Patents by Inventor Xiaoan Fan
Xiaoan Fan 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).
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Publication number: 20160338029Abstract: A method for encoding acknowledgement information includes: receiving a component carrier, where the component carrier includes at least one downlink subframe; generating acknowledgement information bits corresponding to the component carrier according to the received component carrier; dividing the acknowledgement information bits into two groups so that each group includes at least one acknowledgement information bit, where the at least one acknowledgement information bit corresponds to physical downlink shared channel PDSCH transmission, and/or downlink control information DCI, where the DCI is used for indicating downlink semi-persistent scheduling SPS release; and encoding the two divided groups of acknowledgement information bits to obtain two groups of codeword bits, respectively, and generating, from the two groups of codeword bits obtained by the encoding, total codeword bits to be transmitted.Type: ApplicationFiled: July 29, 2016Publication date: November 17, 2016Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Xiaoan FAN, Yongxia LV, Xiaofeng CHEN
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Patent number: 9491747Abstract: Disclosed are a method, a base station and a user equipment for subframe configuration in a time division duplex system. The method comprises: a base station determining a subframe number of a flexible subframe in a radio frame; the base station determining a feature of the flexible subframe corresponding to the subframe number, where the feature indicates that the flexible subframe is an uplink subframe or a downlink subframe; and the base station sending to a user equipment a first signaling via a downlink control channel, where the first signaling includes the feature of the flexible subframe corresponding to the subframe number.Type: GrantFiled: September 30, 2013Date of Patent: November 8, 2016Assignee: Huawei Technologies Co., Ltd.Inventors: Chaojun Li, Yongxia Lv, Xiaoan Fan
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Publication number: 20160262172Abstract: A data transmission method and user equipment is provides. The method includes: sending, by user equipment (UE), auxiliary scheduling information to a first part of or all of network side devices, an uplink transmission state of the UE is determined according to the auxiliary scheduling information, and perform scheduling on the UE according to the uplink transmission state of the UE, where the uplink transmission state is a first uplink transmission state in which uplink data can be simultaneously transmitted on an uplink carrier corresponding to all of the network side devices, or is a second uplink transmission state in which uplink data can be simultaneously transmitted on an uplink carrier corresponding to a second part of the network side devices; and transmitting, by the UE, data according to scheduling information of the second part of or all of the network side devices.Type: ApplicationFiled: May 12, 2016Publication date: September 8, 2016Inventors: Zhiyu Yan, Xiaoan Fan, Sha Ma, Qiang Li
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Patent number: 9408203Abstract: A method for encoding acknowledgement information includes: receiving a component carrier, where the component carrier includes at least one downlink subframe; generating acknowledgement information bits corresponding to the component carrier according to the received component carrier; dividing the acknowledgement information bits into two groups so that each group includes at least one acknowledgement information bit, where the at least one acknowledgement information bit corresponds to physical downlink shared channel PDSCH transmission, and/or downlink control information DCI, where the DCI is used for indicating downlink semi-persistent scheduling SPS release; and encoding the two divided groups of acknowledgement information bits to obtain two groups of codeword bits, respectively, and generating, from the two groups of codeword bits obtained by the encoding, total codeword bits to be transmitted.Type: GrantFiled: July 17, 2013Date of Patent: August 2, 2016Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Xiaoan Fan, Yongxia Lv, Xiaofeng Chen
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Publication number: 20160173260Abstract: The application relates to radio communications and discloses a method and apparatus for feeding back and receiving acknowledgment (ACK) information of semi-persistent scheduling (SPS) data packets. The method includes receiving downlink data packets and an uplink data assignment indicator (UL DAI) from a base station, wherein a value of the UL DAI indicates a number (N) of all scheduled downlink sub-frames which scheduled by the base station for the user equipment, the number N is greater than 1, and a number k (k<N) of the downlink data packets is/are semi-persistent scheduling (SPS) data packets; forming a feedback signal comprising N acknowledgements/negative acknowledgements (ACKs/NAKs) acknowledging the N downlink data packets, k ACKs/NAKs of the k SPS data packets is/are placed from (N?k+1)th to Nth positions of the N ACKs/NAKs; and sending the feedback signal to the base station starting from the ACK/NAK at the first position.Type: ApplicationFiled: December 8, 2015Publication date: June 16, 2016Applicant: HUAWEI TECHNOLOGIES CO.,LTD.Inventors: Xiaoan Fan, Guang Liu, Bo Li, Yunzhe Hou
