公开(公告)号：US20230318751A1

公开(公告)日：2023-10-05

申请号：US18330919

申请日：2023-06-07

Applicant: Huawei Technologies Co., Ltd.

Inventor： Mohamed Adel Salem ,  Jiayin Zhang ,  Toufiqul Islam ,  Zhenfei Tang ,  Amine Maaref ,  Jianglei Ma

IPC: H04L1/1812 ,  H04W80/02 ,  H04L5/00 ,  H04W72/23

CPC classification number: H04L1/1819 ,  H04W80/02 ,  H04L5/0055 ,  H04W72/23

Abstract: A method includes receiving a first assignment for a first transmission with a first hybrid automatic repeat request (HARQ) process identifier (process ID) in a first network resource, receiving a second assignment for a second transmission with a second HARQ process ID in a second network resource, wherein the first network resource and the second network resource differ in a domain other than a time domain, detecting an indication indicating that the first HARQ process ID and the second HARQ process ID map to a same transmission block (TB), and communicating with an access node, a transmission associated with at least one of the first HARQ process ID or the second HARQ process ID.

公开(公告)号：US11664945B2

公开(公告)日：2023-05-30

申请号：US17510036

申请日：2021-10-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yunbo Li ,  Yanchun Li ,  Le Liu ,  Jiayin Zhang ,  Ming Gan

IPC: H04L5/00 ,  H04L27/26 ,  H04W24/02 ,  H04W72/04 ,  H04W84/12 ,  H04W48/12 ,  H04B7/0452 ,  H04W72/0446

CPC classification number: H04L5/0048 ,  H04L5/0053 ,  H04L5/0094 ,  H04L27/2602 ,  H04W24/02 ,  H04W72/0446 ,  H04B7/0452 ,  H04L5/0037 ,  H04L5/0064 ,  H04L27/2603 ,  H04W48/12 ,  H04W84/12

Abstract: The present invention discloses a method and an apparatus for indicating a channel in a wireless local area network WLAN. A sending station generates and sends a physical protocol data unit PPDU, the PPDU includes a preamble field and a data field, a high efficiency signal field HE-SIG-A of the preamble field includes a bandwidth identifier and a channel bonding identifier, and the channel bonding identifier is used to indicate whether a data transmission channel is continuous in a frequency domain. In the foregoing manner, a discontinuous channel in a frequency domain in a wireless local area network is indicated, an available channel for data transmission is improved, and a system throughput is increased.

公开(公告)号：US11611990B2

公开(公告)日：2023-03-21

申请号：US16999976

申请日：2020-08-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jiayin Zhang ,  Mohamed Adel Salem ,  Liqing Zhang

IPC: H04W74/08 ,  H04W16/14 ,  H04W72/04 ,  H04W72/14 ,  H04W76/27 ,  H04W72/0446 ,  H04W72/0453

Abstract: Method and devices are provided for a channel access mechanism for accessing a network on a random access channel (RACH). Methods involve defining a listen-before-talk (LBT) category to be used as part of a contention based procedure and how a contention window that is part of the LBT can be dynamically adjusted.

公开(公告)号：US11570804B2

公开(公告)日：2023-01-31

申请号：US17000131

申请日：2020-08-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Mohamed Adel Salem ,  Jiayin Zhang ,  Liqing Zhang

IPC: H04W72/14 ,  H04L41/0806 ,  H04W72/04 ,  H04W74/08 ,  H04L5/00

Abstract: Methods and devices are provided that enable configuration of a selected set of electronic devices (EDs) that are allocated the same time-domain resources and either orthogonal or the same frequency interlaces on a same unlicensed channel. Configuring the selected set of EDs in order to align transmission starting points in the unlicensed channel and utilizing blocking symbols for at least some of the transmission starting points, may mitigate mutual blocking during LBT procedures.

公开(公告)号：US20230024310A1

公开(公告)日：2023-01-26

申请号：US17948871

申请日：2022-09-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jiayin Zhang ,  Jun Zhu ,  Yingpei Lin ,  Xun Yang

IPC: H04W72/12 ,  H04W74/00

Abstract: A method comprises constructing, by an access point (AP), a radio frame within a scheduling window, the radio frame including at least a preamble part compatible with an existing IEEE 802.11 preamble legacy preamble, a preamble part used in a next-generation IEEE 802.11 standard (HEW preamble), and the first downlink subframe (DL subframe); sending the Legacy preamble, the HEW preamble and the first DL subframe in the radio frame; receiving at least one uplink subframe (UL subframe) located after the first DL subframe; wherein each of the at least one UL subframes is triggered by one DL subframe located before the UL subframe.

