Patents by Inventor Guanghui Yu
Guanghui Yu 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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Patent number: 9001707Abstract: A signal transmission method in a Time Division Duplex (TDD) system is disclosed. The method comprises following steps: within a time length of a half-frame of a radio frame, base station transmits signal on a downlink special time slot, thereafter does not transmit signal on a Guard Period (GP), and then receives signal on an uplink special time slot; all time lengths of other uplink or downlink normal time slots for transmitting signal are equal; the total time length of the downlink special time slot, the guard period and the uplink special time slot is integer times of the time length of an uplink or downlink normal time slot. In addition, a frame structure adopted in the TDD system which corresponds to the method is disclosed.Type: GrantFiled: October 23, 2008Date of Patent: April 7, 2015Assignee: ZTE CorporationInventors: Bo Dai, Shuqiang Xia, Peng Hao, Chunli Liang, Guanghui Yu, Liujun Hu, Bin Yu
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Patent number: 8913673Abstract: The present invention discloses a method and apparatus for transmitting rank indication information, in which the method comprises: when rank indication information and a sounding reference signal are transmitted in a same sub-frame, loading the sounding reference signal to a last symbol of a sub-frame, and transmitting the rank indication information and the sounding reference signal. The present invention prevents destruction of orthogonality of codes between PUCCH channels when the rank indication information and the sounding reference signal are transmitted in the same sub-frame, thus the overall performance of the system can be ensured.Type: GrantFiled: July 3, 2009Date of Patent: December 16, 2014Assignee: ZTE CorporationInventors: Bo Dai, Shuqiang Xia, Chunli Liang, Peng Hao, Guanghui Yu
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Patent number: 8913574Abstract: A method for feeding back channel state information and user equipment are provided in the present invention, which relates to the digital communication field; and they solve the problem of lacking a mechanism of reporting overall and effective channel state information in a SU-MIMO and MU-MIMO dynamic switching system. The method includes: in a single transmission mode, UE sends the channel state information to a network side, wherein the channel state information includes information indicating a transmission layer with the best channel quality. Technical schemes provided in the present invention are applied to the LTE system and LTE-A system.Type: GrantFiled: June 29, 2010Date of Patent: December 16, 2014Assignee: ZTE CorporationInventors: Yijian Chen, Jun Xu, Guanghui Yu, Bo Dai, Junfeng Zhang
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Patent number: 8879494Abstract: The present invention discloses a method and a system for non-periodic feedback in a carrier aggregation scenario. The method comprises: a base station sending a non-periodic trigger signaling to a piece of User Equipment (UE); the UE receiving the non-periodic trigger signaling, and determining a Downlink Component Carrier (DL CC) requiring feedback according to the non-periodic trigger signaling; the UE triggering a non-periodic feedback of the determined DL CC. With the present invention, the problem that it is impossible to determine which downlink component carrier is to be fed back according to the non-periodic trigger signaling in the carrier aggregation scenario is solved, uplink feedback of the DL CC that is unnecessary to be fed back is effectively reduced, the base station can adjust resource allocation according to information fed back by the UE, and the performance of downlink data transmission is ensured.Type: GrantFiled: August 19, 2010Date of Patent: November 4, 2014Assignee: ZTE CorporationInventors: Bo Dai, Xin Wu, Ping Zeng, Guanghui Yu, Zhisong Zuo
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Patent number: 8867331Abstract: The present invention discloses methods for sending positioning reference signals (PRSs), for sending data and for receiving data. When PRSs and data carried by a physical downlink control channel (PDCCH) are required to be sent on a same physical resource, only the data carried by the PDCCH or the PRSs are sent on the same physical resource; or, when a sending end sends the PRSs and the data carried by the PDCCH on the same physical resource at the same time, a receiving end is made to ignore the received PRSs or the data carried by the PDCCH; or, the sending of the PRSs or the data carried by the PDCCH is limited so that they will not be sent on the same physical resource. The present invention also discloses devices for sending positioning reference signals, for sending data and receiving data.Type: GrantFiled: December 29, 2009Date of Patent: October 21, 2014Assignee: ZTE CorporationInventors: Bo Dai, Guanghui Yu, Zhisong Zuo, Yijian Chen
