Patents by Inventor Yan Cheng

Yan Cheng 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: 20180102881
    Abstract: Embodiments of this application disclose an information sending or receiving method at user equipment, which includes: determining a frame structure of a serving cell, where a radio frame corresponding to the frame structure includes at least one downlink subframe, at least one uplink subframe, and at least one special subframe, and the special subframe is a first special subframe or a second special subframe; and sending or receiving information in the serving cell based on the frame structure, where the special subframe includes a symbol used for downlink transmission, a guard period, and a symbol used for uplink transmission, a quantity of symbols used for downlink transmission is greater than a quantity of symbols used for uplink transmission in the first special subframe, and a quantity of symbols used for downlink transmission is less than a quantity of symbols used for uplink transmission in the second special subframe.
    Type: Application
    Filed: December 10, 2017
    Publication date: April 12, 2018
    Inventors: Yan CHENG, Lixia Xue, Bingyu Qu, Yongxing Zhou, Weihua Liu
  • Publication number: 20180102875
    Abstract: A method, an apparatus, and a system for transmitting information bits, where the method for transmitting information bits includes: dividing the information bits to be transmitted into at least two groups; encoding the information bits to be transmitted in each group; modulating the coded bits obtained by the encoding to obtain modulation symbols, in which each modulation symbol is obtained by using the modulation of the coded bits in the same group; and mapping and transmitting the modulation symbols. In this way, the receiving end easily reduces the algorithm complexity, thereby ensuring the performance of the receiving end.
    Type: Application
    Filed: December 11, 2017
    Publication date: April 12, 2018
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Xiaofeng CHEN, Yongxia LV, Yan CHENG
  • Publication number: 20180091208
    Abstract: The present disclosure relates to a method for reporting channel state information, a user equipment, and a base station. A channel state information measurement resource is determined by a UE according to an aperiodic CSI trigger signaling, so that a base station transmits a CSI-RS only when the UE needs to report the aperiodic CSI. Compared with transmitting a periodic CSI-RS by an existing base station, unnecessary transmitting of the CSI-RS is reduced, and energy of the base station such as an eNB is saved; and reducing the CSI-RS transmission may reduce resources occupied by the CSI-RS, thereby improving the spectrum efficiency of the system. In addition, reducing unnecessary CSI-RS transmission allows the interference in other cells by the base station being reduced; finally, CSI measurement resources are reserved only when the CSI needs to be fed back, the cost occupied by the CSI measurement resources is reduced.
    Type: Application
    Filed: November 30, 2017
    Publication date: March 29, 2018
    Inventors: David jean-marie Mazzarese, Yongxing ZHOU, Yan CHENG
  • Publication number: 20180084543
    Abstract: The present invention discloses a method and a device for transmitting information on a physical uplink control channel (PUCCH). The method includes the following steps: a user equipment (UE) selects information from channel state information (CSI) to transmit (S1); the information selected from the CSI is transmitted on the PUCCH with one or both of hybrid automatic retransmission acknowledgment information and a scheduling request (S2), which enables a base station to obtain not only the information in the CSI but also one or both of the hybrid automatic retransmission acknowledgement information and the scheduling request from the PUCCH. The present invention avoids the problem of system downlink throughput degradation caused by dropping all CSI by the UE in the prior art, and avoids the problem that system downlink throughput is influenced by unnecessary data retransmission on a downlink carrier caused by ACK/NACK bundling among carriers.
    Type: Application
    Filed: November 29, 2017
    Publication date: March 22, 2018
    Inventors: Yongxia LV, Yan CHENG
  • Publication number: 20180083755
    Abstract: A resource mapping method and an apparatus are provided relating to the communications field, the solutions capable of flexibly implementing resource mapping of a channel or a signal. In one example implementation, first information is obtained that is used to indicate a cyclic shift start resource block location or a cyclic shift end resource block location for resource mapping of a first channel or a first signal in a resource block cyclic shift manner in a bandwidth used by user equipment. A resource mapping location of the first channel or the first signal in the bandwidth used by the user equipment is determined according to the resource block cyclic shift manner and the first information. The first channel or the first signal is received or sent at the resource mapping location. The resource mapping method and the apparatus are used to map a resource.
