公开(公告)号：US20240032116A1

公开(公告)日：2024-01-25

申请号：US18352883

申请日：2023-07-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaolu WANG ,  Hejia LUO ,  Yinggang DU ,  Rong LI ,  Jun WANG

IPC: H04W74/08 ,  H04W56/00

CPC classification number: H04W74/085 ,  H04W56/0045

Abstract: Embodiments of this application provide a parameter transmission method and an apparatus, and relate to the field of wireless communication technologies. In the method, the terminal device may receive first information. The first information may include a time parameter. The time parameter may be used to determine a timing offset. The timing offset includes a second timing offset, and the second timing offset indicates a delay of activation of configuration information. The terminal device determines a delay start duration of a random access response (RAR) window based on the second timing offset.

公开(公告)号：US20230163890A1

公开(公告)日：2023-05-25

申请号：US18063315

申请日：2022-12-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yunfei QIAO ,  Ying CHEN ,  Xiaolu WANG

IPC: H04L1/1812 ,  H04W72/23 ,  H04W72/12

CPC classification number: H04L1/1812 ,  H04W72/12 ,  H04W72/23

Abstract: Embodiments of this application provide communication methods and apparatuses. One method includes: receiving first indication information from a network device, where the first indication information indicates a first part of a Hybrid Automatic Repeat reQuest (HARQ) process identifier scheduled by the network device, obtaining a second part of the HARQ process identifier, and determining the HARQ process identifier based on the first part of the HARQ process identifier and the second part of the HARQ process identifier.

公开(公告)号：US20230027812A1

公开(公告)日：2023-01-26

申请号：US17953705

申请日：2022-09-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaolu WANG ,  Hejia LUO ,  Rong LI ,  Jun WANG

IPC: H04W56/00

Abstract: A method and a communication apparatus for determining a timing advance. A downlink signal is received from a network device. A first reference moment of a signal period of the downlink signal is determined, where the first reference moment includes a start receiving moment of the signal period. A first time interval between the start receiving moment and a start moment of a first period in which the terminal is located is determined. Based on the first time interval, determining whether a start sending moment of the signal period is within the first period, and determining the start sending moment, where a period is a duration distributed at an equal interval on a time axis. A timing advance is determined based on the start receiving moment and the start sending moment, and an uplink signal is sent based on the timing advance.

公开(公告)号：US20220386200A1

公开(公告)日：2022-12-01

申请号：US17883388

申请日：2022-08-08

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaolu WANG ,  Hejia LUO ,  Rong LI ,  Bin WANG ,  Jun WANG

IPC: H04W36/06 ,  H04W36/30 ,  H04W36/00 ,  H04B7/185

Abstract: This application provides example network resource configuration methods and apparatuses. One example method includes receiving configuration information from a network device, where the configuration information includes information of a first threshold corresponding to at least one candidate cell, and the first threshold includes at least one of a Doppler frequency shift threshold, a timing advance TA rate threshold, or a Doppler frequency shift change rate threshold. A target cell is determined from the at least one candidate cell based on the configuration information. A handover to the target cell is initiated.

公开(公告)号：US20220167297A1

公开(公告)日：2022-05-26

申请号：US17671335

申请日：2022-02-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaolu WANG ,  Hejia LUO ,  Chenlei XU ,  Rong LI ,  Jun WANG

IPC: H04W56/00 ,  H04B7/185

Abstract: Example methods and apparatus for determining a timing advance are described. One example method includes obtaining ephemeris information of a satellite, where the ephemeris information includes coordinates of the satellite and an ephemeris error of the satellite. A timing advance is determined according to a preset rule based on the ephemeris information and location information of a terminal device, where the location information includes coordinates of the terminal device and a positioning error of the terminal device. The preset rule is determined by using a first horizontal distance, a first vertical distance, the ephemeris error, and the positioning error.

