公开(公告)号：US20240243959A1

公开(公告)日：2024-07-18

申请号：US18621237

申请日：2024-03-29

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuanzhou HU ,  Qi FENG ,  Huang HUANG ,  Xiaoyan BI

IPC: H04L27/26 ,  H04L5/00

CPC classification number: H04L27/2666 ,  H04L5/0092 ,  H04L27/2678

Abstract: This application relates to the field of communication technologies, and provides a communication method and apparatus, to improve demodulation performance. A first subcarrier spacing, a second subcarrier spacing, a CP length of a first symbol, and a CP length of a second symbol are determined, where the first subcarrier spacing is K times the second subcarrier spacing, K is an integer greater than 1, and the CP length of the first symbol is greater than or equal to the CP length of the second symbol.

公开(公告)号：US20200177353A1

公开(公告)日：2020-06-04

申请号：US16788031

申请日：2020-02-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Mengying DING ,  Yuanzhou HU ,  Yi QIN ,  Zhongfeng LI ,  Min ZHANG ,  Weimin XIAO ,  Shengyue DOU

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

Abstract: This application provides a reference signal sending and receiving method, a network device, a terminal device, and a system, to be applicable to resource configuration for an SRS in NR. The method includes: sending, by a terminal device, a sounding reference signal SRS based on a location of a starting subcarrier for transmitting the SRS, where the location of the starting subcarrier for transmitting the SRS is determined by an offset of a sounding region, the offset of the sounding region indicates a resource offset between a starting subcarrier of the sounding region and a starting subcarrier of a bandwidth part BWP of the terminal device, and the sounding region is a resource that can be used to transmit the SRS.

公开(公告)号：US20190327053A1

公开(公告)日：2019-10-24

申请号：US16460201

申请日：2019-07-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuanzhou HU ,  Mengying DING ,  Zongjie WANG

IPC: H04L5/00

Abstract: Disclosed is a reference signal transmission method and a device. The method includes converting, by a sending device, a frequency domain reference signal from frequency domain to time domain, to generate a time domain reference signal. The frequency domain reference signal includes a reference signal sequence mapped to a frequency domain resource. The reference signal sequence is determined based on a Zadoff-Chu (ZC) sequence, and a length value of the ZC sequence is selected from at least two length values. The method includes sending, by the sending device, the time domain reference signal. According to the reference signal transmission method, one ZC sequence is selected from at least two ZC sequences with different lengths to generate the reference signal sequence, so that the generated reference signal sequence is characterized by a low PAPR and an low RCM, and is used to generate a reference signal, to improve data transmission performance.

公开(公告)号：US20240380550A1

公开(公告)日：2024-11-14

申请号：US18781465

申请日：2024-07-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuanzhou HU ,  Lei WANG

IPC: H04L5/00

Abstract: A first communication device obtains first data, and maps, based on a mapping relationship between the first data and a time-frequency resource, the first data to the time-frequency resource for transmission. The first data includes at least two differential data symbols or at least two differential spreading data symbols. The mapping relationship includes that two adjacent data units in the first data are adjacent in time domain or frequency domain on the time-frequency resource. The first communication device may flexibly select, based on different scenarios of a time offset or a frequency offset, a mapping relationship between the first data and the time-frequency resource. Based on the mapping relationship, when the time offset or the frequency offset causes a change in frequency domain channels, frequency domain channels through which the two adjacent data units in the first data pass can be close.

公开(公告)号：US20220329379A1

公开(公告)日：2022-10-13

申请号：US17733798

申请日：2022-04-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuanzhou HU ,  Fan WANG

IPC: H04L5/00

Abstract: Embodiments of this application provide a signal sending method, a signal receiving method, and an apparatus, to resolve a problem that channel estimation performance is affected. A reference signal is sent on one or more consecutive symbols, and modulation data is sent on an adjacent symbol previous to the one or more consecutive symbols in time domain and an adjacent symbol next to the one or more consecutive symbols in time domain. A sum of the modulation data carried in the symbol previous to the one or more consecutive symbols and the modulation data carried in the symbol next to the one or more consecutive symbols is zero or the modulation data is the same. Therefore, after time-domain filtering, the reference signal is not interfered with by the adjacent modulation data, so that channel estimation performance can be ensured.