公开(公告)号：US20220174737A1

公开(公告)日：2022-06-02

申请号：US17673653

申请日：2022-02-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jiayin Zhang ,  David Jean-Marie Mazzarese

IPC: H04W74/08 ,  H04L1/16

Abstract: A contention window maintenance method and a communications apparatus are provided. A contention window maintenance method includes maintaining, by a communications apparatus in a first time window, a contention window value based on responses of N pieces of first reference data sent by the communications apparatus within a first reference time, N being an integer greater than 0, the responses comprising an ACK and/or a NACK, and the contention window value is maintained based on a proportion of ACKs in the received responses of the N pieces of first reference data and/or a proportion of NACKs in the received responses of the N pieces of first reference data.

公开(公告)号：US11265849B2

公开(公告)日：2022-03-01

申请号：US16901807

申请日：2020-06-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jiayin Zhang ,  Liqing Zhang

IPC: H04W72/04 ,  H04W72/12 ,  H04W72/14 ,  H04W74/08

Abstract: Methods and devices for grant-based uplink transmission in an unlicensed band are provided. Uplink grant messages are transmitted to electronic devices (EDs) in order to indicate time-frequency resources that are allocated to the EDs for uplink transmission in an unlicensed spectrum band. For a given ED, in the event that a first listen-before-talk (LBT) operation for the time-frequency resource allocated to the ED fails, the ED performs a second LBT operation within the allocated time-frequency resource at a start time based on a start point configuration within the allocated time-frequency resource. If the second LBT operation succeeds, the ED transmits an uplink transmission within a remaining portion of the allocated time-frequency resource that includes an activation signal to indicate a start of the uplink transmission, and uplink payload data.

公开(公告)号：US11223973B2

公开(公告)日：2022-01-11

申请号：US17002495

申请日：2020-08-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jiayin Zhang ,  Jun Luo ,  Phillip Barber

IPC: H04W28/06 ,  H04W52/02 ,  H04B7/26 ,  H04L27/26 ,  H04L29/06 ,  H04W84/12

Abstract: Embodiments of the present invention discloses a wireless local area network data transmission method and apparatus, which are used for improving data transmission efficiency. The method includes: generating, by an access point (AP), a physical layer protocol data unit (PPDU) of a wireless local area network, wherein the PPDU comprises a Physical Layer Convergence Protocol (PLCP) header domain and a data domain, wherein the PLCP header domain comprises a preamble and a control domain, and the control domain carries duration information, wherein the duration information is used for network allocation vector (NAV) setting and protecting transmission of subsequent one or more PPDUs after the generated PPDU in a transmission opportunity (TXOP), and a duration indicated by the duration information includes transmission time of the subsequent one or more PPDUs after the generated PPDU in the TXOP; and sending, by the AP, the generated PPDU.

公开(公告)号：US11212148B2

公开(公告)日：2021-12-28

申请号：US16819516

申请日：2020-03-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jiayin Zhang ,  Jun Zhu ,  Yalin Liu ,  Yingpei Lin

IPC: H04L27/26 ,  H04L29/06 ,  H04L5/00 ,  H04W84/12

Abstract: A method includes generating a preamble for a protocol version of a wireless local area network, where the preamble includes a legacy signal L-SIG field and a high efficiency signal HE-SIG field that are arranged in order, the HE-SIG field includes a first orthogonal frequency division multiplexing OFDM symbol and a second OFDM symbol that are arranged in order, and an input information bit of the first OFDM symbol is the same as that of the second OFDM symbol, and sending the preamble to a receive end device, so that the receive end device restores the preamble, and when determining that input information bits obtained after restoring the first OFDM symbol and the second OFDM symbol are the same, determines that the preamble is the preamble of the protocol version.

公开(公告)号：US11140579B2

公开(公告)日：2021-10-05

申请号：US16005564

申请日：2018-06-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Mohamed Adel Salem ,  Jiayin Zhang

IPC: H04W28/16 ,  H04W74/08 ,  H04W16/14

Abstract: Aspects of the present disclosure provided methods and devices for a transmit receive point (TRP) to access one or more unlicensed channels in an unlicensed spectrum jointly with at least one other TRP. An example method may include a step of aligning a starting time of a potential transmission on at least one of the one or more unlicensed channels with a starting time of a potential transmission of at least one other TRP on the at least one of the one or more unlicensed channels. A further step includes performing channel access on the at least one of the one or more unlicensed channels by performing at least one of a spatial domain channel access procedure or a combination of a spatial domain channel access procedure and a frequency domain multi-channel access procedure. Another step includes transmitting at the aligned starting time on the at least one of the one or more unlicensed channels in the joint access period when the at least one of the one or more unlicensed channels is available.