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公开(公告)号：US11985700B2
公开(公告)日：2024-05-14
申请号：US17240603
申请日：2021-04-26
Applicant: Huawei Technologies Co., Ltd.
Inventor： Ji Wu , Jianqin Liu , Jun Zhu
IPC: H04W72/04 , H04L5/00 , H04W16/14 , H04W74/0808
CPC classification number: H04W74/0808 , H04L5/0048 , H04W16/14
Abstract: A method for radio link monitoring on an unlicensed spectrum and a communications apparatus is provided. The method includes: A terminal device determines one or more channel occupancy times (COTs). The terminal device detects one or more downlink reference signals within the one or more COTs. The terminal device determines, based on the downlink reference signal detected within the one or more COTs, whether a channel needs to be reconnected. According to the method for radio link monitoring on an unlicensed spectrum that is provided in this application, accuracy of radio link monitoring performed on an unlicensed spectrum can be ensured, precision of a result of the radio link monitoring can be improved, and a more accurate result of the radio link monitoring can be obtained, thereby improving communication efficiency and communication quality.
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公开(公告)号：US11914060B2
公开(公告)日：2024-02-27
申请号：US17102120
申请日：2020-11-23
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: G01S5/02 , H04L5/00 , H04W72/0453
CPC classification number: G01S5/0221 , G01S5/0215 , G01S5/0268 , H04L5/0048 , H04W72/0453
Abstract: This application provides a positioning method, apparatus, and device. The method includes: receiving a first positioning reference signal PRS on a first frequency domain resource, where the first frequency domain resource is a frequency domain resource in an unlicensed spectrum; receiving a second PRS on a second frequency domain resource, where the second frequency domain resource is a frequency domain resource in a licensed spectrum; determining, based on the first PRS and the second PRS, a first positioning measurement result corresponding to the first PRS and a second positioning measurement result corresponding to the second PRS; and determining a location of a terminal based on the first positioning measurement result and the second positioning measurement result. The method may be applicable to quickly and accurately determining the location of the terminal without occupying a large quantity of frequency domain resources in the licensed spectrum.
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公开(公告)号：US11882603B2
公开(公告)日：2024-01-23
申请号：US17171076
申请日：2021-02-09
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
CPC classification number: H04W74/0833 , H04L5/0016 , H04W72/0453 , H04W74/008 , H04W74/0808 , H04W76/11
Abstract: This application provides a random access method, apparatus, and device, and a storage medium. The method includes: A terminal device scrambles first identification information of the terminal device by using an OCC, and sends a first message to a network device. After receiving the first message sent by the terminal device, the network device sends a second message to the terminal device based on the first message, where the second message includes identification information of one or more terminal devices that succeed in random access, so that the terminal device can determine, based on the identification information of the one or more terminal devices the one or more terminal devices include the first identification information of this terminal device, whether this terminal device succeeds or fails in random access.
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公开(公告)号：US11856560B2
公开(公告)日：2023-12-26
申请号：US17172432
申请日：2021-02-10
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: H04W72/0446 , H04W74/08 , H04W72/23
CPC classification number: H04W72/0446 , H04W72/23 , H04W74/0808
Abstract: This application provides a system information transmission method, and a related device and system. The method includes: receiving, by a network device, a system information request sent by one or more terminals; transmitting, by the network device, system information SI, where SI transmitted for one terminal has a quasi-co-location QCL with a portion of downlink signal blocks, and the portion of downlink signal blocks are a subset of all downlink signal blocks transmitted by the network device; and sending, by the network device, first indication information, where the first indication information indicates a mapping between a downlink signal block and SI, and the downlink signal block has a QCL with the SI corresponding to the downlink signal block. The foregoing solution can reduce system overheads and improve resource utilization.
