公开(公告)号：US11638300B2

公开(公告)日：2023-04-25

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：US11601972B2

公开(公告)日：2023-03-07

申请号：US16932333

申请日：2020-07-17

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yingpei Lin ,  Jiayin Zhang ,  Jun Luo ,  Le Liu

IPC: H04W74/04 ,  H04L5/00 ,  H04W72/04 ,  H04L9/40 ,  H04L69/22 ,  H04W72/0453 ,  H04W48/12 ,  H04W48/00 ,  H04L27/26 ,  H04W84/12 ,  H04W88/08

Abstract: The method includes generating, by an access point (AP), signaling that includes an AP identifier (ID) field, a bandwidth (BW) field, a guard interval (GI) field, a cyclic redundancy check (CRC) field, and a tail field, the AP ID field is used to indicate an ID of the AP, the BW field is used to indicate bandwidth required for data transmission subsequent to the signaling, the GI is used to indicate a length of a cyclic prefix (CP) required for data transmission subsequent to the signaling, the CRC field is used to guard a field before the CRC field in the signaling, and the Tail field is used to empty an encoder and a decoder, where the CRC field and the Tail field are the last two fields of the signaling. The method also includes sending, by the AP, the signaling.

公开(公告)号：US11497045B2

公开(公告)日：2022-11-08

申请号：US16837827

申请日：2020-04-01

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04W4/00 ,  H04W72/12 ,  H04W74/00 ,  H04W84/12

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：US20220248466A1

公开(公告)日：2022-08-04

申请号：US17721608

申请日：2022-04-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Weiwei Fan ,  Jiayin Zhang ,  David Jean-Marie Mazzarese

IPC: H04W74/08 ,  H04W74/00 ,  H04W72/04 ,  H04W72/12

Abstract: Embodiments of this application provide an unlicensed frequency band-based resource configuration method and an apparatus, to resolve a problem of configuring a fixed frame period FFP for a terminal device operating in an unlicensed frequency band in a current technology. The method includes: A network device sends fixed frame period FFP configuration information to a terminal device, where the FFP configuration information indicates an FFP configuration of the terminal device, an FFP is a period used by the terminal device to transmit a signal, the FFP includes channel occupancy time COT and an idle period Idle period, the channel occupancy time COT is used by the terminal device to transmit the signal, and the idle period is used by the terminal device to perform LBT.

公开(公告)号：US11323989B2

公开(公告)日：2022-05-03

申请号：US15904522

申请日：2018-02-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jiayin Zhang ,  Mohamed Adel Salem

IPC: H04W72/04 ,  H04W16/14 ,  H04L5/00 ,  H04W88/08

Abstract: Methods and apparatus that support dynamic bandwidth changes for downlink transmissions in unlicensed spectrum are provided. The provided methods and apparatus provide acquired bandwidth indications through downlink control information (DCI) for bandwidth(s) acquired within an unlicensed spectrum bandwidth part (BWP) or component carrier (CC).

公开(公告)号：US20220110103A1

公开(公告)日：2022-04-07

申请号：US17500888

申请日：2021-10-13

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Jun Luo ,  Jiayin Zhang ,  Jiyong Pang

IPC: H04W72/04 ,  H04L5/00 ,  H04B7/06 ,  H04W84/12 ,  H04W88/08

Abstract: A WLAN system resource indication method and apparatus are provided. The method includes: generating, by an access point, a frame that carries resource indication information; and sending, to multiple stations, the frame that carries the resource indication information. The resource indication information includes multiple pieces of sub resource indication information. Correspondingly, each piece of the sub resource indication information uniquely corresponds to one of the multiple stations. Therefore, a station side does not need read the entire resource indication information, so as to reduce resource overheads and improve efficiency.

公开(公告)号：US20210360690A1

公开(公告)日：2021-11-18

申请号：US17336477

申请日：2021-06-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lei Huang ,  Yingpei Lin ,  Jiayin Zhang

IPC: H04W74/08 ,  H04W72/04

Abstract: A channel access method is provided. Under the method, a network element performs random backoff listen before talk (LBT) for channel preemption, and after the preemption succeeds, performs signal transmission in the first transmission time interval TTI within a maximum channel occupancy time MCOT. The network element also performs nonrandom backoff LBT for channel preemption before another at least one TTI within the maximum channel occupancy time MCOT.

公开(公告)号：US20210337416A1

公开(公告)日：2021-10-28

申请号：US17371957

申请日：2021-07-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ji Wu ,  Jianqin Liu ,  Jiayin Zhang

IPC: H04W24/10 ,  H04W74/08

Abstract: Embodiments of this application provide a control information transmission method. The method includes: User equipment UE sends report information to a base station, where the report information includes a detection result of one or more downlink reference signals of the UE or a status of a timer/counter corresponding to the one or more downlink reference signals; the UE receives feedback information from the base station, where the feedback information includes sending status information of the one or more downlink reference signals.

公开(公告)号：US11115991B2

公开(公告)日：2021-09-07

申请号：US16197906

申请日：2018-11-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xun Yang ,  Yi Luo ,  Jiayin Zhang

IPC: H04W72/12 ,  H04W16/14 ,  H04W72/04 ,  H04W88/02 ,  H04W88/08

Abstract: A method includes sending, by an access point, a scheduling request to a first scheduling server according to a data transmission requirement, where the scheduling request includes frequency band bandwidth information of a contention frequency band that is applied for and frequency band use time information of the contention frequency band that is applied for. The method also includes receiving, by the access point, a contention frequency band that is allocated by the first scheduling server to the access point according to a spectrum list and the scheduling request, where the spectrum list includes at least frequency band use information and interference information of the access point. The method also includes performing, by the access point, scheduling transmission by using the allocated contention frequency band.

公开(公告)号：US11025286B2

公开(公告)日：2021-06-01

申请号：US16872912

申请日：2020-05-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jung Hoon Suh ,  Jiayin Zhang ,  Osama Aboul-Magd

IPC: H04B1/12 ,  H04L27/26 ,  H04L5/00

Abstract: An OFDMA subframe carrying different data fields in different time segments may include a separate short training field (STF), and a separate set of long training fields (LTFs), for each of the data fields to accommodate time-reuse scheduling. Communicating a separate STF for each data field may allow receivers to re-adjust automatic gain control (AGC) when the data fields carry different numbers of space-time-streams. Likewise, communicating separate sets of LTFs for each data field may allow different beamforming parameters to be applied to different data fields.