公开(公告)号：US10506597B2

公开(公告)日：2019-12-10

申请号：US15843300

申请日：2017-12-15

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Ming Gan ,  Meilu Lin ,  Le Liu

IPC: H04W72/04 ,  H04W28/00 ,  H04L5/00 ,  H04B7/0452 ,  H04W72/12 ,  H04L27/26 ,  H04W84/12

Abstract: Embodiments provide a resource scheduling method, which can support reduction of transmission resource overheads in resource scheduling. The method is applied to a wireless local area network, where a next generation protocol followed by the wireless local area network predefines locations of resource units possibly allocated from a to-be-assigned frequency domain resource. The method includes: generating, by a sending end, resource scheduling information, where the resource scheduling information includes a bit sequence to indicate an actual allocation of a resource unit(s) from the to-be-assigned frequency domain resource, and at least some bits in the bit sequence are to indicate whether one or more of said resource unit locations possibly allocated for the to-be-assigned frequency domain resource is\are the actually allocated resource unit(s).

公开(公告)号：US10505775B2

公开(公告)日：2019-12-10

申请号：US15803654

申请日：2017-11-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Meilu Lin ,  Sheng Liu ,  Wei Lin ,  Jian Yu ,  Le Liu ,  Xun Yang ,  Shimon Shilo ,  Doron Ezri ,  Genadiy Tsodik ,  Oded Redlich

IPC: H04L27/26 ,  H04L29/08 ,  H04L5/00 ,  H04W84/12

Abstract: Embodiments of the present disclosure provide a physical layer protocol data unit PPDU transmission method and a corresponding PPDU transmission apparatus. Application of the method and apparatus in the embodiments of the present disclosure enables a receive end to quickly determine the starting position of the feature signal sequence by means of blind detection, and ensures that the receive end quickly completes data processing and status switching.

公开(公告)号：US10448331B2

公开(公告)日：2019-10-15

申请号：US15471768

申请日：2017-03-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei Lin ,  Le Liu ,  Jun Zhu ,  Weishan Lu

IPC: H04W76/16 ,  H04W24/08 ,  H04L12/26 ,  H04W80/06 ,  H04W84/04 ,  H04W84/12 ,  H04W88/06 ,  H04W4/44 ,  H04W4/90 ,  H04W48/18 ,  H04L29/08 ,  H04W52/02 ,  H04L5/00 ,  H04L27/26

Abstract: The disclosure discloses a high-efficiency short training field sequence generation method, a signal sending method, a signal receiving method, and related apparatuses, where the high-efficiency short training sequence generation method includes: increasing frequency domain density of a frequency domain sequence corresponding to a first high-efficiency short training field sequence to generate a frequency domain sequence with increased frequency domain density; generating a second high-efficiency short training field sequence according to the frequency domain sequence with increased frequency domain density; and using the second high-efficiency short training field sequence as a high-efficiency short training field sequence in a preamble sequence of a data transmission frame in a wireless local area network WLAN. In embodiments of the disclosure, a cycle of a high-efficiency short training field sequence used for performing stage-2 AGC adjustment in the WLAN may be increased, and a maximum CSD value that can be used is further increased.

公开(公告)号：US20190246399A1

公开(公告)日：2019-08-08

申请号：US16365041

申请日：2019-03-26

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Ming Gan ,  Meilu Lin ,  Le Liu

IPC: H04W72/04 ,  H04B7/0452 ,  H04W72/12 ,  H04L5/00 ,  H04W28/00

Abstract: Embodiments provide resource scheduling methods and apparatus that reduce transmission resource overhead in resource scheduling. The method can be applied to a wireless local area network, where a next generation protocol followed by the wireless local area network predefines locations of resource units potentially allocated from a to-be-assigned frequency domain resource. The method includes: generating, by a sending end, resource scheduling information, where the resource scheduling information includes a bit sequence to indicate an actual allocation of a resource unit(s) from the to-be-assigned frequency domain resource, and at least some bits in the bit sequence to indicate whether one or more of the resource unit locations potentially allocated for the to-be-assigned frequency domain resource are the actually allocated resource units.