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Publication number: 20160157196Abstract: A method and device for sending a synchronization signal and a method and device for synchronization between base stations, include: determining, by a synchronization source base station according to a synchronization level of the synchronization source base station, a resource for sending an NLRS for clock synchronization between base stations, and according to the determined resource. In this way, one NLRS for clock synchronization between base stations is configured on each synchronization source base station, and the NLRS is sent on a resource determined according to a synchronization level, so that a synchronization base station that acquires the NLRS can determine the synchronization level of the synchronization source base station according to a resource for sending the NLRS.Type: ApplicationFiled: January 12, 2016Publication date: June 2, 2016Applicant: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Yuan Xia, Juan Zheng, Xiaoan Fan, Sha Ma, Qiang Li
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Patent number: 9337989Abstract: Embodiments of the present disclosure related to a method for configuring a transmission resource, a related device, and a communication system. The method for configuring a transmission resource includes: notifying, by an access device, a user equipment of an uplink-downlink configuration change period, where the uplink-downlink configuration change period is less than a system message change period; and sending, by the access device, a first message to the user equipment, where the first message carries an uplink-downlink configuration indication corresponding to the uplink-downlink configuration change period, so that the user equipment updates, according to the uplink-downlink configuration indication, an uplink-downlink configuration used by the user equipment. The solutions according to the embodiments of the present disclosure help to improve flexibility for configuring a transmission resource and a utilization rate of a frequency spectrum resource.Type: GrantFiled: March 31, 2014Date of Patent: May 10, 2016Assignee: Huawei Technologies Co., Ltd.Inventors: Yang Li, Chaojun Li, Xiaobo Chen, Xiaoan Fan
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Patent number: 9240875Abstract: The application relates to radio communications and discloses a method and apparatus for feeding back and receiving acknowledgment (ACK) information of semi-persistent scheduling (SPS) data packets. The method includes receiving downlink data packets and an uplink data assignment indicator (UL DAI) from a base station, wherein a value of the UL DAI indicates a number (N) of all scheduled downlink sub-frames which scheduled by the base station for the user equipment, the number N is greater than 1, and a number k (k<N) of the downlink data packets is/are semi-persistent scheduling (SPS) data packets; forming a feedback signal comprising N acknowledgements/negative acknowledgements (ACKs/NAKs) acknowledging the N downlink data packets, k ACKs/NAKs of the k SPS data packets is/are placed from (N?k+1)th to Nth positions of the N ACKs/NAKs; and sending the feedback signal to the base station starting from the ACK/NAK at the first position.Type: GrantFiled: October 18, 2013Date of Patent: January 19, 2016Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Xiaoan Fan, Guang Liu, Bo Li, Yunzhe Hou
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Patent number: 9215688Abstract: The present invention discloses a data transmission method, base station and terminal. The method comprises: transmitting, in every subframe used for transmitting multimedia broadcast multicast service (MBMS), n transport blocks (TBs) to terminals, and transmitting to the terminals the correspondence between the MBMS corresponding to each TB in the subframe and the TB serial number of each TB in the subframe; wherein n is an integer greater than one, a period of time occupies in every subframe by the TBs corresponding to same MBMS is same, and each TB in the subframe corresponds to a unique TB serial number. The present invention can transmit two or more TBs to terminals in every subframe, and the TBs transmitted in the subframe can correspond to different MBMSs, thereby realizing the transmission of TBs corresponding to a plurality of MBMSs in a subframe and improving the spectrum effectiveness of the data transmission.Type: GrantFiled: December 7, 2012Date of Patent: December 15, 2015Assignee: Huawei Technologies Co., Ltd.Inventors: Arnaud Meylan, Xiaoan Fan, Junhui Zhao