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Patent number: 8831067Abstract: The present invention discloses a method for feeding back channel information, which includes: configuring a same codebook space at a data transmitting end and a data receiving end (101); the data receiving end selecting, from the codebook space, a codeword matched with a channel, and transmitting a sequence number corresponding to the codeword to the data transmitting end (102); and the data transmitting end extracting, according to the sequence number, a corresponding codeword from a locally-configured codebook space to obtain channel state information (103). The present invention also discloses a system for feeding back channel information, which includes a data transmitting end and a data receiving end. The method and system for feeding back channel information solve the problem that there is no channel information feedback method for dual-polarized channels.Type: GrantFiled: November 5, 2010Date of Patent: September 9, 2014Assignee: ZTE CorporationInventors: Yijian Chen, Guanghui Yu, Junfeng Zhang, Shupeng Li
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Patent number: 8797978Abstract: A method for sending and detecting downlink control information is provided. A base station carries the downlink control information in a physical downlink control channel, and sends said physical downlink control channel through component carriers. Said base station bears first type downlink control information on an anchor component carrier, and bears third type downlink control information on a prime component carrier, wherein said first type downlink control information bears one or more types of uplink scheduling information, downlink scheduling information and uplink power control information of its component carrier, said third type downlink control information bears indication information of the second type downlink control information which bears the uplink scheduling information and/or the downlink scheduling information of one or more component carriers.Type: GrantFiled: April 27, 2010Date of Patent: August 5, 2014Assignee: ZTE CorporationInventors: Weijun Li, Bo Dai, Guanghui Yu, Yijian Chen
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Patent number: 8761116Abstract: The present disclosure discloses a method and system for transmitting a position reference signal. Wherein the method includes: frequency domain positions for transmitting a position reference signal are n physical resource blocks, and the value of n is obtained according to signaling; time domain positions for transmitting the position reference signal are the remaining orthogonal frequency division multiplexing symbols in a subframe, except for orthogonal frequency division multiplexing symbols for transmitting a physical downlink control channel and orthogonal frequency division multiplexing symbols for transmitting a cell-specific reference signal; and the position reference signal is transmitted according to the frequency domain position and the time domain position. By adopting the method and the system of the present disclosure, the transmitting of the position reference signal is realized, and the positioning precision of a UE is ensured.Type: GrantFiled: December 30, 2009Date of Patent: June 24, 2014Assignee: ZTE CorporationInventors: Bo Dai, Guanghui Yu, Weijun Li, Yijian Chen
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Patent number: 8743899Abstract: A method for sending a physical broadcast channel in the TDD system is disclosed, which is: a signal of a physical broadcast channel is not sent in a pilot position, and the signal of the physical broadcast channel is sent on 4 OFDM symbols of the first subframe of one radio frame. Through the present invention, the extension requirement of the physical broadcast channel capacity in the TDD can be met, and the system complexity is reduced due to the normal cyclic prefix and extended prefix using the same sending method.Type: GrantFiled: October 17, 2008Date of Patent: June 3, 2014Assignee: ZTE CorporationInventors: Bo Dai, Shuqiang Xia, Chunli Liang, Peng Hao, Guanghui Yu, Liujun Hu, Bin Yu
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Method and apparatus for sending rank indication information, receiving method and apparatus thereof
Patent number: 8693415Abstract: The present invention discloses a method and an apparatus for sending rank indication (RI) information, and a method and an apparatus for receiving RI information, wherein the method for sending the RI information includes: carrying the RI information on a physical uplink control channel (PUCCH) for transmitting scheduling request (SR) information when the RI information and the SR information are sent within a same subframe, and sending the RI information and the SR information by using the PUCCH for transmitting SR information. According to the present invention, the problem that the orthogonality of codes between PUCCHs is destroyed due to that the RI information and the SR information are sent within a same subframe is solved, the overall system performance thereby can be guaranteed.Type: GrantFiled: July 3, 2009Date of Patent: April 8, 2014Assignee: ZTE CorporationInventors: Bo Dai, Chunli Liang, Peng Hao, Shuqiang Xia, Guanghui Yu -
