公开(公告)号：US20240178966A1

公开(公告)日：2024-05-30

申请号：US18428263

申请日：2024-01-31

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Minghui XU ,  Fengwei LIU ,  Jiayin ZHANG

IPC: H04L5/00 ,  H04L27/26

CPC classification number: H04L5/0051 ,  H04L5/0007 ,  H04L27/2613

Abstract: A phase tracking reference signal (PTRS) transmission method and apparatus are provided, to improve demodulation performance. The method includes: determining a first PTRS pattern; and transmitting a PTRS based on the first PTRS pattern, where the first PTRS pattern belongs to a first PTRS pattern set, the first PTRS pattern set includes a plurality of PTRS patterns, and none of all PTRS groups in each PTRS pattern in an OFDM symbol is located at a tail of the OFDM symbol; and the PTRS pattern includes a plurality of PTRS groups, and each PTRS group includes a plurality of consecutive PTRS sampling points.

公开(公告)号：US20240032004A1

公开(公告)日：2024-01-25

申请号：US18475448

申请日：2023-09-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shitong YUAN ,  Fengwei LIU ,  Xinghua SONG

IPC: H04W72/0446 ,  H04W72/0453 ,  H04W72/232

CPC classification number: H04W72/0446 ,  H04W72/0453 ,  H04W72/232

Abstract: This application provides a wireless communication method and apparatus. The wireless communication method includes: receiving indication information of a first pattern, where the first pattern is one of a plurality of patterns, each of the plurality of patterns indicates distribution of at least one resource in frequency domain, and the at least one resource includes at least one of a first resource, a second resource, and a third resource, where the first resource is a definitely available resource, the second resource is an unavailable resource, and availability of the third resource depends on a further indication of an upper-level node; and communicating with a second network device and/or a terminal device based on the first pattern.

公开(公告)号：US20230262755A1

公开(公告)日：2023-08-17

申请号：US18304592

申请日：2023-04-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fengwei LIU ,  Shitong YUAN

IPC: H04W74/04 ,  H04W74/08

CPC classification number: H04W74/04 ,  H04W74/0866 ,  H04W74/0833

Abstract: This application provides a communication method and apparatus, to expect to better implement spatial multiplexing of an access link and a backhaul link of an IAB node. The method is applied to an MT of the IAB node. The method includes: obtaining transmission resource configurations, where the transmission resource configurations include a first configuration and a second configuration, the first configuration indicates that a start time domain resource is a downlink time domain resource and/or an end time domain resource is an uplink time domain resource in one configuration period, and the second configuration indicates that a start time domain resource is an uplink time domain resource and/or an end time domain resource is a downlink time domain resource in one configuration period; and determining, according to a specified rule.

公开(公告)号：US20230224921A1

公开(公告)日：2023-07-13

申请号：US18185737

申请日：2023-03-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lei CHEN ,  Fengwei LIU

IPC: H04W72/23 ,  H04L5/00 ,  H04L27/26 ,  H04W56/00

CPC classification number: H04W72/23 ,  H04L5/0053 ,  H04L27/2657 ,  H04W56/0015

Abstract: A physical downlink control channel transmission method and an apparatus. A terminal device obtains first indication information, where the first indication information indicates a time-frequency resource position of a first system information block 1 physical downlink control channel SIB1-PDCCH and an additional SIB1-PDCCH. The terminal device detects the first SIB1-PDCCH and the additional SIB1-PDCCH at the corresponding time-frequency resource position based on an indication of the first indication information, and obtains a system information block 1 SIB1 based on the detected first SIB1-PDCCH and the additional SIB1-PDCCH. In response to coverage of a SIB1-being is insufficient (for example, a higher frequency band), the first SIB1-PDCCH and the additional SIB1-PDCCH are jointly detected to improve a coverage capability of the SIB1-PDCCH, so that the terminal device obtains a SIB1 message and completes initial access.