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公开(公告)号：US11683732B2
公开(公告)日：2023-06-20
申请号：US16842792
申请日：2020-04-08
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Hongjia Su , Jun Zhu , Yingpei Lin
CPC classification number: H04W36/0077 , H04W36/08 , H04W36/34 , H04W72/0446 , H04W74/04 , H04W74/08 , H04W84/12
Abstract: In various embodiments, an access point sends a first frame. The first frame carries a TXOP handover enforcement THE indication field which is a first value or a second value. The first value instructs a station that has accessed a channel to hand over a held TXOP to the access point, and the second value instructs the station that has accessed the channel to hand over the held TXOP to the access point when a handover condition is satisfied. It can be learned that the STA hands over the held TXOP to the AP. Therefore, the AP may be a TXOP holder through the TXOP handover even if the AP fails to obtain the channel through contention, so that a probability of holding the TXOP by the AP is improved, a probability of scheduling a STA by the AP is improved, and system resource utilization is improved.
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Patent Agency Ranking
公开(公告)号：US11553531B2
公开(公告)日：2023-01-10
申请号：US16991227
申请日：2020-08-12
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Abstract: Embodiments of this application provide a contention window management method applied to an unlicensed band. The method includes sending, by a sending device, one or more data packets to one or more receiving devices in one reference time unit or a plurality of reference time units, where the one or more data packets occupy a first bandwidth. The method further includes receiving, by the sending device from the one or more receiving devices, a hybrid automatic repeat request HARQ or HARQs for the one or more data packets. The sending device determines a contention window (CW) size of a second bandwidth with reference to the HARQ or HARQs. The CW update based on HARQ feedback improves communication efficiency.
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公开(公告)号：US11516843B2
公开(公告)日：2022-11-29
申请号：US17031604
申请日：2020-09-24
Applicant: Huawei Technologies Co., Ltd.
Abstract: This application provides a communications method, which includes: performing, by a network device, LBT on a first carrier, and determining a time offset when the LBT is completed, where the first carrier is used to send a first SS Burst Set, and the time offset is a time offset of an actual transmission time of the first SS Burst Set on the first carrier relative to a configured transmission time of the first SS Burst Set; sending, by the network device, the time offset to a terminal; and receiving, by the terminal, the time offset, and performing rate matching on the first carrier based on the time offset. Thus, the terminal may determine the actual transmission time of the first SS Burst Set based on the time offset, to perform the rate matching and accurately parse downlink data, thereby improving reliability of a communications system.
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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
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.
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公开(公告)号：US11457473B2
公开(公告)日：2022-09-27
申请号：US16656282
申请日：2019-10-17
Applicant: Huawei Technologies Co., Ltd.
Abstract: This application discloses a communication method. The method includes: comparing, by a second transmit end device, a second bandwidth carrying at least one second service transmission and a first bandwidth, wherein the first bandwidth is used by a first transmit end device within a first specified time period on an unlicensed frequency band to complete first service transmission, the at least one second service transmission started in a remaining time period of the first specified time period after the first service transmission is completed; performing channel listening on the second bandwidth based on a result of the comparison; and performing, by the second transmit end device, the second service transmission on the second bandwidth if the second bandwidth is found to be in an idle state. In addition, a corresponding transmit end device is disclosed. This application discloses a channel listening mechanism applicable to a flexible-bandwidth scenario.
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公开(公告)号：US11252766B2
公开(公告)日：2022-02-15
申请号：US16567267
申请日：2019-09-11
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Abstract: The present disclosure relates to data transmission methods and communications devices. One example communications device includes a transceiver. The transceiver is configured to send a transmission frame to a second communications device, where the second communications device acquires data information in the transmission frame, and the transmission frame includes a first part and a second part. The transceiver is configured to send the first part of the transmission frame by using a first quantity of subcarriers. The transceiver is configured to send the second part of the transmission frame by using a second quantity of subcarriers, where the first quantity is not equal to the second quantity. The transceiver is further configured to perform a next time of information transmission with the second communications device.
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