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Publication number: 20150327225Abstract: Disclosed are a method for sending control information, a base station, and a user equipment (UE). Taking implementation of the method as an example, the method comprises: a base station determining a first subframe and a second subframe, wherein the first subframe is a subframe having a control region, and the second subframe is a subframe with no control region; and the base station sending control information to a UE in the control region of the first subframe, and sending a data signal and/or an enhanced physical downlink control channel (ePDCCH) on the second subframe to the UE. By means of this solution, the first subframe has a control region, the second subframe does not have a control region, and not all the subframes have a control region; therefore, the system overhead is reduced.Type: ApplicationFiled: July 17, 2015Publication date: November 12, 2015Inventors: Liang XIA, Yuan XIA, Xiaoan FAN, Sha MA, Qiang LI, Lei GUAN
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Publication number: 20150237626Abstract: Embodiments of the present invention provide an information transmission method, including: determining, by a user equipment (UE), a first subframe; configuring the UE to send a first uplink signal in the first subframe; determining, by the UE, that the first uplink signal is a first type of uplink signal, where the first type of uplink signal occupies a first part of symbols of the first subframe, and the number of symbols included in the first part of symbols is less than the number of symbols included in the first subframe; and detecting, by the UE, a downlink control channel on a second part of symbols in the first subframe, where the first part of symbols and the second part of symbols do not overlap in time domain.Type: ApplicationFiled: May 1, 2015Publication date: August 20, 2015Inventors: Bo Li, Lei Guan, Xiaoan Fan
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Publication number: 20150229453Abstract: A method and an apparatus for transmitting a reference signal is provided, and flexibly configuration of resource used for bearing the RS may be implemented. The method includes: selecting, by a first point device, a first frequency domain resource used for bearing a first reference signal RS from a first carrier, wherein the first carrier is used for data transmission and/or measurement between the first point device and a user equipment, and a number of a resource unit included in the first frequency domain resource is smaller than a system bandwidth of the first carrier; and transmitting the first RS to the user equipment through the first frequency domain resource.Type: ApplicationFiled: April 24, 2015Publication date: August 13, 2015Inventors: Xizeng DAI, Xiaoan Fan, Xingqing Cheng, Zuomin Wu, Jianbing Yang
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Publication number: 20150172951Abstract: This application provides a processing method for channel measurement, a base station, and a user equipment, where the method includes: receiving an interference report from a user equipment; and determining, according to the interference report, at least two measurement sets for the user equipment, and notifying the at least two measurement sets to the user equipment. In this application, a measurement set is determined according to an interference report reported by a user equipment, so that the determined measurement set is more adaptive to a current interference situation of the user equipment, and then channel quality of a subframe of the user equipment can be measured accurately.Type: ApplicationFiled: February 24, 2015Publication date: June 18, 2015Inventors: Xiaobo Chen, Qiang Li, Xiaoan Fan, Weimin Xiao
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Publication number: 20150163750Abstract: The present invention provides a method and an apparatus for controlling uplink power of a user equipment, where the method includes: separately acquiring first maximum transmit power of the user equipment corresponding to a first subframe and second maximum transmit power of the user equipment corresponding to a second subframe; and when the first maximum transmit power and the second maximum transmit power are different, using a minimum value of the first maximum transmit power and the second maximum transmit power as first configured maximum transmit power, and performing power control over transmit power of multiple carriers in an overlap region according to the first configured maximum transmit power, so that total transmit power of the multiple carriers in the overlap region after the power control is lower than or equal to the minimum value of the first maximum transmit power and the second maximum transmit power.Type: ApplicationFiled: February 20, 2015Publication date: June 11, 2015Inventors: Xingwei Zhang, Xiaoan Fan, Lixia Xue
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Publication number: 20150063280Abstract: The present invention provides a method and a device for data transmission. The method includes: according to a preconfigured second table, selecting a TBS value, where the second table is used for describing a corresponding relationship among a TBS value, the number of RBs and a TBS index, the number of RBs corresponding to the selected TBS value is smaller than or equal to a specific value, a modulation mode corresponding to a TBS index which corresponds to the selected TBS value is QPSK, and the selected TBS value is capable of satisfying the rate requirement required during transmission time interval TTI bundling transmission; and according to the selected TBS value, transmitting data carried by a PUSCH using bundled TTIs. The embodiments of the present invention can improve the coverage at a PUSCH medium data rate.Type: ApplicationFiled: November 10, 2014Publication date: March 5, 2015Inventors: Fang Nan, Qiang Wu, Xiaoan Fan