公开(公告)号：US20220263697A1

公开(公告)日：2022-08-18

申请号：US17733783

申请日：2022-04-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Qianli MA ,  Fengwei LIU ,  Huang HUANG

IPC: H04L27/26

Abstract: This application provides a symbol processing method and apparatus. The method includes: obtaining, based on a plurality of complex-valued symbols, a first set corresponding to a first transmit symbol and a second set corresponding to a second transmit symbol; performing a copy operation on the first set and the second set, so that both the first set and the second set have a first complex-valued symbol; performing signal processing on the first set and the second set; and performing phase adjustment on the first transmit symbol and/or the second transmit symbol after the signal processing, to ensure that a symbol component whose end position is the first reference point in the first transmit symbol is the same as a symbol component whose end position is the second reference point in the second transmit symbol. This application can ensure that an inter-symbol guard period is flexibly configured.

公开(公告)号：US20220247613A1

公开(公告)日：2022-08-04

申请号：US17727132

申请日：2022-04-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Fengwei LIU

IPC: H04L27/26 ,  H04L5/00

Abstract: Reference signal sequence mapping and de-mapping methods, and an apparatus are provided, to resolve a problem in a conventional technology that time-domain overheads of a reference signal of a single-carrier waveform are relatively large. In this application, a sending device maps a reference signal sequence to a modulation symbol set, to obtain a multiplexing set, where the multiplexing set occupies one single-carrier time domain symbol. Compared with a solution in which a reference signal sequence occupies one single-carrier time domain symbol, the solution in this application reduces time-domain overheads of the reference signal. In addition, to correctly perform channel estimation or channel sounding for the reference signal, different reference signal sequences meet conditions such as orthogonality or conjugate orthogonality, and locations of the reference signal sequences in different multiplexing sets further meet corresponding conditions, and so on.

公开(公告)号：US20220015095A1

公开(公告)日：2022-01-13

申请号：US17487440

申请日：2021-09-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Fengwei LIU ,  Jing QIU ,  Lei CHEN

IPC: H04W72/04 ,  H04W16/28

Abstract: This application provides a method and apparatus for determining a resource in a relay system. By receiving resource indication information transmitted by an upper-level node, a first node determines availability of a symbol in a first resource set located between a first hard resource set and a second hard resource set, and communicates with the upper-level node on the symbol based on the resource indication information to maximally improve resource utilization.

公开(公告)号：US20210345345A1

公开(公告)日：2021-11-04

申请号：US17371965

申请日：2021-07-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Fengwei LIU ,  Qiqi MAO ,  Shitong YUAN ,  Lei CHEN

IPC: H04W72/04

Abstract: This application provides a resource configuration method and apparatus. A multiplexing type between a second functional unit and each of one or more antenna panels of a first functional unit is indicated to an IAB node, so that the IAB node obtains a resource configuration of an MT or a resource configuration of a DU based on the multiplexing type. This helps implement a resource configuration in the IAB node in a case of a plurality of antenna panels.

公开(公告)号：US20210289508A1

公开(公告)日：2021-09-16

申请号：US17332515

申请日：2021-05-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Fengwei LIU ,  Lei CHEN ,  Jing QIU

IPC: H04W72/08 ,  H04B7/06

Abstract: Embodiments of the present disclosure disclose example network device, terminal device, and method for notifying information about a power difference. One example network device includes one or more processors performing operations that include determining first information and sending, by a transceiver of the network device, the first information to a terminal device. The first information indicates a first power difference that is associated with a first waveform. The first power difference is an offset between a power of a reference signal and a power of a first physical downlink shared channel (PDSCH) on which the first waveform is used.

公开(公告)号：US20210044404A1

公开(公告)日：2021-02-11

申请号：US17077772

申请日：2020-10-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Fengwei LIU ,  Lei CHEN

IPC: H04L5/00 ,  H04W72/04 ,  H04W72/08 ,  H04B7/06

Abstract: This application relates to the field of communications technologies, and discloses a resource configuration method and a node. The method includes: sending, by an parent node of a first node, first configuration information to the first node; and then determining, by the first node based on the first configuration information, a second resource for communication between the first node and a child node served by the first node. In this way, the determined second resource can implement orthogonalization between DMRS ports of an access link of the first node and a backhaul link of the first node, and therefore, link performance is improved.