Patent number: 8660032Abstract: Disclosed are a method for transmitting feedback of channel state information and user equipment. The method comprises: under a transmission mode, user equipment (UE) determining contents carried by channel state information according to indication information, wherein the indication information comprises at least one of the following: rank indicator (RI), channel quality indication information (CQI) and configuration signaling sent by a base station eNodeB; and the UE sending the channel state information to the eNodeB. The present invention solves the problem that the contents provided by the channel state information are not suitable for those transmission modes under which a multiple user-MIMO and a single user-MIMO can be switched from one to another, improving the applicability of the channel state information.Type: GrantFiled: June 29, 2010Date of Patent: February 25, 2014Assignee: ZTE CorporationInventors: Bo Dai, Yijian Chen, Jun Xu, Guanghui Yu, Qianzi Xu, Ruyue Li, Junfeng Zhang
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Patent number: 8654727Abstract: The present disclosure provides a method and system for transmitting a position reference signal, which includes: acquiring a currently needed Position Reference Signal (PRS) sequence with a length of 2×NRBPRS, wherein NRBPRS is the PRS bandwidth configured by high layer signaling, which is represented by a unit of a resource block; determining the position of the PRS sequence in a physical resource block; and transmitting the acquired PRS sequence on the determined position. With the method of the present disclosure, a currently needed PRS sequence is acquired directly, or at first, a PRS sequence with the maximum length is generated, and then the currently needed PRS sequence is intercepted from the PRS sequence with the maximum length. The present disclosure ensures that an effective PRS sequence can be acquired in any circumstance, thereby ensuring the realization of the positioning function of the PRS.Type: GrantFiled: December 30, 2009Date of Patent: February 18, 2014Assignee: ZTE CorporationInventors: Bo Dai, Guanghui Yu, Weijun Li, Xun Yang
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Publication number: 20140029428Abstract: The disclosure discloses a method for transmitting a pilot, which includes the step of: selectively transmitting or not transmitting a demodulation pilot in a subframe according to a setting, in a control signaling, of triggering or not triggering a demodulation pilot transmission in the subframe. A system for transmitting the pilot is further disclosed, which includes a pilot selectively transmitting unit configured to selectively transmit or not transmit a demodulation pilot in a subframe according to a setting, in a control signaling, of triggering or not triggering a demodulation pilot transmission in the subframe. The method and system of the disclosure are capable of reducing the pilot overhead and improving the capacity of the LTE/LTE-Advanced system.Type: ApplicationFiled: August 1, 2011Publication date: January 30, 2014Applicant: ZTE CORPORATIONInventors: Zhirong Lin, Shuqiang Xia, Guanghui Yu, Chunli Liang, Bo Dai, Peng Hao
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Publication number: 20130315183Abstract: The disclosure discloses a method for sharing a frequency spectrum between a GSM system and a LTE system.Type: ApplicationFiled: September 20, 2011Publication date: November 28, 2013Applicant: ZTE CORPORATIONInventors: Jiying Xiang, Guanghui Yu, Liujun Hu, Shijun Chen, Yanwei Wu, Zhaogang He, Xianming Zhao, Daxiong Xie
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Patent number: 8582605Abstract: A mapping method for the initial location of the downlink pilot comprises the following steps: acquiring a cell sequence number; mapping the cell sequence number to k; and setting an initial location of a downlink pilot on a first antenna as the Kth sub-carrier. A mapping device for the initial location of the downlink pilot comprising: an acquiring module for acquiring a cell sequence number, a mapping module for mapping the cell sequence number to k and a setting module for setting an initial location of a downlink pilot on a first antenna as the Kth sub-carrier. The mapping method and the mapping device make each cell acquire the specific location of pilot, so that all functions of the system can be realized conveniently.Type: GrantFiled: July 4, 2008Date of Patent: November 12, 2013Assignee: ZTE CorporationInventors: Bo Dai, Shuqiang Xia, Guanghui Yu, Peng Hao, Chunli Liang
