公开(公告)号：US20200260454A1

公开(公告)日：2020-08-13

申请号：US16861842

申请日：2020-04-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shengyue DOU ,  Shibin GE ,  Ting WANG ,  Yuanjie LI ,  Xi ZHANG ,  Xiaoyan BI

IPC: H04W72/04 ,  H04W76/11 ,  H04L5/00

Abstract: This disclosure provides an information transmission method and a communications device. The method includes: when determining that higher layer signaling is not configured with a scrambling identifier, scrambling or descrambling, by a communications device, data by using a second initial scrambling value, where the scrambling identifier is used by the communications device to determine a first initial scrambling value used for data scrambling or descrambling, and the second initial scrambling value is related to at least one or two of a cell identifier, a radio network temporary identifier, and a reserved bit. Therefore, in the embodiments of this disclosure, when determining that the higher layer is not configured with the scrambling identifier, the communications device scrambles or descrambles the data by using the second initial scrambling value. This resolves a problem in the prior art that a terminal device cannot determine an initial scrambling value used for data scrambling.

公开(公告)号：US20200083940A1

公开(公告)日：2020-03-12

申请号：US16684219

申请日：2019-11-14

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shibin GE ,  Wei HAN ,  Xiaoyan BI ,  Hongzhe SHI ,  Ye WU ,  Huangping JIN

IPC: H04B7/0456 ,  H04B7/06

Abstract: This application provides a technical solution for rank indication, and especially when a CQI number is not configured or a CQI number is 1, a network device configures a rank indication restriction parameter as that at least one of ranks whose index numbers are 0, 1, 2, and 3 is allowed to be reported by the terminal device; or even if the network device does not perform the foregoing configuration, and none of the ranks whose index numbers are 0, 1, 2, and 3 is allowed to be reported, the terminal device may select at least one rank for RI reporting, so as to resolve a problem that a system cannot work. In addition, according to embodiments of this application, bit overheads required for RI reporting may further be reduced.

公开(公告)号：US20190082405A1

公开(公告)日：2019-03-14

申请号：US16186780

申请日：2018-11-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shibin GE ,  Jin LIU ,  Xiaoyan BI

IPC: H04W56/00 ,  H04B7/0452 ,  H04L27/26

Abstract: An embodiment of this application provides a synchronization signal transmitting method. The method includes: configuring, by a base station, one or more groups of synchronization signals, where each group of synchronization signals is mapped to N PRBs and occupies multiple symbols in time domain, and N is a positive integer greater than or equal to 1; and transmitting, by the base station, the one or more groups of synchronization signals. In comparison with the prior art, PSD of a synchronization signal can be increased, and coverage of the synchronization signal can be ensured.

公开(公告)号：US20240030981A1

公开(公告)日：2024-01-25

申请号：US18358459

申请日：2023-07-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Li FAN ,  Shibin GE ,  Jie WANG ,  Zhimeng ZHONG ,  Qibo QIN ,  Huangping JIN

IPC: H04B7/06

CPC classification number: H04B7/0626 ,  H04B7/0639

Abstract: This application discloses a channel state information feedback method and a communication apparatus. The method includes: determining channel state information based on a first codebook, and sending the channel state information. The first codebook is determined based on a channel represented by one or more spatial-frequency domain column vectors, and the one or more spatial-frequency domain column vectors indicate the channel in joint spatial-frequency domain. In this solution, the first codebook may be determined based on the channel represented by the one or more spatial-frequency domain column vectors. Because the one or more spatial-frequency domain column vectors may represent the channel in joint spatial-frequency domain, that is, the first codebook represents the channel based on joint spatial-frequency domain, a joint spatial-frequency domain feature may be fully used, to explore a sparse feature of the channel, thereby improving system performance.

公开(公告)号：US20230318677A1

公开(公告)日：2023-10-05

申请号：US18331518

申请日：2023-06-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jie WANG ,  Li FAN ,  Shibin GE ,  Hui WANG ,  Zhimeng ZHONG ,  Xiaoyan BI

IPC: H04B7/06 ,  H04B7/0417

CPC classification number: H04B7/0626 ,  H04B7/0417

Abstract: This application provides a channel state information (CSI) feedback method including: a terminal device selects B complex coefficients from K complex coefficients according to a preset priority rule, and provides feedback, where K is a quantity of complex coefficients that the terminal device is allowed to feed back, and the preset priority rule is related to at least one of the following: an index value of each complex coefficient in the K complex coefficients, an index value of a reference signal port corresponding to each complex coefficient in the K complex coefficients in S reference signal ports, or an index value of each complex coefficient in the K complex coefficients in a plurality of complex coefficients that are allowed to be selected for a corresponding reference signal port, where S is a quantity of reference signal ports that the terminal device is allowed to select.

