frequency in a communication network, wherein the first frequency does not support the service or supports it in a limited way, the method comprises the following steps: determining the service to be established, re-selecting or redirecting to a second frequency that is suitable for the service, so as to carry out the service in the second frequency. The present invention also relates to user equipment and a network apparatus for establishing a service in a first frequency in a communication network, wherein the first frequency does not support the service or supports it in a limited way. According to the present invention, a non-MBMS service may be established in the MBMS dedicated frequency, so as to carry out the non-MBMS service in the normal frequency.Type: GrantFiled: April 17, 2007Date of Patent: August 13, 2019Assignee: ALCATEL LUCENTInventors: Pingping Xing, Zhongji Hu, Yu Chen, Hua Chao
-
Patent number: 9756680Abstract: Disclosed is a method and apparatus for generating a PDU and a base station thereof. The method for generating a PDU includes: segmenting an input SDU into at least one segmentation in such a manner that the at least one segmentation is distributed in at least one PDU; and setting an offset field and at least one length indicator field in a header of each PDU, wherein the offset field indicates an offset of a first segmentation of a first new SDU appearing in the PDU, and the length indicator field indicates the end of the new SDU or the segmentation of the new to SDU in the PDU. With the present invention, since a single SDU is indicated only using one LI even if it is segmented into a plurality of segmentations, and the LI indicates the end of SDU in one PDU, it is ensured that an eNB in the SFN can recover packets in case of multiple packets loss while avoiding de-synchronization during the contents transmission.Type: GrantFiled: March 21, 2008Date of Patent: September 5, 2017Assignee: Alcatel LucentInventors: Yonggang Wang, Zhongji Hu, He Wang
-
Patent number: 9232358Abstract: A method and apparatus for reusing a multicast broadcast single frequency network (MBSFN) subframe are disclosed. The method comprises configuring a policy of using unicast on a reused MBSFN subframe; and implementing the configured policy to reuse the MBSFN subframe. By using the above technical solution, it is enabled to implement transmitting unicast services on an MBSFN subframe while achieving a balance between power saving and implementation complexity, without affecting the existing protocol.Type: GrantFiled: March 26, 2010Date of Patent: January 5, 2016Assignee: Alcatel LucentInventors: Yu Chen, Yonggang Wang, Zhongji Hu
-
Patent number: 9054839Abstract: The present invention is related to integrated multi-datastream transmission technology, more particularly, to integrated multi-datastream modulation technology. According to one aspect of the present invention, there is provided a modulation equipment (10), including: a symbol integration means (101), configured to combine a first bit stream with a second bit stream to form a symbol to be modulated; a symbol mapping means (102), configured to map the symbol to be modulated into a QAM modulation symbol according to a set of predetermined mapping rules; wherein, in the set of predetermined mapping rules, multiple constellations corresponding to any first bit stream are located in at least two quadrants in the constellation diagram, while multiple constellations corresponding to any second bit stream are located in at least two quadrants in the constellation diagram. The integrated transmission of a first service data and a second service data (e.g.Type: GrantFiled: December 31, 2010Date of Patent: June 9, 2015Assignee: Alcatel LucentInventors: Hua Chao, Ji Li, Yonggang Wang, Zhongji Hu
-
Patent number: 9036534Abstract: The present invention provides a technical scheme for forwarding data packets from one or more user terminals in a relay station, and a technical scheme for decoding the multiple data packets from the user terminals in a base station. The relay station performs network encoding on copies of multiple user terminal packets from one or more user terminals to obtain a network encoded data packet and sends the data packet to the base station. The base station receives copies of multiple user terminal packets from one or more user terminals, respectively, and a network encoded data packets from the relay station, and performs joint soft combining and decoding on them.Type: GrantFiled: April 27, 2009Date of Patent: May 19, 2015Assignee: Alcatel LucentInventors: Ji Li, Yonggang Wang, Zhongji Hu
-
Patent number: 8983512Abstract: A method, a base station, a Multimedia Broadcast Multicast Service (MBMS) Coordination Entity (MCE), and a system for transmitting messages are provided. The method includes the steps of: defining a transmission order for different services in a service area; defining an arranging order of different messages in the same Transport Block (TB); generating and transmitting first messages carrying the transmission order for different services and the arranging order of different messages so as to synchronize contents of the first message TBs. According to the above technical solutions, the content synchronization of the MCCH RRC message TBs may be achieved.Type: GrantFiled: April 28, 2009Date of Patent: March 17, 2015Assignee: Alcatel LucentInventors: He Wang, Yu Chen, Zhongji Hu, Yonggang Wang
-