    Type: Application
    Filed: November 28, 2017
    Publication date: March 22, 2018
    Inventors: Lixia XUE, Jingyuan SUN, Yan CHENG
  • Publication number: 20180077701
    Abstract: A method for transmitting and receiving Uplink Control Information (UCI), a terminal, and a base station are provided. The transmitting method includes: calculating the number (Q?) of modulation symbols occupied by the UCI to be transmitted; dividing the information bit sequence of the UCI to be transmitted into two parts; using Reed Muller (RM) (32, 0) codes to encode each part of information bit sequence of the UCI to be transmitted to obtain a 32-bit coded bit sequence respectively, and performing rate matching so that the rate of the first 32-bit coded bit sequence ?Q?/2?×Qm bits and that the rate of the second 32-bit boded bit sequence is (Q???Q?/2?)×Qm bits; and mapping the two parts of coded bit sequences that have undergone rate matching onto a Public Uplink Shared Channel (PUSCH), and transmitting the coded bit sequences to a base station.
    Type: Application
    Filed: November 21, 2017
    Publication date: March 15, 2018
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Yan CHENG, Yongxia LYU
  • Publication number: 20180069622
    Abstract: The present invention discloses a method, including: determining, by first user equipment, a frame structure of a first serving cell; and sending and receiving, by the first user equipment in the first serving cell, information based on the frame structure of the first serving cell, where: in the frame structure of the first serving cell, one radio frame includes at least one first subframe and at least one second subframe, and both the first subframe and the second subframe include a symbol used for downlink transmission, a guard period, and a symbol used for uplink transmission; in the first subframe, a quantity of symbols used for downlink transmission is greater than a quantity of symbols used for uplink transmission; and in the second subframe, a quantity of symbols used for downlink transmission is less than a quantity of symbols used for uplink transmission.
    Type: Application
    Filed: November 14, 2017
    Publication date: March 8, 2018
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Yan CHENG, Lixia XUE
  • Patent number: 9913227
    Abstract: Embodiments of the present invention provide a power determining method, a user equipment, and a base station. The method includes: determining an initial transmit power of each transmission object in a transmission object set; when a sum of initial transmit powers of all the transmission objects in the transmission object set is greater than a maximum transmit power, performing a power reduction operation based on a priority sequence of information corresponding to the transmission objects, so as to acquire an available transmit power of each transmission object in the transmission object set, where a sum of available transmit powers of all the transmission objects in the transmission object set is not greater than the maximum transmit power; and sending each transmission object in the transmission object set according to the available transmit power corresponding to each transmission object in the transmission object set.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: March 6, 2018
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Yan Cheng, Zhiyu Yan
  • Publication number: 20180062817
    Abstract: The present invention relates to the field of mobile communications technologies, and in particular, to a method for sending and receiving information. The user equipment in embodiments of the present invention may determine a frame structure of a serving cell, where in addition to an uplink subframe and a downlink subframe, the frame structure in the embodiments of the present invention further includes a first subframe, and the first subframe includes a first symbol used for downlink transmission, a first GP, and a second symbol used for uplink transmission. More symbols used for downlink transmission and more symbols used for uplink transmission than those in a frame structure in the prior art are introduced by introducing the first subframe, thereby improving downlink transmission and effectively reducing a value of k, that is, reducing a service delay in feeding back a HARQ-ACK.
    Type: Application
    Filed: October 30, 2017
    Publication date: March 1, 2018
    Inventors: Yan CHENG, Lixia XUE, Bingyu QU
  • Publication number: 20180062813
    Abstract: Embodiments of the present invention provide a channel-state information process processing method, a network device, and a user equipment, where the channel-state information process processing method includes: after receiving a first channel-state information CSI request sent by a first network device, if CSI corresponding to multiple aperiodic CSI processes has not been reported by a user equipment, dropping CSI corresponding to a part of aperiodic CSI processes among the multiple aperiodic CSI processes, where each CSI process is associated with a channel measurement resource and an interference measurement resource. A problem existing after a CoMP technology is introduced can be solved that the UE cannot implement processing of multiple CSI processes.