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Publication number: 20150055543Abstract: A method and device for service time division multiplexing as well as a method and a device for transmitting service are disclosed. The method for service time division multiplexing includes selecting a part or all of radio frames in one time unit as specific radio frames; and selecting a part or all of subframes in the specific radio frames as specific subframes for sending a specific service. The specific service is a multimedia broadcast multicast service, or a unicast service, or one or more than one kind of services transmitted in broadcast or multicast mode.Type: ApplicationFiled: September 8, 2014Publication date: February 26, 2015Applicant: HUAWEI TECHNOLOGIES CO., LTDInventors: Junwei WANG, Xiaoan FAN, Jianghua LIU
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Publication number: 20140314014Abstract: An uplink transmission power control method and a user equipment are provided, where the method includes: determining, by a UE, whether uplink channels are simultaneously transmitted over adjacent subframes between multiple carriers; where the adjacent subframes between the multiple carriers are partially overlapped; and timing advance values of the multiple carriers are different; and if uplink channels are simultaneously transmitted over adjacent subframes between multiple carriers, processing, by the user equipment, an uplink channel transmitted over the last symbol on a partially overlapped subframe of another carrier except a carrier having the greatest timing advance value, so that total transmission power of the uplink channels is lower than the maximum transmission power or an interference level of the user equipment.Type: ApplicationFiled: June 19, 2014Publication date: October 23, 2014Inventors: Xingwei ZHANG, Junren CHANG, Yuhua CHEN, Xiaoan FAN, Bo LI, Yan CHENG, Yuanjie LI
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Patent number: 8837455Abstract: A method and device for service time division multiplexing as well as a method and a device for transmitting service are disclosed. The method for service time division multiplexing includes: selecting a part or all of radio frames in one time unit as specific radio frames; and selecting a part or all of subframes in the specific radio frames as specific subframes for sending a specific service. The specific service is a multimedia broadcast multicast service, or a unicast service, or one or more than one kind of services transmitted in broadcast or multicast mode.Type: GrantFiled: February 24, 2012Date of Patent: September 16, 2014Assignee: Huawei Technologies Co., LtdInventors: Junwei Wang, Xiaoan Fan, Jianghua Liu
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Publication number: 20140247758Abstract: Embodiments of the present disclosure related to a method for configuring a transmission resource, a related device, and a communication system. The method for configuring a transmission resource includes: notifying, by an access device, a user equipment of an uplink-downlink configuration change period, where the uplink-downlink configuration change period is less than a system message change period; and sending, by the access device, a first message to the user equipment, where the first message carries an uplink-downlink configuration indication corresponding to the uplink-downlink configuration change period, so that the user equipment updates, according to the uplink-downlink configuration indication, an uplink-downlink configuration used by the user equipment. The solutions according to the embodiments of the present disclosure help to improve flexibility for configuring a transmission resource and a utilization rate of a frequency spectrum resource.Type: ApplicationFiled: March 31, 2014Publication date: September 4, 2014Applicant: Huawei Technologies Co., Ltd.Inventors: Yang LI, Chaojun LI, Xiaobo CHEN, Xiaoan FAN
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Patent number: 8761067Abstract: The present invention discloses a method and an apparatus for notification of emitted energy. The method includes: performing an emitted energy decrease on resource elements in a current cell that have a same time-frequency location as part or all of resource elements where a reference signal of a neighboring cell is located; obtaining an emitted energy parameter of an energy non-decreased resource element (NRE) in the current cell according to a decreased amount of emitted energy of an emitted energy decreased resource element (DRE); and notifying the emitted energy parameter of the NRE to a user equipment (UE). According to embodiments of the present invention, the waste of emitted energy may be avoided, the emitted energy of part of REs is increased, and further, the signal to interference plus noise ratio (SINR) and throughput of service data may be increased.Type: GrantFiled: May 11, 2012Date of Patent: June 24, 2014Assignee: Huawei Technologies Co., Ltd.Inventors: Xiaotao Ren, Lei Wan, Zhiyu Yan, Yajun Zhao, Xiaoan Fan