Patent number: 8964620Abstract: The invention provides a method and device for sending MBMS traffic data based on MBMS Cell Group, the method comprises the following steps: channel coding and modulating said MBMS traffic data; determining said MBMS cell group-specific scrambling code; determining said MBMS cell-specific scrambling code; scrambling said MBMS traffic data with said MBMS cell group-specific scrambling code, and adding reference signal scrambled with said MBMS cell group-specific scrambling code and reference signal scrambled with said MBMS cell-specific scrambling code; and sending scrambled MBMS reference signal and data. With the method and the corresponding device provided by the invention, it is easy to realize RF combining or RF combining and soft combining simultaneously at UE to obtain diversity gain.Type: GrantFiled: June 21, 2007Date of Patent: February 24, 2015Assignee: Alcatel LucentInventors: Yonggang Wang, Yu Chen, Hua Chao, Nan Wang, Zhongji Hu, Pingping Xing, He Wang
-
Patent number: 8879470Abstract: The present invention proposes a method, device and base station for cooperative beam forming based on MBMS fixed grid of beams GoB. The cooperative beam forming method comprises following steps: grouping users into cell central user group and cell edge user group (S701); performing cell central user group multiplexing based on superposition coding (S702); performing cooperative beam forming operation based on fixed grid of beams GoB for cell edge user group (S703).Type: GrantFiled: February 27, 2009Date of Patent: November 4, 2014Assignee: Alcatel LucentInventors: Bijun Zhang, He Wang, Zhongji Hu
-
Patent number: 8774820Abstract: The present invention provides a method and device for allocating same resource for a plurality of eNBs of collaborative Multiple-input-Multiple-output (MIMO). Wherein a serving eNB firstly determines, in the one or more other eNBs, at least one candidate eNB recommended to cooperate with the serving eNB, according to measurement report reported by mobile stations or according to report information of the recommended candidate eNB reported by mobile station, then obtains resource related information of the at least one candidate eNB, then determines one or more collaborative eNBs from the at least one candidate eNB according to the resource related information, and allocates corresponding communication resources for the serving eNB and the one or more collaborative eNBs.Type: GrantFiled: March 12, 2009Date of Patent: July 8, 2014Assignee: Alcatel LucentInventors: He Wang, Zhongji Hu
-
Patent number: 8730937Abstract: The object of the present invention is to provide a method and an apparatus for performing synchronization among neighboring base stations in the wireless communication network. According to the technical solution of the present invention, a base station turns off a transmitter randomly to receive a synchronization signal from neighboring base stations, and obtains a new local synchronization reference time based on the synchronization reference time of other neighboring base station. With the apparatus and the method provided by the present invention, the strongly robust synchronization among base stations is realized.Type: GrantFiled: July 16, 2007Date of Patent: May 20, 2014Assignee: Alcatel LucentInventors: Yonggang Wang, Zhongji Hu, Yu Chen
-
METHOD AND APPARATUS FOR PERFORMING MBMS COMMUNICATIONS AND METHOD AND APPARATUS FOR RECEIVING MBMSS
Publication number: 20140022976Abstract: Embodiments of the present invention provide a method and apparatus for performing MBMS service communications and a method and apparatus for receiving an MBMS service. Specifically, there is provided a method for performing MBMS service communications, comprising acquiring location area information of an MBMS service distribution; and notifying a UE of the location area information of the MBMS service distribution. Further, there is provided a method for receiving an MBMS service, comprising receiving location area information of an MBMS service distribution; comparing location information of a UE with the location area information of the MBMS service distribution; and determining whether to read an MCCH and MCCH information change notification based on a comparison result.Type: ApplicationFiled: March 28, 2012Publication date: January 23, 2014Applicant: ALCATEL LUCENTInventors: Hua Chao, Zhongji Hu, He Wang, Philippe Godin -
Publication number: 20130184013Abstract: The present invention proposes a new method, a network device, and a terminal device of paging a terminal device in a communication system. The receiving a paging initiation present invention determines the paged object based on the group ID and/or the device ID of the paged terminal device, further, defines a specific paging occasion for the terminal device having group function; at the specific paging occasion paging message comprising the group ID and/or the device ID of the paged terminal device is sent; further, paging reason is inserted into the paging message; wherein the terminal device receives the paging message at the specific paging occasion defined by the system; and further reads the paging reason and responds accordingly to complete the paging procedure after the group ID and/or the device ID of its own is read. This paging mechanism of this invention solves the problem of paging determining a paging a group of terminal devices.Type: ApplicationFiled: September 14, 2011Publication date: July 18, 2013Applicant: ALCATEL LUCENTInventors: Hua Chao, Yonggang Wang, He Wang, Zhongji Hu
-
Patent number: 8472364Abstract: The present invention provides a user equipment (UE), comprising: first receiving means for receiving on a first carrier information for determining a second carrier and a Multimedia Broadcast/Multicast Service (MBMS) notification; second receiving means for receiving Radio Bearer (RB) configuration information and MBMS scheduling information on the second carrier determined from the information; and control means for generating an MBMS scheduling template based on the received RB configuration information and MBMS scheduling information, wherein, the second receiving means receives MBMS data based on the MBMS scheduling template.Type: GrantFiled: August 20, 2007Date of Patent: June 25, 2013Assignee: Alcatel LucentInventors: Zhongji Hu, Yonggang Wang, Yu Chen, Pingping Xing
-