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Patent number: 8547922Abstract: The present disclosure discloses a signal resource determination method, and the method includes that: carrying a dedicated demodulation data reference signal in a Resource Element (RE) on an Orthogonal Frequency Division Multiplexing (OFDM) symbol, wherein the OFDM symbol is in a non-control channel area of a Resource Block (RB) and carries a non-common reference signal.Type: GrantFiled: June 10, 2010Date of Patent: October 1, 2013Assignee: ZTE CorporationInventors: Guanghui Yu, Ruyue Li, Yunfeng Sun, Bo Dai, Junfeng Zhang
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Patent number: 8537752Abstract: The present invention discloses an information multiplexing method, comprising: coding multiple feedback information according to number of the feedback information and a linear block code sequence, and truncating corresponding coded information according to a target length of the feedback information coded (S302); dividing the truncated coded information into multiple feedback information logic units sequentially, and multiplexing together the multiple feedback information logic units, multiple rank indication information logic units, multiple control information logic units and data information logic units are; wherein the control information logic units, the multiple rank indication information logic units, the data information logic units, and the feedback information logic units contain the same bit number (S304). Transmission of more than two ACK/NACKs is achieved by the present invention and transmission performance of the system is improved.Type: GrantFiled: January 21, 2009Date of Patent: September 17, 2013Assignee: ZTE CorporationInventors: Bo Dai, Peng Hao, Chunli Liang, Guanghui Yu, Yuqiang Zhang
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Patent number: 8521210Abstract: The present disclosure provides a transmission power control method for a physical uplink shared channel, including: when there is only uplink control information but no uplink shared channel data sent over the physical uplink shared channel, the transmission power of the physical uplink shared channel is set according to the total number of bits contained in a channel quality indication signaling and its corresponding cyclic redundancy check as well as an amplitude offset. The present disclosure also provides a transmission power control system for a physical uplink shared channel. The method and system described in the present disclosure can ensure the overall performance of a system.Type: GrantFiled: July 1, 2009Date of Patent: August 27, 2013Assignee: ZTE CorporationInventors: Bo Dai, Peng Hao, Zhisong Zuo, Guanghui Yu, Jin Xu
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Publication number: 20130208819Abstract: The present invention discloses a method for feeding back channel information, which includes: configuring a same codebook space at a data transmitting end and a data receiving end (101); the data receiving end selecting, from the codebook space, a codeword matched with a channel, and transmitting a sequence number corresponding to the codeword to the data transmitting end (102); and the data transmitting end extracting, according to the sequence number, a corresponding codeword from a locally-configured codebook space to obtain channel state information (103). The present invention also discloses a system for feeding back channel information, which includes a data transmitting end and a data receiving end. The method and system for feeding back channel information solve the problem that there is no channel information feedback method for dual-polarized channels.Type: ApplicationFiled: November 5, 2010Publication date: August 15, 2013Applicant: ZTE CORPORATIONInventors: Yijian Chen, Guanghui Yu, Junfeng Zhang, Shupeng Li
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Publication number: 20130201929Abstract: The present invention discloses a method and a system for non-periodic feedback in a carrier aggregation scenario. The method comprises: a base station sending a non-periodic trigger signaling to a piece of User Equipment (UE); the UE receiving the non-periodic trigger signaling, and determining a Downlink Component Carrier (DL CC) requiring feedback according to the non-periodic trigger signaling; the UE triggering a non-periodic feedback of the determined DL CC. With the present invention, the problem that it is impossible to determine which downlink component carrier is to be fed back according to the non-periodic trigger signaling in the carrier aggregation scenario is solved, uplink feedback of the DL CC that is unnecessary to be fed back is effectively reduced, the base station can adjust resource allocation according to information fed back by the UE, and the performance of downlink data transmission is ensured.Type: ApplicationFiled: August 19, 2010Publication date: August 8, 2013Applicant: ZTE CORPORATIONInventors: Bo Dai, Xin Wu, Ping Zeng, Guanghui Yu, Zhisong Zuo