公开(公告)号：US20210250952A1

公开(公告)日：2021-08-12

申请号：US17244545

申请日：2021-04-29

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yuanzhou HU ,  Mengying DING ,  Shuri LIAO ,  Fan WANG

IPC: H04W72/04 ,  H04L27/26 ,  H04J13/00

Abstract: Embodiments of this application provide a communication processing method for a resource request and a related device. In the communication processing method, a terminal side device sends K uplink resource requests on K (K is an integer greater than or equal to 2) uplink channel resources in a transmission time unit (for example, 1 millisecond) to request an uplink resource used for uplink transmission, where cyclic shifts of a code division multiplexing (CDM) sequence used to send the K uplink resource requests on the K uplink channel resources are specific to the terminal side device, or a value of K is specific to the terminal side device, or a combination of the cyclic shifts and K is specific to the terminal side device.

公开(公告)号：US20240396775A1

公开(公告)日：2024-11-28

申请号：US18783542

申请日：2024-07-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuanzhou HU ,  Xiuqiang XU ,  Lei WANG

IPC: H04L27/26 ,  H04W56/00 ,  H04W64/00

Abstract: Embodiments of this application provide a preamble transmission method, an apparatus, and a system. The method includes: A terminal device obtains first information. The first information includes at least one of the following: historical timing advance TA information, geographical location information, or power information of the terminal device. The terminal device determines one group of preambles from KG groups of preambles based on the first information. KG is an integer greater than 1, a total quantity of preambles in the KG groups of preambles is positively correlated with a quantity of preamble cyclic shifts, and the quantity of preamble cyclic shifts is positively correlated with the quantity KG of groups of preambles. The terminal device sends a first preamble in the one group of preambles to a network device.

公开(公告)号：US20210281460A1

公开(公告)日：2021-09-09

申请号：US17323580

申请日：2021-05-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuanzhou HU ,  Fan WANG

IPC: H04L27/26

Abstract: This application provides a data transmission method and an apparatus, so that a PAPR of time-domain sending data can be reduced. The method includes: A transmit end performs modulation data processing on first modulation data whose length is M1, to obtain second modulation data whose length is M2, where M1

公开(公告)号：US20200059335A1

公开(公告)日：2020-02-20

申请号：US16662736

申请日：2019-10-24

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yuanzhou HU ,  Mengying DING ,  Pengpeng DONG ,  Zongjie WANG

IPC: H04L5/00 ,  H04L27/20 ,  H04W72/04

Abstract: The present disclosure relates to sending methods and apparatus. One example method includes receiving first indication information for uplink data transmission, where the first indication information indicates a frequency resource for the uplink data transmission, and the frequency resource includes N subcarriers, and sending an uplink reference signal associated with the uplink data transmission, where a length of a sequence of the uplink reference signal is M, a roll-off factor of a filter for the uplink data transmission is not greater than 2   M N - 1 , and N/2≤M

公开(公告)号：US20190081728A1

公开(公告)日：2019-03-14

申请号：US16186347

申请日：2018-11-09

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Pengpeng DONG ,  Yuanzhou HU ,  Zongjie WANG

IPC: H04L1/00 ,  H04L27/26

Abstract: Method disclosed is applied to an OFDM wireless transmission system which includes at least two OFDM symbols, and includes: adding a zero power padding ZP to a tail end of each of the at least two OFDM symbols; adding data of Nw consecutive points at one end of a first OFDM symbol of the at least two OFDM symbols to the ZP at the other end of the first OFDM symbol, so that the data of the Nw points is a prefix and/or a suffix of the first OFDM symbol, where the first OFDM symbol includes data of N points, N>Nw; and performing point multiplication processing with symmetric time domain window function on the data of the Nw points at the two ends of the first OFDM symbol to which the prefix and/or the suffix is added, so that a sum of point coefficients corresponding to the symmetric time domain window function is 1.