Patent number: 8451764Abstract: The present invention discloses a system structure for supporting Evolved Multimedia Broadcast/Multicast Service (Evolved MBMS), comprising: a Broadcast/Multicast Service Center (BM-SC) for initiating control signaling and bearer services for Multimedia Broadcast/Multicast Service (MBMS); a System Architecture Evolved Gateway (SAE GW) for receiving MBMS service data and MBMS control signaling or service data from another network, and forwarding the received service data and control signaling; a Broadcast/Multicast Management Entity (BME) for receiving, processing and forwarding the MBMS control signaling, and determining, for each item of the service data for MBMS, an enhanced Node B (eNB) which needs to receive the control signaling; and an multicast User Plane Entity (mUPE) for receiving the MBMS service data, processing the received MBMS service data in Evolved Packet System Architecture Evolution, and forwarding the processed MBMS service data to a downstream node.Type: GrantFiled: March 20, 2008Date of Patent: May 28, 2013Assignee: Alcatel LucentInventors: Hua Chao, Zhongji Hu, He Wang, Yonggang Wang
-
Patent number: 8437371Abstract: Discloses is a gateway, base station, communication network and synchronization method thereof. The method comprises: at time T1, sending from the gateway to the base stations a synchronization request signal; at time T2, receiving by the base stations the synchronization request signal; at time T3, sending from the base stations to the gateway the synchronization response comprising the times T2 and T3; at time T4, receiving by the gateway the synchronization response signals; and calculating for the base stations a mapping relationship between the time system of the gateway and the time system of the base station is calculated based on the times T1, T2, T3 and T4.Type: GrantFiled: August 22, 2007Date of Patent: May 7, 2013Assignee: Alcatel LucentInventors: He Wang, Zhongji Hu, Yonggang Wang, Hua Chao, Yu Chen, Pingping Xing
-
Publication number: 20130010672Abstract: A method and apparatus for reusing a multicast broadcast single frequency network (MBSFN) subframe are disclosed. The method comprises configuring a policy of using unicast on a reused MBSFN subframe; and implementing the configured policy to reuse the MBSFN subframe. By using the above technical solution, it is enabled to implement transmitting unicast services on an MBSFN subframe while achieving a balance between power saving and implementation complexity, without affecting the existing protocol.Type: ApplicationFiled: March 26, 2010Publication date: January 10, 2013Applicant: ALCATEL LUCENTInventors: Yu Chen, Yonggang Wang, Zhongji Hu
-
Patent number: 8345610Abstract: Disclosed is a method for mapping pilot signals in a multiplexing mode of unicast service and Multimedia Broadcast/Multicast Service (MBMS). The method comprises the steps of: generating pilot symbols for the unicast service and the MBMS service, respectively; mapping the pilot symbols for the MBMS service to multiple transmit antennas such that, in a subframe, the pilot symbols for the MBMS service for each antenna are arranged in a same time domain and adjacent to each other, the pilot symbols for the MBMS service for the same transmit antenna are spaced from each other by a predetermined number of subcarriers in the frequency domain and by a predetermined number of OFDM symbols in the time domain, and the pilot symbols for the MBMS service for the same transmit antenna are arranged in a staggered form along the time domain, and mapping the pilot symbols for the unicast service at the same time.Type: GrantFiled: June 18, 2007Date of Patent: January 1, 2013Assignee: Alcatel LucentInventors: Bijun Zhang, Yu Chen, Zhongji Hu, Yonggang Wang
-
Publication number: 20120300691Abstract: The present invention is related to integrated multi-datastream transmission technology, more particularly, to integrated multi-datastream modulation technology. According to one aspect of the present invention, there is provided a modulation equipment (10), including: a symbol integration means (101), configured to combine a first bit stream with a second bit stream to form a symbol to be modulated; a symbol mapping means (102), configured to map the symbol to be modulated into a QAM modulation symbol according to a set of predetermined mapping rules; wherein, in the set of predetermined mapping rules, multiple constellations corresponding to any first bit stream are located in at least two quadrants in the constellation diagram, while multiple constellations corresponding to any second bit stream are located in at least two quadrants in the constellation diagram. The integrated transmission of a first service data and a second service data (e.g.Type: ApplicationFiled: December 31, 2010Publication date: November 29, 2012Applicant: ALCATEL LUCENTInventors: Hua Chao, Ji Li, Yonggang Wang, Zhongji Hu
-
Patent number: 8320290Abstract: The present invention provides an Evolved Multimedia Broadcast/Multicast Service (EMBMS) access gateway supporting network multicast, comprising: receiving/responding means for receiving a Multimedia Broadcast/Multicast Service (MBMS) Session Start message from a Broadcast/Multicast-Service Center (BM-SC) and for returning a response message to the BM-SC after receiving the MBMS Session Start message; storage means for storing a mapping relationship between respective MBMS service areas (SAs) and respective base stations; determining means for determining base station(s) associated with the MBMS based on the stored mapping relationship when the receiving/responding means receives the MBMS Session Start message; and transmitting means for transmitting the MBMS Session Start message to the determined bases station(s).Type: GrantFiled: August 21, 2007Date of Patent: November 27, 2012Assignee: Alcatel LucentInventors: Hua Chao, Yonggang Wang, Yu Chen, He Wang, Zhongji Hu