公开(公告)号：US10342042B2

公开(公告)日：2019-07-02

申请号：US15492053

申请日：2017-04-20

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04W74/04 ,  H04L29/06 ,  H04W72/04 ,  H04L5/00 ,  H04L27/26 ,  H04W84/12 ,  H04W88/08 ,  H04W48/12 ,  H04W48/00

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：US10219258B2

公开(公告)日：2019-02-26

申请号：US15483811

申请日：2017-04-10

Applicant: Huawei Technologies Co., Ltd.

Inventor： Min Yan ,  Xin Xue ,  Le Liu

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

Abstract: In an uplink service transmission method, an access point divides an entire channel into resource blocks according to a quantity of stations that are connected to the access point, then allocates, to each station according to channel estimation information of each station, a resource block used to transmit uplink information, and separately sends channel allocation indication information to each station, so that each station finds, according to the channel allocation indication information, the resource block corresponding to the station, and transmits the uplink information by using the resource block, so as to implement that in an OFDMA system, multiple stations transmit uplink information in parallel, that is, resource blocks that are obtained by means of division can be simultaneously applicable to multiple stations.

公开(公告)号：US20180316467A1

公开(公告)日：2018-11-01

申请号：US16028884

申请日：2018-07-06

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Jun Zhu ,  Jiayin Zhang ,  Jiyong Pang ,  Le Liu

IPC: H04L5/00

CPC classification number: H04L5/0044 ,  H04L5/0048 ,  H04L5/0053 ,  H04L25/0204 ,  H04L27/2602 ,  H04W52/281 ,  H04W84/12

Abstract: Embodiments of the present invention provide an extended range SU mode PPDU transmission method and apparatus. The method comprises: generating an extended range SU mode PPDU, wherein a legacy preamble part in the extended range SU mode PPDU is transmitted by using a bandwidth of 20 MHz, a data part in the extended range SU mode PPDU is transmitted by using a narrowband, and a bandwidth in the narrowband transmission comprises at least one of the following parameters: a 26-tone RU, a 52-tone RU, a 106-tone RU, or a 242-tone RU; and sending the extended range SU mode PPDU. By applying the method and the apparatus in the embodiments of the present invention, transmission reliability of the data part is improved, performance of parts in the PPDU in an EXT SU mode is more balanced, and a coverage area of long-distance transmission is ensured.

公开(公告)号：US20170317868A1

公开(公告)日：2017-11-02

申请号：US15594185

申请日：2017-05-12

Applicant: Huawei Technologies Co., Ltd.

Inventor： Wei Lin ,  Le Liu ,  Sergio Benedetto ,  Guido Montorsi ,  Weishan Lu

IPC: H04L27/26 ,  H04L12/801 ,  H04W72/04 ,  H04W84/12

CPC classification number: H04L27/2608 ,  H04L1/0042 ,  H04L1/0071 ,  H04L1/04 ,  H04L27/26 ,  H04L47/34 ,  H04W72/04 ,  H04W84/12

Abstract: Embodiments of the present disclosure provide an interleaving processing method and device in a WLAN system. The apparatus includes: a bit parsing unit, configured to allocate bits in a coded data stream to n sub resource block interleaving units according to a specific sequence, where n is a positive integer greater than 1, and a value of n is a quantity of resource blocks allocated to the user; and the sub resource block interleaving units, configured to perform discrete interleaving on input bits. According to the foregoing apparatus and method, system performance can be improved.

公开(公告)号：US20170223734A1

公开(公告)日：2017-08-03

申请号：US15492053

申请日：2017-04-20

Applicant: Huawei Technologies Co., Ltd.

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

IPC: H04W74/04 ,  H04W72/04 ,  H04L29/06

CPC classification number: H04W74/04 ,  H04L5/0053 ,  H04L5/0092 ,  H04L27/2601 ,  H04L29/06 ,  H04L69/22 ,  H04W48/12 ,  H04W48/17 ,  H04W72/042 ,  H04W72/0453 ,  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.