公开(公告)号：US11122555B2

公开(公告)日：2021-09-14

申请号：US16580700

申请日：2019-09-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Junchao Li ,  Haibao Ren ,  Hao Tang ,  Zhenfei Tang ,  Yi Wang

IPC: H04W4/00 ,  H04W72/04 ,  H04L5/00

Abstract: The present disclosure relates to data transmission methods, terminal devices, and base station systems. In one example method, a base station sends information about a first control resource set and information about a second control resource set to a terminal device. The terminal device detects first control information in a first control channel candidate set, and detects second control information in a second control channel candidate set.

公开(公告)号：US11102744B2

公开(公告)日：2021-08-24

申请号：US16843781

申请日：2020-04-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jian Zhang ,  Yuanjie Li ,  Ting Wang ,  Qinghai Zeng ,  Haibao Ren

IPC: H04J3/06 ,  H04W56/00 ,  H04L27/26 ,  H04W4/02

Abstract: Embodiments of the present disclosure provide a downlink synchronization method, an apparatus, and a system, and relate to the communications field, so as to reduce downlink synchronization complexity and improve downlink synchronization efficiency. According to the downlink synchronization method, abase station sends downlink synchronization reference information to UE by using dedicated signaling or a system message, where the downlink synchronization reference information is used to instruct the UE to perform downlink synchronization in a second cell by referring to a downlink synchronization channel of a first cell; and the base station sends, in the second cell according to location information of the UE, a beam including a downlink synchronization channel to the UE, where the first cell and the second cell include an overlapped coverage area. The embodiments of the present disclosure are applied to synchronization channel sending.

公开(公告)号：US11025316B2

公开(公告)日：2021-06-01

申请号：US16368645

申请日：2019-03-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shengyue Dou ,  Yuanjie Li ,  Haibao Ren

IPC: H04B7/0456 ,  H04B7/024 ,  H04B7/04 ,  H04L25/03

Abstract: Embodiments of this application disclose a method used for data transmission. This method is applicable to coordinated transmission/reception in NR, and is relatively flexible. This method includes: determining, by a network device, a plurality of groups of antenna ports, where each group of antenna ports includes at least two antenna ports, and any two antenna ports in a same group of antenna ports meet quasi-co-location QCL; and sending, by the network device, at least one piece of first indication information to a terminal device, where the first indication information is used to determine QCL configuration information corresponding to a target antenna port used for sending first data, the QCL configuration information is used to indicate an antenna port that is QCLed with the corresponding target antenna port.

公开(公告)号：US10952200B2

公开(公告)日：2021-03-16

申请号：US16368652

申请日：2019-03-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haibao Ren ,  Yi Huang ,  Yuanjie Li ,  Zheng Wang

IPC: H04W72/04 ,  H04W76/27 ,  H04L5/00 ,  H04L27/00 ,  H04B7/08 ,  H04B7/06 ,  H04W88/02

Abstract: The present application relates to an indication method for transmitting a physical control channel. The method includes: determining, by a radio node, one of space frequency block coding SFBC transmission and single frequency transmission, as a receiving mode used by user equipment to receive a downlink physical control channel; and sending, by the radio node, an indication message to the user equipment, where the indication message is used to instruct the user equipment to receive, in the receiving mode, the downlink physical control channel sent by the radio node. The user equipment receives the downlink physical control channel according to the receiving mode, thereby improving system performance.

公开(公告)号：US10924174B2

公开(公告)日：2021-02-16

申请号：US16401427

申请日：2019-05-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yi Huang ,  Haibao Ren ,  Shengyue Dou ,  Yuanjie Li

IPC: H04W88/02 ,  H04B7/06 ,  H04B7/0456 ,  H04L5/00

Abstract: A precoding matrix indication method relating to the field of wireless communications technologies, an apparatus, and a system that are in a wireless communications system are provided. A combination of a plurality of stages of codebooks and a corresponding PMI feedback method are further provided. User equipment receives indication information sent by a network device, where the indication information includes information about codebooks used to report precoding matrix indicators (PMI), the information about the codebooks indicates that the used codebooks are at least two of a first codebook to an Nth codebook, the PMIs include at least two of a first PMI to an Nth PMI, and the first PMI to the Nth PMI are respectively used to indicate a precoding matrix in the first codebook to a precoding matrix in the Nth codebook; and sends the PMIs based on the indication information.