    Type: Application
    Filed: November 3, 2017
    Publication date: March 1, 2018
    Inventors: Jingyuan SUN, David jean-marie MAZZARESE, Yongxing ZHOU, Liang XIA, Xiaotao REN, Yan CHENG
  • Patent number: 9897737
    Abstract: A quantum dot backlight module is disclosed. The quantum dot backlight module comprises a light source; a quantum dot layer, which emits fluorescence after being excited by light that is emitted by the light source; and a light guide plate, which guides the fluorescence that is emitted by the quantum dot layer to a needed direction, wherein the quantum dot layer is arranged on a light-entering side of the light guide plate, and a colloid layer is arranged between the light source and the quantum dot layer so as to enable the light source and the quantum dot layer to be bonded with each other closely, whereby the light source, the quantum dot layer, and the light guide plate are assembled together.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: February 20, 2018
    Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd.
    Inventor: Yan Cheng
  • Publication number: 20180041322
    Abstract: A downlink channel decoding method, a downlink information transmission method, a user equipment, and a base station are provided. The downlink channel decoding method includes: determining, by a user equipment, a resource unit occupied by a DMRS; and decoding a downlink channel based on the DMRS transmitted on the resource unit. The present invention can enable different DMRS patterns to concurrently exist on an NCT carrier. In a downlink transmission process, a DMRS pattern used for downlink transmission is determined according to priorities of different channels and/or signals, which can ensure optimal performance of a high-priority channel and/or signal, and can further improve downlink transmission performance.
    Type: Application
    Filed: October 13, 2017
    Publication date: February 8, 2018
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Yan Cheng, Yongxing Zhou, Lixia Xue, Brian Classon
  • Publication number: 20180041064
    Abstract: A charging circuit for providing a charge current sent to a battery is disclosed. The charging circuit includes a linear regulator for converting a power voltage into a first indication voltage; a voltage divider circuit for generating a frequency response to convert the first indication voltage into a second indication voltage; and a charger for providing the charge current sent to the battery when the second indication voltage is within a sensible range, wherein the power voltage is within a broad voltage range, and the first indication voltage is fixed.
    Type: Application
    Filed: January 18, 2017
    Publication date: February 8, 2018
    Inventors: Ying-Tzu Chou, Chih-Nan Peng, Yan-Cheng Pan
  • Publication number: 20180031754
    Abstract: A light guide plate includes a flat plate body and multiple protrusion platforms. The flat plate body includes a top surface and a bottom surface. The multiple protrusion platforms are disposed on the bottom surface. A protrusion surface of each protrusion platform is formed by multiple pyramids. A backlight module and a liquid crystal display are also disclosed. After lights emitting from the light source and entering the light guide plate irradiates the protrusion platform, a total reflection of the lights will be broken. Accordingly, a portion of lights emit out from the top surface, the other portion of the lights emit out from the bottom surface and be reflected back to the light guide plate. The protrusion platforms can replace the mesh dot and the reflective sheet to reduce a thickness of the backlight module to increase a light utilization rate, reduce the manufacturing process and production cost.
    Type: Application
    Filed: January 19, 2016
    Publication date: February 1, 2018
    Applicant: Wuhan China Star Optoelectronics Technology Co., Ltd.
    Inventor: Yan CHENG
  • Publication number: 20180027505
    Abstract: Embodiments of the present invention provide a power determining method, a user equipment, and a base station. The method includes: determining an initial transmit power of each transmission object in a transmission object set; when a sum of initial transmit powers of all the transmission objects in the transmission object set is greater than a maximum transmit power, performing a power reduction operation based on a priority sequence of information corresponding to the transmission objects, so as to acquire an available transmit power of each transmission object in the transmission object set, where a sum of available transmit powers of all the transmission objects in the transmission object set is not greater than the maximum transmit power; and sending each transmission object in the transmission object set according to the available transmit power corresponding to each transmission object in the transmission object set.