公开(公告)号：US20230239111A1

公开(公告)日：2023-07-27

申请号：US18191350

申请日：2023-03-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Huangping JIN ,  Xiaohan WANG ,  Wei HAN ,  Shibin GE ,  Xiang REN ,  Yong LIU ,  Xiaoyan BI

IPC: H04L5/00

CPC classification number: H04L5/0051 ,  H04L5/0005

Abstract: This application discloses a method for sending a demodulation reference signal, a method for receiving a demodulation reference signal, and a communication apparatus. The method for sending a demodulation reference signal includes: A network device generates a first signal and sends the first signal on a first time-frequency resource, where the first signal is formed by superimposing M DMRS port signals, and delay segmentation locations corresponding to at least two of the M DMRS port signals are different. Because the first signal is formed by superposing the M DMRS port signals, that is, the network device sends a plurality of DMRS port signals on a same time-frequency resource, reference signal overheads can be reduced. The network device sends more DMRS port signals on the same time-frequency resource. In this way, the network device can send more streams without increasing pilot overheads.

公开(公告)号：US20220182122A1

公开(公告)日：2022-06-09

申请号：US17681281

申请日：2022-02-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiang REN ,  Shibin GE ,  Huangping JIN ,  Xiaohan WANG ,  Peng SHANG

IPC: H04B7/06 ,  H04B7/0413

Abstract: This application provides example channel measurement methods and example communication apparatuses. One example method includes determining L weighting coefficients for determining channels of K moments based on channels of M moments, where L, M, and K are all positive integers. Information about the L weighting coefficients can then be sent.

公开(公告)号：US20200220752A1

公开(公告)日：2020-07-09

申请号：US16822781

申请日：2020-03-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hongzhe SHI ,  Shibin GE ,  Xiaoyan BI ,  Min ZHANG

IPC: H04L27/00 ,  H04W72/04 ,  H04W76/27 ,  H04W80/02 ,  H04L5/00

Abstract: This application provides a data transmission method and a device. The method includes: obtaining, by a transmit end device, a modulation symbol sequence in multiple time-frequency resource element groups, wherein a size of the time-frequency resource element group is agreed on in a protocol, or determined based on a transmission parameter; performing, by the transmit end device, interleaving processing on the modulation symbol sequence using the time-frequency resource element group as an interleaving unit, to obtain an order in which the modulation symbol sequence is mapped onto the multiple time-frequency resource element groups, wherein multiple consecutive modulation symbol groups in the modulation symbol sequence are mapped onto at least two of the multiple time-frequency resource element groups; and sending, by the transmit end device, the modulation symbol sequence in the order in which the modulation symbol sequence is mapped onto the multiple time-frequency resource element groups.

公开(公告)号：US20200099473A1

公开(公告)日：2020-03-26

申请号：US16697115

申请日：2019-11-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei HAN ,  Yong LIU ,  Shibin GE ,  Huangping JIN ,  Xiaoyan BI ,  Xiang REN

IPC: H04L1/06 ,  H04B7/06 ,  H04L5/00

Abstract: This application configures a quantity and size of subbands in a channel state information (CSI) reporting band for flexibility and reduced complexity of terminal addressing by determining a channel state information subband size based on a bandwidth part (BWP), determining a quantity of channel state information subbands included in a channel state information reporting band based on (i) a carrier bandwidth (CC bandwidth), (ii) the BWP bandwidth or (iii) a channel state information reference signal (CSI-RS) bandwidth and the channel state information subband size. The method further includes determining an actual quantity of resource blocks included in a starting subband and an actual quantity of resource blocks in an ending subband in the channel state information subband.

公开(公告)号：US20200099461A1

公开(公告)日：2020-03-26

申请号：US16698466

申请日：2019-11-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Dageng CHEN ,  Shibin GE ,  Xiaoyan BI

IPC: H04J11/00

Abstract: This application discloses a scrambling code sequence generation method and apparatus, and belongs to the field of communication technologies. The method includes: determining a scrambling code sequence based on a configuration parameter of a transmission reception point TRP, where different TRPs correspond to different configuration parameters; and scrambling or descrambling data by using the scrambling code sequence. This application is used for data transmission, resolves a problem in a related technology that system performance is relatively poor because user equipment cannot better obtain, from received data, data sent by a TRP, and improves system performance.