公开(公告)号：US20240306212A1

公开(公告)日：2024-09-12

申请号：US18660964

申请日：2024-05-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaolu WANG ,  Hejia LUO ,  Jun WANG ,  Rong LI

IPC: H04W74/0833 ,  H04W72/1268 ,  H04W74/08

CPC classification number: H04W74/0833 ,  H04W72/1268 ,  H04W74/0891

Abstract: A communication method and a communication apparatus. A terminal device obtains a first SSB. The terminal device sends a random access preamble corresponding to the first SSB. The random access preamble is carried at a first time domain position. The first time domain position is associated with a timing offset value. The timing offset value is determined based on a round-trip delay between the network device and a first position in an area covered by the network device.

公开(公告)号：US20230345338A1

公开(公告)日：2023-10-26

申请号：US18343486

申请日：2023-06-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hejia LUO ,  Xiaolu WANG ,  Rong LI ,  Jianglei MA ,  Jun WANG

IPC: H04W36/08 ,  H04W36/30 ,  H04W48/20 ,  H04W36/00

CPC classification number: H04W36/304 ,  H04W36/0058 ,  H04W36/083 ,  H04W48/20

Abstract: This application relates to a cell selection method and apparatus. In an example method, a terminal device performs measurement based on measurement configuration information of N cells and determines M candidate cells based on a measurement result. N is an integer greater than 0, and M is an integer greater than 0 and less than N. The example method further includes the terminal device selecting a target cell from the M candidate cells based on first information. The first information includes coverage information of at least one candidate cell in the M candidate cells.

公开(公告)号：US20230109710A1

公开(公告)日：2023-04-13

申请号：US18080949

申请日：2022-12-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hejia LUO ,  Xiaolu WANG ,  Ying CHEN ,  Yu WANG ,  Yinggang DU ,  Rong LI

IPC: H04W72/1268 ,  H04W72/23

Abstract: This application provides an uplink timing method. A half-duplex terminal device determines, based on a maximum timing advance of an area in which the terminal device is located and a set of time units used by the terminal device to receive a system message, a set of time units unavailable for uplink transmission, and in a process of calculating a time unit for sending an uplink signal, skips, based on a scheduling offset of the uplink signal, a time unit in the set of time units unavailable for uplink transmission, to avoid a problem that the half-duplex device needs to simultaneously perform receiving and sending in a large transmission latency scenario.

公开(公告)号：US20220393957A1

公开(公告)日：2022-12-08

申请号：US17886739

申请日：2022-08-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaolu WANG ,  Hejia LUO ,  Ying CHEN ,  Rong LI ,  Bin WANG

IPC: H04L43/0864

Abstract: Embodiments of this application provide a timing advance determining method and a communication apparatus, to improve precision of calculating a timing advance (Timing Advance, TA) by a terminal, and reduce inter-symbol interference (Inter-Symbol Interference, ISI). The method includes: A first network device determines a first parameter based on a first delay compensation value, where the first delay compensation value is delay compensation made by the first network device for receiving a signal sent by a terminal, the first parameter indicates a difference between a round-trip delay of a feeder link in a non-terrestrial network NTN and the first delay compensation value, and the difference is used to determine a TA used by the terminal for signal sending; and the first network device sends the first parameter.

公开(公告)号：US20220286948A1

公开(公告)日：2022-09-08

申请号：US17825787

申请日：2022-05-26

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hejia LUO ,  Xiaolu WANG ,  Jianwei ZHOU ,  Chenlei XU ,  Ying CHEN ,  Rong LI

IPC: H04W48/16 ,  H04B7/185

Abstract: The present disclosure relates to access methods and apparatuses. In one example method, a terminal device determines, based on whether a first frequency offset parameter is in a frequency offset parameter range, whether to access a first cell. If the first frequency offset parameter is in the frequency offset parameter range, a current location of the terminal device is not at an edge of the cell. Otherwise, the current location of the terminal device may be at the edge of the cell.