公开(公告)号：US10778287B2

公开(公告)日：2020-09-15

申请号：US16149518

申请日：2018-10-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Na Deng ,  Haibao Ren ,  Yuanjie Li ,  Ting Wang

IPC: H04B7/024 ,  H04B7/0413 ,  H04W72/04 ,  H04W28/16 ,  H04W16/28

Abstract: A data transmission method and apparatus are provided. The method includes: receiving control information from a network side device, wherein the control information comprises transmission parameter indication information, wherein the transmission parameter indication information is used to indicate a quantity of transport layers for at least two codewords and port numbers of ports for the at least two codewords; and determining, based on the transmission parameter indication information, a quantity of transport layers for at least two codewords and port numbers of ports for the at least two codewords, wherein ports used by different codewords of the at least two codewords are non-quasi-co-location, and ports used by one codeword of the at least two codewords are quasi-co-location when the codeword has more than one port.

公开(公告)号：US10693690B2

公开(公告)日：2020-06-23

申请号：US16009204

申请日：2018-06-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haibao Ren ,  Bingyu Qu ,  Yuanjie Li

IPC: H04L27/26 ,  H04B7/06 ,  H04J3/16 ,  H04L5/00 ,  H04W16/28 ,  H04W72/04 ,  H04L25/03 ,  H04W4/18 ,  H04L12/58 ,  H04W80/00 ,  H04L12/40

Abstract: A data symbol transmission method and a wireless network device are provided. The device includes: an information determining unit, configured to determine a location at which hardware switching needs to be performed in a current subframe and switching time of the hardware switching; a configuration unit, configured to configure, according to the switching time, a first guard period for a first data symbol corresponding to the location, where a length of the first guard period is greater than or equal to that of the switching time; where the configuration unit is further configured to: use, as a second data symbol, a data symbol in the subframe other than the first data symbol, and configure a second guard period for the second data symbol; and a sending unit, configured to send the subframe to another wireless network device. Resource utilization can be improved, and a system capacity can be increased.

公开(公告)号：US10554794B2

公开(公告)日：2020-02-04

申请号：US15977304

申请日：2018-05-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haibao Ren ,  Yuanjie Li

IPC: H04L29/08 ,  H04W72/04

Abstract: A method includes: determining a frame structure used for information transmission in the TDD system, where each frame based on the frame structure includes N subframes with a timing length of K subframes, one super frame includes M consecutive subframes, M is a common multiple of N and 2K, each super frame includes at least one downlink-only subframe, and further includes at least one of an uplink-only subframe, a type-1 subframe, or a type-2 subframe, the downlink-only subframe includes a downlink symbol and no uplink symbol, the type-1 subframe includes an uplink symbol and a downlink symbol with uplink symbols less than downlink symbols, the type-2 subframe includes an uplink symbol and a downlink symbol with uplink symbols more than downlink symbols, and the uplink-only subframe includes an uplink symbol and no downlink symbol; and sending and/or receiving a message based on the frame structure.

公开(公告)号：US12119902B2

公开(公告)日：2024-10-15

申请号：US18228195

申请日：2023-07-31

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haibao Ren ,  Yi Huang ,  Yuanjie Li

IPC: H04B7/0456 ,  H04B7/06 ,  H04W72/0453 ,  H04W72/23

CPC classification number: H04B7/0456 ,  H04B7/0639 ,  H04W72/0453 ,  H04W72/23

Abstract: This application provides a transmission precoding matrix indication method and a device. The method includes: determining a bit quantity of a transmission precoding matrix indicator field corresponding to a subband scheduled for uplink based on downlink control information received from a network device, where the bit quantity of the transmission precoding matrix indicator field corresponding to the subband is related to a quantity of subbands corresponding to the resource scheduled for uplink; and further, determining an uplink transmission precoding matrix corresponding to the subband based on the bit quantity of the transmission precoding matrix indicator field corresponding to the subband and the uplink transmission layer quantity. A transmission precoding matrix indicator field can be effectively used, and control channel resource utilization is improved.

公开(公告)号：US11528099B2

公开(公告)日：2022-12-13

申请号：US16786592

申请日：2020-02-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Haibao Ren ,  Huiying Zhu ,  Jinyao Liang ,  Yuanjie Li

IPC: H04L1/00 ,  H04L1/18 ,  H04L1/06 ,  H04L5/00 ,  H04W72/04

Abstract: In accordance with an embodiment, the application discloses a communication method that includes the operations: generating downlink control information DCI; and sending the DCI to a terminal device. The DCI includes indication information used to indicate a single codeword scheduled by using the DCI, or a correspondence between a single codeword scheduled by using the DCI and a first resource. Alternatively, the DCI includes a first number of a hybrid automatic repeat request HARQ process corresponding to a single codeword scheduled by using the DCI, where a quantity of values of the first number is greater than a quantity of values of a second number of an HARQ process used by either one codeword of DCI used to schedule two codewords. In embodiments of the application, a utilization rate of an HARQ buffer can be improved.