    Type: Application
    Filed: October 3, 2017
    Publication date: January 25, 2018
    Inventors: Yan CHENG, Zhiyu YAN
  • Publication number: 20180026744
    Abstract: In the field of wireless communication, a method and an apparatus for transmitting Uplink Control Information (UCI) are provided. The method includes: determining a codeword corresponding to the UCI among multiple codewords according to a preset rule when the UCI is transmitted on a Physical Uplink Shared Channel (PUSCH) with the multiple codewords (101); and transmitting the UCI by mapping the UCI onto the corresponding codeword (102). The apparatus includes a determining unit and a transmitting unit. The method and the apparatus provide a solution to transmitting UCI on a PUSCH with multiple codewords. This solution can be implemented easily based on LTE R8, without involving too much additional work of standardization.
    Type: Application
    Filed: September 27, 2017
    Publication date: January 25, 2018
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Yongxia LYU, Yan CHENG
  • Patent number: 9866302
    Abstract: The present disclosure relates to a method for reporting channel state information, a user equipment, and a base station. A channel state information measurement resource is determined by a UE according to an aperiodic CSI trigger signaling, so that a base station transmits a CSI-RS only when the UE needs to report the aperiodic CSI. Compared with transmitting a periodic CSI-RS by an existing base station, unnecessary transmitting of the CSI-RS is reduced, and energy of the base station such as an eNB is saved; and reducing the CSI-RS transmission may reduce resources occupied by the CSI-RS, thereby improving the spectrum efficiency of the system. In addition, reducing unnecessary CSI-RS transmission allows the interference in other cells by the base station being reduced; finally, CSI measurement resources are reserved only when the CSI needs to be fed back, the cost occupied by the CSI measurement resources is reduced.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: January 9, 2018
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: David jean-marie Mazzarese, Yongxing Zhou, Yan Cheng
  • Patent number: 9867169
    Abstract: The present invention discloses a method and a device for transmitting information on a physical uplink control channel (PUCCH). The method includes the following steps: a user equipment (UE) selects information from channel state information (CSI) to transmit (S1); the information selected from the CSI is transmitted on the PUCCH with one or both of hybrid automatic retransmission acknowledgment information and a scheduling request (S2), which enables a base station to obtain not only the information in the CSI but also one or both of the hybrid automatic retransmission acknowledgement information and the scheduling request from the PUCCH. The present invention avoids the problem of system downlink throughput degradation caused by dropping all CSI by the UE in the prior art, and avoids the problem that system downlink throughput is influenced by unnecessary data retransmission on a downlink carrier caused by ACK/NACK bundling among carriers.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: January 9, 2018
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Yongxia Lv, Yan Cheng
  • Patent number: 9853773
    Abstract: A method, an apparatus, and a system for transmitting information bits, where the method for transmitting information bits includes: dividing the information bits to be transmitted into at least two groups; encoding the information bits to be transmitted in each group; modulating the coded bits obtained by the encoding to obtain modulation symbols, in which each modulation symbol is obtained by using the modulation of the coded bits in the same group; and mapping and transmitting the modulation symbols. In this way, the receiving end easily reduces the algorithm complexity, thereby ensuring the performance of the receiving end.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: December 26, 2017
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Xiaofeng Chen, Yongxia Lv, Yan Cheng
  • Publication number: 20170367084
    Abstract: Embodiments of the present invention provide a hybrid automatic repeat request-acknowledgment transmission method and an apparatus. The hybrid automatic repeat request-acknowledgment transmission method includes: receiving, by user equipment, on a first serving cell in a subframe n-k, a PDSCH or a downlink control channel indicating downlink SPS release; and sending, by the user equipment in a subframe n, an HARQ-ACK corresponding to the PDSCH or the downlink control channel that is of the first serving cell and that is in the subframe n-k, where an HARQ-ACK timing includes a first HARQ-ACK timing or a second HARQ-ACK timing.
    Type: Application
    Filed: September 1, 2017
    Publication date: December 21, 2017
    Inventors: Yan Cheng, Yongxing Zhou, Bingyu Qu